CN202150934U - Minitype sounder capable of adjusting acoustical curve - Google Patents
Minitype sounder capable of adjusting acoustical curve Download PDFInfo
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- CN202150934U CN202150934U CN201120246666U CN201120246666U CN202150934U CN 202150934 U CN202150934 U CN 202150934U CN 201120246666 U CN201120246666 U CN 201120246666U CN 201120246666 U CN201120246666 U CN 201120246666U CN 202150934 U CN202150934 U CN 202150934U
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Abstract
The utility model discloses a minitype sounder capable of adjusting an acoustical curve. The minitype sounder comprises a pedestal provided with an accommodation tank; a magnet arranged in the accommodation tank; a voice coil suspended in the pedestal; a vibrating diaphragm combined with the top end of the voice coil and in linkage with the voice coil; a magnetic conduction disk arranged at the top end of the magnet, wherein the magnetic conduction disk is provided with a bulge, the distance from the plane of the magnetic conduction disk to the central area of the vibrating diaphragm is larger than the distance from the bulge to the central area of the vibrating diaphragm, and the distance from the bulge to the central area of the vibrating diaphragm is larger than the distance from the magnetic conduction disk to the voice coil; and an upper cover combined with the pedestal and provided with a plurality of sound outgoing holes. The minitype sounder has the efficacy of adjusting the acoustical curve of a loudspeaker, can prevent poor electroplating caused by pairwise gluing during electroplating via the bulge of the magnetic conduction disk, has the effect of distinguishing front and back surfaces, and is in favor of assembling process.
Description
Technical field
The utility model belongs to the minitype acoustic generator technical field, especially relates to a kind of bulge-structure that utilizes the magnetic conductive disk in the acoustical generator, as the minitype acoustic generator of regulating the acoustics curve.
Background technology
Along with science and technology is constantly progressive; The development of various electronic products is more quick; Wherein acoustical generator is the important spare part of the sound output of electronic product; And lightening along with electronic product, the requirement of acoustical generator is also towards the design of directions such as microminiaturization, high tone quality, low cost, in the hope of according with the demands of the market.
Shown in Figure 1 is existing acoustical generator cross-sectional view.Acoustical generator 1 includes a shell 10, a loam cake 11, a vibrating membrane 12, a voice coil loudspeaker voice coil 13, a magnetic conductive disk 14, a magnet 15.
Shell 10 offers several air vent holes 10a in the downside periphery; Magnet 15 is arranged at centre in the shell 10; Magnetic conductive disk 14 is arranged at magnet 15 tops, and vibrating membrane 12 peripheries are arranged at shell 10 inner edge platform places and pressed by loam cake 11 fixing, and the bottom of vibrating membrane 12 is fixed on voice coil loudspeaker voice coil 13 tops; And voice coil loudspeaker voice coil 13 be suspended between magnetic conductive disk 14, magnet 15 and the shell 10 around, loam cake 11 has several senders 11a; When voice coil loudspeaker voice coil 13 conductings, produce vibration by leading the magnetism drive circuit voice coil loudspeaker voice coil 13 that pole piece 14, magnet 15 and shell 10 constituted and then driving vibrating membrane 12, and sound by sender 11a.
Yet the magnetic conductive disk 14 of existing acoustical generator 1 is a flat design, and magnetic conductive disk 14 only is to be provided with die-cut fillet and die-cut burr at periphery; So make the die-cut hollows and the die-cut burr face of magnetic conductive disk 14 peripheries be difficult for identification, and when electroplating, magnetic conductive disk 14 is pasted together easily in twos; Cause poor plating; Moreover the frequency response curve of such acoustical generator 1 still need see through vibrating membrane 12 as main adjustment member, so existing acoustical generator 1 still has the bigger defective of existence.
The utility model content
In view of this; The purpose of the utility model is to provide a kind of minitype acoustic generator of scalable acoustics curve, utilizes magnetic conductive disk that one convexity is set, and is used for changing the space between vibrating membrane and the magnetic conductive disk; And then reach the acoustics curve of regulating acoustical generator, take place with the situation of avoiding distortion.
For realizing above-mentioned purpose, the minitype acoustic generator of the described scalable acoustics of the utility model curve comprises that a base has a storage tank; One magnet is arranged in the storage tank, and a voice coil loudspeaker voice coil is suspended in the base, and a vibrating membrane is incorporated into the voice coil loudspeaker voice coil top also can be with its interlock; One magnetic conductive disk is arranged at the magnet top; And magnetic conductive disk has a convexity, and the distance of the plane of magnetic conductive disk to vibrating membrane middle section is greater than the distance that is raised to the vibrating membrane middle section, and is raised to the distance of the distance of vibrating membrane middle section greater than magnetic conductive disk to voice coil loudspeaker voice coil; And one loam cake be incorporated into base, and have several senders.
The said effect with acoustics curve of regulating firefly sound device of the utility model by the convexity of magnetic conductive disk, in the time of can preventing to electroplate, be pasted the poor plating that is caused in twos, and is had the effect of distinguishing positive and negative, helps assembling procedure.
Description of drawings
Fig. 1 is existing acoustical generator cross-sectional view.
Fig. 2 is the minitype acoustic generator decomposition texture sketch map of the said scalable acoustics of the utility model curve.
Fig. 3 is the minitype acoustic generator cross-sectional view of the described scalable acoustics of the utility model curve.
Fig. 4 is the frequency curve comparison diagram.
[primary clustering symbol description]
Embodiment
Explain further details below in conjunction with meeting with the minitype acoustic generator of specific embodiment to the described scalable acoustics of the utility model curve.
Shown in Figure 2 is the minitype acoustic generator decomposition texture sketch map of the said scalable acoustics of present embodiment curve.Minitype acoustic generator 100 includes a base 20, a magnet 30, a magnetic conductive disk 40, a voice coil loudspeaker voice coil 50, a vibrating membrane 60, a loam cake 70.
Magnetic conductive disk 40 is arranged at the top of magnet 30, and magnetic conductive disk 40 surperficial central authorities are provided with one protrudingly 41, and its protrusions 41 can be arc sphere, cylindricality or other shapes.
Voice coil loudspeaker voice coil 50 is hung on the periphery between storage tank 21, magnetic conductive disk 40 and the magnet 30, and the magnetism drive circuit that constituted by magnetic conductive disk 40, magnet 30 and base 20.
Vibrating membrane 60 bottoms are incorporated into voice coil loudspeaker voice coil 50 tops, can be with voice coil loudspeaker voice coil 50 interlocks.
When voice coil loudspeaker voice coil 50 received current lead-through, the magnetic field that voice coil loudspeaker voice coil 50 and magnetic circuit are produced produces magnetic or magnetic scolded effect and vibrates, and then drove vibrating membrane 60 and produce vibration, produced sound so that promote ambient air, and sounded from sender 71.
Shown in Figure 3 is the minitype acoustic generator cross-sectional view of the said scalable acoustics of present embodiment curve.The periphery of vibrating membrane 60 is connected to the inner peripheral of base 20; And the periphery of vibrating membrane 60 receives the abutting part 72 of loam cake 70 to compress and locate, and present embodiment can provide magnetic conductive disk 40 when electroplating by convexity 41 settings of magnetic conductive disk 40; Prevent to paste in twos, and help differentiating the positive and negative effect; Moreover magnetic conductive disk 40 planes to vibrating membrane 60 middle sections distance is D1, and convexity 41 to vibrating membrane 60 middle sections distance is D2, and protruding 41 height values from magnetic conductive disk 40 protuberances are D3; And magnetic conductive disk 40 to voice coil loudspeaker voice coil distance is D4, and satisfies D1-D2=D3, D1>D2>D4, in the present embodiment; D3 is 0.2mm, and D1 is 1.3mm, and D4 is 0.25mm, so D2 is between 1.3 mm to 0.25mm; And D2 can be 1.1mm, and when D3 greater than 0.2mm, promptly protruding 41 during the closer to vibrating membrane 60, D2 is then less than 1.1mm; So when D3 be 0.2mm when above, magnetic conductive disk 40 has changed the inner space of minitype acoustic generator 100, i.e. space between magnetic conductive disk 40 and the vibrating membrane 60; So can be used as the frequency response curve of regulating minitype acoustic generator 100, as shown in Figure 4, the curve A representative is the measured frequency response curve of minitype acoustic generator 100 among the figure; Curve B because the magnetic conductive disk 40 of present embodiment is provided with convexity 41, makes curve A have more level and smooth line style at high-frequency region for the existing measured frequency response curve of acoustical generator; And curve B has uneven peak valley in the high-frequency region generation, and by contrast, the described minitype acoustic generator 100 of present embodiment does not have the distortion situation of existing acoustical generator.
Comprehensively above-mentioned; The minitype acoustic generator of the described scalable acoustics of the utility model curve; Magnetic conductive disk by minitype acoustic generator is provided with a convexity; Be used for changing the space between magnetic conductive disk and the vibrating membrane, make the frequency response curve of minitype acoustic generator have more level and smooth line style, do not have the situation that produces distortion in the prior art in high-frequency region.
Moreover by the setting of convexity, magnetic conductive disk can prevent to paste in twos and makes the situation of poor plating when electroplating, and has the effect that can distinguish positive and negative, helps assembling procedure.
The above is merely enumerative, but not restraint-type.Any spirit and category that does not break away from the utility model, and to its equivalent modifications of carrying out or change, all should be contained in the protection range of the utility model.
Claims (6)
1. the minitype acoustic generator of a scalable acoustics curve is characterized in that, comprising:
One base has a storage tank;
One magnet is arranged in this storage tank;
One voice coil loudspeaker voice coil is suspended in this base;
One vibrating membrane, being incorporated into this voice coil loudspeaker voice coil top also can be with its interlock;
One magnetic conductive disk is arranged at this magnet top, and this magnetic conductive disk has a convexity,
The distance of the plane of this magnetic conductive disk to this vibrating membrane middle section is raised to the distance of this vibrating membrane middle section greater than this, and this is raised to the distance of the distance of this vibrating membrane middle section greater than this magnetic conductive disk to this voice coil loudspeaker voice coil; And
One loam cake is incorporated into this base, and has several senders.
2. the minitype acoustic generator of scalable acoustics curve as claimed in claim 1 is characterized in that: said height of projection is 0.2mm.
3. the minitype acoustic generator of scalable acoustics curve as claimed in claim 1 is characterized in that: the distance of the plane of said magnetic conductive disk to this vibrating membrane middle section is 1.3mm.
4. the minitype acoustic generator of scalable acoustics curve as claimed in claim 1 is characterized in that: the distance of said magnetic conductive disk to this voice coil loudspeaker voice coil is 0.25mm.
5. the minitype acoustic generator of scalable acoustics curve as claimed in claim 1 is characterized in that: the storage tank periphery ring of said base is provided with several air vent holes.
6. the minitype acoustic generator of scalable acoustics curve as claimed in claim 1 is characterized in that: said loam cake has one and is used for this vibrating membrane is fixed in the abutting part on this base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120246666U CN202150934U (en) | 2011-07-13 | 2011-07-13 | Minitype sounder capable of adjusting acoustical curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120246666U CN202150934U (en) | 2011-07-13 | 2011-07-13 | Minitype sounder capable of adjusting acoustical curve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150934U true CN202150934U (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120246666U Expired - Fee Related CN202150934U (en) | 2011-07-13 | 2011-07-13 | Minitype sounder capable of adjusting acoustical curve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662135A (en) * | 2019-09-29 | 2020-01-07 | 歌尔股份有限公司 | Magnetizer and sound production device |
-
2011
- 2011-07-13 CN CN201120246666U patent/CN202150934U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662135A (en) * | 2019-09-29 | 2020-01-07 | 歌尔股份有限公司 | Magnetizer and sound production device |
| CN110662135B (en) * | 2019-09-29 | 2022-07-01 | 潍坊歌尔丹拿电子科技有限公司 | Magnetizer and sound production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20120222 Termination date: 20180713 |