WO2018143724A1

WO2018143724A1 - Power demand device charging system installed in collective building

Info

Publication number: WO2018143724A1
Application number: PCT/KR2018/001453
Authority: WO
Inventors: 조성규
Original assignee: 주식회사 지오라인
Priority date: 2017-02-06
Filing date: 2018-02-02
Publication date: 2018-08-09
Also published as: KR102003518B1; KR20180091170A

Abstract

According to the present invention, a plurality of power demand devices can be stably charged while the power situation of a collective building is stably maintained, unnecessary power consumption can be prevented, while security is maintained, by using a user authentication socket not consuming standby power, a billing process for power use related to the charging of a power demand device can be simplified and automated, and a charging stopping-and-resuming operation for the power demand device can be automatically performed without user intervention by adaptively coping with changes in the power situation of the collective building, thereby enabling user convenience to improve.

Description

Electric power demand charging system installed in assembly building

The present invention relates to a charging system that is installed in a main power line connected to an external power source and an assembly building having a dedicated power line and a common power line branched from the main power line to charge a power demand device through the common power line. More specifically, the present invention can stably charge a plurality of power demand devices while maintaining a stable power situation of the assembly building, and unnecessary power consumption by using a user authentication outlet that does not consume standby power while maintaining security. Prevents and simplifies and automates the charging process for power usage related to charging of power demand devices, and adaptively responds to changes in the power situation of an assembly building, allowing users to stop and resume charges for power demand devices. The present invention relates to a power demand device charging system installed in an assembly building that can be automatically performed without user intervention to improve user convenience.

Increasingly, electric power demand devices, such as electric vehicles, that need to be charged using a large amount of electricity are increasing, and thus, for example, facilities for charging electric vehicles in an assembly building such as an apartment are being built. have.

In general, the power distribution system of an assembly such as an apartment specifies a maximum amount of power required by the assembly and is built to meet the maximum amount of electric power. An electric vehicle charging facility is added to the assembly to increase the power load belonging to the assembly. If this happens, the power situation becomes unstable. That is, when a plurality of electric vehicles are connected to the power distribution system and request charging, a power failure may occur when the amount of power supplied to the power loads exceeds the maximum amount of power.

In addition, power demand devices, such as electric vehicles, sometimes need to be powered by their owners where they do not own or reside. For this reason, for example, electrical outlets with built-in user authentication, power strips, electrical outlets, etc., which allow an electric car owner to be connected to an electrical outlet where he or she does not own or live, for example in an apartment underground parking lot. Charging facilities such as car chargers have been developed.

However, according to the conventional charging device, there is a problem that components for user authentication constituting the charging device consume power (hereinafter, standby power) by itself during standby operation.

In addition, according to the conventional charging facility, there is a case where there is a mismatch between a person (for example, a building owner / resident) who pays for standby power and an actual user (for example, an electric vehicle owner). There is a problem in that the billing process is complicated.

In addition, the conventional charging equipment has a problem that it can not adaptively cope with the change in the power situation of the assembly building. For example, when charging for an electric vehicle is forcibly terminated due to a change in electric power while charging the electric vehicle by using a charging facility provided in an underground parking lot of an assembly building such as an apartment, the electric power situation is stable. In order to resume charging even after returning, the user has to directly go to the underground parking lot where the charging facility is installed and recognize the charging facility as the charging facility.

On the other hand, in the case of the electric vehicle mobile charging system, the mobility is added to increase the charging convenience, it is not possible to check the seal that can be easily secured in the fixed charging Republic of Korea Patent Application No. 10-2014-0142398 (Publication Patent Publication No. 10 -2016-0046483, published date: April 29, 2016, name: monitoring the abuse of the user through a separate technology (such as electric vehicle charging monitoring system), a plurality of users as the present invention will be described later It is necessary to make sure that the power supply is not a problem even when it appears.

The present invention provides a power demand device charging system capable of stably charging a plurality of power demand devices while maintaining a stable power situation of the assembly.

The present invention also provides a power demand device charging system capable of preventing unnecessary power consumption by using a user authentication outlet that does not consume standby power while maintaining security.

Another object of the present invention is to provide a power demand device charging system capable of simplifying and automating the charging process for power usage associated with charging a power demand device.

In addition, it is a technical problem to provide a charging system that can adaptively respond to changes in the power situation of the assembly building to improve the user convenience by automatically performing the charging stop and resume operation for the power demand device without user intervention. .

The present invention for solving the above problems is installed in a main power line connected to an external power source and a dedicated building having a dedicated power line and a common power line branched from the main power line as a charging system for charging a power demand device through the common power line A main power line ammeter for measuring the amount of power supplied through the main power line, a dedicated power line ammeter for measuring the amount of power supplied through the dedicated power line, a common power line ammeter for measuring the amount of power supplied through the common power line, and the common power line The main power line ammeter for measuring the amount of power supplied through a plurality of separate common power line, the breaker installed in the individual common power line and the power demand device is connected to the individual common power line to request charging, the main power line ammeter The dedicated power line ammeter, the ball The excess current amount is calculated according to the electric power line ammeter and the power amount information provided from the individual common power line ammeter, and based on whether the surplus current amount is greater than or equal to a set current threshold, the breaker installed in the individual common power line to which the power demand device is connected. And a shutoff controller for controlling the opening and closing.

In the electric power demand device charging system installed in the assembly building according to the present invention, when the plurality of power demand devices are connected to the individual common power line to request charging, the plurality of power demand devices request charging. Charging priority is assigned to the plurality of power demand devices based on a time point.

In the power demand device charging system installed in the assembly building according to the present invention, the shut-off controller is the plurality of electric power when the amount of surplus current is less than the current threshold during the charging of the plurality of power demand devices; The circuit breaker installed in the individual common power line to which the demand device is connected is turned off in the reverse order of the charging priority.

In the power demand device charging system installed in the assembly building according to the present invention, when the surplus current amount is more than the current threshold, the shut-off controller is to turn on the breaker in the off state in the reverse order of the off order It features.

The power demand device charging system installed in the assembly building according to the present invention further includes a user authentication receptacle connected to the individual public power line, and a charging intermediation module connected to the user authentication receptacle and the power demand device. When connected to a user authentication outlet, the user authentication outlet transmits a microcurrent to the charging intermediary module, and the charging intermediary module requests outlet ID information from the user authentication outlet in response to the microcurrent, and authenticates the user. Requesting an outlet operation password while transmitting the outlet ID information received from the outlet to the intermediary server, and transmitting the outlet operation password received from the intermediary server to the user authentication outlet, and the user authentication outlet from the charging intermediary module; The consensus received Operation of the password corresponding to the ID information outlet, the charging electric power supplied via the separate common power line in the charge mediation module medium is characterized in that to be supplied to the power demand device.

In the power demand device charging system installed in the assembly building according to the invention, the user authentication outlet comprises a micro current limiting device, a first authentication terminal and the authentication device, the micro current limiting device is connected to the power demand device When the charging mediation module is connected, a small current is generated and supplied to the charging mediation module, and the charging mediation module converts the small current into power for authentication and transmits the power to the first authentication terminal. It is operated by the authentication power received through the first authentication terminal and transmits the outlet ID information to the charging intermediary module, the charging intermediary module corresponding to the outlet ID information while transmitting the outlet ID information to the intermediary server Request an outlet operation password and authenticate the outlet operation password received from the intermediary server with the first authentication; The charging power is transmitted to the authentication device through the charging terminal, and the authentication device receives the power demand via the charging intermediation module when the operation code of the outlet received from the charging intermediation module corresponds to the outlet ID information. And controlled to be supplied to the apparatus.

In the power demand device charging system installed in the assembly building according to the present invention, the power for authentication is characterized in that the outlet ID request signal for requesting the ID of the user authentication outlet.

In the electric power demand device charging system installed in the assembly building according to the present invention, when the electric power demand device is disconnected from the user authentication outlet, the micro current limiting device no longer generates the micro current.

In the power demand device charging system installed in the assembly building according to the present invention, the first authentication terminal of the user authentication outlet is wirelessly connected to the charging intermediary module, the power for authentication and the outlet operation password from the charging intermediary module Characterized in that the wireless transmission.

In the power demand device charging system installed in the assembly according to the present invention, the minute current is characterized in that less than 10mA.

In the power demand device charging system installed in the assembly building according to the present invention, the user authentication outlet is characterized in that to provide the allowable current information directly to the charging intermediary module through the outlet ID information.

In the power demand device charging system installed in the assembly building according to the present invention, the authentication device is connected to the individual public power line by turning on the electronic switch when the outlet operation password received from the charging intermediary module corresponds to the outlet ID information. Characterized in that the charging power supplied through the charging intermediary module is controlled to be supplied to the power demand device.

In the power demand device charging system installed in the assembly building according to the present invention, the charging intermediary module receives a small current generated when the power demand device is connected to the user authentication outlet from the user authentication outlet, the outlet While the operation password is transmitted to the user authentication outlet, the power for authentication obtained from the small current is transmitted to the user authentication outlet, and after the user authentication is completed, the charging power can be supplied from the user authentication outlet to the power demand device. It is characterized by mediating so that.

In the power demand device charging system installed in the assembly building according to the present invention, the charging intermediary module, characterized in that it comprises an AC / DC converter for generating the power for authentication by converting the small current to a direct current.

In the power demand device charging system installed in the assembly building according to the invention, the charging intermediary module is characterized in that it does not have a built-in battery.

In the power demand device charging system installed in the assembly building according to the present invention, the charging intermediary module is characterized in that for transmitting a power amount information due to the power demand device every unit time period to the intermediate server.

In the electric power demand device charging system installed in the assembly building according to the present invention, when the electric power demand device is disconnected from the user authentication outlet, the electric power amount information is no longer transmitted to the intermediate server.

In the power demand device charging system installed in the assembly building according to the present invention, the charge amount of the last unit time period before the communication interruption between the charging intermediary module and the intermediary server is regarded as the charge amount of the unit time period where the communication interruption occurs. do.

In the power demand device charging system installed in the assembly building according to the invention, the charging intermediary module is characterized in that for transmitting the allowable current amount information of the user authentication outlet corresponding to the outlet ID information of the user authentication outlet to the intermediary server do.

In the power demand device charging system installed in the assembly building according to the invention, the charging intermediary module is characterized in that it is integrated with a plug for connection to the user authentication outlet.

In the electric power demand device charging system installed in the assembly building according to the present invention, the user authentication outlet is connected to the input terminal or the output terminal of the microcurrent limiting device to block excessive inflow of electric power into the microcurrent limiting device so that the microcurrent The apparatus may further include a normal closed relay (NCR) to protect the limiting device.

In the power demand device charging system installed in the assembly building according to the present invention, the user authentication outlet, characterized in that it further comprises a capacitor installed between the authentication device and the normal closed relay.

In the power demand device charging system installed in the assembly building according to the present invention, the charging intermediary module receives the password to be used next time at the end of the current authentication sequence from the intermediate server to the authentication device included in the user authentication outlet Characterized in that the transfer to be stored.

In the power demand device charging system installed in the assembly building according to the invention, the user authentication outlet further comprises a temperature sensor for sensing the temperature of the first power supply terminal for supplying charging power to the charging intermediary module. It is done.

According to the present invention, there is an effect that a power demand device charging system capable of stably charging a plurality of power demand devices while maintaining a stable power situation of the assembly building.

In addition, there is an effect that a power demand device charging system that can prevent unnecessary power consumption by using a user authentication outlet that does not consume standby power while maintaining security.

In addition, there is an effect that a power demand charging system is provided that can simplify and automate the charging process for the use of power associated with charging power demand.

In addition, there is an effect that the charging system that can adaptively respond to changes in the power situation of the assembly building to improve the user convenience by automatically performing the charging stop and resume operation for the power demand device without user intervention.

1 is a view showing a power demand device charging system installed in the assembly building according to an embodiment of the present invention,

2 and 3 is a view showing an example of a specific configuration for charging, including a user authentication outlet, a charging intermediary module in an embodiment of the present invention,

4 and 5 are views showing a modification of the example disclosed in Figs. 2 and 3,

FIG. 6 is a diagram illustrating another example of a specific configuration for charging including a user authentication outlet and a charging intermediary module according to an embodiment of the present disclosure.

FIG. 7 is a view showing another example of a specific configuration for charging including a user authentication outlet and a charging intermediary module according to one embodiment of the present invention;

8 is a diagram for describing a process of starting charging of a power demand apparatus according to one embodiment of the present invention;

9 is a view for explaining a process of completing the charging of the power demand device in an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments according to the inventive concept disclosed herein are provided only for the purpose of describing the embodiments according to the inventive concept. It may be embodied in various forms and is not limited to the embodiments described herein.

Embodiments according to the inventive concept may be variously modified and have various forms, so embodiments are illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the invention to the specific forms disclosed, it includes all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first or second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another, for example without departing from the scope of the rights according to the inventive concept, and the first component may be called a second component and similarly the second component. The component may also be referred to as the first component.

When a component is said to be "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may exist in the middle. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle. Other expressions describing the relationship between components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring", should be interpreted as well.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described herein, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined herein. Do not.

Hereinafter, a power demand device charging system installed in an assembly building according to the present invention will be described by taking the case of mainly operating for charging an electric vehicle, but the present invention is not limited thereto. The power demand device charging system installed in the assembly building according to the present invention can be applied not only to electric vehicles, but also to all power demand devices that require charging using a large amount of electric power, in particular, for mobile power demand devices. In addition, the user authentication outlet constituting the electric power demand charging system installed in the assembly according to the present invention, for example, has a shape of a connector such as a cable embedded in the wall of the building, or extend outward from the wall of the building. Can be.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a view showing a power demand device charging system installed in the assembly building according to an embodiment of the present invention.

Referring to FIG. 1, the present invention is installed in an assembly building having a main power line connected to an external power source 10 and a dedicated power line and a common power line branched from the main power line to charge a power demand device through the common power line. As the charging system, the external power supply 10, the main power line ammeter 20, the dedicated power line ammeter 30, the common power line ammeter 40, the individual common power line ammeter 50, the breaker 60, the cutoff controller 70, And a user authentication outlet 100 and a charging mediation module 400.

The external power source 10 is electric power supplied to the assembly building in which the distribution network located at the front of the consumer in relation to the electric power supply. For example, the assembly building may be an apartment, an office building, an apartment-type factory, an officetel, a townhouse, a multi-family house, or the like. In terms of power usage, the assembly consists of a dedicated power load that can be used exclusively by the owner or occupant, and a common power load that can be used in common. The external power supply 10 supplies power to the assembly building through the main power line, and the main power line is branched into a dedicated power line connected to the dedicated power load and a common power line connected to the common power load. The dedicated power line is branched into individual dedicated power lines connected to each dedicated power load, and the common power line is branched into a plurality of individual common power lines connected to each common power load. For example, a common power load connected to a plurality of individual public power lines may be various mobile power demand devices that require charging, such as an electric vehicle 600, as well as a fixed fixture.

The main power line ammeter 20 is installed in the main power line, and performs a function of measuring the amount of power supplied through the main power line and transmitting it to the cutoff controller 70.

The dedicated power line ammeter 30 is installed on the dedicated power line and performs a function of measuring the amount of power supplied through the dedicated power line and transmitting it to the cutoff controller 70.

The common power line ammeter 40 is installed in the common power line, and performs a function of measuring the amount of power supplied through the common power line and transmitting it to the cutoff controller 70.

The individual common power line ammeter 50 is installed on a plurality of individual common power lines branched from the common power line, and performs a function of measuring the amount of power supplied through the plurality of individual common power lines and transmitting them to the cutoff controller 70.

The breaker 60 is installed on a plurality of individual common power lines, and the opening and closing is controlled according to the control of the cutoff controller 70 to perform a function of determining whether to supply power through the individual common power lines.

When the electric vehicle 600 is connected to an individual common power line and requests charging, the cutoff controller 70 may include a main power line ammeter 20, a dedicated power line ammeter 30, a common power line ammeter 40, and an individual common power line ammeter ( The amount of surplus current is calculated according to the power amount information provided from 50), and the opening and closing of the breaker 60 installed in the individual public power line to which the electric vehicle 600 is connected based on whether the calculated surplus current amount is greater than or equal to the set current threshold. To control. For example, the cutoff controller 70 controls the breaker 60 to remain on when the amount of surplus current is greater than or equal to the current threshold, that is, to allow current to flow through the breaker 60, and the amount of surplus current If it is less than the threshold value can be controlled to block the flow of current through the breaker 60 by turning off the breaker (60).

For example, when the plurality of electric vehicles 600 are connected to a plurality of individual public power lines and request charging, the blocking controller 70 may include a plurality of electric vehicles 600 based on a time point at which the plurality of electric vehicles 600 requests charging. It may be configured to give charging priority to the electric vehicle 600. As such, when the cutoff controller 70 is configured to give charging priority to the plurality of electric vehicles 600, when there is a risk of overloading the assembly building due to lack of power, the opening and closing operation control of the breaker 60 is controlled. Through the charging power is supplied only to some of the electric vehicle 600 having a priority in the charging priority, it is possible to prevent the overload state of the assembly building.

For example, the blocking controller 70 may be connected to an individual common power line to which the plurality of electric vehicles 600 are connected when the amount of surplus current falls below a current threshold while charging the plurality of electric vehicles 600 is performed. The breaker 60 installed may be configured to be off in the reverse order of charging priority. In such a configuration, if the overload is not overloaded at the time of charging start, but there is a possibility that overloading occurs in the assembly building due to an increase in power consumption such as a dedicated power load during charging, the charging priority is reversed. By sequentially blocking the charging power supply from the electric vehicle 600 having the lowest charging priority among the electric vehicles 600, it is possible to prevent an overload condition of the assembly building. In this example, the shutoff controller 70 may be configured to turn on the circuit breaker 60 in the off state in the reverse order of the off order when the amount of surplus current exceeds the current threshold. In this configuration, after charging is temporarily suspended due to a change in the power situation of the assembly building during charging of the electric vehicle 600, when the power situation is stably changed again, the charging of the electric vehicle 600 is automatically performed. By resuming, the convenience of charging for the electric vehicle 600 can be ensured, and an overload condition of the assembly building can be effectively prevented.

The effects of this configuration will be described below in comparison with the prior art.

As described above, the conventional charging equipment has a problem that it is not adaptive to cope with the change in the power situation of the assembly building. For example, when charging for an electric vehicle is forcibly terminated due to a change in electric power while charging the electric vehicle by using a charging facility provided in an underground parking lot of an assembly building such as an apartment, the electric power situation is stable. In order to resume charging even after returning, the user has to directly go to the underground parking lot where the charging facility is installed and recognize the charging facility as the charging facility. However, according to the present invention, when the shutoff controller 70 is 1) the amount of surplus current becomes less than the current threshold during charging of the plurality of electric vehicles 600, that is, there is a fear of overload, The circuit breaker 60 installed on the individual public power line to which the electric vehicle 600 is connected is turned off in the reverse order of the charging priority, and 2) when the surplus current exceeds the current threshold, that is, the power situation is stable. In the case of returning to, since the circuit breaker 60 in the off state is turned on in the reverse order of the off order, user convenience related to charging is greatly improved.

The user authentication outlet 100 is connected to an individual public power line, and is a means for connecting the electric vehicle 600 through the charging intermediary module 400.

One end of the charging intermediary module 400 is connected to the user authentication outlet 100, the other end is connected to the electric vehicle 600, while supplying the charging power to the electric vehicle 600, while charging for power usage It functions to transmit necessary information to the mediation server 500.

Hereinafter, a detailed configuration for charging including the user authentication outlet 100 and the charging intermediary module 400 will be described.

2 is a diagram illustrating an example of a specific configuration for charging including a user authentication outlet 100 and a charging intermediary module 400 according to one embodiment of the present invention.

First, a characteristic configuration for charging will be described, and then detailed components will be described.

Referring to FIG. 2, when the charging intermediary module 400 is connected to the user authentication outlet 100, the user authentication outlet 100 transmits a micro current to the charging intermediation module 400. The charging mediation module 400 requests the outlet ID information from the user authentication outlet 100 in response to the minute current, and transmits the outlet ID information received from the user authentication outlet 100 to the intermediary server 500 while the outlet operation password is input. And request, and transmits the outlet operation password received from the mediation server 500 to the user authentication outlet (100). If the user authentication outlet 100 corresponds to the outlet ID information received from the charging intermediary module 400 corresponding to the outlet ID information, the electric vehicle 600 receives the charging power supplied through the individual common power line through the charging intermediary module 400. ).

More specifically, first, the micro current limiter 150 generates a micro current and supplies it to the charging mediation module 400 when the charging mediation module 400 to which the electric vehicle 600 is connected is connected. The charging mediation module 400 and the electric vehicle 600 may be connected through a connector. For example, the microcurrent can be a low current of tens of mA or less.

Next, the charging mediation module 400 converts the small current into the power for authentication and transmits the small current to the first terminal 120 for authentication.

Next, the authentication device 110 provided in the user authentication outlet 100 is operated by the power for authentication received from the charging intermediary module 400 through the first authentication terminal 120, charging mediation outlet ID information Send to module 400.

Next, the charging mediation module 400 requests the outlet operation password corresponding to the outlet ID information while transmitting the outlet ID information to the intermediary server 500, and authenticates the outlet operation password received from the intermediary server 500 with the first authentication. The terminal 120 is transmitted to the authentication device 110 through the medium.

Next, when the outlet operation password received from the charging mediation module 400 corresponds to the outlet ID information, the authentication device 110 may supply the charging power to the electric vehicle 600 through the charging mediation module 400. To control.

For example, the power for authentication may be an outlet ID request signal for requesting an ID of the user authentication outlet 100.

For example, when the electric vehicle 600 is disconnected from the user authentication outlet 100, the microcurrent limiter 150 may be configured to no longer generate a microcurrent.

For example, the first authentication terminal 120 of the user authentication outlet 100 is wirelessly connected to the charging intermediary module 400 is configured to wirelessly receive the power for authentication and outlet operation password from the charging intermediary module 400. Can be.

For example, the user authentication outlet 100 may be configured to directly provide the allowable current amount information to the charging intermediary module 400 through the outlet ID information.

For example, when the outlet operation password received from the charging mediation module 400 corresponds to the outlet ID information, the authentication device 110 turns on the electronic switch 130 to charge the charging power supplied through the individual public power line. The intermediary module 400 may be controlled to be supplied to the electric vehicle 600.

The charging mediation module 400 receives a small current generated when the electric vehicle 600 is connected to the user authentication outlet 100 from the user authentication outlet 100, and the outlet operation password received from the mediation server 500. To the user authentication outlet 100, while transmitting the power for authentication obtained from the minute current to the user authentication outlet 100, and after the user authentication is completed, the charging power from the user authentication outlet 100 to the electric vehicle 600 It can be mediated so that it can be supplied.

For example, the charging mediation module 400 may include an AC / DC converter 440 that converts a small current into direct current to generate power for authentication, and may not be configured to have a built-in battery.

For example, the charging mediation module 400 may be configured to transmit power amount information due to the electric vehicle 600 to the mediation server 500 every unit time period. Power amount information may be obtained by the power meter 430 provided in the charging mediation module 400.

For example, when the electric vehicle 600 is disconnected from the user authentication outlet 100, the amount of power information may be configured to no longer be transmitted to the intermediary server 500.

For example, the charging amount of the last unit time period before the communication interruption between the charging mediation module 400 and the mediation server 500 may be regarded as the charging amount of the unit time period at which the communication interruption occurred.

For example, the charging mediation module 400 may be configured to transmit the allowable current amount information of the user authentication outlet 100 corresponding to the outlet ID information of the user authentication outlet 100 to the relay server 500.

For example, the charging mediation module 400 may be configured to be integrated with a plug for connection to the user authentication outlet 100. In this case, the first power supply terminal 140 and the first authentication terminal 120 provided in the user authentication outlet 100, respectively, and the second power supply terminal 320 provided in the charging intermediary module 400 and It is connected to the second terminal 310 for authentication.

Hereinafter, an example of a detailed configuration of the user authentication outlet 100 and the charging mediation module 400 will be described.

The user authentication outlet 100 includes a micro current limiter 150, a first power supply terminal 140, an authentication device 110, a first authentication terminal 120, an electronic switch 130, and a changeover switch 180. It may include.

When the microcurrent limiting device 150 is connected to the charging intermediary module 400 to the user authentication outlet 100, the microcurrent limiting device 150 is connected to the first power supply terminal from the external power supply 10 through the microcurrent limiting device 150. 140). Since the small current does not flow in the state in which the charging intermediary module 400 is not connected to the user authentication outlet 100, standby power consumption of the user authentication outlet 100 does not occur.

As an example, the microcurrent limiter 150 may be implemented inexpensively and simply by connecting two resistors in parallel. The micro current flowing in this way is transferred from the first power supply terminal 140 of the user authentication outlet 100 to the second power supply terminal 320 of the charging intermediary module 400.

As another example, the microcurrent limiter 150 may be implemented as a resettable fuse. An example of a resettable fuse is a poly switch, which is an electronic device manufactured by Reychem of USA. The polyswitch is in a very low resistance (0 to 5 ohms) state, and when overcurrent flows into the circuit, it changes to high resistance by Joule heat caused by the overcurrent. In this way, when the polyswitch is changed to high resistance, the circuit is opened to act as a fuse. The difference from a conventional fuse is that the resettable fuse becomes low resistance again when the cause of the overcurrent is removed and can be reused. In the present invention, the polyswitch may be selected to have an allowable power capable of limiting the magnitude of the microcurrent to tens of mA or less. For example, a polyswitch having an allowable power of 20 W or less may be selected.

On the other hand, according to this configuration, the micro-current can be fully controlled, but if the power for authentication is not temporarily supplied due to external shock, etc. during charging, the electronic switch 130 is turned off, but in the electric vehicle 600 Since the electric charge is being charged, the electric power is in a state of inertia and a large power is to be supplied through the microcurrent limiting device 150.

At this time, hundreds to thousands of times the limit power of the microcurrent limiter 150 is instantaneously supplied, and the microcurrent limiter 150 blocks it.

However, there is a fear that the microcurrent limiting device 150 may be permanently burned out by the electric power storm of several hundred to several thousand times of the allowable amount, and thus may not operate as a normal function.

Therefore, a normal closed relay (170) is additionally provided in the microcurrent limiting device 150, and the relay is normally kept closed (that is, on) when no control power is supplied. When the electronic switch 130 operates, the control circuit is supplied to the normal closed relay 170 to be switched to an open, or off state, thereby preventing the microcurrent limiting device 150 from being burned out. .

On the other hand, for example, by adding the capacitor 160 to the control power line between the authentication device 110 and the normal closed relay 170, even after the control power supply is cut off, for example, the off state for about 0.1 seconds It can be configured to maintain. In this configuration, even when the power supply for authentication is not temporarily supplied due to an external shock during charging, it is possible to prevent the sudden amount of power from being applied to the microcurrent limiting device 150, thereby protecting the product.

On the other hand, when supplying a large power according to the charging of the electric vehicle 600 there is a fear of the heat generated in the supply terminal portion. In order to cope with this, by additionally providing a temperature sensor in the first power supply terminal 140, the temperature of the heat generating portion is measured to control the amount of charge (server control, authentication device control) or stop charging.

The authentication device 110 operates by receiving power for authentication from the charging intermediary module 400. The charging intermediary module 400 receives a small current from the user authentication outlet 100, converts the small current into power for authentication, and then uses the second authentication terminal 310 provided in the charging intermediary module 400. Transfer to the first authentication terminal 120 provided in the user authentication outlet 100 through, the authentication device 110 transfers the power for authentication from the charging intermediary module 400 through the first authentication terminal 120. Receive. Specifically, the authentication device 110 is generated under the control of the control unit 410 provided in the charging intermediary module 400 and the first authentication provided in the user authentication outlet 100 through the second authentication terminal 310. Receiving the power for authentication, that is, the outlet ID request signal transmitted to the terminal 120 for receiving the outlet ID information in response to the outlet ID request signal through the first terminal 120 for authentication, the second terminal for authentication ( 310).

Here, the outlet ID verification procedure, in addition to the above method, by attaching the RFID tag or NFC tag to the user authentication outlet 100, and installing the RFID rudder or NFC reader to the charging intermediary module 400, the user authentication outlet 100 It may also be performed by reading the outlet ID information directly from). In addition, when the user authentication outlet 100 transmits a flexible key value together with the outlet ID information to the charging intermediary module 400, security may be further enhanced.

After the outlet ID verification procedure is performed, the authentication device 110 receives the outlet operation password from the charging intermediary module 400 through the first authentication terminal 120 and the second authentication terminal 310. The authentication device 110 closes the electronic switch 130 so that the charging power is supplied from the external power supply 10 when the outlet operation password received from the charging mediation module 400 corresponds to its ID. The charging power is transmitted to the second power supply terminal 320 of the charging mediation module 400 through the first power supply terminal 140 of the user authentication outlet 100.

Once the electronic switch 130 is closed, the electronic switch 130 is kept closed by using a part of the DC power supplied from the second authentication terminal 310 or the AC power supplied from the external power supply 10. Can be. As one example, according to the specification of the electronic switch 130, AC power may be used to control the electronic switch 130, in this case using a portion of the AC power from the external power supply 10 electronic switch 130 Because it can be kept closed, a separate AC / DC converter 440 for this may not be necessary. In other words, although the authentication device 110 is operated by DC power, the electronic switch 130 may be driven by AC power after being triggered by receiving DC power from the outside.

When maintaining the closing of the electronic switch 130 using the DC power supplied from the first terminal 120 for authentication, when the charging intermediary module 400 is separated from the user authentication outlet 100, the second authentication Since the DC power for controlling the electronic switch 130 from the terminal 310 is not supplied, the electronic switch 130 is opened. On the contrary, when the electronic switch 130 is kept closed by using a part of the AC power supplied from the external power source 10, when the charging intermediary module 400 is separated from the user authentication outlet 100, the external The circuit to which the power source 10 is supplied is opened so that AC power can no longer be supplied from the external power source 10, so that the electronic switch 130 opens.

For example, the user authentication outlet 100 may be further provided with a switch 180 for converting the user authentication outlet 100 into an electric vehicle charging mode and a general electric device use mode. In order to prevent unauthorized use without proper authority, for example, the changeover switch 180 may be configured to be protected by a lock that is opened only by the administrator, or may be configured to be operated only by a key possessed by the administrator. have. When the administrator switches the conversion switch 180 to the general electric device use mode, the public power can be supplied by connecting the general electric device without a user authentication procedure. On the other hand, when the electronic switch 130 is configured to control, i.e., on / off an alternating current, as illustrated in FIGS. 4 and 5, it is sufficient to apply a small current switch to the changeover switch 180. The same function can be implemented.

The charging mediation module 400 includes a second authentication terminal 310, a second power supply terminal 320, an AC / DC converter 440, a control unit 410, a wireless communication unit 420, and a power metering unit 430. It may include.

The AC / DC converter 440 generates power for authentication by converting a small current of AC provided through the second power supply terminal 320 and the power meter 430 into a DC current.

The control unit 410 is the overall supply of the charging mediation module 400, including the power supply for authentication to the authentication device 110, the transmission of the outlet ID request signal and receiving the outlet ID information, the operation of receiving the outlet operation password from the mediation server 500. Control the operation. In detail, the control unit 410 supplies the authentication power generated by the AC / DC converter 440 to the authentication device 110 via the second authentication terminal 310 and the first authentication terminal 120. Control as possible. In addition, the controller 410 controls the outlet ID request signal to be transmitted to the user authentication outlet 100, and in response thereto, controls the outlet ID information transmitted by the user authentication outlet 100 to be received.

In addition, the controller 410 controls the wireless communication unit 420 to obtain an outlet operation password through wireless communication with the intermediate server 500. The outlet operation password thus obtained is provided to the authentication device 110 via the second authentication terminal 310 and the first authentication terminal 120.

On the other hand, for example, the charging intermediary module 400 may be configured to download and pass the password to be used next time at the end of the authentication sequence from the mediation server 500 to the authentication device 110 for storage 110. In this way, it is possible to prevent the leakage of passwords due to the use of fixed passwords. That is, since the intermediary server 500 and the authentication device 110 can compare the floating password with each other, it is impossible to start charging unless a new password is used next time, and thus, the password leakage prevention function can be enhanced.

Alternatively, for example, the outlet activation password may be obtained from a database built inside the charging mediation module 400 or the electric vehicle 600. However, as the number of user authentication outlets 100 increases, it may be difficult to store all outlet operation passwords inside the charging intermediary module 400 or the electric vehicle 600. Therefore, it is preferable that the charging intermediary module 400 is configured to obtain the outlet operation password from the intermediate server 500 located outside through the wireless communication unit 420 in the process of obtaining the outlet operation password. As such, when the outlet operation password is acquired from the outside, the risk of leakage of the entire outlet operation password, which may occur when the intermediary server 500 is not separately managed, may be reduced.

The power meter 430 measures the amount of power supplied from the user authentication outlet 100 through the second power supply terminal 320. The metered power is connected to the charging intermediary module 400 by a connector. 600). In addition, the measured amount of power information is transmitted to the control unit 410, and the electric power to the relay server 500 through the wireless communication via the wireless communication unit 420 based on the amount of power measured under the control of the control unit 410 Power amount information charged in the vehicle 600 is transmitted.

The first authentication terminal 120 of the user authentication outlet 100 may be connected to the second authentication terminal 310 of the charging intermediary module 400 by wire or wirelessly. For example, in the case of a wireless connection, the first authentication terminal 120 wirelessly receives authentication power from the second authentication terminal 310 and wirelessly transmits and receives information with the second authentication terminal 310. It can be implemented in the form of a wireless power reception and information transmission and reception unit. Correspondingly, the second authentication terminal 310 wirelessly transmits power for authentication to the second authentication terminal 310 and wirelessly transmits power for transmitting and receiving information with the first authentication terminal 120 wirelessly. And an information transmitting / receiving unit.

FIG. 6 is a diagram illustrating another example of a specific configuration for charging including the user authentication outlet 100 and the charging mediation module 402 according to one embodiment of the present invention.

Referring to FIG. 6, unlike the example disclosed in FIG. 2, the plug 300 including the second authentication terminal 310 and the second power supply terminal 320 may be independent from the charging intermediary module 402. Can be implemented. In this case, for charging, the user may connect the plug 300 to the charging intermediary module 402, and then connect the plug 300 to the user authentication outlet 100.

FIG. 7 is a diagram illustrating still another example of a specific configuration for charging including the user authentication outlet 100 and the charging mediation module 402 according to one embodiment of the present invention.

Referring to FIG. 7, the charging mediation module 402 is integrated into a connector for connection to the electric vehicle 600, which is a power demand device. According to this embodiment, since the charging mediation module 402 is embedded in the connector, the risk of breakage, flooding, theft, etc. of the charging mediation module 402 can be reduced. For example, a mechanical / electronic lock may be incorporated into the charging mediation module in the form of a connector to prevent theft.

Hereinafter, an example of a specific charging process will be described.

8 is a diagram for describing a process of starting charging of the electric vehicle 600 according to one embodiment of the present invention, and FIG. 9 is a diagram for describing a process of completing charging of the electric vehicle 600. .

8 and 9, in step S100, a process of connecting the electric vehicle 600 to the user authentication outlet 100 through the charging intermediation module 400 is performed.

In step S110, a process of conducting a small current is performed.

In step S120, a small current flows and is supplied to the charging intermediate module 400, and the charging intermediate module 400 converts the small current into power for authentication and performs the process.

In step S130, the charging mediation module 400 obtains the outlet ID information transmitted from the user authentication outlet 100.

In step S140, the charging intermediary module 400 transmits the outlet ID information to the intermediary server 500 while requesting the outlet operation password.

In step S150, the mediation server 500 transmits the outlet operation password to the charging mediation module 400.

In step S160, the user authentication outlet 100 receives the outlet operation password from the charging intermediary module 400, and if the outlet operation password corresponds to the outlet ID information, the electronic switch 130 is closed to close the electronic switch from the external power source 10. A process of supplying power to the first power supply terminal 140 through the switch 130 is performed.

In step S170, charging of the electric vehicle 600 starts as power supply is started.

In operation S180, the charging intermediary module 400 transmits the charging amount information provided to the electric vehicle 600 to the intermediary server 500 every unit time period.

In operation S190, the charging intermediary module 400 determines whether charging of the electric vehicle 600 is completed. If it is determined that the charging is completed, the process is switched to step S240, and if it is determined that the charging is not completed, the process is switched to step S200.

In operation S240, when the electric vehicle 600 is fully charged, the charging mediation module 400 transmits the final charging amount information to the mediation server 500.

In step S200, a process of determining whether the connector is removed, that is, whether the charging mediation module 400 is separated from the electric vehicle 600 is performed. If it is determined in step S200 that the connector is removed before charging is completed, the process is switched to step S240, and if it is determined that the connector is not removed, the process is switched to step S210.

In step S210, a process of removing the charging mediation module 400, that is, separating the charging mediation module 400 from the user authentication outlet 100 is performed. This process may be performed by removing the plug connected to the charging intermediary module 400 from the user authentication outlet.

In step S220, since the minute current is no longer energized, the power supply for authentication is stopped and communication between the charging mediation module 400 and the mediation server 500 is stopped.

In step S230, the charging amount of the last unit time period before the communication stop between the charging mediation module 400 and the mediation server 500 is regarded as the charging amount of the unit time period where the communication stop occurs.

In the charging process of the electric vehicle described above, in some cases, the allowable current amount of the user authentication outlet 100 may be different due to restrictions by the power transmission line. In order to prepare for such a case, it is necessary to grade and provide the allowable current information of the user authentication outlet 100. As a specific providing method, 1) the user authentication outlet 100 directly provides the allowable current amount information to the charging intermediary module 400 through the outlet ID information, and 2) the user authentication outlet 100 corresponding to the outlet ID information. There is a method of storing the allowable current amount information of the ()) in the intermediate server 500 and the charging intermediate module 400 receives the stored allowable current amount information from the intermediate server 500 during the authentication process.

According to the present invention, since the authentication procedure is performed by using a small current flowing by the operation of connecting the charging mediation module 400 to the user authentication outlet 100, the charging mediation module 400 does not have its own battery. You don't have to.

Furthermore, since the small current limiting device 150 is used to limit the magnitude of the small current, most electric devices including mobile phone chargers and electric shavers are charged even when connected to the user authentication outlet 100 without undergoing an authentication procedure. Can not receive.

Specifically, at the time of non-authentication (ie, prior to the authentication procedure), the maximum value of the micro current at the user authenticated outlet 100 may be 10 mA, for example. Thus, for example, when a heater having a rated power of 3,000W is connected to the user authentication outlet 100, only a maximum of 2.2W (220V * 10mA = 2.2W) can be supplied, so before going through the authentication procedure, The heater can not be used at all. As another example, in the case of a smartphone charger, a current of 0.15A is required. Since the maximum value of the micro current provided by the user authentication outlet 100 is only 10 mA, for example, before the authentication procedure, the smartphone charger is Can not be used at all.

In other words, the small amount of current (10 mA) has a sufficient size as the power supply for authentication to go through the authentication process, but even such a small amount of electric devices such as smartphone chargers can not be practically used. Even if the electricity corresponding to the maximum value of the micro current throughout the month is used without permission, the amount of electricity is only 220V * 0.01A * 24 hours * 31 days = 1.63kW, which is equivalent to 200 won.

In addition, according to the present invention, when a small current flows only when the charging intermediary module 400 is connected to the user authentication outlet 100, and the charging intermediary module 400 is separated from the user authentication outlet 100, the electronic switchgear The charging intermediary module 400 is opened through the first power supply terminal 140 of the user authentication outlet 100 and the second power supply terminal 320 of the charging mediation module 400 from the external power supply 10. Current does not flow. When the charging intermediary module 400 is not connected to the user authentication outlet 100, no minute current flows. Accordingly, the components for user authentication consume power, that is, standby power, during the standby operation of the user authentication outlet 100. You will not. As a result, there is no problem of inconsistency between the person paying the standby power (for example, the owner of the building) and the real user (for example, the owner of the electric vehicle).

In addition, as described above, according to the present invention, the charging mediation module 400 may not have its own battery. In this case, when the charging mediation module 400 is separated from the user authentication outlet 100, the charging mediation module The module 400 may no longer transmit power charge amount information to the intermediary server 500, which may cause a problem in this regard. In order to solve this problem, as described above with reference to FIGS. 8 and 9, the wireless communication unit 420 of the charging mediation module 400 may be configured to periodically communicate with the mediation server 500.

In detail, the wireless communication unit 420 of the charging mediation module 400 may communicate with the mediation server 500 every unit time period to transmit power charge amount information per unit time to the mediation server 500. If the electric vehicle 600 is fully charged, the charging intermediary module 400 may be connected to the user authentication outlet 100 to calculate the power charging amount for the entire time of receiving power. On the contrary, however, if the charging intermediary module 400 is disconnected from the user authentication outlet 100 in the middle without fully charging the electric vehicle 600, the electric vehicle 600 is disconnected in the last unit time period before disconnection (that is, before communication stops). The amount of power charged to the intermediate server 500 may be regarded as the amount of power charged in a unit time period in which separation (that is, communication interruption) occurs.

For example, when the unit time period is 1 minute, if 10 minutes have elapsed after the charging, the last charge of the power is transmitted to the intermediary server 500, and if charging stops between 10 minutes and 11 minutes, between 9 minutes and 10 minutes Can be considered as the power charge between 10 and 11 minutes. This is based on the fact that when charging an electric vehicle, up to 80-90% of the full charge is charged at the rated capacity, after which the current draws rapidly.

Alternatively, the unit time period may be arbitrarily selected from 10 minutes, 5 minutes, 30 seconds, not 1 minute. If the electric vehicle is separated in the middle without being fully charged, the electric charge of the electric vehicle will be overestimated as the unit time period increases, and as the unit time period decreases, the electric power of the electric vehicle becomes smaller. The filling amount will be more accurately calculated. Therefore, although it would be ideal to transmit power charge amount information in real time, there is a problem in terms of cost because there is a problem such as data communication amount and the communication cost is greatly increased. Preferably, the unit time period may be 1 minute as in the above example. In this case, when the electric vehicle is charged at 3.3kW per hour using the electric vehicle electric plan, an average electric charge of 330 won is generated in one hour. Therefore, if one minute is a unit time period, the electric charge for one minute is 5.5 won.

As described in detail above, according to the present invention, there is an effect that a power demand device charging system capable of stably charging a plurality of power demand devices while maintaining the power situation of the assembly building stably.

Explanation of the sign

10: external power

20: main power line ammeter

30: dedicated power line ammeter

40: common power line ammeter

50: individual common power line ammeter

60: breaker

70: disconnect controller

100: user authentication outlet

110: authentication device

120: terminal for first authentication

130: electronic switchgear

140: first power supply terminal

150: micro current limiter

160: Normal Closed Relay (NCR)

170: capacitor

310: second authentication terminal

320: second power supply terminal

400: charging mediation module

410: control unit

420: wireless communication unit

430: power meter

440: AC / DC converter

500: mediation server

550: connector

600: electric car

Claims

A charging system for charging a power demand device through the common power line is installed in the main power line connected to an external power source and a dedicated power line and a common power line branched from the main power line.

A main power line ammeter for measuring the amount of power supplied through the main power line;

A dedicated power line ammeter for measuring the amount of power supplied through the dedicated power line;

A common power line ammeter for measuring the amount of power supplied through the common power line;

An individual common power line ammeter measuring an amount of power supplied through a plurality of individual common power lines branched from the common power line;

Breakers installed on the individual common power lines; And

When the power demand device is connected to the individual common power line to request charging, the surplus current amount is calculated according to the amount of power information provided from the main power line ammeter, the dedicated power line ammeter, the common power line ammeter, and the individual common power line ammeter. And a cut-off controller for controlling opening and closing of the breakers installed in the individual common power lines to which the power demand device is connected based on whether the amount of surplus current is greater than or equal to a set current threshold.
The method of claim 1,

The cutoff controller,

When a plurality of power demand devices are connected to the individual common power line to request the charge, the priority is given to the plurality of power demand devices based on the time point at which the plurality of power demand devices request charging; Power demand charging system installed in assembly building.
The method of claim 2,

The cutoff controller,

When the surplus current amount is less than the current threshold while charging of the plurality of power demand devices is performed, the circuit breakers installed on the individual common power lines to which the plurality of power demand devices are connected are arranged according to the reverse order of the charging priority. A power demand device charging system installed in the assembly, characterized in that off (off).
The method of claim 3,

The cutoff controller,

And turning off the circuit breaker in the off state in the reverse order of the off order, when the surplus current amount is equal to or greater than the current threshold value.
The method of claim 1,

A user authentication outlet connected to the individual public power line; And

Further comprising a charging intermediary module connected to the user authentication outlet and the power demand device,

When the charging mediation module is connected to the user authentication outlet,

The user authentication outlet sends a small current to the charging intermediary module,

The charging intermediary module requests the outlet ID information from the user authentication outlet in response to the minute current, requests the outlet operation password while transmitting the outlet ID information received from the user authentication outlet to an intermediary server, and the mediation server. Send the outlet operation password received from the user authentication outlet;

The user authentication outlet may be configured to supply charging power supplied through the individual common power line to the power demand device through the charging intermediary module when the outlet operation password received from the charging relay module corresponds to the outlet ID information. Characterized in that, the power demand charging system installed in the assembly building.
The method of claim 5,

The user authentication outlet includes a micro current limiting device, a first terminal for authentication and an authentication device,

The micro-current limiting device generates a micro current when the charging mediation module to which the power demand device is connected is connected to supply the charging mediation module,

The charging intermediary module converts the small current into the power for authentication to transmit to the first terminal for authentication,

The authentication device is operated by the authentication power received through the first authentication terminal and transmits outlet ID information to the charging intermediary module,

The charging intermediary module requests the outlet operation password corresponding to the outlet ID information while transmitting the outlet ID information to the intermediary server, and authenticates the outlet operation password received from the intermediary server via the first authentication terminal. To the device,

And the authentication device controls the charging power to be supplied to the power demand device through the charging intermediation module when the outlet operation password received from the charging intermediation module corresponds to the outlet ID information. Power demand charging system installed in the building.
The method of claim 6,

The first authentication terminal of the user authentication outlet is wirelessly connected to the charging intermediary module, characterized in that for receiving the wireless power for the authentication power and the operation password from the charging intermediary module, the power demand device installed in the assembly building Charging system.
The method of claim 6,

The authentication apparatus, when the outlet operation password received from the charging intermediary module corresponds to the outlet ID information, the electric power demand is supplied via the charging intermediary module by charging power supplied through the individual common power line by turning on the electronic switchgear. Power supply device charging system installed in the assembly, characterized in that the control to be supplied to the device.
The method of claim 5,

The charging mediation module,

Receiving a small current generated when the power demand device is connected to the user authentication outlet from the user authentication outlet,

Transmit the outlet operation password to the user authentication outlet, while transmitting the power for authentication obtained from the small current to the user authentication outlet,

And after the user authentication is completed, so that the charging power can be supplied from the user authentication outlet to the power demand device, the power demand device charging system installed in the assembly building.
The method of claim 9,

The charging intermediary module is characterized in that for transmitting the power amount information due to the power demand device every unit time period to the intermediate server, the power demand device charging system installed in the assembly building.
The method of claim 6,

The user authentication outlet,

And a normal closed relay (NCR) connected to an input terminal or an output terminal of the microcurrent limiting device to block excessive inflow of power into the microcurrent limiting device to protect the microcurrent limiting device. Power demand charging system installed in the assembly building.
The method of claim 11,

The user authentication outlet,

And a capacitor installed between the authentication device and the normal closed relay.
The method of claim 5,

The charging intermediary module receives the password to be used next time at the end of the current authentication sequence from the intermediary server to be delivered to the authentication device included in the user authentication outlet to be stored, the power demand installed in the assembly building Device charging system.
The method of claim 6,

The user authentication outlet further comprises a temperature sensor for sensing the temperature of the first power supply terminal for supplying charging power to the charging intermediary module, the power demand charging system installed in the assembly building.