CN105491503A - Flame retardation type damper for loudspeaker - Google Patents
Flame retardation type damper for loudspeaker Download PDFInfo
- Publication number
- CN105491503A CN105491503A CN201610000103.7A CN201610000103A CN105491503A CN 105491503 A CN105491503 A CN 105491503A CN 201610000103 A CN201610000103 A CN 201610000103A CN 105491503 A CN105491503 A CN 105491503A
- Authority
- CN
- China
- Prior art keywords
- propylene
- loud speaker
- flame retardant
- loudspeaker
- damper
- 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
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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
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a flame retardation type damper for a loudspeaker. The flame retardation type damper at least includes a combination of phenolic resin, flax, and propylene-acetylene copolymer. Through the improvement of the material of a conventional damper, an introduced copolymer elastomer effectively overcomes the defect of low damping coefficient of the conventional damper; and moreover, through the improvement of the flax and the copolymer elastomer, the damper has excellent buffer performance, high temperature resistance property, fatigue performance, humidity resistance property, impact resistance property, and flame resistance property, and 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 flame retardant type 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 flame retardant type 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 a flame retardant type bullet ripple for loud speaker, it at least includes the combination of phenolic resins, flax and propylene-acetylene copolymer.
Preferably, the described flame retardant type bullet ripple for loud speaker, wherein, with parts by weight, 100 parts, phenolic resins, 15 ~ 16 parts, flax, propylene-acetylene copolymer 6 ~ 7 parts.
Preferably, the described flame retardant type bullet ripple for loud speaker, wherein, the number-average molecular weight of described phenolic resins is 42000 ~ 43000g/mol.
Preferably, the described flame retardant type bullet ripple for loud speaker, wherein, the number-average molecular weight of described propylene-acetylene copolymer is 6000 ~ 7000g/mol.
Preferably, the described flame retardant type bullet ripple for loud speaker, wherein, in described propylene-acetylene copolymer, propylene content is 30 ~ 32wt%.
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 flax 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 flame retardant type bullet ripple for loud speaker of an embodiment, and it at least includes the combination of phenolic resins, flax and propylene-acetylene copolymer.
Wherein, with parts by weight, 100 parts, phenolic resins, 15 ~ 16 parts, flax, propylene-acetylene copolymer 6 ~ 7 parts.Propylene-acetylene 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 42000 ~ 43000g/mol.
In the above-described embodiments, the number-average molecular weight of propylene-acetylene copolymer is preferably 6000 ~ 7000g/mol.
In the above-described embodiments, in propylene-acetylene copolymer, propylene content is preferably 30 ~ 32wt%.Research finds, the content ratio of propylene 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 250 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 a flame retardant type bullet ripple for loud speaker, it at least includes the combination of phenolic resins, flax and propylene-acetylene copolymer.
2. the flame retardant type bullet ripple for loud speaker according to claim 1, is characterized in that, with parts by weight, and 100 parts, phenolic resins, 15 ~ 16 parts, flax, propylene-acetylene copolymer 6 ~ 7 parts.
3. the flame retardant type bullet ripple for loud speaker according to claim 1, is characterized in that, the number-average molecular weight of described phenolic resins is 42000 ~ 43000g/mol.
4. the flame retardant type bullet ripple for loud speaker according to claim 1, is characterized in that, the number-average molecular weight of described propylene-acetylene copolymer is 6000 ~ 7000g/mol.
5. the flame retardant type bullet ripple for loud speaker according to claim 4, is characterized in that, in described propylene-acetylene copolymer, propylene content is 30 ~ 32wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000103.7A CN105491503A (en) | 2016-01-01 | 2016-01-01 | Flame retardation type damper for loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000103.7A CN105491503A (en) | 2016-01-01 | 2016-01-01 | Flame retardation type damper for loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105491503A true CN105491503A (en) | 2016-04-13 |
Family
ID=55678153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610000103.7A Pending CN105491503A (en) | 2016-01-01 | 2016-01-01 | Flame retardation type damper for loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105491503A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001047321A2 (en) * | 1999-12-10 | 2001-06-28 | Harman International Industries, Incorporated | Regressively hinged spider |
| CN101089023A (en) * | 2006-06-14 | 2007-12-19 | 产协企业股份有限公司 | Resin composition for making vibrating diaphragm of loudspeaker |
| CN103596114A (en) * | 2012-08-16 | 2014-02-19 | 大原博 | Horn elastic wave and manufacturing method thereof |
| CN104882225A (en) * | 2015-05-05 | 2015-09-02 | 苏州斯迪克新材料科技股份有限公司 | Method of preparing anti-aging transparent conductive film |
-
2016
- 2016-01-01 CN CN201610000103.7A patent/CN105491503A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001047321A2 (en) * | 1999-12-10 | 2001-06-28 | Harman International Industries, Incorporated | Regressively hinged spider |
| CN101089023A (en) * | 2006-06-14 | 2007-12-19 | 产协企业股份有限公司 | Resin composition for making vibrating diaphragm of loudspeaker |
| CN103596114A (en) * | 2012-08-16 | 2014-02-19 | 大原博 | Horn elastic wave and manufacturing method thereof |
| CN104882225A (en) * | 2015-05-05 | 2015-09-02 | 苏州斯迪克新材料科技股份有限公司 | Method of preparing anti-aging transparent conductive film |
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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: 20160413 |