Control module for high-power electric motor

An electric power tool comprising:

• a tool housing;
• an electric motor disposed in the tool housing;
• a control module disposed in the tool housing, wherein the control module includes:
• a metal base;
• an insulating wall fastened to the metal base;
• a circuit board disposed within the insulating wall, wherein the circuit board includes a first surface that faces the metal base and a second surface opposite the first surface;
• a plurality of power switches configured as an inverter circuit, wherein the plurality of power switches is mounted on the first surface of the circuit board;
• a thermally conductive electrically insulating layer between the circuit board and the metal base;
• a plurality of power output terminals mounted on the second surface of the circuit board;
• an insulating frame extending between at least one pair of power output terminals of the plurality of power output terminals;
• and
• one or more fasteners received through the insulating frame, the circuit board, and the thermally conductive electrically insulating layer and fastened to the metal base.

A system comprising:

• a power source;
• a power consuming component;
• and
• a control module configured to control a supply of electric power from the power source to the power consuming component, wherein the control module includes:
• a metal base;
• an insulating wall fastened to the metal base;
• a circuit board disposed within the insulating wall, wherein the circuit board includes a first surface that faces the metal base and a second surface opposite the first surface;
• a plurality of power switches configured as an inverter circuit, wherein the plurality of power switches is mounted on the first surface of the circuit board;
• a thermally conductive electrically insulating layer between the circuit board and the metal base;
• a plurality of power output terminals mounted on the second surface of the circuit board;
• an insulating frame extending between at least one pair of power output terminals of the plurality of power output terminals;
• and
• one or more fasteners received through the insulating frame, the circuit board, and the thermally conductive electrically insulating layer and fastened to the metal base.