L-shaped charging gun liquid cooling device for ultrafast charging pile

Abstract

The utility model discloses an L-shaped charging gun liquid cooling device for an ultrafast charging pile, and relates to the related technical field of charging piles. The device comprises a mounting rack, a radiator, a refrigerant box body, a circulating pump and a liquid conveying bin, the top of the mounting rack is L-shaped, the radiator is fixed to the long edge of the top surface of the mounting rack, the circulating pump is fixed to the short edge of the top surface of the mounting rack, and a protective shell is fixed to the edge of the short edge of the top surface of the mounting rack on the outer side of the circulating pump; the protective shell is fixed to one side of the radiator, the refrigerant box body is fixed to the top of the portion, above the circulating pump, of the protective shell, the refrigerant box body and the radiator are mutually fixed, and the liquid conveying bin and the liquid discharging bin are fixed to the upper portion of the crossed position between the refrigerant box body and the radiator. According to the L-shaped charging gun liquid cooling device, the mounting rack, the radiator, the refrigerant box body, the circulating pump and the liquid conveying bin are arranged, so that the problems that heat dissipation and air inlet of the L-shaped charging gun liquid cooling device for the ultra-fast charging pile are easily blocked, the wire passing space is not large enough, and the integration degree is not high enough are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of charging piles, and in particular relates to a liquid cooling device for an L-shaped charging gun of an ultra-fast charging pile. Background Technology

[0002] Liquid cooling equipment for charging piles is mainly used in high-power charging scenarios (such as supercharging and fast charging piles). It effectively controls the temperature of core components of the charging pile (such as cables, charging guns, and power modules) through liquid cooling technology, thereby improving charging efficiency, extending equipment life, and ensuring safety. In operation, the liquid cooling equipment mainly cools the refrigerant used in the charging pile. However, it still has the following drawbacks in actual use:

[0003] During the operation of the liquid cooling equipment of the charging pile, the circulation pump is usually fixed on one side of the heat sink and the air inlet of the heat sink is blocked in order to reduce the overall volume of the heat sink. However, this design will cause the air intake of the heat sink to be blocked, and there will be no space for the wiring harness of the liquid cooling device, etc., making the wiring inconvenient.

[0004] Secondly, during the refrigerant transportation process, after the entire system is circulated, it needs to flow back to the charging pile to cool the equipment. However, the refrigerant transportation pipeline joints are scattered, and the integration of the liquid cooling device is not high enough. Utility Model Content

[0005] The purpose of this utility model is to provide a liquid cooling device for an L-shaped charging gun in an ultra-fast charging pile. By setting up a mounting bracket, a heat sink, a refrigerant tank, a circulating pump, and a liquid delivery tank, it solves the problems of easy obstruction of heat dissipation and air intake, insufficient wiring space, and low integration of the L-shaped charging gun liquid cooling device in an ultra-fast charging pile.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an L-shaped liquid cooling device for an ultra-fast charging pile charging gun, comprising a mounting frame, a radiator, a refrigerant tank, a circulating pump, and a delivery chamber. The top of the mounting frame is L-shaped, and a radiator is fixed to the long side of the top surface of the mounting frame. A circulating pump is fixed to the short side of the top surface of the mounting frame. A protective shell is fixed to the edge of the short side of the top surface of the mounting frame outside the circulating pump. The protective shell is fixed to one side of the radiator. The refrigerant tank is fixed to the top of the protective shell above the circulating pump. The refrigerant tank and the radiator are fixed to each other. A delivery chamber and a drainage chamber are fixed at the upper part of the intersection between the refrigerant tank and the radiator. The delivery chamber and the drainage chamber are located at the angle between the two short sides of the top of the refrigerant tank and the radiator. During operation, the radiator, the refrigerant tank, and the circulating pump are supported on the mounting frame. The radiator dissipates the refrigerant after heat exchange. After dissipation, the refrigerant is transported to the refrigerant tank for intermediate storage. The circulating pump pumps the refrigerant in the refrigerant tank to the drainage chamber.

[0008] Furthermore, the input end of the radiator is fixedly connected to a heat dissipation pipe, and the output end of the radiator is fixedly connected to a return pipe. The heat dissipation pipe on the radiator inputs the refrigerant after heat exchange into it. The refrigerant rises and dissipates heat inside the radiator, and the return pipe transports the refrigerant to the refrigerant tank for transfer.

[0009] Furthermore, a liquid level sensor is symmetrically and fixedly installed at the bottom of the refrigerant tank, a liquid replenishment port is fixedly connected to the top of the refrigerant tank, the end of the return pipe away from the radiator is fixedly connected to the middle of the side of the refrigerant tank near the liquid inlet, and a drain pipe is fixedly connected to the bottom of the refrigerant tank. The drain pipe is located away from the radiator. When the refrigerant tank is in operation, the liquid level sensor measures the refrigerant level, and the drain pipe discharges the refrigerant from the refrigerant tank.

[0010] Furthermore, the input end of the circulation pump is fixedly connected to a refrigerant pipe, the top end of the refrigerant pipe is fixedly connected to the bottom of the refrigerant tank, and the output end of the circulation pump is fixedly connected to an output pipe. The refrigerant pipe on the circulation pump inputs the refrigerant from the refrigerant tank and pumps it out through the output pipe.

[0011] Furthermore, the top of the infusion chamber is symmetrically and fixedly connected to an input interface, and the drain chamber is symmetrically and fixedly connected to an output interface. The input interface on the infusion chamber is connected to the pipeline that delivers the hotter refrigerant after heat exchange in the charging pile, and the output interface on the drain chamber is connected to the refrigerant pipeline connector that exchanges heat with the charging pile to circulate the refrigerant.

[0012] Furthermore, the end of the heat dissipation pipe furthest from the radiator is fixedly connected to the bottom of the infusion chamber. A pressure sensor is fixedly installed through the bottom of the infusion chamber on the outside of the heat dissipation pipe. The end of the output pipe furthest from the circulation pump is fixedly connected to the bottom of the drain chamber. A pressure sensor is also fixedly installed through the bottom of the drain chamber on the outside of the output pipe. A temperature sensor is fixedly installed through one end of both the infusion chamber and the drain chamber, so that the refrigerant in the cooling cycle can be transferred at the same location, increasing the convenience of installing the charging pile's refrigerant pipeline and signal line. The pressure sensor on the infusion chamber measures the pressure of the refrigerant entering the radiator, the pressure sensor on the drain chamber measures the refrigerant pressure output from the radiator, and the temperature sensors on the infusion chamber and the drain chamber measure the temperature of the refrigerant passing through.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problems of obstructed airflow and insufficient wiring space in the liquid cooling device of the L-shaped charging gun for ultra-fast charging piles by setting up a mounting bracket, radiator, refrigerant tank, circulating pump, and liquid delivery chamber. During the heat dissipation process, the heat dissipation pipe delivers refrigerant to the radiator. When the radiator is activated, it dissipates heat as the refrigerant passes through it. After cooling, the refrigerant is delivered to the return pipe and then to the refrigerant tank. The liquid level in the refrigerant tank is displayed and determined by a liquid level sensor. The mounting bracket allows the circulating pump and radiator to be arranged in an L-shape, providing sufficient airflow space for the radiator during operation. Furthermore, during heat dissipation, air can pass over the surfaces of the circulating pump and refrigerant tank, further cooling them and reducing the refrigerant temperature. The L-shaped arrangement of the radiator and refrigerant tank also provides space for the wiring harness, making the airflow of the L-shaped charging gun liquid cooling device for ultra-fast charging piles smoother and the wiring more convenient.

[0015] This invention solves the problem of insufficient integration of the L-shaped charging gun liquid cooling device in ultra-fast charging piles by setting up a mounting bracket, radiator, refrigerant tank, circulating pump, and liquid delivery chamber. During operation, after welding the mounting bracket to the bottom of the charging pile, the end connector of the refrigerant pipeline after heat exchange on the charging pile can be connected to the input interface on the liquid delivery chamber. Then, the end connector of the pipeline using refrigerant can be connected to the output interface on the drain chamber. The signal lines are connected to two pressure sensors to detect the pressure of the refrigerant input and output cooling devices, thereby increasing the integration of the L-shaped charging gun liquid cooling device in ultra-fast charging piles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of an L-shaped charging gun liquid cooling device for an ultra-fast charging pile;

[0018] Figure 2 This is a three-dimensional structural diagram of the radiator;

[0019] Figure 3 A rear-view perspective view of the liquid cooling device for an L-shaped charging gun in an ultra-fast charging pile after removing the protective shell.

[0020] Figure 4 This is a three-dimensional structural diagram of the refrigerant container;

[0021] Figure 5 This is a three-dimensional diagram of the combined structure of the infusion chamber and the drainage chamber.

[0022] Figure label:

[0023] 1. Mounting bracket; 101. Protective housing; 2. Radiator; 201. Heat dissipation pipe; 202. Return pipe; 3. Refrigerant tank; 301. Liquid level sensor; 302. Liquid replenishment port; 303. Drain pipe; 4. Circulation pump; 401. Refrigerant pipe; 402. Output pipe; 5. Infusion tank; 501. Input interface; 502. Pressure sensor; 503. Temperature sensor; 6. Drain tank; 601. Output interface. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0025] Please see Figure 1-4This utility model relates to an L-shaped liquid cooling device for an ultra-fast charging pile charging gun, comprising a mounting frame 1, a radiator 2, a refrigerant tank 3, a circulating pump 4, and a liquid delivery chamber 5. The top of the mounting frame 1 is L-shaped, allowing the radiator 2 and the circulating pump 4 fixed on it to be distributed in an L-shape. During heat dissipation, the air intake of the radiator 2 is unaffected. The radiator 2 has a heat dissipation power ≥ 2kW and dissipates heat from the refrigerant entering it. The circulating pump 4 has a flow rate ≥ 4L / min and drives the refrigerant circulation during operation. A protective shell 101 is fixed to the edge of the short side of the top surface of the mounting frame 1 outside the circulating pump 4. During operation, the protective shell 101 protects the circulating pump 4 and pipelines. The protective shell 101 is fixed to one side of the radiator 2. A refrigerant tank 3 is fixed on the top of the protective shell 101 above the circulating pump 4. During operation, the refrigerant tank 3 stores and transfers refrigerant. The refrigerant tank 3 and the radiator 2 are fixed to each other. At the intersection between the refrigerant tank 3 and the radiator 2, a liquid inlet 5 and a liquid outlet 6 are fixed on the upper part. The liquid inlet 5 and the liquid outlet 6 are located at the angle between the two short sides of the top of the refrigerant tank 3 and the radiator 2. The liquid inlet 5 transfers the high-temperature refrigerant from the charging gun to the heat dissipation pipe 201, and the liquid outlet 6 transfers the refrigerant output from the output pipe 402 to the output interface 601.

[0026] Specifically, the input end of the radiator 2 is fixedly connected to the heat dissipation pipe 201, and the output end of the radiator 2 is fixedly connected to the return pipe 202. When the radiator 2 is working, the heat dissipation pipe 201 delivers the refrigerant that needs to be dissipated to the radiator 2, and after the refrigerant is dissipated in the radiator 2, it is output to the return pipe 202 and then output to the refrigerant tank 3.

[0027] Furthermore, a liquid level sensor 301 is symmetrically and fixedly installed at the bottom of the refrigerant tank 3, and a liquid replenishment port 302 is fixedly connected to the top of the refrigerant tank 3. The end of the return pipe 202 away from the radiator 2 is fixedly connected to the middle of the side of the refrigerant tank 3 near the liquid inlet 5. A drain pipe 303 is fixedly connected to the bottom of the refrigerant tank 3, and a drain valve is fixed at the bottom of the drain pipe 303. The drain pipe 303 is set away from the radiator 2. The liquid level sensor 301 in the refrigerant tank 3 measures the liquid level. A sealing cap is threaded onto the liquid replenishment port 302. After opening the sealing cap on the liquid replenishment port 302, refrigerant can be replenished into the refrigerant tank 3. When removing the refrigerant, the drain valve is opened to pour out the refrigerant in the refrigerant tank 3.

[0028] The operation process of this embodiment is as follows: During operation, during heat dissipation, the heat dissipation pipe 201 delivers refrigerant to the radiator 2, the radiator 2 is started, and the radiator 2 dissipates heat from the refrigerant as it passes through it. After the refrigerant is cooled, it is delivered to the return pipe 202, and then to the refrigerant tank 3. The liquid level in the refrigerant tank 3 is displayed and determined by the liquid level sensor 301. The mounting bracket 1 makes the circulation pump 4 and the radiator 2 form an L-shape, which allows sufficient space for the radiator 2 to receive air during operation. In addition, during heat dissipation, air can also pass over the surfaces of the circulation pump 4 and the refrigerant tank 3 to cool them down, further reducing the temperature of the refrigerant. The L-shape arrangement between the radiator 2 and the refrigerant tank 3 also provides space for the wiring harness to pass through. Specific Implementation

[0029] Please see Figure 1-5 Based on the first specific embodiment, the input end of the circulation pump 4 is fixedly connected to a refrigerant pipe 401, the top end of the refrigerant pipe 401 is fixedly connected to the bottom of the refrigerant tank 3, and the output end of the circulation pump 4 is fixedly connected to an output pipe 402. When the circulation pump 4 is working, a negative pressure is generated. After the refrigerant is drawn out from the refrigerant tank 3 by the refrigerant pipe 401, it enters the circulation pump 4 and is pumped by the circulation pump 4 to the output pipe 402.

[0030] Specifically, the top of the infusion chamber 5 is symmetrically and fixedly connected to an input interface 501, and the drain chamber 6 is symmetrically and fixedly connected to an output interface 601. The input interface 501 on the infusion chamber 5 is connected to the pipeline for external input refrigerant, and the output interface 601 on the drain chamber 6 is connected to the circulation pipeline for the refrigerant cooling interface used in the charging pile.

[0031] Furthermore, the end of the heat dissipation pipe 201 away from the radiator 2 is fixedly connected to the bottom of the infusion chamber 5. A pressure sensor 502 is fixedly connected through the bottom of the infusion chamber 5 outside the heat dissipation pipe 201. The end of the output pipe 402 away from the circulation pump 4 is fixedly connected to the bottom of the drain chamber 6. A pressure sensor 502 is also fixedly connected through the bottom of the drain chamber 6 outside the output pipe 402. A temperature sensor 503 is fixedly connected through one end of both the infusion chamber 5 and the drain chamber 6. After the refrigerant is transferred through the drain chamber 6, it returns to the charging gun cooling pipeline through the output interface 601. The pressure of the refrigerant passing through the infusion chamber 5 and the drain chamber 6 is measured by the pressure sensor 502, and the temperature of the refrigerant passing through the infusion chamber 5 and the drain chamber 6 is measured by the temperature sensor 503.

[0032] The operation process of this embodiment is as follows: During operation, after welding the mounting bracket 1 to the bottom of the charging pile, the end connector of the refrigerant pipe 401 after heat exchange on the charging pile can be connected to the input interface 501 on the infusion tank 5. Then, the end connector of the pipe using refrigerant can be connected to the output interface 601 on the drain tank 6. The signal lines are connected to two pressure sensors 502 respectively to detect the pressure of the refrigerant input and output cooling devices. During operation, the refrigerant is input through the input interface 501, and after passing through the infusion tank 5, it is transported to the radiator 2 for cooling. After cooling, it enters the refrigerant tank 3 for transfer. The circulation pump 4 is started to draw out the refrigerant from the refrigerant tank 3 and transport it to the drain tank 6 through the output pipe 402. Then, it is output to the cooling equipment in the charging pile through the output interface 601.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A liquid cooling device for an L-shaped charging gun in an ultra-fast charging pile, comprising a mounting bracket (1), a radiator (2), a refrigerant tank (3), a circulating pump (4), and a liquid delivery chamber (5), characterized in that: The top of the mounting bracket (1) is L-shaped, and a radiator (2) is fixed on the long side of the top surface of the mounting bracket (1). A circulation pump (4) is fixed on the short side of the top surface of the mounting bracket (1). A protective shell (101) is fixed on the short edge of the top surface of the mounting bracket (1) outside the circulation pump (4). The protective shell (101) is fixed on one side of the radiator (2). A refrigerant tank (3) is fixed on the top of the protective shell (101) above the circulation pump (4). The refrigerant tank (3) and the radiator (2) are fixed to each other. A liquid inlet (5) and a liquid outlet (6) are fixed at the upper part of the intersection between the refrigerant tank (3) and the radiator (2). The liquid inlet (5) and the liquid outlet (6) are located at the angle between the two short sides of the top of the refrigerant tank (3) and the radiator (2).

2. The liquid cooling device for an L-shaped charging gun in an ultrafast charging pile according to claim 1, characterized in that: The input end of the radiator (2) is fixedly connected to a heat dissipation pipe (201), and the output end of the radiator (2) is fixedly connected to a return pipe (202).

3. The liquid cooling device for an L-shaped charging gun in an ultrafast charging pile according to claim 2, characterized in that: A liquid level sensor (301) is symmetrically fixed through the bottom of the refrigerant tank (3). A liquid replenishment port (302) is fixedly connected to the top of the refrigerant tank (3). The end of the return pipe (202) away from the radiator (2) is fixedly connected to the middle of the side of the refrigerant tank (3) near the liquid delivery chamber (5). A drain pipe (303) is fixedly connected to the bottom of the refrigerant tank (3). The drain pipe (303) is set away from the radiator (2).

4. The liquid cooling device for an L-shaped charging gun in an ultrafast charging pile according to claim 2, characterized in that: The input end of the circulating pump (4) is fixedly connected to a refrigerant pipe (401), the top end of the refrigerant pipe (401) is fixedly connected to the bottom of the refrigerant tank (3), and the output end of the circulating pump (4) is fixedly connected to an output pipe (402).

5. The liquid cooling device for an L-shaped charging gun in an ultrafast charging pile according to claim 1, characterized in that: The top of the infusion chamber (5) is symmetrically and fixedly connected to an input interface (501), and the drain chamber (6) is symmetrically and fixedly connected to an output interface (601).

6. The liquid cooling device for an L-shaped charging gun in an ultrafast charging pile according to claim 4, characterized in that: The end of the heat dissipation pipe (201) away from the radiator (2) is fixedly connected to the bottom of the infusion chamber (5). A pressure sensor (502) is fixedly connected through the bottom of the infusion chamber (5) outside the heat dissipation pipe (201). The end of the output pipe (402) away from the circulation pump (4) is fixedly connected to the bottom of the drainage chamber (6). A pressure sensor (502) is also fixedly connected through the bottom of the drainage chamber (6) outside the output pipe (402). A temperature sensor (503) is fixedly connected through the bottom of both the infusion chamber (5) and the drainage chamber (6).

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