Battery cell protective cover of battery pack
By designing a battery-pack cell protection cover with a tabletop, raised cone surface, thinned indentation and electrode edge, the problems of low strength and insufficient explosion-proof capacity in the prior art are solved, and higher explosion-proof performance and electrode protection effect are achieved.
Patent Information
- Application Number
- CN202420803506.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The existing battery pack battery cell protection cover lacks quality and is low in strength, which cannot effectively prevent damage to the electrode assembly by impact, resulting in a possible short circuit with the inner surface of the case, which will lead to abnormal operation of the battery cell.
A battery-pack battery cell protection cover is designed, including the cover body, the detent, the raised cone surface, the thinned indentation (explosion-proof line), the perforation and electrode edges. The strength is increased through the design of the detent, and the explosion-proof performance and electrode connection stability are improved through the setting of the explosion-proof line and the electrode edges.
This design improves the explosion-proof capability and overall strength of the battery pack cell protection cover, ensuring that the electrode assembly can be effectively protected in the case of impact, avoiding short circuits and abnormal working conditions.
Smart Images
Figure CN222966269U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery processing, and particularly relates to a protection cover for battery pack battery cores. Background Art
[0002] When the battery pack battery core is impacted, the impact is transmitted to the electrode assembly inside the battery cell, which may damage the electrode assembly. In addition, in the case of damage to the electrode assembly, it may cause a short circuit with the inner surface of the housing, thereby causing abnormal operation of the battery cell. It shows that the quality of the protection cover for battery pack battery cores in the prior art is lacking and the strength is low. In view of this, this invention creation is specially applied for. Content of the Utility Model
[0003] In order to solve the above problems in the prior art, the utility model provides a protection cover for battery pack battery cores, which can improve the above deficiencies.
[0004] The utility model relates to a protection cover for battery pack battery cores, including a cover plate body. A sunken platform is arranged in the middle of the cover plate body. The sunken platform is sunken downward. The sunken platform has a bottom plate and a cylindrical side wall. A raised conical surface is formed by protruding upward on the bottom plate of the sunken platform. A thinning indentation is arranged on the raised conical surface. The thinning indentation forms an explosion-proof line of the battery. The cover plate body is symmetrically provided with through holes on both sides of the sunken platform. The inner wall of the through hole has an outward protruding ridge.
[0005] Further, electrode ridges are arranged on the through holes. Both ends of the electrode ridges turn outwards towards the bottom surface and the top surface of the cover plate body.
[0006] Further, the thinning indentation on the raised conical surface is divided into a first explosion-proof line located on the outer side surface of the conical surface and a second explosion-proof line located on the inner side of the conical surface.
[0007] Further, the first explosion-proof line and the second explosion-proof line are designed to be continuous or discontinuous.
[0008] Further, circumferentially distributed reinforcing ribs are arranged on the bottom surface of the cover plate.
[0009] The cover plate designed by the utility model has explosion-proof ability, the overall quality is light, and the designed sunken platform is convenient for processing. Description of the Drawings
[0010] Figure 1 It is a schematic diagram of the utility model.
[0011] Illustration: 1 cover plate body, 2 electrode ridges, 3 through holes, 4 sunken platform, 5 arched surface, 6 second explosion-proof line, 7 first explosion-proof line. Detailed Embodiment
[0012] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0013] As Figure 1 shown, the present utility model relates to a battery pack cell protection cover, including a cover plate body 1. A sunken platform 4 is provided in the middle of the cover plate body. The sunken platform is recessed downward. The sunken platform has a bottom plate and a cylindrical side wall. A raised conical surface 5 is formed by protruding upward on the bottom plate of the sunken platform. A thinning indentation is provided on the raised conical surface. The thinning indentation forms an explosion-proof line of the battery. The cover plate body is symmetrically provided with perforations 3 on both sides of the sunken platform. The inner wall of the perforation has an outwardly protruding ridge.
[0014] Furthermore, electrode ridges 2 are provided on the perforations. Both ends of the electrode ridges are turned outwards towards the bottom surface and the top surface of the cover plate body.
[0015] Furthermore, the thinning indentation of the raised conical surface is divided into a first explosion-proof line 7 located on the outer side surface of the conical surface and a second explosion-proof line 6 located on the inner side of the conical surface.
[0016] Furthermore, the first explosion-proof line and the second explosion-proof line are designed to be continuous or discontinuous.
[0017] In order to increase the strength, circumferentially distributed reinforcing ribs 8 are provided on the bottom surface of the cover plate.
Claims
1. A battery pack cell protection cover, characterized in that: It includes a cover body, a sinking platform is arranged in the middle of the cover body, the sinking platform is recessed downward, the sinking platform has a bottom plate and a cylindrical side wall, the bottom plate of the sinking platform is upwardly protruded to form a raised cone surface, a thinning indentation is arranged on the raised cone surface, the thinning indentation forms an explosion-proof line of the battery, and the cover body is symmetrically provided with perforations on both sides of the sinking platform, and the inner wall of the perforation has an outwardly protruding ridge.
2. The battery pack cell protection cover according to claim 1, characterized in that: The through hole is provided with an electrode edge, and the two ends of the electrode edge are turned outward toward the local bottom surface and the top surface of the cover plate.
3. The battery pack cell protection cover according to claim 1, characterized in that: The thinning indentation of the raised conical surface is divided into a first explosion-proof line located on the outer side of the conical surface and a second explosion-proof line located on the inner side of the conical surface.
4. The battery pack cell protection cover according to claim 3, characterized in that: The first explosion-proof wire and the second explosion-proof wire are of continuous or discontinuous design.
5. The battery pack cell protection cover according to claim 1, characterized in that: The bottom surface of the cover plate is provided with circumferentially distributed reinforcing ribs.