Liquid cooling circulation system

Abstract

The utility model relates to a liquid cooling circulation system which is used for enabling cooling liquid to flow and dissipate heat. The liquid cooling circulation system is provided with a liquid inlet part, a liquid outlet part, a heat dissipation part, a liquid storage part, a pump, a liquid outlet pipeline and a safety valve group. Cooling liquid can enter the liquid cooling circulation system from the liquid inlet part, sequentially passes through the heat dissipation part, the liquid storage part, the pump and the liquid outlet pipeline and is finally discharged out of the liquid cooling circulation system from the liquid outlet part. And the safety valve group is connected with the liquid outlet pipeline and the liquid storage part and can be used for communicating or blocking the liquid outlet pipeline and the liquid storage part. When the pressure of the liquid outlet pipeline is greater than a preset pressure, the safety valve group is communicated with the liquid outlet pipeline and the liquid storage part. Therefore, the safety valve group can prevent the pressure of the liquid outlet pipeline of the liquid cooling circulation system from being too large, and the risks of pipeline breakage, cooling liquid leakage and the like are further reduced.

Description

Technical Field

[0001] The utility model relates to a liquid cooling circulation system, in particular to a liquid cooling circulation system with a pressure safety valve. Background Art

[0002] When charging an electric vehicle, the high current generates a large amount of heat, so most electric vehicles are charged using a liquid-cooled charging gun. The characteristic of a liquid-cooled charging gun is that the cable is immersed in a coolant, which dissipates heat through the flowing coolant.

[0003] The liquid-cooled charging gun is connected to a liquid cooling system, which powers the coolant flow and simultaneously reduces its temperature. However, in low-temperature environments, the coolant's viscosity increases, causing pressure in the cooling system to rise. Excessive pressure in the cooling system can easily lead to pipe ruptures and coolant leakage. Utility Model Content

[0004] The utility model provides a liquid cooling circulation system, which is used for making a cooling liquid flow and dissipate heat, and can control the pressure in the liquid cooling circulation system.

[0005] The liquid cooling circulation system proposed in this utility model has the following features:

[0006] a liquid inlet portion, through which the coolant can enter the liquid cooling circulation system;

[0007] a liquid outlet portion, through which the coolant can be discharged from the liquid cooling circulation system;

[0008] A heat dissipation portion having:

[0009] a heat dissipation space connected to the liquid inlet;

[0010] A liquid storage portion, comprising:

[0011] a liquid storage space connected to the heat dissipation space;

[0012] a pump connected to the liquid storage space;

[0013] a liquid outlet pipe connecting the pump and the liquid outlet; and

[0014] A safety valve group is connected to the liquid outlet pipe and the liquid storage space, and can connect or block the liquid outlet pipe and the liquid storage space; when the pressure of the liquid outlet pipe is greater than a predetermined pressure, the safety valve group connects the liquid outlet pipe and the liquid storage space.

[0015] The advantage of this utility model lies in the fact that the liquid cooling circulation system includes a safety valve assembly. The safety valve assembly is disposed in the liquid outlet pipe and connects the liquid outlet pipe to the liquid storage space. When the pressure in the liquid outlet pipe exceeds a predetermined pressure, the safety valve assembly connects the liquid outlet pipe and the liquid storage space, allowing the coolant in the liquid outlet pipe to flow into the liquid storage space, thereby reducing the pressure in the liquid outlet pipe. This safety valve assembly prevents excessive pressure in the liquid cooling circulation system, thereby reducing the risks of pipeline rupture and coolant leakage.

[0016] As in the aforementioned liquid cooling circulation system, the safety valve group has:

[0017] a liquid drain pipe connected to the liquid storage space; and

[0018] A valve body is connected to the liquid outlet pipe and the liquid drain pipe, and can connect or block the liquid outlet pipe and the liquid drain pipe.

[0019] As in the aforementioned liquid cooling circulation system, the safety valve group has:

[0020] a valve stem movably disposed in the valve body and capable of connecting or blocking the liquid outlet pipe and the drain pipe; and

[0021] An elastic member pushes against the valve stem and tends to make the valve stem block the liquid outlet pipe and the drain pipe.

[0022] As in the aforementioned liquid cooling circulation system, the heat dissipation portion has a fan system; the fan system is disposed in the heat dissipation space.

[0023] As in the aforementioned liquid cooling circulation system, the heat dissipation space has a plurality of fins.

[0024] As in the aforementioned liquid cooling circulation system, the heat dissipation space has a plurality of fins, and the air supply direction of the fan system is toward the fins.

[0025] As the aforementioned liquid cooling circulation system, the liquid cooling circulation system has a control component; the control component can control the operation of the pump.

[0026] As in the aforementioned liquid cooling circulation system, the predetermined pressure is between 6 bar and 8 bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0028] Figure 2 It is a three-dimensional schematic diagram of the present invention from another viewing angle.

[0029] Figure 3 It is a side view schematic diagram of the utility model.

[0030] Figure 4 It is a bottom view schematic diagram of the present invention.

[0031] Figure 5 It is a partial three-dimensional schematic diagram of the utility model. DETAILED DESCRIPTION

[0032] The following is a detailed description of the technical means used by the present invention to achieve the intended purpose of the present invention, with reference to the drawings and preferred embodiments of the present invention.

[0033] Please refer to Figures 1 to 5 The present invention provides a liquid cooling circulation system for allowing a coolant to flow and dissipate heat.

[0034] The liquid cooling circulation system comprises a liquid inlet 10, a liquid outlet 20, a heat dissipation unit 30, a liquid reservoir 40, a pump 50, a control assembly 51, a liquid outlet pipe 60, and a safety valve assembly 70. Coolant can enter the liquid cooling circulation system through the liquid inlet 10 and exit the system through the liquid outlet 20.

[0035] The heat sink 30 comprises a heat dissipation space 31, a fan system 32, and a plurality of fins 33. The heat dissipation space 31 is connected to the liquid inlet 10. The fan system 32 is disposed outside the heat dissipation space 31, and the fins 33 are disposed within the heat dissipation space 31. Coolant enters the heat dissipation space 31 from the liquid inlet 10. The fins 33 increase the contact area between the coolant and the heat dissipation space 31, and the multiple fan systems 32 enhance the heat dissipation process of the coolant. In this embodiment, the fan system blows air toward the fins, but this is not a limitation.

[0036] The liquid reservoir 40 has a liquid storage space connected to the heat dissipation space 31. Cooled coolant flows from the heat dissipation space 31 into the liquid storage space and is temporarily stored there. A pump 50 is connected to the liquid storage space. As the coolant passes through the pump 50, it accelerates the flow of the coolant. A control component 51 is signal-connected to the pump 50 and controls its operation, turning it on and off.

[0037] The liquid outlet pipe 60 connects the pump 50 and the liquid outlet portion 20, allowing coolant to exit the liquid cooling circulation system. A safety valve assembly 70 connects the liquid outlet pipe 60 and the liquid storage space of the liquid storage portion 40, and can connect or block the liquid outlet pipe 60 and the liquid storage space of the liquid storage portion 40. When the pressure in the liquid outlet pipe 60 exceeds a predetermined pressure, the safety valve assembly 70 connects the liquid outlet pipe 60 and the liquid storage portion 40.

[0038] In this embodiment, the safety valve assembly 70 comprises a drain pipe 71, a valve body, a valve stem, and an elastic member. The drain pipe 71 is connected to the liquid storage space of the liquid reservoir 40, while the valve body connects the liquid outlet pipe 60 and the drain pipe 71. The valve stem is movably disposed within the valve body and can connect or block the liquid outlet pipe 60 and the drain pipe 71. The elastic member presses against the valve stem, tending to cause the valve stem to block the liquid outlet pipe 60 and the drain pipe 71.

[0039] When the pressure in the liquid outlet pipe 60 exceeds the predetermined pressure, the coolant pushes against the valve stem, causing the valve stem to resist the elastic member and move. The valve body then connects the liquid outlet pipe 60 and the drain pipe 71, allowing the coolant in the liquid outlet pipe 60 to flow through the safety valve assembly 70 into the liquid storage space of the liquid storage portion 40, thereby reducing the pressure in the liquid outlet pipe 60. When the pressure in the liquid outlet pipe 60 decreases, the elastic member pushes against the valve stem, causing the valve stem to block the liquid outlet pipe 60 and the drain pipe 71. The set value of the predetermined pressure depends on the elastic coefficient of the elastic member. In this embodiment, the set value of the predetermined pressure is between 6 bar and 8 bar (inclusive), and preferably 7 bar, but is not limited thereto.

[0040] The advantage of the present invention lies in the presence of a safety valve assembly 70 in the liquid cooling circulation system. This safety valve assembly 70 is located in the liquid outlet pipe 60 and connects the liquid outlet pipe 60 to the liquid reservoir 40. When the pressure in the liquid outlet pipe 60 exceeds a predetermined pressure, the safety valve assembly 70 connects the liquid outlet pipe 60 with the liquid storage space of the liquid reservoir 40, allowing the coolant in the liquid outlet pipe 60 to flow into the liquid storage space of the liquid reservoir 40, thereby reducing the pressure in the liquid outlet pipe 60. This prevents excessive pressure in the liquid cooling circulation system, thereby reducing the risks of pipeline rupture and coolant leakage.

[0041] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A liquid cooling circulation system for circulating a coolant and dissipating heat, characterized in that: The liquid cooling circulation system has: a liquid inlet portion, through which the coolant can enter the liquid cooling circulation system; a liquid outlet portion, through which the coolant can be discharged from the liquid cooling circulation system; A heat dissipation portion having: a heat dissipation space connected to the liquid inlet; A liquid storage portion, comprising: a liquid storage space connected to the heat dissipation space; a pump connected to the liquid storage space; a liquid outlet pipe connecting the pump and the liquid outlet; and A safety valve group is connected to the liquid outlet pipe and the liquid storage space, and can connect or block the liquid outlet pipe and the liquid storage space; when the pressure of the liquid outlet pipe is greater than a predetermined pressure, the safety valve group connects the liquid outlet pipe and the liquid storage space.

2. The liquid cooling circulation system according to claim 1, characterized in that: The safety valve group has: a liquid drain pipe connected to the liquid storage space; and A valve body is connected to the liquid outlet pipe and the liquid drain pipe, and can connect or block the liquid outlet pipe and the liquid drain pipe.

3. The liquid cooling circulation system according to claim 2, characterized in that: The safety valve group has: a valve stem movably disposed in the valve body and capable of connecting or blocking the liquid outlet pipe and the drain pipe; and An elastic member pushes against the valve stem and tends to make the valve stem block the liquid outlet pipe and the drain pipe.

4. The liquid cooling circulation system according to any one of claims 1 to 3, characterized in that: The heat dissipation part has a fan system; the fan system is connected to the heat dissipation space.

5. The liquid cooling circulation system according to any one of claims 1 to 3, characterized in that: The heat dissipation space has a plurality of fins.

6. The liquid cooling circulation system according to claim 4, characterized in that: The heat dissipation space has a plurality of fins, and the air supply direction of the fan system is toward the fins.

7. The liquid cooling circulation system according to any one of claims 1 to 3, characterized in that: The liquid cooling circulation system has a control component; the control component can control the operation of the pump.

8. The liquid cooling circulation system according to any one of claims 1 to 3, characterized in that: The predetermined pressure is between 6 bar and 8 bar.

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