CN203722816U - Low-distortion miniature conical full-frequency loudspeaker - Google Patents
Low-distortion miniature conical full-frequency loudspeaker Download PDFInfo
- Publication number
- CN203722816U CN203722816U CN201420082806.5U CN201420082806U CN203722816U CN 203722816 U CN203722816 U CN 203722816U CN 201420082806 U CN201420082806 U CN 201420082806U CN 203722816 U CN203722816 U CN 203722816U
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- China
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- dust cap
- loudspeaker
- frequency
- voice coil
- full
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- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
A low-distortion miniature conical full-frequency loudspeaker is disclosed so as to solve a problem, which surely exists in full-frequency loudspeakers of the prior art, that distortion is caused by segmented vibration, so that the sound quality performance and high-frequency response of the full-frequency loudspeaker is improved significantly and demands of a high-grade sound box on a high-quality full-frequency loudspeaker are met. The loudspeaker is characterized by including a loudspeaker body. The loudspeaker body is provided with a paper cone, a dust cap, a small dust cap, a voice coil and a frame. The paper cone is adhesively connected with the big dust cap through glue. The top end of the voice coil is provided with the double-layer-composite-structure small dust cap. The voice coil is adhesively connected with the small cap through glue so that a three-layer dust cap cooperative action structure is formed. The low-distortion miniature conical full-frequency loudspeaker inhibits the deformation of a voice-coil circular tube on one hand and reduces interferences caused by reflected sound waves in the dust caps on the other hand so that an objective of reducing segmented vibration and finally improving high-frequency responses of the loudspeaker is achieved.
Description
Technical field
The utility model relates to a kind of loud speaker, more specifically relates to a kind of low distortion small taper full frequency speaker.
Background technology
For taper full frequency speaker, should wish to obtain a broadness and straight frequency response, but in fact due to material behavior restriction, be very inaccessible.Owing to can producing diaphagras at high band vibrating diaphragm, certainly will cause the irregular peak valley that superposeing in frequency response.So, improve the high frequency response of taper full frequency speaker, mainly from improving vibrating diaphragm diaphagras, set about.The method that tradition is improved diaphagras is mostly to start with from vibrating diaphragm itself, and by vibrating diaphragm shape, the improvement of material improves high frequency response.But the reason that produces diaphagras due to loud speaker is more complicated, only by being improved comprehensively and effectively the improvement of vibrating diaphragm shape and material.And limit because loudspeaker diaphragm materials is subject to technological level restriction and new material technology, by diaphragm materials, improve the improvement reaching diaphagras, be also very difficult.
Summary of the invention
The purpose of this utility model is: utilize a kind of low distortion small taper full frequency speaker, the problem of the distortion that the diaphagras certainly existing with solution prior art full frequency speaker causes, the tonequality performance and the high frequency response that greatly promote full frequency speaker, meet the demand of high-grade audio amplifier to high-quality full frequency speaker.
Reaching the technical scheme that the purpose of this utility model takes is: a kind of low distortion small taper full frequency speaker, it is characterized in that: comprise loud speaker body, loud speaker body is provided with cone, large dust cap, little dust cap, voice coil loudspeaker voice coil and support, cone is bonding by glue with large dust cap, voice coil loudspeaker voice coil top is provided with a little dust cap of two-layer composite, voice coil loudspeaker voice coil and little dust cap are bonding by glue, form the structure of three layers of dust cap mating reaction.
The beneficial effect that the utility model reaches is: adopt the utility model to suppress on the one hand the deformation of voice coil loudspeaker voice coil pipe, improving dust cap internal reflection sound wave causes interference on the one hand, thereby reach the object of improving diaphagras and finally improving loudspeaker high frequency response, this kind of new design is effective and easily realization suppressing aspect the diaphagras of small taper full frequency speaker, at loudspeaker diaphragm materials, be subject to technological level restriction or material behavior restriction and cannot obtain larger improvement time, this kind of improvement mode is a kind of good selection, met the demand of high-grade speaker products to high-quality high-performance full frequency speaker.
Accompanying drawing explanation
Fig. 1: structural representation of the present utility model.
Fig. 2: the utility model frequency response curve schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, architectural feature of the present utility model is more at large described.
With reference to Fig. 1, a kind of low distortion small taper full frequency speaker, it is characterized in that: comprise loud speaker body 1, loud speaker body 1 is provided with cone 2, large dust cap 3, little dust cap 4, voice coil loudspeaker voice coil 5 and support 6, cone 2 is bonding by glue with large dust cap 3, voice coil loudspeaker voice coil 5 tops are provided with a little dust cap 4 of two-layer composite, and voice coil loudspeaker voice coil 5 is bonding by glue with little dust cap 4, form the structure of three layers of dust cap mating reaction.
Above-mentioned design is different from common design part and is just being used in conjunction with of three layers of dust cap.Look at this design impact that response produces on loudspeaker medium high frequency frequency below.(seeing Fig. 2, is the frequency response curve at the 1m/1w of anechoic chamber test).
Estimate the anti-resonance frequency of a lower cone and dust cap, general setting data is as follows:
Geometric parameter: material parameter:
Semiapex angle α=52 Young's modulus E=1.3dyn/sqcm
Inward flange radius R a=12.9mm mass density ρ=0.45g/cbcm
Outward flange radius R b=23.5mm Poisson's ratio ν=0.3
Dust cap radius R d=15.4mm loss factor δ=0.05
Thickness=0.3mm velocity of sound c=1500m/s
According to F r=Ccos α/2 π R formula, calculate
The anti-resonance frequency Fc=6250Hz of cone
The anti-resonance frequency Fd=9538Hz of dust cap.
The structure of summing up three layers of dust cap mating reaction of this kind below by the improvement of peak valley on confirmation frequency response curve is to suppressing the effect of diaphagras.When only having little dust cap 4, cone is cut apart resonance, makes 6K left and right frequency response curve occur trough.When only having large dust cap 3, because large dust cap 3 has been strengthened cone rigidity, suppressed the diaphagras of cone and diaphagras frequency domain is delayed, and due to the stack of cone and dust cap radiation, within the scope of 5K-8K, frequency response is significantly promoted, but after 9K, because diaphagras has occurred dust cap, there is the peak valley of acute variation in frequency response.When greatly, when little two dust caps one work, the later frequency response of 5K becomes more smooth and level and smooth.Can find out herein, the diaphagras of large dust cap is mainly inhomogeneous the causing due to the resistance of dust cap internal radiation, after increasing little dust cap, do not change structural rigidity and the internal loss of large dust cap itself, just the air of large dust cap 3 inside is separated into three air chambers, by double air vent hole, formed smooth and easy gas channel, and little dust cap Shang Xia 4 conical design greatly reduced positive air drag, this structure make large dust cap inwall radiation resistive evenly, thereby weakened the diaphagras of large dust cap.In addition, powerful inner support effect due to 4 pairs of voice coil loudspeaker voice coil pipes of little dust cap, has suppressed voice coil loudspeaker voice coil tubing transverse vibration greatly, and then has strengthened the rigidity of cone stem, the radial diaphagras that has suppressed cone, is embodied on frequency response curve from 700Hz later all than originally more level and smooth.
In sum, the structural design of three layers of dust cap mating reaction of known this kind is effective and easily realization suppressing aspect the diaphagras of small taper full frequency speaker.And this kind of mode be for small size, the taper full frequency speaker of large voice coil loudspeaker voice coil, has generality.At loudspeaker diaphragm materials, be subject to technological level restriction or material behavior restriction and cannot obtain larger improvement time, this kind of design is a kind of good selection.
Claims (1)
1. a low distortion small taper full frequency speaker, it is characterized in that: comprise loud speaker body, loud speaker body is provided with cone, large dust cap, little dust cap, voice coil loudspeaker voice coil and support, cone is bonding by glue with large dust cap, voice coil loudspeaker voice coil top is provided with a little dust cap of two-layer composite, voice coil loudspeaker voice coil and little dust cap are bonding by glue, form the structure of three layers of dust cap mating reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082806.5U CN203722816U (en) | 2014-02-25 | 2014-02-25 | Low-distortion miniature conical full-frequency loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082806.5U CN203722816U (en) | 2014-02-25 | 2014-02-25 | Low-distortion miniature conical full-frequency loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722816U true CN203722816U (en) | 2014-07-16 |
Family
ID=51161934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420082806.5U Expired - Fee Related CN203722816U (en) | 2014-02-25 | 2014-02-25 | Low-distortion miniature conical full-frequency loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109937581A (en) * | 2016-11-21 | 2019-06-25 | 罗伯特·博世有限公司 | Loudspeaker with multistage suspension system |
| CN110324763A (en) * | 2019-07-03 | 2019-10-11 | 苏州井利电子股份有限公司 | High-fidelity cone loudspeaker |
-
2014
- 2014-02-25 CN CN201420082806.5U patent/CN203722816U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109937581A (en) * | 2016-11-21 | 2019-06-25 | 罗伯特·博世有限公司 | Loudspeaker with multistage suspension system |
| US11006220B2 (en) | 2016-11-21 | 2021-05-11 | Robert Bosch Gmbh | Loudspeaker with multiple stage suspension system |
| CN109937581B (en) * | 2016-11-21 | 2021-10-29 | 罗伯特·博世有限公司 | Loudspeaker with multi-stage suspension system |
| CN110324763A (en) * | 2019-07-03 | 2019-10-11 | 苏州井利电子股份有限公司 | High-fidelity cone loudspeaker |
| CN110324763B (en) * | 2019-07-03 | 2020-09-22 | 苏州井利电子股份有限公司 | Hi-Fi cone 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: 20140716 Termination date: 20150225 |
|
| EXPY | Termination of patent right or utility model |