US 11,056,895 B2
Multi-port charger
Fugen Qin, Timonium, MD (US); Hussein M. Nosair, Parkville, MD (US); Paul A. Stephenson, Parkville, MD (US); Brian K. Wohltmann, Shrewsbury, PA (US); Marc W McKinley, York, PA (US); and Nathan J. Cruise, Phoenix, MD (US)
Assigned to Black & Decker Inc., New Britain, CT (US)
Filed by Black & Decker Inc., New Britain, CT (US)
Filed on Oct. 18, 2018, as Appl. No. 16/164,105.
Claims priority of provisional application 62/574,011, filed on Oct. 18, 2017.
Prior Publication US 2019/0372365 A1, Dec. 5, 2019
Int. Cl. H02J 7/00 (2006.01); H01M 10/613 (2014.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 50/10 (2021.01)
CPC H02J 7/0027 (2013.01) [H01M 10/443 (2013.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 50/10 (2021.01); H02J 7/00 (2013.01); H02J 7/0021 (2013.01); H02J 7/0024 (2013.01); H02J 7/0047 (2013.01); H02J 7/0048 (2020.01); H02J 7/0049 (2020.01)] 9 Claims
OG exemplary drawing
 
1. A charger comprising:
a housing including a lower portion and an upper portion, the upper portion coupled to the lower portion in a manner to allow the upper portion to open and close relative to the lower portion and seal the lower portion, a central plane bisecting the lower portion along a length of the lower portion and generally perpendicular to a bottom wall of the lower portion;
a plurality of receptacles in the lower portion, at least two receptacles on a first side of the central plane and at least two receptacles on a second side of the central plane, the at least two receptacles on the first side of the central plane and the at least two receptacles on the second side of the central plane being positioned side by side in a row extending along the central plane, each receptacle including a battery pack interface, each interface including a terminal block to mechanically and electrically mate with a corresponding terminal block of a battery pack to transfer energy from the charger to the battery pack and to communicate information between the charger and the battery pack;
a printed circuit board upon which a plurality of charger electronics is mounted, the printed circuit board coupled to the bottom wall of the lower portion and extending along the bottom wall of the lower portion along and generally perpendicular to the central plane;
an inlet vent on a first side of the lower portion, the inlet vent generally perpendicular to the central plane and an outlet vent on a second side of the lower portion, the outlet vent generally perpendicular to the central plane and generally parallel to the inlet vent, the first side of the lower portion being opposed to the second side of the lower portion;
a first fan that provides airflow from the inlet vent to the outlet vent past the plurality of charger electronic components along the printed circuit board and along the central plane to cool the charger electronic components; and
a set of second fans, one fan of the set of second fans for each receptacle to provide airflow through the battery pack inserted in the respective receptacle.