CN214901295U

CN214901295U - Speaker module and electronic equipment

Info

Publication number: CN214901295U
Application number: CN202120855084.2U
Authority: CN
Inventors: 张福铭; 张锋; 张怀省; 邹浩
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-26
Anticipated expiration: 2031-04-25

Abstract

The utility model provides a speaker module and electronic equipment, speaker module are including having accommodating space's full metal casing, sound production monomer and metal mounting, and the metal mounting supports sound production monomer in accommodating space, and the design of the preceding sound chamber of speaker module is open structure. Compared with the prior art, the utility model discloses a speaker module product structure is thinner, and the volume is littleer.

Description

Speaker module and electronic equipment

Technical Field

The utility model belongs to the technical field of the speaker, especially, relate to a speaker module and electronic equipment.

Background

With the rapid development of scientific technology, the requirements of consumers on electronic products are higher and higher, and the design of electronic products such as mobile phones tends to be light and thin based on the requirements of consumers on the thinning of electronic products. The loudspeaker module is used as an important acoustic component of the portable electronic equipment, is used for completing the conversion between an electric signal and an acoustic signal, and is an energy conversion device.

However, the housing of the speaker module is mostly formed by injection molding, and the injection molding housing and the sealing manner of the housing need to occupy more volume, so that the volume design of the acoustic cavity in the speaker module is limited, and further the acoustic performance is limited; meanwhile, as electronic product devices such as mobile phones and the like are more and more complicated to stack, the space of the Z axis of the electronic product is severely limited, and the height of the Z axis of the loudspeaker module is one of the limited points of the whole machine, so that a new scheme is required to solve the technical problem.

Disclosure of Invention

The first aspect of the present invention is to overcome the above technical problem, and to provide a thinned speaker module.

In order to solve the technical problem, the present invention is implemented as such, and a speaker module includes a metal housing, the metal housing includes a top wall, a bottom wall and a side wall connecting the top wall and the bottom wall, a first through hole is formed in a central region of the top wall, the top wall is recessed toward the bottom wall to form a recessed portion, and the recessed portion penetrates through the side wall and communicates with the first through hole; the sounding unit is contained in the metal shell and comprises a vibration system and a magnetic circuit system; the mounting, the mounting is made by metal material, the mounting is connected the sound production monomer with the roof, the mounting encircles first through-hole overlap joint in the roof, the mounting is including dodging the fracture of depressed part, the roof the mounting with vibration system encloses into the sound production front side, the roof the lateral wall the diapire the mounting with vibration system encloses into the sound production dorsal part.

Preferably, the mounting includes with the fixed wall that the roof is connected, supports the free support wall of sound production, connect the fixed wall with the first connecting wall and the second connecting wall of support wall, still include by the support wall is kept away from the one end orientation of first through-hole the first barricade that the diapire bending extension formed.

Preferably, the first connecting wall is located at an inner side end of the fixing member close to the first through hole, the second connecting wall is located at an outer side end of the fixing member far away from the first through hole, the first connecting wall is of a continuous structure, and the second connecting wall is of a discontinuous structure.

Preferably, the mounting still include by first barricade orientation the rubber coating face that the lateral wall was buckled and is extended formation, by the rubber coating face orientation the diapire is buckled and is extended the second barricade that forms, the rubber coating face the second barricade be used for holding the colloid between the speaker monomer.

Preferably, the depressed part includes a top surface and a side surface connecting the top surface and the top wall, a material removing part is provided on one side of the top surface close to the first through hole, and the width of the material removing part is the same as the width of the support wall.

Preferably, the fixing member is welded to the top wall, and a gap between the side surface of the recess and the fixing member is filled with a gel.

Preferably, a second through hole is formed in the central area of the bottom wall, the magnetic circuit system is fixed to the bottom wall, and the magnetic circuit system is exposed to the second through hole.

Preferably, the speaker module further includes an annular gasket fixed to an outer side surface of the top wall, the annular gasket surrounding the first through hole and the recess.

A second aspect of the present invention provides an electronic device, the electronic device comprising a housing and a speaker module.

Preferably, the top wall is fixed to the housing, the housing and the sound-emitting front side are matched to form a front cavity of the speaker module, and the recess and the housing are matched to form a side sound outlet hole of the speaker module.

Compared with the prior art, the utility model, the slim design of speaker module more helps.

Drawings

Fig. 1 is a schematic view of an exploded structure of the speaker module of the present invention.

Fig. 2 is a plan view of the speaker module according to the present invention.

Fig. 3 is a sectional structure view of the speaker module of the present invention along the line a-a in fig. 2.

Fig. 4 is an enlarged schematic view of the structure at C of fig. 3.

Fig. 5 is a schematic perspective view of the speaker module according to the present invention.

Fig. 6 is a schematic structural view of the top wall of the speaker module according to the present invention.

Fig. 7 is a schematic structural view of the fixing member of the speaker module of the present invention

Fig. 8 is a combined structure diagram of the top wall and the fixing member of the speaker module according to the present invention.

Fig. 9 is an enlarged schematic view of the structure at D of fig. 8.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the components set forth in these embodiments and the words "upper", "lower", etc. describing the position of the structures are intended only to illustrate the manner in which the components of the present invention are placed and are not intended to limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Referring to fig. 1-5, as an embodiment of the present invention, the speaker module includes a housing made of a metal material, and includes an upper housing 1 and a bottom wall 2, the upper housing 1 includes a top wall 11 and a side wall 12, the top wall 11, the side wall 12 and the bottom wall 2 enclose an accommodating space, the sound-generating unit 3 is accommodated in the accommodating space, and the speaker module further includes a fixing member 4 supporting the sound-generating unit 3, and the fixing member 4 is fixed on the top wall 11. Wherein, the upper shell 1, the bottom wall 2 and the fixing piece 3 are all made of metal materials.

The casing of the speaker module of this embodiment adopts all metal material to make, compares in the casing that other materials were made, has thinner thickness and better heat conductivility, more can satisfy the user demand of consumer to the frivolous electronic product.

Further, the sounding unit 3 includes a vibration system for vibrating and sounding, and provides a magnetic circuit system for magnetic driving force, the sounding unit 3 and an external signal source are electrically connected to the electric connector 5, an electric signal is introduced to the sounding unit 3, and the upper case 1 is provided with an opening (not marked in the figure) through which the power supply connector 5 extends. The vibration system is arranged facing the top wall 11, a first through hole 111 is arranged in the central area of the top wall 11, and the first through hole 111 is opposite to the vibration system of the sound generating unit 3. The top wall 11 is sunken towards the bottom wall 2 to form a sunken part 112, the sunken part 112 penetrates through the side wall 12 and is communicated with the first through hole 111, furthermore, the top wall 11 forms a notch 13, the fixing piece 4 is lapped on the top wall 11, the fixing piece 4 surrounds the first through hole 111, and the fixing piece 4 comprises a fracture 45 which avoids the sunken part 112. Roof 11, mounting 4, sound production monomer 3 enclose into the sound production front side, and roof 11, diapire 2, mounting 4, sound production monomer 3 seal into the sound production dorsal part.

The speaker module of this embodiment, roof 11, mounting 4, sound production monomer 3 enclose into open sound production front side, and after the speaker module combines the electronic product, the preceding sound chamber of speaker module is formed with the shell cooperation of electronic product. Compared with the speaker module in the prior art, the thickness of the top wall 11 can be saved in the Z-axis direction when the speaker module is combined with an electronic product.

As one embodiment of the present invention, the fixing member 4 is supported on one side of the sound generating unit 3 close to the vibration system, and the fixing member 4 includes a fixing wall 41 connected to the top wall 11, a supporting wall 42 connected to the sound generating unit 3, a first connecting wall 43 and a second connecting wall 44 connecting the fixing wall 41 and the supporting wall 42, and a first retaining wall 45 extending toward the bottom wall 2 and bent from one end of the supporting wall 42 away from the first through hole 111.

Further, the first connecting wall 43 and the second connecting wall 44 are spaced apart by a certain distance, for example, the first supporting wall 43 is located at the inner end of the fixing member 4 away from the first through hole 111, and the second supporting wall 44 is located at the fixing end

The member 4 is remote from the outer end of the first through hole 111. In order to ensure the sealing performance of the speaker unit and reduce the weight of the fixing member 4 itself, the first connecting wall 43 is of a continuous structure, and the second connecting wall 44 is of an intermittent structure, that is, the second supporting walls 44 are arranged at intervals on the peripheral side of the fixing member 4. On the premise of ensuring the strength of the shell, the loudspeaker module is thinned to the maximum extent, and the weight of the loudspeaker module is reduced, so that the loudspeaker module is adapted to the development situation of thinning of the existing consumer electronics products, and the application space of the loudspeaker module is expanded. Meanwhile, the fixing member 4 is provided with the second supporting wall 44 to provide supporting force for the fixing member 4, so that the fixing member 4 is prevented from being deformed by pressure during the installation or working process of the speaker module, and the installation reliability of the sounding unit 3 is improved.

Referring to fig. 3-4 and 7-8, the second supporting walls 44 are disposed at intervals around the fixing member 4, so as to reduce the weight of the fixing member 4 on the premise of satisfying the supporting force. The second supporting wall 44 may be formed by extending the fixing wall 41 toward the supporting wall 42, or by extending the supporting wall 42 toward the fixing wall 41, and may be integrally formed with the fixing member 4, or may be combined to the fixing member 4 by embedding, bonding, or the like, and the embodiment is not limited herein as long as both ends of the second supporting wall 44 abut against the fixing wall 41 and the supporting wall 42, respectively.

Wherein, mounting 4 and roof 11 adopt welded fastening, and mounting 4 and 3 rubber coating of sound production monomer are fixed. In order to further increase the gluing space between the fixing element 4 and the sound-generating unit 3 to improve the reliability of the combination of the fixing element and the sound-generating unit 3, the fixing element 4 further includes a gluing surface 46 formed by bending and extending the first retaining wall 45 towards the side wall 12, a second retaining wall 47 formed by bending and extending the gluing surface 46 towards the bottom wall 2, and glue is contained between the gluing surface 46, the second retaining wall 47 and the speaker unit 3. Thereby, a larger glue applying space is formed between the peripheral side of the sound emitting element 3 and the mount 4.

Referring to fig. 6 to 9, the recessed portion 112 of the top wall 11 includes a top surface 1121 and a side surface 1122 connecting two ends of the top surface 1121 with the top wall 111, a material removing portion is disposed on one side of the top surface 1121, which is close to the first through hole 111, the width of the material removing portion is the same as that of the support wall 42, and the material removing portion is used for avoiding the speaker unit 3.

As shown in fig. 9, in order to ensure the sealing performance between the fixing member 4 and the top wall 11, after the fixing member 4 and the top wall 11 are welded and fixed, the gap a formed between the fixing member 4 and the side surface 1122 of the recess 112 is coated with glue, so as to achieve a better sealing effect.

Further, referring to fig. 1 and 3, the bottom wall 2 of the speaker module of the present invention is provided with a second through hole 21, and the magnetic circuit system of the sounding unit 3 is disposed on the bottom wall 2 and exposed to the second through hole 21, and is opposite to the second through hole 21

In the case that the bottom wall 2 is not provided with the second through hole 21, the structure enables the thickness of one bottom wall 2 of the speaker module to be reduced in the Z-axis direction, which contributes to the thinning development of the speaker module. Diapire 2, mounting 4, roof 11, the sealed sound production dorsal part that forms vibration system of sound production monomer 3, for the atmospheric pressure of balanced speaker module inner space and external space, set up the damping hole on diapire 2, and set up damping fin 6 and paste and locate the damping hole.

As an embodiment of the present invention, referring to fig. 1 and 5, the speaker module of the present invention further includes a ring gasket, which is disposed on the outer side 1122 of the top wall 11 and surrounds the first through hole 111 and the recessed portion 122. After the loudspeaker module is installed in the electronic product, a better seal is formed between the loudspeaker module and the electronic product. The annular gasket can be made of foam, silica gel and other materials with certain elastic performance.

The utility model also provides an electronic equipment, electronic equipment include the shell with the embodiment of the utility model provides a speaker module. Roof 11 of speaker module is fixed in behind electronic equipment's the shell, the shell forms the preceding sound chamber of speaker module with the cooperation of sound production front side, and the breach 13 of roof 11 and the shell cooperation form the side sound outlet in the preceding sound chamber of intercommunication.

The utility model discloses a speaker module adopts the form in open antechamber, after electronic equipment was installed to the speaker module, utilizes electronic equipment's shell and speaker module's roof to enclose into preceding sound chamber, for prior art product structure, the wall thickness of a roof is saved in the Z axle direction, more helps the slim design of speaker module.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the claims.

Claims

1. A speaker module, characterized in that the speaker module comprises

The metal shell comprises a top wall, a bottom wall and a side wall connecting the top wall and the bottom wall, wherein a first through hole is formed in the central area of the top wall, the top wall is sunken towards the bottom wall to form a sunken part, and the sunken part penetrates through the side wall and is communicated with the first through hole;

the sounding unit is contained in the metal shell and comprises a vibration system and a magnetic circuit system;

the mounting, the mounting is made by metal material, the mounting is connected the sound production monomer with the roof, the mounting encircles first through-hole overlap joint in the roof, the mounting is including dodging the fracture of depressed part, the roof the mounting with vibration system encloses into the sound production front side, the roof the lateral wall the diapire the mounting with vibration system encloses into the sound production dorsal part.

2. The speaker module as claimed in claim 1, wherein the fixing member comprises a fixing wall connected to the top wall, a supporting wall for supporting the sound generating unit, a first connecting wall and a second connecting wall for connecting the fixing wall and the supporting wall, and a first retaining wall formed by bending and extending an end of the supporting wall away from the first through hole toward the bottom wall.

3. The speaker module as claimed in claim 2, wherein the first connecting wall is located at an inner end of the fixing member close to the first through hole, the second connecting wall is located at an outer end of the fixing member far from the first through hole, the first connecting wall is of a continuous structure, and the second connecting wall is of a discontinuous structure.

4. The speaker module as claimed in claim 2, wherein the fixing member further comprises a glue coating surface formed by bending and extending the first retaining wall towards the side wall, and a second retaining wall formed by bending and extending the glue coating surface towards the bottom wall, wherein the glue coating surface, the second retaining wall and the speaker unit are used for accommodating glue therebetween.

5. The speaker module as claimed in claim 2, wherein the recess includes a top surface and a side surface connecting the top surface and the top wall, a material removing portion is provided on a side of the top surface adjacent to the first through hole, and a width of the material removing portion is the same as a width of the support wall.

6. The speaker module as claimed in claim 5, wherein the fixing member is welded to the top wall, and a gap between the side surface of the recess and the fixing member is filled with a gel.

7. The speaker module as claimed in claim 1, wherein a second through hole is formed in a central region of the bottom wall, the magnetic circuit is fixed to the bottom wall, and the magnetic circuit is exposed through the second through hole.

8. The speaker module of claim 1, further comprising an annular gasket secured to an outer side of the top wall, the annular gasket surrounding the first through hole and the recess.

9. An electronic device, characterized in that the electronic device comprises a housing and a loudspeaker module according to any of claims 1-8.

10. The electronic device of claim 9, wherein the top wall is secured to the housing, the housing and the sound emitting front side cooperate to form a front cavity of the speaker module, and the recess and the housing cooperate to form a side sound outlet aperture of the speaker module.