一种顶盖组件、电池和用电设备
By employing a dual-sealing structure in the top cover assembly, utilizing adhesive and welding for fixation, and combining an overflow groove and a vent groove design, the problem of poor sealing effect of the injection hole is solved, achieving higher sealing reliability and battery safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU RED FAIRY PRECISION TECHNOLOGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the sealing effect of the liquid injection hole of the top cover assembly is poor, which leads to problems such as electrolyte leakage and incomplete sealing.
The system employs a dual-sealing structure, combining a first sealing part and a second sealing part, which are then fixed to the cover plate by adhesive bonding and welding to enhance the sealing effect. The design of the overflow groove and the vent groove ensures the stability and reliability of the seal.
This improves the sealing reliability of the injection hole, avoids interference with the sealing components and incomplete sealing, and ensures effective sealing of the electrolyte and battery safety.
Smart Images
Figure CN224520158U_ABST
Abstract
Claims
1. A cap assembly (300) characterized by, include: Cover plate (31), the cover plate (31) is provided with injection hole (311); and, A sealing component (34) is at least partially disposed within the injection hole (311). The sealing component (34) is bonded and fixed to the cover plate (31). The sealing component (34) is also welded and fixed to the cover plate (31) to seal the injection hole (311).
2. The roof assembly (300) according to claim 1, characterized in that The sealing component (34) includes: A first sealing part (3411) is bonded and fixed to the cover plate (31); and, The second sealing part (3421) is located on the side of the first sealing part (3411) away from the battery core (200), and the second sealing part (3421) is welded and fixed to the cover plate (31).
3. The roof assembly (300) according to claim 2, characterized in that The inner wall of the injection hole (311) includes a first inner peripheral surface (312), which surrounds the outer peripheral surface of the first sealing part (3411) to be bonded and fixed to the outer peripheral surface of the first sealing part (3411).
4. The header assembly (300) of claim 2, wherein, The cover plate (31) includes an outer surface (315) facing away from the core (200), and the inner wall of the injection hole (311) also includes a second inner circumferential surface (314) and a stepped surface (313), wherein the second inner circumferential surface (314) is connected between the outer surface (315) and the stepped surface (313); At least one of the outer surface (315), the second inner circumferential surface (314), and the stepped surface (313) is welded and fixed to the second sealing part (3421).
5. The header assembly (300) of claim 2, wherein, An overflow groove (3422) is provided between the sealing component (34) and the inner wall of the injection hole (311). The overflow groove (3422) is located on the side of the first sealing part (3411) near the second sealing part (3421) so that the adhesive can overflow from the first sealing part (3411) into the overflow groove (3422).
6. The roof assembly (300) according to claim 5, characterized in that The overflow groove (3422) is at least partially formed in the sealing member (34).
7. The top cover assembly (300) according to claim 5, characterized in that, The overflow groove (3422) surrounds the outer periphery of the first sealing part (3411), and the second sealing part (3421) is welded and fixed to the cover plate (31) on the outer periphery of the overflow groove (3422).
8. The roof assembly (300) according to any one of claims 1 to 7, characterized in that The sealing component (34) includes an adhesive element (341) that is bonded to the cover plate (31); and / or, The sealing component (34) includes a metal part, which is welded to the cover plate (31).
9. A battery, characterized by include: The housing (100) is provided with a receiving cavity and an opening, the opening communicating with the receiving cavity; A core (200) disposed within the receiving cavity; and, The top cover assembly (300) as claimed in any one of claims 1 to 8, wherein the top cover assembly (300) is connected to the housing (100) to close the opening.
10. An electric device, characterized by Includes the battery as described in claim 9.