电池装置以及用电设备
By using an adhesive bonding structure between a non-metallic housing and metal components, combined with transition parts and protrusion designs, the contradiction between lightweighting and reliability of the battery device is resolved, achieving a balance between the two.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing battery devices struggle to balance lightweight and reliability requirements, especially at the connection between metal reinforcements and plastic housings, where stress concentration can easily occur, affecting sealing and reliability.
The structure employs an adhesive bonding method between a non-metallic enclosure and metal components, including support members and hangers. This adhesive bonding method ensures the integrity and airtightness of the non-metallic enclosure, while transition members and protrusions are used to distribute stress and avoid stress concentration.
This achieves lightweight battery devices while improving sealing and reliability, reducing the probability of cracking, and enhancing connection strength and stability.
Smart Images
Figure CN224520027U_ABST
Abstract
Claims
1. A battery device, characterized by, include: A non-metallic enclosure includes a bottom wall and side walls, the side walls being arranged around the bottom wall, the bottom wall and side walls enclosing a receiving cavity and an opening communicating with the receiving cavity in a first direction; A single battery cell, wherein multiple battery cells are disposed in the receiving cavity; A metal component is disposed outside the receiving cavity and bonded and fixed to the non-metallic box body. The metal component includes a support member and a hanging member connected to each other. The support member is supported on the bottom wall on the side away from the receiving cavity, and the hanging member protrudes from the side wall on the side away from the receiving cavity.
2. The battery device according to claim 1, characterized by The metal assembly further includes a transition member, the support member and the mounting member have a height difference in the first direction, the transition member is connected between the support member and the mounting member, and at least one of the support member, the transition member and the mounting member is bonded and fixed to the non-metallic housing.
3. The battery device of claim 1, wherein A protrusion is provided on one of the non-metallic housing and the metal component. The protrusion abuts against and surrounds the other of the non-metallic housing and the metal component to form an adhesive groove. A connecting adhesive is provided in the adhesive groove, and the connecting adhesive is connected to the non-metallic housing and the metal component respectively.
4. The battery device of claim 1, wherein An overflow groove is formed between the metal component and the non-metallic housing; Alternatively, a baffle is provided between the metal component and the non-metallic housing, the baffle being connected to at least one of the metal component and the non-metallic housing and extending to the other.
5. The battery device of claim 1, wherein Along the first direction, the height difference h between the end of the bottom wall away from the receiving cavity and the end of the support member away from the receiving cavity satisfies: 0≤h≤5mm.
6. The battery device according to any one of claims 1 to 5, wherein Along the first direction, a recess is provided on the side of the bottom wall opposite to the receiving cavity, and the support member is at least partially located within the recess.
7. The battery device according to any one of claims 1 to 5, wherein The bottom wall includes a wall body and a plurality of first protruding ribs disposed on the wall body. The wall body is connected to the side wall and encloses the cavity to form the receiving cavity. The first protruding ribs protrude from the wall body in the first direction away from the receiving cavity. The orthographic projection of the support member on the wall body is offset from the first protruding ribs. The support member is connected to the wall body.
8. The battery device according to any one of claims 1 to 5, wherein The bottom wall includes a wall body and a plurality of first ribs and second ribs disposed on the wall body. The wall body is connected to the side wall and encloses the receiving cavity. The first ribs and second ribs are spaced apart from each other. The first ribs and second ribs protrude from the wall body in the first direction away from the receiving cavity. The orthographic projection of the support member on the wall body is offset from the first rib and covers the second rib. Along the first direction, the length of the second rib protruding from the wall body is less than the length of the first rib protruding from the wall body.
9. The battery device according to any one of claims 1 to 5, wherein Along the first direction, the orthographic projection of the support member onto the bottom wall covers at least a portion of the battery cell.
10. The battery device according to any one of claims 1 to 5, wherein The minimum vertical distance between the battery cell and the sidewall is A, and the minimum vertical distance between the end of the support member away from the connected mount member and the sidewall is B, wherein BA ≥ 5mm.
11. The battery device according to any one of claims 1 to 5, wherein The non-metallic box is equipped with reinforcing ribs.
12. The battery device according to any one of claims 1 to 5, wherein The battery device also includes a reinforcing connector, which connects the metal component and the non-metallic housing, and is located outside the receiving cavity.
13. The battery device of claim 12, wherein, The reinforcing connector includes a welded portion disposed between the metal component and the non-metallic housing; Alternatively, the reinforcing connector includes a plug-in portion and a limiting portion, the plug-in portion being connected between the limiting portion and the non-metallic housing, the metal component having a socket, the plug-in portion being located in the socket, and the limiting portion and the non-metallic housing fixingly clamping at least a portion of the metal component.
14. The battery device of claim 12, wherein, The non-metallic enclosure further includes an extension section, one end of which is connected to the side wall and the other end extends away from the receiving cavity. The reinforcing connector includes a locking nut and a screw. At least one of the bottom wall and the extension section is fitted with a locking nut. The metal component is provided with a insertion hole. The screw is inserted into the insertion hole and threadedly connected to the locking nut.
15. The battery device according to any one of claims 1 to 5, wherein The number of metal components is two or more, and each metal component is bonded and fixed to the non-metallic housing.
16. The battery device of claim 15, wherein, Multiple metal components are spaced apart along a second direction, and a support member of each metal component extends along a third direction. The support member is provided with a mounting member at both ends of the third direction. The first direction, the second direction, and the third direction intersect each other.
17. The battery device of claim 15, wherein, The battery device also includes an adapter, which connects at least two of the metal components.
18. The battery device according to any one of claims 1 to 5, wherein The battery device further includes a thermal management component disposed in the receiving cavity, the thermal management component being used for heat exchange with the battery cells.
19. The battery device of claim 18, wherein, The non-metallic housing has a mounting groove on the side facing the receiving cavity that matches the shape of the thermal management component, and the thermal management component is at least partially received in the mounting groove.
20. The battery device according to any one of claims 1 to 5, wherein The non-metallic enclosure is a one-piece structure; and / or, the metallic components are a one-piece structure.
21. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1 to 20.