CN201134928Y - Vibrating type audio driver - Google Patents
Vibrating type audio driver Download PDFInfo
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- CN201134928Y CN201134928Y CNU2007203062749U CN200720306274U CN201134928Y CN 201134928 Y CN201134928 Y CN 201134928Y CN U2007203062749 U CNU2007203062749 U CN U2007203062749U CN 200720306274 U CN200720306274 U CN 200720306274U CN 201134928 Y CN201134928 Y CN 201134928Y
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- vibration
- audio driver
- oscillating mode
- cylindrical cavity
- mode audio
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Abstract
The utility model relates to a vibration type audio frequency driver, which facilities audio frequency signals to generate the alternating magnetic field in a coil through an AV power amplifier, enables rare earth-iron giant magnetostrictive material in the coil to generate the extension deformation under the effect of the magnetic field, thereby transforming the audio frequency signals into vibration signals, and reducing the vibration signals into the audio frequency signals through the pressure of a weighing body on the top portion by means of being attached on any hard plane to reach the effect of driving the hard plane to make a sound. The vibration type audio frequency driver comprises a weighing body which is made from magnetic conductive material, a vibration component, a vibration cover, an elastic cushion and a locking end cap. The vibration type audio frequency driver of the utility model has no directivity of audio frequency, can thread through the hard plane, and has large output power, wide frequency response range, small volume and convenient carrying, which can be used as an external device for audio frequency devices.
Description
Technical field
The utility model relates to a kind of New-type loudspeaker technology in the stereo set field, thereby the flexible feature of particularly utilizing rare earth ultra-magnetostriction material to produce under the action of a magnetic field changes into audio signal in the device of mechanical oscillation.
Background technology
We know, in present sound system, extensive use be coil-moving speaker, though through years of development and improvement, still exist that frequency band is narrow, phase distortion and cut apart problems such as vibration and be difficult to overcome, remedy although can be combined in to a certain extent by sound box system and frequency division, volume is big, cost is high.And, above-mentioned loud speaker mostly adopts materials such as paper, carbon fiber as radiating surface, can only in air dielectric, use, be difficult in other media such as water, work, environmental suitability is poor, above-mentioned loud speaker all has this defective of directive property simultaneously, is difficult to accomplish the equilibrium of sound field, and this becomes the technical bottleneck that the electroacoustic field further develops.
At the initial stage seventies, U.S. Iowa university is by to the research and development of low frequency sonar transducer, found the alloy that formed by rare earth Th-Dy and Fe externally under the action of a magnetic field, to produce huge strain (U.S. Pat No.4308474).Utilize this material externally to produce the principle of strain down in magnetic field, can make driver, locator, transducer etc., and can be used for all-bottom sound transducer/driver, be i.e. low frequency sounding driver.The latter stage eighties, by the U.S. ETREMA company Tb-Dy-Fe alloy is put into production, launched the application study of this material thus.MACHINE DESIGN, AUGUST 8,1994, V66, N15, P.18 magazine has been announced by U.S. ETREMA company and has been adopted the driver of rare earth ultra-magnetostriction material as driving element.This driver is by rare earth ultra-magnetostriction material rod, drive coil, tubular permanent magnets bias magnetic field, pretightening butterfly spring, positive T type motion export bar, back compress end cap and form, constitute the closed magnetic circuit ring by forward and backward magnetic conduction sheet and tubular permanent magnets, adopt the rear portion to compress end cap and regulate the prestressed size of strain gauge material.
Chinese patent ZL00207417.6 discloses a kind of magnetostric, i.e. driver.This driver is mainly used in vibration or sounding.The driver core component is a rare earth ultra-magnetostriction material, its basic structure and MACHINE DESIGN, AUGUST 81994, V66, N15, P.18 disclosed structural similarity, what adopt is positive T type motion output guide rod, and preceding gland is regulated prestressed size, but employing is the structure that threaded rod compresses gland, owing to do not adopt the closed magnetic circuit design, have leakage field and drive inefficient problem.
Chinese patent ZL00264745.1 discloses a kind of giant magnetostrictive material loud speaker, it is made up of above-mentioned similar rare earth ultra-magnetostriction material driver and the sounding radiant panel that is installed in positive T type rod end, what the driver in this patent adopted is and MACHINE DESIGN, AUGUST 8 1994, V66, N15, the then structure of the disclosed driver all fours of .18, unique different be not adopt pretightening butterfly spring, but adopt high-strength rubber.There is the problem of leakage field equally in this structure.
Chinese patent ZL01208463.8 discloses a kind of magnetostriction high-fidelity panel speaker, and the driver and the pronunciation board that drive by the motion core component that comprises rare earth ultra-magnetostriction material, by this material are formed.This driver has the motion enlarger, can improve the amplitude of motion.This driver does not have closed magnetic circuit or magnet shielding structure, has the problem of leakage field.
Chinese patent application 92109581.3 discloses a kind of drive system of sound-producing device, and its core driving element is a rare earth ultra-magnetostriction material, is drum type.Adopt two beam pre-pressing structures of pressing, stack up by more than one driver element, complex structure, packaging technology is loaded down with trivial details, is not suitable for suitability for industrialized production.
Chinese patent ZL200620108620.8 discloses a kind of attached audio energy converter, by coil, coil brace, rare earth ultra-magnetostriction material is that core driving element, permanent magnetism sheet and top cap are combined into whole location, structure and ZL00207417.6 are similar, have replaced pretightening butterfly spring with elastic base.Simultaneously plate is put in the miniature confession of numeral, control switch is integrated in the whole machine body.Elastic base plays simultaneously rare earth ultra-magnetostriction material is applied prestressed effect, thereby but owing to causing vibrating power output too greatly, base area disperses to lower efficiency, simultaneously owing to integrate problems such as can producing self-interference noise and heat radiation difficulty for discharge road and body.
The utility model content
The utility model provides a kind of novel oscillating mode audio driver, has solved in the above-mentioned prior art because of not having closed magnetic circuit or magnet shielding structure to have problem, the inefficient problem of driving of leakage field and owing to integrating problems such as meeting generation self-interference noise and heat radiation difficulty for discharge road and body.
In order to overcome above-mentioned the problems of the prior art, the utility model provides a kind of oscillating mode audio driver, and the vibration that it comprises balance weight body, vibrating mass, be provided with vibration lid, cushion and locking end cap spreads out of device.The cylindrical substantially main body of described balance weight body by making such as the permeability magnetic material of iron etc., forms cylindrical cavity longitudinally along the vertical central axis line of cylinder-shaped body; Vibrating mass is installed in the cylindrical cavity of balance weight body, described vibrating mass comprises the magnetostrictive material post, described magnetostrictive material post can be made by rare earth ultra-magnetostriction material, be arranged on magnetostrictive material post two ends in the vertical and form the permanent magnet of fixed magnetic field, described permanent magnet can be made by Nd-Fe-B magnet steel, coil brace around the magnetostrictive material post, be wrapped on the coil brace and import the coil that audio electrical signal forms alternating magnetic field, described vibrating mass longitudinally vibrates at described cylindrical cavity down in working order, and described coil links to each other with the audio signal source of outside; Vibration spreads out of device and comprises vibration lid and the locking end cap of being made by non-magnet material, described vibration lid cooperates the oscillation space that limits described vibrating mass with described cylindrical cavity, and synchronous vibration by described vibrating mass drive, the locking end cap will vibrate the lid supporting and be engaged on the described balance weight body, described vibration lid has the vibration end face that can contact with the outer surface of hard, and the transfer of vibration that vibrating mass is produced arrives described outer surface.
The cylindrical cavity of described balance weight body can comprise first cylindrical cavity and second cylindrical cavity of concentric, vibrating mass is contained in first cylindrical cavity and second cylindrical cavity, the excircle of described vibration lid is engaged in and makes the relative motion therein of vibration lid in described second cylindrical cavity, the locking end cap that described vibration spreads out of device is connected with described balance weight body, the center of locking end cap has through hole, and described vibration lid passes through hole from outwards outstanding its vibration end face of described locking end cap.Horizontal coil connectors leadout hole also is set in described balance weight body, the joint of described coil links to each other with external source of audio signals by this leadout hole, this leadout hole is communicated with first cylindrical cavity, have locking screw on the cylindrical outer surface of described balance weight body one end, be useful on the assembling screw hole of assembling on the top of balance weight body.Because balance weight body is made by the permeability magnetic material with good magnetic property, the leakage field not so can realize armoured magnetic field, and therefore strengthened magnetic flux.
Described vibration lid can have the three cylindrical shape inner chamber with first cylindrical cavity and the second cylindrical cavity concentric, and described three cylindrical shape inner chamber forms the oscillation space that limits described vibrating mass with first cylindrical cavity and second cylindrical cavity.
Described vibration lid can also comprise flange portion; between flange portion and described locking end cap, cushion is set; described cushion has cushioning effect; can protect rare earth material not to be subjected to the damage of rigid pressure, torsion fully, and when vibrating mass shrinks because of magnetostrictive material, provide elastic-restoring force for the vibration lid.The vibration lid is provided with cushion pad from the outwards outstanding vibration end face of described locking end cap.
The two ends of described vibrating mass can be respectively arranged with first locator protrusions and second locator protrusions, described first locator protrusions cooperates with first location hole of the top center that is formed on balance weight body, described second locator protrusions be formed on second location hole of described vibration lid and cooperate towards the end face center of vibration inner chamber, vibrate thereby make described vibrating mass remain on the axis that vibrates inner chamber.In described first locator protrusions and second locator protrusions each comprises beveled tip and column part, and the bottom surface of column part is provided with counterbore, and an end of the permanent magnet at vibrating mass two ends inserts described counterbore and adhesion is fixed in the described counterbore.
The magnetostrictive material post of described vibrating mass can comprise two sections, comprises a permanent magnet between described two sections magnetostrictive material posts, and described permanent magnet is made by Nd-Fe-B magnet steel, and described magnetostrictive material post is made by rare earth ultra-magnetostriction material.By a large amount of evidences the structure that is arranged alternately of this three permanent magnets and two sections magnetostrictive material can embody the magnetic variation characteristic of rare earth ultra-magnetostriction material to greatest extent.
Described locking end cap can be realized by the engagement of screw thread on the described locking end cap and the locking screw on the described balance weight body with being connected of described balance weight body, center at described locking end cap has through hole, and it is outwards outstanding from described locking end cap that described vibration lid passes through hole.
In addition, described first locator protrusions, second locator protrusions, vibration lid and locking end cap can be each made of aluminum.
When having avoided assembling, the structure that above-mentioned vibration spreads out of device make rare earth ultra-magnetostriction material impaired because the rigidity contact causes described vibrating mass to twist simultaneously in the screw-threaded coupling process.It is a little more concentrated that this structure of while spreads out of vibration, thereby avoided the large tracts of land vibration of whole bottom to promote vibration efficiency.
The middle part of described coil brace is cylindrical, the support two ends have outwards outstanding flange, the central axis thorough coil support of one through hole coil support along the line, be wound with one or more layers coil on the whole length of the outer surface in the middle part of coil brace, described coil brace is holding the permanent magnet between two sections magnetostrictive material posts and the two sections magnetostrictive material posts, one end of the permanent magnet at vibrating mass two ends stretches into coil brace, and coil brace 7 is made by high-temperature insulation material.Coil brace in the utility model has solved the production efficiency problem in the commercial process, if be exactly to have avoided directly that winding around must be bonding with glue in advance on described vibrating mass in particular and since the bonding plane thin and thick inconsistent cause easily entire length can't accurate control and in the process of winding around because lateral force causes the impaired defective of rare earth ultra-magnetostriction material easily.
In a kind of optimal way of the present utility model, adopted a kind of preferred plane adhering mode, described oscillating mode audio driver can be adsorbed on almost any hard mirror plane by the sucker that is arranged on the vibration lid bottom, described sucker comprises sucker take-up, sucker pressure cover and sucker bottom vacuum rubber pad, degree of tightness by take-up is regulated and can be reached sucker bottom vacuum rubber pad and be adsorbed the surface and be in and loosen or adsorbed state, can reach to allow the effect of adsorbed surperficial sounding under adsorbed state.Simultaneously, the absorption affinity of sucker has replaced the pre-pressing pressure of part balance weight body, therefore can fully dwindle balance weight body.
The utility model cooperates the external AV power amplifier to use, and contacts use with the solid rigid planar medium.
This oscillating mode audio driver can combine with the large-sized solid rigid surface and form the vibration sounding system, but described large-sized solid rigid surface is including, but not limited to indoor desktop, curtain wall, door, ceiling, floor, outdoor advertising board, exhibition sales counter, car, ship body etc.That the material of solid rigid planar medium is selected from is wooden, any one or its combination in the metal, glass, duroplasts, pottery, stone material, artificial compounded material.
Oscillating mode audio driver of the present utility model produces alternating magnetic field with audio signal by the AV power amplifier in coil, make the rare earth ultra-magnetostriction material in the coil under the action of a magnetic field, produce telescopic shape change, thereby audio signal is changed into vibration signal, and the balance weight body pressure by the top, by being attached to any rigid planar vibration signal is reduced into audio signal, reaches the effect that the driving rigid planar is sounded.Described oscillating mode audio driver comprises that balance weight body, vibrating mass and the vibration of being made by permeability magnetic material spread out of device.The audio frequency non-directive of oscillating mode audio driver of the present utility model, can penetrate rigid planar, power output is big, Hz-KHz is wide, volume is little, be easy to carry, and can be used as the external equipment of audio frequency apparatus.
Description of drawings
Characteristics of the present utility model, advantage will be clearer by the explanation of being done in conjunction with the following drawings, wherein:
Fig. 1 is the overall assembling decomposing schematic representation that illustrates according to the oscillating mode audio driver of the utility model first embodiment;
Fig. 2 is the cutaway view that illustrates according to the oscillating mode audio driver of the utility model first embodiment;
Fig. 3 is the cutaway view that illustrates according to the oscillating mode audio driver with sucker of the utility model second embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is the overall assembling decomposing schematic representation that illustrates according to the oscillating mode audio driver of the utility model first embodiment, and its vibration that shows balance weight body 1, vibrating mass 19, involving vibrations lid 9, cushion 10 and locking end cap 11 spreads out of device.
Fig. 2 is the cutaway view that illustrates according to the oscillating mode audio driver of the utility model first embodiment, and wherein the oscillating mode audio driver comprises balance weight body 1, vibrating mass 19, has that vibration cover 9, cushion 10 and the vibration of locking end cap 11 spread out of device.
The cylindrical substantially main body of described balance weight body 1, by making such as the permeability magnetic material of iron etc., form first cylindrical cavity 16 and second cylindrical cavity 17 of concentric along the vertical central axis line of cylinder-shaped body, first cylindrical cavity and second cylindrical cavity can have identical or different diameter, and they form cylindrical cavity jointly.Horizontal coil connectors leadout hole 8 also is set in described balance weight body, the joint of described coil 6 links to each other with external source of audio signals by this leadout hole, this leadout hole is communicated with first cylindrical cavity, have locking screw on the cylindrical outer surface of described balance weight body one end, be useful on the assembling screw hole 2 of assembling on the top of balance weight body.
Described vibrating mass 19 is contained in first cylindrical cavity and second cylindrical cavity, it comprises magnetostrictive material post 5, be arranged on magnetostrictive material post two ends in the vertical and form the permanent magnet 4 of fixed magnetic field, coil brace 7 around the magnetostrictive material post, be wrapped on the support and import the coil 6 that audio electrical signal forms alternating magnetic field, described vibrating mass 19 longitudinally vibrates at described cylindrical cavity down in working order, and described coil links to each other with the audio signal source of outside.
Described vibration spreads out of device and comprises vibration lid 9 and the locking end cap of being made by non-magnet material 11, described vibration lid cooperates the oscillation space that limits described vibrating mass with described cylindrical cavity, and synchronous vibration by described vibrating mass drive, locking end cap 11 will vibrate and cover 9 and support and to be engaged on the described balance weight body 1, described vibration lid has the vibration end face that can contact with the outer surface of hard, and the transfer of vibration that vibrating mass is produced arrives described outer surface.
The excircle of described vibration lid 9 is engaged in and makes the relative motion therein of vibration lid in described second cylindrical cavity, the locking end cap that described vibration spreads out of device is connected with described balance weight body, the center of locking end cap has through hole, and described vibration lid passes through hole from outwards outstanding its vibration end face of described locking end cap.Described vibration lid can also have the three cylindrical shape inner chamber 18 with first cylindrical cavity and the second cylindrical cavity concentric, and described three cylindrical shape inner chamber 18, first cylindrical cavity 16 and second cylindrical cavity 17 form the oscillation space that limits described vibrating mass together.
Described vibration lid can also comprise flange portion, between flange portion and described locking end cap cushion 10 is set.In vibration processes, cushion 10 covers for vibration elastic-restoring force is provided when vibrating mass shrinks.In addition, cushion 10 has cushioning effect, can protect rare earth material not to be subjected to the damage of rigid pressure, torsion fully.
Vibration lid can be provided with cushion pad 12 from the outwards outstanding vibration end face of described locking end cap, be used for the contact between buffering vibration broken ends of fractured bone face and the hard surface that is contacted.
The two ends of described vibrating mass 19 can be respectively arranged with first locator protrusions 20 and second locator protrusions 21, described first locator protrusions cooperates with first location hole 22 of the top center that is formed on balance weight body 1, described second locator protrusions be formed on second location hole 23 of described vibration lid and cooperate towards the end face center of vibration inner chamber, thereby making described vibrating mass remain on the axis that vibrates inner chamber vibrates, in described first locator protrusions and second locator protrusions each comprises beveled tip and column part, the bottom surface of column part is provided with the counterbore (not shown), and an end of the permanent magnet at vibrating mass two ends inserts described counterbore and adhesion is fixed in the described counterbore.
The magnetostrictive material post 5 of described vibrating mass can be two sections, between two sections magnetostrictive material posts, comprise a permanent magnet 4, described magnetostrictive material post is made by rare earth ultra-magnetostriction material, described magnetostrictive material post also can be one section, two permanent magnets 4 are arranged on magnetostrictive material post two ends in the vertical and form fixed magnetic field, and described permanent magnet can be made by Nd-Fe-B magnet steel.
The middle part of described coil brace 7 is cylindrical, the support two ends have outwards outstanding flange, the central axis thorough coil support of one through hole coil support along the line, be wound with one or more layers coil 6 on the whole length of the outer surface in the middle part of coil brace, the through hole of described coil brace is holding the permanent magnet between two sections magnetostrictive material posts and the two sections magnetostrictive material posts, and an end of the permanent magnet at vibrating mass two ends stretches into coil brace.Coil brace is made by high-temperature insulation material.Thereby the coil that links to each other with the audio signal source of outside is wrapped in and imports audio electrical signal on the coil brace to form alternating magnetic field, and described vibrating mass longitudinally vibrates at described cylindrical cavity down in working order.
In addition, described first locator protrusions 20, second locator protrusions 21, vibration covers 9 and lock end cap 11 and can be made by the non-magnet material of metal one class, for example aluminium.
Fig. 3 is the cutaway view that illustrates according to the oscillating mode audio driver with sucker of the utility model second embodiment.On the basis of Fig. 2 embodiment, present embodiment has increased a kind of plane adhering mode, described oscillating mode audio driver can be adsorbed on almost any hard mirror plane by the sucker that is arranged on the vibration lid bottom, described sucker comprises sucker take-up 13, sucker pressure cover 14 and sucker bottom vacuum rubber pad 15, degree of tightness by take-up is regulated and can be reached sucker bottom vacuum rubber pad and be adsorbed the surface and be in and loosen or adsorbed state, can reach to allow the effect of adsorbed surperficial sounding under adsorbed state.Simultaneously, the absorption affinity of sucker has replaced the pre-pressing pressure of part balance weight body, therefore can fully dwindle balance weight body.
Although it is described with reference to embodiment of the present utility model, but any upside, downside referred to, top, middle part, bottom or top and bottom and level and vertically or any other narrate the term of another parts with respect to parts, except that specifying, its purpose all is the utility model for convenience of description, and is not intended the utility model or its component limitations in any one position or spatial orientation.All sizes of parts in the accompanying drawing can with possible design and planned making of embodiment is used for changing, and do not deviate from scope of the present utility model.
Those skilled in the art will appreciate that under the situation that does not deviate from the utility model scope, can make various changes, and can substitute its element with equivalent to the utility model.In addition, can make a lot of distortion to instruction of the present utility model and adapt to certain conditions or material, and not deviate from essential scope of the present utility model.Therefore, the utility model is not limited to the specific embodiment that is disclosed as implementing optimal mode of the present utility model, and the utility model should comprise all embodiment that fall into the claims scope.
Claims (17)
1. an oscillating mode audio driver is characterized in that, comprising:
Balance weight body, it is made by permeability magnetic material, and described balance weight body has the cylindrical cavity of longitudinal extension;
Vibrating mass, it is installed in the cylindrical cavity of balance weight body, described vibrating mass comprises the magnetostrictive material post, be arranged on magnetostrictive material post two ends in the vertical and form the permanent magnet of fixed magnetic field, coil brace around the magnetostrictive material post, be wrapped on the support and import the coil that audio electrical signal forms alternating magnetic field, described vibrating mass longitudinally vibrates at described cylindrical cavity down in working order, described coil link to each other with the audio signal source of outside;
Vibration spreads out of device, it comprises vibration lid and the locking end cap of being made by non-magnet material, described vibration lid cooperates the oscillation space that limits described vibrating mass with described cylindrical cavity, and synchronous vibration by described vibrating mass drive, the locking end cap will vibrate the lid supporting and be engaged on the described balance weight body, described vibration lid has the vibration end face that can contact with the outer surface of hard, and the transfer of vibration that vibrating mass is produced arrives described outer surface.
2. oscillating mode audio driver as claimed in claim 1, it is characterized in that, the cylindrical cavity of described balance weight body comprises first cylindrical cavity and second cylindrical cavity of concentric, the excircle of described vibration lid is engaged in and makes the relative motion therein of vibration lid in described second cylindrical cavity, the locking end cap that described vibration spreads out of device is connected with described balance weight body, the center of locking end cap has through hole, and described vibration lid passes through hole from outwards outstanding its vibration end face of described locking end cap.
3. oscillating mode audio driver as claimed in claim 2, it is characterized in that, described vibration lid has the three cylindrical shape inner chamber with first cylindrical cavity and the second cylindrical cavity concentric, and described three cylindrical shape inner chamber forms the oscillation space that limits described vibrating mass with first cylindrical cavity and second cylindrical cavity.
3. oscillating mode audio driver as claimed in claim 2 is characterized in that, described vibration lid comprises and between flange portion and described locking end cap cushion is set by flange portion.
4. oscillating mode audio driver as claimed in claim 2, it is characterized in that, the two ends of described vibrating mass are respectively arranged with first locator protrusions and second locator protrusions, described first locator protrusions cooperates with first location hole of the top center that is formed on balance weight body, described second locator protrusions be formed on second location hole of described vibration lid and cooperate towards the end face center of vibration inner chamber, vibrate thereby make described vibrating mass remain on the axis that vibrates inner chamber.
5. oscillating mode audio driver as claimed in claim 4 is characterized in that, described first locator protrusions and second locator protrusions comprise beveled tip.
6. oscillating mode audio driver as claimed in claim 1 is characterized in that, the vibration end face of described vibration lid is provided with cushion pad from the outwards outstanding end face of described locking end cap.
7. oscillating mode audio driver as claimed in claim 1 is characterized in that, the magnetostrictive material post of described vibrating mass comprises two sections, also comprises a permanent magnet between described two sections magnetostrictive material posts.
8. oscillating mode audio driver as claimed in claim 1, it is characterized in that, the horizontal coil connectors leadout hole that communicates with cylindrical cavity is set in described balance weight body, and the joint of described coil links to each other with external source of audio signals by this coil connectors leadout hole.
9. oscillating mode audio driver as claimed in claim 1 is characterized in that, described locking end cap and described balance weight body are by being threaded.
10. oscillating mode audio driver as claimed in claim 1 is characterized in that, also comprises being arranged on the vibration lid sucker from the outwards outstanding end face of described locking end cap, and described oscillating mode audio driver is adsorbed on the hard surface.
11. oscillating mode audio driver as claimed in claim 10, it is characterized in that, described sucker comprises sucker take-up, sucker pressure cover and sucker bottom vacuum rubber pad, regulates by the degree of tightness of sucker take-up to reach sucker bottom vacuum rubber pad and be adsorbed the surface and be in and loosen or adsorbed state.
12. oscillating mode audio driver as claimed in claim 1 is characterized in that coil brace is made by high-temperature insulation material.
13., it is characterized in that described permanent magnet is made by Nd-Fe-B magnet steel as one of them described oscillating mode audio driver of claim 1 to 12.
14., it is characterized in that the permeability magnetic material of described balance weight body is an iron as one of them described oscillating mode audio driver of claim 1 to 12.
15., it is characterized in that described magnetostrictive material post is made by rare earth ultra-magnetostriction material as one of them described oscillating mode audio driver of claim 1 to 12.
16., it is characterized in that described first locator protrusions, second locator protrusions, vibration lid and locking end cap are each made of aluminum as one of them described oscillating mode audio driver of claim 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203062749U CN201134928Y (en) | 2007-12-28 | 2007-12-28 | Vibrating type audio driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203062749U CN201134928Y (en) | 2007-12-28 | 2007-12-28 | Vibrating type audio driver |
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| Publication Number | Publication Date |
|---|---|
| CN201134928Y true CN201134928Y (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203062749U Expired - Fee Related CN201134928Y (en) | 2007-12-28 | 2007-12-28 | Vibrating type audio driver |
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| CN (1) | CN201134928Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893706B (en) * | 2009-05-20 | 2013-08-21 | 陈�峰 | High-precision magnetic field force balancing capacitance type unidirectional and bidirectional passive sonar sensor |
| CN106592119A (en) * | 2016-12-30 | 2017-04-26 | 申洲针织（安徽）有限公司 | Automatic brand-picking device |
| CN107127134A (en) * | 2017-05-17 | 2017-09-05 | 西安思坦测控技术有限公司 | Magnetostrictive transducer and the high-power ultralow frequency sound source for underwater emission |
| CN109862495A (en) * | 2019-04-11 | 2019-06-07 | 贵州电网有限责任公司 | A kind of communication system of power grids equipment magnetostriction loudspeaker |
| WO2022193934A1 (en) * | 2021-03-18 | 2022-09-22 | 海信视像科技股份有限公司 | Display device, exciter, and audio signal playback method |
-
2007
- 2007-12-28 CN CNU2007203062749U patent/CN201134928Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893706B (en) * | 2009-05-20 | 2013-08-21 | 陈�峰 | High-precision magnetic field force balancing capacitance type unidirectional and bidirectional passive sonar sensor |
| CN106592119A (en) * | 2016-12-30 | 2017-04-26 | 申洲针织（安徽）有限公司 | Automatic brand-picking device |
| CN106592119B (en) * | 2016-12-30 | 2019-03-29 | 申洲针织（安徽）有限公司 | It is a kind of to take device for mark automatically |
| CN107127134A (en) * | 2017-05-17 | 2017-09-05 | 西安思坦测控技术有限公司 | Magnetostrictive transducer and the high-power ultralow frequency sound source for underwater emission |
| CN109862495A (en) * | 2019-04-11 | 2019-06-07 | 贵州电网有限责任公司 | A kind of communication system of power grids equipment magnetostriction loudspeaker |
| WO2022193934A1 (en) * | 2021-03-18 | 2022-09-22 | 海信视像科技股份有限公司 | Display device, exciter, and audio signal playback method |
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