公开(公告)号：US20230012331A1

公开(公告)日：2023-01-12

申请号：US17858072

申请日：2022-07-06

Applicant: NIDEC TOSOK CORPORATION

Inventor： Yoshiyuki SHIZUKU ,  Shigehiro KATAOKA ,  Takanobu YAHATA ,  Thao LETHITHANH ,  Nguyen Thi Thanh TAM

IPC: H02K1/16 ,  H02K1/22 ,  H02K5/08 ,  H02K7/14 ,  F04C2/10

Abstract: One aspect of a pump of the present invention includes a rotor rotatable about a central axis, a stator assembly located radially outside the rotor and surrounding the rotor, a pump unit connected to a first side in an axial direction of the rotor, a support member including a rotor accommodating portion, the rotor accommodating portion being located radially inside the stator assembly and accommodates the rotor therein, and a resin housing in which the stator assembly and the support member are molded. The rotor accommodating portion includes a lid portion that covers the rotor from a second side in the axial direction, and a tubular portion that is located between the rotor and the stator assembly in a radial direction and is open to the first side in the axial direction. The stator assembly includes a stator core having an annular shape, a plurality of coils mounted on the stator core, and a stator cover that covers the plurality of coils.