CN2469648Y - Speaker made of ultramagnetostriction materials - Google Patents
Speaker made of ultramagnetostriction materials Download PDFInfo
- Publication number
- CN2469648Y CN2469648Y CN 00264745 CN00264745U CN2469648Y CN 2469648 Y CN2469648 Y CN 2469648Y CN 00264745 CN00264745 CN 00264745 CN 00264745 U CN00264745 U CN 00264745U CN 2469648 Y CN2469648 Y CN 2469648Y
- Authority
- CN
- China
- Prior art keywords
- giant magnetostrictive
- magnet exciting
- exciting coil
- rod
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a magnetic striction speaker which belongs to the acoustics appliance field, and includes a speaker bracket, a driving coil, a super magnetic striction rod working point configuration agency which is composed of a heel piece, a ring-shaped magnet steel, a super magnetic striction rod, a cap of heel piece, an output rod, a flexible cushion and a pressing lid, and a radiation panel which connects with the output rod. Compared with the current moving-coil style and flat-style speakers, the utility model has the advantages of simple structure, good environmental suitability, easy assembly, small volume, high power and being able to be cleaned, the utility model is suitable for the upmarket sound box systems and special working environment.
Description
The utility model belongs to the sound equipment instrument field.Relate to a kind of high-fidelity loudspeaker that utilizes giant magnetostrictive material to make transducer.
In present sound system, extensive use be coil-moving speaker, though through years of development and improvement, exist still 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, the cost height.Have some flat panel speakers to come out at these shortcomings, but its tonequality is very poor, and, above-mentioned loud speaker mostly adopts materials such as paper, carbon fiber to penetrate face as the width of cloth, can only use in air dielectric, be difficult to work in other media such as oil, water, environmental suitability is poor.
The purpose of this utility model promptly is for solving the problems referred to above that existing loud speaker exists, a kind of complete novel loud speaker of using the giant magnetostrictive material transducer being provided.
The technical scheme that realizes above-mentioned purpose is: a kind of giant magnetostrictive material loud speaker; include loudspeaker support and magnet exciting coil; in loudspeaker support; by yoke; annular magnetic steel and take-off lever are formed the magnetic bias loop; be equipped with magnet exciting coil in the middle of the annular magnetic steel; be equipped with giant magnetostrictive rod in the coil rack endoporus; the structure that is provided with of this giant magnetostrictive rod working point is: be positioned in the magnet exciting coil skeleton endoporus with the protection of yoke cap and by the supporting of yoke cap at its two ends; giant magnetostrictive rod is penetrated panel by the take-off lever screw with the pad and the width of cloth and is connected; described take-off lever one end is by magnet exciting coil skeleton endoporus positioning support; the other end passes the cushion endoporus; and join vertically with loudspeaker support and annular magnetic steel thus; the loudspeaker support other end is the friction top of band extraction electrode, and giant magnetostrictive rod gives the acquisition of tight power and the sealing of inside loudspeakers structure realizes by tightening this friction top.
Accompanying drawing 1 is a structural representation of the present utility model.
Below in conjunction with description of drawings embodiment: as shown in Figure 1; in loudspeaker support 3; by yoke 4; annular magnetic steel 6 and take-off lever 9 are formed the magnetic bias loop; in the middle of magnet steel 6, be equipped with magnet exciting coil 5; in the skeleton hole of magnet exciting coil 5, be equipped with giant magnetostrictive rod 7; at these rod two ends with yoke cap 8 protection and its supporting is positioned in the skeleton hole of magnet exciting coil 5; the other end passes the endoporus of cushion 10; and join vertically with loudspeaker support 3 and annular magnetic steel by this cushion 10; the other end of support 3 is friction tops 2 that band is introduced electrode 1; when it was tightened, whole inside loudspeakers was sealed and applied pretightning force to giant magnetostrictive rod.
Operation principle of the present utility model is, when tone currents passes through inside loudspeakers magnetic field, magnetic field changes with it, encourage super mangneto to stretch the axial stretching (extensional vibration) that rod 7 produces corresponding frequencies, and in certain changes of magnetic field scope, has linear approximate relationship,, pass to screw 11 and the packing ring 13 and the take-off lever 9 joining width of cloth and penetrate panel 12 and the sound that obtains amplifying this mechanical vibration wave (compressional wave, that is sound wave) by take-off lever 9.
Because adopt technique scheme, the utility model compared with prior art has the following advantages:
1) volume is little, power is big, frequency band is wide, distortion is little;
2) simple installation can be installed in any position;
3) adaptability is strong, can work in air, water, wet goods medium;
4) maintainable good, can carry out clean wiping.
Claims (2)
1; a kind of giant magnetostrictive material loud speaker; include loudspeaker support and magnet exciting coil; it is characterized in that: in the speaker support; by yoke; annular magnetic steel and take-off lever are formed the magnetic bias loop; be equipped with magnet exciting coil in the middle of the annular magnetic steel; coil rack is equipped with giant magnetostrictive rod in the hole; the structure that is provided with of this giant magnetostrictive rod working point is: be positioned in the magnet exciting coil skeleton endoporus with the protection of yoke cap and by the supporting of yoke cap at its two ends; giant magnetostrictive rod is penetrated panel by the take-off lever screw with the pad and the width of cloth and is connected; described take-off lever one end is by magnet exciting coil endoporus positioning support; the other end passes the cushion endoporus; and join vertically with loudspeaker support and annular magnetic steel thus; the loudspeaker support other end is the friction top of band extraction electrode, and giant magnetostrictive rod gives the acquisition of tight power and the sealing of inside loudspeakers structure realizes by tightening this friction top.
By the described loud speaker of claim 1, it is characterized in that 2, the material of described cushion is high-intensity rubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00264745 CN2469648Y (en) | 2000-12-14 | 2000-12-14 | Speaker made of ultramagnetostriction materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00264745 CN2469648Y (en) | 2000-12-14 | 2000-12-14 | Speaker made of ultramagnetostriction materials |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2469648Y true CN2469648Y (en) | 2002-01-02 |
Family
ID=33619301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 00264745 Expired - Fee Related CN2469648Y (en) | 2000-12-14 | 2000-12-14 | Speaker made of ultramagnetostriction materials |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2469648Y (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009082847A1 (en) * | 2007-12-28 | 2009-07-09 | I-Mu Technology Co., Ltd. | A vibration audio driver |
ITTO20090470A1 (en) * | 2009-06-19 | 2010-12-20 | Esarc Hi Tech S R L | SOUND REPRODUCTION DEVICE WITH OVERLAPPED ACOUSTIC ACTUATORS |
US8126169B2 (en) | 2005-04-28 | 2012-02-28 | Foster Electric Company | Super magnetostriction speaker |
CN101534464B (en) * | 2008-03-14 | 2012-09-26 | 索尼株式会社 | Audio output apparatus and vibrator |
CN103260120A (en) * | 2013-04-08 | 2013-08-21 | 杭州电子科技大学 | Tuning fork resonant type ultra-magnetostriction loudspeaker |
-
2000
- 2000-12-14 CN CN 00264745 patent/CN2469648Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8126169B2 (en) | 2005-04-28 | 2012-02-28 | Foster Electric Company | Super magnetostriction speaker |
WO2009082847A1 (en) * | 2007-12-28 | 2009-07-09 | I-Mu Technology Co., Ltd. | A vibration audio driver |
CN101534464B (en) * | 2008-03-14 | 2012-09-26 | 索尼株式会社 | Audio output apparatus and vibrator |
ITTO20090470A1 (en) * | 2009-06-19 | 2010-12-20 | Esarc Hi Tech S R L | SOUND REPRODUCTION DEVICE WITH OVERLAPPED ACOUSTIC ACTUATORS |
WO2010146557A1 (en) * | 2009-06-19 | 2010-12-23 | Esarc Hi-Tech S.R.L. | Device for sound reproduction with stacked acoustic actuators |
CN103260120A (en) * | 2013-04-08 | 2013-08-21 | 杭州电子科技大学 | Tuning fork resonant type ultra-magnetostriction loudspeaker |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |