The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 2021
Filed:
Jun. 04, 2020
Em-tech Co., Ltd., Gyeongsangnam-do, KR;
Cheon Myeong Kim, Gyeongsangnam-do, KR;
Jae Hwa Lim, Gyeongsangnam-do, KR;
Jeong Ae Ha, Gyeongsangnam-do, KR;
Ji Young Lee, Gyeongsangnam-do, KR;
Byung Ho Jung, Gyeongsangnam-do, KR;
EM-TECH CO., LTD., Gyeongsangnam-Do, KR;
Abstract
The present invention is intended to provide a sound generating actuator which can facilitate heat dissipation from a voice coil. According to the present invention, there is provided a sound generating actuator, including: a frame; a stationary part mounted on the frame and provided with a yoke, a magnet and a top plate to compose a magnetic circuit; a voice coil configured to receive an electrical signal and vibrate due to a magnetic field and mutual electromagnetic force of the stationary part; a spring configured to dampen vibration of the voice coil and that is made of a metallic material and secured to the frame; and a contact pad that is attached to the spring and configured to transfer vibration of the voice coil.