CN207070305U - Loudspeaker module - Google Patents

Abstract

The utility model discloses a kind of loudspeaker module, including the module casing and the loudspeaker monomer being arranged in the accommodating chamber and ventilative packaging part for forming accommodating chamber, extend side wall on the inwall of the module casing, the side wall surrounds to form storage tank, sound-absorbing material is filled with the storage tank, the heat-sealable top surface together in the side wall of ventilative packaging part, the top surface of the side wall are provided with clinoplain.The utility model in the top surface for forming the side wall of storage tank by setting clinoplain, to increase the hot melt faying face of ventilative packaging part and side wall, it is thinned, on the premise of increase storage tank volume increase sound-absorbing material loading in side wall, ventilative packaging part and the hot melt bonded area of side wall are not reduced, ensure the reliable fixation of ventilative packaging part, prevent it from coming off.

Description

Loudspeaker module

Technical field

It the utility model is related to speaker technology field.More particularly, to a kind of loudspeaker module.

Background technology

It is each to its due to the design requirement of the thin, light, small of complete machine, outward appearance etc. in smart mobile phone fast-developing today The size dimension and structure of device are also further harsh, it may be said that are ans inch of land is an inch of gold, and must assure that device performance again.It is reflected in On mobile phone speaker, it is desirable to which its cavity is small, but performance can't be too low.So engineers are molded by module shell The form of 0.2mm thickness steel discs obtains larger back cavity, and is partitioned into a part of volume in this limited back cavity and uses filling sound-absorbing The mode of particle obtains higher performance benefits.Sound-absorbing is particles filled in degree and back cavity that sound-absorbing particle works in back cavity Measurer has direct relation, and the particles filled amount of sound-absorbing and the volume of barricade in back cavity and hot melt screen cloth composition are closely bound up, Therefore raising of the volume to properties of product for increasing barricade as far as possible in back cavity and heating screen cloth composition has and energetically anticipated Justice.But limited at this stage by the minimum hot melt barricade width of hot melt screen cloth demand, hot melt barricade occupies many bodies in back cavity Product, causes the waste of rear cavity space.

Limited by state-of-art, the hot melt screen cloth barricade being commonly designed is horizontal plane structure, at this stage by hot melt net The limitation of the minimum hot melt barricade width of cloth demand, the width for heating barricade are generally 0.5mm, many volumes are occupied in back cavity, The loading for causing sound-absorbing particle reduces, and causes the waste of rear cavity space.If the width for heating barricade is reduced, net Cloth hot melting process is not easy to realize, screen cloth and hot melt barricade connection reliability surplus deficiency.

Therefore, it is necessary to the structure of loudspeaker module is improved, to fill more sound absorbers in loudspeaker Material.

Utility model content

A purpose of the present utility model is to provide a kind of improved loudspeaker module.

According to one side of the present utility model, there is provided a kind of loudspeaker module, including formation accommodating chamber Module casing and the loudspeaker monomer being arranged in the accommodating chamber and ventilative packaging part, on the inwall of the module casing Extend side wall, the side wall is surrounded to form storage tank, and sound-absorbing material, the ventilative packaging part hot melt are filled with the storage tank Seal and be provided with clinoplain in the top surface of the side wall, the top surface of the side wall.

Preferably, the top surface of the side wall is clinoplain.

Preferably, the width of the side wall is less than 0.5mm, and the width of the clinoplain is at least 0.5mm.

Preferably, the top surface of the side wall is horizontal plane and clinoplain combining structure.

Preferably, the width of the side wall is less than 0.5mm, the width of the horizontal plane and the width sum of clinoplain At least 0.5mm.

Preferably, accommodating chamber is separated into the preceding operatic tunes and the rear operatic tunes by the loudspeaker monomer, after the storage tank is located at In the operatic tunes.

Preferably, the ventilative packaging part is non-woven fabrics.

Preferably, the sound-absorbing material is zeolite granular or activated carbon granule.

Preferably, the particle size range of the sound-absorbing material is 0.1~0.5mm.

The beneficial effects of the utility model are as follows：

The utility model by formed storage tank side wall top surface set clinoplain, come increase ventilative packaging part with The hot melt faying face of side wall, it is thinned, on the premise of increase storage tank volume increase sound-absorbing material loading, does not reduce in side wall Sealing gland piece installing and the hot melt bonded area of side wall, ensure the reliable fixation of ventilative packaging part, prevent it from coming off.The utility model enters The combining structure that the top surface of side wall is arranged to horizontal plane and clinoplain of one step, so as to the reduction when carrying out hot melting process Requirement to heating pressure head precision, makes ventilative packaging part hot melting process easily realize, further improves the hot melt of ventilative packaging part Fixed reliability.

Brief description of the drawings

Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 shows the part-structure schematic diagram of loudspeaker module of the present utility model.

Fig. 2 shows the A-A cross-sectional views of loudspeaker module of the present utility model.

Fig. 3 shows the B portions enlarged diagram of loudspeaker module of the present utility model.

Fig. 4 shows the A-A cross-sectional views of loudspeaker module embodiment two of the present utility model.

Fig. 5 shows the B portions enlarged diagram of loudspeaker module embodiment two of the present utility model.

Embodiment

In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.

In the first embodiment of the utility model loudspeaker module shown in Fig. 1~3, the loudspeaker module includes module Housing 1, loudspeaker monomer 2, ventilative packaging part 3 and sound-absorbing material.Loudspeaker monomer 2 is arranged on the receiving of the formation of module casing 1 In chamber, and ante-chamber and back cavity are divided into, ante-chamber outwardly propagates sound by sound channel, and back cavity is anti-phase for eliminating Sound wave, processing bass etc..The other parts of the module casing 1 such as lid on module can also be fastened on module casing 1, are not shown in figure Go out, the utility model is defined not to this.The material of module casing 1 can use PC (makrolon), can also use PC With material of the composite as module casing of the composite of glass fibre, or PC and ABS (ABS resin), above-mentioned material Material can ensure that module casing has good structural stability.

As depicted in figs. 1 and 2, side wall 11 is extended on the inwall of the back cavity of module casing 1, the side wall 11 is surrounded to be formed and housed Groove 12, sound-absorbing material are filled in storage tank 12, for sponging the sound wave in incoming back cavity.In order to prevent that sound-absorbing material is calm Putting leakage in groove 12, into back cavity, the hot melt of packaging part 3 of breathing freely seals the top surface in side wall 11.Ventilative packaging part 3 is stopping sound absorber Allow air while material is spilt by connect sound-absorbing material and back cavity.Alternatively, packaging part 3 is breathed freely by nonwoven cloth material Be made, this material can either form packaging effect in structure, air can be allowed to pass therethrough again, so as to reach encapsulation and Ventilative technique effect.The utility model is not limited the specific material for packaging part of breathing freely, and those skilled in the art can To be selected according to actual performance requirement.

In order to improve the volume of storage tank 12, the quantity of increase filling sound-absorbing material, side wall 11 is thinned inventor, But this causes ventilative packaging part 3 and the contact area of side wall 11 to reduce.In order to ensure the reliable fixation of ventilative packaging part 3, side wall 11 top surface 13 is provided with clinoplain.As shown in figure 3, the top surface 13 of the side wall 11 in the present embodiment is clinoplain, to increase Big ventilative packaging part 3 and the hot melt faying face of side wall 11, increase combination power therebetween.Side wall 11 in the present embodiment Width is 0.3mm, and the width of clinoplain is at least 0.5mm, to meet the minimal-contact area needed for hot melting process, is ensured The reliability of ventilative packaging part 3 and the hot-melt adhesive paste of side wall 11.Those skilled in the art can by adjust side wall 11 width and The width of top surface 13 increases the quantity of filling sound-absorbing material, can reduce the width of side wall 11 to improve the appearance of storage tank 12 Product, while also ensure that the thermal fusing surface width between ventilative packaging part 3 and side wall 11 meets technological requirement.

Preferably, for the sound-absorbing effect of back cavity, sound-absorbing material can be zeolite structured particle or activated carbon granule. In specific embodiment, those skilled in the art can be selected using tool according to the difference for touching loudspeaker group performance requirement There are the zeolite structured particle and activated carbon granule of diverse microcosmic pore passage structure, the utility model is limited not to this.Further Ground, in order to make full use of the space of loudspeaker module back cavity, improve the sound-absorbing effect of sound-absorbing material, the particle of above-mentioned sound-absorbing material Particle size range is preferably between 0.1~0.5mm.If sound-absorbing material particle diameter is excessive, the space availability ratio of back cavity declines, if The particle diameter of sound-absorbing material is too small, then the too small reduction sound-absorbing effect of inter-granular porosity, and influences the selection of ventilative packaging part.So The grain diameter of sound-absorbing material is preferably within the above range.

Fig. 4 and Fig. 5 shows second embodiment of the present utility model, and the present embodiment and the difference of embodiment one exist The combining structure of horizontal plane and clinoplain is arranged in, the top surface 13 ' of side wall 11, and the width of side wall 11 is in the present embodiment 0.3mm, the width of horizontal plane is 0.1mm, and the width of clinoplain is at least 0.4mm.Using above-mentioned this structure, by thoroughly When top surface 13 ' is arrived in the hot melt sealing of sealing gland piece installing 3, the requirement to heating pressure head precision can be reduced, make hot melting process be more easy to realize, enter The hot melt that one step improves ventilative packaging part 3 fixes reliability.

Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above On the basis of can also make other changes in different forms, all embodiments can not be exhaustive here, It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in of the present utility model The row of protection domain.

Claims (9)

1. a kind of loudspeaker module, it is characterised in that including forming the module casing of accommodating chamber and being arranged on the accommodating chamber Indoor loudspeaker monomer and ventilative packaging part, extend side wall on the inwall of the module casing, the side wall surrounds to form appearance Groove is put, sound-absorbing material, the heat-sealable top surface together in the side wall of ventilative packaging part, the side are filled with the storage tank The top surface of wall is provided with clinoplain.

2. loudspeaker module according to claim 1, it is characterised in that the top surface of the side wall is clinoplain.

3. loudspeaker module according to claim 2, it is characterised in that the width of the side wall is less than 0.5mm, described to incline The width of tapered plane is at least 0.5mm.

4. loudspeaker module according to claim 1, it is characterised in that the top surface of the side wall is horizontal plane and inclination Plane combination structure.

5. loudspeaker module according to claim 4, it is characterised in that the width of the side wall is less than 0.5mm, the water The width in average face and the width sum of clinoplain are at least 0.5mm.

6. loudspeaker module according to claim 1, it is characterised in that accommodating chamber is separated into by the loudspeaker monomer The preceding operatic tunes and the rear operatic tunes, the storage tank are located in the rear operatic tunes.

7. loudspeaker module according to claim 1, it is characterised in that the ventilative packaging part is non-woven fabrics.

8. loudspeaker module according to claim 1, it is characterised in that the sound-absorbing material is zeolite granular or activated carbon Particle.

9. loudspeaker module according to claim 8, it is characterised in that the particle size range of the sound-absorbing material is 0.1~0.5mm.