US 11,658,545 B2
Brushless direct current motor end cap
Isidro Alanis, Kenosha, WI (US); Jason Genz, Greendale, WI (US); and Michael Rajzer, Greendale, WI (US)
Assigned to Snap-on Incorporated, Kenosha, WI (US)
Filed by Snap-on Incorporated, Kenosha, WI (US)
Filed on Jun. 19, 2020, as Appl. No. 16/906,320.
Prior Publication US 2021/0399611 A1, Dec. 23, 2021
Int. Cl. H02K 9/22 (2006.01); H02K 9/02 (2006.01); B25F 5/00 (2006.01); H02K 11/33 (2016.01); H02K 7/14 (2006.01)
CPC H02K 9/227 (2021.01) [B25F 5/008 (2013.01); H02K 7/145 (2013.01); H02K 9/02 (2013.01); H02K 9/22 (2013.01); H02K 11/33 (2016.01)] 14 Claims
OG exemplary drawing
1. A tool comprising:
a motor including a controller and switching elements, the controller controlling the switching elements to operate the motor in response to a user input;
an end cap coupled to the motor, the end cap comprising:
an end cap base;
fins coupled to the end cap base; and
a slot disposed between adjacent fins and extending through and across the end cap, wherein the slot is adapted to allow air to flow through the end cap, and
wherein the switching elements are thermally coupled to the end cap.