US 12,347,839 B2
Power tool system
Jiannan Tan, Irvine, CA (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Jul. 8, 2022, as Appl. No. 17/860,809.
Claims priority of provisional application 63/219,408, filed on Jul. 8, 2021.
Prior Publication US 2023/0009134 A1, Jan. 12, 2023
Int. Cl. H02J 7/00 (2006.01); B25F 5/00 (2006.01); H01M 10/613 (2014.01); H01M 10/623 (2014.01); H01M 10/6563 (2014.01); H05K 7/20 (2006.01)
CPC H01M 10/6563 (2015.04) [B25F 5/008 (2013.01); H01M 10/613 (2015.04); H01M 10/623 (2015.04); H02J 7/0042 (2013.01); H05K 7/20936 (2013.01); H01M 2220/30 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A charger comprising:
a housing;
a battery pack interface defined in the housing and configured to engage a battery pack, the battery pack interface including
a first rail,
a second rail spaced apart from the first rail,
charging terminals positioned between the first rail and the second rail, and
an opening defined in the housing, the opening in fluid communication with an interior of the housing; and
an air conditioning assembly coupled within the housing;
the air conditioning assembly including
an evaporative member configured to evaporate coolant to ambient air, thereby humidifying the ambient air, and
a blower operable to move the ambient air into the housing from outside the housing, through the evaporative member, and to the opening of the battery pack interface.