CN212936101U

CN212936101U - Loudspeaker module

Info

Publication number: CN212936101U
Application number: CN202021359173.XU
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: 2021-04-09
Anticipated expiration: 2030-07-09
Also published as: WO2022006950A1

Abstract

The utility model provides a loudspeaker module, which comprises a shell with an accommodating space, a sounding monomer and a breathable isolating piece, wherein the sounding monomer and the breathable isolating piece are fixedly accommodated in the shell, the sounding monomer comprises a vibrating diaphragm, the shell comprises a bottom wall right opposite to the vibrating diaphragm, a top wall opposite to the bottom wall and arranged at intervals, and a side wall bent and extended from the bottom wall to the top wall, and the bottom wall, the side wall and the top wall form the accommodating space; the diapire is close to the protruding barricade that is equipped with of one side of vibrating diaphragm towards the roof direction, the roof is close to one side of vibrating diaphragm towards the protruding division wall that is equipped with of direction of diapire, the periphery of ventilative separator is moulded plastics on the division wall and constitutes isolation assembly with the division wall, isolation assembly lid is established and is fixed in the one end that the diapire was kept away from to the barricade, isolation assembly separates into the free chamber that holds of accommodating the sound production and the sound-absorbing chamber of accommodating sound-absorbing material with accommodating space, isolation assembly, barricade and diapire enclose to close and form and hold the chamber, the sound-absorbing. The loudspeaker module in this embodiment has better acoustic performance and simpler assembly.

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 unit and a breathable isolating piece, wherein the sound production unit and the breathable isolating piece are accommodated and fixed in the shell, the sound production unit comprises a vibrating diaphragm, the shell comprises a bottom wall opposite to the vibrating diaphragm, a top wall opposite to the bottom wall and arranged at intervals, and a side wall 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;

the diapire is close to one side court of vibrating diaphragm the protruding barricade that is equipped with of roof direction, the roof is close to one side orientation of vibrating diaphragm the protruding division wall that is equipped with of direction of diapire, the periphery of ventilative separator is moulded plastics on the division wall and with the isolation component is constituteed to the division wall, isolation component lid is established and is fixed the barricade is kept away from the one end of diapire, isolation component will accommodating space separates to become accepts the free chamber that holds of sound production and the sound absorbing chamber of acceping sound absorbing material, isolation component the barricade reaches the diapire encloses to close and forms hold the chamber, the sound absorbing chamber is located isolation component with between the roof.

As an improvement, the sound absorbing cavity comprises a first cavity and a second cavity, the breathable partition piece and the top wall are enclosed to form the first cavity, the top wall, the partition wall and the breathable partition piece are enclosed to form the first cavity, the top wall, the bottom wall, the partition wall and the retaining wall are enclosed to form the second cavity, the partition wall penetrates through the second cavity and is provided with a connecting through hole, and the connecting through hole is communicated with the first cavity and the second cavity.

As an improvement, the edge of the breathable partition piece is embedded in the partition wall, and one end of the partition wall, which is close to the bottom wall, is fixed in an ultrasonic welding mode or in a gluing mode and is far away from one end of the bottom wall.

As a modification, the top wall is integrally formed with the partition wall.

As an improvement, the diapire towards sound production monomer direction is still protruding to be equipped with and supports the free support wall of sound production, the support wall butt is in sound production monomer periphery and with sound production monomer bonds.

As an improvement, the ventilating isolation piece and the sounding single body are arranged at intervals.

As an improvement, the sounding monomer and the bottom wall form a front sound cavity at intervals, and the side wall is provided with a sound outlet channel communicated with the front sound cavity and the outside.

As an improvement, the retaining wall, the supporting wall and the bottom wall are integrally formed.

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-absorbing cavity, and the sound-absorbing material is filled into the sound-absorbing cavity through the injection hole; the loudspeaker module further comprises a sealing cover, and the sealing cover 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 and locating the roof 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: divide into the chamber that holds and accept sound absorbing material's sound absorbing cavity of accommodating sound producing component through the spacer assembly, barricade and diapire enclose to close and form and hold the chamber, because all regional homoenergetic except that holding the chamber in the accommodating space can fill sound absorbing material, thereby make and have a large amount of spaces in the speaker module in this embodiment and can be used to fill sound absorbing material, the acoustic performance of speaker module has been improved, in addition, through with ventilative spacer and the integrative injection moulding of barricade, so when the assembly, can save with ventilative spacer veneer or weld on the support ring and with support ring veneer or the step of welding on the barricade, so, speaker module assembly step in this embodiment is simplified, it is more simple and convenient to assemble.

[ 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 cross-sectional view of the speaker module B-B of FIG. 1;

FIG. 5 is a schematic view of the assembly of the top wall and the breathable barrier of FIG. 1;

FIG. 6 is a schematic view of the overall structure of the stent of FIG. 1;

in the figure: 100. a housing; 101. an accommodating chamber; 102. a sound absorbing chamber; 1021. a first chamber; 1022. a second chamber; 103. a front acoustic chamber; 104. an injection hole; 105. a leak hole; 110. a bottom wall; 120. a top wall; 121. a partition wall; 1211. a connecting through hole; 130. a side wall; 131. a sound outlet channel; 140. retaining walls; 150. a support wall; 160. a sealing cover; 170. ventilating mesh cloth; 200. a sounding monomer; 210. vibrating diaphragm; 300. a breathable barrier; 400. dustproof ventilative screen cloth.

[ detailed description ] embodiments

To further illustrate embodiment examples, the present invention provides an attached drawing. 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 unit 200 and a ventilation spacer 300 accommodated and fixed in the housing 100.

Referring to fig. 1, fig. 3 to fig. 5, the sound generating unit 200 in the present embodiment includes a diaphragm 210, the housing 100 includes a bottom wall 110 opposite to the diaphragm 210, a top wall 120 opposite to the bottom wall 110 and spaced apart from the bottom wall 110, and a side wall 130 bending and extending from the bottom wall 110 toward the top wall 120, and 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 or glued to the end of the side wall 130 remote from the bottom wall 110.

Referring to fig. 4 and fig. 5, in this embodiment, a retaining wall 140 is convexly disposed on one side of the bottom wall 110 close to the diaphragm 210 toward the top wall 120, a separation wall 121 is convexly disposed on one side of the top wall 120 close to the diaphragm 210 toward the bottom wall 110, preferably, the top wall 120 and the separation wall 121 are integrally injection-molded, a periphery of the air-permeable separation member 300 is injection-molded on the separation wall 121 and forms a separation component with the separation wall 121, the separation component is covered and fixed on one end of the retaining wall 140 far from the bottom wall 110, preferably, the separation wall 121 is fixed on one end of the retaining wall 140 far from the bottom wall 110, and may also be directly covered and fixed on one end of the retaining wall 140 far from the bottom wall 110 through the air-permeable separation member 300. Specifically, the edge of the air permeable partition 300 is embedded in the partition wall 121, and one end of the partition wall 121 close to the bottom wall 110 is fixed by ultrasonic welding or gluing at one end of the retaining wall 140 away from the bottom wall 110. By integrally injection molding the air-permeable partition 300 and the partition wall 121, the steps of gluing or welding the air-permeable partition 300 to the support ring and then gluing or welding the support ring to the retaining wall 140 can be omitted during assembly, so that the assembly steps of the speaker module in this embodiment are simplified and the assembly is simpler and more convenient.

Referring to fig. 4 and 5, in the present embodiment, the isolation component divides the accommodating space into an accommodating cavity 101 accommodating the sound generating unit 200 and a sound absorbing cavity 102 accommodating a sound absorbing material, the isolation component, the retaining wall 140 and the bottom wall 110 enclose to form the accommodating cavity 101, and the sound absorbing cavity 102 is located between the isolation component and the top wall 120, specifically, the sound absorbing cavity 102 is enclosed by the isolation component, 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.

Referring to fig. 4, the sound absorbing cavity 102 in the present embodiment includes a first cavity 1021 and a second cavity 1022, the top wall 120, the partition wall 121 and the air permeable partition 300 enclose to form the first cavity 1021, the top wall 120, the bottom wall 110, the partition wall 121 and the retaining wall 140 enclose to form the second cavity 1022, the partition wall 121 is provided with a connecting through hole 1211 in a penetrating manner, and the connecting through hole 1211 connects the first cavity 1021 and the second cavity 1022.

In some related arts, the air-permeable partition 300 is often disposed on the side of the sound generating unit 200, and the accommodating chamber 101 for accommodating the sound generating unit 200 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, referring to fig. 2 and fig. 3, in this embodiment, the air-permeable isolating piece 300 is located on a side of the sound-generating unit 200 away from the diaphragm 211, so that the area of the air-permeable isolating piece 300 is also large enough, and the smooth performance of air circulation between the accommodating cavity 101 and the sound-absorbing cavity 102 can be greatly improved, and the acoustic performance of the speaker module in this embodiment can be better improved, and the air-permeable isolating piece 300 forms a part of the accommodating cavity 101, so that the space between the top wall 120 and the air-permeable isolating piece 300 can be well utilized to place the sound-absorbing material.

Referring to fig. 2 and 5, the bottom wall 110 and the retaining wall 140 in this embodiment are integrally formed, preferably integrally injection-molded, to simplify the production and assembly.

Preferably, the shape of holding chamber 101 with sound production monomer 200 looks adaptation can reduce and place the space of sound production monomer 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.

Referring to fig. 2, 3-5, in the present embodiment, a supporting wall 150 for supporting the sound generating unit 200 is further protruded from the bottom wall 110 toward the sound generating unit 200, and the supporting wall 150 abuts against the periphery of the sound generating unit 200 and is adhered to the sound generating unit 200. Preferably, the sound generating unit 200 is fixed to the support wall 150 by ultrasonic welding or gluing.

Referring to fig. 3 and 4, a gap is left between the air-permeable partition 300 and the sound-generating unit 200 in the present embodiment, and further, the sound-generating unit 200 is communicated with the air-permeable partition 300, which is more beneficial to sound transmission and can improve the acoustic performance of the speaker module in the present embodiment.

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. 3 and 4, in the present embodiment, the sounding unit 200 and the bottom wall 110 form a front sound cavity 103 at an interval, and the side wall 130 is provided with a sound outlet channel 131 for communicating the front sound cavity 103 with the outside. Specifically, one end of the sound outlet channel 131, which is far away from the sound generating unit 200, is communicated with the outside, and one end of the sound outlet channel 131, which is close to the sound generating unit 200, is communicated with the front sound cavity 103.

Referring to fig. 1-4, the speaker module in this embodiment further includes a dustproof air-permeable mesh 400 attached to the side wall 130 and covering an end of the sound channel 131 far from the sound generating unit 200.

Referring to fig. 1, 2 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 160, and the sealing cover 160 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 160.

Referring to fig. 2 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 with 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 cloth 170 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.

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-producing device comprises a shell with an accommodating space, a sound-producing single body and a breathable isolating piece, wherein the sound-producing single body and the breathable isolating piece are accommodated and fixed in the shell, the sound-producing single body comprises a vibrating diaphragm, the shell comprises a bottom wall opposite to the vibrating diaphragm, a top wall opposite to the bottom wall and arranged at intervals, and a side wall 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 sound absorbing cavity comprises a first cavity and a second cavity, the top wall, the isolation wall and the breathable isolation piece are enclosed to form the first cavity, the top wall, the bottom wall, the isolation wall and the retaining wall are enclosed to form the second cavity, the isolation wall penetrates through the second cavity and is provided with a connecting through hole, and the connecting through hole is communicated with the first cavity and the second cavity.

3. The speaker module as claimed in claim 2, wherein: the edge of ventilative separator inlays to be located in the division wall, the division wall is close to the one end ultrasonic bonding of diapire is fixed or the veneer is fixed the barricade is kept away from the one end of diapire.

4. The speaker module of claim 1, wherein: the top wall and the partition wall are integrally formed.

5. A loudspeaker module according to any one of claims 1 to 4, wherein: the diapire court sound production monomer direction is protruding still to be equipped with the support the free support wall of sound production, the support wall butt is in sound production monomer periphery and with sound production monomer bonds.

6. The speaker module of claim 5, wherein: the breathable isolating piece and the sounding monomer are arranged at intervals.

7. The speaker module of claim 5, wherein: the sounding monomer and the diapire interval form preceding sound chamber, the lateral wall is seted up the intercommunication preceding sound chamber and outside play sound passageway.

8. The speaker module of claim 5, wherein: the barricade the support wall reaches diapire integrated into one piece sets up.

9. The speaker module as recited in claim 8, wherein: the bottom wall and/or the top wall are/is provided with an injection hole, the injection hole is communicated with the sound-absorbing cavity, and the sound-absorbing material is filled into the sound-absorbing cavity through the injection hole; the loudspeaker module further comprises a sealing cover, and the sealing cover is arranged on the injection hole in a covering mode.

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 leaks that the filling hole interval set up, the speaker module is still located including pasting the roof covers leak the ventilative screen cloth in hole, leak the aperture in hole and be less than the aperture of filling hole.