CN214154818U - Vibrating diaphragm subassembly - Google Patents
Vibrating diaphragm subassembly Download PDFInfo
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- CN214154818U CN214154818U CN202022891911.1U CN202022891911U CN214154818U CN 214154818 U CN214154818 U CN 214154818U CN 202022891911 U CN202022891911 U CN 202022891911U CN 214154818 U CN214154818 U CN 214154818U
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- diaphragm
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Abstract
The utility model discloses a vibrating diaphragm component, which comprises a ball top and a sound film, wherein the ball top and the sound film are in an integral structure formed by injection molding in a mould; the utility model provides a vibrating diaphragm subassembly long service life, sound membrane and dome are injection moulding's in mould integral type structure, have cancelled to glue the process of being connected to the dome and sound membrane, do benefit to the promotion of production yield and production efficiency, have reduced the risk of structural failure, have prolonged the life of vibrating diaphragm subassembly.
Description
Technical Field
The utility model relates to an acoustics device technical field especially relates to a vibrating diaphragm subassembly.
Background
The micro-speaker is an important acoustic component in the portable electronic device, is used for converting acoustic wave electric signals into sound signals and transmitting the sound signals, and is an energy conversion device. A micro speaker generally includes a vibration system, which generally consists of a diaphragm, a dome, and a voice coil; in the prior art, the vibrating diaphragm and the dome are generally bonded and fixed by glue, and the glue is easy to lose efficacy after long-time use, so that the connection between the dome and the vibrating diaphragm is lost efficacy, and the service life of the loudspeaker is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a diaphragm assembly having a long service life is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a vibrating diaphragm subassembly, includes ball top and sound membrane, the ball top with the sound membrane is injection moulding's in mould integral type structure.
Furthermore, the edge of the top of the ball is provided with a blank holder connected with the sound film.
Further, the edge pressing part is arranged at the top and/or the bottom of the ball top.
Furthermore, a combination hole is formed in the dome, the sound film comprises a main body portion, an extension portion and a combination portion, the combination portion is located in the combination hole, and the extension portion is connected with the main body portion and the combination portion.
Further, the combination hole is arranged on the top surface of the dome, and the extension part covers a partial area of the top surface of the dome; or, the combination hole is arranged on the bottom surface of the dome, and the extension part covers partial area of the bottom surface of the dome.
Furthermore, the combination hole penetrates through the top surface and the bottom surface of the dome, a partial area of the top surface of the dome and a partial area of the bottom surface of the dome are respectively covered with the extension portion, the top of the combination portion is connected with the extension portion covering the top surface of the dome, and the bottom of the combination portion is connected with the extension portion covering the bottom surface of the dome.
Further, the combination hole is disposed near an edge of the dome.
Furthermore, the top dome is of a single-layer structure made of a layer of rigid material.
Further, the dome is a composite structure compounded with at least two layers of rigid films, and the composite structure further comprises a foaming body arranged between the two adjacent layers of the rigid films.
Furthermore, the rigid membrane is made of aluminum or carbon fiber.
The beneficial effects of the utility model reside in that: the utility model provides a vibrating diaphragm subassembly long service life, sound membrane and dome are injection moulding's in mould integral type structure, have cancelled to glue the process of being connected to the dome and sound membrane, do benefit to the promotion of production yield and production efficiency, have reduced the risk of structural failure, have prolonged the life of vibrating diaphragm subassembly.
Drawings
Fig. 1 is an assembly view of a diaphragm assembly according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure view of a diaphragm assembly according to a first embodiment of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a schematic structural diagram of another structure of a diaphragm assembly according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of another structure of a diaphragm assembly according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a dome of a diaphragm assembly according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of a diaphragm assembly according to a second embodiment of the present invention.
Description of reference numerals:
1. a ball top; 11. pressing edges; 12. a coupling hole; 13. a rigid membrane; 14. a foam; 2. a sound membrane; 21. a main body; 22. an extension portion; 23. a bonding portion.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 7, a diaphragm assembly includes a dome 1 and a sound film 2, where the dome 1 and the sound film 2 are an integrated structure formed by in-mold injection molding.
From the above description, the beneficial effects of the present invention are: sound membrane 2 and dome 1 are injection moulding's in mould integral type structure, have cancelled and have beaten the process of gluing and carrying out being connected to dome 1 and sound membrane 2, do benefit to the promotion of production yield and production efficiency, have reduced the risk of structural failure, have prolonged the life of vibrating diaphragm subassembly.
Furthermore, the edge of the dome 1 is provided with a blank holder 11 connected with the sound film 2.
From the above description, the blank holder 11 can reduce the thickness of the dome 1, which is beneficial to improving the compactness and conforms to the development trend of miniaturization of the loudspeaker.
Further, the edge pressing 11 is arranged at the top and/or the bottom of the dome 1.
As can be seen from the above description, the position of the blank holder 11 can be set according to the actual application requirements, and the diversity of the structure is enriched.
Further, a combining hole 12 is formed in the dome 1, the sound film 2 includes a main body 21, an extending portion 22 and a combining portion 23, the combining portion 23 is located in the combining hole 12, and the extending portion 22 connects the main body 21 and the combining portion 23.
As can be seen from the above description, the bonding hole 12 can increase the contact area between the sound film 2 and the dome 1, so as to improve the bonding force and reduce the risk of connection failure between the sound film 2 and the dome 1.
Further, the combination hole 12 is provided on the top surface of the dome 1, and the extension portion 22 covers a partial area of the top surface of the dome 1; alternatively, the coupling hole 12 is provided on the bottom surface of the dome 1, and the extension portion 22 covers a partial area of the bottom surface of the dome 1.
As can be seen from the above description, the positions of the combination holes 12 on the dome 1 and the covering positions of the extension portions 22 on the dome 1 can be set according to the actual application requirements, so that the diversity of the structure is enriched.
Further, the combination hole 12 penetrates through the top surface and the bottom surface of the dome 1, a partial area of the top surface of the dome 1 and a partial area of the bottom surface of the dome 1 are covered with the extension portion 22, respectively, the top of the combination portion 23 is connected with the extension portion 22 covering the top surface of the dome 1, and the bottom of the combination portion 23 is connected with the extension portion 22 covering the bottom surface of the dome 1.
It can be known from the above description that the top and the bottom of dome 1 are by extension 22 cover do benefit to dome 1 with the promotion of cohesion between the sound membrane 2, bonding hole 12 runs through the top and the bottom of dome 1, and bonding portion 23 respectively with cover in the top of dome 1 extension 22 and cover in the bottom of dome 1 extension 22 is connected, does benefit to dome 1 with the further promotion of cohesion between the sound membrane 2.
Further, the coupling hole 12 is provided near the edge of the dome 1.
As can be seen from the above description, the combining portion 23 is disposed near the edge of the dome 1, so as to facilitate the connection between the sound film 2 and the dome 1, and the location of the combining hole 12 can be specifically set according to the actual application requirement.
Further, the dome 1 is a single-layer structure made of a rigid material.
As can be seen from the above description, the dome top 1 has a single-layer structure, which is convenient for manufacturing and forming and is beneficial to reducing the production cost.
Further, the dome 1 is a composite structure formed by combining at least two rigid films 13, and the composite structure further includes a foam 14 disposed between two adjacent rigid films 13.
As can be seen from the above description, the dome 1 is configured as a composite structure, which is beneficial to improving the toughness and strength of the dome 1.
Further, the rigid membrane 13 is made of aluminum or carbon fiber.
As can be seen from the above description, the material of the rigid film 13 can be set according to the actual application requirements.
Example one
Referring to fig. 1 to 6, a first embodiment of the present invention is: the utility model provides a vibrating diaphragm subassembly, includes dome 1 and sound membrane 2, dome 1 with sound membrane 2 is injection moulding's in the mould integral type structure.
In this embodiment, the dome 1 is a single-layer structure formed by a layer of rigid material, specifically, the rigid material is aluminum, so that the manufacturing and forming are facilitated, and the reduction of the production cost is facilitated.
Preferably, the edge of the dome 1 is provided with a pressing edge 11 connected with the sound film 2, which is easy to understand, the pressing edge 11 can reduce the thickness of the dome 1, thereby facilitating the improvement of the structure compactness and meeting the development trend of the miniaturization of the loudspeaker.
Optionally, the blank pressing 11 is set at the top and/or the bottom of the dome 1, that is, the blank pressing 11 may be set at the top of the dome 1 (as shown in fig. 4), may also be set at the bottom of the dome 1 (as shown in fig. 5), and may also be set at the top and the bottom of the dome 1 respectively (as shown in fig. 3), and the position of the blank pressing 11 may be set according to actual application requirements, so that the diversity of the structure is enriched.
In order to improve the bonding force between the dome 1 and the sound membrane 2, a bonding hole 12 is formed in the dome 1, the sound membrane 2 comprises a main body 21, an extension portion 22 and a bonding portion 23, the bonding portion 23 is located in the bonding hole 12, the extension portion 22 connects the main body 21 and the bonding portion 23, and it is easy to understand that the bonding hole 12 can enhance the bonding force between the sound membrane 2 and the dome 1 and reduce the risk of connection failure between the sound membrane 2 and the dome 1; optionally, the combination hole 12 is provided on the top surface of the dome 1, and the extension portion 22 covers a partial area of the top surface of the dome 1 (as shown in fig. 4); or, the combination hole 12 is disposed on the bottom surface of the dome 1, and the extension portion 22 covers a partial area of the bottom surface of the dome 1 (as shown in fig. 5), and particularly, the combination hole 12 is disposed at the position of the dome 1 and the extension portion 22 is disposed at the covering position of the dome 1 according to the actual application requirement, so as to enrich the diversity of the structure, specifically, in this embodiment, referring to fig. 3, the combination hole 12 penetrates through the top surface and the bottom surface of the dome 1, the partial area of the top surface of the dome 1 and the partial area of the bottom surface of the dome 1 are respectively covered with the extension portion 22, the top of the combination portion 23 is connected with the extension portion 22 covering the top surface of the dome 1, the bottom of the combination portion 23 is connected with the extension portion 22 covering the bottom surface of the dome 1, which is easy to understand, the top and the bottom of the dome 1 are respectively covered with the extension portion 22, do benefit to the dome 1 with the promotion of cohesion between the sound membrane 2, the bonding hole 12 runs through the top and the bottom of dome 1, and joint portion 23 respectively with cover in the top of dome 1 extension 22 and cover in the bottom of dome 1 extension 22 is connected, does benefit to dome 1 with the further promotion of cohesion between the sound membrane 2.
Optionally, the combination hole 12 is disposed near an edge of the dome 1 (as shown in fig. 6), so that the sound film 2 is connected to the dome 1, and the position of the combination hole 12 may be specifically set according to actual application requirements.
Example two
Referring to fig. 7, the second embodiment of the present invention is a further improvement of the dome 1 on the basis of the first embodiment, and the difference from the first embodiment is that: the dome 1 is a composite structure compounded with at least two layers of rigid films 13, the composite structure further comprises a foaming body 14 arranged between the two adjacent layers of the rigid films 13, and as is easy to understand, the dome 1 is arranged into the composite structure, so that the toughness and the strength of the dome 1 are improved.
Optionally, the rigid film 13 is made of aluminum or carbon fiber, the foam 14 is made of PMI (i.e., polymethacrylimide), and the materials of the rigid film 13 and the foam 14 may be set according to actual application requirements.
To sum up, the utility model provides a vibrating diaphragm subassembly has long service life, simple structure, structural strength height, structural style is abundant and the strong characteristics of compact structure nature.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a vibrating diaphragm subassembly, includes ball top and sound membrane, its characterized in that, the ball top with the sound membrane is injection moulding's in mould integral type structure.
2. The diaphragm assembly of claim 1, wherein a pressing edge connected to the diaphragm is formed at an edge of the dome.
3. The diaphragm assembly of claim 2 wherein the hold-down edge is open at the top and/or bottom of the dome.
4. The diaphragm assembly of claim 1, wherein a bonding hole is formed in the dome, the diaphragm includes a main body portion, an extension portion and a bonding portion, the bonding portion is located in the bonding hole, and the extension portion connects the main body portion and the bonding portion.
5. The diaphragm assembly of claim 4, wherein the combination hole is formed on a top surface of the dome, and the extension portion covers a partial area of the top surface of the dome; or, the combination hole is arranged on the bottom surface of the dome, and the extension part covers partial area of the bottom surface of the dome.
6. The diaphragm assembly of claim 4, wherein the bonding hole penetrates through the top surface and the bottom surface of the dome, a partial area of the top surface of the dome and a partial area of the bottom surface of the dome are covered with the extension portions, respectively, a top portion of the bonding portion is connected with the extension portion covering the top surface of the dome, and a bottom portion of the bonding portion is connected with the extension portion covering the bottom surface of the dome.
7. The diaphragm assembly of claim 4 wherein the bonding aperture is disposed proximate an edge of the dome.
8. The diaphragm assembly of claim 1 wherein the dome is a single layer structure formed from a rigid layer of material.
9. The diaphragm assembly of claim 1, wherein the dome is a composite structure formed by combining at least two rigid films, and the composite structure further comprises a foam body disposed between two adjacent rigid films.
10. The diaphragm assembly of claim 9 wherein the rigid membrane is made of aluminum or carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891911.1U CN214154818U (en) | 2020-12-02 | 2020-12-02 | Vibrating diaphragm subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891911.1U CN214154818U (en) | 2020-12-02 | 2020-12-02 | Vibrating diaphragm subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214154818U true CN214154818U (en) | 2021-09-07 |
Family
ID=77584122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022891911.1U Active CN214154818U (en) | 2020-12-02 | 2020-12-02 | Vibrating diaphragm subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214154818U (en) |
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2020
- 2020-12-02 CN CN202022891911.1U patent/CN214154818U/en active Active
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