CN105407439A - Anti-fatigue damper for loudspeaker - Google Patents
Anti-fatigue damper for loudspeaker Download PDFInfo
- Publication number
- CN105407439A CN105407439A CN201610000105.6A CN201610000105A CN105407439A CN 105407439 A CN105407439 A CN 105407439A CN 201610000105 A CN201610000105 A CN 201610000105A CN 105407439 A CN105407439 A CN 105407439A
- Authority
- CN
- China
- Prior art keywords
- damper
- ethylene
- loud speaker
- loudspeaker
- endurance
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention relates to an anti-fatigue damper for a loudspeaker. The damper at least comprises a combination of a phenolic resin, wingceltis bark and ethylene-vinylacetate copolymer. According to the damper for the loudspeaker of the invention, the materials of a traditional damper are improved, and the copolymer elastomer is adopted, so that the defect of low damping coefficient of an existing damper can be eliminated; and since the wingceltis bark and the copolymer elastomer are adopted in an improved manner, the damper has excellent buffering performance, high-temperature resistance, fatigue resistance, moisture resistance, impact resistance and flame resistance, and therefore, the distortion of the loudspeaker can be further reduced.
Description
Technical field
The present invention relates to a kind of loud speaker parts, be specifically related to a kind of endurance bullet ripple for loud speaker.
Background technology
Play ripple and be again plate washer or damper, it has braking action and center maintenance effect.The outer rim and the frame that play ripple stick together, the neck playing the neck of ripple and voice coil loudspeaker voice coil and drum paper sticks together, and when it can make voice coil loudspeaker voice coil move in magnetic gap, unlikelyly encounters iron plate or magnet, also make voice coil loudspeaker voice coil and rouse the correct connection of paper and keep center, therefore also someone is referred to as centring disk; The performance playing ripple is similar with the limit of drum paper, has an impact to bass resonance F0, and the elasticity booster action being connected with appropriateness to oscillating plate, and the direction of motion of oscillating plate can be controlled.The elasticity (pliability) playing ripple coordinates with the limit of bulging paper and can be suitable for adjusting bass resonance F0.In a word, the effect playing ripple has: 1) braking action; 2) voice coil loudspeaker voice coil positioning function (i.e. center maintenance effect); 3) performance curve of loud speaker is affected, as: distortion, the technical parameters such as FO, Q value.
But in the prior art, playing ripple is generally formed by prevailing letterweight system, the bullet ripple of this material is all poor in shock-absorbing capacity, heat-resisting quantity, fatigue durability, moisture resistance, resistance to impact and anti-flammability etc., cannot meet future market to the high-quality requirement of loud speaker.
Summary of the invention
For the deficiencies in the prior art part, object of the present invention is for providing a kind of endurance bullet ripple for loud speaker, and it can have excellent shock-absorbing capacity, heat-resisting quantity, fatigue durability, moisture resistance, resistance to impact and anti-flammability.
Technical scheme of the present invention is summarized as follows:
For an endurance bullet ripple for loud speaker, it at least includes the combination of phenolic resins, wingceltis bark and ethylene-vinyl acetate copolymer.
Preferably, the described endurance bullet ripple for loud speaker, wherein, with parts by weight, 100 parts, phenolic resins, 18 ~ 20 parts, wingceltis bark, ethylene-vinyl acetate copolymer 7 ~ 8 parts.
Preferably, the described endurance bullet ripple for loud speaker, wherein, the number-average molecular weight of described phenolic resins is 40000 ~ 42000g/mol.
Preferably, the described endurance bullet ripple for loud speaker, wherein, the number-average molecular weight of described ethylene-vinyl acetate copolymer is 7000 ~ 8000g/mol.
Preferably, the described endurance bullet ripple for loud speaker, wherein, in described ethylene-vinyl acetate copolymer, ethylene contents is 23 ~ 25wt%.
The invention has the beneficial effects as follows: this case is by improving the material of tradition bullet ripple, the copolymer elastomer introduced is effective overcomes the lower defect of existing bullet wave damping coefficient, and, due to the modification of wingceltis bark and copolymer elastomer, make to play ripple and there is outstanding shock-absorbing capacity, heat-resisting quantity, fatigue durability, moisture resistance, resistance to impact and anti-flammability, thus further reduce the distortion 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 endurance bullet ripple for loud speaker of an embodiment, and it at least includes the combination of phenolic resins, wingceltis bark and ethylene-vinyl acetate copolymer.
Wherein, with parts by weight, 100 parts, phenolic resins, 18 ~ 20 parts, wingceltis bark, ethylene-vinyl acetate copolymer 7 ~ 8 parts.Ethylene-vinyl acetate copolymer, for improving the toughness of system, makes to play ripple and has higher pliability and moderate damping coefficient, and possess good fatigue durability, heat-resisting quantity, weatherability and anti-flammability.
In the above-described embodiments, the number-average molecular weight of phenolic resins is preferably 40000 ~ 42000g/mol.
In the above-described embodiments, the number-average molecular weight of ethylene-vinyl acetate copolymer is preferably 7000 ~ 8000g/mol.
In the above-described embodiments, in ethylene-vinyl acetate copolymer, ethylene contents is preferably 23 ~ 25wt%.Research finds, the content ratio of ethene can affect the impact resistance playing ripple, and can improve the style-ability playing wave material to a certain extent, can be pressed into various required shape to make this bullet wave material by easier.
This case gained bullet wave energy enough tolerates the high temperature of the highest 240 DEG C, and flame retardant rating V0 level, continuous useful life is greater than 5000 hours, and impact strength is greater than 55kJ/m
2, ultraviolet baking 48h surface nondiscolouring, do not become fragile, non-sclerous.
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 (5)
1., for an endurance bullet ripple for loud speaker, it at least includes the combination of phenolic resins, wingceltis bark and ethylene-vinyl acetate copolymer.
2. the endurance bullet ripple for loud speaker according to claim 1, is characterized in that, with parts by weight, and 100 parts, phenolic resins, 18 ~ 20 parts, wingceltis bark, ethylene-vinyl acetate copolymer 7 ~ 8 parts.
3. the endurance bullet ripple for loud speaker according to claim 1, is characterized in that, the number-average molecular weight of described phenolic resins is 40000 ~ 42000g/mol.
4. the endurance bullet ripple for loud speaker according to claim 1, is characterized in that, the number-average molecular weight of described ethylene-vinyl acetate copolymer is 7000 ~ 8000g/mol.
5. the endurance bullet ripple for loud speaker according to claim 4, is characterized in that, in described ethylene-vinyl acetate copolymer, ethylene contents is 23 ~ 25wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000105.6A CN105407439A (en) | 2016-01-01 | 2016-01-01 | Anti-fatigue damper for loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000105.6A CN105407439A (en) | 2016-01-01 | 2016-01-01 | Anti-fatigue damper for loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105407439A true CN105407439A (en) | 2016-03-16 |
Family
ID=55472637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610000105.6A Pending CN105407439A (en) | 2016-01-01 | 2016-01-01 | Anti-fatigue damper for loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105407439A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115557A (en) * | 1994-03-28 | 1996-01-24 | 松下电器产业株式会社 | Attenuator used in laudspeaker and production of same |
| JP2010258496A (en) * | 2009-04-21 | 2010-11-11 | Kuraray Co Ltd | Loudspeaker damper and method of manufacturing the same |
| CN103596114A (en) * | 2012-08-16 | 2014-02-19 | 大原博 | Horn elastic wave and manufacturing method thereof |
-
2016
- 2016-01-01 CN CN201610000105.6A patent/CN105407439A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115557A (en) * | 1994-03-28 | 1996-01-24 | 松下电器产业株式会社 | Attenuator used in laudspeaker and production of same |
| JP2010258496A (en) * | 2009-04-21 | 2010-11-11 | Kuraray Co Ltd | Loudspeaker damper and method of manufacturing the same |
| CN103596114A (en) * | 2012-08-16 | 2014-02-19 | 大原博 | Horn elastic wave and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨钢等: "乙烯-乙酸乙烯酯共聚物（EVA）的性能及应用", 《胶体与聚合物》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160316 |