CN102843636A - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
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- CN102843636A CN102843636A CN2012103094800A CN201210309480A CN102843636A CN 102843636 A CN102843636 A CN 102843636A CN 2012103094800 A CN2012103094800 A CN 2012103094800A CN 201210309480 A CN201210309480 A CN 201210309480A CN 102843636 A CN102843636 A CN 102843636A
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- voice coil
- loud speaker
- cone
- ring
- speaker according
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Abstract
The invention provides a loudspeaker which comprises a basin frame, a voice coil accommodated in the basin frame, a main paper basin, an auxiliary paper basin and a support. The voice coil comprises a framework and a voice coil winding height, the main paper basin is fixed on the basin frame and the framework of the voice coil, the auxiliary paper basin is fixed on the support and the voice coil winding height. The loudspeaker improves smoothness and fatigue resistance and reduces resonance frequency and harmonic distortion through the support function that the main paper basin is combined with the auxiliary paper basin.
Description
Technical field
The present invention relates to a kind of loud speaker, particularly a kind of ultra-thin woofer.
Background technology
At present, electronic equipment is towards slimming, and the direction of miniaturization develops, and loud speaker is as a kind of electronic device that is widely used in electronic equipment, and is no exception.
As shown in Figure 1, be loadspeaker structure sketch map commonly used at present.In this loud speaker, be provided with location thin slice 3 between the bottom 2 of basin frame 1 and the main magnet 4.Thin slice 3 edges, location raise up, and wrap in around the main magnet 4.The middle part of location thin slice 3 is provided with tubular rivet 11, and the bottom 2 of basin frame 1 is provided with centre bore 10, tubular rivet 11 riveteds on centre bore 10, thereby realize location thin slice 32 be fixedly connected bottom the basin frame.Magnetic pole core 5 tops are provided with auxiliary magnet 12.Cone 8 outer rims are fixed on basin frame 1 outer rim, and cone 8 is fixed on the skeleton epimere of voice coil loudspeaker voice coil 6 through mesopore, and locating branch slice 7 outer rims are fixed on basin frame middle part, the skeleton stage casing that is enclosed within voice coil loudspeaker voice coil 6 of locating branch slice 7.This kind structure can realize ultra-thinization of loud speaker, so that it is applied in the various electronic equipments, particularly in the panel display apparatus.
But above-mentioned loud speaker adopts the locating branch slice of traditional structure, and this locating branch slice adopts dry goods materials such as cotton, conex, blending usually, then with locating branch slice through soaking phenolic resins, oven dry, hot-forming at last, its compliance is not good.The raising of compliance need realize through following way: the first, and improve a yarn number of fabric or reduce its thickness, the second, reduce impregnation resin content; Perhaps adopt above-mentioned two kinds of means simultaneously.Yet above method causes a consequence: when compliance strengthens; The non-linear increasing of locating branch slice, fatigue resistance descend; Cause that power capacity reduces, under the big Dynamic Signal of low frequency impacts, the critical defect that is prone to serious harmonic distortion even occurs feeling secure.
Summary of the invention
The object of the present invention is to provide a kind of loud speaker, be intended to solve existing loud speaker under the big Dynamic Signal of low frequency impacts, be prone to the problem of serious harmonic distortion.
The present invention is achieved in that a kind of loud speaker, and it comprises the basin frame and be contained in the voice coil loudspeaker voice coil in this basin frame, and main cone, secondary cone and support, this voice coil loudspeaker voice coil comprise the skeleton and the voice coil loudspeaker voice coil volume width of cloth, and this main cone is fixed in the skeleton of basin frame and this voice coil loudspeaker voice coil; This pair cone is fixed in this support and this voice coil loudspeaker voice coil volume width of cloth.
The main cone of this loud speaker comprises ring and centrum, and the material of ring is rubber or PU or polyamine fat, and ring width 3-10mm, thickness 0.15-0.6mm, its material hardness are the 15-60 degree, and this ring is fixed on basin frame outer rim, and this centrum is fixed in the skeleton of voice coil loudspeaker voice coil.
This pair cone comprises ring and centrum, and this ring is fixed in support, and this centrum is fixed in the voice coil loudspeaker voice coil volume width of cloth.The ring of secondary cone adopts rubber or PU or polyamine fat.
This support is arranged at this basin frame bottom, and support adopts non-magnet material, and support is provided with air vent hole.
This loud speaker also comprises the magnetic circuit that is arranged at basin frame bottom, and voice coil loudspeaker voice coil is arranged at the magnetic circuit top and links to each other with magnetic circuit.This magnetic circuit comprises magnetic conductive board, main magnet, upper conduction magnetic board and secondary magnet down, and it is cascading from this cone bottom.It is the metal permanent magnet that main magnet and secondary magnet adopt terres rares neodymium system or cobalt; Following magnetic conductive board and upper conduction magnetic board adopt soft iron or low-carbon steel material.
The present invention combines the supporting role of secondary cone through main cone, has improved the compliance and the fatigue-resistance characteristics of this loud speaker, has reduced the resonance frequency and the harmonic distortion of unit.
Description of drawings
Fig. 1 is the structural representation of prior art loud speaker;
Fig. 2 is the structural representation of loud speaker of the present invention;
Fig. 3 is the total harmonic distortion figures of conventional loudspeakers through the KLEPPEL test;
Fig. 4 is the total harmonic distortion figures of loud speaker of the present invention through the LEPPEL test.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Seeing also Fig. 2, is the structural representation of loud speaker of the present invention.This loud speaker comprises basin frame 1, is arranged at the magnetic circuit 2 and support 6 of basin frame 1 bottom, is contained in main cone 4 and secondary cone 3 in this basin frame 1, the voice coil loudspeaker voice coil 5 that is arranged at these magnetic circuit 2 tops and is connected with magnetic circuit.
This magnetic circuit 2 comprises magnetic conductive board 2d, main magnet 2c, upper conduction magnetic board 2b and secondary magnet 2a down, and it is cascading from this cone 1 bottom.
The present invention has improved the compliance and the fatigue-resistance characteristics of this loud speaker through the supporting role of the secondary cone 3 of main cone 4 combinations, has reduced the resonance frequency and the harmonic distortion of loud speaker.
In addition; The ring 4a of main cone 4 is designed to width 3-10mm, thickness 0.15-0.6mm; And the material of employing hardness 15-60 degree, like rubber, PU, polyamine fat material etc., because compliance is relevant with the cone size with material; Adopt above-mentioned design can further improve the compliance of loud speaker, thereby reduce harmonic distortion.
The ring 3a of secondary cone 3 also can adopt rubber, PU, polyamine fat material etc.; Cone cone 3b, 4b can adopt paper, metal or composite material; Support 6 can adopt non-magnet materials such as plastic cement, and air vent hole can also be set, and reduces the nonlinear distortion that the compression of action air causes; It is the metal permanent magnet that main magnet 2c and secondary magnet 2a adopt terres rares neodymium system or cobalt; Following magnetic conductive board 2d and upper conduction magnetic board 2b adopt soft iron or low-carbon steel material.
In order further to test low-frequency effect of the present invention; Through KLEPPEL conventional loudspeakers and loud speaker of the present invention are tested respectively under the situation of 8V and 2.83V input voltage respectively; Fig. 3 is the total harmonic distortion figures of conventional loudspeakers through the KLEPPEL test, and Fig. 4 is the total harmonic distortion figures of loud speaker of the present invention through the LEPPEL test.
Conventional loudspeakers is at the input voltage of 8V and 2.83V, and frequency is 10
2During HZ, distortion is respectively 65% and 50%.Loud speaker of the present invention under the input voltage of 8V and 2.83V, 10
2The distortion of HZ is respectively 7% and 4%, and the harmonic distortion under the low frequency obviously improves.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. loud speaker, it comprises the basin frame and is contained in the voice coil loudspeaker voice coil in this basin frame, and main cone, secondary cone and support, this voice coil loudspeaker voice coil comprise the skeleton and the voice coil loudspeaker voice coil volume width of cloth, and this main cone is fixed in the skeleton of basin frame and this voice coil loudspeaker voice coil; This pair cone is fixed in this support and this voice coil loudspeaker voice coil volume width of cloth.
2. loud speaker according to claim 1 is characterized in that, this main cone comprises ring and centrum, and this ring is fixed on basin frame outer rim, and this centrum is fixed in the skeleton of voice coil loudspeaker voice coil.
3. loud speaker according to claim 2 is characterized in that, the ring width 3-10mm of main cone, thickness 0.15-0.6mm, its material hardness are the 15-60 degree.
4. loud speaker according to claim 2 is characterized in that, the material of the ring of main cone is rubber or PU or polyamine fat.
5. loud speaker according to claim 1 is characterized in that, this support is arranged at this basin frame bottom, and this pair cone comprises ring and centrum, and this ring is fixed in support, and this centrum is fixed in the voice coil loudspeaker voice coil volume width of cloth.
6. loud speaker according to claim 5 is characterized in that, the ring of secondary cone adopts rubber or PU or polyamine fat.
7. loud speaker according to claim 1 is characterized in that, support adopts non-magnet material, and support is provided with air vent hole.
8. loud speaker according to claim 1 is characterized in that, this loud speaker also comprises the magnetic circuit that is arranged at basin frame bottom, and voice coil loudspeaker voice coil is arranged at the magnetic circuit top and links to each other with magnetic circuit.
9. loud speaker according to claim 8 is characterized in that, this magnetic circuit comprises magnetic conductive board, main magnet, upper conduction magnetic board and secondary magnet down, and it is cascading from this cone bottom.
10. loud speaker according to claim 9 is characterized in that, it is the metal permanent magnet that main magnet and secondary magnet adopt terres rares neodymium system or cobalt; Following magnetic conductive board and upper conduction magnetic board adopt soft iron or low-carbon steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103094800A CN102843636A (en) | 2012-08-28 | 2012-08-28 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103094800A CN102843636A (en) | 2012-08-28 | 2012-08-28 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102843636A true CN102843636A (en) | 2012-12-26 |
Family
ID=47370642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103094800A Pending CN102843636A (en) | 2012-08-28 | 2012-08-28 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102843636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523545A (en) * | 2011-12-27 | 2012-06-27 | 楼氏电子（北京）有限公司 | Voice coil and formation method and application thereof |
| CN109348376A (en) * | 2018-09-28 | 2019-02-15 | 歌尔股份有限公司 | Voice coil Auxiliary support portion preparation method, voice coil Auxiliary support portion and sounding device monomer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320264A (en) * | 1979-11-28 | 1982-03-16 | Siare-Societe Industrielle D'applications/Radio-Electriques | Loudspeaker with a heat resistant two-part diaphragm |
| CN87205125U (en) * | 1987-08-07 | 1988-09-14 | 杨勇 | Wide frequency band high-fidelity loudspeaker |
| CN201369818Y (en) * | 2009-03-14 | 2009-12-23 | 马新荣 | Loudspeaker for alarming apparatus of megaphone |
| CN101902676A (en) * | 2010-08-31 | 2010-12-01 | 无锡杰夫电声有限公司 | Dual-sound basin thin speaker |
| CN101909236A (en) * | 2010-07-12 | 2010-12-08 | 华南理工大学 | Spherical regular dodecahedron sound source used for near-field HRTF measurement and design method thereof |
| CN201766705U (en) * | 2010-08-31 | 2011-03-16 | 无锡杰夫电声有限公司 | Double sound basin type loudspeaker |
| CN201898608U (en) * | 2010-12-06 | 2011-07-13 | 天津中环真美声学技术有限公司 | Super thin flat-panel loudspeaker |
-
2012
- 2012-08-28 CN CN2012103094800A patent/CN102843636A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320264A (en) * | 1979-11-28 | 1982-03-16 | Siare-Societe Industrielle D'applications/Radio-Electriques | Loudspeaker with a heat resistant two-part diaphragm |
| CN87205125U (en) * | 1987-08-07 | 1988-09-14 | 杨勇 | Wide frequency band high-fidelity loudspeaker |
| CN201369818Y (en) * | 2009-03-14 | 2009-12-23 | 马新荣 | Loudspeaker for alarming apparatus of megaphone |
| CN101909236A (en) * | 2010-07-12 | 2010-12-08 | 华南理工大学 | Spherical regular dodecahedron sound source used for near-field HRTF measurement and design method thereof |
| CN101902676A (en) * | 2010-08-31 | 2010-12-01 | 无锡杰夫电声有限公司 | Dual-sound basin thin speaker |
| CN201766705U (en) * | 2010-08-31 | 2011-03-16 | 无锡杰夫电声有限公司 | Double sound basin type loudspeaker |
| CN201898608U (en) * | 2010-12-06 | 2011-07-13 | 天津中环真美声学技术有限公司 | Super thin flat-panel loudspeaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523545A (en) * | 2011-12-27 | 2012-06-27 | 楼氏电子（北京）有限公司 | Voice coil and formation method and application thereof |
| CN109348376A (en) * | 2018-09-28 | 2019-02-15 | 歌尔股份有限公司 | Voice coil Auxiliary support portion preparation method, voice coil Auxiliary support portion and sounding device monomer |
| CN109348376B (en) * | 2018-09-28 | 2020-11-24 | 歌尔股份有限公司 | Preparation method of voice coil auxiliary supporting part, voice coil auxiliary supporting part and sound generating device monomer |
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Application publication date: 20121226 |