Power tool and method for producing the same

摘要

A power tool (1) and a method of producing such power tool capable of improving dust proof performance with respect to a circuit board (33) and a stator coil (31B), and capable of securing cooling performance to the circuit board. The power tool includes a brushless motor (3) having a hollow stator (31), a rotor (32) positioned in an internal space of the stator, and a motor driver circuit connected to the stator. The stator includes a coil (31B) electrically connected to the motor driver circuit. The coil is coated with a coating agent (31D), and the motor driver circuit is covered with an insulation cover member (33D).

主权项

1. A power tool including a brushless motor configured to drive an end bit, the brushless motor comprising:
a stator having a hollow cylindrical shape providing an internal space and provided with a coil; a rotor positioned in the internal space; and a circuit board connected to the stator, the coil being electrically connected to the circuit board, wherein:
the coil is covered with a first resin material,the circuit board in its entirety is covered with a second resin material, andthe coil is connected to the circuit board such that a part of the first resin material is covered with the second resin material.