Invention Grant
- Patent Title: Electric pump apparatus
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Application No.: US16574242Application Date: 2019-09-18
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Publication No.: US11245302B2Publication Date: 2022-02-08
- Inventor: Kazuhiro Homma , Tomohiro Sakata , Susumu Maeda , Masato Aono , Takashi Hattori
- Applicant: Nidec Corporation , Nidec Tosok Corporation
- Applicant Address: JP Kyoto; JP Zama
- Assignee: Nidec Corporation,Nidec Tosok Corporation
- Current Assignee: Nidec Corporation,Nidec Tosok Corporation
- Current Assignee Address: JP Kyoto; JP Zama
- Agency: Keating & Bennett
- Priority: JPJP2018-185851 20180928
- Main IPC: H02K3/52
- IPC: H02K3/52 ; H02K7/08 ; H02K11/33 ; F04B17/03 ; H02K21/16

Abstract:
An electric pump apparatus includes a motor, an inverter board, a coil support, a housing, and a pump portion driven by the motor. Coils include first end portions and second end portions drawn out from the coils, the first end portion and the second end portion defining both end portions of each of conducting wires of the coils. The inverter board is on a first axial side of the motor. The coil support includes a neutral point busbar that electrically connects the coils to one another. The coil support includes a first region including the first end portions arranged therein, each first end portion being directly connected to the inverter board, and a second region including the second end portions and the neutral point busbar arranged therein, each second end portion being connected to the neutral point busbar.
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