BRUSHLESS ELECTRIC MOTOR FOR POWER TOOLS

摘要

PROBLEM TO BE SOLVED: To provide a configuration technology for power tools which is helpful for space-saving by improving arrangement and configuration of a brushless motor.

SOLUTION: A brushless motor 121 for power tools 101 is installed in a power tool, drives a rotor 124 to be rotated by applying a power to a stator 125 side, thereby driving a tool bit 111 for performing a predetermined working operation, as well as having a cooling fan 143 driven to be rotated. The cooling fan 143 also serves as a detecting means 129 for a rotational position of the rotor 124 in relation to the stator 125 by being formed with a predetermined magnetic material or conductive material.

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