Title:
ブラシレス直流振動モータ
Document Type and Number:
Japanese Patent JP5921743
Kind Code:
B2
Abstract:
A BLDC vibrational motor is provided, which is improved so as to generate a larger vibrational force per same volume compared to prior arts. A cylindrical bearing is fixed to a doughnut-shaped permanent magnet directly so that the magnet can be disposed as close as possible to the center of rotation, and thus coils can have a reduced volume and be disposed as close as possible to the center of rotation. The external space of the coils can be secured larger as much as the movement of position of the coils, and the weight takes up the space for rotation, so that volume of the weight can be enlarged. Thus, the weight can be extended and disposed to the external space of the coils, it is possible for a vibration motor with a small volume to generate a large vibrational force, which facilitates slim designs of the vibrational motor.
Inventors:
Lee, Sanui
Application Number:
JP2015076807A
Publication Date:
May 24, 2016
Filing Date:
April 03, 2015
Export Citation:
Assignee:
YOUNGBAGS CM CO.,LTD.
International Classes:
H02K7/075; B06B1/04; B06B1/16; H02K21/24
Domestic Patent References:
| JP2008289268A | ||||
| JP268655U | ||||
| JP200753891A | ||||
| JP2006166685A | ||||
| JP7174134A | ||||
| JP2002142427A | ||||
| JP20125294A | ||||
| JP58624A | ||||
| JP2013144613A |
Attorney, Agent or Firm:
Masago Onishi