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WO2017199665A1 - Dispositif de commutation, corps mobile et système d'alimentation électrique - Google Patents

Dispositif de commutation, corps mobile et système d'alimentation électrique Download PDF

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Publication number
WO2017199665A1
WO2017199665A1 PCT/JP2017/015546 JP2017015546W WO2017199665A1 WO 2017199665 A1 WO2017199665 A1 WO 2017199665A1 JP 2017015546 W JP2017015546 W JP 2017015546W WO 2017199665 A1 WO2017199665 A1 WO 2017199665A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
switching device
power
power source
current
Prior art date
Application number
PCT/JP2017/015546
Other languages
English (en)
Japanese (ja)
Inventor
直 森田
Original Assignee
ソニー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ソニー株式会社 filed Critical ソニー株式会社
Priority to JP2018518167A priority Critical patent/JPWO2017199665A1/ja
Publication of WO2017199665A1 publication Critical patent/WO2017199665A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for DC mains or DC distribution networks

Definitions

  • the present disclosure relates to a switching device, a moving body, and a power supply system.
  • a novel and improved switching device, moving body, and power supply capable of suppressing the occurrence of arc discharge at the time of power disconnection without reducing the power efficiency at the time of power supply with a small-scale configuration. Propose a system.
  • a first switch that switches connection and disconnection of a first current path from a power source to a load, and a second current path of the second current path from the power source to the load are provided in parallel with the first switch.
  • the second switch Provided between a second switch for switching between connection and disconnection, a power source, and the first switch and the second switch, and when the current from the power source is interrupted, the second switch causes the second current path to be A circuit for reducing the current flowing to the second switch until the shut-off state is established, and when the current is supplied from the power source, the second switch and the first switch are connected in this order, and the current from the power source is There is provided a switching device that shuts off the first switch and the second switch in this order.
  • a mobile provided with the above-mentioned switching device is provided.
  • a battery that supplies DC power
  • a drive unit that is driven by DC power supplied from the battery
  • at least one of the switching devices provided between the battery and the drive unit.
  • a power supply system is provided.
  • a novel and improved switching device capable of suppressing the occurrence of arc discharge with a small-scale configuration when power is cut without reducing power efficiency during power supply.
  • a mobile body and a power supply system can be provided.
  • FIG. 6 is an explanatory diagram illustrating another configuration example of the switching device 100.
  • FIG. 6 is an explanatory diagram illustrating another configuration example of the switching device 100.
  • FIG. 6 is explanatory drawing which shows in a timing chart the relationship between the amount of pushing of a switch, the transition of the state of a contact, and the voltage concerning a load.
  • 6 is an explanatory diagram illustrating another configuration example of the switching device 100.
  • FIG. 6 is an explanatory diagram illustrating another configuration example of the switching device 100.
  • FIG. 6 is an explanatory diagram illustrating another configuration example of the switching device 100.
  • FIG. 6 is an explanatory diagram illustrating another configuration example of the switching device 100.
  • FIG. 3 is an explanatory diagram illustrating a functional configuration example of a moving object 200 including a switching device 100.
  • Patent Documents 1 and 2 In the case of direct current power supply, there are other Patent Documents 1 and 2 as other techniques for suppressing the occurrence of arc discharge when power is cut off.
  • Patent Document 1 discloses a technique for suppressing the occurrence of arc discharge by providing a switching element on a path through which a current flows during DC power supply and turning off the switching element when the plug is removed from the plug receptacle. Yes.
  • Patent Document 2 also suppresses the occurrence of arc discharge by providing an arc absorption circuit including a switching element on a path through which a current flows during DC power supply, and turning off the switching element when the plug is removed from the plug receptacle.
  • the technology is disclosed.
  • the present disclosure has intensively studied a technology that can suppress the occurrence of arc discharge with a small-scale configuration when the DC power is interrupted without reducing the power efficiency when supplying DC power. went.
  • the present disclosure reduces the power consumption of the circuit in a configuration in which a circuit for preventing arcing of the mechanical contact is provided in parallel with the mechanical contact when the DC power is interrupted.
  • the inventors have devised a switching device that can increase the withstand voltage while suppressing it.
  • FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
  • FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
  • FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
  • FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
  • FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
  • FIG. 1 shows a configuration example of a DC power supply system 1 including a DC power supply device 10 that supplies DC power and a load 20 that receives DC power from the DC power supply device 10.
  • the DC power supply device 10 is a power supply device that supplies DC power.
  • the DC power supply device 10 may include a storage battery inside and supply DC power to the load 20, such as sunlight, wind power, geothermal heat, biomass, and other natural energy.
  • the power generated by the power supply may be fed to the load 20 as DC power.
  • FIG. 1 shows a DC power supply system 1 in which a switching device 100 is provided between the DC power supply device 10 and the load 20.
  • the switching device 100 is a device provided for switching between supply and interruption of DC power from the DC power supply device 10.
  • the switching device 100 is a circuit for preventing an arc from occurring when the DC power is supplied from the DC power supply device 10 and the power supply is cut off. Is provided.
  • the switching device 100 that switches between supply and interruption of DC power between the DC power supply device 10 and the load 20
  • the DC power is disconnected without lowering the power efficiency at the time of DC power supply.
  • the occurrence of arc discharge can be suppressed.
  • the switching device 100 according to the present embodiment includes a small-scale circuit as will be described later, it is possible to suppress the occurrence of arc discharge when the DC power is cut without increasing the circuit scale.
  • FIG. 2 is an explanatory diagram illustrating a configuration example of the switching device 100. As shown in FIG. 2, the switching device 100 includes a circuit 110 and a switch SW1.
  • the circuit 110 is a circuit that operates in a direction that reduces the current from the DC power supply device 10 when the power supply is cut off while the DC power supply is supplied from the DC power supply device 10.
  • the circuit 110 includes a MOSFET T1, a capacitor C1, a resistor R1, and a diode D1.
  • the circuit 110 functions as a voltage integration circuit.
  • the MOSFET T1 uses an n-type MOSFET (Metal Oxide Semiconductor Field Effect Transistor) in the present embodiment.
  • the MOSFET T1 is provided on a path through which a current flows from the DC power supply device 10 to the load 20 in a state where the contact 1b of the switch SW1 is connected.
  • the capacitor C1 is provided between the drain terminal and the gate terminal of the MOSFET T1.
  • the resistor R1 is provided between the gate terminal and the source terminal of the MOSFET T1.
  • the capacitor C1 and the resistor R1 are connected in series.
  • the switch SW1 has contacts 1a and 2a.
  • the contact 1a is provided on a current path (first current path) through which a current flows from the DC power supply device 10 to the load 20 without passing through the MOSFET T1.
  • the contact 1b is provided on a current path (second current path) through which a current flows from the DC power supply device 10 to the load 20 via the MOSFET T1.
  • the switch SW1 is, for example, a push button switch, a slide switch, or a relay switch.
  • the switch SW1 operates to connect the contacts 2a and 1a in this order when supplying DC power from the DC power supply device 10, and when the DC power from the DC power supply device 10 is cut off, the switch 1a, It operates so as to deviate in the order of 2a.
  • the switch SW1 may be provided with an elastic body such as a spring 101 in order to connect or separate the contacts 1a and 2a.
  • the operation of the switching device 100 will be described. First, the operation when supplying DC power from the DC power supply device 10 will be described.
  • the switch SW1 When the switch SW1 is pushed in to supply DC power from the DC power supply device 10, the contact 2a is first connected. At this time, since the MOSFET T1 is in an off state, no current flows from the DC power supply 10 to the load 20.
  • the voltage generated between the contact point 1a and the contact point 2a induces the gate voltage of the MOSFET T1 through the capacitor C1, and turns on the MOSFET T1.
  • a current flows in a direction that reduces the voltage between the contact point 1a and the contact point 2a.
  • the MOSFET T1 is turned on, and a current flows in a direction that lowers the voltage between the contact point 1a and the contact point 2a, whereby the potential difference between the contact point 1a and the contact point 2a is reduced.
  • the voltage between the drain terminal and the source terminal of MOSFET T1 falls within the voltage along the transfer function of the FET gate voltage.
  • the capacitor C1 is charged by the voltage generated between the contact point 1a and the contact point 2a after the contact point 1a is separated, the gate voltage of the MOSFET T1 is lowered, and the MOSFET T1 shifts to the off state, so that the MOSFET T1 No current flows in the.
  • the contact 2a is separated after the MOSFET T1 shifts to the OFF state, no electric current flows through the MOSFET T1, so that no arc discharge occurs.
  • the diode D1 connected in parallel to the resistor R1 of the circuit 110 is stored in the capacitor C1 without going through the resistor R1 when both the contact 1a and the contact 2a are connected and the contact 1a and the contact 2a are short-circuited. It is provided to discharge the charged charges in a short time.
  • the diode D1 is provided in parallel with the resistor R1, so that the voltage integration function of the circuit 110 can be restored in a short time even if, for example, the connection of the contacts 1a and 2a causes chattering.
  • the resistor R1 supplies a voltage to the gate terminal of the MOSFET T1, and the voltage supply time is determined by the product relationship between the capacitance of the capacitor C1 and the resistance value of the resistor R1.
  • an n-type MOSFET is used as the MOSFET T1
  • the circuit 110 having a voltage integration function is arranged on the positive electrode side.
  • a circuit 110 having a voltage integration function may be arranged on the negative electrode using a p-type MOSFET.
  • the case of feeding DC power with a two-wire system using a positive electrode and a negative electrode has been shown.
  • the voltage integration function is also used when feeding DC power with a three-wire system using a positive electrode, neutral and negative electrode.
  • a circuit 110 having the following may be arranged. In the case of three-wire DC power supply, by arranging the circuit 110 on both the positive and negative electrodes, it is possible to suppress the occurrence of arc discharge when the DC power is interrupted.
  • FIG. 3 is an explanatory diagram showing another configuration example of the switching device 100. As shown in FIG. 2, the switching device 100 includes a circuit 110 and a switch SW2.
  • FIG. 3 is different from the switching device 100 of FIG. 2 in that a switch SW2 having three contacts 1a, 1b, and 2a is provided.
  • the contact 1b is provided on a current path (third current path) connecting the source terminal and the gate terminal of the MOSFET T1.
  • the switch SW2 is, for example, a push button switch, a slide switch, or a relay switch.
  • FIG. 3 shows a switching device 100 in which the switch SW2 is a push button switch.
  • the switch SW2 is in a state in which the contact 1b is connected and the contacts 1a and 2a are separated in a state where no DC power is supplied from the DC power supply device 10, and the DC power is supplied from the DC power supply device 10.
  • the switch SW2 is pushed in, the contact 2a is connected first, then the contact 1b is separated, and finally the contact 1a is connected.
  • the switch SW2 when the switch SW2 is pulled up when the DC power from the DC power supply device 10 is cut off, the contact 1a is first separated, then the contact 1b is connected, and finally the contact 2a is separated.
  • the switching device 100 can safely cut off the DC power from the DC power supply device 10 without generating an arc.
  • FIG. 4 is an explanatory diagram showing the relationship among the push amount of the switch SW2, the transition of the state of the contacts 1a, 1b, and 2a, and the voltage V LOAD applied to the load 20 in a timing chart.
  • the contact 2a When the switch SW2 is pushed in, as described above, the contact 2a is first connected at the time t1, then the contact 1b is disconnected at the time t2, and finally the contact 1a is connected at the time t3. Operate. When the contact 1a is connected, the voltage VLOAD applied to the load 20 increases.
  • the MOSFET T1 When the contact point 1a is separated at time t4, the MOSFET T1 is turned on. When the MOSFET T1 is turned on, a current flows in a direction in which the voltage between the contact point 1a and the contact point 2a is decreased, and thus the current from the DC power supply device 10 is gradually suppressed. Accordingly, when the contact point 1a is separated at the time t4, the voltage VLOAD applied to the load 20 starts to gradually decrease.
  • the contact 1b is connected at the time t5
  • the source terminal and the gate terminal of the MOSFET T1 are short-circuited.
  • the MOSFET T1 is turned off. That is, the circuit 110 is turned off regardless of the integration time of the circuit 110, and the current from the DC power supply device 10 is forced to be zero. Accordingly, the voltage V LOAD applied to the load 20 is forcibly reduced to zero.
  • the same contact piece may be used for the contacts 1a and 1b of the switch SW2.
  • the contact 1b is connected at a position where the contact 1a sufficiently secures a withstand voltage, the circuit 110 is turned off, and the contact 2a is separated. Even if it becomes the state, it does not lead to generation
  • FIG. 5 is an explanatory diagram showing another configuration example of the switching device 100. As shown in FIG. 5, the switching device 100 includes a circuit 110 and a relay RY1.
  • FIG. 5 is different from the switching device 100 of FIG. 2 in that a relay RY1 having three contacts 1a, 1b, and 2a is provided.
  • the switching device 100 shown in FIG. 5 is the same as the switching device 100 in FIG. 3 in that it has three contacts 1a, 1b, and 2a.
  • the contact 1b In a state where no current flows through the relay RY1, the contact 1b is connected and the contacts 1a and 2a are separated from each other.
  • current In order to supply DC power from the DC power supply device 10, current is supplied to the relay RY1.
  • the contact 2a When flowing, the contact 2a is first connected by the electromagnetic force generated by the relay RY1, then the contact 1b is separated, and finally the contact 1a is connected.
  • FIG. 6 is an explanatory diagram showing another configuration example of the switching device 100. As shown in FIG. 6, the switching device 100 includes a circuit 110 and a switch SW2.
  • the switching device 100 shown in FIG. 6 is different from the switching device 100 shown in FIG. 3 in that a Zener diode Dz1 is provided in parallel with the resistor R1 in the circuit 110, and a resistor R2 is provided instead of the capacitor C1. Is different.
  • the operation of the switching device 100 shown in FIG. 6 will be described.
  • the switch SW2 When the switch SW2 is pushed in and the contact 2a is connected, and then the contact 1b is separated, the MOSFET T1 is turned on by the gate voltage determined by the voltage division by the resistors R1 and R2 and the Zener diode Dz1.
  • the switch SW2 When the switch SW2 is further pushed in and the contact point 1a is connected, the MOSFET T1 is short-circuited.
  • the contact point 1b is connected first after the contact point 1a is separated.
  • the contact 1b is connected, the source terminal and the gate terminal of the MOSFET T1 are short-circuited, and the MOSFET T1 is turned off. That is, the circuit 110 is turned off regardless of the integration time of the circuit 110.
  • the switching device 100 can not only switch between supply and interruption of DC power flowing in one direction but also switch between supply and interruption of DC power flowing in both directions.
  • FIG. 7 is an explanatory diagram showing another configuration example of the switching device 100. As shown in FIG. 7, the switching device 100 includes circuits 110a and 100b and a switch SW2.
  • the circuit 110a includes a MOSFET T1, a capacitor C1, a resistor R1, and a diode D1.
  • the circuit 110a functions as a voltage integration circuit.
  • the circuit 110a includes a MOSFET T2, a capacitor C2, a resistor R2, and a diode D2.
  • the circuit 110b also functions as a voltage integration circuit.
  • the dielectric strength of the switching device 100 shown in FIG. 7 is the dielectric strength due to the series connection of the capacitors C1 and C2. Accordingly, in the switching device 100 shown in FIG. 7, it is possible to select capacitors C1 and C2 that are higher than the withstand voltages of the MOSFETs T1 and T2.
  • the switching device 100 shown in FIG. 7 utilizes the fact that when the drains and sources of the MOSFETs T1 and T2 are reverse-biased, the internal diode is turned on and the other MOSFET can cut off the current. Yes.
  • the switching device 100 Since the switching device 100 is configured as shown in FIG. 7, it is possible to prevent the occurrence of an arc when the DC power is cut off regardless of whether the DC power source is connected to either the terminal IN / OUT1 or the terminal IN / OUT2. Is possible. Therefore, by configuring the switching device 100 as shown in FIG. 7, it is possible to flexibly construct a power supply system.
  • FIG. 8 is an explanatory diagram showing another configuration example of the switching device 100. As shown in FIG. 8, the switching device 100 includes circuits 110a and 100b and a switch SW3.
  • the switching device 100 shown in FIG. 8 includes the switch SW3 having five contacts, contact points 1a-1, 1a-2, 1b-1, 1b-2, and 2a. It is different from the configuration.
  • the switch SW3 is connected to the contacts 1b-1, 1b-2 in a state in which no direct current flows, and the contacts 1a-1, 1a-2, 2a are separated from each other. Since 1b-2 is connected, the MOSFETs T1 and T2 of the circuits 110a and 100b are both short-circuited between the source and the gate.
  • the switching device 100 is configured as shown in FIG. 8 to prevent the occurrence of an arc when the DC power is cut off regardless of whether the DC power source is connected to either the terminal IN / OUT1 or the terminal IN / OUT2. Is possible. Therefore, by configuring the switching device 100 as shown in FIG. 8, it is possible to flexibly construct a power supply system.
  • FIG. 9 is an explanatory diagram showing an example of a side surface of the switch SW3.
  • FIG. 10 is an explanatory diagram showing an example of a cross section of the switch SW3.
  • the switch SW3 is a slide type switch.
  • the switch SW3 when the switch SW3 is pushed (operated in the direction of the downward arrow in FIG. 10), the contact 2a is first connected, and then the contacts 1b-1, 1b- are separated. Finally, the contacts 1a-1 and 1a-2 are operated to be connected.
  • the switch SW3 is pulled up (operated in the direction opposite to the downward arrow in FIG. 10)
  • the contacts 1a-1 and 1a-2 are first separated, and then the contacts 1b-1 and 1b- are connected. Finally, the contact 2a operates so as to be separated.
  • FIG. 11 is an explanatory diagram illustrating a functional configuration example of the moving object 200 including the switching device 100.
  • the moving body 200 may be, for example, a moving body that uses gasoline as a power source, such as a gasoline car, and uses a chargeable / dischargeable battery as a main power source, such as an electric vehicle, a hybrid vehicle, and an electric motorcycle. It may be a body.
  • FIG. 11 shows an example in which the moving body 200 includes a battery 210 and a drive unit 220 that is driven by electric power supplied from the battery.
  • the drive unit 220 may include, for example, equipment included in a vehicle such as a wiper, a power window, a light, a car navigation system, and an air conditioner, and a device that drives the moving body 200 such as a motor.
  • the switching device 100 is provided in the middle of a path through which DC power is supplied from the battery 210 to the drive unit 220.
  • the moving body 200 shown in FIG. 11 is provided with the switching device 100 on a path through which DC power is supplied from the battery 210 to the drive unit 220, so that, for example, when the battery 210 is temporarily attached or detached, arc discharge is generated. It can be suppressed.
  • FIG. 11 shows an example of the moving body 200 provided with only one switching device 100, but the present disclosure is not limited to such an example. That is, a plurality of switching devices 100 may be provided in the middle of a path through which DC power is supplied. In addition, the switching device 100 may be provided not only in the middle of the path through which the DC power is supplied from the battery 210 to the driving unit 220 but also in other places, for example, in the middle of the path when charging the battery 210 with the DC power. .
  • the moving body 200 can safely charge the battery 210 with DC power by providing the switching device 100 in the middle of the path when charging the battery 210 with DC power.
  • a circuit that operates in a direction that reduces the current when the DC power is interrupted and a switch that includes a plurality of contacts that operate in conjunction with the circuit, A switching device 100 is provided that sometimes prevents arcing.
  • the power supplied from the power source may be AC power.
  • a first switch for switching connection and disconnection of the first current path from the power source to the load;
  • a second switch that is provided in parallel with the first switch and switches connection and disconnection of a second current path from the power source to the load;
  • the second switch is provided between the power source and the first switch and the second switch.
  • the second current path is interrupted by the second switch.
  • the switching device according to (4), wherein the first switch, the second switch, and the third switch operate in conjunction with a push button.
  • the switching device according to (4), wherein the first switch, the second switch, and the third switch operate in conjunction with a slide-type switch.
  • the switching device according to (4), wherein the first switch, the second switch, and the third switch operate in conjunction with a relay.
  • the circuit gradually decreases the potential difference between the first switch and the second switch, thereby reducing the potential difference between the poles of the device that receives power from the power source, and the current flowing to the second switch.
  • a moving body comprising the switching device according to any one of (1) to (10) above.
  • a battery for supplying DC power A drive unit driven by DC power supplied from the battery; At least one switching device according to any one of (1) to (10) provided between the battery and the drive unit;
  • a power supply system comprising:

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Relay Circuits (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Keying Circuit Devices (AREA)

Abstract

Le problème décrit par la présente invention est de pourvoir à un dispositif de commutation pouvant supprimer la survenue d'un arc électrique au moment d'une coupure du courant, sans réduire l'efficacité d'alimentation pendant l'alimentation en courant, au moyen d'une configuration à petite échelle. La solution de l'invention porte sur un dispositif de commutation comprenant : un premier interrupteur commutant entre connexion et coupure d'un premier chemin de courant d'une source d'alimentation à une charge ; un second interrupteur disposé parallèle au premier interrupteur, et commutant entre connexion et coupure d'un second chemin de courant de la source d'alimentation à la charge ; la source d'alimentation ; et un circuit disposé entre le premier interrupteur et le second interrupteur, destiné à réduire le courant circulant vers le second interrupteur jusqu'à ce que le second chemin de courant soit mis dans l'état coupé par le second interrupteur lorsque le courant provenant de la source d'alimentation doit être coupé. Lorsque le courant provenant de la source d'alimentation doit être fourni, la connexion du second interrupteur puis du premier interrupteur est effectuée dans cet ordre. Lorsque le courant provenant de la source d'alimentation doit être coupé, la coupure du premier interrupteur puis du second interrupteur est effectuée dans cet ordre.
PCT/JP2017/015546 2016-05-19 2017-04-18 Dispositif de commutation, corps mobile et système d'alimentation électrique WO2017199665A1 (fr)

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Application Number Priority Date Filing Date Title
JP2018518167A JPWO2017199665A1 (ja) 2016-05-19 2017-04-18 スイッチング装置、移動体及び電力供給システム

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JP2016100130 2016-05-19
JP2016-100130 2016-05-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7143984B2 (ja) 2019-08-13 2022-09-29 隆一 嶋田 直流電流開閉装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027363U (fr) * 1973-07-02 1975-03-29
JPS58188922U (ja) * 1982-06-11 1983-12-15 松下電器産業株式会社 開閉器
JPS6028434U (ja) * 1983-07-29 1985-02-26 株式会社東海理化電機製作所 車両用電源回路
US4855612A (en) * 1983-11-28 1989-08-08 Omron Tateisi Electronics Co. Switching current and a relay device employed therein
JP2015118868A (ja) * 2013-12-19 2015-06-25 河村電器産業株式会社 直流開閉器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027363U (fr) * 1973-07-02 1975-03-29
JPS58188922U (ja) * 1982-06-11 1983-12-15 松下電器産業株式会社 開閉器
JPS6028434U (ja) * 1983-07-29 1985-02-26 株式会社東海理化電機製作所 車両用電源回路
US4855612A (en) * 1983-11-28 1989-08-08 Omron Tateisi Electronics Co. Switching current and a relay device employed therein
JP2015118868A (ja) * 2013-12-19 2015-06-25 河村電器産業株式会社 直流開閉器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7143984B2 (ja) 2019-08-13 2022-09-29 隆一 嶋田 直流電流開閉装置

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