CN202488689U

CN202488689U - Sounder module

Info

Publication number: CN202488689U
Application number: CN201220058569XU
Authority: CN
Inventors: 陈刚; 邵明辉; 许超; 徐江; 苗青; 牟宗君
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2012-02-22
Filing date: 2012-02-22
Publication date: 2012-10-10
Anticipated expiration: 2022-02-22

Abstract

The utility model discloses a sounder module which comprises a sounder unit and an external casing which is used for accommodating the sounder unit. The sounder unit comprises a magnetic circuit system, the magnetic circuit system comprises a concentrating flux plate, a magnet and a magnet yoke which are sequentially assembled, and the external casing of the sounder module forms a magnetic circuit system framework which is used for fixing a sounder. The magnetic circuit system and the external casing are of an integrated injection molding structure, so that the internal dimensions of the sounder unit can be increased, and the product design is simplified.

Description

The acoustical generator module

Technical field

The utility model relates to electroacoustic switch technology field, and is concrete, relates to a kind of acoustical generator module.

Background technology

Along with the fast development in consumer electronics product market, a large amount of miniature electro-acoustic class components and parts have obtained using widely like acoustical generator; In the practical application, generally the acoustical generator unit is placed in the module that is contained by external shell, with the acoustical behavior of coupling acoustical generator.

This acoustical generator modular structure, because the designing requirement of acoustical generator cell body physical dimension harmony cavity space, the volume size of acoustical generator unit is restricted, product structure design is comparatively complicated simultaneously.

Therefore, be necessary existing acoustical generator modular structure and packaging technology are improved, to avoid above-mentioned defective.

The utility model content

The utility model technical problem to be solved provides a kind of under the certain situation of acoustical generator module size, increases the size of phonation unit.

To achieve these goals, the utility model provides following technical scheme:

A kind of acoustical generator module; Comprise acoustical generator unit and the external shell that holds said acoustical generator unit; Said acoustical generator unit comprises magnetic circuit system; Said magnetic circuit system comprises magnetic conductive board, magnet and the yoke of assembling successively, and the external shell of said acoustical generator module forms the magnetic circuit system framework of fixing said acoustical generator; Said magnetic circuit system and said external shell are the one injection structure.

As a kind of improvement, said magnetic circuit system is microscler, and the corresponding said yoke of the major axis side of said magnetic circuit system is provided with peristome, corresponding said magnetic conductive board and the said magnet installed of the peristome of said yoke; Said external shell and said magnetic conductive board, said magnet and the injection moulding of said yoke one.

As a kind of improvement, said magnetic conductive board is provided with the injection molding material of said case body.

As a kind of improvement, said external shell comprises first housing and second housing.

As a kind of improvement, said magnetic circuit system is a two magnetic route structure, comprises outer magnetic conductive board, external magnet and interior magnetic conductive board, the internal magnet assembled in proper order respectively at said yoke; Said outer magnetic conductive board, external magnet, said yoke and the injection moulding of said external shell one.

Owing to adopted technique scheme; The acoustical generator module that the utility model provided; The framework of the double acoustical generator unit magnetic circuit system that fixes of the external shell of acoustical generator module, and magnetic circuit system and external shell be the one injection structure, can reduce acoustical generator unit inside dimension; Simplify product design, helped increasing the size of phonation unit.

Description of drawings

The decomposing schematic representation of the acoustical generator module that Fig. 1 relates to for the utility model.

The cutaway view of the acoustical generator module that Fig. 2 relates to for the utility model.

Fig. 3 assembles sketch map for the external magnetic circuit of the acoustical generator module that the utility model relates to.

Acoustical generator module magnetic circuit system that Fig. 4 relates to for the utility model and the sketch map after the first housing moulding.

Fig. 5 is that the A-A of Fig. 4 is to cutaway view.

Embodiment

Specify the concrete structure of the utility model below in conjunction with accompanying drawing.

Embodiment:

Like Fig. 1-shown in Figure 5, the described acoustical generator module of the utility model,

A kind of acoustical generator module comprises acoustical generator unit and the external shell that holds said acoustical generator unit, external shell preferably include first housing 11 and with second housing 12 of first shell; The acoustical generator unit comprises vibrational system and magnetic circuit system; Wherein the vibrating diaphragm system comprises the vibrating diaphragm that is formed by pars intermedia 21 and edge part 22; Be arranged on the support component 23 on the edge part 22; And be arranged on the elastomeric element 24 between edge part 22 and the lower house 12, support component 23 preferred copper rings wherein, elastomeric element 24 preferred foams; Magnetic circuit system comprises successively magnetic conductive board, magnet and the yoke of assembling, and the magnetic circuit system in the present embodiment is a two magnetic route structure, comprises respectively outer magnetic conductive board 311, external magnet 321 and interior magnetic conductive board 312, the internal magnet 322 assembled successively with yoke 33.

In the present embodiment, first housing 11 forms the framework of fixing said acoustical generator unit magnetic circuit system; Said magnetic circuit system and said first housing 11 are the one injection structure.

This design, the framework of first housing, the 11 double acoustical generator unit magnetic circuit systems that fix, and magnetic circuit system and first housing 11 be the one injection structure, under the certain situation of module size, helps increasing the acoustical generator cell size, simplified product design.

Concrete, preferred magnetic circuit system is microscler, the said yoke 33 corresponding in the major axis side of magnetic circuit system is provided with peristome 331, the peristome 331 corresponding outer magnetic conductive board 311 and the external magnets 321 installed of yoke 33; First housing 11 and outer magnetic conductive board 311, magnet 321 and yoke 33 one injection mouldings.This design, the injection molding material of first housing 11 also can wrap up said magnetic circuit system, can better realize the integrally-built firm degree of the magnetic circuit system and first housing.

In this embodiment; External shell also can be formed for the parts of other structure or quantity; The acoustical generator unit of two magnetic route structure is merely preferred scheme; Also can select the magnetic structure of a magnet in the present embodiment, like internal magnetic circuit or external magnetic circuit design, the neither enforcement that influences the utility model creation.

The external shell of the acoustical generator module in the present embodiment and the magnetic circuit system of acoustical generator unit adopt following fit to assemble:

A. at first with said magnetic conductive board, said magnet and said magnetic 33 yoke assembled in sequence;

B. said magnetic conductive board, magnet and the yoke after will assembling put into the injection moulding tool that forms said external shell;

C. add injection molding material, the external shell of one-body molded said magnetic circuit system and said acoustical generator module.

This assembly method through magnetic circuit system assembled in advance and one-body molded with external shell, has been simplified packaging technology and operation, has reduced production cost.

Specific to the acoustical generator unit of the two magnetic route structure in the present embodiment, preferred external shell adopts following fit to assemble:

A is at first with outer magnetic conductive board 311, external magnet 321 and yoke 33 assembled in sequence;

B. the outer magnetic conductive board 311 after will assembling, external magnet 321 and yoke 33 are put into the injection moulding tool that forms said external shell;

C. add injection molding material, the external shell of one-body molded said magnetic circuit system and said acoustical generator module;

D. with interior magnetic conductive board 312, internal magnet 322 and yoke 33 assembled in sequence.

The acoustical generator unit of two magnetic route structure adopts above fit to assemble, and technology is more simple, better realizes the technique effect that the utility model is created.

As preferred scheme, external shell comprises first housing 11 and second housing 12, said magnetic circuit system and the 11 one injection mouldings of said first housing.This design, technology are more simple.

In this implementation process; More than be merely utility model practical implementation case; Be not limited to the utility model,, all should include in the protection range of putting down in writing in claims as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed.

Claims

1. acoustical generator module; Comprise acoustical generator unit and the external shell that holds said acoustical generator unit; Said acoustical generator unit comprises magnetic circuit system; Said magnetic circuit system comprises magnetic conductive board, magnet and the yoke of assembling successively, it is characterized in that, the external shell of said acoustical generator module forms the framework of the magnetic circuit system of fixing said acoustical generator; Said magnetic circuit system and said external shell are the one injection structure.

2. acoustical generator module according to claim 1 is characterized in that, said magnetic circuit system is microscler, and the corresponding said yoke of the major axis side of said magnetic circuit system is provided with peristome, corresponding said magnetic conductive board and the said magnet installed of the peristome of said yoke; Said external shell and said magnetic conductive board, said magnet and the injection moulding of said yoke one.

3. acoustical generator module according to claim 2 is characterized in that said magnetic conductive board is provided with the injection molding material of said case body.

4. according to the described acoustical generator module of the arbitrary claim of claim 1-3, it is characterized in that said external shell comprises first housing and second housing.

5. according to the described acoustical generator module of the arbitrary claim of claim 1-3, it is characterized in that said magnetic circuit system is a two magnetic route structure, comprise outer magnetic conductive board, external magnet and interior magnetic conductive board, the internal magnet assembled in proper order respectively at said yoke; Said outer magnetic conductive board, external magnet, said yoke and the injection moulding of said external shell one.