US 12,418,069 B2
Power tool and battery pack
Yugang Cheng, Nanjing (CN); Qiangqiang He, Nanjing (CN); Jianzhong Liu, Nanjing (CN); and Jun Ji, Nanjing (CN)
Assigned to Nanjing Chervon Industry Co., Ltd., Nanjing (CN)
Filed by Nanjing Chervon Industry Co., Ltd., Nanjing (CN)
Filed on Apr. 16, 2024, as Appl. No. 18/636,492.
Claims priority of application No. 202310636827.0 (CN), filed on May 31, 2023.
Prior Publication US 2024/0405333 A1, Dec. 5, 2024
Int. Cl. H01M 50/00 (2021.01); B25F 5/02 (2006.01); H01M 50/227 (2021.01); H01M 50/231 (2021.01); H01M 50/24 (2021.01); H01M 50/247 (2021.01); H01M 50/284 (2021.01); H01M 50/296 (2021.01)
CPC H01M 50/24 (2021.01) [B25F 5/02 (2013.01); H01M 50/227 (2021.01); H01M 50/231 (2021.01); H01M 50/247 (2021.01); H01M 50/284 (2021.01); H01M 50/296 (2021.01); H01M 2220/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A power tool, comprising:
a tool body;
an electric motor disposed in the tool body;
a battery pack; and
a battery interface configured to be connected to the battery pack for supplying power to the electric motor,
wherein the battery pack comprises a housing and a cell module disposed in the housing, the cell module comprises a plurality of cells, a cell holder configured to support the plurality of cells, and a circuit board electrically connected to at least the plurality of cells, and the battery pack further comprises a terminal assembly electrically connected to at least the circuit board or the plurality of cells and connecting the cell module to the battery interface for electric power transmission and a silicone immersion coating applied to at least the cell module, and
wherein the silicone immersion coating is applied to the cell module at least by immersion.