Linear vibration motor
US-10819202-B2 · Oct 27, 2020 · US
Sound vibration actuator
US11569722B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11569722-B2 |
| Application number | US-201916704039-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 5, 2019 |
| Priority date | Oct 24, 2018 |
| Publication date | Jan 31, 2023 |
| Grant date | Jan 31, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A sound vibration actuator includes: a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part; a coil part coupled to the top casing part in such a manner as to receive power from the outside; a magnet part disposed in the internal space of the casing and having a magnet and a weight; an elastic member whose one surface coupled to the magnet part; and a weight part coupled to the coil part. The sound vibration actuator can be varied in coupling ways of the components thereof to generate vibrations in a high frequency band as well as a low frequency band.
First claim
Opening claim text (preview).
What is claimed is: 1. A sound vibration actuator comprising: a casing ( 10 ) having an internal space formed by an underside casing part ( 10 a ), a side periphery casing part ( 10 b ), and a top casing part ( 10 c ); a coil part ( 20 ) coupled to the top casing part ( 10 c ) in such a manner as to receive power from the outside; a magnet part ( 30 ) disposed around the coil part ( 20 ) in the internal space of the casing ( 10 ) and having a magnet ( 32 ) and a weight ( 34 ); an elastic member ( 40 ) whose one surface coupled to the magnet part ( 30 ); and a weight part ( 50 ) coupled to the coil part ( 20 ), wherein the top casing part ( 10 c ) is formed at a top side of the casing ( 10 ) and vibrated at a sound generating frequency to generate sound, wherein the weight ( 34 ) and the weight part ( 50 ) are provided to not face each other in an up-and-down vibration direction. 2. The sound vibration actuator according to claim 1 , wherein the coil part ( 20 ) comprises a coil ( 22 ) and a coil yoke ( 24 ). 3. The sound vibration actuator according to claim 2 , wherein the coil yoke ( 24 ) is disposed under the coil ( 22 ). 4. The sound vibration actuator according to claim 3 , wherein the weight part ( 50 ) is disposed on an underside of the coil yoke ( 24 ) in the up-and-down vibration direction. 5. The sound vibration actuator according to claim 2 , wherein the top casing part ( 10 c ) has a protrusion ( 11 ) protruding from a center thereof in such a manner as to seat the coil ( 22 ) and the coil yoke ( 24 ) thereonto. 6. The sound vibration actuator according to claim 1 , wherein the underside casing part ( 10 a ) is fixed to an external sound generator (S). 7. The sound vibration actuator according to claim 1 , wherein the weight part ( 50 ) is made of a material having a higher specific gravity than the coil part ( 20 ) and the top casing part ( 10 c ).
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- What does patent US11569722B2 cover?
- A sound vibration actuator includes: a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part; a coil part coupled to the top casing part in such a manner as to receive power from the outside; a magnet part disposed in the internal space of the casing and having a magnet and a weight; an elastic member whose one surface coupled to…
- Who is the assignee on this patent?
- Mplus Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04R9/025. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 31 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).