# US 2014/0153771 A1 · Suspension support structure of multi-functional type vibration actuator

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- Number: US 2014/0153771 A1
- Document ID: US20140153771A1
- Status: Published application
- Kind: A1
- Application number: 14/093,295
- Filed: 2013-11-29
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: Namiki Seimitsu Houseki Kabushiki Kaisha
- Applicants: Namiki Seimitsu Houseki Kabushiki Kaisha
- Inventors: Kiyoshi OHASHI; Yuichi HASHIMOTO; Takayuki KUMAGAI; Naoki TSUSHIMA
- Web page: https://patentgrep.com/patent/US20140153771A1

## CPC

- H04R 9/025: {Magnetic circuit}
- H04R 9/06: Loudspeakers
- H04R 2209/027: Electrical or mechanical reduction of yoke vibration
- H04R 2400/11: Aspects regarding the frame of loudspeaker transducers
- H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)

## Abstract

Provided is a multi-functional type vibration actuator capable of stabilizing behavior of a magnetic circuit unit by preventing stress from concentrating on a connecting portion in a frame-shaped suspension. In the frame-shaped suspension, a plurality of support portions are formed to configure the connecting portion, and a strength of the connecting portion is improved by a suspension fixing portion and the support portions, thereby stabilizing the behavior of the magnetic circuit unit.

## Claims

### Claim 1

A multi-functional type vibration actuator comprising:
a sound reproduction unit which includes a diaphragm in which a voice coil is provided; and
a magnetic circuit unit which includes a yoke on which a magnet is provided, the magnetic circuit unit being supported by a frame-shaped suspension in a housing on which the sound reproduction unit is fixed,
wherein each of connecting portions between the frame-shaped suspension and the housing is formed by a plurality of supports.

### Claim 2 (depends on 1)

The multi-functional type vibration actuator of claim 1, wherein each of the connecting portions is integrally formed with the housing.