CN102790935B - The suppressing method of a kind of high frequency compression drivers and harmonic distortion thereof - Google Patents
The suppressing method of a kind of high frequency compression drivers and harmonic distortion thereof Download PDFInfo
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- CN102790935B CN102790935B CN201110132387.2A CN201110132387A CN102790935B CN 102790935 B CN102790935 B CN 102790935B CN 201110132387 A CN201110132387 A CN 201110132387A CN 102790935 B CN102790935 B CN 102790935B
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- vibrating diaphragm
- voice coil
- mechanical stiffness
- high mechanical
- distortion
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Abstract
The present invention relates to a kind of horn type tweeter, particularly a kind of high frequency compression drivers of tweeter and the suppressing method of harmonic distortion thereof, comprise high mechanical stiffness cell structure, the vibrating diaphragm of high frequency compression drivers and the voice coil loudspeaker voice coil of motion are arranged in high mechanical stiffness cell structure; Described high mechanical stiffness cell structure is made up of upper and lower two high mechanical stiffness rooms; The voice coil loudspeaker voice coil of vibrating diaphragm and motion is arranged among upper and lower two high mechanical stiffness rooms.The present invention is by making two high mechanical stiffness rooms of vibrating diaphragm and voice coil loudspeaker voice coil motion, the nonlinear distortion that the vibrating diaphragm cup air moved up and down in order to offset vibrating diaphragm causes and reduction vibrating diaphragm displacement, namely reduce the nonlinear distortion that aditus laryngis large amplitude sonic transmissions causes, reach the suppression of distortion.
Description
Technical field:
The present invention relates to a kind of horn type tweeter, particularly a kind of high frequency compression drivers of tweeter and the suppressing method of harmonic distortion thereof.
Background technology:
The distortion that existing compressed drive is main, the nonlinear distortion that the nonlinear distortion mainly caused from vibrating diaphragm cup air and aditus laryngis large amplitude sonic transmissions cause.Above-mentioned nonlinear distortion reason be 2 times, 3 subharmonic distortions are all very high, especially the highest with 2 subharmonic distortions, common compressed drive total harmonic distortion is higher than 5%, root is all aeromechanics distortion, namely come from the upper and lower aeromechanics stiffness of vibrating diaphragm unbalanced caused by, be cause the professional loudspeaker system reason why high band distortion is large, music is ear-piercing.The distortion that the asymmetric field distortion that other secondary such as magnetic Circuit Design are in addition introduced, the nonlinear distortion of surround etc. bring.
The method of the upper current improvement distortion that can see both at home and abroad, mostly make an issue of with in minor matters in the bonding accuracy of voice coil loudspeaker voice coil etc. at the utilization of some vibrating diaphragm new materials, phase equalizer and the cooperation of vibrating diaphragm, the superior and vibrating diaphragm of aditus laryngis mould of plastics, these effort increase although all can promote high frequency compression drivers performance, but high frequency compression drivers 2 times, 3 subharmonic distortions all effectively will be limited in 1% (-40dB) below, until all cannot reach at present.
Summary of the invention:
The present invention is just in order to solve the suppressing method of a kind of high frequency compression drivers harmonic distortion that the nonlinear distortion of unbalanced for aeromechanics stiffness introducing can be reduced that above-mentioned the deficiencies in the prior art are researched and developed.
The present invention can be realized by following technological means:
A kind of high frequency compression drivers, comprise high mechanical stiffness cell structure, the vibrating diaphragm of high frequency compression drivers and the voice coil loudspeaker voice coil of motion are arranged in high mechanical stiffness cell structure; Described high mechanical stiffness cell structure is made up of upper and lower two high mechanical stiffness rooms; The voice coil loudspeaker voice coil of vibrating diaphragm and motion is arranged among upper and lower two high mechanical stiffness rooms.
The suppressing method of above-mentioned high frequency compression drivers harmonic distortion: the voice coil loudspeaker voice coil of vibrating diaphragm and motion is placed in upper and lower high mechanical stiffness cell structure, the Lorentz force making vibrating diaphragm suffered up and down, by the equal mechanical stiffness conservation existed separately, reduces the nonlinear distortion of unbalanced for aeromechanics stiffness introducing; During upper and lower two high mechanical stiffness room work, the nonlinear distortion that the vibrating diaphragm cup air moved up and down in order to offset vibrating diaphragm causes and reduction vibrating diaphragm displacement, namely reduce the nonlinear distortion that large amplitude sonic transmissions causes, reach the suppression of distortion.
The present invention is by making two high mechanical stiffness rooms of vibrating diaphragm and voice coil loudspeaker voice coil motion, the nonlinear distortion that the vibrating diaphragm cup air moved up and down in order to offset vibrating diaphragm causes and reduction vibrating diaphragm displacement, namely reduce the nonlinear distortion that aditus laryngis large amplitude sonic transmissions causes, reach the suppression of distortion.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Specific embodiment:
As shown in Figure 1, a kind of high frequency compression drivers, comprises high mechanical stiffness cell structure and magnetic part 5, and the vibrating diaphragm 1 of high frequency compression drivers is arranged in high mechanical stiffness cell structure with the voice coil loudspeaker voice coil 4 of motion; Described high mechanical stiffness cell structure is made up of upper high mechanical stiffness room 2 and lower high mechanical stiffness room 3; Vibrating diaphragm 1 is arranged among upper and lower two high mechanical stiffness rooms with the voice coil loudspeaker voice coil 4 of motion.
By the suppressing method of a kind of high frequency compression drivers harmonic distortion of the present invention, from the main distortion factor of high frequency compression drivers harmonic distortion come from the upper and lower aeromechanics stiffness of vibrating diaphragm unbalanced caused by set about, vibrating diaphragm 1 and the voice coil loudspeaker voice coil 4 of motion are placed in high mechanical stiffness cell structure, the Lorentz force making vibrating diaphragm suffered up and down, by the equal mechanical stiffness conservation existed separately, reduces the nonlinear distortion of unbalanced for aeromechanics stiffness introducing.High mechanical stiffness cell structure is made up of two high mechanical stiffness rooms.The upper high mechanical stiffness room 1 that vibrating diaphragm 1 and voice coil loudspeaker voice coil 4 are moved and lower high mechanical stiffness room 2, the nonlinear distortion that the vibrating diaphragm 1 cup air moved up and down in order to offset vibrating diaphragm causes and reduction vibrating diaphragm 1 displacement, namely reduce the nonlinear distortion that large amplitude sonic transmissions causes, reach the suppression of distortion.
Although it is pointed out that to invention has been detailed description here, with regard to this area staff, the similar amendment of the class Sihe made on this basis all should belong to scope.
Claims (1)
1. a suppressing method for high frequency compression drivers harmonic distortion, is characterized in that:
Described high frequency compression drivers comprises high mechanical stiffness cell structure, and the vibrating diaphragm of high frequency compression drivers and the voice coil loudspeaker voice coil of motion are arranged in high mechanical stiffness cell structure; Described high mechanical stiffness cell structure is made up of upper and lower two high mechanical stiffness rooms; The voice coil loudspeaker voice coil of vibrating diaphragm and motion is arranged among upper and lower two high mechanical stiffness rooms;
The voice coil loudspeaker voice coil of vibrating diaphragm and motion is placed in upper and lower high mechanical stiffness cell structure, and the Lorentz force making vibrating diaphragm suffered up and down, by the equal mechanical stiffness conservation existed separately, reduces the nonlinear distortion of unbalanced for aeromechanics stiffness introducing; During upper and lower two high mechanical stiffness room work, the nonlinear distortion that the vibrating diaphragm cup air moved up and down in order to offset vibrating diaphragm causes and reduction vibrating diaphragm displacement, namely reduce the nonlinear distortion that large amplitude sonic transmissions causes, reach the suppression of distortion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110132387.2A CN102790935B (en) | 2011-05-20 | 2011-05-20 | The suppressing method of a kind of high frequency compression drivers and harmonic distortion thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110132387.2A CN102790935B (en) | 2011-05-20 | 2011-05-20 | The suppressing method of a kind of high frequency compression drivers and harmonic distortion thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102790935A CN102790935A (en) | 2012-11-21 |
| CN102790935B true CN102790935B (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110132387.2A Expired - Fee Related CN102790935B (en) | 2011-05-20 | 2011-05-20 | The suppressing method of a kind of high frequency compression drivers and harmonic distortion thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102790935B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246566B (en) * | 2018-10-09 | 2020-05-12 | 歌尔股份有限公司 | MEMS sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2744104Y (en) * | 2004-07-19 | 2005-11-30 | 王永明 | Omnidirectional loudspeaker |
| CN101790124A (en) * | 2010-01-10 | 2010-07-28 | 广州市锐丰建业灯光音响器材有限公司 | Novel linear medium-high frequency compressed drive |
| CN202206538U (en) * | 2011-05-20 | 2012-04-25 | 博士科技（深圳）有限公司 | High-frequency compression driver |
-
2011
- 2011-05-20 CN CN201110132387.2A patent/CN102790935B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2744104Y (en) * | 2004-07-19 | 2005-11-30 | 王永明 | Omnidirectional loudspeaker |
| CN101790124A (en) * | 2010-01-10 | 2010-07-28 | 广州市锐丰建业灯光音响器材有限公司 | Novel linear medium-high frequency compressed drive |
| CN202206538U (en) * | 2011-05-20 | 2012-04-25 | 博士科技（深圳）有限公司 | High-frequency compression driver |
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| Publication number | Publication date |
|---|---|
| CN102790935A (en) | 2012-11-21 |
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| CF01 | Termination of patent right due to non-payment of annual fee |