Abstract: Disclosed herein is a motor housing including: a housing body accommodating a stator and a rotor therein; and a supporting frame coupled to the housing body and supporting a shaft of the rotor, wherein an end portion of the housing body is provided with a fixing part that is extended inwardly, such that the supporting frame is coupled to the fixing part.

Abstract: Disclosed herein is an assembling structure for a resolver capable of improving precision in sensing a position of a rotor of a motor by stably coupling and fixing a resolver stator part. More specifically, a fixing ring is coupled to the resolver stator part, a first coupling part of a motor housing, and a second coupling part of a cover member so as to simultaneously contact three surfaces of the resolver stator part, the first coupling part, and the second coupling part to form a stable coupling structure among the resolver stator part, the first coupling part, and the second coupling part, thereby making it possible to secure precision of a coupling position of the resolver stator part.

Abstract: Disclosed herein is a fan motor structure including: a shaft; a bearing member coupled to the shaft; a stator coupled to the shaft and disposed at one side of the bearing member; an impeller having a coupling hole and a space part formed therein so as to be in communication with each other, the coupling hole having the bearing member coupled thereto and the space part having the stator received therein; a yoke formed on an inner peripheral surface of the space part; a magnet formed on an inner peripheral surface of the yoke; a diffuser to which an end portion of the shaft is fixed; and a cover coupled to the diffuser and covering the impeller. According to a preferred embodiment of the present invention, a size of the fan motor is decreased.

Abstract: Disclosed herein is an impeller for an electric blower including: an upper plate; a lower plate; and a blade positioned between the upper plate and the lower plate, wherein the lower plate includes a burring part formed at an inner diameter portion thereof to which a shaft is insertedly coupled. In addition, disclosed herein is an impeller for an electric blower including: an upper plate; a lower plate; and a blade positioned between the upper plate and the lower plate, wherein the lower plate includes a burring part formed at an inner diameter portion thereof to which a shaft is insertedly coupled and a washer part extended in a direction perpendicular to the burring part.

Abstract: Disclosed herein is an apparatus of driving wheels for an in-wheel system, including: a driving shaft which is the center of rotatable driving; a fixation supporter rotatably supporting the driving shaft and coupled to the driving shaft; an in-wheel motor generating rotational power, which is coupled to the inside of a wheel in which a tire is mounted on one driving shaft in a shaft direction of the fixation supporter; and a balancing member formed on the other driving shaft in the shaft direction of the fixation supporter and formed at a position corresponding to the wheel coupled with the in-wheel motor. According to the present invention, an eccentricity phenomenon which is caused due to inclination of a wheel and a motor in one direction of a fixation supporter can be prevented in an apparatus of driving wheels for an in-wheel system.

Abstract: Disclosed herein are an apparatus and a method of driving a switched reluctance motor. The apparatus includes: a power supply unit; N pairs of coils; N common switch devices each connected in series with an upper portion of each of the N pairs of coils; N pairs of lower switch devices each connected in series with a lower portion of each of the N pairs of coils; first freewheel diodes; second freewheel diodes; and a switch driving unit providing a control signal to the N common switch devices and the N pairs of lower switch devices to sequentially supply current to the N pairs of coils.

Abstract: A color wheel unit and a fabrication method thereof are disclosed. The color wheel unit comprises a color wheel positioned on a light path and having RGB segments, which are rotated to be inserted in order into the light path, and a driving apparatus for providing rotational force to the color wheel, where the color wheel is secured to the driving apparatus by laser welding. This allows a simplified process for joining the color wheel to the driving apparatus.