Invention Grant
- Patent Title: Drive apparatus
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Application No.: US16900997Application Date: 2020-06-15
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Publication No.: US11496023B2Publication Date: 2022-11-08
- Inventor: Keigo Nakamura , Daichi Furukawa
- Applicant: NIDEC CORPORATION
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Hauptman Ham, LLP
- Priority: JPJP2019-122154 20190628,JPJP2020-020936 20200210
- Main IPC: H02K9/19
- IPC: H02K9/19 ; H02K1/12

Abstract:
A drive apparatus includes: a motor having a rotor and a stator core; a housing; and a first injection port to inject a refrigerant into the stator core. The stator core includes: a core body surrounding the rotor; and a fixing portion projecting radially outward from the core body and fixed to the housing. The fixing portion includes an upper fixing portion. The first injection port is lower than an end portion of the upper fixing portion. The upper fixing portion is on one circumferential side of the first injection port. The first injection port is open in a first direction facing a directly lower side or a second direction angled to the one circumferential side with respect to the first direction, and is facing a portion on the other circumferential side of a boundary with an end portion of the upper fixing portion on the other circumferential side.
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