Charging gun low-temperature liquid cooling device

Abstract

The utility model discloses a charging gun low-temperature liquid cooling device which is used for being connected with a charging gun cooling pipeline to cool a charging gun and comprises a support, a cooling liquid supply and storage assembly and a cooling mechanism, the cooling liquid supply and storage assembly and the cooling mechanism are arranged on the support, and a first heat exchange assembly is integrated on the cooling liquid supply and storage assembly; the cooling liquid supply and storage assembly is used for providing cooling liquid to cool a charging gun, the cooling mechanism is arranged on one side of the cooling liquid supply and storage assembly, the first heat exchange assembly is connected with the cooling liquid supply and storage assembly and the cooling mechanism, and the first heat exchange assembly and the cooling liquid supply and storage assembly are externally connected with a charging gun cooling pipeline. The first heat exchange assembly is used for receiving cooling liquid for cooling a cooling pipeline of the charging gun, the cooling mechanism cools the cooling liquid flowing through the first heat exchange assembly, the cooling liquid entering the first heat exchange assembly can be converted into low-temperature cooling liquid, the low-temperature cooling liquid can be conveniently supplied to the charging gun subsequently, and therefore the cooling effect on the charging gun is improved; meanwhile, the overall size can be reduced, and the occupied space is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile charging piles, in particular to a low-temperature liquid cooling device for a charging gun. BACKGROUND

[0002] With the development of science and technology and the popularization of new energy vehicles, the charging time of electric vehicles is shortened, and the charging power is continuously improved. When the charging gun cooling pipeline is used for charging the automobile, the heat of the charging gun cooling pipeline is more and more serious, and the heat dissipation demand of the cooling system of the charging pile and the gun wire is higher and higher.

[0003] A charging gun cooling system is disclosed in CN116940065A, which includes a liquid outlet device and a liquid return cooling device. The liquid outlet device includes a liquid storage tank, a pump, a first pipeline and a liquid outlet collector. The liquid return cooling device includes a liquid return collector, a micro-channel radiator, a fan, a drainage pipe, an external filter and a semiconductor refrigeration component. The fan faces the micro-channel radiator. The first end of the drainage pipe is connected to the micro-channel radiator, and the second end of the drainage pipe is connected to the liquid storage tank. The external filter is arranged outside the liquid storage tank and connected to the drainage pipe at both ends. The external filter includes a metal shell and a detachable filter element contained in the metal shell. The semiconductor refrigeration component is connected to the metal shell. The contact area between the semiconductor refrigeration component and the metal shell is limited, and if the heat dissipation is insufficient, the refrigeration efficiency may be reduced or even the refrigeration component may be damaged. As the demand for heat dissipation increases, the radiator and the fan also need to be increased, which directly leads to large space occupation, high noise and poor cooling effect. UTILITY MODEL CONTENT

[0004] The application provides a low-temperature liquid cooling device for a charging gun to solve the problem of poor cooling effect of the cooling liquid in the prior art. The following technical solutions are adopted:

[0005] The low-temperature liquid cooling device for the charging gun is used for connecting the charging gun cooling pipeline to cool the charging gun. The device is characterized in that it comprises a bracket, a cooling liquid supply and storage assembly and a cooling mechanism arranged on the bracket, and a first heat exchange assembly is integrated above the cooling liquid supply and storage assembly.

[0006] The cooling liquid supply and storage assembly is used to provide cooling liquid to the charging gun cooling pipeline to cool the charging gun.

[0007] The first heat exchange assembly cools the cooling liquid after flowing through the charging gun cooling pipeline by the refrigerant contained therein. The cooled cooling liquid flows back to the cooling liquid supply and storage assembly.

[0008] The cooling mechanism is arranged in a direction perpendicular to the direction in which the cooling liquid supply and storage assembly is arranged, and is used to cool the refrigerant in the first heat exchange assembly; the refrigerant is returned to the first heat exchange assembly after being cooled by the cooling mechanism.

[0009] Preferably, the cooling liquid supply and storage assembly comprises a power device and a supply and storage unit, the supply and storage unit is used to store cooling liquid, the power device is arranged at the bottom of the supply and storage unit, and the power device drives the cooling liquid in the supply and storage unit to sequentially flow to the charging gun cooling pipeline, the first heat exchange assembly, and back to the supply and storage unit to form a first cooling loop, thereby cooling the charging gun.

[0010] Preferably, the cooling mechanism comprises a compressor arranged on a support, a second heat exchange assembly is arranged above the compressor, the first heat exchange assembly is connected to the second heat exchange assembly through a throttling component, and the compressor is connected to the second heat exchange assembly, the throttling component, and the first heat exchange assembly in sequence to form a second cooling loop, thereby cooling the refrigerant in the first heat exchange assembly.

[0011] Preferably, the cooling mechanism further comprises a blowing assembly, the blowing assembly is arranged opposite to the second heat exchange assembly, and the blowing assembly is used to cool the second heat exchange assembly.

[0012] Preferably, the setting direction of the compressor is perpendicular to the setting direction of the supply and storage unit, and the setting direction of the second heat exchange assembly is parallel to the setting direction of the compressor; such an arrangement facilitates installation and maintenance.

[0013] Preferably, a cover plate is arranged on the supply and storage unit, a partition plate is arranged on the first heat exchange assembly and connected to the cover plate, and a filling opening and an exhaust opening are arranged on the cover plate.

[0014] Preferably, the application further comprises a detection assembly, and a mounting hole is arranged on the cover plate, and the detection assembly is arranged in the mounting hole.

[0015] Preferably, the application further comprises a control device, and the control device is electrically connected to the detection assembly, the cooling liquid supply and storage assembly, and the cooling mechanism.

[0016] Preferably, the supply and storage unit comprises a supply and storage unit box body, and the power device comprises a fluid supply pump, and the fluid supply pump is integrated in the supply and storage unit box body.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] The charging gun is cooled by the first cooling circuit; the second cooling circuit cools the cooling liquid flowing through the first heat exchange assembly by refrigerating the refrigerant in the first heat exchange assembly; and heat exchange is realized between the first cooling circuit and the second cooling circuit through the first heat exchange assembly.

[0019] The cooling mechanism can circulate and cool the cooling liquid in the cooling liquid supply and storage assembly, can improve the heat dissipation and cooling capacity of the charging gun cooling pipeline, can be dynamically adjusted according to actual cooling requirements, and greatly reduces the occupied space and generated noise compared with the prior art.

[0020] 3) The cooling liquid supply and storage assembly is arranged on the support, the first heat exchange assembly is arranged on the cooling liquid supply and storage assembly, the cooling liquid supply and storage assembly and the first heat exchange assembly are integrally arranged, and the cooling mechanism is arranged vertically to the cooling liquid supply and storage assembly. Such a layout is convenient for installation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0022] Figure 2 is a schematic diagram of the first heat exchange assembly of the present application.

[0023] In the drawings:

[0024] 1, support, 10, partition, 11, cover plate, 12, inlet one, 13, filling port, 14, inlet two, 15, outlet two, 16, exhaust port, 17, mounting hole;

[0025] 2, first heat exchange assembly;

[0026] 3, cooling liquid supply and storage assembly, 31, power device, 32, supply and storage unit, 310, liquid outlet, 320, backflow port;

[0027] 4, cooling mechanism, 41, compressor, 42, second heat exchange assembly, 43, throttling component, 44, blowing assembly;

[0028] 5, connecting pipe, 6, detection assembly, 7, control device. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the present application. Obviously, the embodiments described in the present application are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] Reference is made to Figure 1 andFigure 2 For further illustration of the present application, the low-temperature liquid cooling device for charging gun is used for connecting the cooling pipeline of the charging gun to cool the charging gun, comprising a support 1, a cooling liquid supply and storage assembly 3 and a cooling mechanism 4, the cooling liquid supply and storage assembly 3 and the cooling mechanism 4 are arranged on the support 1, the cooling liquid supply and storage assembly 3 is used for cooling the cooling pipeline of the charging gun, the cooling mechanism 4 is vertically arranged on one side of the cooling liquid supply and storage assembly 3, a first heat exchange assembly 2 is integrated above the cooling liquid supply and storage assembly 3, the cooling liquid supply and storage assembly 3 and the cooling mechanism 4 are connected with the first heat exchange assembly 2, the first heat exchange assembly and the cooling liquid supply and storage assembly are connected with the charging gun cooling pipeline, the first heat exchange assembly 2 is used for receiving the cooling liquid for heat dissipation of the charging gun cooling pipeline, the cooling mechanism 4 exchanges heat with the cooling liquid through the first heat exchange assembly 2, thereby cooling the cooling liquid; wherein the cooling liquid can be ethylene glycol or dimethyl silicone oil; in the embodiment, the first heat exchange assembly 2 can be an evaporator, the cooling mechanism 4 can exchange heat with the cooling liquid in the cooling liquid supply and storage assembly 3, thereby improving the cooling effect of the charging gun and occupying less space.

[0031] The cooling liquid supply and storage assembly 3 and the cooling mechanism 4 are connected with the first heat exchange assembly 2 through the connecting pipe 5; the first heat exchange assembly 2 is provided with the inlet one 12 and the outlet one 13 communicated with the cooling liquid supply and storage assembly 3, and the inlet two 14 and the outlet two 15 communicated with the cooling mechanism 4, wherein the outlet one can be arranged at the bottom of the first heat exchange assembly 2.

[0032] In combination Figure 1 , the cooling liquid supply and storage assembly 3 communicates the first heat exchange assembly 2 with the charging gun cooling pipeline to form a first cooling loop, which is used for supplying the cooling liquid to the charging gun cooling pipeline to cool the charging gun; the cooling liquid supply and storage assembly 3 comprises a power device 31 and a supply and storage unit 32, wherein the power device 31 is located at the bottom of the supply and storage unit 32, the power device 31 can be integrated in the supply and storage unit 32 or independently arranged, in the embodiment, the power device 31 is integrated with the supply and storage unit 32 to reduce the overall volume and occupied space; the power device 31 can provide power for the cooling liquid in the supply and storage unit 32, wherein the power device 31 can be a pump, the power device 31 drives the cooling liquid to flow into the charging gun cooling pipeline, the first heat exchange assembly 2 and then returns to the supply and storage unit 32 to form a first cooling loop to cool the charging gun cooling pipeline.

[0033] The supply and storage unit 32 is provided with at least one return port 320 and at least one liquid outlet 310. The return port 320 is connected with the outlet one through the connecting pipe. The cooled liquid is returned to the supply and storage unit 32. The liquid outlet 310 is connected with the outlet of the power device 31. The liquid outlet 310 and the inlet one 12 of the first heat exchange assembly 2 are connected through the charging gun cooling pipeline. In some embodiments, the liquid outlet 310 can be divided into multiple liquid outlets 310 through an adapter to connect with different charging guns, and multiple charging guns can be cooled at the same time.

[0034] In an embodiment not shown, the supply and storage unit 32 is provided with at least one liquid outlet 310. The power device 31 and the first heat exchange assembly 2 are arranged in the supply and storage unit 32. The outlet one is arranged at the bottom of the first heat exchange assembly 2 and directly communicates with the supply and storage unit 32. The cooled liquid is directly returned to the supply and storage unit 32. The power device communicates with the supply and storage unit and the liquid outlet 310. The power device is used to extract the cooled liquid in the supply and storage unit 32, pressurize the cooled liquid, and then deliver the cooled liquid out of the liquid outlet 310.

[0035] The supply and storage unit 32 is provided with a cover plate 11. The first heat exchange assembly 2 is connected with the cover plate 11 through a partition plate 10, so as to be integrated with the supply and storage unit 32. The whole occupied space is reduced. In some embodiments, the first heat exchange assembly 2 can be independently designed. The cover plate 11 is provided with an exhaust port 16 and a filling port 13. An exhaust valve is arranged in the exhaust port 16. The exhaust valve is used to exhaust the gas in the supply and storage unit 32, so as to avoid the safety hazard caused by the excessive pressure in the supply and storage unit 32. The filling port 13 is used to avoid the shortage of the cooled liquid in the supply and storage unit 32, and to supplement the cooled liquid in the supply and storage unit 32.

[0036] In combination with Figure 1The cooling mechanism 4 is used for delivering refrigerant into the first heat exchange assembly 2 to exchange heat with the cooling liquid and cool the cooling liquid. The cooling mechanism 4 comprises a compressor 41, a throttling component 43 and a second heat exchange assembly 42. The compressor 41 is arranged at the bottom of the second heat exchange assembly 42, so that the refrigerant compressed by the compressor 41 enters the second heat exchange assembly 42. The compressor 41 is connected with the second heat exchange assembly 42, the throttling component 43 and the first heat exchange assembly 2 in sequence through the connecting pipe to form a second cooling circuit. The second heat exchange assembly 42 can be a condenser, and the throttling component 43 can be an expansion valve. The compressor 41 compresses the refrigerant into high-temperature and high-pressure gas, which is delivered into the second heat exchange assembly to dissipate heat, then delivered into the throttling component 43. The throttling component 43 forms low-temperature and low-pressure refrigerant, which enters the first heat exchange assembly 2 through the inlet two 14 to exchange heat with the cooling liquid, and then returns to the compressor 41 through the outlet two 15. The cooling mechanism 4 simultaneously exchanges heat in the form of phase change refrigeration to cool the cooling liquid, so that the cooling liquid returned to the cooling liquid storage unit 32 is low-temperature cooling liquid and is stored, which is convenient for subsequent delivery into the charging gun cooling pipeline to cool the charging gun. The cooling mechanism 4 can be dynamically adjusted according to the cooling requirement.

[0037] In some embodiments, the second heat exchange assembly 42 is further provided with a blowing assembly 44 located on one side of the second heat exchange assembly 42 and arranged opposite to the second heat exchange assembly 42. The blowing assembly 44 can be a fan and can exchange heat with the second heat exchange assembly 42 in the form of air suction or blowing to air cool the second heat exchange assembly 42, accelerate the heat exchange efficiency of the second heat exchange assembly 42 and improve the heat exchange efficiency of the first heat exchange assembly 2.

[0038] Compared with the prior art, the cooling efficiency of the cooling liquid in the cooling liquid storage assembly 3 is high, the temperature of the cooling liquid can be reduced, the delivery into the charging gun cooling pipeline is facilitated, the charging gun cooling effect can be improved by dynamically adjusting according to the actual cooling requirement, the cooling efficiency of the cooling liquid in the first heat exchange assembly 2 can be improved by the cooling mechanism 4, so that the cooling effect of the charging gun is ensured, the cooling liquid storage assembly 3 and the first heat exchange assembly 2 are integrated, and the cooling mechanism 4 is arranged on one side of the cooling liquid storage assembly 3, so that the occupied space is reduced and the noise generated is reduced.

[0039] The detection assembly 6 is further arranged on the cover plate 11 and arranged in the mounting hole 17. The detection assembly 6 is used for detecting the temperature and liquid level of the cooling liquid. The detection assembly 6 can be a liquid level temperature sensor.

[0040] The rack is also provided with a control device 7 electrically connected to the detection assembly 6, the cooling liquid supply and storage assembly 3 and the cooling mechanism 4; specifically, the control device 7 is electrically connected to the blowing assembly 44, the compressor 41, the power device 31, the throttling component 43 and the detection assembly 6 for feedback control of the operation of each component according to the signal of the detection assembly 6.

[0041] In use, the cooling liquid supply and storage assembly 3 delivers cooling liquid to the charging gun cooling pipeline, and the cooling liquid after cooling the charging gun flows into the first heat exchange assembly 2, while the cooling mechanism 4 drives the refrigerant to flow to the first heat exchange assembly 2, and the refrigerant exchanges heat with the cooling liquid in the first heat exchange assembly 2 to exchange heat with the cooling liquid in the form of phase change heat exchange cooling, and the cooled low-temperature cooling liquid is delivered to the storage unit 32 for storage for subsequent supply to the charging gun for cooling.

Claims

1. The charging gun low-temperature liquid cooling device is used to connect to the charging gun cooling pipe to cool the charging gun. Its characteristics are: The application relates to a charging gun cooling device, which comprises a support, a cooling liquid supply and storage assembly arranged on the support, and a cooling mechanism. The cooling liquid supply and storage assembly is used for supplying cooling liquid to a charging gun cooling pipeline to cool the charging gun. The first heat exchange assembly is used for cooling the cooling liquid after the cooling liquid flows through the charging gun cooling pipeline through the refrigerant contained in the first heat exchange assembly. The cooling mechanism is arranged in a direction perpendicular to the arrangement direction of the cooling liquid supply and storage assembly and is used for cooling the refrigerant in the first heat exchange assembly. The cooling mechanism comprises a compressor arranged on the support, a second heat exchange assembly arranged above the compressor, and a throttling component arranged between the first heat exchange assembly and the second heat exchange assembly. The supply and storage unit comprises a supply and storage unit box body, and the power device comprises a fluid supply pump integrated in the supply and storage unit box body. The power device drives the cooling liquid in the supply and storage unit to flow to the charging gun cooling pipeline, the first heat exchange assembly and the supply and storage unit in sequence to form a first cooling loop and cool the charging gun.

2. The low-temperature liquid cooling device for charging gun according to claim 1, characterized in that: The compressor is sequentially connected with the second heat exchange assembly, the throttling component and the first heat exchange assembly to form a second cooling loop.

3. The low-temperature liquid cooling device for charging gun according to claim 2, characterized in that: The cooling mechanism further comprises a blowing assembly arranged opposite to the second heat exchange assembly and used for cooling the second heat exchange assembly.

4. The low-temperature liquid cooling device for charging gun according to claim 3, characterized in that: The arrangement direction of the compressor is perpendicular to the arrangement direction of the supply and storage unit, and the arrangement direction of the second heat exchange assembly is parallel to the arrangement direction of the compressor.

5. The low-temperature liquid cooling device for charging gun according to claim 3, characterized in that: The supply and storage unit is provided with a cover plate, the first heat exchange assembly is provided with a partition plate connected with the cover plate, and the cover plate is provided with a filling opening and an exhaust opening.

6. The low-temperature liquid cooling device for charging gun according to claim 1, characterized in that: The application further comprises a detection assembly arranged in a mounting hole arranged on the cover plate.

7. The low-temperature liquid cooling device for charging gun according to claim 6, characterized in that: The application further comprises a control device electrically connected with the detection assembly, the cooling liquid supply and storage assembly and the cooling mechanism.

8. The low-temperature liquid cooling device for charging gun according to claim 7, characterized in that: ​

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