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公开(公告)号：US20220320954A1
公开(公告)日：2022-10-06
申请号：US17706609
申请日：2022-03-29
Applicant: NIDEC CORPORATION
Inventor： Hiroshi SAMBUICHI , Desen PAN , Wenxian SHI
IPC: H02K7/00
Abstract: The disclosure provides a hollow shaft and a method for manufacturing the same. The hollow shaft includes: an outer periphery component having a cylindrical shape, and the outer edge of the outer periphery component has a polygonal shape; an inner periphery component having a cylindrical shape and is fitted to the inner wall of the outer periphery component; and a bottom component including a bottom plate and a cylindrical body, the extending direction of the bottom plate is perpendicular to the axial direction, the cylindrical body extends from the radially outer circumference of the bottom plate along the axial direction toward the outer periphery component, and the inner wall of the cylindrical body fits the outer wall of the inner periphery component. The outer periphery component, the inner periphery component, and the bottom component are separately defined components. The hollow shaft of the disclosure includes three separate components defined separately.
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公开(公告)号：US20180323669A1
公开(公告)日：2018-11-08
申请号：US16031454
申请日：2018-07-10
Applicant: Nidec Corporation
Inventor： Hiroshi SAMBUICHI , Kosuke OGAWA , Takashi HATTORI
CPC classification number: H02K3/28 , H02K3/38 , H02K3/522 , H02K15/0068 , H02K2203/09
Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
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公开(公告)号：US20220320950A1
公开(公告)日：2022-10-06
申请号：US17706576
申请日：2022-03-28
Applicant: NIDEC CORPORATION
Inventor： Hiroshi SAMBUICHI , Desen PAN , Wenxian SHI
Abstract: The disclosure provides a motor and a method for assembling the motor. The motor includes: a bus bar including a first portion of the bus bar and a second portion of the bus bar, the first portion of the bus bar and the second portion of the bus bar are defined separately; a first support component having a first support surface supporting the first abutting portion of the first portion of the bus bar toward the first direction; and a second support component having a second support surface supporting the second abutting portion of the second portion of the bus bar toward the first direction. The first portion of the bus bar further includes a first connecting portion, and the second portion of the bus bar further includes a second connecting portion. A distance between the first connecting portion and the second connecting portion is variable in the first direction.
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公开(公告)号：US20220320983A1
公开(公告)日：2022-10-06
申请号：US17707986
申请日：2022-03-30
Applicant: NIDEC CORPORATION
Inventor： Shunsuke MURAKAMI , Hiroshi SAMBUICHI
Abstract: A motor includes: a rotor arranged in a rotatable manner centered on a central axis and having a shaft and a rotor core arranged around the shaft; a stator arranged to face the rotor in a radial direction; a detector in which at least a portion is located on one side of the rotor core in an axial direction; and a housing accommodating the rotor, the stator, and the detector. The detector has a tubular fixed portion fixed to the rotor and an extending portion extending from an upper side of the fixed portion in the axial direction toward an outer side of the fixed portion in the radial direction. The extending portion is located on one side of the rotor core in the axial direction. At least a portion of the extending portion and the rotor are in contact with each other in the axial direction.
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公开(公告)号：US20220271606A1
公开(公告)日：2022-08-25
申请号：US17676234
申请日：2022-02-21
Applicant: NIDEC CORPORATION
Inventor： Hiroshi SAMBUICHI , Ting HUANG , Honglu CHE
Abstract: A motor and a driving member are provided. The motor has a rotor centered on and rotatable along a central axis and having a shaft and a bearing holding the shaft to be rotatable; a stator radially opposite to the rotor; a coil winding around the stator; a bearing holder; a bus bar holder on one or the other side of the bearing holder in an axial direction; a substantially cylindrical housing having an opening on a top side in the axial direction. The rotor, the stator, the bearing holder, and the bus bar holder are in the housing. A power bus bar and a signal bus bar are integrally formed on the bus bar holder which axially pushes against and is fixed to the bearing holder; a circuit board and a sensor are between the holders. This structure reduces an axial dimension of the motor and miniaturizes the motor.
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Patent Agency Ranking
公开(公告)号：US20180323670A1
公开(公告)日：2018-11-08
申请号：US16031474
申请日：2018-07-10
Applicant: Nidec Corporation
Inventor： Hiroshi SAMBUICHI , Kosuke OGAWA , Takashi HATTORI
CPC classification number: H02K3/28 , H02K3/38 , H02K3/522 , H02K15/0068 , H02K2203/09
Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
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公开(公告)号：US20220320982A1
公开(公告)日：2022-10-06
申请号：US17706599
申请日：2022-03-29
Applicant: NIDEC CORPORATION
Inventor： Hiroshi SAMBUICHI , Masashi SONODA , Desen PAN , Shuang HU
Abstract: A motor is provided, including: a rotor that is arranged in a rotatable manner centered on a central axis and has a shaft and a rotor core arranged around the shaft; a stator arranged so as to face the rotor in a radial direction; and a detector located on an upper side of the rotor core in an axial direction. An upper surface of the rotor core in the axial direction has a first concave portion recessed downward in the axial direction, and a portion of the detector is inserted into the first concave portion. An electrical product including the motor is also provided.
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公开(公告)号：US20210351657A1
公开(公告)日：2021-11-11
申请号：US17285091
申请日：2019-10-19
Applicant: NIDEC CORPORATION
Inventor： Yuki NORIKANE , Hiroshi SAMBUICHI , Takayuki MIGITA
Abstract: A motor includes a housing, a bearing holder, and a lid. The housing includes a tubular housing body having an end portion at one side, a recessed portion recessed from the end portion toward the other side, a housing protrusion extending from a bottom surface of the recessed portion toward the one side, a stepped portion on the one side away from the housing protrusion, and an extension extending from an opening toward the one side. The bearing holder includes a bearing protrusion extending radially outward, disposed in the recessed portion, and fixedly crimped between the housing protrusion and a side surface constituting the recessed portion. The lid is in axial contact with the stepped portion, and the extension is crimped onto the lid. Between the lid and the housing protrusion, an axial gap is formed, and between the housing protrusion and the side surface, a circumferential gap is formed.
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公开(公告)号：US20200244141A1
公开(公告)日：2020-07-30
申请号：US16848876
申请日：2020-04-15
Applicant: Nidec Corporation
Inventor： Hiroshi SAMBUICHI , Nakaba KATAOKA
Abstract: A motor for a driving device includes a rotor rotatable around a central axis, a stator facing the rotor, a busbar electrically connected to the stator, a busbar support to hold the busbar, a terminal bar including a first end electrically connected to the busbar, the terminal bar including a connection terminal at a second end and that is to be electrically connected to the driving device, and a seal to be attached to the driving device and located between the busbar and the connection terminal. The seal portion includes a through-hole into which the terminal bar is press-fitted.
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公开(公告)号：US20190229577A1
公开(公告)日：2019-07-25
申请号：US16315170
申请日：2017-07-20
Applicant: Nidec Corporation
Inventor： Hiroshi SAMBUICHI , Nakaba KATAOKA
Abstract: A motor for a driving device includes: a rotor rotatable around a central axis, a stator facing the rotor, a busbar electrically connected to the stator, a busbar support to hold the busbar, a terminal bar including a first end electrically connected to the busbar, the terminal bar including a connection terminal at a second end and that is to be electrically connected to the driving device, and a seal to be attached to the driving device and located between the busbar and the connection terminal. The seal portion includes a through-hole into which the terminal bar is press-fitted.
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