CN206596222U

CN206596222U - Loudspeaker module

Info

Publication number: CN206596222U
Application number: CN201720280996.5U
Authority: CN
Inventors: 苏涛; 张军
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2017-03-21
Filing date: 2017-03-21
Publication date: 2017-10-27
Anticipated expiration: 2027-03-21

Abstract

The utility model discloses a kind of loudspeaker module, it is related to electro-acoustic product technical field, including shell, loudspeaker monomer is contained in the shell, whole module inner chamber is divided into two cavitys of the preceding operatic tunes and the rear operatic tunes by the loudspeaker monomer, the shell is combined into by least two housings, the periphery of one of those housing is provided with the ultrasound lines that another housing adjacent thereto is combined, the position of the ultrasound lines correspondence rear operatic tunes is provided with the first opening, after this two housings are combined, formed at first opening and connect the rear operatic tunes and extraneous gas channel.The utility model loudspeaker module solves loudspeaker module complex manufacturing in the prior art, and the technical problem such as production cost height, the diaphragm oscillations balance of the utility model loudspeaker module is good, while simple production process, production cost is low, the market competitiveness is strong.

Description

Loudspeaker module

Technical field

The utility model is related to electro-acoustic product technical field, more particularly to a kind of loudspeaker module.

Background technology

Loudspeaker module is the important acoustic element of portable electric appts, for completing between electric signal and voice signal Conversion, be a kind of energy conversion device.Existing loudspeaker module includes shell and the loudspeaker monomer being housed in shell, Whole module inner chamber is divided into outside two cavitys of the preceding operatic tunes and the rear operatic tunes, preceding operatic tunes connection loudspeaker module by loudspeaker monomer Boundary.Substantial amounts of heat can be produced during loudspeaker monomer works, can raise the gas expansion air pressure in the rear operatic tunes, from And cause the preceding operatic tunes and the air pressure imbalance in the rear operatic tunes, cause amplitude above and below vibrating diaphragm asymmetric, influence loudspeaker monomer is just Often work.In order to balance the preceding operatic tunes and the air pressure in the rear operatic tunes, the symmetry of diaphragm oscillations is kept, it is necessary to one is opened on shell The operatic tunes is in communication with the outside after individual leak, guarantee, the existing generally circular hole of leak, and one is embedded in shell injection molding Individual cylinder enters son, and will enter sub- removal after outer casing forming cooling forms circular leak.

There is following defect in process of production in the technical scheme of existing circular leak：

First, circular leak itself acoustic resistance is smaller, loudspeaker module can be caused to produce gas leakage, it is necessary to which extra paste damping To increase acoustic resistance, so as to cause the increase of material and cost；

2nd, the shell with leak is in shaping, it is necessary to which extra enter son using circle, and technique is relative complex, so as to make Into the increase of shell cost.

Utility model content

For disadvantages described above, technical problem to be solved in the utility model is to provide a kind of loudspeaker module, and this raises one's voice Device module on shell without increasing the air pressure balance that leak also ensure that the preceding operatic tunes and the rear operatic tunes, while shell processes work Skill is simple, and production cost is low.

In order to solve the above technical problems, the technical solution of the utility model is：

Loudspeaker monomer is contained in a kind of loudspeaker module, including shell, the shell, the loudspeaker monomer will be whole Individual module inner chamber is divided into two cavitys of the preceding operatic tunes and the rear operatic tunes, and the shell is combined into by least two housings, therein The periphery of one housing is provided with the ultrasound lines being combined with another housing adjacent thereto, the ultrasound lines correspondence institute The position of the rear operatic tunes is stated provided with the first opening, it is described to form connection after this two housings are combined, at first opening The operatic tunes and extraneous gas channel afterwards.

Wherein, first opening disconnects being formed in this place for the ultrasound lines.

Wherein, first opening is the groove being arranged in the ultrasound lines.

Wherein, the housing provided with the ultrasound lines is provided with side wall, and the ultrasound lines are arranged on the end of the side wall On face.

Wherein, the shell includes the first housing and the second housing being combined together, and the ultrasound lines are arranged on described On the side wall of first housing.

Wherein, the inner side in the sidewall end face of first housing is provided with the positioning boss protruded to second housing, institute Ultrasound lines are stated to be arranged on the positioning boss；The position of the side-wall outer side of correspondence first housing is set on second housing The positioning barricade of oriented first case protrusion, the positioning barricade is located at the outside of the positioning boss.

Wherein, the outer surface of first housing is flushed with the outer surface of second housing.

Wherein, the position of the ultrasound lines correspondence rear operatic tunes is additionally provided with the second opening, electrically connects the loudspeaker list The FPCB of body and external circuit is at second opening through painting fluid sealant is sealed at second opening.

Employ after above-mentioned technical proposal, the beneficial effects of the utility model are：

Because the shell of the utility model loudspeaker module is combined into by least two housings, one of housing Periphery is provided with ultrasound lines, and the ultrasound lines position corresponding with the rear operatic tunes is provided with the first opening, after two housings are combined, first The operatic tunes and extraneous gas channel after connection are formed at opening.When loudspeaker module works, the air-flow formed at the first opening Passage can play a part of inside and outside airflow, and equivalent to leak of the prior art, the utility model passes through in ultrasound Set opening that there is advantages below compared with prior art to carry out the technical scheme of inside and outside airflow on line：

First, the gas channel in the utility model is gap structure, and its acoustic resistance is larger, it is not necessary to extra to paste damping, from And the production cost of product is reduced, improve the competitiveness of product in market；

2nd, the moulding process of shell need not be simplified additionally using son is entered in outer casing forming, so as to reduce shell Production cost, further improve the competitiveness of product in market.

In summary, the utility model loudspeaker module solves loudspeaker module complex manufacturing in the prior art, The technical problems such as production cost height, the diaphragm oscillations balance of the utility model loudspeaker module is good, while simple production process, Production cost is low, and the market competitiveness is strong.

Brief description of the drawings

Fig. 1 is the decomposition texture schematic diagram of the utility model loudspeaker module；

Fig. 2 is Fig. 1 constitutional diagram；

Fig. 3 is Fig. 2 line A-A sectional view；

Fig. 4 is Fig. 3 B portions enlarged drawing；

In figure：10th, the first housing, the 12, ultrasound lines, 120, first opening, the 122, second opening, 14, side wall, 140, positioning Boss, the 20, second housing, 22, positioning barricade, 30, loudspeaker monomer, 40, FPCB, 50, the rear operatic tunes, 60, gas channel.

Embodiment

With reference to the accompanying drawings and examples, the utility model is expanded on further.

The inner side being related in this specification refers to close to the side at module center, and outside refers to the side away from module center.

As Fig. 1 and Fig. 2 jointly shown in, a kind of loudspeaker module, including shell, shell combined by least two housings and Into in present embodiment, shell is made up of the first housing 10 and the second housing 20 being combined together, the first housing 10 and second Loudspeaker monomer 30 is contained in the space that housing 20 is surrounded.Whole module inner chamber is divided into the preceding operatic tunes by loudspeaker monomer 30 Two cavitys of (not shown) and the rear operatic tunes 50 (referring to Fig. 3), the preceding operatic tunes goes out acoustic aperture by module and communicated with the external world.

Common shown as shown in Figure 1, Figure 3 and Figure 4, the periphery of the first housing 10 was provided with along surpassing that the edge of the first housing 10 extends Sound ray 12, i.e., the periphery of one of housing (the first housing 10) is provided with and another housing (the second housing 20) adjacent thereto The ultrasound lines being combined.The position corresponding with the rear operatic tunes 50 of ultrasound lines 12 is provided with the first opening 120, when the first housing 10 and the After two housings 20 are combined, the operatic tunes 50 and extraneous gas channel 60, the gas channel 60 after connection are formed at the first opening 120 For gap structure, acoustic resistance is larger, it is not necessary to paste damping, while can also be changed by changing the length of the first opening 120 Acoustic resistance, so as to meet the acoustic performance requirements of loudspeaker module.

As Fig. 1 and Fig. 4 jointly shown in, present embodiment preferably first opening 120 be ultrasound lines 12 disconnect formation in this place, Ultrasound lines are not provided with this.First opening can also be the ultrasound at the groove being arranged in ultrasound lines 12, i.e. the first opening The height of line is relatively low relative to other positions, and dissolved state is relatively poor, after the first housing 10 is combined with the second housing 20 Gas channel can be formed, plays a part of leak.

Common shown as shown in Figure 1, Figure 3 and Figure 4, the periphery of the first housing 10 is provided with side wall 14, ultrasound lines in present embodiment 12 are arranged on the end face of side wall 14.The inner side of the end face of further side wall 14 is provided with the positioning boss protruded to the second housing 20 140, ultrasound lines 12 are arranged on positioning boss 140, and the position in the outside of 20 respective side wall end face of the second housing 14 is provided with to first The raised positioning barricade 22 of housing 10, after the first housing 10 and the combination of the second housing 20, positioning barricade 22 is located at positioning boss 140 outside, and the outer surface of the first housing 10, the i.e. outer surface of side wall 14 flush with the outer surface of the second housing 20.It is fixed The design of position boss and positioning barricade can play a part of positioning in module group assembling, be conducive to improving the uniformity of product, While outside excessive glue during ultrasound can also be prevented, the yield of profile is improved；And cause gas channel 60 to be curved structure, be conducive to Increase acoustic resistance, prevent dust and other impurities etc. from entering the rear operatic tunes from gas channel 60.

As Fig. 1 and Fig. 2 jointly shown in, loudspeaker monomer 30 is electrically connected with FPCB (flexible print circuit board) 40, FPCB40 End pass the rear operatic tunes 50 and electrically connected with external circuit, the position that the correspondence of ultrasound lines 12 FPCB40 is passed is provided with the second opening 122, the length of the second opening 122 is adapted with FPCB40 through the width at housing position, the first housing 10 and the second housing 20 With reference to rear, gluing sealing, i.e., the gluing between FPCB40 and the first housing 10 and the second housing 20 are carried out at the second opening 122 Sealing.

The utility model sets disconnection mouth in ultrasound lines, and housing forms the operatic tunes and the external world after connection in this place after combining Gas channel, play a part of leakage, so as to no longer need to set leak on housing, simplify the processing work of housing Skill, damps while no longer needing to paste, reduces the use of material, so as to reduce the production cost of loudspeaker module, improves The market competitiveness of loudspeaker module.

This specification is only that the technical solution of the utility model is carried out by taking the loudspeaker module of above-mentioned two shell structure as an example For example, the technical solution of the utility model is not limited in the loudspeaker module of above-mentioned two shell structure in practical application, The loudspeaker module of three shell structures is applicable to, it is any all to use this by ultrasound lines come sealed loudspeaker module The technical scheme of utility model, those skilled in the art is according to the elaboration of above-described embodiment, it is not necessary to pay any creativeness Work the technical solution of the utility model can be just applied in the loudspeaker module of other structures, therefore no matter loudspeaker mould Whether the other structures of group are identical with above-described embodiment, as long as mouth is disconnected by being set in ultrasound lines, to realize leakage The product of effect is each fallen within protection domain of the present utility model.

The utility model is not limited to above-mentioned specific embodiment, and one of ordinary skill in the art visualizes from above-mentioned Hair, without performing creative labour, a variety of conversion made are all fallen within protection domain of the present utility model.

Claims

1. contain loudspeaker monomer in loudspeaker module, including shell, the shell, the loudspeaker monomer is by whole module Inner chamber is divided into two cavitys of the preceding operatic tunes and the rear operatic tunes, and the shell is combined into by least two housings, one of institute The periphery for stating housing is provided with the ultrasound lines being combined with another housing adjacent thereto, it is characterised in that the ultrasound lines The position of the correspondence rear operatic tunes is provided with the first opening, after this two housings are combined, the company of being formed at first opening Lead to the rear operatic tunes and extraneous gas channel.

2. loudspeaker module according to claim 1, it is characterised in that described first is open as the ultrasound lines in this place Disconnect and being formed.

3. loudspeaker module according to claim 1, it is characterised in that first opening is to be arranged on the ultrasound lines On groove.

4. the loudspeaker module according to Claims 2 or 3, it is characterised in that on the housing provided with the ultrasound lines Provided with side wall, the ultrasound lines are arranged on the end face of the side wall.

5. loudspeaker module according to claim 4, it is characterised in that the shell includes the first shell being combined together Body and the second housing, the ultrasound lines are arranged on the side wall of first housing.

6. loudspeaker module according to claim 5, it is characterised in that set on the inside of the sidewall end face of first housing The positioning boss of the oriented second housing protrusion, the ultrasound lines are arranged on the positioning boss；On second housing The position of the side-wall outer side of correspondence first housing is provided with the positioning barricade to first case protrusion, the positioning barricade Positioned at the outside of the positioning boss.

7. loudspeaker module according to claim 6, it is characterised in that the outer surface of first housing and described the The outer surface of two housings is flushed.

8. loudspeaker module according to claim 1, it is characterised in that the position of the ultrasound lines correspondence rear operatic tunes It is additionally provided with the second opening, electrically connects the FPCB of the loudspeaker monomer and external circuit at second opening through described Fluid sealant is applied at second opening to be sealed.