Patent ID: 8659251

Claim:
A wiper motor comprising: a motor unit having a rotating shaft, a gear unit having a speed reduction mechanism for reducing the speed of rotation of the rotating shaft and outputting the speed-reduced rotation, and a controller unit, wherein the gear unit comprises: a first speed reduction gear provided to one end side of the rotating shaft and forming the speed reduction mechanism; a second speed reduction gear meshed with the first speed reduction gear to form the speed reduction mechanism and having an output shaft at a rotational center thereof; and a gear case in which the speed reduction mechanism is rotatably accommodated; wherein the controller unit comprises: a sensor magnet fixed to the other end side of the rotating shaft; a control board facing the other end side of the rotating shaft from the axial direction of the rotating shaft; a rotation sensor provided to a portion facing the sensor magnet of the control board and detecting a rotational state of the rotating shaft; and a board case; wherein the motor unit comprises: a motor case formed into a bottomed cylinder shape; and a coil having one end side electrically connected to the control board and generating the electromagnetic force for rotating the rotating shaft by supply of drive current from the control board; and wherein the board case is mounted on an end portion of the motor case.