-
公开(公告)号：US20220320937A1
公开(公告)日：2022-10-06
申请号：US17616188
申请日：2020-06-01
Applicant: NIDEC CORPORATION
Inventor： Hibiki TAKADA , Takahiro HIWA , Hisashi FUJIHARA , Tatsuhiko MIZUTANI
Abstract: A busbar unit includes: three-phase busbars connected to three-phase coils; and three-phase external terminals that are members different from the three-phase busbars, the three-phase external terminals being connected to the three-phase busbars and electrically connected to a power supply source. Each of the three-phase external terminals includes: a terminal body portion; a busbar-side connection portion connected to a busbar of one phase from among the three-phase busbars; and a power-supply-source-side connection portion electrically connected to the power supply source. At least two terminals among the three-phase external terminals are different in length of a conduction path through which a current flows between the busbar-side connection portion and the power-supply-source-side connection portion in the terminal body portion.
-
公开(公告)号：US20220094250A1
公开(公告)日：2022-03-24
申请号：US17481364
申请日：2021-09-22
Applicant: Nidec Corporation
Inventor： Takayuki MAKINO , Tatsuhiko MIZUTANI , Masato AONO
Abstract: A motor assembly includes a motor including a rotor including a shaft rotatable about a rotation axis and a stator surrounding the rotor from radially outside, a housing that accommodates the motor, a bearing that is fixed to the housing and rotatably supports the shaft, a resolver including a resolver rotor fixed to the shaft and a resolver stator fixed to the housing, and a contact that has conductivity, is fixed to the housing, and is in contact with a contacted portion at an end portion on one axial side of the shaft. The housing includes an accommodation space in which the contacted portion of the shaft is accommodated. The contact and the resolver are side by side in a direction along a rotation axis in the accommodation space.
-
公开(公告)号：US20220320936A1
公开(公告)日：2022-10-06
申请号：US17616187
申请日：2020-06-01
Applicant: NIDEC CORPORATION
Inventor： Hibiki TAKADA , Takahiro HIWA , Hisashi FUJIHARA , Tatsuhiko MIZUTANI
Abstract: A stator includes three-phase coils in which slot accommodation portions are accommodated inside slots; three external terminals; and three busbars that electrically connect the external terminals and the coils. A first coil end and a second coil end that are positioned respectively at the ends of each of the coils extend from the radially outermost side of the slots toward the first side or the second side in the axial direction of the stator core. The winding-start coil ends of the three-phase coils are connected to busbar connection portions of different busbars.
-
公开(公告)号：US20220247287A1
公开(公告)日：2022-08-04
申请号：US17616185
申请日：2020-06-01
Applicant: NIDEC CORPORATION
Inventor： Hibiki TAKADA , Takahiro HIWA , Hisashi FUJIHARA , Tatsuhiko MIZUTANI
IPC: H02K15/085 , H02K1/16 , H02K15/04
Abstract: A stator includes a stator core, three-phase coils, three external terminals, and three busbars. Each of the three-phase coils has a first coil end protruding from the radially outermost side of a slot to a first side in the axial direction of the stator core. Each of the three bus bars includes a busbar body portion extending in a circumferential direction of the stator core, a busbar connection portion extending toward the first side in the axial direction, and an external terminal connection portion extending outward in the radial direction and connected to the external terminal. The first coil end extends in the radial direction through between the busbar body portion and the stator core in the axial direction, extends toward the first side in the axial direction on a radially outer side of the busbar body portion, and has a tip connected to the busbar connection portion from the radially outer side.
-
-
-
Search Results
4
records
(took 0.094 seconds)
