| 摘要 |
The present invention relates to a blower motor having a bearing air cooling structure. According to the present invention, the blower motor having a bearing air cooling structure comprises: a housing having a cylindrical stator (111) which is formed along an inner circumferential surface and has opened both ends; casing units (120) which are formed on the both ends of the housing (110); a rotation shaft (130) which penetrates the casing units (120) to be located inside the housing (110) and includes a rotor (131) coupled to the center thereof; bearing units (140) which are formed on both ends of the rotation shaft (130); and bearing housings (150) which are formed at the centers of the casing units (120) to store the bearing units (140) and have one or more internal passage pipes (151) to move heat generated in the bearing units (140) to the inside of the housing (110). Therefore, the heat is emitted to the inside/outside of the housing if a bearing to support the rotation shaft is overheated in the blower motor, thereby preventing performance declination in the motor. |
