Liquid cooling plate structure for cooling battery cell

By using a combined design of liquid-cooled plate and coolant conveying components in the battery cell module, the simultaneous heat exchange between both sides of the battery cell is achieved, which solves the problems of large temperature difference and poor cooling effect of the battery cell, improves the charging efficiency and service life of the battery cell, and reduces the risk of combustion and explosion.

CN223309070UActive Publication Date: 2025-09-05ZHEJIANG FUYUAN REFRIGERATION EQUIP CO LTD
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Patent Information

Application Number
CN202422461796.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-09-05
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

The existing cooling method of battery cell modules leads to a large temperature difference between the bottom and internal of the battery cell, poor cooling effect, low charging efficiency, large energy consumption loss, and a risk of combustion and explosion.

Method used

Several liquid-cooling plates and coolant transport components are adopted. The battery cell is installed between two adjacent liquid-cooling plates. The coolant circulates heat exchange within the liquid-cooling plate to achieve heat exchange at the same time on both sides of the battery cell. The runner is designed as a U-shaped structure to exchange heat evenly, and the inlet and outlet liquid parts are designed as U-shaped and S-shaped bends to improve stability.

Benefits of technology

It greatly improves the heat exchange efficiency of the battery cell, reduces the temperature difference between the inside and outside, improves charging efficiency, reduces energy consumption loss, extends the battery cell life, and eliminates the risk of combustion and explosion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid cooling plate structure for cooling battery cells, which comprises a plurality of liquid cooling plates and a plurality of liquid cooling plates, and the battery cells are arranged between two adjacent liquid cooling plates; and the cooling liquid conveying assembly is used for providing cooling liquid for the single liquid cooling plate and enabling the cooling liquid to perform circulating heat exchange in the single liquid cooling plate. According to the utility model, the plurality of liquid cooling plates and the cooling liquid conveying assemblies are arranged, the battery cells are arranged between the two adjacent liquid cooling plates, and the cooling liquid conveying assemblies control the cooling liquid to circularly exchange heat in the liquid cooling plates, so that the two sides of the liquid cooling plates can exchange heat simultaneously, namely, the liquid cooling plates positioned on the two sides of a single battery cell can exchange heat for the battery cell simultaneously; the internal and external temperature difference of the battery cell is effectively reduced; the charging efficiency of the battery cell is improved; the energy consumption loss is reduced; the service life of the battery cell is prolonged;
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Description

Technical Field

[0001] The utility model belongs to the technical field of liquid cooling plate equipment, and in particular relates to a liquid cooling plate structure for cooling an electric core. Background Art

[0002] Currently, the research and application of battery modules are gaining increasing attention. Various devices are placing increasing demands on the energy and power of battery modules, which in turn increases the heat generated by these modules. To protect these modules from damage and extend their service life, numerous cooling structures have been developed. Existing cooling methods for battery modules primarily involve placing them on liquid cooling plates for heat dissipation.

[0003] In the prior art, battery cell modules are generally cooled by cooling the bottom of the battery cell module, resulting in a large temperature difference between the bottom of the battery cell and the interior of the battery cell, poor cooling effect, low battery cell charging efficiency, large energy loss, and reduced battery cell service life. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned technical problems existing in the prior art and provide a liquid cooling plate structure for cooling battery cells. By arranging a plurality of liquid cooling plates and a coolant delivery assembly, the battery cells are installed between two adjacent liquid cooling plates. The coolant delivery assembly controls the coolant to circulate and exchange heat inside the liquid cooling plate, so that both sides of the liquid cooling plate can exchange heat at the same time, that is, the liquid cooling plates located on both sides of a single battery cell can exchange heat for the battery cell at the same time, which greatly improves the heat exchange efficiency, effectively reduces the temperature difference between the inside and outside of the battery cell, improves the charging efficiency of the battery cell, reduces energy consumption loss, extends the service life of the battery cell, and basically eliminates the risk of battery cell combustion and explosion.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A liquid cooling plate structure for cooling battery cells comprises: a plurality of liquid cooling plates, wherein the battery cells are arranged between two adjacent liquid cooling plates; and a coolant delivery assembly for providing coolant to a single liquid cooling plate and allowing the coolant to circulate and exchange heat within the single liquid cooling plate. The utility model provides a plurality of liquid cooling plates and a coolant delivery assembly, wherein the battery cells are installed between two adjacent liquid cooling plates. The coolant delivery assembly controls the coolant to circulate and exchange heat within the liquid cooling plates, so that both sides of the liquid cooling plates can exchange heat simultaneously. That is, the liquid cooling plates located on both sides of a single battery cell can simultaneously exchange heat with the battery cell, greatly improving the heat exchange efficiency, effectively reducing the temperature difference between the inside and outside of the battery cell, improving the charging efficiency of the battery cell, reducing energy consumption loss, extending the service life of the battery cell, and basically eliminating the risk of battery cell combustion and explosion.

[0007] Furthermore, the liquid cooling plate includes heat exchange plate 1, heat exchange plate 2, and a flow channel partition frame. The flow channel partition frame is fixedly connected between heat exchange plate 1 and heat exchange plate 2, and a flow channel is formed between the flow channel partition frame and the inner sides of heat exchange plate 1 and heat exchange plate 2. The flow channel is used to circulate coolant. The flow channel partition frame and the space between heat exchange plate 1 and heat exchange plate 2 form a flow channel for coolant circulation, allowing the coolant to circulate between heat exchange plate 1 and heat exchange plate 2. Heat exchange plate 1 and heat exchange plate 2 respectively abut the side walls of the battery cell, and heat exchange is achieved with the coolant. Since the battery cell is arranged between two adjacent liquid cooling plates, the temperature difference between the inside and outside of the battery cell is effectively reduced.

[0008] Furthermore, the flow channel has a U-shaped structure. The U-shaped flow channel arrangement allows the coolant to flow through various positions on the inner side of the heat exchange plate 1 and the inner side of the heat exchange plate 2, ensuring uniform heat exchange effect at various positions of the heat exchange plate 1 and the heat exchange plate 2.

[0009] Furthermore, the thickness of the liquid cooling plate is 2.5 mm to 6 mm.

[0010] Furthermore, the coolant delivery assembly includes an inlet, an outlet, and a connector. The inlet is used to deliver coolant into the liquid cooling plate, and the coolant in the liquid cooling plate is discharged through the outlet. One end of the inlet and outlet are fixedly connected to the connector. The connector is configured to securely mount the inlet and outlet, ensuring stability during coolant delivery.

[0011] Furthermore, the liquid inlet component includes a U-shaped water pipe, connecting pipe 1, and connector 1. One end of connecting pipe 1 is connected to the U-shaped water pipe, and connector 1 is connected to the other end of connecting pipe 1. A liquid inlet hole is provided at one end of the liquid cooling plate, and the liquid inlet hole is connected to connector 1. Cooling liquid enters from one end of the U-shaped water pipe, passes through connecting pipe 1, and then enters connector 1. The cooling liquid then enters the liquid cooling plate through connector 1 through the liquid inlet hole.

[0012] Furthermore, the U-shaped water pipe has a water inlet at one end near the connector, a plugging head 1 at the other end, and a connecting pipe 1 connected to the end of the U-shaped water pipe near the plugging head. The U-shaped water pipe is designed into a U-shape, with the connecting pipe located at the end away from the water inlet. This reduces the water pressure in the U-shaped water pipe, thereby improving the stability of coolant delivery to the liquid cooling plate and extending the service life of the U-shaped water pipe.

[0013] Furthermore, the liquid outlet component includes a liquid outlet pipe, a second connecting pipe, and a second connector. One end of the second connecting pipe is connected to the liquid outlet pipe, and the second connector is connected to the other end of the second connecting pipe. One end of the liquid cooling plate is provided with a liquid outlet hole, which is connected to the second connector. The coolant in the liquid cooling plate is discharged through the liquid outlet hole to the second connector, and then from the second connector through the second connecting pipe to the liquid outlet pipe, and finally the coolant is discharged from the liquid outlet pipe.

[0014] Furthermore, a water outlet is provided at one end of the liquid outlet pipe close to the connecting seat, and a plugging head 2 is provided at the other end of the liquid outlet pipe. The coolant in the liquid outlet pipe is discharged from the water outlet.

[0015] Furthermore, an S-shaped bend is provided at one end of the liquid outlet pipe near the water outlet. The S-shaped bend has a pressure relief function, ensuring a stable water pressure in the liquid outlet pipe, thereby extending the service life of the liquid outlet pipe and facilitating its installation and layout.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] The utility model provides a plurality of liquid cooling plates and cooling liquid delivery components, and the battery cells are installed between two adjacent liquid cooling plates. The cooling liquid delivery components control the cooling liquid to circulate and exchange heat inside the liquid cooling plates, so that both sides of the liquid cooling plates can exchange heat at the same time. That is, the liquid cooling plates located on both sides of a single battery cell can exchange heat for the battery cell at the same time, which greatly improves the heat exchange efficiency, effectively reduces the temperature difference between the inside and outside of the battery cell, improves the charging efficiency of the battery cell, reduces energy consumption loss, extends the service life of the battery cell, and basically eliminates the risk of battery cell combustion and explosion.

[0018] The liquid cooling plate of the present invention includes a heat exchange plate 1, a heat exchange plate 2, and a flow channel partition frame. The flow channel partition frame is fixedly connected between the heat exchange plate 1 and the heat exchange plate 2, and a flow channel is formed between the flow channel partition frame and the inner side of the heat exchange plate 1 and the inner side of the heat exchange plate 2. The flow channel is used to circulate coolant. The flow channel partition frame and the heat exchange plate 1 and the heat exchange plate 2 are separated to form a flow channel for coolant circulation, so that the coolant can flow between the heat exchange plate 1 and the heat exchange plate 2. The heat exchange plate 1 and the heat exchange plate 2 are respectively placed against the side walls of the battery cell, and the coolant is used to achieve heat exchange with the battery cell. Since the battery cell is arranged between two adjacent liquid cooling plates, the temperature difference between the inside and outside of the battery cell is effectively reduced.

[0019] The liquid inlet component in the present invention includes a U-shaped water pipe, a connecting pipe 1 and a connecting head 1. One end of the connecting pipe 1 is connected to the U-shaped water pipe, and the connecting head 1 is connected to the other end of the connecting pipe 1. A liquid inlet hole is provided at one end of the liquid cooling plate, and the liquid inlet hole is connected to the connecting head 1. The coolant enters from one end of the U-shaped water pipe, passes through the connecting pipe 1 and then enters the connecting head 1. The coolant then enters the liquid cooling plate from the connecting head 1 through the liquid inlet hole. The U-shaped water pipe is provided with a water inlet at one end close to the connecting seat, and a sealing head 1 is provided at the other end of the U-shaped water pipe. The connecting pipe 1 is connected to the end of the U-shaped water pipe close to the sealing head. The U-shaped water pipe is designed as a U-shaped structure, and the connecting pipe is provided at the end away from the water inlet, which can reduce the water pressure in the U-shaped water pipe, thereby improving the stability of the coolant transported to the liquid cooling plate and extending the service life of the U-shaped water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of a liquid cooling plate structure for battery core cooling in the utility model;

[0022] Figure 2 This is an exploded view of the liquid cooling plate in the present invention;

[0023] Figure 3 This is a schematic structural diagram of the coolant delivery assembly in the present invention;

[0024] Figure 4 This is a schematic structural diagram of the liquid inlet component in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the liquid outlet part in the utility model.

[0026] In the figure, 1-liquid cooling plate; 2-cooling liquid delivery assembly; 3-heat exchange plate 1; 4-heat exchange plate 2; 5-flow channel partition frame; 6-liquid inlet; 7-liquid outlet; 8-connecting seat; 9-U-shaped water pipe; 10-connecting pipe 1; 11-connecting head 1; 12-liquid inlet hole; 13-water inlet; 14-sealing head 1; 15-liquid outlet pipe; 16-connecting pipe 2; 17-connecting head 2; 18-liquid outlet hole; 19-water outlet; 20-sealing head 2; 21-S-shaped bend section. DETAILED DESCRIPTION

[0027] like Figures 1 to 5 As shown, the utility model is a liquid cooling plate structure for cooling battery cells, comprising: a plurality of liquid cooling plates 1, with battery cells arranged between two adjacent liquid cooling plates 1; a cooling liquid delivery assembly 2, for providing cooling liquid to a single liquid cooling plate 1, and allowing the cooling liquid to circulate and exchange heat within the single liquid cooling plate 1.

[0028] The liquid cooling plate 1 includes a heat exchange plate 1 3, a heat exchange plate 2 4, and a flow channel partition frame 5. The flow channel partition frame 5 is fixedly connected between the heat exchange plates 1 3 and 2 4, forming a flow channel between the flow channel partition frame 5 and the inner sides of the heat exchange plates 1 3 and 2 4. The flow channel is used to circulate the coolant. The flow channel partition frame 5 separates the heat exchange plates 1 3 and 2 4 to form a flow channel for the coolant, allowing the coolant to flow between the heat exchange plates 1 3 and 2 4. The heat exchange plates 1 3 and 2 4 respectively abut the side walls of the battery cells, and the coolant is used to exchange heat with the battery cells. Since the battery cells are arranged between two adjacent liquid cooling plates 1, the temperature difference between the inside and outside of the battery cells is effectively reduced. The flow channel has a U-shaped structure. The U-shaped flow channel arrangement allows the coolant to flow through various locations on the inner sides of the heat exchange plates 1 3 and 2 4, ensuring uniform heat exchange at all locations on the heat exchange plates 1 3 and 2 4. The thickness of the liquid cooling plate 1 is 2.5 mm to 6 mm.

[0029] The coolant delivery assembly 2 includes an inlet 6, an outlet 7, and a connector 8. The inlet 6 is used to deliver coolant into the liquid cooling plate 1, and the coolant in the liquid cooling plate 1 is discharged through the outlet 7. One end of the inlet 6 and one end of the outlet 7 are fixedly connected to the connector 8. The connector 8 is provided to securely mount the inlet 6 and outlet 7, ensuring the stability of the inlet 6 and outlet 7 during coolant delivery.

[0030] The liquid inlet component 6 includes a U-shaped water pipe 9, a connecting pipe 10, and a connector 11. One end of the connecting pipe 10 is connected to the U-shaped water pipe 9, and the connector 11 is connected to the other end of the connecting pipe 10. A liquid inlet hole 12 is provided at one end of the liquid cooling plate 1, and the liquid inlet hole 12 is connected to the connector 11. The coolant enters from one end of the U-shaped water pipe 9, passes through the connecting pipe 10, and then enters the connector 11. The coolant then enters the liquid cooling plate 1 through the liquid inlet hole 12 through the connector 11. The end of the U-shaped water pipe 9 near the connecting seat 8 is provided with a water inlet 13, and the other end of the U-shaped water pipe 9 is provided with a plug 14. The connecting pipe 10 is connected to the end of the U-shaped water pipe 9 near the plug. The U-shaped water pipe 9 is designed as a U-shaped structure, and the connecting pipe is arranged at the end away from the water inlet 13, which can reduce the water pressure in the U-shaped water pipe 9, thereby improving the stability of the coolant delivered to the liquid cooling plate 1 and extending the service life of the U-shaped water pipe 9.

[0031] The liquid outlet part 7 includes a liquid outlet pipe 15, a second connecting pipe 16, and a second connecting head 17. One end of the second connecting pipe 16 is connected to the liquid outlet pipe 15, and the second connecting head 17 is connected to the other end of the second connecting pipe 16. A liquid outlet hole 18 is provided at one end of the liquid cooling plate 1, and the liquid outlet hole 18 is connected to the second connecting head 17. The coolant in the liquid cooling plate 1 is discharged through the liquid outlet hole 18 to the second connecting head 17, and then discharged from the second connecting head 17 through the second connecting pipe 16 to the liquid outlet pipe 15. Finally, the coolant is discharged from the liquid outlet pipe 15. The end of the liquid outlet pipe 15 near the connecting seat 8 is provided with a water outlet 19, and the other end of the liquid outlet pipe 15 is provided with a second sealing head 20. The coolant in the liquid outlet pipe 15 is discharged from the water outlet 19. The end of the liquid outlet pipe 15 near the water outlet 19 is provided with an S-shaped bend section 21. The S-shaped curved pipe section 21 has a pressure relief function, ensuring a stable water pressure in the liquid outlet pipe 15 , thereby extending the service life of the liquid outlet pipe 15 and facilitating the installation and arrangement of the liquid outlet pipe 15 .

[0032] The utility model provides a plurality of liquid cooling plates 1 and cooling liquid delivery components 2, and the battery cells are installed between two adjacent liquid cooling plates 1. The cooling liquid delivery components 2 control the circulation of cooling liquid in the liquid cooling plates 1 for heat exchange, so that both sides of the liquid cooling plates 1 can exchange heat at the same time, that is, the liquid cooling plates 1 located on both sides of a single battery cell can exchange heat for the battery cell at the same time, which greatly improves the heat exchange efficiency, effectively reduces the temperature difference between the inside and outside of the battery cell, improves the charging efficiency of the battery cell, reduces energy consumption loss, extends the service life of the battery cell, and basically eliminates the risk of battery cell combustion and explosion.

[0033] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention that solve essentially the same technical problems and achieve essentially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A liquid cooling plate structure for battery core cooling, characterized in that: include: Several liquid cooling plates, with the battery cells arranged between two adjacent liquid cooling plates; The cooling liquid delivery component is used to provide cooling liquid to the single liquid cooling plate and to allow the cooling liquid to circulate and exchange heat within the single liquid cooling plate.

2. The liquid cooling plate structure for battery core cooling according to claim 1, characterized in that: The liquid cooling plate includes a heat exchange plate 1, a heat exchange plate 2 and a flow channel partition frame. The flow channel partition frame is fixedly connected between the heat exchange plate 1 and the heat exchange plate 2. A flow channel is formed between the flow channel partition frame and the inner side of the heat exchange plate 1 and the inner side of the heat exchange plate 2. The flow channel is used for the circulation of the cooling liquid.

3. The liquid cooling plate structure for battery core cooling according to claim 2, characterized in that: The flow channel has a U-shaped structure.

4. The liquid cooling plate structure for battery core cooling according to claim 1, characterized in that: The thickness of the liquid cooling plate is 2.5 mm to 6 mm.

5. The liquid cooling plate structure for battery core cooling according to claim 1, characterized in that: The coolant delivery assembly includes a liquid inlet, a liquid outlet and a connecting seat. The liquid inlet is used to deliver the coolant into the liquid cooling plate. The coolant in the liquid cooling plate is discharged through the liquid outlet. One end of the liquid inlet and one end of the liquid outlet are fixedly connected to the connecting seat.

6. The liquid cooling plate structure for battery core cooling according to claim 5, characterized in that: The liquid inlet component includes a U-shaped water pipe, a connecting pipe and a connecting head. One end of the connecting pipe is connected to the U-shaped water pipe, and the connecting head is connected to the other end of the connecting pipe. One end of the liquid cooling plate is provided with a liquid inlet hole, and the liquid inlet hole is connected to the connecting head.

7. The liquid cooling plate structure for battery core cooling according to claim 6, characterized in that: The U-shaped water pipe is provided with a water inlet at one end close to the connecting seat, and a plugging head is provided at the other end of the U-shaped water pipe. The connecting pipe is connected to the end of the U-shaped water pipe close to the plugging head.

8. The liquid cooling plate structure for battery core cooling according to claim 5, characterized in that: The liquid outlet part includes a liquid outlet pipe, a second connecting pipe and a second connecting head. One end of the second connecting pipe is connected to the liquid outlet pipe, and the second connecting head is connected to the other end of the second connecting pipe. One end of the liquid cooling plate is provided with a liquid outlet hole, and the liquid outlet hole is connected to the second connecting head.

9. The liquid cooling plate structure for battery core cooling according to claim 8, characterized in that: The liquid outlet pipe is provided with a water outlet at one end close to the connecting seat, and the other end of the liquid outlet pipe is provided with a second sealing head.

10. The liquid cooling plate structure for battery core cooling according to claim 9, characterized in that: An S-shaped curved pipe section is provided at one end of the liquid outlet pipe close to the water outlet.