Title:
DRIVE DEVICE FOR ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2012/120648
Kind Code:
A1
Abstract:
The objective of the present invention is to make it possible to prevent the lubricating oil of a speed reduction unit from moving toward an electric motor and to also prevent an offset load from being applied to bearings that support an input shaft. A drive device for an electric vehicle comprises: a speed reduction unit (12) including an input shaft (13) that is driven by the output of an electric motor (11); a hub unit (15) that is rotated and driven by an output member (14) of the speed reduction unit (12); and a housing (16) that houses the electric motor (11) and the speed reduction unit (12). The drive device is constructed such that: the housing (16) is provided with a partitioning wall (24) that divides respective spaces for housing the electric motor (11) and the speed reduction unit (12); and an oil seal member (36) is interposed between the peripheral edge of a center hole formed in the partitioning wall (24) and a rotor support member (31) of the electric motor (11).
Inventors:
SUZUKI MINORU (JP)
ISHIKAWA AIKO (JP)
MAKINO TOMOAKI (JP)
ISHIKAWA AIKO (JP)
MAKINO TOMOAKI (JP)
Application Number:
PCT/JP2011/055396
Publication Date:
September 13, 2012
Filing Date:
March 08, 2011
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
SUZUKI MINORU (JP)
ISHIKAWA AIKO (JP)
MAKINO TOMOAKI (JP)
SUZUKI MINORU (JP)
ISHIKAWA AIKO (JP)
MAKINO TOMOAKI (JP)
International Classes:
H02K5/15
Domestic Patent References:
| WO2007010843A1 | 2007-01-25 |
Foreign References:
| JP2007174725A | 2007-07-05 | |||
| JP2007131295A | 2007-05-31 | |||
| JP2009012523A | 2009-01-22 | |||
| JP2001032888A | 2001-02-06 | |||
| JP2001032888A | 2001-02-06 |
Other References:
See also references of EP 2685610A4
Attorney, Agent or Firm:
TORII Kazuhisa et al. (JP)
Kazuhisa Torii (JP)
Kazuhisa Torii (JP)
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Claims: