Title:
SPEAKER
Document Type and Number:
WIPO Patent Application WO/2014/017753
Kind Code:
A1
Abstract:
The present invention relates to a speaker. The speaker, according to the present invention, has permanent magnets disposed on both open sides of a solenoid coil shaped as a square container. According to the present invention, a uniform magnetic field is formed between the pair of permanent magnets, and thus the solenoid coil vibrates in a balanced way and the vibration is transferred to a vibration plate such that a clear sound can be reproduced. Furthermore, since the solenoid coil is balanced even when the solenoid coil is placed between a pair of permanent magnets having wide surfaces that face each other, the present invention can be easily manufactured and processability can be increased.
Inventors:
LEE JOON HO (KR)
Application Number:
PCT/KR2013/005791
Publication Date:
January 30, 2014
Filing Date:
July 01, 2013
Export Citation:
Assignee:
LEE JOON HO (KR)
International Classes:
H04R11/02; H04R9/06
Foreign References:
| KR200404313Y1 | 2005-12-21 | |||
| KR100555416B1 | 2006-02-24 | |||
| KR940005863B1 | 1994-06-24 | |||
| KR101116659B1 | 2012-03-07 | |||
| JP2002176692A | 2002-06-21 |
Attorney, Agent or Firm:
TAEDONG INTERNATIONAL PATENT LAW FIRM (KR)
특허법인 태동 (KR)
특허법인 태동 (KR)
Download PDF: