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CN-122008921-A - Charging pile

CN122008921ACN 122008921 ACN122008921 ACN 122008921ACN-122008921-A

Abstract

The embodiment of the application provides a charging pile which comprises a charging gun, a heat exchanger, a box body and a dehydrogenation component. The charging gun comprises a wire and a liquid cooling channel, and the wire is immersed in cooling liquid in the liquid cooling channel. The heat exchange channel of the heat exchanger is used for cooling the cooling liquid output from the liquid cooling channel and conveying the cooled cooling liquid to the liquid cooling channel. The liquid outlet of the liquid cooling channel is connected with the liquid inlet of the heat exchange channel through the box body, or the liquid outlet of the heat exchange channel is connected with the liquid inlet of the liquid cooling channel through the box body. The dehydrogenation component is fixed in the box body and is used for catalyzing hydrogen in the box body to generate water molecules. Thus, the heat dissipation efficiency of the lead wire can be improved, and meanwhile, hydrogen generated by electrolysis of the cooling liquid in the working process of the charging gun can be removed. Furthermore, the heat dissipation requirement of the charging gun during high-power charging can be met, and the operation reliability of the charging pile can be improved.

Inventors

  • SONG JINLIANG

Assignees

  • 华为数字能源技术有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (10)

  1. 1. A charging pile is characterized by comprising a charging gun, a heat exchanger, a box body and a dehydrogenation component, wherein the charging gun comprises a wire and a liquid cooling channel, the wire is immersed in cooling liquid of the liquid cooling channel and used for outputting electric energy to an electric vehicle, the cooling liquid of the liquid cooling channel is used for exchanging heat with the wire, the heat exchange channel of the heat exchanger is used for cooling the cooling liquid output from the liquid cooling channel and conveying the cooled cooling liquid to the liquid cooling channel, The liquid outlet of the liquid cooling channel is connected with the liquid inlet of the heat exchange channel through the box body, or the liquid outlet of the heat exchange channel is connected with the liquid inlet of the liquid cooling channel through the box body; the dehydrogenation component is fixed in the box body and is used for catalyzing hydrogen in the box body to generate water molecules.
  2. 2. The charging stake of claim 1, wherein the box includes two side panels arranged in opposition, one of the side panels including a through hole extending through the one side panel in a direction in which the two side panels are arranged; The hydrogen removing component comprises an anode gas diffusion layer, an anode catalyst layer, a cathode gas diffusion layer, a cathode catalyst layer and a proton exchange membrane, and is fixed in the through hole, and is directed to the direction of one side plate along the other side plate, and the anode gas diffusion layer, the anode catalyst layer, the proton exchange membrane, the cathode catalyst layer and the cathode gas diffusion layer are sequentially arranged; The anode catalyst layer and the cathode catalyst layer are used for catalyzing the reaction of hydrogen inside the box body and oxygen outside the box body to generate water molecules under the condition that the dehydrogenation component is electrified.
  3. 3. The charging pile according to claim 2, wherein the surface of the cathode catalyst layer facing the cathode gas diffusion layer is exposed to the through-holes in the direction in which the two side plates are aligned.
  4. 4. The charging stake of claim 1, wherein the box includes two side panels arranged in opposition; the hydrogen removing assembly comprises a gas diffusion layer, a catalyst layer and a substrate layer, wherein the hydrogen removing assembly is fixed on the surface of one side plate and points to the direction of the one side plate along the other side plate, and the gas diffusion layer, the catalyst layer, the substrate layer and the one side plate are sequentially arranged; the catalyst layer is used for catalyzing the reaction of hydrogen in the box body and oxygen in the box body and generating water molecules.
  5. 5. The charging stake of claim 1, wherein the box includes two side panels arranged in opposition, one of the side panels including a through hole extending through the one side panel in a direction in which the two side panels are arranged; the hydrogen removing assembly comprises a gas diffusion layer, a catalyst layer and a matrix layer, the hydrogen removing assembly is fixed in the through hole, and the gas diffusion layer, the catalyst layer and the matrix layer are sequentially arranged along the direction that the other side plate points to the side plate; the catalyst layer is used for catalyzing the reaction of hydrogen in the box body and oxygen in the box body and generating water molecules.
  6. 6. The charging stake of claim 5, wherein the surface of the catalyst layer facing the base layer is exposed to the through holes in the direction in which the two side plates are aligned.
  7. 7. The charging pile according to any one of claims 2 to 6, wherein the tank comprises a tank liquid inlet and a tank liquid outlet; In the case that the liquid outlet of the liquid cooling channel is connected with the liquid inlet of the heat exchange channel through the box body, the liquid inlet of the box body is connected with the liquid outlet of the liquid cooling channel, and the liquid outlet of the box body is connected with the liquid inlet of the heat exchange channel, or Under the condition that the liquid outlet of the heat exchange channel is connected with the liquid inlet of the liquid cooling channel through the box body, the liquid inlet of the box body is connected with the liquid outlet of the heat exchange channel, the liquid outlet of the box body is connected with the liquid inlet of the liquid cooling channel, The box liquid inlet is located another curb plate, the box liquid outlet is located one curb plate, and follows the direction of height of box the dehydrogenation subassembly is located the top of box liquid outlet, the direction of height of box with the direction that two curb plates were arranged is perpendicular.
  8. 8. The charging stake of claim 7, wherein the housing further includes a top plate located above the hydrogen removal assembly along a height of the housing; The top plate comprises a liquid supplementing port, and the box body is used for receiving cooling liquid from the outside through the liquid supplementing port and outputting the cooling liquid through a liquid outlet of the box body.
  9. 9. The charging pile according to any one of claims 1 to 8, further comprising a deionizer connected in parallel with the tank; the liquid outlet of the liquid cooling channel is connected with the liquid inlet of the heat exchange channel through the deionization device and the box body which are connected in parallel, or the liquid outlet of the heat exchange channel is connected with the liquid inlet of the liquid cooling channel through the deionization device and the box body which are connected in parallel.
  10. 10. The charging stake of claim 9, further comprising a water pump, wherein the parallel deionizers and the tanks are connected to the inlet of the heat exchange channel by the water pump, or wherein the parallel deionizers and tanks are connected to the inlet of the liquid cooling channel by the water pump.

Description

Charging pile Technical Field The present application relates to the field of charging, and more particularly, to a charging pile. Background Currently, charging piles deliver charging power to an electric vehicle through a charging gun. With the continuous improvement of the charging power, the heat generated by the charging gun cable is also greatly increased. If the heat cannot be discharged in time, the normal operation of the charging gun for conveying high power is easily affected, so that the safety of the charging gun for charging the electric vehicle is reduced. Disclosure of Invention The application provides a charging pile which can not only enable a wire in a charging gun to be in direct contact with cooling liquid so as to improve the heat dissipation efficiency of the wire, but also remove hydrogen generated by electrolysis of the cooling liquid in the working process of the charging gun. Furthermore, the heat dissipation requirement of the charging gun during high-power charging can be met, and the operation reliability of the charging pile can be improved. In a first aspect, a charging stake is provided that includes a charging gun, a heat exchanger, a tank, and a dehydrogenation assembly. The charging gun comprises a wire and a liquid cooling channel, wherein the wire is immersed in cooling liquid of the liquid cooling channel, the wire is used for outputting electric energy to an electric vehicle, and the cooling liquid of the liquid cooling channel is used for exchanging heat with the wire. The heat exchange channel of the heat exchanger is used for cooling the cooling liquid output from the liquid cooling channel and conveying the cooled cooling liquid to the liquid cooling channel. The liquid outlet of the liquid cooling channel is connected with the liquid inlet of the heat exchange channel through the box body, or the liquid outlet of the heat exchange channel is connected with the liquid inlet of the liquid cooling channel through the box body. The dehydrogenation component is fixed on the box body and is used for catalyzing hydrogen in the box body to generate water molecules. Based on the design, the cooling liquid can circulate among the liquid cooling channel of the charging gun, the box body and the heat exchange channel of the heat exchanger so as to conduct liquid cooling heat dissipation on the lead wire of the charging gun. And moreover, the cooling liquid in the liquid cooling channel can be in direct contact with the wire, so that the speed of heat transfer from the wire to the cooling liquid can be increased, and the heat dissipation efficiency of the wire is improved. In addition, when the cooling liquid flows into the chamber of the box body, the hydrogen removing component fixed on the box body can catalyze hydrogen in the cooling liquid to generate water molecules so as to remove the hydrogen generated by electrolysis of the cooling liquid in the working process of the charging gun, thereby reducing the hydrogen content in the cooling liquid. Furthermore, the heat dissipation requirement of the charging gun during high-power charging can be met, and the operation reliability of the charging pile can be improved. In one embodiment, the case includes two side plates arranged opposite to each other, and one side plate includes a through hole penetrating the other side plate along a direction in which the two side plates are arranged. The dehydrogenation component comprises an anode gas diffusion layer, an anode catalyst layer, a cathode gas diffusion layer, a cathode catalyst layer and a proton exchange membrane, is fixed in the through hole, and is arranged along the direction that the other side plate points to one side plate in sequence. The anode catalyst layer and the cathode catalyst layer are used for catalyzing the reaction of hydrogen inside the box body and oxygen outside the box body to generate water molecules under the condition that the dehydrogenation component is electrified. Based on the above design, the anode gas diffusion layer may be in contact with the air inside the case, while the cathode gas diffusion layer may be in contact with the air outside the case. Thus, when the cooling liquid flows into the box body, the charging pile can supply power to the dehydrogenation component under the condition that the hydrogen content in the cooling liquid is high. Thus, the hydrogen in the coolant may first move to the anode catalyst layer through the anode gas diffusion layer, while the oxygen outside the case may move to the cathode catalyst layer through the cathode gas diffusion layer. Then, hydrogen can be electrolyzed under the action of the anode catalyst layer to generate hydrogen ions, and the generated hydrogen ions move to the cathode catalyst layer through the proton exchange membrane and react with oxygen outside the box body to generate water molecules under the action of the cathode catalyst layer. That is, the dehydrogenation component adopts