US 12,334,572 B2
Sealing assembly for sealing through hole, and method and device for preparing battery cell
Xinxiang Chen, Changzhou (CN); Yulian Zheng, Changzhou (CN); Shoujun Huang, Changzhou (CN); and Peng Wang, Changzhou (CN)
Assigned to JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED, Changzhou (CN)
Filed by JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED, Changzhou (CN)
Filed on Mar. 8, 2023, as Appl. No. 18/180,815.
Application 18/180,815 is a continuation of application No. PCT/CN2021/105758, filed on Jul. 12, 2021.
Prior Publication US 2023/0223626 A1, Jul. 13, 2023
Int. Cl. H01M 50/184 (2021.01); H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/209 (2021.01); H01M 50/636 (2021.01); H01M 50/645 (2021.01)
CPC H01M 50/184 (2021.01) [H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/209 (2021.01); H01M 50/636 (2021.01); H01M 50/645 (2021.01)] 19 Claims
OG exemplary drawing
 
1. A sealing assembly for sealing a through hole, comprising:
a sealing sleeve provided in the through hole and having a cavity and an opening, the opening being in communication with the cavity;
an elastic sleeve tube provided in the cavity, the elastic sleeve tube having a first mounting hole that extends in an axial direction of the through hole, an inner wall, and an outer wall; and
a central rod provided in the first mounting hole and being in threaded connection with the elastic sleeve tube to enable the elastic sleeve tube to expand in a radial direction of the through hole to press the sealing sleeve and form, on the outer wall of the elastic sleeve tube, a raised portion that rivets the sealing sleeve to the through hole,
wherein one end, away from the opening, of the inner wall of the elastic sleeve tube is provided with at least one protruding structure, the at least one protruding structure protrudes in the radial direction and is configured to be pressed by the central rod to enable the elastic sleeve tube to expand in the radial direction of the through hole.