CN201332499Y - Novel audio frequency converter - Google Patents
Novel audio frequency converter Download PDFInfo
- Publication number
- CN201332499Y CN201332499Y CNU2008202060238U CN200820206023U CN201332499Y CN 201332499 Y CN201332499 Y CN 201332499Y CN U2008202060238 U CNU2008202060238 U CN U2008202060238U CN 200820206023 U CN200820206023 U CN 200820206023U CN 201332499 Y CN201332499 Y CN 201332499Y
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- voice coil
- magnetic energy
- novel audio
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Abstract
The utility model discloses a novel audio frequency converter comprising a base, a magnetic energy binding device, a speech coil, a support chip and a vibration transmission head, wherein the support chip is fixed on the top of the base, the vibration transmission head is fixedly arranged on the support chip, the magnetic energy binding device is fixed on the inner bottom of the base, the speech coil is arranged in a gap between the base and the magnetic energy binding device, and the speech coil is connected with a lead wire. The novel audio frequency converter solves the problems of a cone loudspeaker that the directionality is poor, the sound attenuation is big, the volume is big and the like. The converter has the advantages of a flat loudspeaker that the directionality is good, the volume is small, the output power is big, the sound fidelity is high, and the advantage of portable carrying of an audio frequency converter which takes rare earth magnetostrictive materials as a driving component, simultaneously solves the defects of the audio frequency converter which takes the rare earth magnetostrictive materials as the driving component that the processing difficulty is big, the low frequency is poor and the producing cost is high.
Description
Technical field
The utility model relates to the stereo set field, is specifically related to a kind of novel audio converter.
Background technology
Nowadays most sound equipments all are to adopt traditional awl benzvalene form loud speaker, awl benzvalene form loud speaker mainly is made up of permanent magnet, coil and taper cone, permanent magnet produces a magnetic field by yoke in the annulus gap of magnetic circuit, the voice coil loudspeaker voice coil that links to each other with the taper cone inserts in the annulus gap, permanent magnet is surrounded by the yoke of outside, thereby can exempt from the interference of extraneous stray magnetic field, also can reduce permanent magnet field influence to external world conversely.When sound with the form of electric current during by magnetic field coil just can produce the vibrations of different frequency because of the variation of electric current power, and then drive cone and send different frequency and strong and weak sound.But awl benzvalene form loud speaker has a lot of deficiencies: directive property is very poor, and (you must stand in the front of audio amplifier, just can hear perfectly sound; The part of high pitch particularly, if you stand in the side of audio amplifier, some background or accompaniment sound just can't hear), sound attenuating big (when you lean on to such an extent that can find that too closely sound is very big, and distance is when far away slightly, and you think that again sound is little many), volume be big etc.
The eighties latter stage, the researcher of U.K. Ministry of Defence once attempts using composite plane material sealing engine in order to study the method that reduces the combat helicopter engine noise, and the electricity consumption noise cancellation technique comes noise reduction then.But not only noise does not reduce curiously, is that these compound slab materials are generally sounded because of vibration just like loud speaker on the contrary.So the researcher has expected utilizing this compound slab material to make loud speaker, and begins to carry out the development of this respect.In September, 1996, NXT company announced to set up, and was devoted to the NXT panel speaker is dropped into the research of practical application area such as commerce, specialty and family expenses.Flat panel speaker mainly contains two big systems in the world now: a kind of is the NXT system of Britain, and another kind is an Australian panel speaker system.Panel speaker has advantages such as directive property is good, sound attenuating is less, acoustic fidelity is high, profile is ultra-thin.Occurred new progress having been arranged in many aspects again in the last few years again, shown the portable of it especially with the audio converter of Giant Magnetostrictive Materials Containing RE as driving element.Because the Giant Magnetostrictive Materials Containing RE difficulty of processing is big, cost is high, low frequency performance difference and especially along with the increasing cost of power is double, so on certain degree, also limited its development.
Summary of the invention
The utility model is in order to overcome the deficiency that above prior art exists, and a kind of acoustic fidelity height, volume is little, portable, production cost is low novel audio converter are provided.
The purpose of this utility model realizes by following technical scheme: this novel audio converter, it is characterized in that: comprise base, poly-magnetic energy device, voice coil loudspeaker voice coil, sheet and shaking head, prop up sheet and be fixed at base top, shaking head is fixed at and props up above the sheet, poly-magnetic energy device is fixed on the base inner bottom part, voice coil loudspeaker voice coil is installed in the gap of base and poly-magnetic energy device, and voice coil loudspeaker voice coil connects lead-in wire.
Described shaking head is fixedlyed connected with a sheet by screw.
Described poly-magnetic energy device comprises lower magnet, yoke and the last magnet that sets gradually.
Described sheet fixedlyed connected with base by four screws.
Described shaking head outer wrapping one deck rubber cushion.
Described sheet is cantilever shape, made by the high resiliency metallic composite.
Be provided with a circle soft rubber pad between described sheet and the base.
The utility model has following advantage with respect to prior art: this novel audio converter, problems such as the awl benzvalene form directivity of loudspeaker is poor, sound attenuating is big, volume is big have been solved, it not only has the advantage that panel speaker directive property is good, volume is little, power output is big, acoustic fidelity is high, also possessed with the portable advantage of Giant Magnetostrictive Materials Containing RE, also solved, low frequency differences big as the audio converter difficulty of processing of driving element and the high shortcoming of production cost simultaneously with Giant Magnetostrictive Materials Containing RE as the audio converter of driving element.
Description of drawings
Fig. 1 is the vertical view of a kind of novel audio converter of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
A kind of novel audio converter as depicted in figs. 1 and 2, comprise base 1, poly-magnetic energy device, voice coil loudspeaker voice coil 6, sheet 7 and shaking head 10, prop up sheet 7 and be fixed at base 1 top, propping up sheet 7 fixedlys connected with base 1 by four screws 11, shaking head 10 is fixed at and props up above the sheet 7, and shaking head 10 is fixedlyed connected with a sheet 7 by screw 9, and poly-magnetic energy device is fixed on base 1 inner bottom part, voice coil loudspeaker voice coil 6 is installed in the gap of base 1 and poly-magnetic energy device, and voice coil loudspeaker voice coil connects lead-in wire.Poly-magnetic energy device comprises lower magnet 2, yoke 3 and the last magnet 4 that sets gradually.Shaking head 10 outer wrapping one deck rubber cushions 8.Propping up sheet 7 is cantilever shape, is made by the high resiliency metallic composite.Prop up and be provided with a circle soft rubber pad 5 between sheet 7 and the base 1.
Above-mentioned embodiment is a preferred embodiment of the present utility model; can not limit claim of the present utility model; other any change that does not deviate from the technical solution of the utility model and made or other equivalent substitute mode are included within the protection range of the present utility model.
Claims (7)
1, novel audio converter, it is characterized in that: comprise base, poly-magnetic energy device, voice coil loudspeaker voice coil, sheet and shaking head, prop up sheet and be fixed at base top, shaking head is fixed at and props up above the sheet, poly-magnetic energy device is fixed on the base inner bottom part, voice coil loudspeaker voice coil is installed in the gap of base and poly-magnetic energy device, and voice coil loudspeaker voice coil connects lead-in wire.
2, novel audio converter according to claim 1 is characterized in that: described shaking head is fixedlyed connected with a sheet by screw.
3, novel audio converter according to claim 1 is characterized in that: described poly-magnetic energy device comprises lower magnet, yoke and the last magnet that sets gradually.
4, novel audio converter according to claim 1 is characterized in that: described sheet fixedlyed connected with base by four screws.
5, novel audio converter according to claim 1 is characterized in that: described shaking head outer wrapping one deck rubber cushion.
6, novel audio converter according to claim 1 is characterized in that: described sheet is cantilever shape, made by the high resiliency metallic composite.
7, novel audio converter according to claim 1 is characterized in that: be provided with a circle soft rubber pad between described sheet and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202060238U CN201332499Y (en) | 2008-12-25 | 2008-12-25 | Novel audio frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202060238U CN201332499Y (en) | 2008-12-25 | 2008-12-25 | Novel audio frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332499Y true CN201332499Y (en) | 2009-10-21 |
Family
ID=41225884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202060238U Ceased CN201332499Y (en) | 2008-12-25 | 2008-12-25 | Novel audio frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201332499Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898343A (en) * | 2017-01-23 | 2017-06-27 | 南京大学 | The device that can realize low frequency directivity manipulation for propagating 0 rank plane sound wave |
| WO2022160685A1 (en) * | 2021-01-29 | 2022-08-04 | 歌尔股份有限公司 | Electronic device and terminal |
-
2008
- 2008-12-25 CN CNU2008202060238U patent/CN201332499Y/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898343A (en) * | 2017-01-23 | 2017-06-27 | 南京大学 | The device that can realize low frequency directivity manipulation for propagating 0 rank plane sound wave |
| CN106898343B (en) * | 2017-01-23 | 2020-12-15 | 南京大学 | Device capable of realizing low-frequency directional control for transmitting 0-order plane sound wave |
| WO2022160685A1 (en) * | 2021-01-29 | 2022-08-04 | 歌尔股份有限公司 | Electronic device and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20100803 Decision number of declaring invalidation: 15160 Granted publication date: 20091021 |