CN105554642A - Long-life waterproof cone for loudspeaker - Google Patents
Long-life waterproof cone for loudspeaker Download PDFInfo
- Publication number
- CN105554642A CN105554642A CN201610000169.6A CN201610000169A CN105554642A CN 105554642 A CN105554642 A CN 105554642A CN 201610000169 A CN201610000169 A CN 201610000169A CN 105554642 A CN105554642 A CN 105554642A
- Authority
- CN
- China
- Prior art keywords
- cone
- loudspeaker
- loud speaker
- long
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
Abstract
The invention discloses a long-life waterproof cone for a loudspeaker. The long-life waterproof cone at least comprises combination of polyvinylidene fluoride, bamboo fibre and an ethylene-propylene copolymer. In the scheme, the material formula of the traditional cone is improved; due to the introduced modified fibre, the relatively low water resistance of the cone in the prior art is overcome effectively; furthermore, because the fibre and a copolymer elastomer are improved together, the cone has excellent structural strength, decay resistance and fatigue durability; the better plumpness of the loudspeaker can be kept in a full frequency band for a long time; therefore, distortion of the loudspeaker is greatly inhibited; and the tone quality of the loudspeaker is improved.
Description
Technical field
The present invention relates to a kind of acoustical material, be specifically related to a kind of loud speaker high life resistance to water cone.
Background technology
Cone is one of major part of loud speaker, has conclusive impact to the performance of loud speaker and tonequality.In loud speaker, can produce sharp pounding in magnetic field after voice coil loudspeaker voice coil connects audio signal, voice coil loudspeaker voice coil is fixed on cone, and the vibration of voice coil loudspeaker voice coil drives the vibration of cone simultaneously, and cone vibration forces air to vibrate, thus sounds.
Mainly there is following defect in conventional loudspeakers cone used: 1) moisture resistance is poor; 2) structural stability is poor; 3) spring rate is low, and fatigue durability is poor.These factors can have a strong impact on performance and the tonequality of loud speaker.
Summary of the invention
For the deficiencies in the prior art part, the object of the present invention is to provide a kind of loud speaker high life resistance to water cone, it can have excellent resistance to water, moisture-proof, fatigue durability and structural strength, thus reduces the distortion of loud speaker, improves the tonequality of loud speaker.
Technical scheme of the present invention is summarized as follows:
A kind of loud speaker high life resistance to water cone, it at least includes the combination of Kynoar, bamboo fibre and ethylene-propylene copolymer.
Preferably, described loud speaker high life resistance to water cone, wherein, with parts by weight, Kynoar 100 parts, bamboo fibre 18 ~ 20 parts, ethylene-propylene copolymer 8 ~ 10 parts.
Preferably, described loud speaker high life resistance to water cone, wherein, also comprises butadiene-styrene latex 3 ~ 4 parts.
Preferably, described loud speaker high life resistance to water cone, wherein, the thickness of described cone is 0.1 ~ 0.3mm.
The invention has the beneficial effects as follows: this case is by improving the material prescription of traditional cone, the modified fibre introduced is effective overcomes the defect that in prior art, cone resistance to water is lower, and, due to the common improvement of fiber and copolymer elastomer, cone is made to have outstanding structural strength, decay resistance and fatigue performance, make loud speaker can possess good plumpness at full frequency band for a long time, thus greatly inhibit the distortion of loud speaker, improve the tonequality of loud speaker.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, can implement according to this with reference to specification word to make those skilled in the art.
This case proposes the loud speaker high life resistance to water cone of an embodiment, and it at least includes the combination of Kynoar, bamboo fibre and ethylene-propylene copolymer.
In the above-described embodiments, with parts by weight, Kynoar 100 parts, bamboo fibre 18 ~ 20 parts, ethylene-propylene copolymer 8 ~ 10 parts.The combination of bamboo fibre and ethylene-propylene copolymer not only can give play to respective advantage, can also work in coordination with and produce new modified effect, this three kinds of components of this case effectively can improve the tensile strength of cone, resistance to water and spring rate, increase the modulus of elasticity of cone, reduce the loss coefficient of cone, thus reduce the distortion of loud speaker, improve tonequality.The number-average molecular weight of ethylene-propylene copolymer is preferably 10000 ~ 40000g/mol, and in ethylene-propylene copolymer, ethylene contents is preferably 30 ~ 70wt%.
As another embodiment of this case, wherein, cone also preferably includes butadiene-styrene latex 3 ~ 4 parts.Butadiene-styrene latex can improve the modulus of elasticity of cone, but the addition of butadiene-styrene latex should be limited, if exceed preferred scope will cause the hydraulic performance decline of cone.The solid content of butadiene-styrene latex is preferably 40 ~ 70wt%.
In the above-described embodiments, the thickness of cone is preferably 0.1 ~ 0.3mm.This thickness should be defined, if exceed preferred scope, is affected causing the tonequality of cone.
The modulus of elasticity of this case gained cone is 2000 ~ 2100, and loss coefficient is 0.036 ~ 0.038, and resistance to water is strong, and toughness is high, and structural strength is large, has good fatigue resistance and anti-flammability.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details.
Claims (4)
1. a loud speaker high life resistance to water cone, it at least includes the combination of Kynoar, bamboo fibre and ethylene-propylene copolymer.
2. loud speaker according to claim 1 high life resistance to water cone, is characterized in that, with parts by weight, and Kynoar 100 parts, bamboo fibre 18 ~ 20 parts, ethylene-propylene copolymer 8 ~ 10 parts.
3. loud speaker according to claim 2 high life resistance to water cone, is characterized in that, also comprises butadiene-styrene latex 3 ~ 4 parts.
4. loud speaker according to claim 1 high life resistance to water cone, is characterized in that, the thickness of described cone is 0.1 ~ 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000169.6A CN105554642A (en) | 2016-01-01 | 2016-01-01 | Long-life waterproof cone for loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000169.6A CN105554642A (en) | 2016-01-01 | 2016-01-01 | Long-life waterproof cone for loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105554642A true CN105554642A (en) | 2016-05-04 |
Family
ID=55833536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610000169.6A Pending CN105554642A (en) | 2016-01-01 | 2016-01-01 | Long-life waterproof cone for loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105554642A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01288100A (en) * | 1988-05-13 | 1989-11-20 | Kato Yoshiyuki | Speaker and cone for speaker and its manufacture |
| JP2004343670A (en) * | 2003-05-16 | 2004-12-02 | Yoshio Kaneko | Flat loudspeaker |
| CN201657284U (en) * | 2010-01-11 | 2010-11-24 | 深圳市博大炫彩光电科技有限公司 | Novel loudspeaker |
| CN102295806A (en) * | 2011-07-07 | 2011-12-28 | 吉林省神韵电子科技开发股份有限公司 | Speaker flat plate diaphragm made of vegetable fiber reinforced polypropylene composite material |
| CN104683923A (en) * | 2015-03-17 | 2015-06-03 | 歌尔声学股份有限公司 | Miniature loudspeaker diaphragm |
-
2016
- 2016-01-01 CN CN201610000169.6A patent/CN105554642A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01288100A (en) * | 1988-05-13 | 1989-11-20 | Kato Yoshiyuki | Speaker and cone for speaker and its manufacture |
| JP2004343670A (en) * | 2003-05-16 | 2004-12-02 | Yoshio Kaneko | Flat loudspeaker |
| CN201657284U (en) * | 2010-01-11 | 2010-11-24 | 深圳市博大炫彩光电科技有限公司 | Novel loudspeaker |
| CN102295806A (en) * | 2011-07-07 | 2011-12-28 | 吉林省神韵电子科技开发股份有限公司 | Speaker flat plate diaphragm made of vegetable fiber reinforced polypropylene composite material |
| CN104683923A (en) * | 2015-03-17 | 2015-06-03 | 歌尔声学股份有限公司 | Miniature loudspeaker diaphragm |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |