Battery module heat dissipation structure

Abstract

The utility model discloses a battery module heat dissipation structure which comprises a battery module, two side liquid cooling plates, a top liquid cooling plate and a bottom liquid cooling plate are respectively fixed on the outer side surface of the battery module, and the two side liquid cooling plates are respectively arranged on two sides of the battery module. The interiors of the side liquid cooling plates, the top liquid cooling plate and the bottom liquid cooling plate are all of hollow structures, connecting pipes for introducing cooling liquid are arranged outside the side liquid cooling plates, the bottom liquid cooling plate is arranged at the bottom of the battery module, the top liquid cooling plate is arranged at the upper part of the battery module, the battery module is connected with the bottom liquid cooling plate through screws, and the bottom liquid cooling plate is connected with the top liquid cooling plate through screws. The side liquid cooling plates are connected with the bottom liquid cooling plate and the top liquid cooling plate through screws, the heat dissipation structure of the battery module can be suitable for the environment with large heat productivity, high temperature or high heat dissipation requirements of the battery module, and the heat dissipation capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery heat dissipation, in particular to a battery module heat dissipation structure. Background Art

[0002] With the development of the new energy industry, various batteries developed to meet various needs have different usage characteristics. In many cases, the temperature rise of the battery is a difficult problem to solve.

[0003] Battery heat dissipation is usually passive, which can easily lead to dangers in high-temperature environments. Active heat dissipation mainly relies on air blowing, but it still cannot meet the heat dissipation requirements in environments with high heat generation, high temperature environments, or high heat dissipation requirements, thereby affecting the service life of the battery module and posing a safety hazard. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a battery module heat dissipation structure that can be applied to environments with large heat generation, high temperature environments or high heat dissipation requirements of battery modules, improve the heat dissipation capacity, and effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a battery module heat dissipation structure, comprising a battery module, wherein two side liquid cooling plates, a top liquid cooling plate and a bottom liquid cooling plate are fixed to the outer sides of the battery module, respectively. The two side liquid cooling plates are respectively arranged on both sides of the battery module, and the interiors of the side liquid cooling plates, the top liquid cooling plates and the bottom liquid cooling plates are all hollow structures and their outsides are all provided with connecting pipes for passing cooling liquid, the bottom liquid cooling plate is arranged at the bottom of the battery module, and the top liquid cooling plate is arranged at the upper part of the battery module, the battery module is connected to the bottom liquid cooling plate by screws, the side liquid cooling plates are respectively connected to the bottom liquid cooling plate and the top liquid cooling plate by screws, and the two ends of the top liquid cooling plate are respectively connected to the two side liquid cooling plates by screws, and thermal conductive gel is filled between the battery module and the side liquid cooling plates, the top liquid cooling plate and the bottom liquid cooling plate.

[0006] As a preferred technical solution of the present invention, the surface of the side liquid cooling plate is insulated.

[0007] As a preferred technical solution of the present invention, the outer side of the side liquid cooling plate is covered with an insulating plate, the outer side of the insulating plate is provided with a conductive copper busbar, and the conductive copper busbar, the insulating plate and the side liquid cooling plate are connected by nylon screws.

[0008] As a preferred technical solution of the present invention, the insulating plate is firmly adhered to the side liquid cooling plate by double-sided tape.

[0009] As a preferred technical solution of the present invention, corresponding strip holes are provided on the side liquid cooling plate, the insulating plate and the conductive copper busbar, and the tabs on the battery module pass through the strip holes and are welded to the conductive copper busbar.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the heat dissipation structure of the battery module is reasonably designed and ingeniously conceived, with the bottom liquid cooling plate used for heat dissipation and position limiting at the bottom of the battery module, the side liquid cooling plates used for side heat dissipation and structural support of the battery module, the insulating plates used for insulation between the side liquid cooling plates and the battery module, the thermal conductive gel coating the entire battery module for heat dissipation of the battery module and improving the contact conditions of the liquid cooling plates, the top liquid cooling plate used for heat dissipation at the top of the battery module, and coolant is simultaneously introduced into the bottom liquid cooling plate, the side liquid cooling plate and the top liquid cooling plate to improve the heat dissipation capacity, which is suitable for environments with high heat generation of the battery module, high temperature environment or high heat dissipation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is an explosion diagram of the utility model.

[0013] In the figure: 1 bottom liquid cooling plate, 2 battery module, 3 top liquid cooling plate, 4 side liquid cooling plate, 5 insulation plate, 6 conductive copper busbar, 7 nylon screw. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiment of the present invention to clearly and completely describe the technical solutions in the embodiment of the present invention. Obviously, the embodiment described is only a part of the embodiment of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is Figure 1 Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0015] See also Figure 1-2 The utility model provides a technical solution: a battery module heat dissipation structure, including a battery module 2, two side liquid cooling plates 4, a top liquid cooling plate 3 and a bottom liquid cooling plate 1 are fixed to the outer side of the battery module 2, the top liquid cooling plate 3 is arranged on the upper part of the battery module 2, the two side liquid cooling plates 4 are respectively arranged on both sides of the battery module 2, and the bottom liquid cooling plate 1 is arranged at the bottom of the battery module 2. The interiors of the side liquid cooling plates 4, the top liquid cooling plates 3 and the bottom liquid cooling plates 1 are all hollow structures and their exteriors are all provided with pipes for passing coolant;

[0016] The battery module 2 is connected to the bottom liquid cooling plate 1 by screws, and the side liquid cooling plates 4 are connected to the bottom liquid cooling plate 1 and the top liquid cooling plate 3 by screws respectively, so as to limit the battery module 2 and dissipate heat to it. The two ends of the top liquid cooling plate 3 are connected to the two side liquid cooling plates 4 by screws respectively, so that the entire heat dissipation structure is stable and easy to disassemble. Thermal conductive gel is filled between the battery module 2 and the side liquid cooling plates 4, the top liquid cooling plate 3 and the bottom liquid cooling plate 1 to improve the contact conditions between the battery module 2 and the side liquid cooling plates 4, the top liquid cooling plate 3 and the bottom liquid cooling plate 1, thereby improving the heat dissipation capacity. At the same time, the coolant circulating inside the side liquid cooling plates 4, the top liquid cooling plate 3 and the bottom liquid cooling plate 1 can achieve high-efficiency heat dissipation, which is suitable for environments with large heat generation of battery modules, high temperature environments or high heat dissipation requirements.

[0017] Furthermore, the surface of the side liquid cooling plate 4 is subjected to insulation treatment, including but not limited to surface hard anodizing, plastic spraying, etc., to prevent leakage.

[0018] Furthermore, the outer side surface of the side liquid cooling plate 4 is covered with an insulating plate 5, and the outer side surface of the insulating plate 5 is provided with a conductive copper busbar 6. The conductive copper busbar 6, the insulating plate 5 and the side liquid cooling plate 4 are connected by nylon screws 7. After installation, the insulating plate 5 is in contact with the shoulder plane of the battery module 2 to play an insulating role.

[0019] Furthermore, in order to facilitate the installation of the insulating plate 5 , the insulating plate 5 is firmly adhered to the side liquid cooling plate 4 by double-sided tape.

[0020] Furthermore, in order to facilitate the fixation of the tabs on the battery module 2, corresponding strip holes are provided on the side liquid cooling plate 4, the insulating plate 5 and the conductive copper bus 6. The tabs on the battery module 2 pass through the strip holes and are welded to the conductive copper bus 6.

[0021] During use: the battery module 2 is fixed on the bottom liquid cooling plate 1, and thermal conductive gel is filled between the battery module 2 and the bottom liquid cooling plate 1; after the surface of the side liquid cooling plate 4 is insulated, an insulating plate 5 is pasted, and the insulating plate 5 is fitted with the shoulder plane of the battery module 2, and the gap is filled with thermal conductive gel; threaded holes are opened at appropriate positions on the side liquid cooling plate 4, and nylon screws 7 are used to fix the conductive copper bus 6; threaded holes are opened on the sides of the bottom liquid cooling plate 1 and the top liquid cooling plate 3 for fixing the side liquid cooling plate 4. Before assembling the top liquid cooling plate 3, the upper surface of the battery module 2 is coated with thermal conductive gel. After all the assembly is completed, the upper pipes of the side liquid cooling plate 4, the top liquid cooling plate 3 and the bottom liquid cooling plate 1 are connected respectively through conduits, and coolant is introduced to remove the heat generated by the battery module 2 during operation. The combination of coolant and thermal conductive gel achieves efficient heat dissipation.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery module heat dissipation structure, comprising a battery module (2), characterized in that: Two side liquid cooling plates (4), a top liquid cooling plate (3) and a bottom liquid cooling plate (1) are fixed to the outer side of the battery module (2), respectively. The two side liquid cooling plates (4) are respectively arranged on both sides of the battery module (2). The interiors of the side liquid cooling plates (4), the top liquid cooling plate (3) and the bottom liquid cooling plate (1) are all hollow structures and their exteriors are all provided with pipes for passing cooling liquid. The bottom liquid cooling plate (1) is arranged at the bottom of the battery module (2), and the top liquid cooling plate (3) is arranged at the top of the battery module (2). The battery module (2) is connected to the bottom liquid cooling plate (1) by screws. The side liquid cooling plates (4) are respectively connected to the bottom liquid cooling plate (1) and the top liquid cooling plate (3) by screws. The two ends of the top liquid cooling plate (3) are respectively connected to the two side liquid cooling plates (4) by screws. Thermal conductive gel is filled between the battery module (2) and the side liquid cooling plates (4), the top liquid cooling plate (3) and the bottom liquid cooling plate (1).

2. The battery module heat dissipation structure according to claim 1, characterized in that: The surface of the side liquid cooling plate (4) is subjected to insulation treatment.

3. A battery module heat dissipation structure according to claim 1 or 2, characterized in that: The outer side surface of the side liquid cooling plate (4) is covered with an insulating plate (5), and the outer side surface of the insulating plate (5) is provided with a conductive copper busbar (6). The conductive copper busbar (6), the insulating plate (5) and the side liquid cooling plate (4) are connected by nylon screws (7).

4. The battery module heat dissipation structure according to claim 3, characterized in that: The insulating plate (5) is firmly adhered to the side liquid cooling plate (4) by means of double-sided adhesive tape.

5. The battery module heat dissipation structure according to claim 3, characterized in that: The side liquid cooling plate (4), the insulating plate (5) and the conductive copper busbar (6) are all provided with corresponding strip holes, and the tabs on the battery module (2) pass through the strip holes and are welded to the conductive copper busbar (6).

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