公开(公告)号：US20240088734A1

公开(公告)日：2024-03-14

申请号：US18337450

申请日：2023-06-20

Applicant: MITSUBA Corporation

Inventor： Shingo WATANABE ,  Keiichi Hosoi ,  Satoshi Itabashi

IPC: H02K3/28 ,  H02K1/16 ,  H02K15/02 ,  H02K15/085

CPC classification number: H02K3/28 ,  H02K1/16 ,  H02K15/026 ,  H02K15/085

Abstract: A stator includes: an A-phase coil, wound around four of 12 teeth and supplied with an A-phase current; a B-phase coil, wound around another four of the 12 teeth and supplied with a B-phase current; a C-phase coil, wound around yet another four of the 12 teeth and supplied with a C-phase current. The A-phase coil includes a transition part extending along the cylindrical part on an axial side between the teeth spaced apart in the circumferential direction. The B-phase and C-phase coils each include a transition part extending along the cylindrical part on another axial side between the teeth spaced apart in the circumferential direction. The turns of the first A-phase coil are one turn fewer than the turns of the first B-phase coil and the turns of the first C-phase coil.

公开(公告)号：US20240283315A1

公开(公告)日：2024-08-22

申请号：US18024771

申请日：2021-10-29

Applicant: MITSUBA Corporation

Inventor： Satoshi NAGAMOTO ,  Shingo WATANABE

IPC: H02K3/28 ,  H02K3/50 ,  H02K15/00

CPC classification number: H02K3/28 ,  H02K3/50 ,  H02K15/0068

Abstract: A brushless motor includes a motor body, a bracket, and a power supply structure for supplying power to the motor body through a through hole in the bracket. The motor body includes a stator having a core with teeth and a coil formed of a winding wound around the teeth. The power supply structure includes, for each phase, a winding pair including a first lead portion and a second lead portion of the winding, a guide part that guides the winding pair, and a connector part where the lead portions are electrically connected. The winding pair includes a first portion guided by the ide part and a second portion formed by bending the winding pair at an axially outer end of the first portion along a surface of the bracket. The first portion passes through the through hole in the axial direction. The second portion extends to the connector part.