# US 2017/0289697 A1 · Sound Generator

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- Number: US 2017/0289697 A1
- Document ID: US20170289697A1
- Status: Published application
- Kind: A1
- Application number: 15/628,698
- Filed: 2017-06-21
- Published: 2017-10-05
- Earliest claimed: 2015-11-02
- Assignees: AAC Technologies Pte. Ltd.
- Applicants: AAC Technologies Pte, Ltd.
- Inventors: Changliang Wang
- Web page: https://patentgrep.com/patent/US20170289697A1

## CPC

- H04R 9/06: Loudspeakers
- B06B 1/045: {using vibrating magnet, armature or coil system}
- H04M 1/035: {Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities}
- H04R 1/02: Casings; Cabinets {; Supports therefor;} Mountings therein (H04R1/28 takes precedence {; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075})
- H04R 9/046: {Construction}
- H04R 1/06: Arranging circuit leads; Relieving strain on circuit leads
- H04R 9/025: {Magnetic circuit}
- 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)
- B06B: METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B1/40, B23Q17/12, B24B31/06; measurement of mechanical vibrations G01H; in direction finding, locating, distance or velocity measuring G01S; {generating seismic energy G01V1/02}; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells, sirens, whistles G10K, {e.g. methods or devices for transmitting, conducting, or directing sound in general G10K11/00}; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers {for communication techniques, e.g. microphones, speakers} H04R)
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

A sound generator is disclosed. The sound generator includes a frame including a side wall forming a storage space; a voice coil connected with the frame and accommodated in the storage space, the voice coil including a coil body and a coil lead extending from coil body. The coil lead includes a fixed portion connected to the coil body; an arc portion extending from the fixed portion and a projection of the arc portion along a direction perpendicular to a vibrating direction of the voice coil at least partially located within the voice coil body; and a connecting portion extending from the arc portion and connected with the sidewall.

## Claims

### Claim 1

A sound generator, including:
a frame including a side wall forming a storage space;
a voice coil connected with the frame and accommodated in the storage space, the voice coil including a coil body and a coil lead extending from coil body, the coil lead including:
a fixed portion connected to the coil body;
an arc portion extending from the fixed portion and a projection of the arc portion along a direction perpendicular to a vibrating direction of the voice coil at least partially located within the voice coil body; and
a connecting portion extending from the arc portion and connected with the sidewall.

### Claim 2 (depends on 1)

The sound generator according to claim 1, wherein the side wall includes a protruding bump extending from an upper surface thereof along a vibration direction of the voice coil, and the connecting portion of the coil lead is bonded to the protruding bump.

### Claim 3 (depends on 2)

The sound generator according to claim 2, wherein the connecting portion is bonded to the protruding bump by wire sealing glue.

### Claim 4 (depends on 2)

The sound generator according to claim 2, wherein the connecting portion is arc-shaped and the highest point of the arc is connected to the protruding bump.

### Claim 5 (depends on 1)

The sound generator according to claim 1, wherein the fixed portion is connected to a minor axis side of the coil body.