Sound generator

Patent metadata

Field	Value
Publication number	US-9877093-B2
Application number	US-201514827655-A
Country	US
Kind code	B2
Filing date	Aug 17, 2015
Priority date	Jan 6, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A linear vibrator includes a stator having a housing including a receiving space therein, a moveable unit, an elastic member suspending the moveable unit in the receiving space, and a protection member located between the stator and the moveable unit. The protection member forms a first bevel along a vibration direction of the moveable unit, one of the stator and the moveable unit includes a second bevel corresponding to the first bevel. The second bevel keeps a distance from the first bevel for rubbing each other when the linear vibrator falls.

First claim

What is claimed is:

1. A sound generator, comprising:
a housing having a receiving space therein;
a speaker unit accommodated in the receiving space, the speaker unit comprising a bottom, a top opposite to the bottom, and a side connected between the top and the bottom and further perpendicular to the bottom;
a conductive terminal assembled with the speaker unit for electrically connecting the speaker unit to an external circuit, the conductive terminal comprising a first pad and a second pad both mounted on the bottom of the speaker unit, a connecting beam mounted on attached onto the side of the speaker unit for electrically connecting the first pad and the second pad; the connecting beam including a main body perpendicular to the first pad and the second pad, a first transition portion connecting one end of the main body to the first pad, and a second transition portion connecting another end of the main body to the second pad.

2. The sound generator as described in claim 1 , wherein the conductive terminal further comprises an extending portion extending from the second pad along a direction far away from the speaker unit.

3. The sound generator as described in claim 1 , wherein a joint of the first transition portion and the main body forms a first recess, and a joint of the second transition portion and the main body forms a second recess for reducing stress concentration.

4. The sound generator as described in claim 1 , wherein the first pad comprises a first through hole, and the bottom of the speaker unit comprises a first post for engaging with the first through hole.

5. The sound generator as described in claim 4 , wherein the bottom of the speaker unit comprises a first step, and the first post is positioned on the first step.

6. The sound generator as described in claim 1 , wherein the second pad comprises a second through hole, and the bottom of the speaker unit comprises a second post for engaging with the second through hole.

7. The sound generator as described in claim 6 , wherein the bottom of the speaker unit comprises a second step, and the second post is positioned on the second step.

8. The sound generator as described in claim 2 , wherein the extending portion includes a contacting member, and a positioning portion disposed at a distal end thereof.

Assignees

• Wang Chengliang
• Zhang Fuhu
• Aac Technologies Pte Ltd

Inventors

• Wang Chengliang
• Zhang Fuhu

Classifications

• H04R31/006

  Interconnection of transducer parts (of diaphragm and outer suspension by moulding H04R31/003) · CPC title

• H04R1/02 Primary

  Casings; Cabinets {; Supports therefor;} Mountings therein (H04R1/28 takes precedence {; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075}) · CPC title

• H04R1/021 Primary

  incorporating only one transducer · CPC title

• H04R2499/11

  Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's · CPC title