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CN-116587912-B - Charging device

CN116587912BCN 116587912 BCN116587912 BCN 116587912BCN-116587912-B

Abstract

The application provides a charging device, which comprises a charging module and a second control unit. The charging module comprises a switching device, an auxiliary power supply, a first control unit and a rectifying circuit. The auxiliary power supply supplies power to the first control unit, and the first control unit is used for controlling the rectifying circuit. The first end of the switching device is connected with the output end of the rectifying circuit or the alternating current power supply, and the second end of the switching device is connected with the input end of the auxiliary power supply. The second control unit is used for controlling the on and off of the switching device. The auxiliary power supply supplies power to the first control unit in response to the switching device being turned on, and stops supplying power to the first control unit in response to the switching device being turned off.

Inventors

  • LIU LIN

Assignees

  • 华为数字能源技术有限公司

Dates

Publication Date
20260512
Application Date
20230517

Claims (10)

  1. 1. A charging device, characterized in that the charging device comprises a charging module and a second control unit, wherein the charging module comprises a switching device, an auxiliary power supply, a first control unit and a rectifying circuit; the output end of the auxiliary power supply is connected with the first control unit, and the output end of the first control unit is connected with the rectifying circuit; the auxiliary power supply is used for supplying power to the first control unit, the first control unit is used for controlling the rectifying circuit, and the rectifying circuit is used for converting alternating current input by the alternating current power supply into direct current; the first end of the switching device is used for being connected with the output end of the rectifying circuit or the output end of the alternating current power supply, and the second end of the switching device is used for being connected with the input end of the auxiliary power supply; the second control unit is used for controlling the on and off of the switching device; The auxiliary power supply supplies power to the first control unit in response to the switching device being turned on; In response to the switching device opening, the auxiliary power supply stops supplying power to the first control unit.
  2. 2. The charging apparatus according to claim 1, wherein the rectifying circuit or the output terminal of the alternating current power supply includes a first output terminal and a second output terminal, the input terminal of the auxiliary power supply includes a first input terminal and a second input terminal, and the switching device includes a first switching device; The first end of the first switching device is used for being connected with the rectifying circuit or the first output end of the alternating current power supply, and the second end of the first switching device is used for being connected with the first input end of the auxiliary power supply.
  3. 3. The charging apparatus of claim 2, wherein the switching device comprises a second switching device, The first end of the second switching device is used for being connected with the second output end of the rectifying circuit or the alternating current power supply, and the second end of the second switching device is used for being connected with the second input end of the auxiliary power supply.
  4. 4. A charging apparatus according to claim 3, wherein the output of the ac power source comprises a third output, the input of the auxiliary power source comprises a third input, and the switching device comprises a third switching device; The first end of the third switching device is used for being connected with a third output end of the alternating current power supply, and the second end of the third switching device is used for being connected with a third input end of the auxiliary power supply.
  5. 5. A charging device according to any one of claims 1-4, characterized in that the charging device comprises a direct current converting DC/DC circuit, the input of which is arranged to be connected to the output of the rectifying circuit.
  6. 6. The charging device of claim 5, comprising a charging interface having an input for connecting to an output of the DC/DC circuit, the output of the charging interface for connecting to a device to be charged.
  7. 7. A charging device, characterized in that the charging device comprises a charging module and a second control unit, the charging module comprises a switching device, an auxiliary power supply, a first control unit and a DC/DC circuit; The output end of the auxiliary power supply is connected with the first control unit, and the output end of the first control unit is connected with the DC/DC circuit; The first end of the switching device is used for being connected with the input end of the DC/DC circuit, and the second end of the switching device is used for being connected with the input end of the auxiliary power supply; The charging equipment comprises a second control unit, wherein the second control unit is used for controlling the on and off of the switching device; The auxiliary power supply supplies power to the first control unit in response to the switching device being turned on; In response to the switching device opening, the auxiliary power supply stops supplying power to the first control unit.
  8. 8. The charging device of claim 7, wherein the input of the DC/DC circuit comprises a first input and a second input, the input of the auxiliary power source comprises a first input and a second input, and the switching device comprises a first switching device; the first end of the first switching device is used for being connected with the first input end of the DC/DC circuit, and the second end of the first switching device is used for being connected with the first input end of the auxiliary power supply.
  9. 9. The charging apparatus of claim 8, wherein the switching device comprises a second switching device, The first end of the second switching device is used for being connected with the second input end of the DC/DC circuit, and the second end of the second switching device is used for being connected with the second input end of the auxiliary power supply.
  10. 10. The charging device according to claim 9, characterized in that the charging device comprises a charging interface, an input of which is for connection to an output of the DC/DC circuit, and an output of which is for connection to a device to be charged.

Description

Charging device Technical Field The application relates to the field of new energy, in particular to charging equipment. Background With the vigorous development of the electric automobile industry, the number of electric automobiles is increasing. At present, electric vehicles are generally charged through charging piles, and the number of the charging piles needs to be increased to adapt to the charging requirement of the electric vehicles. When the charging pile is not connected with the electric automobile for charging, the charging pile is required to be in a more energy-saving standby state. The standby power of the existing charging pile is relatively high, generally between tens and hundreds of watts, and the electric energy cost consumed in standby is high. Therefore, it is necessary to reduce standby power consumption of the charging pile to save costs. Disclosure of Invention The application provides a charging device which can greatly reduce standby power consumption of a charging module and reduce energy waste of the charging module in a standby state. In a first aspect, the present application provides a charging device including a charging module and a second control unit. The charging module comprises a switching device, an auxiliary power supply, a first control unit and a rectifying circuit. The auxiliary power supply is used for converting electric energy input by the input end of the auxiliary power supply so as to supply power for the first control unit. The first control unit is used for controlling the rectifying circuit, and the rectifying circuit is used for converting alternating current input by an alternating current power supply into direct current. The first end of the switching device is used for being connected with the output end of the rectifying circuit or the alternating current power supply, and the second end of the switching device is used for being connected with the input end of the auxiliary power supply. The second control unit is used for controlling the on and off of the switching device. The auxiliary power supply supplies power to the first control unit in response to the switching device being turned on, and stops supplying power to the first control unit in response to the switching device being turned off. In the scheme, the second control unit in the charging equipment is used for controlling the on-off of the switching device in the charging module, and under the condition that the second control unit controls the switching device to be on, the auxiliary power supply supplies power to the first control unit, the first control unit controls the rectifying circuit to work, and the charging module enters a working state. After the charging module enters a standby state, the rectifying circuit stops working and does not consume electric energy any more, the second control unit controls the switching device to be turned off, the auxiliary power supply stops supplying power to the first control unit, and the first control unit does not consume electric energy any more, so that the standby power consumption of the charging module is greatly reduced, and the energy waste of the charging module in the standby state is reduced. In a possible implementation, the rectifying circuit or the output of the ac power supply includes a first output terminal and a second output terminal, the input terminal of the auxiliary power supply includes a first input terminal and a second input terminal, and the switching device includes a first switching device. The first end of the first switching device is used for being connected with the first output end of the rectifying circuit or the alternating current power supply, and the second end of the first switching device is used for being connected with the first input end of the auxiliary power supply. In a possible implementation, the switching device further comprises a second switching device, a first terminal of the second switching device being adapted to be connected to a second output terminal of the rectifying circuit or the ac power supply, and a second terminal of the first switching device being adapted to be connected to a second input terminal of the auxiliary power supply. In this scheme, switching device has all been connected to auxiliary power supply's two input, and these two switching device all receive the control of second control unit. In the case where any one of the two switching devices is turned off, the auxiliary power supply stops supplying power to the first control unit. In a possible implementation, the output of the ac power supply includes a third output, the input of the auxiliary power supply includes a third input, and the switching device includes a third switching device. The first end of the third switching device is used for being connected with a third output end of the alternating current power supply, and the second end of the third switching device is used for being connected with a third