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Patent Searching and Data


Title:
LINEAR VIBRATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2016/167297
Kind Code:
A1
Abstract:
The present invention minimizes the generation of a contact sound by minimizing the rotation of a movable element and obtains stable vibration even when the movable element is configured to have a flat shape. A linear vibration motor 1 is provided with: a movable element 10 provided with a magnetic pole 2 and a weight section 3; a frame 4 that supports the movable element 10 so as to be capable of reciprocating vibration; a coil 5 that is fixed with respect to the frame 4 and that applies driving force to the magnetic pole 2; a guide shaft 6 that limits vibration of the movable element 10 to one axial direction; and an elastic member 6 that is provided between the frame 4 and the movable element 10 and that elastically deforms as a result of reciprocating vibration of the movable element 10. The movable element 10 has a flat shape in which the width in a direction intersecting the axial direction of the guide shaft 6 is larger than the thickness in a direction intersecting the axial direction of the guide shaft 6. The elastic member 7 is provided with plate springs 71A, 71B having plate widths that follow the thickness direction of the movable element 10.

Inventors:
ODAJIMA Shin (18-10 Shimura 2-chome, Itabashi-k, Tokyo 50, 〒1748550, JP)
SEGAWA Noboru (18-10 Shimura 2-chome, Itabashi-k, Tokyo 50, 〒1748550, JP)
KATADA Yoshinori (18-10 Shimura 2-chome, Itabashi-k, Tokyo 50, 〒1748550, JP)
ISHII Shiori (18-10 Shimura 2-chome, Itabashi-k, Tokyo 50, 〒1748550, JP)
Application Number:
JP2016/061943
Publication Date:
October 20, 2016
Filing Date:
April 13, 2016
Export Citation:
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Assignee:
NIDEC COPAL CORPORATION (18-10, Shimura 2-chome Itabashi-k, Tokyo 50, 〒1748550, JP)
International Classes:
H02K33/12; B06B1/04
Foreign References:
JP2011205870A2011-10-13
JP2011097747A2011-05-12
US20110133577A12011-06-09
Attorney, Agent or Firm:
EICHI PATENT & TRADEMARK CORP. (45-13, Sengoku 4-chome Bunkyo-k, Tokyo 11, 〒1120011, JP)
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