CN201042072Y - Combined vibration film for micro sound part - Google Patents
Combined vibration film for micro sound part Download PDFInfo
- Publication number
- CN201042072Y CN201042072Y CNU2007201206308U CN200720120630U CN201042072Y CN 201042072 Y CN201042072 Y CN 201042072Y CN U2007201206308 U CNU2007201206308 U CN U2007201206308U CN 200720120630 U CN200720120630 U CN 200720120630U CN 201042072 Y CN201042072 Y CN 201042072Y
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- CN
- China
- Prior art keywords
- vibration film
- diaphragm
- voice coil
- sound
- vibrating diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a compound vibration film of a micro-sound producing element, which includes a main vibration film and a hard flat vibration film. The main vibration film consists of a folding ring, a sound ring position and a ball top; wherein, the sound ring position is affixed with a hard flat vibration film. The shape of the hard flat vibration film is matched with the shape of the sound ring position. The main vibration film is round, lane-shaped or square, and the hard flat vibration film is a flat plastic vibration film. The utility model reduces the size of the folding ring and the ball top through expanding the sound ring position of the main vibration film, and a flat vibration film is arranged at the position of the expanded sound ring position and the partial shape and the hardness of the main vibration film are adjusted so that the space occupied by the vibration film is greatly reduced and the function of the utility model is better than the original main vibration film, thereby obtaining better acoustic performance including good sensitivity, frequency response and distortion, etc, thereby a thinner rotor ring type sound producing element can be produced, and the production technique is simple, the cost is low and the bulk production can be suitably achieved.
Description
Technical field
The utility model relates to the vibrating diaphragm of mini-sound device, relates in particular to a kind of composite diaphragm of mini-sound device.
Background technology
Along with mobile phone products becomes more diverse and miniaturization, this wants to reduce size on the one hand with regard to acoustics components and parts used on the inevitable requirement mobile phone products as far as possible must guarantee good acoustical behavior on the other hand.Current, the preferred embodiments that addresses this problem is exactly to dwindle the space that vibrating diaphragm occupies, and so promptly the microphone device whole structure is not exerted an influence or influences very for a short time, can reach the purpose that reduces spatial volume again.
In the prior art, also have paste metallic film on the main vibrating diaphragm or go out with plastic film hot pressing earlier with main vibrating diaphragm on the identical shape of certain local curved surface, and then be compounded in two kinds of methods of the relevant position of main vibrating diaphragm.In preceding a kind of method, metallic film has the shortcoming of the heavy and easy deformation of quality, and the processing of deformation is very difficult; In a kind of method in back, this composite diaphragm can be regulated preferably to performance under the situation of the size that changes vibrating diaphragm hardly, but technology is comparatively complicated, and cost is higher, and the space that vibrating diaphragm occupied can not be fallen very low.
As shown in Figures 1 and 2, existing vibrating diaphragm 1 comprises ring 11, voice coil loudspeaker voice coil position 12, ball top 13, the size of this three part is usually all according to canonical parameter design, as indiscriminately imitates in the middle of the design of mini-sound device, then can make ring 11 relative broads, effective radiating area is limited, and is unfavorable for improving sensitivity; And the voice coil loudspeaker voice coil position is 12 narrow, ball top 13 is bigger, easily causes high frequency distortion.
Therefore, how to provide a kind of and guaranteeing that the space that vibrating diaphragm occupied is little, and under its performance situation that can be conditioned, make the vibrating diaphragm light weight, manufacture craft is simple, and is with low cost, and the vibrating diaphragm that is fit to batch production requirements is present urgent problem.
The utility model content
Technical problem to be solved in the utility model is: a kind of composite diaphragm of mini-sound device is provided, and it can still can obtain desirable acoustical behavior and be easy to produce in batches when attenuation of microphone device thickness or performance requirement raising, and cost is low.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of composite diaphragm of mini-sound device, the plane diaphragm that comprises main vibrating diaphragm and hard, wherein said main vibrating diaphragm is made up of ring, voice coil loudspeaker voice coil position and ball top, and place, described voice coil loudspeaker voice coil position is pasted with the plane diaphragm of a hard by means of cementing layer.
Preferably, the voice coil loudspeaker voice coil position of the shape of described plane diaphragm and main vibrating diaphragm is complementary.
Preferably, described main vibrating diaphragm is circle or runway shape or square.
Preferably, described plane diaphragm is the plastic surface vibrating diaphragm.
Preferably, this cementing layer is glue or adhesive tape.
Compared with prior art, the utlity model has following technique effect: enlarge by voice coil loudspeaker voice coil position with main vibrating diaphragm, and dwindle ring and ball top size, and the voice coil loudspeaker voice coil position after expansion is provided with a plane diaphragm, and main vibrating diaphragm local shape and hardness are all adjusted, and the space that vibrating diaphragm occupied but can greatly reduce, and can reach or be better than the performance of original main vibrating diaphragm, obtain better acoustical behavior, comprise sensitivity, frequency response and distortion etc.; Thereby can produce thinner moving-coil type microphone device, and manufacture craft is simple, with low cost, be fit to very much produce in enormous quantities.Can be used for the vibrating diaphragm of moving-coil type electroacoustic transducer, as be used for the coil-moving speaker of mobile phone or the vibrating diaphragm of moving coil receiver.
Description of drawings
Fig. 1 is the vertical view of the vibrating diaphragm of existing mini-sound device.
Fig. 2 is the cutaway view of the vibrating diaphragm of existing mini-sound device.
Fig. 3 is the vertical view of main vibrating diaphragm of the composite diaphragm of the utility model mini-sound device.
Fig. 4 is the vertical view of plane diaphragm of the composite diaphragm of the utility model mini-sound device.
Fig. 5 is the cutaway view of the composite diaphragm of the utility model mini-sound device.
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment
To shown in Figure 5, the utility model provides a kind of composite diaphragm of mini-sound device, comprises a main vibrating diaphragm 1, plane diaphragm 4 as Fig. 3.
Described main vibrating diaphragm 1 improves on existing vibrating diaphragm basis and obtains, and its shape can be circle or runway shape or shape square or that other are suitable, and material is not limit.Described main vibrating diaphragm 1 passes through to enlarge the planar dimension of voice coil loudspeaker voice coil position 2, the size of dwindling ring 3, thus the effective radiating area of increase mini-sound device suitably improves sensitivity; And dwindle ring 11 sizes, and can improve the linear properties of ring 11 again, improve the low-frequency distortion of mini-sound device; Enlarge the planar dimension of voice coil loudspeaker voice coil position 12, dwindle ball and push up 13 sizes, strengthen the intensity on ball top 13, improve the mini-sound device high frequency distortion.
, to help cementing layer (scheming not shown) and be pasted with a plane diaphragm 4 and relend at 12 places, described voice coil loudspeaker voice coil position because voice coil loudspeaker voice coil position 12 planar dimensions that enlarge in order strengthening, described cementing layer preferably adopts glue or adhesive tape; The voice coil loudspeaker voice coil position of described plane diaphragm 4 shapes and described main vibrating diaphragm is complementary, and the plane diaphragm that can adopt the material of other light weight and good rigidly to make.
Claims (5)
1. the composite diaphragm of a mini-sound device comprises main vibrating diaphragm, and described main vibrating diaphragm is made up of ring, voice coil loudspeaker voice coil position and ball top, it is characterized in that: place, described voice coil loudspeaker voice coil position is pasted with the plane diaphragm of a hard by means of cementing layer.
2. the composite diaphragm of mini-sound device as claimed in claim 1, it is characterized in that: the voice coil loudspeaker voice coil position of the shape of described plane diaphragm and main vibrating diaphragm is complementary.
3. the composite diaphragm of mini-sound device as claimed in claim 1, it is characterized in that: described main vibrating diaphragm is circle or runway shape or square.
4. the composite diaphragm of mini-sound device as claimed in claim 1 or 2, it is characterized in that: described plane diaphragm is the plastic surface vibrating diaphragm.
5. the composite diaphragm of mini-sound device as claimed in claim 1, it is characterized in that: this cementing layer is glue or adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201206308U CN201042072Y (en) | 2007-06-06 | 2007-06-06 | Combined vibration film for micro sound part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201206308U CN201042072Y (en) | 2007-06-06 | 2007-06-06 | Combined vibration film for micro sound part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201042072Y true CN201042072Y (en) | 2008-03-26 |
Family
ID=39253785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201206308U Expired - Lifetime CN201042072Y (en) | 2007-06-06 | 2007-06-06 | Combined vibration film for micro sound part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201042072Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021852A1 (en) * | 2013-08-15 | 2015-02-19 | Liao Chaohong | Composite sound diaphragm |
-
2007
- 2007-06-06 CN CNU2007201206308U patent/CN201042072Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021852A1 (en) * | 2013-08-15 | 2015-02-19 | Liao Chaohong | Composite sound diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080326 |
|
| CX01 | Expiry of patent term |