CN212628267U

CN212628267U - Loudspeaker module

Info

Publication number: CN212628267U
Application number: CN202021343090.1U
Authority: CN
Inventors: 丁健华; 吴树文
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-02-26
Anticipated expiration: 2030-07-09

Abstract

The utility model provides a loudspeaker module, which comprises a shell with an accommodating space, a sounding component and a breathable isolating piece, wherein the sounding component and the breathable isolating piece are accommodated and fixed on the shell; the side, close to the top wall, of the bottom wall is convexly provided with a retaining wall towards the direction of the top wall, the breathable isolating piece is injected at one end, close to the top wall, of the retaining wall and divides the accommodating space into an accommodating cavity for accommodating the sounding component and a sound absorbing cavity for accommodating the sound absorbing material, the breathable isolating piece, the retaining wall and the bottom wall are enclosed to form the accommodating cavity, and the sound absorbing cavity is located between the breathable isolating piece and the top wall; the sound production subassembly includes the sound production monomer and accepts and fix the free support of sound production, and the sound production monomer has the vibrating diaphragm that deviates from the roof, and the diapire runs through and has seted up the mounting hole, and the support is fixed in the casing through the mounting hole and is fixed in the sound production monomer between diapire and the ventilative separator. Not only is the assembly convenient, but also the acoustic performance is improved.

Description

Loudspeaker module

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic field especially relates to a speaker module.

[ background of the invention ]

In the current mobile internet era, the number of intelligent mobile terminal devices is increasing continuously, and the requirements for mobile terminals are higher and higher, one of which is the sound quality function requiring high quality.

In order to obtain better acoustic effect among some technologies, often pack sound absorbing material in the inside cavity of speaker module to with ventilative separator with sound absorbing material encapsulation, for the assembly is more convenient, lead to some speaker module's structural design unreasonable, cause only very little space capacity to be used for accomodating sound absorbing material, cause the low frequency acoustic performance not good.

Therefore, there is a need to provide a new speaker module to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a speaker module, the assembly is simple and can accomodate a large amount of sound absorbing material.

In order to solve the technical problem, the technical scheme of the utility model as follows: a loudspeaker module comprises a shell with an accommodating space, a sound production assembly and a breathable isolating piece, wherein the sound production assembly and the breathable isolating piece are accommodated and fixed in the shell;

a retaining wall is convexly arranged on one side, close to the top wall, of the bottom wall towards the top wall, the breathable isolating piece is injected at one end, close to the top wall, of the retaining wall and divides the accommodating space into an accommodating cavity for accommodating the sounding assembly and a sound absorbing cavity for accommodating sound absorbing materials, the breathable isolating piece, the retaining wall and the bottom wall are enclosed to form the accommodating cavity, and the sound absorbing cavity is located between the breathable isolating piece and the top wall;

the sound production subassembly includes the sound production monomer and accepts and fix the free support of sound production, the sound production monomer has and deviates from the vibrating diaphragm of roof, the diapire runs through and has seted up the mounting hole, the support warp the mounting hole is fixed in the casing will the sound production monomer is fixed in the diapire with between the ventilative separator.

As an improvement, the support include with mounting hole adaptation and with the installation department that ventilative separator is relative and the interval sets up and certainly the installation department court the support wall that ventilative separator direction was buckled and is extended, the support wall encloses and establishes sound production monomer periphery and with sound production monomer is fixed, the vibrating diaphragm with relative just interval of installation department sets up the preceding vocal chamber of formation, sound production monomer keeps away from one side of support wall with ventilative separator butt.

As an improvement, the barricade is close to the corresponding court of one side of sound production monomer is kept away from sound production monomer's orientation sunken form with the portion of dodging of supporting the wall adaptation, support the wall and install dodge the portion and with the barricade cooperation is fixed.

As an improvement, the speaker module is including running through in proper order the lateral wall the barricade reaches the play sound passageway of support wall, it keeps away from to go out the sound passageway the free one end of sound production communicates with the external world, it is close to go out the sound passageway the free one end of sound production with preceding sound chamber intercommunication.

As an improvement, the support wall is integrally formed with the mounting portion.

As an improvement, the bottom wall and the side wall are integrally formed in an injection molding mode, and the top wall and one end, far away from the bottom wall, of the side wall are welded in an ultrasonic mode.

As an improvement, the loudspeaker module group is still including pasting locate the lateral wall and cover the sound channel is kept away from dustproof ventilative screen cloth of sound production monomer one end.

As an improvement, the bottom wall and/or the top wall is/are provided with an injection hole, the injection hole is communicated with the sound absorption cavity, and the sound absorption material is filled into the sound absorption cavity through the injection hole.

As an improvement, the injection device further comprises a sealing cover which is arranged on the injection hole in a covering mode.

As an improvement, the roof and/or the diapire still run through set up with the leak hole that the filling hole interval set up, the speaker module is still including pasting locate the roof and/or the diapire covers leak the ventilative screen cloth in hole, leak the aperture in hole and be less than the aperture of filling hole.

The beneficial effects of the utility model reside in that: the ventilating partition piece is injected at one end of the retaining wall close to the top wall, the accommodating space is divided into an accommodating cavity for accommodating the sounding component and a sound absorbing cavity for accommodating the sound absorbing material by the ventilating partition piece, the retaining wall and the bottom wall are enclosed to form the accommodating cavity, all areas except the accommodating cavity in the accommodating space can be filled with the sound absorbing material, so that a large amount of space can be filled with the sound absorbing material in the loudspeaker module in the embodiment, the acoustic performance of the loudspeaker module is improved, in addition, the ventilating partition piece is injected at one end of the retaining wall close to the top wall, the bottom wall is provided with a mounting hole in a penetrating way, the support is used for accommodating and fixing the sounding monomer, the support is fixed on the shell through the mounting hole and is fixed between the bottom wall and the ventilating partition piece, during assembly, the support only needs to be fixed on the shell through the mounting, so that the assembly steps are simplified and the assembly is simple and convenient.

[ description of the drawings ]

Fig. 1 is a schematic view of an overall structure of a speaker module according to an embodiment of the present invention;

FIG. 2 is an exploded view of the speaker module of FIG. 1;

fig. 3 is a cross-sectional view of the speaker module a-a of fig. 1;

FIG. 4 is a schematic view of the assembly of the holder and the air-permeable barrier of FIG. 1;

FIG. 5 is a schematic view of the overall structure of the stent of FIG. 1;

FIG. 6 is a schematic view of the overall structure of the upper cover in FIG. 1;

in the figure: 100. a housing; 101. an accommodating chamber; 102. a sound absorbing chamber; 103. a front acoustic chamber; 104. an injection hole; 105. a leak hole; 110. a bottom wall; 111. mounting holes; 120. a top wall; 130. a side wall; 140. retaining walls; 141. an avoidance part; 150. a sealing cover; 160. ventilating mesh cloth; 200. a sound producing assembly; 210. a sounding monomer; 211. vibrating diaphragm; 220. a support; 221. an installation part; 222. a support wall; 300. a breathable barrier; 400. a sound outlet channel; 410. dustproof ventilative screen cloth.

[ detailed description ] embodiments

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 6, an embodiment of the present invention provides a speaker module, which includes a housing 100 having an accommodating space, and a sound-generating component 200 and a ventilation spacer 300 accommodated and fixed in the housing 100.

Referring to fig. 1 to 5, the housing 100 in the present embodiment includes a bottom wall 110 and a top wall 120 that are disposed opposite to each other at an interval, and a side wall 130 that is bent and extended from the bottom wall 110 toward the top wall 120, wherein the bottom wall 110, the side wall 130, and the top wall 120 enclose the accommodating space.

Preferably, the top wall 120 is ultrasonically welded to the end of the side wall 130 remote from the bottom wall 110.

Referring to fig. 1 to 6, in the present embodiment, a retaining wall 140 is convexly disposed on one side of the bottom wall 110 close to the top wall 120 toward the top wall 120, the air-permeable partition 300 is injection-molded on one end of the retaining wall 140 close to the bottom wall 110 and divides the accommodating space into an accommodating cavity 101 accommodating the sound generating assembly 200 and a sound absorbing cavity 102 accommodating a sound absorbing material, the air-permeable partition 300, the retaining wall 140 and the bottom wall 110 enclose the accommodating cavity 101, the sound absorbing cavity 102 is located between the air-permeable partition 300 and the top wall 120, and specifically, the sound absorbing cavity 102 is enclosed by the air-permeable partition 300, the retaining wall 140, the bottom wall 110 and the top wall 120. Because all the regional homoenergetic except that hold chamber 101 in the accommodating space can fill sound absorbing material to having a large amount of spaces in making the accommodating space and can be used to filling sound absorbing material, improved speaker module's acoustic performance.

In some related arts, the air-permeable partition 300 is often placed on the side of the sound generating module 200, and the accommodating chamber 101 in which the sound generating module 200 is placed occupies a large space, so that the sound absorbing chamber 102 is too small and the acoustic performance is not significantly improved, and in some related arts, the air-permeable partition 300 does not form a part of the accommodating chamber 101, so that a part of the space between the air-permeable partition 300 and the accommodating chamber 101 is not fully utilized, so that the sound absorbing chamber 102 is too small and the acoustic performance is not significantly improved. In order to solve the above problem, the air-permeable spacer 300 in this embodiment is located on a side of the sound-generating component 200 away from the diaphragm 211, and the air-permeable spacer 300 is a part of the accommodating cavity 101, so that the sound-absorbing material can be placed in the space between the top wall 120 and the air-permeable spacer 300.

Preferably, the shape of holding chamber 101 with sound generating component 200 looks adaptation can reduce and place the space of sound generating component 200 to can leave more spaces and be used for placing sound absorbing material, so that the low frequency acoustic performance of the speaker module in this embodiment is better.

Preferably, the bottom wall 110 and the retaining wall 140 are integrally formed, preferably integrally injection molded, to simplify the production and assembly.

Referring to fig. 2 and 3, the sound generating assembly 200 in the present embodiment includes a sound generating unit 210 and a bracket 220 for accommodating and fixing the sound generating unit 210, the sound generating unit 210 has a diaphragm 211 facing away from the top wall 120, the bottom wall 110 has a mounting hole 111 penetrating therethrough, and the bracket 220 is fixed to the housing 100 through the mounting hole 111 and fixes the sound generating unit 210 between the bottom wall 110 and the air-permeable spacer 300. Because the breathable partition member 300 and the retaining wall 140 are integrally formed, during assembly, the step of gluing or welding the breathable partition member 300 to the retaining wall 140 can be omitted, and the breathable partition member 300 is made of soft materials, so that the step of gluing or welding the breathable partition member 300 to the support ring is time-consuming and labor-consuming, therefore, during assembly of the speaker module of the present embodiment, only the sound-generating unit 210 needs to be mounted on the bracket 220, and then the bracket 220 is fixed to the housing 100 through the mounting hole 111, i.e., the assembly is completed, or the sound-generating unit 210 is firstly mounted in the accommodating cavity 101 through the mounting hole, and then the bracket 220 is fixed to the housing 100 through the mounting hole 111.

Referring to fig. 3, in the present embodiment, the bracket 220 includes a mounting portion 221 adapted to the mounting hole 111 and disposed opposite to the air-permeable partition 300 at an interval, and a supporting wall 222 bent and extended from the mounting portion 221 toward the air-permeable partition 300, the supporting wall 222 surrounds the periphery of the sound generating unit 210 and is fixed to the sound generating unit 210, the diaphragm 211 is disposed opposite to the mounting portion 221 at an interval to form a front sound cavity 103, and one side of the sound generating unit 210 away from the supporting wall 222 abuts against the air-permeable partition 300. Since the mounting portion 221 is adapted to the size of the mounting hole 111, the mounting hole 111 can be sealed.

Referring to fig. 4 and fig. 5, in the present embodiment, one side of the retaining wall 140 close to the sound-generating unit 210 is recessed toward a direction away from the sound-generating unit 210 to form an avoiding portion 141 adapted to the supporting wall 222, and the supporting wall 222 is installed on the avoiding portion 141 and is fixed to the retaining wall 140 in a matching manner. By installing the support wall 222 in the escape portion 141, the stability of installing the bracket 220 can be ensured, and the bracket 220 can be prevented from falling out.

In some embodiments, the bracket 220 is fixed to the housing 100 through the mounting hole 111 by gluing or ultrasonic welding, specifically, the mounting portion 221 is fixed to the inner sidewall 130 of the mounting hole 111 by gluing or ultrasonic welding, or the supporting wall 222 is fixed to the retaining wall 140 by gluing or ultrasonic welding.

In some embodiments, the bracket 220 only has a mounting portion 221 for covering the mounting hole 111, and when assembling, the sound generating unit 210 is first mounted in the accommodating cavity 101 through the mounting hole 111, and then the mounting hole 111 is covered by the mounting portion 221.

Referring to fig. 3, in the present embodiment, the retaining wall 140 is higher than the surface of the sound generating unit 210 opposite to the diaphragm 211, so that a gap is left between the air-permeable isolating member 300 and the sound generating unit 210, and further, air can fully circulate between the sound generating unit 210 and the air-permeable isolating member 300, which is more beneficial to sound transmission and can improve the acoustic performance of the speaker module in the present embodiment.

Referring to fig. 3, a gap exists between the air-permeable partition 300 and the top wall 120 in the present embodiment, so as to ensure the communication between the accommodating cavity 101 and the sound-absorbing cavity 102, thereby improving the reliability and the low-frequency acoustic performance of the speaker module in the present embodiment.

Referring to fig. 3-5, the speaker module in this embodiment includes a sound outlet channel 400 sequentially penetrating through the side wall 130, the retaining wall 140 and the supporting wall 222, wherein an end of the sound outlet channel 400 far away from the sound generating unit 210 is communicated with the outside, and an end of the sound outlet channel 400 near the sound generating unit 210 is communicated with the front sound cavity 103.

Referring to fig. 1-3, the speaker module in this embodiment further includes a dustproof air-permeable mesh fabric 410 attached to the side wall 130 and covering an end of the sound channel 400 far from the sound generating unit 210.

The sound-absorbing material in this embodiment is made of zeolite particles, but may be made of other materials that can improve acoustic performance.

The air-permeable partition 300 in this embodiment is an air-permeable mesh, and the air-permeable partition 300 may also be a non-woven fabric, a nylon woven fabric, a wool woven fabric, a metal mesh, or paper.

Referring to fig. 4 and 5, in the present embodiment, the bottom wall 110 and/or the top wall 120 are provided with an injection hole 104, the injection hole 104 is communicated with the sound-absorbing cavity 102, and the sound-absorbing material is filled into the sound-absorbing cavity 102 through the injection hole 104.

Referring to fig. 2, the housing 100 of the present embodiment further includes a sealing cover 150, and the sealing cover 150 is disposed on the injection hole 104. Specifically, after the sound-absorbing material is filled into the sound-absorbing chamber 102 through the filling hole 104, the filling hole 104 is sealed by the sealing cap 150.

Referring to fig. 2, 4 and 5, in the present embodiment, the top wall 120 and/or the bottom wall 110 further penetrate through a leakage hole 105 disposed at an interval from the injection hole 104, the internal and external sound pressures of the sound absorbing cavity 102 can be balanced by the leakage hole 105, the speaker module further includes a ventilation mesh 160 attached to the top wall 120 and/or the bottom wall 110 and covering the leakage hole 105, and the aperture of the leakage hole 105 is smaller than the aperture of the injection hole 104.

Preferably, the leakage hole 105 is formed through the top wall 120, and the injection hole 104 is formed through the bottom wall 110.

The loudspeaker module in this embodiment not only can be convenient produce the assembly, the space of the utilization cavity that moreover can the maximize is used for filling sound absorbing material to improvement acoustic performance that can be fine.

An embodiment of the present invention further provides an assembly method of a speaker module, where the method is performed based on the speaker module in the above embodiment, and specifically, the method includes the following steps:

s101, fixing the sounding unit 210 on the bracket 220;

s102, mounting the bracket 220 on the housing 100 through the mounting hole 111;

s103, covering the top wall 120 on the side wall 130;

and S104, injecting sound absorption materials into the sound absorption cavity 102.

In the step of S104, the specific operation process is: the sound-absorbing material is first injected into the sound-absorbing chamber 102 from the injection hole 104, and then the injection hole 104 is closed by the sealing cap 150.

The step S103 may precede the step S101 or S102.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A speaker module, its characterized in that: the sound-emitting device comprises a shell with an accommodating space, a sound-emitting component and a breathable isolating piece, wherein the sound-emitting component and the breathable isolating piece are accommodated and fixed in the shell, the shell comprises a bottom wall and a top wall which are arranged oppositely and at intervals, and a side wall which is bent and extended from the bottom wall to the top wall, and the accommodating space is enclosed by the bottom wall, the side wall and the top wall;

2. The speaker module of claim 1, wherein: the support include with mounting hole adaptation and with the installation department that ventilative separator is relative and the interval sets up and certainly the installation department court the support wall that ventilative separator direction was buckled and is extended, the support wall encloses to be established sound production monomer periphery and with sound production monomer is fixed, the vibrating diaphragm with relative just interval of installation department sets up the preceding sound cavity of formation, sound production monomer is kept away from one side of support wall with ventilative separator butt.

3. The speaker module as claimed in claim 2, wherein: the barricade is close to the corresponding court of free one side of sound production is kept away from the sunken formation of free direction of sound production with the portion of dodging of supporting the wall adaptation, support the wall and install dodge the portion and with the barricade cooperation is fixed.

4. The speaker module as claimed in claim 2, wherein: the loudspeaker module is including running through in proper order the lateral wall the barricade reaches the play sound passageway of support wall, it keeps away from to go out the sound passageway the free one end of sound production communicates with the external world, it is close to go out the sound passageway the free one end of sound production with preceding sound chamber intercommunication.

5. The speaker module of claim 4, wherein: the support wall and the mounting portion are integrally formed.

6. The speaker module of claim 1, wherein: the bottom wall and the side wall are integrally formed in an injection molding mode, and the top wall and one end, far away from the bottom wall, of the side wall are welded in an ultrasonic mode.

7. The speaker module as claimed in claim 4, wherein the speaker module further comprises a dustproof air-permeable mesh cloth attached to the side wall and covering an end of the sound outlet channel away from the sound generating unit.

8. A loudspeaker module according to any one of claims 1 to 7, wherein: the diapire and/or seted up the filling hole on the roof, the filling hole with sound-absorbing cavity intercommunication, sound-absorbing material warp the filling hole is filled to sound-absorbing cavity.

9. The speaker module as recited in claim 8, wherein: the injection hole is arranged on the bottom of the injection hole, and the injection hole is arranged on the bottom of the injection hole.

10. The speaker module as recited in claim 9, wherein: the roof and/or the diapire still run through set up with leak the hole that the injection hole interval set up, the speaker module is still including pasting and locating the roof and/or the diapire covers leak the ventilative screen cloth in hole, leak the aperture in hole and be less than the aperture of injection hole.