The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 13, 2018

Filed:

Jul. 07, 2016
Applicant:

Milwaukee Electric Tool Corporation, Brookfield, WI (US);

Inventors:

Matthew J. Mergener, Mequon, WI (US);

Daniel R. Ertl, Brookfield, WI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H02K 7/14 (2006.01); H05K 1/18 (2006.01); H02K 11/33 (2016.01); H01L 23/34 (2006.01); H02K 9/22 (2006.01);
U.S. Cl.
CPC ...
H02K 7/145 (2013.01); H01L 23/34 (2013.01); H02K 9/22 (2013.01); H02K 11/33 (2016.01); H05K 1/181 (2013.01); H05K 2201/09 (2013.01); H05K 2201/10166 (2013.01);
Abstract

A power tool and a printed circuit board assembly ('PCBA') for the power tool. The PCBA includes, for example, a printed circuit board ('PCB'), a heat sink, a spacer between the PCB and the heat sink, and a gap pad. The PCB and the heat sink are fastened to one another via fasteners so the spacer absorbs excess forces torsional forces from torques applied to the fasteners. The gap pad is placed within an opening or recess of the spacer to contact one or more FETs on the PCB. In some embodiments, the PCBA includes a second heat sink or rigid member on the opposite side of the PCB than the spacer to further distribute excess torsional forces from torques applied to the fasteners.


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