CN2469648Y - Speaker made of ultramagnetostriction materials - Google Patents

Speaker made of ultramagnetostriction materials Download PDF

Info

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
Application number
CN 00264745
Other languages
Chinese (zh)
Inventor
张茂才
郑立臣
高学绪
史振华
周寿增
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 00264745 priority Critical patent/CN2469648Y/en
Application granted granted Critical
Publication of CN2469648Y publication Critical patent/CN2469648Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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 giant magnetostrictive material loud speaker
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.
CN 00264745 2000-12-14 2000-12-14 Speaker made of ultramagnetostriction materials Expired - Fee Related CN2469648Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN201813522U (en) Push-pull type loudspeaker
CN2469648Y (en) Speaker made of ultramagnetostriction materials
GB2357215A (en) Resonant panel loudspeakers
CN101188874B (en) Magnetism driven telescopic driver
CN201536416U (en) Low pitch plane horn
CN207884874U (en) Waterproof speaker
CN105763985A (en) Plasma loudspeaker earphone
CN101931843A (en) Voice frequency vibrating device
CN1111896A (en) Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker
CN201491247U (en) Audio-frequency vibration device
CN106507257A (en) Magnetic film oscillating flat plate speaker and its assembly method
CN203181215U (en) Resonant giant magnetostrictive loudspeaker
CN203968372U (en) A kind of high pitch loudspeaker that phase plug is set
CN219227807U (en) Back-to-back loudspeaker
CN2148450Y (en) Excited-field plane loudspeaker
CN206226727U (en) A kind of loudspeaker assembles plate rail
CN202750224U (en) Loudspeaker
CN203313389U (en) Composite diaphragm horn without cone
CN213960308U (en) Seven magnetic circuit large amplitude loudspeaker
CN204721600U (en) Loud speaker
CN212969955U (en) Ultra-thin full-frequency sound assembly
CN2482302Y (en) Inverse phase loudspeaker box with sealed loudspeaker box structure
CN212696171U (en) Portable movable loudspeaker
CN216313416U (en) Full-band sound basin for loudspeaker
CN218550173U (en) Loudspeaker

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