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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11339780 B1

PDFFull Text
Date of Patent:
May. 24, 2022

Filed:

Aug. 16, 2018

Electric oil pump

Applicant:

Nidec Tosok Corporation, Zama, JP;

Inventors:

Shigehiro Kataoka, Zama, JP;

Yoshiyuki Kobayashi, Zama, JP;

Assignee:

NIDEC TOSOK CORPORATION, Kanagawa, JP;

Attorney:

Keating & Bennett

Primary Examiner:

Dominick L Plakkoottam

Int. Cl.
CPC ...
F04D 29/52 (2006.01); F04D 13/06 (2006.01); F04D 29/18 (2006.01); F04D 29/043 (2006.01); H02K 3/52 (2006.01); H02K 7/14 (2006.01); H02K 11/33 (2016.01); H02K 21/16 (2006.01); F04C 2/08 (2006.01); F04C 2/10 (2006.01);
U.S. Cl.
CPC ...
F04C 2/08 (2013.01); F04C 2/102 (2013.01); H02K 3/522 (2013.01); H02K 7/14 (2013.01); H02K 11/33 (2016.01); H02K 21/16 (2013.01); F04C 2240/30 (2013.01); F04C 2240/803 (2013.01); F04C 2240/808 (2013.01); F04D 13/06 (2013.01); F04D 29/043 (2013.01); F04D 29/181 (2013.01); F04D 29/528 (2013.01); H02K 2203/09 (2013.01); H02K 2211/03 (2013.01);
Abstract

An electric oil pump includes a motor including a shaft, a pump driven with the shaft therebetween, and an inverter fixed to a rear side of the motor. The motor includes a motor housing. The inverter includes an inverter housing including a circuit board accommodation portion. The inverter housing includes bus bars that connect coil ends inside the circuit board accommodation portion and extending from the motor and a circuit board to each other. The motor housing includes a bottomed cylindrical shape including a bottom portion on the inverter side. The inverter housing includes a fixed portion that is fixed to the bottom portion. The fixed portion is fixed to the bottom portion using fixing members, and the fixing members are disposed within a region surrounded by bus bars.

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