Electronic power module for a power tool having an integrated heat sink
AssigneeBlack & Decker Inc.
InventorsEric W. Wachter, Erik A. Ekstrom, Alpay Hizal
Life of this patent
Estimating the term…
Abstract
An electronic switch module for a power tool having an electric motor is provided, including a printed circuit board (PCB), power switches mounted on the PCB and configured to switchably supply electric power from a power source to the electric motor, a series of primary heat sinks mounted on the PCB in association with the power switches, and a secondary heat sink mounted on the primary heat sinks and securely fastened to at least one of the primary heat sinks via a fastener, the secondary heat sink being electrically insulated from at least one of the primary heat sinks.
Claims15
An electronic switch module for a power tool having an electric motor, comprising:
- a printed circuit board (PCB);
- a plurality of power switches mounted on the PCB and configured to switchably supply electric power from a power source to the electric motor;
- a plurality of primary heat sinks mounted on the PCB in association with the plurality of power switches;
- and
- a secondary heat sink mounted on the plurality of primary heat sinks and securely fastened to at least one of the plurality of primary heat sinks via a fastener, the secondary heat sink being electrically insulated from at least one of the plurality of primary heat sinks.
A power tool comprising:
- a housing;
- a motor disposed in the housing;
- and
- an electronic switch module coupled to the motor to control a supply of power to the motor, the electronic switch module comprising:
- a printed circuit board (PCB);
- a plurality of power switches mounted on the PCB and configured to switchably supply electric power from a power source to the electric motor;
- a plurality of primary heat sinks mounted on the PCB in association with the plurality of power switches;
- a secondary heat sink mounted on the plurality of primary heat sinks and fastened to at least one of the plurality of primary heat sinks via a fastener, the secondary heat sink being electrically insulated from at least one of the plurality of primary heat sinks.
Dependencies are inferred from the claim text.