Liquid-cooled battery module convenient for uniform heat exchange
By using liquid-cooled clips and flame-retardant thermal double-sided tape to fill the gaps in the liquid-cooled battery module, combined with the design of the liquid-cooled chassis and thermal panel, the problem of uneven heat exchange of the liquid-cooled battery module is solved, and the further improvement is achieved Efficient cooling and extended battery life.
Patent Information
- Application Number
- CN202420697076.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-07
AI Technical Summary
There is unevenness in the existing liquid-cooled battery modules during the heat exchange process, which leads to an increase in battery temperature and affects performance and life.
A liquid-cooled battery module including a liquid-cooled frame, a sealed piston, a protective cover, a liquid-cooled clip and a flame-retardant thermal double-sided tape was designed. The gap of the battery module is entered through the liquid-cooled clip, and the flame-retardant thermal double-sided tape is used. The tape fills uneven gaps, and the liquid-cooled chassis and thermally conductive panels enhance heat transfer and improve heat dissipation efficiency.
It realizes uniform heat exchange of the battery module, improves heat dissipation efficiency, reduces battery temperature, and extends the battery service life.
Smart Images
Figure CN222146368U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of liquid-cooled battery modules, in particular to a liquid-cooled battery module which is convenient for uniform heat exchange. Background Art
[0002] The liquid-cooled battery module consists of battery cells, cooling pipes, cooling media and control systems. The liquid-cooled battery module dissipates heat from the battery through cooling pipes and cooling media. When the battery is working, the battery cell will generate a lot of heat. If the heat is not dissipated in time, the battery temperature will rise, affecting the performance and life of the battery. The working principle of the liquid-cooled battery module is as follows: the cooling medium is extracted from the cooling system, flows through the battery cells through the cooling pipes, absorbs the heat of the battery, and then returns to the cooling system for cooling. The liquid-cooled battery module uses liquid or gaseous cooling media and has a high heat dissipation effect. The liquid cooling medium has good thermal conductivity and can quickly take away the heat of the battery; the gaseous cooling medium can dissipate heat through convection and radiation, effectively reducing the battery temperature.
[0003] For example, the utility model with application number CN202210969481.1 provides a network video monitoring device, which can gradually increase the flow rate in each chamber segment along the flow direction of the coolant, so that the coolant flow rate is faster closer to the water outlet, thereby taking away more heat, ensuring the consistency of heat exchange of the side liquid cooling plate to the battery module in the length direction. However, the contact area between the liquid cooling tube and the battery module is relatively small, which will cause uneven heat exchange.
[0004] Therefore, in view of this, research and improvement are conducted on the existing structure and defects, and a liquid-cooled battery module is provided that facilitates uniform heat exchange. Utility Model Content
[0005] The purpose of the utility model is to provide a liquid-cooled battery module that facilitates uniform heat exchange, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid-cooled battery module that facilitates uniform heat exchange, comprising a liquid-cooled frame and a sealing piston, wherein a protective cover is provided at the upper end of the liquid-cooled frame, and a heat exchange component for heat conduction and heat exchange is installed on the inner wall of the protective cover, wherein the heat exchange component comprises a liquid-cooled clip and a flame-retardant thermally conductive double-sided tape, and the outer wall of the liquid-cooled clip is provided with a flame-retardant thermally conductive double-sided tape, a liquid-cooled chassis is provided at the bottom of the liquid-cooled frame, and a liquid coolant inlet is provided on the surface of the liquid-cooled chassis, and the sealing piston is arranged inside the liquid coolant inlet.
[0007] Furthermore, the liquid cooling clips are distributed at equal distances with respect to the inner wall of the protective cover, and the liquid cooling clips are adhesively connected to the flame-retardant and heat-conductive double-sided adhesive tape.
[0008] Furthermore, the shape and structure of the liquid coolant inlet is consistent with that of the sealing piston, and the liquid coolant inlet and the sealing piston are snap-fittedly connected.
[0009] Furthermore, a battery module is installed inside the liquid cooling frame, and an auxiliary component for heat conduction is provided inside the liquid cooling frame.
[0010] Furthermore, the auxiliary component includes a heat-conducting panel and a liquid inlet. The inner wall of the liquid cooling frame is provided with the heat-conducting panel, and the upper end of the liquid cooling frame is provided with a liquid inlet.
[0011] Furthermore, the heat conduction panel and the liquid cooling frame are connected by adhesive bonding, and the liquid inlets are symmetrically distributed about the lateral center of the liquid cooling chassis.
[0012] Furthermore, a liquid inlet is provided on the surface of the protective cover, and a sealing cover is arranged on the upper end of the protective cover.
[0013] Furthermore, the inner wall of the sealing cover is provided with insertion plugs, and the number of the insertion plugs is consistent with the number of the liquid guide inlets.
[0014] The utility model provides a liquid-cooled battery module that facilitates uniform heat exchange and has the following beneficial effects:
[0015] 1. The utility model can perform heat exchange on the bottom of the battery module through the liquid cooling chassis. The heat conduction panel can quickly transfer the heat generated by the battery module to the liquid cooling frame, so that the heat can contact the liquid coolant in the liquid cooling frame, thereby improving the efficiency of heat exchange and heat dissipation. The liquid cooling frame can perform heat exchange on the front and back sides of the battery module.
[0016] 2. The utility model can enter the gaps between battery modules through the liquid cooling clip, so that the liquid coolant can completely contact all surfaces of the battery module. The flame-retardant thermally conductive double-sided tape has the characteristics of high thermal conductivity, high viscosity, and low thermal impedance, which can effectively replace the characteristics of thermal bonding and mechanical fixation, and can fill the uneven gaps between the heat source and the battery module, taking away the heat generated by the battery module, thereby achieving the effect of cooling and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the main structure of a liquid-cooled battery module that facilitates uniform heat exchange according to the utility model;
[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of a liquid cooling frame of a liquid-cooled battery module that facilitates uniform heat exchange according to the utility model;
[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a liquid cooling frame of a liquid-cooled battery module that facilitates uniform heat exchange according to the utility model;
[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of a heat exchange component of a liquid-cooled battery module that facilitates uniform heat exchange according to the utility model;
[0021] Figure 5 The utility model is a schematic diagram of the three-dimensional structure of a sealing cover of a liquid-cooled battery module that facilitates uniform heat exchange.
[0022] In the figure: 1. Liquid cooling frame; 2. Protective cover; 3. Sealing cover; 4. Liquid cooling chassis; 5. Liquid coolant inlet; 6. Sealing piston; 7. Battery module; 8. Auxiliary components; 801. Heat conduction panel; 802. Liquid inlet; 9. Liquid conduction inlet; 10. Heat exchange component; 1001. Liquid cooling clip; 1002. Flame-retardant thermal conductive double-sided tape; 11. Insertion plug. DETAILED DESCRIPTION
[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0024] like Figure 1-Figure 5As shown, a liquid-cooled battery module that facilitates uniform heat exchange includes a liquid-cooled frame 1 and a sealing piston 6. A protective cover 2 is provided at the upper end of the liquid-cooled frame 1, and a heat exchange component 10 for heat conduction and heat exchange is installed on the inner wall of the protective cover 2. The heat exchange component 10 includes a liquid-cooled clip 1001 and a flame-retardant heat-conducting double-sided tape 1002, and the outer wall of the liquid-cooled clip 1001 is provided with a flame-retardant heat-conducting double-sided tape 1002. A liquid-cooled chassis 4 is provided at the bottom of the liquid-cooled frame 1, and a liquid coolant inlet 5 is opened on the surface of the liquid-cooled chassis 4. The sealing piston 6 is arranged inside the liquid coolant inlet 5. The liquid-cooled The clips 1001 are distributed at equal distances with respect to the inner wall of the protective cover 2, and the liquid cooling clips 1001 are connected to the flame retardant heat conductive double-sided tape 1002 by adhesive bonding. The liquid cooling clips 1001 can enter the gaps between the battery modules 7, so that the liquid coolant can completely contact all surfaces of the battery module 7. The flame retardant heat conductive double-sided tape 1002 has the characteristics of high thermal conductivity, high viscosity, and low thermal impedance, which can effectively replace the characteristics of thermal bonding and mechanical fixing, and can fill the uneven gaps between the heat source and the battery module 7, taking away the heat generated by the battery module 7, thereby achieving cooling and heat dissipation. The shape and structure of the liquid coolant inlet 5 are consistent with the shape and structure of the sealing piston 6, and the liquid coolant inlet 5 and the sealing piston 6 are connected by snapping, the battery module 7 is installed inside the liquid cooling frame 1, and the auxiliary component 8 for heat conduction is arranged inside the liquid cooling frame 1, the auxiliary component 8 includes a heat conduction panel 801 and a liquid inlet 802, the inner wall of the liquid cooling frame 1 is provided with a heat conduction panel 801, and the upper end of the liquid cooling frame 1 is provided with a liquid inlet 802, the heat conduction panel 801 and the liquid cooling frame 1 are connected by adhesive, and the liquid inlet 802 is symmetrically distributed about the lateral center of the liquid cooling chassis 4, A liquid inlet 9 is provided on the surface of the protective cover 2, and a sealing cover 3 is placed on the upper end of the protective cover 2. Insertion plugs 11 are provided on the inner wall of the sealing cover 3, and the number of the insertion plugs 11 is consistent with the number of the liquid inlet 9. The bottom of the battery module 7 can be exchanged with cold and heat through the liquid cooling chassis 4. The heat conduction panel 801 can quickly transfer the heat generated by the battery module 7 to the liquid cooling frame 1, so that the heat can contact the liquid coolant in the liquid cooling frame 1, thereby improving the efficiency of heat exchange and heat dissipation. The liquid cooling frame 1 can perform heat exchange on the front and rear sides of the battery module 7.
[0025] In summary, the liquid-cooled battery module that facilitates uniform heat exchange is first based on Figure 1-Figure 5In the structure shown in the figure, the liquid coolant is respectively introduced into the liquid cooling chassis 4, the liquid cooling frame 1 and the liquid cooling clip 1001 from the liquid coolant inlet 5, the liquid inlet 802 and the liquid guide inlet 9 in sequence. After the liquid coolant is introduced, the sealing piston 6 is inserted into the interior of the liquid coolant inlet 5 to seal the liquid. Then the battery module 7 is placed in the interior of the liquid cooling frame 1 so that the bottom of the battery module 7 can contact the liquid cooling chassis 4. At the same time, the protective cover 2 is covered so that the liquid cooling clip 1001 can enter the gap between the battery modules 7. The outer wall of the liquid cooling clip 1001 contains a flame retardant thermal conductive double-sided tape 1002. The flame retardant thermal conductive double-sided tape 1002 has the characteristics of high thermal conductivity, high viscosity and low thermal impedance, and can effectively replace thermal bonding and mechanical fixing. Characteristics, can fill the uneven gap between the heat source and the battery module 7, take away the heat generated by the battery module 7, after covering the protective cover 2, and then insert the plug 11 at the bottom of the sealing cover 3 into the liquid inlet 9 on the surface of the protective cover 2, which plays a sealing role and can also effectively prevent the entry of dust. The battery module 7 transmits the heat generated by the battery module 7 to the liquid cooling frame 1 quickly through the heat conduction panel 801 on the inner wall of the liquid cooling frame 1, so that the heat can contact the liquid coolant in the liquid cooling frame 1, thereby improving the working efficiency of heat exchange and heat dissipation. The battery module 7 is surrounded by a liquid cooling frame 1, a liquid cooling chassis 4 and a liquid cooling clip 1001, which can perform heat exchange work on the surroundings of the battery module 7, making the heat exchange more uniform.
[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A liquid-cooled battery module that facilitates uniform heat exchange, comprising a liquid cooling frame (1) and a sealing piston (6), characterized in that: The upper end of the liquid cooling frame (1) is provided with a protective cover (2), and the inner wall of the protective cover (2) is installed with a heat exchange component (10) for heat conduction and heat exchange, the heat exchange component (10) comprises a liquid cooling clip (1001) and a flame retardant heat conductive double-sided adhesive tape (1002), and the outer wall of the liquid cooling clip (1001) is provided with the flame retardant heat conductive double-sided adhesive tape (1002), the bottom of the liquid cooling frame (1) is provided with a liquid cooling chassis (4), and the surface of the liquid cooling chassis (4) is provided with a liquid coolant inlet (5), and the sealing piston (6) is arranged inside the liquid coolant inlet (5).
2. A liquid-cooled battery module for uniform heat exchange according to claim 1, characterized in that: The liquid cooling clips (1001) are distributed at equal distances with respect to the inner wall of the protective cover (2), and the liquid cooling clips (1001) are connected to the flame-retardant heat-conductive double-sided adhesive tape (1002) by adhesive bonding.
3. A liquid-cooled battery module for uniform heat exchange according to claim 1, characterized in that: The shape and structure of the liquid coolant inlet (5) is consistent with the shape and structure of the sealing piston (6), and the liquid coolant inlet (5) and the sealing piston (6) are snap-fittedly connected.
4. A liquid-cooled battery module for uniform heat exchange according to claim 1, characterized in that: A battery module (7) is installed inside the liquid cooling frame (1), and an auxiliary component (8) for heat conduction is arranged inside the liquid cooling frame (1).
5. A liquid-cooled battery module for uniform heat exchange according to claim 4, characterized in that: The auxiliary component (8) comprises a heat-conducting panel (801) and a liquid inlet (802); the inner wall of the liquid cooling frame (1) is provided with the heat-conducting panel (801), and the upper end of the liquid cooling frame (1) is provided with a liquid inlet (802).
6. A liquid-cooled battery module for uniform heat exchange according to claim 5, characterized in that: The heat conduction panel (801) is connected to the liquid cooling frame (1) by adhesive bonding, and the liquid inlets (802) are symmetrically distributed about the transverse center of the liquid cooling chassis (4).
7. A liquid-cooled battery module for uniform heat exchange according to claim 1, characterized in that: A liquid inlet (9) is provided on the surface of the protective cover (2), and a sealing cover (3) is arranged on the upper end of the protective cover (2).
8. A liquid-cooled battery module for uniform heat exchange according to claim 7, characterized in that: The inner wall of the sealing cover (3) is provided with an insertion plug (11), and the number of the insertion plugs (11) is consistent with the number of the liquid guide inlets (9).