公开(公告)号：US10218243B2

公开(公告)日：2019-02-26

申请号：US15316558

申请日：2015-08-10

Applicant: TOP CO., LTD.

Inventor： Takayuki Kai ,  Kenji Sasaki ,  Hiroaki Asakura

IPC: H02K7/08 ,  H02K5/16 ,  H02P27/08 ,  H02K5/15 ,  H02K5/167 ,  H02K5/173

Abstract: A rolling bearing has an inner ring attached to a rotating shaft out of contact with a first end surface, and an outer ring is fitted onto an inner peripheral surface of a housing in contact with the first end surface. A sliding element is provided between a second end surface and the first end surface. A retaining portion is provided between the sliding element and the first end surface. A biasing portion is provided between the retaining portion and the first end surface to bias the retaining portion toward a second side in a lamination direction. The rotating shaft, the housing, the inner ring, the outer ring, a rolling element, the sliding element, the retaining portion, and the biasing portion are formed of a conductive material. The rotating shaft and the housing are electrically connected by the sliding element, the retaining portion, and the biasing portion.

公开(公告)号：US10186916B2

公开(公告)日：2019-01-22

申请号：US14655867

申请日：2013-12-13

Applicant: TOP CO., LTD.

Inventor： Hiroaki Asakura ,  Nobuyuki Tanaka ,  Tadashi Uno ,  Shingo Yamada

IPC: H02K1/04 ,  H02K1/16 ,  H02K21/16 ,  H02K1/14 ,  H02K15/12

Abstract: The rotary machine includes a rotor rotatably provided and a resin-molded stator. The stator includes a stator core, a coil, and a mold portion. A tooth portion in the stator core includes first and second facing portions. The first facing portion includes a first facing surface where an air gap with the rotor becomes a first distance. The second facing portion is integrated with the first facing portion in the circumferential direction centered at the rotation axis of the rotor, and includes a second facing surface where the air gap becomes a second distance wider than the first distance. The second facing portion includes a groove portion on the second facing surface. The mold portion includes a first mold portion. The first mold portion covers the second facing portion, is provided at the groove portion, and includes a third facing surface where the air gap becomes the first distance.