DRIVE UNIT

To suitably cool a motor of a heat generation component.SOLUTION: A drive unit 12 includes a motor 16 and a cooling air passage 24 through which cooling air introduced from the outside flows. The cooling air passage 24 is formed so as to cross a shaft line direction of the motor 16. The cooling air...

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Bibliographische Detailangaben
Hauptverfasser:	TASAKI YOHEI, ONISHI TAKAYUKI, TAKEUCHI NAOKI, SAWADA KYOSUKE, NOMURA TOMOHIRO, NISHIHARA YUKI, KIMURA YOSUKE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CYCLES DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING
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Beschreibung
Zusammenfassung:	To suitably cool a motor of a heat generation component.SOLUTION: A drive unit 12 includes a motor 16 and a cooling air passage 24 through which cooling air introduced from the outside flows. The cooling air passage 24 is formed so as to cross a shaft line direction of the motor 16. The cooling air passage 24 includes a first partial passage (a partial passage 24c) extending along an outer peripheral surface (an upper surface 40 and a curved surface 48) of the motor 16. The first partial passage is bent so as to protrude outward in a radial direction of the motor 16 when viewed in a second direction along the shaft line direction.SELECTED DRAWING: Figure 9 【課題】発熱部品のモータの冷却を好適に行う。【解決手段】駆動ユニット１２は、モータ１６と、外部から導入される冷却風が流れる冷却風通路２４と、を備え、冷却風通路２４は、モータ１６の軸線方向と交差するように形成されており、冷却風通路２４は、モータ１６の外周面（上面４０、湾曲面４８）に沿って延びる第１部分通路（部分通路２４ｃ）を含み、第１部分通路は、軸線方向に沿った第２方向視において、モータ１６の径方向外側に突出するように屈曲する。【選択図】図９