CN210183518U - Vibrating diaphragm material belt for loudspeaker - Google Patents
Vibrating diaphragm material belt for loudspeaker Download PDFInfo
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- CN210183518U CN210183518U CN201921275861.5U CN201921275861U CN210183518U CN 210183518 U CN210183518 U CN 210183518U CN 201921275861 U CN201921275861 U CN 201921275861U CN 210183518 U CN210183518 U CN 210183518U
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- engineering plastic
- thermoplastic elastomer
- voice coil
- vibrating diaphragm
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to the technical field of loudspeakers, in particular to a vibrating diaphragm material belt for a loudspeaker, which comprises an engineering plastic layer, a damping rubber film layer and a thermoplastic elastomer layer; the thermoplastic elastomer layer and the damping rubber film layer are alternately overlapped from one side close to the voice coil to one side close to the ball top, and the vibrating diaphragm material belt is provided with an engineering plastic layer at one side close to the voice coil; the thickness ratio range of the engineering plastic layer, the damping rubber film layer and the thermoplastic elastomer layer is 3-8 in sequence: 10-40: 8 to 20. The utility model discloses a set up the engineering plastic layer in one side that is close to the voice coil loudspeaker voice coil in vibrating diaphragm material area, when speaker during operation, the engineering plastic layer can bear higher temperature, is difficult for appearing melting, tensile scheduling problem, can effectively improve the easy cracked problem of vibrating diaphragm, has increased the life-span of speaker.
Description
Technical Field
The utility model relates to a speaker technical field especially relates to a vibrating diaphragm material area for speaker.
Background
Conventional large amplitude loudspeaker diaphragms typically use thermoplastic elastomer materials, and composite diaphragms typically follow the a + B + a mode, for example: thermoplastic elastomer layer + glue film layer + thermoplastic elastomer layer. Due to poor temperature resistance of the thermoplastic elastomer layer, for example, the softening temperature of the TPEE material is about 170 ℃, and the melting point of the TPEE material is about 210 ℃, after high-temperature baking or power experiments, the thermoplastic elastomer layer is easy to age and become brittle or melt and stretch by heating and even crack, so that the loudspeaker is disconnected and silent.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the present invention provides a vibrating diaphragm material belt for a speaker, which can avoid the thermoplastic elastomer layer from being damaged.
In order to solve the technical problem, the utility model discloses a technical scheme be: a vibrating diaphragm material belt for a loudspeaker is positioned between a voice coil and a ball top and comprises an engineering plastic layer, a damping rubber film layer and a thermoplastic elastomer layer;
the thermoplastic elastomer layer and the damping rubber film layer are alternately overlapped from one side close to the voice coil to one side close to the ball top, and the vibrating diaphragm material belt is provided with an engineering plastic layer at one side close to the voice coil;
the thickness ratio range of the engineering plastic layer, the damping rubber film layer and the thermoplastic elastomer layer is 3-8 in sequence: 10-40: 8 to 20.
In an optional embodiment, the engineering plastic layer is made of any one of polyetheretherketone, polyimide or polytetrafluoroethylene.
In an alternative embodiment, the material of the thermoplastic elastomer layer is one or more of TPEE, TPU, and TPEE.
In an optional embodiment, the thickness ratio of the engineering plastic layer, the damping adhesive film layer and the thermoplastic elastomer layer is 7: 12: 10.
in an optional embodiment, a centering support is arranged between the engineering plastic layer and the voice coil.
In an alternative embodiment, the number of layers of the thermoplastic elastomer layer is 2.
The beneficial effects of the utility model reside in that: the utility model provides a vibrating diaphragm material area for speaker, the vibrating diaphragm material area is located between voice coil loudspeaker voice coil and the ball top, including engineering plastic layer, damping plastic film layer and thermoplastic elastomer layer, sets up engineering plastic layer through the one side of being close to the voice coil loudspeaker voice coil in the vibrating diaphragm material area, and when speaker during operation, engineering plastic layer can bear higher temperature, is difficult for appearing melting, tensile scheduling problem, is 3 ~ 8 with the thickness ratio range design on engineering plastic layer, damping plastic film layer and thermoplastic elastomer layer: 10-40: 8 ~ 20, can effectively improve the easy cracked problem of vibrating diaphragm, increase the life-span of speaker.
Drawings
Fig. 1 is a schematic structural diagram of a vibrating diaphragm material belt for a speaker according to a second embodiment of the present invention;
fig. 2 is another schematic structural diagram of a vibrating diaphragm material belt for a speaker according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a vibrating diaphragm material belt for a speaker according to a third embodiment of the present invention;
fig. 4 is another schematic structural diagram of a diaphragm material belt for a speaker according to a third embodiment of the present invention;
description of reference numerals:
1-a voice coil;
2-a dome;
3-engineering plastic layer;
4-damping adhesive film layer;
5-a thermoplastic elastomer layer;
6-centering support piece.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 4, a vibrating diaphragm material belt for a speaker according to the present invention is located between a voice coil and a dome, and includes an engineering plastic layer, a damping adhesive film layer, and a thermoplastic elastomer layer;
the thermoplastic elastomer layer and the damping rubber film layer are alternately overlapped from one side close to the voice coil to one side close to the ball top, and the vibrating diaphragm material belt is provided with an engineering plastic layer at one side close to the voice coil;
the thickness ratio range of the engineering plastic layer, the damping rubber film layer and the thermoplastic elastomer layer is 3-8 in sequence: 10-40: 8 to 20.
From the above description, the beneficial effects of the present invention are: through setting up engineering plastic layer in one side near the voice coil loudspeaker voice coil in vibrating diaphragm material area, when speaker during operation, engineering plastic layer can bear higher temperature, is difficult for appearing melting, tensile scheduling problem, and the thickness ratio range design with engineering plastic layer, damping plastic film layer and thermoplastic elastomer layer is 3 ~ 8: 10-40: 8 ~ 20, can effectively improve the easy cracked problem of vibrating diaphragm, increase the life-span of speaker.
Further, the engineering plastic layer is made of any one of polyether-ether-ketone, polyimide or polytetrafluoroethylene.
Furthermore, the material of the thermoplastic elastomer layer is one or more of TPEE, TPU and TPEE.
Further, the thickness ratio of the engineering plastic layer, the damping adhesive film layer and the thermoplastic elastomer layer is 7: 12: 10.
furthermore, a centering support sheet is arranged between the engineering plastic layer and the voice coil.
Further, the number of layers of the thermoplastic elastomer layer is 2.
Referring to fig. 1 to 4, a first embodiment of the present invention is: a vibrating diaphragm material belt for a loudspeaker is positioned between a voice coil 1 and a ball top 2 and comprises an engineering plastic layer 3, a damping rubber film layer 4 and a thermoplastic elastomer layer 5;
the thermoplastic elastomer layer 5 and the damping rubber film layer 4 are alternately overlapped from one side close to the voice coil 1 to one side close to the ball top 2, and the engineering plastic layer 3 is arranged on one side, close to the voice coil 1, of the vibrating diaphragm material belt;
the thickness ratio range of the engineering plastic layer 3, the damping adhesive film layer 4 and the thermoplastic elastomer layer 5 is 3-8 in sequence: 10-40: 8 to 20.
Referring to fig. 1 and fig. 2, a second embodiment of the present invention is different from the first embodiment in that: the thermoplastic elastomer layer 5 and the damping rubber film layer 4 are alternately overlapped from one side close to the voice coil 1 to one side close to the ball top 2, the number of layers of the thermoplastic elastomer layer 5 is 2, the number of layers of the damping rubber film layer 4 is 1, the thermoplastic elastomer layer 5 is arranged on one side of the vibrating diaphragm material belt close to the voice coil 1, and the engineering plastic layer 3 is arranged on the thermoplastic elastomer layer 5; the thickness ratio range of the engineering plastic layer 3, the damping adhesive film layer 4 and the thermoplastic elastomer layer 5 is 3-8 in sequence: 10-40: 8 to 20. The engineering plastic layer 3 is made of any one of polyether-ether-ketone, polyimide or polytetrafluoroethylene. The material of the thermoplastic elastomer layer 5 is one or more of TPEE, TPU and TPAE. The thickness ratio of the engineering plastic layer 3, the damping adhesive film layer 4 and the thermoplastic elastomer layer 5 is 7: 12: 10. and a centering support 6 is arranged between the engineering plastic layer 3 and the voice coil 1.
Referring to fig. 3 and 4, a third embodiment of the present invention is different from the second embodiment in that: thermoplastic elastomer layer 5 superposes in turn with damping glue film layer 4 from a side that is close to voice coil loudspeaker voice coil 1 to a side that is close to ball top 2, the vibrating diaphragm material area is close to voice coil loudspeaker voice coil 1's one side and is damping glue film layer 4, the number of piles on thermoplastic elastomer layer 5 and the number of piles on damping glue film layer 4 are 1.
To sum up, the utility model provides a vibrating diaphragm material area for speaker, the vibrating diaphragm material area is located between voice coil loudspeaker voice coil and the ball top, including engineering plastic layer, damping plastic film layer and thermoplastic elastomer layer, set up engineering plastic layer through the one side of being close to the voice coil loudspeaker voice coil in the vibrating diaphragm material area, when speaker during operation, engineering plastic layer can bear higher temperature, is difficult for appearing melting, tensile scheduling problem, designs engineering plastic layer, damping plastic film layer and thermoplastic elastomer layer's thickness ratio scope for 3 ~ 8: 10-40: 8 ~ 20, can effectively improve the easy cracked problem of vibrating diaphragm, increase the life-span of speaker.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. A vibrating diaphragm material belt for a loudspeaker is positioned between a voice coil and a ball top and is characterized by comprising an engineering plastic layer, a damping rubber film layer and a thermoplastic elastomer layer;
the thermoplastic elastomer layer and the damping rubber film layer are alternately overlapped from one side close to the voice coil to one side close to the ball top, and the vibrating diaphragm material belt is provided with an engineering plastic layer at one side close to the voice coil;
the thickness ratio range of the engineering plastic layer, the damping rubber film layer and the thermoplastic elastomer layer is 3-8 in sequence: 10-40: 8 to 20.
2. The strip of diaphragm material for a speaker as claimed in claim 1, wherein the engineering plastic layer is made of one of polyetheretherketone, polyimide or polytetrafluoroethylene.
3. The strip of diaphragm material for loudspeaker of claim 1, wherein the thermoplastic elastomer layer is made of one of TPEE, TPU and TPEE.
4. The vibrating diaphragm material belt for the loudspeaker of claim 1, wherein the thickness ratio of the engineering plastic layer, the damping rubber film layer and the thermoplastic elastomer layer is 7: 12: 10.
5. the strip of diaphragm material for a speaker of claim 1, wherein a centering pad is disposed between the engineering plastic layer and the voice coil.
6. The strip of diaphragm material for a loudspeaker of claim 1, wherein the number of layers of the thermoplastic elastomer layer is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275861.5U CN210183518U (en) | 2019-08-06 | 2019-08-06 | Vibrating diaphragm material belt for loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275861.5U CN210183518U (en) | 2019-08-06 | 2019-08-06 | Vibrating diaphragm material belt for loudspeaker |
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| Publication Number | Publication Date |
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| CN210183518U true CN210183518U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921275861.5U Active CN210183518U (en) | 2019-08-06 | 2019-08-06 | Vibrating diaphragm material belt for loudspeaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190003A1 (en) * | 2020-03-27 | 2021-09-30 | 歌尔股份有限公司 | Diaphragm and speaker |
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2019
- 2019-08-06 CN CN201921275861.5U patent/CN210183518U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190003A1 (en) * | 2020-03-27 | 2021-09-30 | 歌尔股份有限公司 | Diaphragm and speaker |
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