CN201497781U - Resistance type power adapter aging device - Google Patents

Abstract

The utility model relates to the technical field of aging devices, in particular to a resistor-type power adapter aging device, which comprises a shell, wherein a primary voltage input end, a primary socket, a secondary alternating current socket, a secondary direct current socket and a load resistor are arranged on the shell, the primary voltage input end is electrically connected with the primary socket through a wire, the secondary alternating current socket is electrically connected with two ends of the load resistor through wires, and the secondary direct current socket is electrically connected with two ends of the load resistor through wires; the utility model discloses to exchanging output power adapter and DC output power adapter all can be ageing, it is very convenient to operate, but reduction in production cost.

Description

Resistive Power Adapter Aging Device

Technical field:

The utility model relates to the technical field of aging devices, in particular to an aging device for a resistive power supply adapter.

Background technique:

General electronic products, such as power adapters, in order to ensure their quality and normal operation, need to undergo aging (also known as burn-in) test before leaving the factory. Observe whether the power adapter is working properly.

Most of the existing power adapter aging devices are resistive power adapter aging devices. According to the output characteristics of the power adapter, it is equipped with a suitable resistive load (such as cement resistance) to age the power adapter. However, the current resistive power supply The adapter aging device is only equipped with an AC output power adapter aging circuit or a DC output power adapter aging circuit. The AC output power adapter and the DC output power adapter require different resistive power adapter aging devices for aging. The AC output power adapter and the DC output All power adapters need to be equipped with a special aging device, which has high production costs and is extremely inconvenient to operate.

Utility model content:

The purpose of the utility model is to provide a resistive power adapter aging device which can age both the AC output power adapter and the DC output power adapter in view of the deficiencies in the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is:

It includes a housing, on which are provided a primary voltage input terminal for inputting the primary voltage of the power adapter, a primary socket, a secondary AC socket, a secondary DC socket, and a load resistor, and the primary voltage input terminal is connected to the primary socket through a wire. connection, the secondary AC socket is electrically connected to both ends of the load resistor through wires, and the secondary DC socket is electrically connected to both ends of the load resistor through wires.

The load resistance is an adjustable resistance, and the shell is provided with a load current adjustment knob for adjusting the load resistance.

The housing is provided with a power plug, an AC ammeter and a DC ammeter for displaying the load current of the power adapter, and a power circuit board is provided in the housing for providing working power for the AC ammeter and the DC ammeter, and the input terminal of the power circuit board is connected to the The power plug is electrically connected, and the output terminal of the power circuit board is electrically connected with the power input terminals of the AC ammeter and the DC ammeter; wherein, the AC ammeter is connected between the secondary AC socket and the load resistor, and the DC ammeter is connected between the secondary DC socket and the load between the resistors.

The power supply circuit board is provided with a power conversion circuit, and the power conversion circuit is composed of a transformer T1, a bridge rectifier BRD1, a filter capacitor C, and a voltage stabilizing chip U1. The input terminal of the transformer T1 is electrically connected to the power plug, and the output terminal of the transformer T1 It is connected to the input terminal of the bridge rectifier BRD1, the positive output terminal of the bridge rectifier BRD1 is connected to the positive terminal of the filter capacitor C, the negative output terminal of the bridge rectifier BRD1 is connected to the negative terminal of the filter capacitor C, and the input terminal of the voltage regulator chip U1 is connected to the negative terminal of the filter capacitor C. The positive output terminal of the bridge rectifier BRD1 is connected, the ground terminal of the voltage stabilizing chip U1 is connected to the negative output terminal of the bridge rectifier BRD1, the output terminal of the voltage stabilizing chip U1 is electrically connected to the positive power supply input terminals of the AC ammeter and the DC ammeter, and the bridge The negative output terminal of the formula rectifier BRD1 is electrically connected to the negative power supply input terminals of the AC ammeter and the DC ammeter.

The voltage stabilizing chip U1 is a three-terminal voltage stabilizing tube 7805 .

The housing is provided with a safety tube.

The beneficial effects of the utility model are:

The resistive power adapter aging device provided by the utility model includes a housing, and the housing is provided with a primary voltage input terminal for inputting the primary voltage of the power adapter, a primary socket, a secondary AC socket, a secondary DC socket, and a load resistor. The primary voltage input terminal is electrically connected to the primary socket through a wire, the secondary AC socket is electrically connected to both ends of the load resistor through a wire, and the secondary DC socket is electrically connected to both ends of the load resistor through a wire; when the aging AC output power adapter is required , as long as the primary plug of the AC output power adapter is inserted into the primary socket of the utility model, and the secondary plug is inserted into the secondary AC socket of the utility model, so that the load resistance is electrically connected with the secondary plug of the AC output power adapter, and then the The primary voltage input terminal of the utility model is connected to the input voltage matching the AC output power adapter, that is, the AC output power adapter can be aged; when the DC output power adapter needs to be aged, just insert the primary plug of the DC output power adapter into this utility model In the primary socket of the utility model, the secondary plug is inserted into the secondary DC socket of the utility model, so that the load resistance is electrically connected with the secondary plug of the DC output power adapter, and then the primary voltage input terminal of the utility model is connected to the DC The output power adapter matches the input voltage, that is, the DC output power adapter can be aged; therefore, the utility model can age the AC output power adapter and the DC output power adapter, the operation is very convenient, and the production cost can be reduced.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a circuit schematic diagram of the power conversion circuit of the utility model.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further described, please refer to Fig. 1, 2, the utility model comprises housing 1, and described housing 1 is provided with the primary voltage input terminal 2 that is used to input the primary voltage of power adapter, primary socket 3. The secondary AC socket 4, the secondary DC socket 5, and the load resistor 6, wherein the primary voltage input terminal 2 can be a plug or the like, which is used to connect the input voltage matching the power adapter, such as AC 220V; the primary voltage input terminal 2 is electrically connected to the primary socket 3 through wires, the secondary AC socket 4 is electrically connected to both ends of the load resistor 6 through wires, and the secondary DC socket 5 is electrically connected to both ends of the load resistor 6 through wires.

The load resistance 6 of this embodiment is an adjustable resistance, and the shell 1 is provided with a load current adjustment knob 7 for adjusting the load resistance 6. When power adapters of different specifications need to be aged, the load resistance can be adjusted through the load current adjustment knob 7. 6, so as to adjust the load current when the power adapter is aging, so that the load current is the rated current of the power adapter, and avoid the load current being too high or too low.

The housing 1 of this embodiment is provided with a power plug 8, an AC ammeter 9 and a DC ammeter 10 for displaying the load current of the power adapter, and the housing 1 is provided with a power supply for providing working power for the AC ammeter 9 and the DC ammeter 10 Circuit board 11, the input end of power supply circuit board 11 is electrically connected with power plug 8, the output end of power supply circuit board 11 is electrically connected with the power supply input end of AC ammeter 9 and DC ammeter 10; Wherein, AC ammeter 9 is connected in secondary AC Between the socket 4 and the load resistor 6, it is used to display the load current of the aging AC output power adapter, and the DC ammeter 10 is connected between the secondary DC socket 5 and the load resistor 6, and is used to display the load of the aging DC output power adapter In this way, when the AC output power adapter or the DC output power adapter is aging, it can be visually observed through the AC ammeter 9 or the DC ammeter 10 whether the load current adjusted by the load current adjustment knob 7 is accurate.

The power supply circuit board 11 of the present embodiment is provided with a power conversion circuit 13, and the power conversion circuit 13 is used to convert the input 220V alternating current into a 5V direct current, and provides operating power for the alternating current meter 9 and the direct current meter 10; wherein, the power conversion circuit 13 is composed of transformer T1, bridge rectifier BRD1, filter capacitor C, and voltage regulator chip U1. The input end of transformer T1 is electrically connected to power plug 8, and the output end of transformer T1 is connected to the input end of bridge rectifier BRD1. Bridge rectifier The positive output terminal of BRD1 is connected to the positive terminal of the filter capacitor C, the negative output terminal of the bridge rectifier BRD1 is connected to the negative terminal of the filter capacitor C, the input terminal of the voltage regulator chip U1 is connected to the positive output terminal of the bridge rectifier BRD1, and the voltage regulator chip The ground terminal of U1 is connected to the negative output terminal of the bridge rectifier BRD1, the output terminal of the voltage regulator chip U1 is electrically connected to the positive power supply input terminals of the AC ammeter 9 and the DC ammeter 10, and the negative output terminal of the bridge rectifier BRD1 is connected to the AC ammeter 9 It is electrically connected to the negative power supply input terminal of the DC ammeter 10; the voltage regulator chip U1 is a three-terminal voltage regulator tube 7805; the housing 1 is provided with a fuse 12, and the fuse 12 is connected in series to the live wire input of the power plug 8 end.

When the utility model is in use, when the AC output power adapter needs to be aged, at first the power plug 8 will be inserted into the 220V AC socket, and then the primary plug of the AC output power adapter (i.e. the power input plug of the AC output power adapter) Insert in primary socket 3 of the present utility model, secondary plug (being the power output plug of AC output power adapter) is inserted in secondary AC socket 4 of the present utility model, make AC output power adapter, load resistance 6 and AC ammeter 9 form A series circuit, at this time, the primary voltage input terminal 2 of the present invention is connected to the input voltage matching the AC output power adapter, and then the load current is adjusted through the load current adjustment knob 7 to be the rated load current of the AC output power adapter, That is, the AC output power adapter can be aged.

When needing aging DC output power adapter, at first power plug 8 will be inserted in the alternating current socket of 220V, then, the primary plug of DC output power adapter (being the power input plug of DC output power adapter) is inserted into primary socket of the present utility model 3. The secondary plug (that is, the power output plug of the DC output power adapter) is inserted into the secondary DC socket 5 of the present utility model, so that the DC output power adapter, the load resistor 6 and the DC ammeter 10 form a series circuit. At this time , connect the primary voltage input terminal 2 of the utility model to the input voltage that matches the DC output power adapter, and then adjust the load current to the rated load current of the DC output power adapter through the load current adjustment knob 7, that is, the DC output power adapter can be adjusted Aging is performed. It can be seen from the above technical scheme that the utility model can age both the AC output power adapter and the DC output power adapter, and the load current can be adjusted through the load current adjustment knob 7 to meet the aging and operation of power adapters with different rated load currents. It is very convenient and can reduce the production cost.

Of course, the above are only preferred embodiments of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the utility model patent application within range.

Claims (6)

1. A resistive power adapter aging device, which comprises a housing, is characterized in that: the housing is provided with a primary voltage input terminal for inputting the primary voltage of the power adapter, a primary socket, a secondary AC socket, a secondary DC The socket, the load resistor, the primary voltage input terminal is electrically connected to the primary socket through a wire, the secondary AC socket is electrically connected to both ends of the load resistor through a wire, and the secondary DC socket is electrically connected to both ends of the load resistor through a wire. 2. The resistive power adapter aging device according to claim 1, wherein the load resistance is an adjustable resistance, and a load current adjustment knob for adjusting the load resistance is provided on the casing. 3. The resistive power adapter aging device according to claim 2, characterized in that: the housing is provided with a power plug, an AC ammeter and a DC ammeter for displaying the load current of the power adapter, and the housing is provided with a The AC ammeter and the DC ammeter provide the power supply circuit board for working power, the input end of the power circuit board is electrically connected with the power plug, and the output end of the power circuit board is electrically connected with the power input end of the AC ammeter and the DC ammeter; wherein, the AC ammeter is connected to Between the secondary AC socket and the load resistor, a DC ammeter is connected between the secondary DC socket and the load resistor. 4. The resistive power adapter aging device according to claim 3, characterized in that: the power supply circuit board is provided with a power conversion circuit, and the power conversion circuit is composed of a transformer T1, a bridge rectifier BRD1, a filter capacitor C, a voltage regulator Chip U1, the input terminal of transformer T1 is electrically connected to the power plug, the output terminal of transformer T1 is connected to the input terminal of bridge rectifier BRD1, the positive output terminal of bridge rectifier BRD1 is connected to the positive pole of filter capacitor C, bridge rectifier BRD1 The negative output terminal of the voltage regulator chip U1 is connected to the negative pole of the filter capacitor C, the input terminal of the voltage regulator chip U1 is connected to the positive pole output terminal of the bridge rectifier BRD1, the ground terminal of the voltage regulator chip U1 is connected to the negative pole output terminal of the bridge rectifier BRD1, and the voltage regulator The output terminal of the chip U1 is electrically connected to the positive power input terminals of the AC ammeter and the DC ammeter, and the negative output terminal of the bridge rectifier BRD1 is electrically connected to the negative power input terminals of the AC ammeter and the DC ammeter. 5 . The resistive power adapter burn-in device according to claim 4 , wherein the voltage regulator chip U1 is a three-terminal voltage regulator tube 7805 . 6. The aging device for a resistive power adapter according to any one of claims 1 to 5, wherein a safety tube is provided on the housing.

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