IP Library › Granted Patent US 11,108,296
Granted Patent B2
US 11,108,296 · App. 16/367,486 · Granted Aug 31, 2021

Actuator

Inventors: Akira Mori (Nagano, JP); Hiroshi Kitahara (Nagano, JP)
Assignee: NIDEC SANKYO CORPORATION
H02K5/04B06B1/045H01F27/2828H01F27/2866H02K33/16
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Quick Facts
Patent No.
US 11,108,296
App. No.
16/367,486
Granted
Aug 31, 2021
Kind
B2
Abstract

An actuator may include a movable body; a support body; a connecting body disposed in contact with both the movable body and the support body in a position in which the movable body and the support body face each other; and a magnetic driving circuit including a coil in the support body and a permanent magnet in the movable body. The magnetic driving circuit may cause the movable body to vibrate. The support body may include a coil holder that holds the coil, a case that covers a circumference of the movable body and the coil holder, and a power supply board held by the coil holder in a position exposed from the case and to which a coil wire forming the coil is connected.

Claims (21)

1. An actuator, comprising:

a movable body;

a support body;

a connecting body having at least one of elasticity and viscoelasticity, and disposed in contact with both the movable body and the support body in a position in which the movable body and the support body face each other;

a magnetic driving circuit comprising a coil provided in the support body and a permanent magnet provided in the movable body so as to face the coil in a first direction, the magnetic driving circuit causing the movable body to vibrate with respect to the support body in a second direction which intersects with the first direction, wherein

the support body comprises a coil holder that holds the coil, a case that covers a circumference of the movable body and the coil holder, and a power supply board held by the coil holder in a position exposed from the case and to which a coil wire forming the coil is connected, and

the coil holder comprises an abutting portion that defines a movable range of the movable body when the movable body is moved in the second direction and a third direction which intersects with the first direction and the second direction due to an impact from an outside.

2. The actuator according to claim 1 , wherein the power supply board is provided along a side surface of the coil holder.

3. The actuator according to claim 2 , wherein the side surface is positioned on a first side of the third direction in the coil holder.

4. The actuator according to claim 1 , wherein the power supply board is a rigid board.

5. The actuator according to claim 4 , wherein both end portions of the power supply board are respectively fit inside a pair of slits extending in the first direction in positions in which the slits face each other of the coil holder.

6. The actuator according to claim 3 , wherein the power supply board is a rigid board.

7. The actuator according to claim 6 , wherein both end portions of the power supply board are respectively fit inside a pair of slits extending in the first direction in positions in which the slits face each other of the coil holder.

8. The actuator according to claim 2 , wherein the power supply board is a rigid board.

9. The actuator according to claim 8 , wherein both end portions of the power supply board are respectively fit inside a pair of slits extending in the first direction in positions in which the slits face each other of the coil holder.

10. The actuator according to claim 1 , wherein the power supply board is a rigid board.

11. The actuator according to claim 8 , wherein both end portions of the power supply board are respectively fit inside a pair of slits extending in the first direction in positions in which the slits face each other of the coil holder.

12. The actuator according to claim 1 , wherein the power supply board is a rigid board.

13. The actuator according to claim 12 , wherein both end portions of the power supply board are respectively fit inside a pair of slits extending in the first direction in positions in which the slits face each other of the coil holder.

14. The actuator according to claim 1 , wherein the power supply board is a rigid board.

15. The actuator according to claim 14 , wherein both end portions of the power supply board are respectively fit inside a pair of slits extending in the first direction in positions in which the slits face each other of the coil holder.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2019
From: MORI, AKIRA; KITAHARA, HIROSHI
To: NIDEC SANKYO CORPORATION
Reel/Frame 048725/0987 →
Priority Claims (1)
JP JP2018-068098 · Mar 30, 2018 · national
Continuity (1)
Related Publication 20190305630A1 · Oct 3, 2019