CN202617345U

CN202617345U - Bone-conduction microphone

Info

Publication number: CN202617345U
Application number: CN 201220196069
Authority: CN
Inventors: 许王华; 贺晶
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2012-05-04
Filing date: 2012-05-04
Publication date: 2012-12-19
Anticipated expiration: 2022-05-04

Abstract

The utility model relates to a bone-conduction microphone, comprising a magnet yoke with circular-ring-shaped magnet yoke sidewalls, a magnet group module and an elastic piece both assembled on the magnet yoke, and a mass block suspended over the magnet group module through the elastic piece; and the elastic piece comprises a circular-ring-shaped body part for supporting the mass block and at least three soldering lugs extending downwards from the body part to be fastened and partially overlapped on the magnet yoke sidewalls. The bone-conduction microphone is simple in structure, high in sensitivity, and simultaneously capable of receiving sound information in surroundings.

Description

Bone-conduction microphone

[technical field]

The utility model relates to a kind of transducer, relates in particular to the bone-conduction microphone in a kind of transducer.

[background technology]

The receiver that is used for various communication apparatus at present is air-conduction type; Promptly acoustic pressure is acted on acceptor's the ear-drum through air transmitted; By ear bones, the cochlea of ear-drum through the people, sound imports people's brain into the most at last. and the subject matter of air-conduction type receiver is, must it is buckled on the auricle (earphone) or get lodged in duct mouth (earplug) during use; Like this; When the people puts on earphone or earplug, just can not listen attentively to effectively, analyze acoustic information from surrounding environment, make some should hear that the service condition that must understand environmental information of living in again from the communication equipment voice signal can not satisfy.

Therefore, be necessary a kind of new bone-conduction microphone to be provided to the problems referred to above.

[utility model content]

The purpose of the utility model is to design a kind of simple in structure, highly sensitive bone-conduction microphone, and this bone-conduction microphone can be taken into account the acoustic information that receives in the surrounding environment simultaneously.

A kind of bone-conduction microphone; It comprises that the yoke that is provided with circular ring type yoke sidewall, assembly are suspended in the mass of said magnetic pack module top in the magnetic pack module of said yoke, shell fragment and through shell fragment, said shell fragment comprise the circular ring type body that is used to support mass and at least three from this body to extending below fixing and partially overlapping the weld tabs of said yoke sidewall.

Preferably, said yoke comprises diapire, and said diapire derives and is positioned at the middle round boss of diapire, and said magnetic pack module comprises the coil and the magnet steel of circular ring type, and said coil is sheathed on this boss, and said magnetic steel ring is established all sides of said coil.

Preferably, said mass comprises the central part of collar plate shape and the outward extending protuberance of this central part periphery certainly, and said protuberance is immobilizated in the body of said shell fragment.

Preferably, said protuberance quantity is three, and is uniformly distributed in the periphery of said central part.

Preferably, the weld tabs quantity of said shell fragment is three, and evenly distributes along said body periphery, and weld tabs is immobilizated in the outer surface of yoke sidewall.

Preferably, said bone-conduction microphone also comprises the circuit board that is positioned at said yoke below, and said coil is through this circuit board and extraneous electrical communication.

The beneficial effect of the utility model is: this bone-conduction microphone is simple in structure, and is highly sensitive, and this bone-conduction microphone can be taken into account the acoustic information that receives in the surrounding environment simultaneously.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of bone-conduction microphone;

Fig. 2 is the stereogram of bone-conduction microphone shown in Figure 1;

Fig. 3 is the cutaway view along A-A line among Fig. 2.

[embodiment]

Below in conjunction with accompanying drawing and execution mode the utility model is described further.

As depicted in figs. 1 and 2; The utility model provides a kind of bone-conduction microphone 1 of circle; It comprises magnetic pack module 11 on said yoke 10 of yoke 10, assembly, be positioned at the circuit board 12 of said yoke 10 belows, be immobilizated in the shell fragment 13 of yoke 10 and be suspended in the mass 14 of said magnetic pack module 11 tops through shell fragment 13, and said magnetic pack module 11 comprises the coil 15 and magnet steel 16 of circular ring type.Said coil 15 electrically connects with circuit board 12; Like this; The outside ac signal that imports conducts to coil 15, in the permanent magnetic field that the magnet steel of being established said coil 15 all sides by ring 16 produces, produces alternating magnetic field, thereby makes the mass 14 that suspends through shell fragment 13 produce vibration; The signal of telecommunication so is transformed into mechanical oscillation signal, imports people's brain into through skeleton.

In conjunction with Fig. 1 and shown in Figure 3, the said yoke 10 that plays the magnetic conduction effect comprises diapire 101 and the magnetic bowl sidewall 102 of the circular ring type that extends from said diapire 101, and said diapire 101 derives the column type boss 103 that is positioned in the middle of the diapire 101.Said coil 15 is sheathed on this boss 103, and said magnet steel 16 rings are located at all sides of said coil 15, and said magnet steel 16 and coil 15 central shaft settings altogether, and this boss 103 plays the effect of the magnetic force that increases coil 15 generations.

Said shell fragment 13 comprise the circular ring type body 131 that is used to support mass 14 and at least three from this body 131 to extending below fixing and partially overlapping the weld tabs 132 of said yoke sidewall 102; Preferably; The quantity of said weld tabs 132 is three; And evenly distribute along said body 131 peripheries, and weld tabs 132 is immobilizated in the outer surface of yoke sidewall 102.Said mass 14 comprises the central part 141 of collar plate shape and the outward extending protuberance 142 of these central part 141 peripheries certainly; Said protuberance 142 is immobilizated in the body 131 of said shell fragment 13; Preferably; In the present embodiment, said protuberance 142 quantity are three, and the periphery of the said central part 141 that evenly distributes.

The utility model provides a kind of bone-conduction microphone 1 of circle; Rectangle bone-conduction microphone before relatively, the monnolithic case size can be done littler, and internal structure is compact more also; The ring-like coil 15 of its inner circular is total to central shaft setting with magnet steel 16 can provide better magnetic property; Mass 14 is welded on the shell fragment through a plurality of protuberances 142, makes shell fragment 13 stressed more even, is not easy to cause shell fragment 13 stress property destructions; Improved the life-span and the performance of bone-conduction microphone 1, and this bone-conduction microphone 1 can be taken into account the acoustic information that receives in the surrounding environment simultaneously.

Above-described only is the preferred embodiments of the utility model; Should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; Can also make improvement, but these all belong to the protection range of the utility model.

Claims

1. bone-conduction microphone; It is characterized in that; It comprises that the yoke that is provided with circular ring type yoke sidewall, assembly are suspended in the mass of said magnetic pack module top in the magnetic pack module of said yoke, shell fragment and through shell fragment, said shell fragment comprise the circular ring type body that is used to support mass and at least three from this body to extending below fixing and partially overlapping the weld tabs of said yoke sidewall.

2. bone-conduction microphone according to claim 1; It is characterized in that: said yoke comprises diapire; Said diapire derives and is positioned at the middle round boss of diapire; Said magnetic pack module comprises the coil and the magnet steel of circular ring type, and said coil is sheathed on this boss, and said magnetic steel ring is established all sides of said coil.

3. bone-conduction microphone according to claim 2 is characterized in that: said mass comprises the central part of collar plate shape and the outward extending protuberance of this central part periphery certainly, and said protuberance is immobilizated in the body of said shell fragment.

4. bone-conduction microphone according to claim 3 is characterized in that: said protuberance quantity is three, and is uniformly distributed in the periphery of said central part.

5. bone-conduction microphone according to claim 1 is characterized in that: the weld tabs quantity of said shell fragment is three, and evenly distributes along said body periphery, and weld tabs is immobilizated in the outer surface of yoke sidewall.

6. according to claim 4 or 5 described bone-conduction microphones, it is characterized in that: said bone-conduction microphone also comprises the circuit board that is positioned at said yoke below, and said coil is through this circuit board and extraneous electrical communication.