Battery module with ventilation and flame-retardant isolation plate
By introducing an isolation plate design that combines ventilation and flame retardancy into the battery module, the problem of unsatisfactory heat dissipation of the battery module in the air-cooling system is solved, and effective heat transfer and ventilation are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU XINSHENG CHUANGYING NEW ENERGY TECH CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-05-12
AI Technical Summary
Existing battery modules have difficulty achieving both ventilation and flame retardancy in air-cooled systems, resulting in unsatisfactory heat dissipation.
The design incorporates a heat dissipation and flame retardant isolation plate, which includes the isolation plate body, heat dissipation duct, aluminum foil composite film and PTFE coating. It is used for heat insulation and ventilation between batteries, and heat transfer and flame retardancy are achieved through reinforcing ribs.
It effectively blocks heat transfer from the battery module in the event of thermal runaway, while maintaining good ventilation and heat dissipation, and reducing friction and wear.
Smart Images
Figure CN224232711U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery module technology, specifically a battery module that incorporates ventilation and flame retardant isolation plate. Background Technology
[0002] A battery module is a device composed of multiple individual battery cells (single cells) combined according to specific electrical and mechanical structures to provide a greater power output. It is an important component of the battery system. The positive and negative aluminum busbars of the battery module need to be firmly fixed, and the end plate is the best fixing position. However, the end plates of the modules we generally use need to be metal end plates to fix the battery cells. Under normal circumstances, metal end plates are conductors and cannot be directly fixed to the positive and negative terminals.
[0003] Most battery modules on the market currently use only flame-retardant or ventilation solutions. It is rare to find a solution that can achieve both functions in an air-cooling system, which makes the ventilation and heat dissipation effect of the battery module less than ideal and can easily affect the use of the battery module.
[0004] Therefore, we proposed a battery module that combines ventilation and flame retardant isolation panels to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a battery module that combines ventilation and flame retardancy with a separator plate, in order to solve the problem mentioned in the background art that most battery modules only adopt either flame retardancy or ventilation, and there are very few solutions in air-cooled systems that can achieve both functions, resulting in unsatisfactory ventilation and heat dissipation effects of the battery module.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery module with ventilation and flame retardant isolation plate, including battery A and battery B, wherein an end plate is provided on the outside of battery A, and an isolation plate body is provided between battery A and battery B, and the isolation plate body is used to achieve heat insulation and ventilation between battery A and battery B;
[0007] The isolation plate body includes reinforcing ribs and heat dissipation ducts opened on the side wall of the isolation plate body. An aluminum foil composite film is also provided on the side wall of the isolation plate body. When in use, the isolation plate body is placed between battery A and battery B, which can effectively block the thermal runaway of battery A, and the heat dissipation ducts are used to transfer heat from battery A and battery B.
[0008] Preferably, the thickness of the isolation plate body is 5mm, and the isolation plate body is a combination of ABS+PC+flame retardant material.
[0009] Preferably, the surface of the separator body is uniformly coated with a PTFE coating for wear resistance, which can reduce the friction between the separator body and battery A.
[0010] Preferably, the inner wall of the heat dissipation duct is uniformly coated with a silicone resin coating, which can reduce the friction within the heat dissipation duct when airflow passes through it.
[0011] Preferably, a profile cavity is formed on the inner wall of the end plate, and an anti-slip material is provided in the profile cavity. The anti-slip material plays an anti-slip role, so that the battery A and the end plate are anti-slip.
[0012] Preferably, the end plate has a plurality of weight-reducing holes on its surface, the weight-reducing holes penetrating the end plate, and the end plate also has mounting holes on its surface.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. By setting up an end plate, battery A, an isolation plate body, and battery B, the isolation plate body is placed between battery A and battery B, which can effectively block the thermal runaway of battery A. In addition, the set heat dissipation air duct can transfer the heat of battery A and battery B. At the same time, the reinforcing ribs can realize the ventilation and heat dissipation of battery A and battery B.
[0015] 2. The use of silicone resin coating, aluminum foil composite film and PTFE coating makes the airflow smooth in the heat dissipation channel, which is conducive to ventilation. The use of aluminum foil composite film can adapt to the slight deformation generated by battery A during operation, and the use of PTFE coating reduces wear on the surface of battery A. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the isolation plate body of this utility model;
[0018] Figure 3 This is a three-dimensional structural diagram of the isolation plate body of this utility model;
[0019] Figure 4 This is a three-dimensional structural diagram of the end plate of this utility model.
[0020] In the diagram: 1. End plate; 11. Profile cavity; 12. Anti-slip material; 13. Weight reduction hole; 14. Mounting hole; 2. Battery A; 3. Isolation plate body; 31. Reinforcing rib; 32. Heat dissipation duct; 321. Silicone resin coating; 33. Aluminum foil composite film; 34. PTFE coating; 4. Battery B. Detailed Implementation
[0021] 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.
[0022] Example 1: Please refer to Figures 1-4 A battery module with ventilation and flame retardant isolation plate includes battery A2 and battery B4. An end plate 1 is provided on the outside of battery A2, and an isolation plate body 3 is provided between battery A2 and battery B4. The isolation plate body 3 is used to achieve heat insulation and ventilation between battery A2 and battery B4.
[0023] The isolation plate body 3 includes reinforcing ribs 31 and heat dissipation ducts 32 formed on the side wall of the isolation plate body 3. The reinforcing ribs 31 help to accelerate heat transfer and heat dissipation. An aluminum foil composite film 33 is also provided on the side wall of the isolation plate body 3. The aluminum foil composite film 33 has a certain degree of flexibility and can adapt to the slight deformation generated when the battery A2 is working. When in use, the isolation plate body 3 is placed between the battery A2 and the battery B4, which can effectively block the thermal runaway of the battery A2. The heat dissipation ducts 32 are used to transfer the heat from the battery A2 and the battery B4, and together with the reinforcing ribs 31, the battery A2 and the battery B4 are ventilated and flame-retardant.
[0024] The thickness of the isolation plate body 3 is 5mm. The isolation plate body 3 is made of a combination of ABS+PC+flame retardant materials, which gives the isolation plate body 3 good heat resistance and flame retardant ability, thus achieving the purpose of flame retardancy.
[0025] The surface of the separator body 3 is uniformly coated with a PTFE coating 34 for wear resistance, which can reduce the friction between the separator body 3 and the battery A2.
[0026] The inner wall of the heat dissipation duct 32 is uniformly coated with a silicone resin coating 321. When the airflow passes out from the heat dissipation duct 32, it can reduce the friction within the heat dissipation duct 32, thus keeping the airflow unobstructed.
[0027] A profile cavity 11 is provided on the inner wall of the end plate 1, and an anti-slip material 12 is provided in the profile cavity 11. The anti-slip material 12 plays an anti-slip role, so that the battery A2 and the end plate 1 are anti-slip, and the battery A2 is stable in use.
[0028] Several weight-reducing holes 13 are provided on the surface of the end plate 1. The end plate 1 itself has a certain rigidity, which can meet the usage requirements. The weight-reducing holes 13 pass through the end plate 1, which can reduce the cost of the end plate 1. Mounting holes 14 are also provided on the surface of the end plate 1.
[0029] In this embodiment: the separator body 3 is placed between battery A2 and battery B4, and the thickness of the separator body 3 is 5mm. The separator body 3 is made of a combination of ABS+PC+flame retardant material, which gives the separator body 3 good heat resistance and flame retardant ability, and can effectively block the thermal runaway of battery A2, avoiding damage to other battery structures. In conjunction with the heat dissipation duct 32, the heat of battery A2 and battery B4 can be transferred out. When the airflow is transferred out from the heat dissipation duct 32, the silicone resin coating 321 can reduce the friction in the heat dissipation duct 32, so that the airflow remains unobstructed. At the same time, the reinforcing rib 31 can realize the ventilation and heat dissipation of battery A2 and battery B4, which is conducive to ensuring the normal use of battery A2. In addition, when the separator body 3 is in use, the aluminum foil composite film 33 has a certain degree of flexibility, which can adapt to the slight deformation generated by battery A2 during operation, and the PTFE coating 34 can reduce the friction between the separator body 3 and battery A2.
[0030] Working principle: The isolation plate body 3 is placed between battery A2 and battery B4, which can effectively block the thermal runaway of battery A2. In conjunction with the heat dissipation duct 32, the heat of battery A2 and battery B4 can be transferred out. At the same time, the reinforcing rib 31 can achieve ventilation and heat dissipation of battery A2 and battery B4. When the airflow is transmitted from the heat dissipation duct 32, the silicone resin coating 321 can reduce the friction within the heat dissipation duct 32, so that the airflow remains unobstructed.
[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A battery module with both ventilation and flame retardant insulation, comprising battery A (2) and battery B (4), characterized in that: An end plate (1) is provided on the outside of the battery A (2), and an isolation plate body (3) is provided between the battery A (2) and the battery B (4). The isolation plate body (3) is used to achieve heat insulation and ventilation between the battery A (2) and the battery B (4). The isolation plate body (3) includes reinforcing ribs (31) and heat dissipation ducts (32) opened on the side wall of the isolation plate body (3). An aluminum foil composite film (33) is also provided on the side wall of the isolation plate body (3). When in use, the isolation plate body (3) is placed between battery A (2) and battery B (4), which can effectively block the thermal runaway of battery A (2).
2. A battery module with both ventilation and flame retardant isolation plate as described in claim 1, characterized in that: The thickness of the isolation plate body (3) is 5mm, and the isolation plate body (3) is a combination of ABS+PC+flame retardant material.
3. A battery module with both ventilation and flame retardant isolation plate as described in claim 2, characterized in that: The surface of the isolation plate body (3) is uniformly coated with a PTFE coating (34) for wear resistance.
4. A battery module with both ventilation and flame retardant isolation plate as described in claim 1, characterized in that: The inner wall of the heat dissipation duct (32) is uniformly coated with a silicone resin coating (321).
5. A battery module with both ventilation and flame retardant isolation plate as described in claim 1, characterized in that: The end plate (1) has a profile cavity (11) on its inner wall, and an anti-slip material (12) is provided in the profile cavity (11), which plays an anti-slip role.
6. A battery module with both ventilation and flame retardant isolation plate as described in claim 5, characterized in that: The end plate (1) has several weight-reducing holes (13) on its surface, the weight-reducing holes (13) penetrate the end plate (1), and the end plate (1) also has mounting holes (14) on its surface.