Title:
PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/159471
Kind Code:
A1
Abstract:
This pump device 1 comprises a motor unit 10 having a shaft 5 arranged along a central axis J extending in the axial direction, a pump unit 30 which is positioned to one side in the axial direction of the motor unit 10 and which is driven by the motor unit 10 through the shaft 5 and discharges oil, and an inverter circuit 50 which is positioned radially outwards of the motor unit 10. The motor unit 10 comprises a rotor 11 which can rotate around the shaft 5, a stator 15 which is arranged opposite of the rotor 11, and a housing 21 which houses the rotor 11 and the stator 15. The housing 21 has a heat sink 60 on the outside surface, the heat sink 60 has a first flow path 61 that passes oil pumped from the pump unit 30, and the inverter circuit 50 is in thermal contact with the heat sink 60.
Inventors:
KOBAYASHI YOSHIYUKI (JP)
HOMMA KAZUHIRO (JP)
HIGUCHI KOJI (JP)
ITO YOSUKE (JP)
HOMMA KAZUHIRO (JP)
HIGUCHI KOJI (JP)
ITO YOSUKE (JP)
Application Number:
PCT/JP2018/006608
Publication Date:
September 07, 2018
Filing Date:
February 23, 2018
Export Citation:
Assignee:
NIDEC TOSOK CORP (JP)
International Classes:
H02K9/19; B62D5/07; F04C2/10; F04C15/00; F04C15/06; H02K7/14; H02K11/33
Domestic Patent References:
| WO2015083458A1 | 2015-06-11 |
Foreign References:
| JPH09328075A | 1997-12-22 | |||
| JP2016096663A | 2016-05-26 | |||
| JP2006037828A | 2006-02-09 | |||
| JP2001213336A | 2001-08-07 | |||
| JP2016032330A | 2016-03-07 | |||
| JP2009019522A | 2009-01-29 |
Attorney, Agent or Firm:
KOHO IP LAW (JP)
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