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Patent Searching and Data


Title:
DRIVE DEVICE FOR VEHICLES
Document Type and Number:
WIPO Patent Application WO/2017/154837
Kind Code:
A1
Abstract:
Provided is a drive device for vehicles, the drive device being configured so that the stator coil of a horizontally mounted electric motor can be efficiently cooled by lubricating oil supplied from the upper part of a housing, the stator coil will be unlikely to be affected by the supplied lubricating oil and by lubricating oil accumulated on the bottom of the housing, and the maximum temperature of the stator coil can be detected. An electric motor (1) has a housing (8), a stator (9), and a rotor (10). The stator (9) comprises a stator core (30) and a stator coil (31). The stator coil (31) comprises a plurality of individual coils (33) provided to the teeth (30b) of the stator core (30). The housing (8) has lubricating oil supply means (70, 71) for supplying lubricating oil onto the coil end (33a) of an individual coil (33) located at an upper part. A temperature detection means (75) for detecting the temperature of the stator coil (31) is disposed below the axis (O) of the rotor (10) and above the level (66) of lubricating oil accumulated on the bottom of the housing (8).

Inventors:
SUZUKI KENICHI (JP)
Application Number:
JP2017/008777
Publication Date:
September 14, 2017
Filing Date:
March 06, 2017
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H02K9/19; B60L50/16; H02K11/25
Foreign References:
JP2012217303A2012-11-08
JP2010259145A2010-11-11
JP2014209817A2014-11-06
JP2013207957A2013-10-07
JP2014204521A2014-10-27
Other References:
See also references of EP 3429070A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
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