Patent ID: 9126316
Filing Date: 2015-09-08
Classification: B25B,B25F,H02K

Abstract:
1. An electric tool comprising: a motor having a stator coil; a circuit board arranged at a rear side of the motor and having an inner surface facing toward the motor and an outer surface facing away from the motor; and an insulator including a cylindrical part extending in a cylindrical shape from the stator core toward the circuit board, wherein the stator coil includes a coil main body and an extending part extending from the coil main body, wherein the extending part extending from the coil main body is slacked and is configured to wrap around a periphery of the circuit board and electrically connect to the outer surface of the circuit board, wherein the inner surface of the circuit board faces the coil main body, wherein the extending part extending from the coil main body extends from the inner surface side of the circuit board to the outer surface side of the circuit board and is bent at the outer surface side to be connected to the circuit board, wherein the circuit board is fixed to an end of the cylindrical part of the insulator, wherein the cylindrical part of the insulator includes a cut-out or an opening at a side surface thereof, and wherein the extending part extending from the coil main body passes through the cut-out or the opening of the insulator as to extend from the inside of the cylindrical part of the insulator toward the inner surface of the circuit board, and then extends from the inner surface side of the circuit board toward the outer surface side of the circuit board.