Patent ID: 6756711
Filing Date: 2004-06-29
Classification: H02K,Y10S,Y10T

Abstract:
A motor comprising:a motor unit that has: a yoke housing, which includes an opening; a rotatable shaft received in the yoke housing; and a cover installed in proximity to the opening of the yoke housing; and a speed reducing unit connected to the motor unit, the speed reducing unit including: a speed reducing mechanism for reducing rotational speed of the rotatable shaft; a generally planar control circuit board for controlling rotation of the motor unit; and a gear housing that includes a circuit board receiving portion having a bottom surface and an opening, wherein: the cover is positioned between the opening of the yoke housing and the opening of the gear housing to cover both the opening of the yoke housing and the opening of the gear housing; the opening of the gear housing faces the motor unit in an axial direction of the rotatable shaft and is communicated with the bottom surface of the circuit board receiving portion; and the control circuit board is inserted in the circuit board receiving portion of the gear housing through the opening of the gear housing in an axial direction of the rotatable shaft in such a manner that the control circuit board is clamped between the cover and the bottom surface of the circuit board receiving portion such that a plane of the control circuit board is generally parallel to an axis of the rotatable shaft when the motor unit and the speed reducing unit are assembled and connected together.