ELECTRIC MOTOR
PROBLEM TO BE SOLVED: To provide an electric motor with an improved cooling function. SOLUTION: The electric motor has a stator and a rotor rotatably mounted to the rotor. The rotor has a shaft and a fan mounted to the shaft. An air-guide structure with an axially-extended portion is adjacent to the...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an electric motor with an improved cooling function. SOLUTION: The electric motor has a stator and a rotor rotatably mounted to the rotor. The rotor has a shaft and a fan mounted to the shaft. An air-guide structure with an axially-extended portion is adjacent to the fan and disposed to one end of the stator. A gap between the fan and the axially-extended portion in the axial and/or radial direction of the motor is narrowed to reduce the vortex of air generated by the air flowing from the outlet of the fan to its inlet through the gap. It is desirable that the width of the gap lies in the range between 0.05 and 2.0 mm. COPYRIGHT: (C)2011,JPO&INPIT |
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