Totally-enclosed type motor
In a totally-enclosed type motor, internal cooling air is passed through internal ventilation passages (4a) provided inside a stator frame (4) by an internal fan (9), and external cooling air is passed through external ventilation passages (4b) provided on the outside of the stator frame (4) by an e...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | In a totally-enclosed type motor, internal cooling air is passed through internal ventilation passages (4a) provided inside a stator frame (4) by an internal fan (9), and external cooling air is passed through external ventilation passages (4b) provided on the outside of the stator frame (4) by an external fan (12). Archly extending inner heat radiation ribs (4c) are provided on the inner surface of the ventilation passages (4a). The raise in temperature is reduced by an improvement in the cooling characteristic, thereby permitting a compact totally-enclosed type motor. |
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