Uniform heat dissipation lithium battery module

By introducing a heat dissipation mechanism and a pressing mechanism into the lithium battery module, the problems of low heat dissipation efficiency and inconvenient pre-positioning pressing are solved, achieving efficient heat dissipation and convenient maintenance and replacement.

CN224537249UActive Publication Date: 2026-07-21ANHUI DUOKUN NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI DUOKUN NEW ENERGY TECH CO LTD
Filing Date
2025-06-20
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing lithium battery modules suffer from poor heat dissipation efficiency and inconvenient pre-positioning and holding, leading to increased temperature and low maintenance and replacement efficiency.

Method used

A lithium battery module including a heat dissipation mechanism and a pressing mechanism was designed. It adopts side and bottom heat dissipation fins, delivery pipes, pressure plates and elastic components to achieve uniform heat dissipation and rapid pre-positioning pressing.

Benefits of technology

It improves the heat dissipation efficiency of lithium battery modules, simplifies maintenance and replacement operations, and enhances work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of uniform heat dissipation lithium battery module, including shell;The inner wall of the shell is provided with the heat dissipation mechanism for the uniform heat dissipation of lithium battery module, and the inner side wall of shell is provided with the pressure holding mechanism for the prepositioning of lithium battery module;Heat dissipation mechanism includes;Heat exhaust component, setting in the inner wall of shell for uniform heat exhaust;The utility model is cooperatively arranged by the pressure holding mechanism, can preposition and pressure holding fixed operation to the lithium battery module of uniform heat dissipation, it is not only easy to operate, and improve the efficiency when working, facilitate subsequent overhaul and replacement operation, utilize rotatable pressing plate to realize pressure holding and release pressure holding state, and when pressure holding positioning, it can be connected by the elastic pushing of spring to make that plug and perforation are adapted, further reach the required purpose, by inwardly pushing and pressing pusher, this state can be released and conveniently adapted between second mounting plate.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery module technology, specifically to a uniform heat dissipation lithium battery module. Background Technology

[0002] A lithium battery module is an intermediate product that combines multiple lithium-ion cells in series and parallel and integrates monitoring and management devices. It is between a single cell and a complete battery pack and must meet core requirements such as mechanical strength, electrical performance, thermal management and safety protection.

[0003] Existing lithium battery packs are often installed in protective cases to protect them. However, these cases result in poor heat dissipation. Furthermore, existing lithium battery packs generate a lot of heat during use, and since they lack specific heat dissipation devices, prolonged use can lead to increased battery temperature, reduced battery life, and potentially even explosion.

[0004] To address the aforementioned technical issues, CN220963483U discloses a marine lithium battery module with uniform heat dissipation. A drive component drives a rotating shaft and a cooling fan to rotate. The rotation of the cooling fan causes air to flow from the carrier box assembly to the inside of the battery module box. The cooling fan also causes air inside the battery module box to be discharged to the outside of the battery module box through vents. A rubber strip is used to create a gap between the lithium battery body and the inner wall of the carrier box assembly. The air flow inside the carrier box assembly and the battery module box dissipates the heat on the surface of the lithium battery body, thus achieving uniform heat dissipation for the lithium battery body.

[0005] The existing lithium battery modules with uniform heat dissipation still have the following shortcomings: in actual use, it is impossible to quickly pre-position and hold the lithium battery; the use of bolts to connect and fix the two ends of the pressure strip to the lithium battery shell is inconvenient and inefficient when maintenance or replacement is required. Utility Model Content

[0006] The purpose of this invention is to provide a uniform heat dissipation lithium battery module that enables convenient and rapid pressing and pre-positioning of the lithium battery, which not only facilitates operation but also improves efficiency during use, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a uniform heat dissipation lithium battery module, including a housing;

[0008] The inner wall of the outer casing is provided with a heat dissipation mechanism for uniform heat dissipation of the lithium battery module, and the inner side wall of the outer casing is provided with a pressing mechanism for pre-positioning the lithium battery module.

[0009] The heat dissipation mechanism includes:

[0010] A heat dissipation assembly is disposed on the inner wall of the outer casing for uniform heat dissipation;

[0011] A bottom protection component is provided at the bottom of the housing to support and protect the lithium battery module;

[0012] The pressing mechanism includes:

[0013] A connecting component is disposed on the inner sidewall of the housing, and the inner sidewall of the housing is further provided with a bearing component for adapting the connecting component;

[0014] A support component is disposed inside the connecting component, and an elastic component for locking the lithium battery is disposed on the outside of the support component.

[0015] Preferably, the heat dissipation assembly includes;

[0016] Side heat dissipation fins are installed on the inner wall of the housing, and a heat dissipation pipe is installed inside the housing.

[0017] Preferably, the bottom protection component includes;

[0018] The bottom heat dissipation fins are installed on the inner side wall of the outer casing, and a bottom shield plate is fixedly installed on the inner side wall of the bottom of the outer casing.

[0019] Preferably, the connection component includes;

[0020] A first mounting plate is installed on the inner wall of the housing, and a pressure plate is rotatably connected to the inner wall of the top of the first mounting plate to facilitate pressing the lithium battery module.

[0021] Preferably, the carrier component includes;

[0022] The second mounting plate is fixedly installed on the inner side wall of the outer casing, and the inner side wall of the second mounting plate has a through hole.

[0023] Preferably, the support component includes;

[0024] A circular plate is installed on the inner wall of the pressure plate, and telescopic rods are fixedly installed on both sides of the circular plate.

[0025] Preferably, the elastic component includes;

[0026] A spring is located on the outside of the telescopic rod and fixed to both sides of the circular plate. A lever plate and an insert block fixed on the outside of the lever plate are fixedly installed on the outer ends of both the spring and the telescopic rod. A limiting hole adapted to slide with the lever plate is provided on the pressure plate.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] This utility model, through the coordinated setting of the pressing mechanism, can perform pre-positioning and pressing and fixing operations on lithium battery modules with uniform heat dissipation. It is not only easy to operate, but also improves the efficiency of work and facilitates subsequent maintenance and replacement operations. The rotatable pressure plate is used to achieve the pressing and releasing state. In addition, during pressing and positioning, the elasticity of the spring can push the plug and the through hole to fit and connect, further achieving the desired purpose. This state can be released by pushing the pull plate inward and facilitating the adaptation with the second mounting plate.

[0029] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0032] Figure 3 This is a schematic diagram of the vertical structure of the pressure plate of this utility model;

[0033] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure in section A.

[0034] In the diagram: 1. Outer shell; 2. Heat dissipation mechanism; 21. Side heat dissipation fins; 22. Bottom heat dissipation fins; 23. Conveyor pipe; 24. Bottom shield plate; 3. Pressing mechanism; 31. First mounting plate; 32. Pressure plate; 33. Second mounting plate; 34. Perforation; 35. Spring; 36. Insert block; 37. Pulley plate; 38. Limiting hole; 39. Circular plate; 310. Telescopic rod. Detailed Implementation

[0035] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] This utility model provides a uniform heat dissipation lithium battery module, including a housing 1;

[0037] The inner wall of the outer casing 1 is provided with a heat dissipation mechanism 2 for uniform heat dissipation of the lithium battery module, and the inner side wall of the outer casing 1 is provided with a pressing mechanism 3 for pre-positioning the lithium battery module.

[0038] The heat dissipation mechanism 2 includes:

[0039] A heat dissipation component is disposed on the inner wall of the outer casing 1 for uniform heat dissipation;

[0040] Bottom protection component, located at the bottom of housing 1, is used to support and protect the lithium battery module;

[0041] The pressure holding mechanism 3 includes;

[0042] A connecting component is disposed on the inner side wall of the housing 1, and the inner side wall of the housing 1 is also provided with a bearing component for adapting the connecting component;

[0043] A support component is located inside the connecting component, and an elastic component for locking the lithium battery is provided on the outside of the support component.

[0044] in;

[0045] like Figure 2 As shown, the heat dissipation assembly includes;

[0046] Side heat dissipation fins 21 are installed on the inner wall of the housing 1. The housing 1 is equipped with a heat dissipation pipe 23. The side heat dissipation fins 21 can limit the end of the lithium battery in the lithium battery module and also assist in heat dissipation at the end. The heat dissipation pipe 23 is arranged in a serpentine shape, which is conducive to uniform heat dissipation and can also remove the heat generated by the lithium battery to reduce the temperature of the bottom and sides.

[0047] The delivery pipe 23 can be selected for cold air delivery or cold liquid delivery according to actual needs. One end is the inlet and the other end is the outlet. It is connected to an external container and a power pump, so as to realize the circulation operation.

[0048] in addition;

[0049] like Figure 2 As shown, the bottom protection component includes;

[0050] The bottom heat dissipation fins 22 are installed on the inner side wall of the outer casing 1. The bottom protective plate 24 is fixedly installed on the inner side wall of the bottom of the outer casing 1. The bottom heat dissipation fins 22 mainly support the lithium battery and can also assist in the bottom heat dissipation operation. In addition, the bottom protective plate 24 realizes the bottom protection and shielding operation.

[0051] During uniform heat dissipation, the bottom heat dissipation fins 22 and the side heat dissipation fins 21 will respectively assist in heat dissipation on the bottom and end surfaces. The cold air or cool liquid delivered through the delivery pipe 23 can effectively improve the heat dissipation effect and efficiency, and can remove heat, so that the space where the lithium battery is located can maintain the preset and required temperature, and avoid the lithium battery from being damaged by high temperature.

[0052] Preferred;

[0053] like Figure 3 As shown, the connecting components include;

[0054] The first mounting plate 31 is installed on the inner side wall of the outer casing 1. The inner side wall of the top of the first mounting plate 31 is rotatably connected to a pressure plate 32 for pressing the lithium battery module. The first mounting plate 31 can rotate and support the pressure plate 32.

[0055] further;

[0056] like Figure 3 As shown, the carrier component includes;

[0057] The second mounting plate 33 is fixedly installed on the inner side wall of the outer casing 1. The inner side wall of the second mounting plate 33 has a through hole 34. The second mounting plate 33 can support the end of the pressure plate 32 away from the first mounting plate 31. The through hole 34 is mainly used to fit the plug 36.

[0058] Going a step further;

[0059] like Figure 4 As shown, the supporting components include;

[0060] A circular plate 39 is installed on the inner wall of the pressure plate 32. Telescopic rods 310 are fixedly installed on both sides of the circular plate 39. The circular plate 39 can support the telescopic rods 310 and the spring 35 and connect and fix them together.

[0061] It is worth explaining;

[0062] like Figure 4 As shown, the elastic component includes;

[0063] Spring 35 is located on the outside of telescopic rod 310 and fixed to both sides of circular plate 39. Both spring 35 and telescopic rod 310 are fixedly installed with lever plate 37 and insert block 36 fixed on the outside of lever plate 37. Limiting hole 38 is provided on pressure plate 32 to slide and adapt to lever plate 37.

[0064] The spring 35 can complete the pre-positioning operation by elastically pushing, while the dial 37 can adjust the position of the insert 36 as required, thereby achieving insertion positioning and release positioning operations.

[0065] When it is necessary to press and fix the lithium battery, simply rotate the pressure plate 32 and then press the lever 37 inward. When the lever 37 moves, it will press the telescopic rod 310 and the spring 35. The lever 37 will slide inside the limiting hole 38 until the insert block 36 is located inside the pressure plate 32. Then, it can be continuously rotated and placed on the inner wall of the second mounting plate 33. Then, the pressing force is released, and the insert block 36 is pushed into the through hole 34 according to the elasticity to achieve the required positioning and pressing and fixing purpose.

[0066] When removing the lithium battery for inspection or replacement, the operation can be reversed as described above. First, disengage the insert 36 from the inside of the perforation 34, and then rotate the pressure plate 32.

[0067] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform heat dissipation lithium battery module, characterized in that, Includes the outer casing (1); The inner wall of the outer shell (1) is provided with a heat dissipation mechanism (2) for uniform heat dissipation of the lithium battery module, and the inner side wall of the outer shell (1) is provided with a pressing mechanism (3) for pre-positioning the lithium battery module. The heat dissipation mechanism (2) includes: A heat dissipation assembly is disposed on the inner wall of the outer casing (1) for uniform heat dissipation; A bottom protection component is provided at the bottom of the housing (1) to support and protect the lithium battery module; The pressing mechanism (3) includes: A connecting component is disposed on the inner sidewall of the housing (1), and the inner sidewall of the housing (1) is further provided with a bearing component for adapting the connecting component; A support component is disposed inside the connecting component, and an elastic component for locking the lithium battery is disposed on the outside of the support component.

2. The uniform heat dissipation lithium battery module according to claim 1, characterized in that: The heat dissipation assembly includes; Side heat dissipation fins (21) are installed on the inner wall of the housing (1), and a heat dissipation pipe (23) is installed inside the housing (1).

3. The uniform heat dissipation lithium battery module according to claim 2, characterized in that: The bottom protection component includes; The bottom heat dissipation fins (22) are installed on the inner side wall of the outer shell (1), and the bottom protective plate (24) is fixedly installed on the inner side wall of the bottom of the outer shell (1).

4. The uniform heat dissipation lithium battery module according to claim 1, characterized in that: The connection component includes; A first mounting plate (31) is mounted on the inner wall of the outer casing (1), and a pressure plate (32) is rotatably connected to the inner wall of the top of the first mounting plate (31) to facilitate pressing the lithium battery module.

5. A uniform heat dissipation lithium battery module according to claim 4, characterized in that: The carrier component includes; The second mounting plate (33) is fixedly installed on the inner side wall of the outer shell (1), and the inner side wall of the second mounting plate (33) is provided with a through hole (34).

6. A uniform heat dissipation lithium battery module according to claim 5, characterized in that: The support components include; A circular plate (39) is installed on the inner wall of the pressure plate (32), and telescopic rods (310) are fixedly installed on both sides of the circular plate (39).

7. A uniform heat dissipation lithium battery module according to claim 6, characterized in that: The elastic component includes; The spring (35) is located on the outside of the telescopic rod (310) and fixed to both sides of the circular plate (39). The outer ends of the spring (35) and the telescopic rod (310) are fixedly equipped with a lever plate (37) and an insert block (36) fixed on the outside of the lever plate (37). The pressure plate (32) is provided with a limiting hole (38) that is adapted to slide with the lever plate (37).