CN203984646U - Flat audio amplifier - Google Patents
Flat audio amplifier Download PDFInfo
- Publication number
- CN203984646U CN203984646U CN201420425218.7U CN201420425218U CN203984646U CN 203984646 U CN203984646 U CN 203984646U CN 201420425218 U CN201420425218 U CN 201420425218U CN 203984646 U CN203984646 U CN 203984646U
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- China
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- vibrating membrane
- lower panel
- top panel
- arranges
- panel
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Abstract
Flat audio amplifier, comprise top panel, lower panel, vibrating membrane and every cotton, vibrating membrane is connected between top panel and lower panel, two-layerly every cotton, be positioned over respectively between vibrating membrane and top panel and between vibrating membrane and lower panel, top panel arranges some ventilative sound transmission aperture, between ventilative sound transmission aperture, be spaced some powerful magnetic patch, top panel edge arranges some location and installation hole, lower panel arranges some powerful magnetic patch and a fixture that is used for fixing vibrating membrane, lower panel edge arranges some location and installation hole, diaphragm face is printed ultra-thin copper coil, vibrating membrane edge arranges fixing hole corresponding to the location and installation hole of top panel and lower panel.Flat audio amplifier of the present utility model has met the microminiaturized market of sound equipment electrical equipment and has done thinner and thinner, the trend that size is more and more less, have advantages of simple in structure, be easy to manufacture, with low cost, practicality and high efficiency and aesthetic in appearance.
Description
Technical field
The utility model relates to the equipment technical field of raising one's voice, and is specifically related to a kind of flat audio amplifier.
Background technology
Audio amplifier refers to audio signal to be transformed to a kind of equipment of sound.Household electrical appliance microminiaturization has become the market trend in the market of the coming years, and technical staff wishes to develop thinner speaker products, the demand of condenser attenuation after meeting, and this is also the inexorable trend in audio amplifier development reply market.
The cone benzvalene form exciter that traditional audio amplifier adopts mostly and the resonant tank of large volume, along with the increase of power of loudspeaker, the size of exciter and resonant tank also can correspondingly increase, and this obviously can not meet the microminiaturized demand for development of audio amplifier.
Coil-moving speaker small volume of the prior art, its structure comprises moving-coil type coil, locating support, magnetic circuit device and diaphragm, magnetic circuit device is comprised of magnet ring and magnet, diaphragm is fitted in the outer surface of moving-coil type coil, moving-coil type coil encircling is at the outer surface of magnet, moving-coil type coil can produce magnetic field and form magnetic loop with magnetic circuit device after energising, thereby moving-coil type coil can be with diaphragm up-down vibration sounding under the effect of magnetic force.But moving-coil type coil is coiled to form by copper cash, if improved the performance of loud speaker, certainly will to increase the length of moving-coil type coil, when the length of moving-coil type coil increases, its thickness also certainly will also will increase, cause himself thickness larger, and when using moving-coil type coil, between magnetic circuit device and moving-coil type coil, also need headspace, existing coil-moving speaker prevents moving-coil type coil when up-down vibration and magnetic circuit device collides and causes broken string, so can not meet the microminiaturized development trend in market.
Summary of the invention
The utility model provides a kind of flat audio amplifier, to solve the volume that prior art exists, can not meet the problem of the requirement of audio amplifier microminiaturization more greatly.
The utility model solves the technical scheme that its technical problem adopts:
A kind of flat audio amplifier, comprise top panel, lower panel, vibrating membrane and every cotton, vibrating membrane is connected between top panel and lower panel, two-layerly every cotton, be positioned over respectively between vibrating membrane and top panel and between vibrating membrane and lower panel, top panel arranges some ventilative sound transmission aperture, between ventilative sound transmission aperture, be spaced some powerful magnetic patch, top panel edge arranges some location and installation hole, lower panel arranges some powerful magnetic patch and a fixture that is used for fixing vibrating membrane, lower panel edge arranges some location and installation hole, diaphragm face is printed ultra-thin copper coil, vibrating membrane edge arranges fixing hole corresponding to the location and installation hole of top panel and lower panel.
Fixture on above-mentioned lower panel comprises interlayer and lower interlayer, and the inner side of upper interlayer and lower interlayer respectively correspondence arranges some grooves and projection.
Powerful magnetic patch on above-mentioned top panel and several powerful magnetic patch N utmost points and the S utmost point on lower panel are spaced.
Above-mentioned vibrating membrane single or double arranges copper coil.
The operation principle of the utility model device is: sound produces by vibrating, after copper coil energising on vibrating membrane, produce magnetic field, with the powerful magnetic patch of top panel and lower panel near making copper coil move, copper coil drives vibrating membrane to move together, during current polarity conversion, vibrating membrane moving direction changes thereupon, during positive current direction, the panel direction that makes progress vibrating membrane moves, during counter current direction, vibrating membrane moves to lower panel direction, it is transaudient that acoustic signal is that high frequency ac signal forms acoustical vibration, and power frequency determines the vibration frequency of copper coil.
Flat audio amplifier of the present utility model has met the microminiaturized market of sound equipment electrical equipment and has done thinner and thinner, the trend that size is more and more less, have advantages of simple in structure, be easy to manufacture, with low cost, practicality and high efficiency and aesthetic in appearance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation in A-A cross section in Fig. 1;
Fig. 3 is the structural representation of the utility model vibrating membrane;
Fig. 4 is the structural representation of the utility model top panel;
Fig. 5 is the structural representation of the utility model lower panel;
Fig. 6 is the structural representation of the utility model lower panel fixture.
1 top panel in figure, 2 lower panels, 3 vibrating membranes, 4 are interlayer, 25 times interlayers, 26 grooves, 27 projections, 31 copper coils, 32 fixing holes on cotton, 11 ventilative sound transmission aperture, 12 powerful magnetic patch, 13 location and installation holes, 21 powerful magnetic patch, 22 fixtures, 23 location and installation holes, 24.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5 and Fig. 6: a kind of flat audio amplifier, comprise top panel 1, lower panel 2, vibrating membrane 3 and every cotton 4, vibrating membrane 3 is connected between top panel 1 and lower panel 2, two-layerly every cotton 4, be positioned over respectively between vibrating membrane 3 and top panel 1 and between vibrating membrane 3 and lower panel 2, top panel 1 arranges some ventilative sound transmission aperture 11, between ventilative sound transmission aperture 11, be spaced some powerful magnetic patch 12, top panel 1 edge arranges some location and installation hole 13, lower panel 2 arranges some powerful magnetic patch 21 and a fixture 22 that is used for fixing vibrating membrane 3, fixture 22 on lower panel 2 comprises interlayer 24 and lower interlayer 25, the inner side of upper interlayer 24 and lower interlayer 25 respectively correspondence arranges some grooves 26 and projection 27, groove 26 and projection 27 can play tensioner effect to the vibrating membrane 3 being plugged in wherein, lower panel 2 edges arrange some location and installation hole 23, vibrating membrane 3 single or double are printed ultra-thin copper coil 31, vibrating membrane 3 edges arrange fixing hole 32 corresponding to the location and installation hole of top panel 1 and lower panel 2.Powerful magnetic patch 12 on top panel 11 and the N utmost point and the S utmost point of the powerful magnetic patch 21 on lower panel 2 are spaced.
The operation principle of the utility model device is: sound produces by vibrating, after copper coil 31 energisings on vibrating membrane 3, produce magnetic field, with the powerful magnetic patch of top panel 1 and lower panel 2 near making copper coil 31 move, copper coil 31 drives vibrating membrane 3 to move together, during current polarity conversion, vibrating membrane moving direction changes thereupon, during positive current direction, vibrating membrane 3 upwards panel 1 direction moves, during counter current direction, vibrating membrane 3 moves to lower panel 2 directions, it is transaudient that acoustic signal is that high frequency ac signal forms acoustical vibration, power frequency determines the vibration frequency of copper coil.
Claims (4)
1. a flat audio amplifier, it is characterized in that comprising top panel, lower panel, vibrating membrane and every cotton, vibrating membrane is connected between top panel and lower panel, two-layerly every cotton, be positioned over respectively between vibrating membrane and top panel and between vibrating membrane and lower panel, top panel arranges some ventilative sound transmission aperture, between ventilative sound transmission aperture, be spaced some powerful magnetic patch, top panel edge arranges some location and installation hole, lower panel arranges some powerful magnetic patch and a fixture that is used for fixing vibrating membrane, lower panel edge arranges some location and installation hole, diaphragm face is printed ultra-thin copper coil, vibrating membrane edge arranges fixing hole corresponding to the location and installation hole of top panel and lower panel.
2. flat audio amplifier according to claim 1, is characterized in that the fixture on lower panel comprises interlayer and lower interlayer, and the inner side of upper interlayer and lower interlayer respectively correspondence arranges some grooves and projection.
3. flat audio amplifier according to claim 1, is characterized in that several powerful magnetic patch on top panel and the powerful magnetic patch N utmost point and the S utmost point on lower panel are spaced.
4. flat audio amplifier according to claim 1, is characterized in that vibrating membrane single or double arranges copper coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425218.7U CN203984646U (en) | 2014-07-31 | 2014-07-31 | Flat audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425218.7U CN203984646U (en) | 2014-07-31 | 2014-07-31 | Flat audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984646U true CN203984646U (en) | 2014-12-03 |
Family
ID=51982061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420425218.7U Active CN203984646U (en) | 2014-07-31 | 2014-07-31 | Flat audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996228A (en) * | 2019-11-25 | 2020-04-10 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
-
2014
- 2014-07-31 CN CN201420425218.7U patent/CN203984646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996228A (en) * | 2019-11-25 | 2020-04-10 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |