CN2935690Y - Adhesion-type audio transducer - Google Patents
Adhesion-type audio transducer Download PDFInfo
- Publication number
- CN2935690Y CN2935690Y CN 200620108620 CN200620108620U CN2935690Y CN 2935690 Y CN2935690 Y CN 2935690Y CN 200620108620 CN200620108620 CN 200620108620 CN 200620108620 U CN200620108620 U CN 200620108620U CN 2935690 Y CN2935690 Y CN 2935690Y
- Authority
- CN
- China
- Prior art keywords
- audio energy
- audio
- attached
- energy converter
- top cap
- 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
Links
- 230000005389 magnetism Effects 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000003321 amplification Effects 0.000 abstract description 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 230000010354 integration Effects 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001517546 Etrema Species 0.000 description 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910001329 Terfenol-D Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to an adhesive audio energy-exchanging device; the invention makes the audio energy-exchanging device adhered onto a voice-generating plate by different combination methods, such as high pressure type, adhesive disc type and fixed type. A winding frame of the invention is combined with a drive element, a permanent magnetic sheet and a top cap to be integrally positioned; for both ends of the big magneto telescopic drive element, the permanent magnetic field formed by the permanent magnetic sheet is coupled with the alternating magnetic field of the winding, thus the integration and the amplification of the AC and DC signals are realized; and an adjustable flexible body which applies the appropriate mechanical bias pressure to the drive element is used as to realize the optimal output of the sound vibration of the audio energy-exchanging device; the voice is without voice lag and direction; the response frequency band is wide; the fidelity is good; the output power is large; the volume is small; the invention is a good choice to use together with a majority of the mechanical products and the home artworks.
Description
Technical field
The utility model relates to the panel speaker technology in the stereo set field---the research and development of attached audio energy converter of new generation.
Background technology
The main flow in current loud speaker market is still traditional moving-coil type, and it is made up of voice coil loudspeaker voice coil and generation cone, by voice coil loudspeaker voice coil vibration under alternating magnetic field and external magnetic field interaction of hanging, and then promotes the cone sounding.But it exists some intrinsic defectives, and its Hz-KHz is narrow, for adapting to wide sound demand frequently, adopts the dividing network system of loud speaker multiple unit combination sound box, complex structure, and the cost height, lower tone, and be prone to the transient distortion of inertia effects.Simultaneously, owing to be subjected to the restriction of this body structure, also there are major defects such as directive property is sharp-pointed in conventional loudspeakers, has restricted it the further developing of electroacoustic field, and becomes the technical bottleneck of this link of loud speaker.
Britain Verity company in 1996 and NCT company have successively announced to succeed in developing novel ultra-thin panel speaker, become the important breakthrough in loudspeaker techniques field.What the NXT loud speaker of Verity company adopted is electromagnetic transduction, and the employing of NCT company is piezoelectric ceramic transducer, loud speaker is in light weight, sound equipment frequency band broad, the tonequality height, the sound aphalangia to, stereomicrophone system does not need audio amplifier, start the beginning of ultrathin panel speaker commodity on the contemporary market, opened up the R﹠D direction of innovation for the development of loud speaker.
With the audio-frequency transducer of rare earth big magnetostriction alloy (Rare Earth Giant Magnetostrictive Alloys) functional material as driving element, the application on loud speaker especially panel speaker is a quantum jump of loud speaker manufacturing technology especially now.This material (Terfenol-D) that U.S. ETREMA company has utilized them to produce has been developed serial audio-frequency transducer product, and in the demand that constantly enlarges market.Rare earth big magnetostriction alloy (REMA-CN according to our independent research for many years (patent of invention ZL 01104218.4)
TM) and the explanation of the application practice in transducer, the outstanding characteristic of this functional material has special advantages in the application of panel speaker product.With respect to piezoelectric ceramic is the panel speaker of driving element, the driving element that the rare earth big magnetostriction alloy is made, under the effect in tone currents magnetic field, its magnetostriction output variable surpasses the piezoelectric ceramic field and causes stroke more than 5 times, energy density is big, response speed to magnetic field is exceedingly fast, and reaches the microsecond level, and does not exist piezoelectric ceramic easily to lose extremely aging and high electrical breakdown phenomenon.The electromagnetic type panel speaker then easily produces nonlinear distortion, and frequency characteristic is relatively poor, and power is little.More demonstrated the outstanding characteristic of big magnetostriction panel speaker by contrast, it have output energy big, response speed is fast, bandwidth, and fidelity is good, the reliability height, particularly the power output of big magnetostriction audio-frequency transducer is big, can directly drive very large-area stiffener plate aphalangia to vibration sounding, and tonequality is soft and graceful interesting to listen to and not ear-piercing, omnibearing hearing effect can be reached, outside audio amplifier need not be designed.
Summary of the invention
The purpose of this utility model is to utilize the advantage of the big and volume Miniaturizable of the output power of big magnetostriction audio-frequency transducer, development " attached audio energy converter ", shape is versatile and flexible, can be designed to trendy product or with household, household electrical appliances and the integrated combination of relevant electronic product, significantly improve the tonequality of panel speaker, opened up panel speaker application of new generation.The technical solution of the utility model: be equiped with big magnetostriction driving element (1), coil (2), bobbin (3), permanent magnetism sheet (4) in body (8) inside, go up top cap (5), following top cap (6), permanent magnet (4) is wherein arranged outside the big magnetostriction driving element (1), be tied with coil (2) on the bobbin (3), respectively there are last top cap (5) and following top cap (6) in permanent magnet (4) top and the bottom; The underpart elastic base (7) of combining closely; Socket (10), thin film switch control panel (11), the miniature power board of high integrated digital (12) are housed on shell (9), and outer casing underpart is lined with rubber blanket (13), and adhering mode mainly makes audio-frequency transducer attached on the phonation board by body (8) and deadweight; Further, described top up and down cap can be the ball top or the vertex of a cone; Described adhering mode also can adopt sucked type, and rubber suction cups (14) is set under the body base, and single permanent magnetism top cap (15) is set, and adopts rubber suction cups (6) that audio-frequency transducer is adsorbed on the phonation board; Further, described adhering mode also can adopt fixed, by pull bar (16) audio-frequency transducer is fixed on the phonation board (17); Further, described big magnetostriction driving element (1) is that the rareearth super magnetostrictive alloy is made; Described bobbin (2) is to adopt intensity and the higher non-metal insulating material of heatproof degree; Further, also be provided with in the body (8) and adjust nut (18), disk spring (19), capping (20), screw (21), the adjustment nut (18) that rotates on the body (8) applies certain pressure that gives by the capping (20) on disk spring (19) and the bobbin 3 to big magnetostriction driving element (1), and locks adjustment nut (18) with screw (21).
The beneficial effects of the utility model: all kinds of attached audio energy converter disclosed in the utility model is described by a large amount of tests, simple and compact for structure, volume is frivolous small and exquisite, and power is big, the energy height, can drive very large-area stiffener plate aphalangia to vibration sounding, sound does not have hysteresis quality, non-directive, and response band is wide, fidelity is good, is and numerous electronic products, the household art work and the leisure good selection that audio device mates mutually of going on a tour.
Description of drawings
Fig. 1 top cap is the weight formula attached audio energy converter on ball top;
Fig. 2 top cap is the weight formula attached audio energy converter of the vertex of a cone;
The attached audio energy converter of Fig. 3 sucked type;
The fixed attached audio energy converter of Fig. 4.
Embodiment
For example Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, its core is to optimize the structural design of attached audio energy converter.That is:
1. the driving element of high-performance audio-frequency transducer.Difference by rare earth big magnetostriction functional material prescription, smelting process, crystalline orientation, to optimize the magnetostriction coefficient Lambda (λ) and the magnetostrictive strain rate (d33) of panel speaker driving element, reach the output of shaking of best sound, its electromechanical coupling factor height, energy density is big, very helps the miniaturization of panel speaker.
2. optimize the response output of audio-frequency transducer.Driving element is quiet relatively according to testing, the response characteristic of dynamic magnetic field, choose best field intensity-magnetostrictive strain curved portion, to determine best field strength range and mechanical bias value, realize best mechanical bias value by adjustable elastomer, to form the sound of the optimizing output of shaking.
3. set best alternating current-direct current composite signal.For shaking, the sound that makes transducer exports the ampere-turn value of avoiding the non-linear poor efficiency response under low field intensity and reducing AC coil, to optimize the tonequality output of audio-frequency transducer, can add magnetic biasing in advance presses, promptly add the permanent magnetism component that the permanent magnetic material member produces in advance, be coupled into dynamic magnetic field greater than a certain limit value with the alternating magnetic field of coil, realize the synthetic amplification of alternating current-direct current signal, acoustic frequency response does not have hysteresis, undistorted, and can significantly reduce the caloric value of coil.
4. select the suitable transaudient mode of adhering to.The utility model is the powerful sound source of all kinds of distributed oscillating plate sounding, the promptly small-sized audio-frequency transducer that adheres to.According to its different use occasion, can select for use as the attached formula of the gravity pressure of Fig. 1, Fig. 2, the pull bar fastening-type of the vacuum adsorption type of Fig. 3, Fig. 4 or the method such as fixed that bonds, make on the sounding flat board of small-sized attached flat board speaking device attached to numerous utensils or equipment, can promote surperficial sounding such as any hard objects such as timber, building stones, plastics, glass, can produce the resonance sound field of 360 degree, almost pass through any plane, the sound aphalangia to, tonequality is soft, clear, dynamics is arranged, and has spatial impression and telepresenc.
5. attached audio energy converter described in the utility model has good water-tight, can make the panel speaker that uses under water, and it has outstanding underwater sound characteristic in water, and the performer provides harmonious clearly accompaniment for the water ballet dance.
As follows in conjunction with the typical structure that illustrates the utility model enforcement:
Fig. 1, Fig. 2---the attached audio energy converter of weight formula.Big magnetostriction driving element 1 is under the synthesis in the stationary magnetic field of permanent magnet 4 and coil 2 audio frequency alternating current magnetic fields, flexible vibration on the length direction of the centre bore of bobbin 3, its vibration output is by permanent magnetism sheet 4 and go up top cap 5 and following top cap 6 acts on the center of the inner chamber end face and the elastic base 7 of body 8, big rigidity body 8 weight of quality the ball top of last top cap 5 (or the vertex of a cone---Fig. 2) on, the main channel of vibration output is to produce the elastic strain ripples by the base 7 that the ball top (or vertex of a cone) of top cap 6 down promotes to combine closely with body lower end double-screw bolt, and is sent to the flat board that contacts with its lower surface and sounding by the stickiness of rubber blanket 13.Present embodiment adopts the built-in miniature power amplifier 12 of high integrated digital and the thin film switch control panel 11 of overhead, and power supply and audio frequency input are communicated with by the socket on the shell 9 10.Compact conformation, volume is little, and the attached audio energy converter use of this small-sized weight formula is wide, with electronic devices such as stereo set, microcomputer collocation not only convenient but also fashion, and can experience outstanding acoustics.
The attached audio energy converter of Fig. 3---sucked type.Permanent magnetism sheet 4 is adsorbed on the inner chamber end face of body 8, forms the permanent magnetism component with the top cap 15 of permanent magnetic material at the two ends of driving element 1, and the synthesis in itself and coil 2 audio frequency alternating current magnetic fields is analogous to the attached audio energy converter of weight formula.Utilize rubber suction cups 14 that audio-frequency transducer is adsorbed sounding by being pressed in dull and stereotyped going up.The structure of this attached audio energy converter is compact more, and small volume and less weight is easy to carry, can use flexibly in numerous occasions.If the extended immobilization occasion is used, available high-intensity bullet ripple glue adheres to fixing use the on the phonation board to above-mentioned attached audio energy converter.
Fig. 4---fixed attached audio energy converter.Similar by audio-frequency transducer and Fig. 3 that big magnetostriction driving element 1, coil 2, bobbin 3, permanent magnetism sheet 4, permanent magnetism top cap 15 are formed.By collar 22 and pull bar 16 body 8 is located and is fixed on the phonation board 17, the adjustment nut 18 that rotates on the body 8 applies certain pressure that gives by 20 pairs of audio-frequency transducers of the capping on disk spring (19) and the bobbin 3, so that driving element 1 is in best magnetostrictive strain output state, can produce " jump " effect.After debugging is finished, screw screw 21 and adjust the stability that nut 18 keeps the audio-frequency transducer running status with locking.
Claims (7)
1. attached audio energy converter, it is characterized in that: be equiped with big magnetostriction driving element (1), coil (2), bobbin (3), permanent magnetism sheet (4) in body (8) inside, go up top cap (5), following top cap (6), permanent magnet (4) is wherein arranged outside the big magnetostriction driving element (1), be tied with coil (2) on the bobbin (3), respectively there are last top cap (5) and following top cap (6) in permanent magnet (4) top and the bottom; The underpart elastic base (7) of combining closely; Socket (10), thin film switch control panel (11), the miniature power board of high integrated digital (12) are housed on shell (9), and outer casing underpart is lined with rubber blanket (13), and adhering mode mainly makes audio-frequency transducer attached on the phonation board by body (8) and deadweight.
2. a kind of attached audio energy converter according to claim 1 is characterized in that: described top up and down cap can be the ball top or the vertex of a cone.
3. a kind of attached audio energy converter according to claim 1, it is characterized in that: described adhering mode also can adopt sucked type, rubber suction cups (14) is set under the body base, and single permanent magnetism top cap (15) is set, adopt rubber suction cups (14) that audio-frequency transducer is adsorbed on the phonation board.
4. a kind of attached audio energy converter according to claim 1 is characterized in that: described adhering mode also can adopt fixed, by pull bar (16) audio-frequency transducer is fixed on the phonation board (17).
5. according to claim 1,2 or 3 described a kind of attached audio energy converters, it is characterized in that: described big magnetostriction driving element (1) is that the rareearth super magnetostrictive alloy is made.
6. according to claim 1,2 or 3 described a kind of attached audio energy converters, it is characterized in that: described bobbin (2) is to adopt intensity and the higher non-metal insulating material of heatproof degree.
7. a kind of attached audio energy converter according to claim 4, it is characterized in that: also be provided with in the body (8) and adjust nut (18), disk spring (19), capping (20), screw (21), the adjustment nut (18) that rotates on the body (8) applies certain pressure that gives by the capping (20) on disk spring (19) and the bobbin 3 to big magnetostriction driving element (1), and locks adjustment nut (18) with screw (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108620 CN2935690Y (en) | 2006-10-13 | 2006-10-13 | Adhesion-type audio transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108620 CN2935690Y (en) | 2006-10-13 | 2006-10-13 | Adhesion-type audio transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935690Y true CN2935690Y (en) | 2007-08-15 |
Family
ID=38352371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620108620 Expired - Fee Related CN2935690Y (en) | 2006-10-13 | 2006-10-13 | Adhesion-type audio transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935690Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875039A (en) * | 2010-03-19 | 2010-11-03 | 中南大学 | A dispensing valve driven by a giant magnetostrictive rod with a flexible amplifying arm |
| CN102082982A (en) * | 2011-02-25 | 2011-06-01 | 张琴 | Underwater sound transmitter used for underwater sound transmission |
| CN103008219A (en) * | 2011-09-26 | 2013-04-03 | 甘泽卫 | Vertical-vibration high-energy ultrasonic transducer |
| CN103037292A (en) * | 2011-09-28 | 2013-04-10 | 义钛科技有限公司 | Adsorption speaker with situational function |
| CN103260121A (en) * | 2013-04-08 | 2013-08-21 | 杭州电子科技大学 | Resonant-mode ultra magnetostriction loudspeaker |
| CN103742828A (en) * | 2013-12-27 | 2014-04-23 | 苏州市启扬商贸有限公司 | Table lamp |
| CN109788378A (en) * | 2019-01-25 | 2019-05-21 | 湖南大众传媒职业技术学院 | Media playing apparatus and its control method |
-
2006
- 2006-10-13 CN CN 200620108620 patent/CN2935690Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875039A (en) * | 2010-03-19 | 2010-11-03 | 中南大学 | A dispensing valve driven by a giant magnetostrictive rod with a flexible amplifying arm |
| CN101875039B (en) * | 2010-03-19 | 2012-07-25 | 中南大学 | Magnetostrictive rod drive-based dispensing valve with flexible magnifying arm |
| CN102082982A (en) * | 2011-02-25 | 2011-06-01 | 张琴 | Underwater sound transmitter used for underwater sound transmission |
| CN103008219A (en) * | 2011-09-26 | 2013-04-03 | 甘泽卫 | Vertical-vibration high-energy ultrasonic transducer |
| CN103037292A (en) * | 2011-09-28 | 2013-04-10 | 义钛科技有限公司 | Adsorption speaker with situational function |
| CN103260121A (en) * | 2013-04-08 | 2013-08-21 | 杭州电子科技大学 | Resonant-mode ultra magnetostriction loudspeaker |
| CN103742828A (en) * | 2013-12-27 | 2014-04-23 | 苏州市启扬商贸有限公司 | Table lamp |
| CN109788378A (en) * | 2019-01-25 | 2019-05-21 | 湖南大众传媒职业技术学院 | Media playing apparatus and its control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204810546U (en) | Single vibrating diaphragm structure move magnetism and piezoelectricity combined type broadband speaker | |
| US8135156B2 (en) | Sound reproduction device with enhanced low-frequency sound effect | |
| CN109451403B (en) | Vibration diaphragm structure of transducer of miniature flat-panel loudspeaker and loudspeaker with vibration diaphragm of transducer | |
| CN2935690Y (en) | Adhesion-type audio transducer | |
| CN202121773U (en) | Piezoelectric sounding system integrated with electronic product housing | |
| CN115150692A (en) | A loudspeaker and an attached resonant sound | |
| CN201523448U (en) | Speaker and portable electronic equipment | |
| CN201718027U (en) | Flexible counterweight structure for piezoelectric flat-panel speaker | |
| CN201742549U (en) | Super-power sound conduction device for business windows | |
| CN202035133U (en) | Integrated active audio frequency electromagnetic vibration sounding oscillator | |
| CN101056477B (en) | Radio attached audio energy converter | |
| CN201708923U (en) | Frequency-dividing type piezoelectric osteoacusis auditory device | |
| CN206611571U (en) | Loudspeaker | |
| CN218041710U (en) | Earphone speaker that space utilization is high | |
| CN2935385Y (en) | MP3 attached flat-panel loudspeaker and external attachment flat-panel loudspeaker desk | |
| CN204559872U (en) | Loud speaker and audio amplifier | |
| CN100585726C (en) | MP3 attached tablet player | |
| CN201286166Y (en) | Loudspeaker for flat board sound box | |
| CN201947415U (en) | Resonant sound box | |
| CN202310089U (en) | Loudspeaker based on double giant magnetostrictive laminated pieces | |
| WO2009043219A1 (en) | A new type of audio converter | |
| CN200976671Y (en) | Whole-sound loudspeaker | |
| CN218450528U (en) | Loudspeaker of magnet and magnetic conductive sheet combination vibration | |
| CN2882173Y (en) | A water cluster audio equipment | |
| CN208046892U (en) | A kind of vibrating elements for electroacoustic transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20111013 |