CN202261779U - Electro-acoustic transducer - Google Patents
Electro-acoustic transducer Download PDFInfo
- Publication number
- CN202261779U CN202261779U CN2011203218236U CN201120321823U CN202261779U CN 202261779 U CN202261779 U CN 202261779U CN 2011203218236 U CN2011203218236 U CN 2011203218236U CN 201120321823 U CN201120321823 U CN 201120321823U CN 202261779 U CN202261779 U CN 202261779U
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- sound film
- voice coil
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Abstract
The utility model provides an electro-acoustic transducer which is characterized by comprising a magnet and a vibration part, wherein the vibration part comprises a sound coil and a sound film, and at least one dynamic mass point is arranged at the front side of the sound film and/or the back side of the sound film and/or between the sound coil and the sound film. One dynamic mass point is added on the axial wire of the electro-acoustic transducer, so that the characteristic of the original sound field is changed, the tone quality is greatly improved, and the cost is reduced.
Description
Technical field
The utility model relates to electroacoustic conversion field, particularly a kind of electro-acoustic conversion device.
Background technology
The critical component of sound playing system of the prior art is a sound-electricity conversion device, and at present, sound-electricity conversion device adopts the electromagnetism coil-moving speaker more.Though experience the technological transformation in more than 100 year, its basic principle does not have substantial progress, has therefore determined electroacoustic converting system of the prior art on tonequality, can't substantially carry out the high-fidelity reduction to original sound.
Fig. 1 shows the structural representation of electro-acoustic conversion device of the prior art.As shown in Figure 1, electro-acoustic conversion device of the prior art (particularly loud speaker) comprises basin frame 1, magnet 2, magnetic conductive board 3, voice coil loudspeaker voice coil 4, bullet ripple 5, cone 6 and the sound film 7 that is provided with along central shaft 8.Because electroacoustic signal is a transient signal; And the weight of whole vibrating mass (being voice coil loudspeaker voice coil, bullet ripple, cone and sound film) is lighter, and the rigidity of cone is stronger, therefore; The vibrating mass response time, relative electroacoustic signal was shorter; Thereby cause most of sound wave to propagate, and can cause concentration of energy, make the strong reflection of formation in limited audition space along direction 9; Further, the sound wave because of same frequency can produce interference, the feasible original sound that can't really reduce.
The utility model content
The utility model provides a kind of simple in structure, tonequality good, cost is low electro-acoustic conversion device.
For solving the problems of the technologies described above; The utility model provides a kind of electro-acoustic conversion device; It is characterized in that; Comprise magnet and vibrating mass, said vibrating mass comprises voice coil loudspeaker voice coil and sound film, in the front of said sound film and/or at the reverse side of said sound film and/or between said voice coil loudspeaker voice coil and sound film, be provided with one or more dynamic particles.
Further, said dynamic particle is circular or conical or hemisphere.
Further, said sound film has recess, and said dynamic particle is filled in the said recess.
Further, said dynamic particle is a plurality of, and said a plurality of dynamic particles are separately positioned on the said sound film.
Further, said dynamic particle is a plurality of, and said a plurality of dynamic particles are separately positioned on the said sound film and reach between said voice coil loudspeaker voice coil and the sound film.
The utility model has changed the characteristic of original sound field through increasing by a dynamic particle on the axis therein, makes tonequality increase substantially and has reduced cost.
Description of drawings
Fig. 1 is the structural representation of electro-acoustic conversion device of the prior art.
Fig. 2 is the structural representation of the electro-acoustic conversion device in the utility model.
Embodiment
As an aspect of the utility model, the utility model provides a kind of electro-acoustic conversion device.Fig. 2 shows the structural representation of the electro-acoustic conversion device in the utility model.As shown in Figure 2; Said electro-acoustic conversion device (preferably; Be loud speaker) comprise magnet 2 and vibrating mass; Said vibrating mass comprises voice coil loudspeaker voice coil 4 and sound film 8, is provided with one or more dynamic particles 7 in the front of said sound film 8 and/or between the reverse side of said sound film 8 and/or said voice coil loudspeaker voice coil 4 and sound film 8.Said sound film 8 has recess preferably among the embodiment at one, and said dynamic particle 7 is filled in the said recess, especially, forms said dynamic particle 7 in the said recess thereby solid gum is filled in.In a preferred embodiment; Said dynamic particle 7 is a plurality of; Said a plurality of dynamic particle 7 is separately positioned on the said sound film; For example can all be arranged on the front of said sound film, also can all be arranged on the reverse side of said sound film, can also be arranged on simultaneously on the obverse and reverse of said sound film.In a preferred embodiment, said dynamic particle is a plurality of, and said a plurality of dynamic particles are separately positioned on simultaneously on the said sound film and reach between said voice coil loudspeaker voice coil and the sound film.
Preferably, said electro-acoustic conversion device also comprises the bullet ripple 5 and cone 6 that is enclosed within said voice coil loudspeaker voice coil outside.Preferably, said electro-acoustic conversion device also comprises basin frame 1 and magnetic conductive board 3.Said magnet 2, vibrating mass, bullet ripple 5 and, cone 6, basin frame 1 and magnetic conductive board 3 be arranged on the same axis 9.Said basin frame 1 has a cavity; Said magnet and magnetic conductive board 3 place in the said cavity; First end of said voice coil loudspeaker voice coil 4 is arranged in said basin frame 1 and magnet, the formed annular gap of magnetic conductive board; Said bullet ripple and cone are enclosed within the outside of said voice coil loudspeaker voice coil, and second end of said voice coil loudspeaker voice coil is provided with said sound film.
This dynamic particle 7 is followed said vibrating mass and is moved reciprocatingly together along with the amplitude of electroacoustic signal and frequency.After increasing said dynamic particle 7; Because dynamically particle 7 has certain weight, thereby, when electroacoustic signal promotes said dynamic particle 7 to certain displacement; Need through the regular hour, thereby make said vibrating mass in motion process, always lag behind electroacoustic signal; Further; Dynamically the moving range of particle 7 is to follow the amplitude of electroacoustic signal to determine with the moving range of vibrating mass (being meant cone 6 and the FROM that plays ripple 5); Therefore can force the direction shuttle-scanning of sound wave axis 9 in said moving range, and press the direction propagation of first direction 10.Like this; Because the location following electroacoustic signal of vibrating mass is multiple mobile in living of not stopping, thereby make sound wave, thereby formed stereophonic field in synchronization, propagation overlappingly in said moving range; Reduced the chance that same sound wave is frequently interfered each other greatly; Make that weave in is forming complex wave on first direction 10 and second direction 11 for sound wave, the characteristic of this complex wave is more near the sound wave of natural sound source, reached high-true and reduced the effect of original sound wave.In addition,, make the resonance frequency of haveing suffered vibrational system decline to a great extent, be easy to just can realize supper bass because dynamically particle has weight, and the supper bass needed result that is vocal music.
Wherein, The reason that sound wave is propagated by first direction 10 is: after increasing said dynamic particle 7; Dynamically particle 7 has applied a precompression to voice coil loudspeaker voice coil 4; When electroacoustic signal promotes said vibrating mass, because thrust and pulling force that the relative voice coil loudspeaker voice coil 4 of dynamic particle produces have formed a reaction force simultaneously; Said reaction force and said thrust and pulling force can force sound film 8 and cone 6 to produce deformation, and sound film 8 and cone 6 are vibrated by first direction 10 and the both direction shown in the second direction 11 by the amplitude and the frequency of electroacoustic signal.Like this; Both limited the moving range of said vibrating mass, avoided again, the excessive problem of amplitude that electroacoustic signal is produced when promoting said vibrating mass because of vibrating mass weight when too light; Need to prove distortion when excessive amplitude directly makes electroacoustic signal be converted into sound wave.
Preferably, dynamically the weight of particle 7 confirms that by power, said moving range, cone and sound membrane material and shape preferably, the weight of dynamic particle 7 is 1 to 2 times of vibrating mass weight.Preferably, dynamically particle 7 be circle or circular cone, hemisphere, when dynamic particle is arranged on front or the reverse side of sound film 8, can easily realize alt pitch matches, can reach and the more approaching effect of original vocal music tone.
Preferably, in order further to promote tonequality, the shape of cone 6 can be a sphere shape.Preferably, magnet 2 adopts ndfeb magnet.
The utility model has changed the characteristic of original sound field through increasing by a dynamic particle on the axis therein, makes tonequality increase substantially and has reduced cost.
Claims (5)
1. electro-acoustic conversion device; It is characterized in that; Comprise magnet and vibrating mass, said vibrating mass comprises voice coil loudspeaker voice coil and sound film, in the front of said sound film and/or at the reverse side of said sound film and/or between said voice coil loudspeaker voice coil and sound film, be provided with one or more dynamic particles.
2. electro-acoustic conversion device as claimed in claim 1 is characterized in that, said dynamic particle is circular or conical or hemisphere.
3. according to claim 1 or claim 2 electro-acoustic conversion device is characterized in that said sound film has recess, and said dynamic particle is filled in the said recess.
4. according to claim 1 or claim 2 electro-acoustic conversion device is characterized in that said dynamic particle is a plurality of, and said a plurality of dynamic particles are separately positioned on the said sound film.
5. according to claim 1 or claim 2 electro-acoustic conversion device is characterized in that said dynamic particle is a plurality of, said a plurality of dynamic particles be separately positioned on the said sound film and said voice coil loudspeaker voice coil and sound film between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203218236U CN202261779U (en) | 2011-08-29 | 2011-08-29 | Electro-acoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203218236U CN202261779U (en) | 2011-08-29 | 2011-08-29 | Electro-acoustic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202261779U true CN202261779U (en) | 2012-05-30 |
Family
ID=46122953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203218236U Expired - Fee Related CN202261779U (en) | 2011-08-29 | 2011-08-29 | Electro-acoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202261779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957990A (en) * | 2011-08-29 | 2013-03-06 | 何永平 | Electro-acoustic conversion device and tone quality adjusting method thereof |
| CN103220604A (en) * | 2012-08-30 | 2013-07-24 | 苏州上声电子有限公司 | Vibrating diaphragm for loudspeaker and loudspeaker |
-
2011
- 2011-08-29 CN CN2011203218236U patent/CN202261779U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957990A (en) * | 2011-08-29 | 2013-03-06 | 何永平 | Electro-acoustic conversion device and tone quality adjusting method thereof |
| CN103220604A (en) * | 2012-08-30 | 2013-07-24 | 苏州上声电子有限公司 | Vibrating diaphragm for loudspeaker and loudspeaker |
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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 |
Granted publication date: 20120530 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |