Patent · US Active

Printed circuit board spacer

US10498195B2 · kind B2 · utility

12Cited by

14References

19Claims

0Family size

Assignee

Milwaukee Electric Tool Corporation · US

Inventors

Matthew J. Mergener · Mequon, US
Daniel R. Ertl · Brookfield, US

Key dates

Filing date	Oct 9, 2018
Grant date	Dec 3, 2019
Priority date	—
Expiry date	Oct 9, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2201/2036
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.