电池壳体及二次电池
By designing the battery housing to avoid openings and using a snap-fit structure, stable integration of the connector and the battery management system is achieved, solving the problem of unreasonable structural design in existing technologies and improving the assembly efficiency and sealing performance of the battery housing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EVE ENERGY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the output pole and communication port of low-voltage/medium-voltage batteries are poorly designed, resulting in unreasonable structural design between connectors, battery management system and battery casing. Especially when there are many cells connected in series, it is difficult to fix the module and seal the box/cover.
Design a battery housing with a housing body having a receiving cavity and a clearance opening. The battery management system is located in the receiving cavity, and the connector is located in the receiving cavity and extends through the clearance opening. The connector and the battery management system are integrated by combining a snap-fit structure and a fastener, avoiding horizontal assembly into the housing.
Stable integration of the connector and battery management system was achieved, solving the problem of high assembly difficulty and improving the sealing performance and stability of the battery casing.
Smart Images
Figure CN224520053U_ABST
Abstract
Claims
1. A battery case characterized by comprising: include: The housing body (10) has a receiving cavity (11), the top of the housing body (10) has a mounting opening (12) communicating with the receiving cavity (11), and the circumferential sidewall of the housing body (10) has at least one clearance opening (13). A battery management system (20), at least a portion of which is disposed within the receiving cavity (11); A connector (30) is disposed on the battery management system (20), and at least a portion of the connector (30) is located inside the receiving cavity (11), and at least another portion of the connector (30) extends out of the housing body (10) through the clearance opening (13).
2. The battery case according to claim 1, wherein The battery management system (20) has at least one connecting arm (21), and the battery management system (20) is connected to the housing body (10) through the connecting arm (21).
3. The battery case according to claim 2, characterized by The connecting arm (21) is connected to the portion of the housing body (10) corresponding to the periphery of the mounting opening (12).
4. The battery case of claim 1, wherein, The periphery of the clearance opening (13) facing the battery management system (20) and the connector (30) have a mutually engaging snap-fit structure (40).
5. The battery case of claim 4, wherein, The snap-fit structure (40) includes: A snap-fit protrusion (41) is provided on the periphery of the clearance opening (13) facing the battery management system (20); A snap-fit groove (42) is provided on the connector (30) and mates with the snap-fit protrusion (41), and at least a portion of the snap-fit protrusion (41) extends into the snap-fit groove (42).
6. The battery case of claim 5, wherein, A sealing structure is provided between the snap-fit protrusion (41) and the snap-fit groove (42).
7. The battery case of claim 6, wherein, The sealing structure is a sealant filled between the snap-fit protrusion (41) and the snap-fit groove (42).
8. The battery case of claim 6, wherein, The sealing structure is a sealing gasket disposed between the snap-fit protrusion (41) and the snap-fit groove (42).
9. The battery case according to any one of claims 1 to 8, characterized by, The circumferential sidewall of the housing body (10) also includes at least two fixed openings (14), the fixed openings (14) and the clearance openings (13) are located on the same side of the housing body (10), the clearance openings (13) are located between the two fixed openings (14), the battery housing also includes a fastener (50), the fastener (50) extends into the receiving cavity (11) through the fixed openings (14) and is connected to the battery management system (20).
10. A secondary battery characterized by comprising: The battery module (70) includes a battery housing according to any one of claims 1 to 9, wherein the battery module (70) is disposed inside the receiving cavity (11) of the battery housing and the battery module (70) is connected to the battery management system (20).