US 12,278,402 B2
Top cover assembly including fixing element for fixing sealing element to mounting part and battery including the same
Xinxiang Chen, Jiangsu (CN); Shoujun Huang, Jiangsu (CN); Peng Wang, Jiangsu (CN); Yulian Zheng, Jiangsu (CN); and Huasheng Su, Jiangsu (CN)
Assigned to Jiangsu Contemporary Amperex Technology Limited, Jiangsu (CN)
Appl. No. 17/624,520
Filed by Jiangsu Contemporary Amperex Technology Limited, Jiangsu (CN)
PCT Filed Sep. 28, 2020, PCT No. PCT/CN2020/118376
§ 371(c)(1), (2) Date Jan. 3, 2022,
PCT Pub. No. WO2021/238002, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 202010473006.6 (CN), filed on May 29, 2020.
Prior Publication US 2022/0247053 A1, Aug. 4, 2022
Int. Cl. H01M 50/636 (2021.01); H01M 50/15 (2021.01); H01M 50/186 (2021.01)
CPC H01M 50/636 (2021.01) [H01M 50/15 (2021.01); H01M 50/186 (2021.01)] 11 Claims
OG exemplary drawing
 
1. A top cover assembly for a battery, comprising:
a cover plate body having a liquid injection hole;
a mounting part configured to be connected with the cover plate body and arranged around the liquid injection hole;
a sealing element configured to be connected with the mounting part and comprising a first top wall and a first side wall connected to a periphery of the first top wall, wherein the first side wall is sleeved on an outer periphery of the mounting part, the first top wall is configured to cover the liquid injection hole, and the first side wall is configured to be in press fit with the mounting part to achieve sealing of the liquid injection hole;
a fixing element configured to be connected with the cover plate body and fix the sealing element to the mounting part, wherein the fixing element comprises a second top wall and a second side wall connected to an outer periphery of the second top wall, the second side wall is sleeved on an outer periphery of the first side wall, the second top wall is in press fit with the first top wall to fix the sealing element, and a gap is formed between at least part of the first side wall and at least part of the second side wall; and
a second connecting part configured to connect the first side wall and the second side wall, and comprising:
a second connecting convex part arranged in one of the first side wall and the second side wall; and
a second connecting concave part arranged in an other of the first side wall and the second side wall,
wherein the second connecting convex part is configured to be connected with the second connecting concave part.