A composite material battery top cover with enhanced heat resistance

By combining a heat-resistant plate, a movable plate, and a base plate, along with heat-conducting sheets and an elastic structure, the problem of unstable heat distribution in the battery cover is solved, enabling rapid positioning and uniform heat dissipation. This improves the installation stability and safety of the battery and extends its service life.

CN224458271UActive Publication Date: 2026-07-03KUNSHAN YIBANGTAI AUTO PART MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN YIBANGTAI AUTO PART MFG CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing battery covers lack adjustable mounting structures and composite materials, resulting in unstable heat distribution and an inability to effectively block heat, thus affecting battery safety and lifespan.

Method used

The design employs a combination of heat-resistant plate, movable plate, and base plate, along with heat-conducting sheet and elastic structure, to achieve rapid positioning and secondary fixation. Through the adjustment of the movable plate and the uniform heat dissipation of the heat-conducting sheet, heat is evenly distributed and prevented from concentrating.

Benefits of technology

It improves the stability and safety of battery installation, optimizes heat dissipation, extends battery life, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224458271U_ABST
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Abstract

This utility model relates to the field of battery cover plates, and more particularly to a composite material battery top cover plate with enhanced heat resistance, comprising a heat-resistant plate, a movable plate, and a base plate. The base plate is located at the lower end of the heat-resistant plate. Mounting grooves are formed on the surfaces of the heat-resistant plate and the base plate. A guide rail is provided on one side of the mounting groove, and a movable block is located inside the guide rail. The movable plate is located inside the mounting groove. This device utilizes the composite structure design of the base plate and heat-resistant plate, combined with the adjustable and repeatedly positioned movable plate, to achieve the desired battery cover plate installation. This solves the problems of existing battery cover plates lacking an adjustable installation structure and the composite material ensuring stable heat distribution and insulation, allowing heat absorption while also providing a certain degree of heat barrier effect.
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Description

Technical Field

[0001] This utility model relates to the field of battery cover plates, and more particularly to a composite material battery top cover plate with enhanced heat resistance. Background Technology

[0002] The battery cover is a crucial component of the battery system, primarily serving to protect the internal structure, ensure safety, and enhance overall performance. It seals the battery interior, preventing electrolyte leakage and the ingress of external contaminants, while maintaining a stable internal environment. Covers are typically equipped with explosion-proof valves or safety devices to release internal pressure under abnormal pressure or temperature, preventing the risk of explosion. Furthermore, as the electrical connection point between the positive and negative electrodes, it ensures stable current transmission and supports the battery structure, enhancing its mechanical strength. Some covers also integrate temperature or voltage monitoring elements for real-time status management. Material selection must balance corrosion resistance, insulation, and lightweight properties, directly impacting battery life and safety.

[0003] A search revealed patent publication number CN223039098U, which discloses a battery cover under-cover plastic and a battery cover. The battery cover under-cover plastic is a one-piece structure composed of a first part and a second part. The first part and the second part are located at opposite ends along the length of the battery cover under-cover plastic and are connected to form an explosion-proof valve limiting groove. The first part has an injection hole, and the second part has an elastic connection structure that extends through the second part along the width of the battery cover under-cover plastic. The battery cover under-cover plastic and battery cover provided in this application can solve both the problem of shrinkage between the center distances of the two electrode posts in the lower plastic and the problem of low assembly efficiency.

[0004] While existing technologies can achieve some degree of sealing of the top of the battery during use, they have drawbacks: existing battery covers lack adjustable installation structures and composite materials to ensure stable heat distribution and isolation, so that heat can be absorbed while also having a certain blocking effect. In view of this, we propose a composite material battery top cover with enhanced heat resistance, which solves the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a composite material battery top cover with enhanced heat resistance.

[0006] The technical solution of this utility model is as follows: A composite material battery top cover with enhanced heat resistance, comprising a heat-resistant plate, a movable plate and a bottom plate. The bottom plate is provided at the lower end of the heat-resistant plate. The heat-resistant plate and the bottom plate are provided with mounting grooves. A guide rail is provided on one side of the mounting groove. A movable block is provided inside the guide rail. The movable plate is provided inside the mounting groove.

[0007] When using this device, the base plate can be initially pre-fixed to the battery surface by inserting screws into the positioning holes. Then, the moving plate is manually driven to move left and right. After the position is fixed, the screws are pressed down into the second through hole. Then, the moving plate is moved downward so that the limiting block is inserted into the limiting groove to achieve fixation. Then, the second through hole is used for secondary positioning. The heat-conducting sheet can transfer heat to the heat-resistant plate, so that the heat is evenly distributed on the base plate and the heat-resistant plate, and the heat will not spread excessively from the upper part of the heat-resistant plate. This device achieves heat resistance by using materials that meet the requirements, and with the moving plate with an elastic structure to achieve secondary positioning, it has high practicality.

[0008] Preferably, the inner wall of the mounting groove is provided with limiting grooves on both sides, and the lower end of the movable plate is provided with a limiting block. The limiting block is inserted into the limiting groove. The insertion design of the limiting groove and the limiting block ensures that the movable plate will not be displaced after it is fixed, improves the reliability of the structure, prevents loosening, and ensures the stability of long-term use.

[0009] Preferably, a slot is provided between the guide rail and the mounting groove, one side of the moving block is inserted into the slot, and a spring is provided at the lower end of the side extending beyond the slot. The bottom end of the spring is fixedly connected to the upper end of the moving plate. The guide rail and the moving block cooperate with the spring structure. In the normal state of the spring, the limiting block can be pulled out of the limiting groove, which facilitates the left and right movement of the moving plate.

[0010] Preferably, the heat-resistant plate and the base plate have a through hole in the middle. The through hole facilitates heat flow, avoids local overheating, reduces overall weight, improves heat dissipation efficiency, and reduces material costs.

[0011] Preferably, the movable plate has a second through hole in the middle, which cooperates with the screw to achieve secondary positioning, further strengthening the installation structure, improving positioning accuracy, and preventing misalignment.

[0012] Preferably, the base plate and the heat-resistant plate are provided with positioning holes at the four corners. The positioning holes facilitate the quick pre-fixation of the base plate, save installation time, simplify the initial installation steps, and improve efficiency.

[0013] Preferably, the lower end of the base plate is provided with heat-conducting sheets arranged in a square array. The square array of heat-conducting sheets maximizes the heat conduction area, dissipates heat evenly, optimizes thermal management, and avoids battery performance degradation.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model, through the combined design of a heat-resistant plate, a movable plate, and a base plate, achieves rapid positioning and secondary fixation of the battery during installation, improving installation efficiency and stability. The heat-conducting plate effectively disperses heat, prevents heat concentration, enhances the heat resistance and safety of the device, strengthens installation stability, optimizes heat dissipation performance, and extends battery life.

[0016] Second, based on the first beneficial effect, this device achieves heat resistance, rapid positioning, and secondary fixation functions through composite materials and elastic structural design. The adjustable effect of the back-and-forth movement of the movable plate enables adaptable secondary fixation, making it suitable for high-heat-generating battery scenarios, extending equipment lifespan and reducing maintenance costs.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a bottom view of the present invention;

[0020] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the B-structure.

[0022] Figure label:

[0023] 1. Heat-resistant plate; 2. Through hole one; 3. Moving block; 4. Guide rail; 5. Slot; 6. Moving plate; 7. Mounting slot; 8. Base plate; 9. Positioning hole; 10. Through hole two; 11. Heat-conducting sheet; 12. Spring; 13. Limiting block; 14. Limiting groove. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-4 As shown, this embodiment is a composite material battery top cover plate with enhanced heat resistance, including a heat-resistant plate 1, a movable plate 6 and a bottom plate 8. The bottom plate 8 is provided at the lower end of the heat-resistant plate 1. The surface of the heat-resistant plate 1 and the bottom plate 8 are provided with mounting grooves 7. A guide rail 4 is provided on one side of the mounting groove 7. A movable block 3 is provided inside the guide rail 4. The movable plate 6 is provided inside the mounting groove 7.

[0030] When using this device, the base plate 8 can be initially pre-fixed to the battery surface by inserting screws into the positioning holes 9. Then, the moving plate 6 can be manually driven to move left and right. After the position is fixed, the screws are pressed down into the through holes 10. Then, the moving plate 6 is moved downward so that the limiting block 13 is inserted into the limiting groove 14 to achieve fixation. Then, the through holes 10 are used for secondary positioning. The heat-conducting sheet 11 can transfer heat to the heat-resistant plate 1, so that the heat is evenly distributed on the base plate 8 and the heat-resistant plate 1, and the heat will not spread excessively from the top of the heat-resistant plate 1. This device achieves heat resistance by using materials that meet the requirements, and it is combined with the moving plate 6 with an elastic structure to achieve secondary positioning, which has high practicality.

[0031] The inner wall of the mounting groove 7 is provided with limiting grooves 14 on both sides, and the lower end of the movable plate 6 is provided with a limiting block 13. The limiting block 13 is inserted into the limiting groove 14. The insertion design of the limiting groove 14 and the limiting block 13 ensures that the movable plate 6 will not be displaced after it is fixed, improves the reliability of the structure, prevents loosening, and ensures the stability of long-term use.

[0032] Example 2

[0033] Please see Figures 1-4As shown, this embodiment, based on embodiment 1, further includes: a slot 5 is provided between the guide rail 4 and the mounting groove 7; one side of the moving block 3 is inserted into the slot 5; and a spring 12 is provided at the lower end of the side extending beyond the slot 5; the bottom end of the spring 12 is fixedly connected to the upper end of the moving plate 6; the guide rail 4 and the moving block 3 cooperate with the spring 12 structure; under normal conditions, the spring 12 can pull the limiting block 13 out of the limiting groove 14, which facilitates the left and right movement of the moving plate 6, adapts to different installation requirements, provides flexibility, simplifies the installation process, and adapts to diverse scenarios.

[0034] The heat-resistant plate 1 and the base plate 8 have through holes 2 in the middle. The through holes 2 facilitate heat flow, prevent local overheating, reduce overall weight, improve heat dissipation efficiency, and reduce material costs.

[0035] The movable plate 6 has a through hole 2 10 in the middle. The through hole 2 10 cooperates with the screw to achieve secondary positioning, further strengthen the installation structure, improve positioning accuracy, and prevent misalignment.

[0036] The base plate 8 and the heat-resistant plate 1 are provided with positioning holes 9 at the four corners. The positioning holes 9 facilitate the quick pre-fixation of the base plate 8, save installation time, simplify the initial installation steps, and improve efficiency.

[0037] The bottom of the base plate 8 is provided with heat-conducting plates 11 arranged in a square array. The square array of heat-conducting plates 11 maximizes the heat conduction area, dissipates heat evenly, optimizes thermal management, and avoids battery performance degradation.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A composite battery top cover plate with enhanced heat resistance, comprising a heat resistant plate (1), a moving plate (6) and a bottom plate (8), characterized in that: The heat-resistant plate (1) has a base plate (8) at its lower end. The heat-resistant plate (1) and the base plate (8) have mounting grooves (7) on their surfaces. A guide rail (4) is provided on one side of the mounting groove (7). A moving block (3) is provided inside the guide rail (4). A moving plate (6) is provided inside the mounting groove (7).

2. The composite battery top cover plate with enhanced heat resistance according to claim 1, characterized in that: The mounting groove (7) has limiting grooves (14) on both sides of its inner wall, and the moving plate (6) has a limiting block (13) at its lower end. The limiting block (13) is inserted into the limiting groove (14).

3. The composite battery top cover plate with enhanced heat resistance according to claim 1, wherein: A slot (5) is provided between the guide rail (4) and the mounting groove (7). One side of the moving block (3) is inserted into the slot (5), and a spring (12) is provided at the lower end of the side extending beyond the slot (5). The bottom end of the spring (12) is fixedly connected to the upper end of the moving plate (6).

4. The composite material battery top cover with enhanced heat resistance according to claim 3, characterized in that: The heat-resistant plate (1) and the base plate (8) are provided with a through hole (2) designed to penetrate through.

5. The composite battery top cover plate with enhanced heat resistance according to claim 1, wherein: The movable plate (6) has a through hole 2 (10) in the middle.

6. The composite battery top cover plate with enhanced heat resistance according to claim 1, wherein: The base plate (8) and the heat-resistant plate (1) are provided with positioning holes (9) at the four corners.

7. The composite battery top cover plate with enhanced heat resistance according to claim 1, wherein: The bottom of the base plate (8) is provided with heat-conducting plates (11) arranged in a square array.