CN207083221U - Acoustical generator - Google Patents
Acoustical generator Download PDFInfo
- Publication number
- CN207083221U CN207083221U CN201720867349.4U CN201720867349U CN207083221U CN 207083221 U CN207083221 U CN 207083221U CN 201720867349 U CN201720867349 U CN 201720867349U CN 207083221 U CN207083221 U CN 207083221U
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- China
- Prior art keywords
- reinforcing plate
- central part
- acoustical generator
- generator according
- polymer material
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Abstract
Technical field of acoustics is the utility model is related to, discloses a kind of acoustical generator.In the utility model, acoustical generator includes vibrational system and drives the magnetic circuit system of the vibrational system, the vibrational system includes vibrating diaphragm and voice coil loudspeaker voice coil, the vibrating diaphragm includes polymer material film, and the polymer material film is included positioned at the central part of center and from the ring portion of central part edge outward bending extension；The vibrating diaphragm also includes the reinforcing plate for being incorporated into central part；Characterized in that, the reinforcing plate forms concavo-convex complementary mating structures with the central part.The utility model can improve the water resistance of acoustical generator.
Description
Technical field
Technical field of acoustics is the utility model is related to, more particularly to a kind of acoustical generator.
Background technology
With the development of electronics industry and the improvement of people life style, people for electronic product (including mobile phone, can
Dress kind equipment etc.) waterproof requirement more and more higher.Minitype acoustic generator is as one of component important on electronic product, to it
Water resistance requirement also improves constantly.
At present, the polymer material film using silicon rubber as acoustical generator is optimal selection.And use traditional reinforcement
During harden structure, the bonding force of silicon rubber and reinforcing plate is not sufficient to ensure that 50 meters of waterproof requirement, and then greatly reduces acoustical generator
Stability and reliability, also shorten the service life of acoustical generator.
Strengthen harden structure therefore, it is necessary to optimize and surface is handled, improve polymer material film and reinforcing plate
Bonding force, come reach improve water resistance purpose.
Utility model content
The purpose of the utility model embodiment is to provide a kind of acoustical generator, can improve the water resistance of acoustical generator.
In order to solve the above technical problems, embodiment of the present utility model provides a kind of acoustical generator, including vibrational system
With the magnetic circuit system for driving the vibrational system, the vibrational system includes vibrating diaphragm and voice coil loudspeaker voice coil, and the vibrating diaphragm includes macromolecule material
Expect film, the polymer material film includes what is extended positioned at the central part of center and from central part edge outward bending
Ring portion；The vibrating diaphragm also includes the reinforcing plate for being incorporated into central part；Characterized in that, the reinforcing plate and the central part shape
Into concavo-convex complementary mating structures.
Preferably, reinforcing plate includes the breach to be formed that caved inward from periphery.
Preferably, breach is the semicircular indentations and rectangular indentation being arranged alternately.
Preferably, the thickness of reinforcing plate is 0.02~0.4mm.
Preferably, reinforcing plate is incorporated into side of the central part towards magnetic circuit system, and the lower surface of reinforcing plate and central part
Lower surface flush.
Preferably, reinforcing plate is incorporated into the side that central part deviates from magnetic circuit system, and the upper surface of reinforcing plate and central part
Upper surface flush.
Preferably, reinforcing plate is wrapped in inside central part.
Preferably, reinforcing plate is PEN reinforcing plate or aluminium foil reinforcing plate.
Preferably, polymer material film is silicone rubber membrane.
Preferably, polymer material film and reinforcing plate pass through injection moulding integrated molding.
In terms of existing technologies, reinforcing plate forms concavo-convex complementary fit knot to the utility model embodiment with central part
Structure, reinforcing plate and the bonding force of central part are improved, the water resistance of acoustical generator can be improved.
Brief description of the drawings
Fig. 1 is the stereogram for the acoustical generator that the utility model preferred embodiment provides；
Fig. 2 is sectional views of the Fig. 1 along O-O ' sections；
Fig. 3 is the schematic diagram of the vibrating diaphragm for the acoustical generator that the utility model preferred embodiment provides；
Fig. 4 is the polymer material film of the vibrating diaphragm for the acoustical generator that the utility model preferred embodiment provides and point of reinforcing plate
Xie Tu；
Fig. 5 is the polymer material film of vibrating diaphragm and the knot of reinforcing plate for the acoustical generator that the utility model preferred embodiment provides
Close schematic diagram.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each embodiment of type is explained in detail.It is however, it will be understood by those skilled in the art that each in the utility model
In embodiment, in order that reader more fully understands the application and proposes many ins and outs.But even if without these skills
Art details and many variations based on following embodiment and modification, the application technical side claimed can also be realized
Case.
As depicted in figs. 1 and 2, a kind of acoustical generator 1 that the application preferred embodiment provides includes vibrational system 10, magnetic circuit system
System 20, the frame 30 for housing vibrational system and magnetic circuit system and the pad side 40 being set up in frame 30.
As shown in Fig. 2 magnetic circuit system 20, including lower plate 21, the folded main magnet steel 22 for being located at the center position of lower plate 21,
The folded secondary magnet steel 24 being located at the marginal position of lower plate 21, the folded main pole core 23 for being located at the main upper surface of magnet steel 22, folded it is located at secondary magnetic
The consequent pole core 25 of the upper surface of steel 24.Secondary magnet steel 24 is arranged to surround main magnet steel 22 and spaced apart to be formed with main magnet steel 22
Magnetic gap 26.
As shown in figure 3, the voice coil loudspeaker voice coil 12 that vibrational system 10 includes vibrating diaphragm 11 and drives vibrating diaphragm 11 to vibrate.Vibrating diaphragm 11 is housed in pad
In side 40.Vibrating diaphragm 11 includes polymer material film 110, and polymer material film 110 includes the central part 1101 positioned at center
With from the ring portion 1102 of the edge outward bending extension of central part 1101；Vibrating diaphragm 11 also includes the reinforcement for being incorporated into central part 1101
Plate 111；Reinforcing plate 111 is incorporated in central part 1101 towards the side of magnetic circuit system 20.And the lower surface 111b of reinforcing plate 111 with
The lower surface 1101b of central part 1101 is flushed.
As shown in figure 4, reinforcing plate 111 includes the breach 111a to be formed that caved inward from periphery.Accordingly, as shown in figure 5,
The bottom side of central part 1101 extends the raised 1101a to be formed with breach 111a complementary fits towards the direction of reinforcing plate 111.Cause
And reinforcing plate 111 forms concavo-convex complementary mating structures with central part 1101.In the present embodiment, breach 111a is to be arranged alternately
Semicircle and rectangular indentation, accordingly, raised 1101a is also the semicircle that is arranged alternately and rectangular preiection, except that,
The bending place of reinforcing plate 111, semicircular indentations continuous arrangement.In the present embodiment, the thickness of reinforcing plate be preferably 0.02~
0.4mm, the quantity of breach is preferably 1~20.
In other implementations, breach 111a can also be other shapes breach, including irregular shape lack
Mouthful, raised 1101a is also accordingly the projection of complementary shape.Reinforcing plate 111 can also be incorporated in central part 1101 and deviate from magnetic circuit
The side of system 20, it can also be wrapped in inside central part 1101.
In preferred embodiment of the present utility model, polymer material film 110 and reinforcing plate 111 by integrated through injection molding into
Type.Reinforcing plate 111 is preferably PEN reinforcing plate or aluminium foil reinforcing plate.Polymer material film 110 is silicon rubber
Glued membrane.In other examples, the combination of polymer material film 110 and reinforcing plate 111 can also be realized by other means,
Such as pass through glue bonding.Polymer material film 110 and reinforcing plate 111 can also use other materials.
In terms of existing technologies, reinforcing plate 111 forms concavo-convex mutual the utility model embodiment with central part 1101
Fit structure is mended, the contact area of central part 1101 and reinforcing plate 111 is added, improves reinforcing plate 111 and central part 1101
Bonding force, the water resistance of acoustical generator 1 can be improved.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific implementation of the present utility model
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from spirit of the present utility model
And scope.
Claims (10)
1. a kind of acoustical generator, including vibrational system and the magnetic circuit system for driving the vibrational system, the vibrational system include shaking
Film and voice coil loudspeaker voice coil, the vibrating diaphragm include polymer material film, the polymer material film include positioned at center central part and
From the ring portion of central part edge outward bending extension；The vibrating diaphragm also includes the reinforcing plate for being incorporated into central part；It is special
Sign is that the reinforcing plate forms concavo-convex complementary mating structures with the central part.
2. acoustical generator according to claim 1, it is characterised in that the reinforcing plate includes caving inward what is formed from periphery
Breach.
3. acoustical generator according to claim 2, it is characterised in that the breach is the semicircular indentations and square being arranged alternately
V notch v.
4. acoustical generator according to claim 1, it is characterised in that the thickness of the reinforcing plate is 0.02~0.4mm.
5. acoustical generator according to claim 1, it is characterised in that the reinforcing plate is incorporated into the central part described in
The side of magnetic circuit system, and the lower surface of the reinforcing plate flushes with the lower surface of the central part.
6. acoustical generator according to claim 1, it is characterised in that the reinforcing plate is incorporated into the central part away from described
The side of magnetic circuit system, and the upper surface of the reinforcing plate and the upper surface flush of the central part.
7. acoustical generator according to claim 1, it is characterised in that the reinforcing plate is wrapped in inside the central part.
8. acoustical generator according to claim 1, it is characterised in that the reinforcing plate is strengthened for PEN
Plate or aluminium foil reinforcing plate.
9. acoustical generator according to claim 1, it is characterised in that the polymer material film is silicone rubber membrane.
10. acoustical generator according to claim 1, it is characterised in that the polymer material film and the reinforcing plate pass through
Injection moulding integrated molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867349.4U CN207083221U (en) | 2017-07-17 | 2017-07-17 | Acoustical generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867349.4U CN207083221U (en) | 2017-07-17 | 2017-07-17 | Acoustical generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207083221U true CN207083221U (en) | 2018-03-09 |
Family
ID=61423602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720867349.4U Expired - Fee Related CN207083221U (en) | 2017-07-17 | 2017-07-17 | Acoustical generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207083221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874093A (en) * | 2019-03-19 | 2019-06-11 | 歌尔股份有限公司 | A kind of microphone device |
| WO2022000654A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Sound producing device |
-
2017
- 2017-07-17 CN CN201720867349.4U patent/CN207083221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874093A (en) * | 2019-03-19 | 2019-06-11 | 歌尔股份有限公司 | A kind of microphone device |
| WO2022000654A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Sound producing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20210717 |