公开(公告)号：US20220209638A1

公开(公告)日：2022-06-30

申请号：US17547301

申请日：2021-12-10

Applicant: Nidec Corporation

Inventor： Atsunori HIRATA ,  Hiroaki HIRANO ,  Ryoichi MITSUHATA

IPC: H02K33/02

Abstract: A vibrating motor includes a stationary portion, and a movable portion able to vibrate with respect to the stationary portion along a center axis extending in a vertical direction. The stationary portion includes a bearing portion which supports the movable portion to be able to vibrate along the center axis and has a tubular shape extending along the center axis, and a coil which directly or indirectly opposes at least a portion of the movable portion in a radial direction. A lower end portion of the bearing portion has a tubular shape extending along the center axis. A communication hole which penetrates in the vertical direction and allows an outside of the bearing portion and an inside of a portion above the lower end portion of the bearing portion to communicate with each other is provided on a radially inner side of the lower end portion.

公开(公告)号：US20220209637A1

公开(公告)日：2022-06-30

申请号：US17547300

申请日：2021-12-10

Applicant: Nidec Corporation

Inventor： Atsunori HIRATA ,  Hiroaki HIRANO ,  Ryoichi MITSUHATA

IPC: H02K33/02

Abstract: A vibrating motor includes a stationary portion, and a movable portion capable of vibrating with respect to the stationary portion along a center axis extending in a vertical direction. The stationary portion includes a bearing portion which extends along the center axis and supports the movable portion to be able to vibrate along the center axis, and a coil including a conductive wire wound around the center axis. The bearing portion includes a first region including a coil inner region on a radially inner side of the coil.

公开(公告)号：US20240283344A1

公开(公告)日：2024-08-22

申请号：US18581492

申请日：2024-02-20

Applicant: Nidec Corporation

Inventor： Ryoichi MITSUHATA ,  Jun INOUE

IPC: H02K33/02 ,  H02K3/28 ,  H02K5/15

CPC classification number: H02K33/02 ,  H02K3/28 ,  H02K5/15 ,  H02K2203/03 ,  H02K2203/06

Abstract: A vibration motor includes a movable portion and a stationary portion including a housing with a housing cylindrical portion, a housing lid at an end of the housing cylindrical portion, and adhesive. The housing lid includes a lid body portion covering an opening on one side of the housing cylindrical portion, and a lid fixing portion protruding from the lid body portion to another side and inside the housing cylindrical portion. The adhesive is in at least a portion of a bonding region between the housing cylindrical portion and the lid fixing portion in a radial direction. The housing cylindrical portion includes a cutout portion recessed from an end surface on one side of the housing cylindrical portion to the other side and penetrating the housing cylindrical portion in the radial direction. A portion of the bonding region is exposed to an outside of the housing through the cutout portion.

公开(公告)号：US20240030794A1

公开(公告)日：2024-01-25

申请号：US18377103

申请日：2023-10-05

Applicant: Nidec Corporation

Inventor： Atsunori HIRATA ,  Ryoichi MITSUHATA

IPC: H02K33/02

CPC classification number: H02K33/02

Abstract: A vibrating motor includes a stationary portion, a movable portion to vibrate with respect to the stationary portion along a center axis extending in a vertical direction, and an elastic portion. The stationary portion includes a bearing portion supporting the movable portion to enable vibration along the center axis and having a tubular shape extending along the center axis, a coil directly or indirectly opposing at least a portion of the movable portion in a radial direction, and a housing having a tubular shape extending along the center axis. The housing houses the bearing portion, the coil, and the movable portion. The elastic portion is between the movable portion and the housing.

公开(公告)号：US20220008955A1

公开(公告)日：2022-01-13

申请号：US17371026

申请日：2021-07-08

Applicant: NIDEC CORPORATION

Inventor： Atsunori HIRATA ,  Ryoichi MITSUHATA

IPC: B06B1/04 ,  H02K33/02 ,  H02K33/16

Abstract: A vibration motor and a tactile device are provided. The vibration motor has: a stationary portion; a movable portion, capable of vibrating with respect to the stationary portion along a central axis extending in an up-down direction; and an elastic member. The stationary portion has: a case including a housing disposed radially outside from the movable portion and having a cylindrical shape extending along the central axis; and a coil, capable of applying a driving force to the movable portion. The movable portion has: a magnet, extending along the central axis; and a holder, disposed above the magnet. The holder has: an upper portion, extending in a direction intersecting with the central axis and disposed above an upper surface of the magnet; and a side surface portion, extending downward from a radial outer edge part of the upper portion and fixed to a radial outer side surface of the magnet.

公开(公告)号：US20230283155A1

公开(公告)日：2023-09-07

申请号：US18317088

申请日：2023-05-14

Applicant: NIDEC CORPORATION

Inventor： Atsunori HIRATA ,  Ryoichi MITSUHATA

IPC: H02K33/02 ,  G06F3/01

CPC classification number: H02K33/02 ,  G06F3/016 ,  G06F3/03545

Abstract: A vibration motor and a tactile device are provided. The vibration motor has: a stationary portion; a movable portion having a magnet and capable of vibrating with respect to the stationary portion along a central axis extending in an up-down direction; and an elastic member. The stationary portion has: a housing, disposed radially outside from the movable portion and having a cylindrical shape extending along the central axis; a top surface portion, disposed above the movable portion, fixed to the housing, and extended in a direction intersecting with the central axis; and a coil, capable of applying a driving force to the movable portion. The elastic member is disposed below the top surface portion and above the movable portion. The elastic member is fixed to the top surface portion and the movable portion and supports the movable portion so that the movable portion can vibrate along the central axis.

公开(公告)号：US20220209639A1

公开(公告)日：2022-06-30

申请号：US17547302

申请日：2021-12-10

Applicant: Nidec Corporation

Inventor： Atsunori HIRATA ,  Ryoichi MITSUHATA

IPC: H02K33/02

Abstract: A vibrating motor includes a stationary portion, and a movable portion able to vibrate with respect to the stationary portion along a center axis extending in a vertical direction. The stationary portion includes a bearing portion which supports the movable portion to be able to vibrate along the center axis and has a tubular shape extending along the center axis, a coil which directly opposes at least a portion of the movable portion in a radial direction, and a top surface portion which is above the movable portion and connected to the movable portion with an elastic portion therebetween. The bearing portion includes a first region which opposes the movable portion in the radial direction with a first gap therebetween, and a second region which is above the first region and opposes the movable portion in the radial direction with a second gap wider than the first gap therebetween.

公开(公告)号：US20220014081A1

公开(公告)日：2022-01-13

申请号：US17369977

申请日：2021-07-08

Applicant: NIDEC CORPORATION

Inventor： Atsunori HIRATA ,  Ryoichi MITSUHATA

IPC: H02K33/02 ,  G06F3/01

Abstract: A vibration motor and a tactile device are provided. The vibration motor has: a stationary portion; a movable portion having a magnet and capable of vibrating with respect to the stationary portion along a central axis extending in an up-down direction; and an elastic member. The stationary portion has: a housing, disposed radially outside from the movable portion and having a cylindrical shape extending along the central axis; a top surface portion, disposed above the movable portion, fixed to the housing, and extended in a direction intersecting with the central axis; and a coil, capable of applying a driving force to the movable portion. The elastic member is disposed below the top surface portion and above the movable portion. The elastic member is fixed to both the top surface portion and the movable portion, and supports the movable portion so that the movable portion can vibrate along the central axis.