CN202889620U - Multifunctional piezoelectric osophone and touch force feedback system integrated with glasses - Google Patents
Multifunctional piezoelectric osophone and touch force feedback system integrated with glasses Download PDFInfo
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- CN202889620U CN202889620U CN 201220591854 CN201220591854U CN202889620U CN 202889620 U CN202889620 U CN 202889620U CN 201220591854 CN201220591854 CN 201220591854 CN 201220591854 U CN201220591854 U CN 201220591854U CN 202889620 U CN202889620 U CN 202889620U
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Abstract
The utility model relates to a multifunctional piezoelectric osophone and touch force feedback system integrated with glasses, and relates to the field of an osophone and touch force feedback technology. The system comprises a glasses frame base body, an integrated piezoelectric driving and force feedback signal processing circuit board, a power supply module, piezoelectric materials, an upper electrode layer, a lower electrode layer and a flexible circuit, wherein the integrated piezoelectric driving and force feedback signal processing circuit board and the power supply module are fixed at the root parts of glasses legs; the piezoelectric materials are fixed in the grooves of the glasses legs; the upper electrode layer and the lower electrode layer are coated on the surfaces of the piezoelectric materials; and the flexible circuit is connected with the electrode layers and the circuit board. The circuit board receives audio signals and supplies voltage signals to the electrode layers made of the piezoelectric materials; the piezoelectric materials are vibrated at the same frequency of sound electric signals, so as to drive the glasses legs to vibrate together; the vibration of the glasses legs is transmitted to a face of a human body, which is in contact with the glasses legs, so that sound is sensed by auditory nerves of a user through the osophone, and the listening feel is generated; and when the piezoelectric materials are stressed by an external force, corresponding sensing electric signals can be generated, and are processed by the circuit board to be force feedback touch signals. The touch force feedback system is used for realizing control functions of function selection, function switching and the like.
Description
Technical field
The utility model relates to bone conduction type earphone and touch-control force feedback technique field, is specifically related to multifunction piezoelectric actuator osophone and touch-control force feedback system a kind of and that glasses are integrated.
Background technology
Glasses also are the instruments that the modern commonly uses, and not only be used for correcting defects of vision, and glasses are also with the combination of material and art, embody wearer's identity, social status, concept, hobby etc. by tangible mode.According to interrelated data statistics, by 2008, Chinese hypometropia 2.6 hundred million people are arranged; In addition, the eye illnesses such as long sight, amblyopia, astigmatism all need wearing spectacles, sunglasses, light-sensitive glasses even also more and more be subject to liking of people without Sunglasses such as lens glasses.
Along with the progress of science and technology and the raising of people's living standard, earphone becomes requisite consumer electronics in people's daily life.Earphone mainly is divided into ear type, and is In-Ear, wear-type, and ear suspension type along with the development of science and technology, bluetooth earphone occurred again.Bluetooth earphone is applied in Bluetooth technology on the hands-free headsets exactly, allow the user can exempt impeding of irritating electric wire, easily converse in every way, listen to the music comfortablely etc., because people's head away from electronic equipment, can also avoid electromagnetic radiation on the impact of human health.Yet bluetooth earphone still can't be avoided the connectivity problem with people's ear, and connected mode is still nothing more than ear type, and is In-Ear, wear-type, and ear suspension types etc. are several.But, because this traditional earphone wearing mode is more stiff, wear for a long time the unavoidably and uncomfortable sense tired to the people of earphone of this traditional wearing mode.Because glasses are ears and the support of bridge of the nose bikini, ear only plays the effect of supplemental support, so the wear glasses fatigue that causes and discomfort are well below earphone.
U.S. GOOGLE Inc. once issued a Project of being referred to as Glass circulating type glasses at the beginning of 2012.These glasses can be sent to eyeglass with information, and allow the wearing user to receive and send messages by Sound control.These glasses also have a built-in camera, can carry out video record and photograph taking.The technology of this patent is applied to can provide simultaneously the audio frequency support in the similar product in the glasses that the video support is provided, realizes multi-media communication truly.
Piezoelectric is a kind very special material, when piezoelectric crystal or piezoelectric are subject to external force and when deformation occurs, the charge accumulation with the linear ratio of external force occurs on its some surface, and this phenomenon is called piezoelectric effect.And be subject to time spent of doing of external electric field when piezoelectric crystal or piezoelectric, and piezoelectric crystal or piezoelectric result from the linear mechanical deformation of electric field strength, and this phenomenon is called inverse piezoelectric effect.Because these characteristics of piezoelectric, it has begun to be applied in loud speaker and the touch screen technology.
The vibration of sound wave is delivered to auditory nerve by two kinds of paths, and one is the gas conduction, and this also is the path that generally has comparative advantage; Another is osteoacusis, and is insignificant to the formation of the sense of hearing under normal conditions.Osteoacusis has got around external ear and middle ear, and sound wave directly imports inner ear into through skull, and portable and two kinds of modes of squash type are arranged, and the two is worked in coordination with can stimulate spiral organ to cause the sense of hearing.
Bone conduction passage:
Sound wave → skull → osseous labyrinth → inner ear lymph liquid → spiral organ → auditory nerve → cerebral cortex auditory center.
Present osteoacusis product and human body contact portion have many, such as tooth, shoulder, otica, hindbrain, mastoid process etc.
Be standard with regard to operation principle, the main flow bone-conduction speaker can be divided into three major types, electromagnetic type, piezoelectric type and magnetostriction type,
Up to now, the electromechanical transducer of bone-conduction device mainly is electromagnetic type, and primary structure is yoke, voice coil loudspeaker voice coil, magnet and vibrating membrane.Use the principle identical with electrodynamic loudspeaker, the actuating force that will produce by electric current and the interaction between the magnet of coil changes into mechanical oscillation.But the dynamo-electric converter of electromagnetic type has the low shortcoming that reaches low frequency region output level deficiency of transformation efficiency.
Piezoelectric type electromechanical transducer, acoustic vibration generating element are single (two) piezoelectric chip element, are made of metallic plate and bonding thereon piezoelectric board.The piezoelectric deforming that electric current causes drives because mechanical oscillation are by voltage, so can not be attended by the Joule heat loss that the electromagnetic type coil produces.In addition, owing to do not need metal parts (magnet and yoke), can realize lightweight thin with profile.
Patent CN1656849A(2003.5.27, Japan TEMCO, electromagnetic type) announced a kind of electromagnetic type bone conduction loud speaker, via above the rising portions of being located at the yoke periphery and oscillating plate on the locking structure oscillating plate is fixed on above the rising portions, thereby in the number of turns of fully guaranteeing voice coil loudspeaker voice coil, under the prerequisite that can not lower efficiency, path can be integrally formed, the miniaturization requirements such as portable phone can be fully satisfied.
Patent CN1627864A((2004.12.1, Japan NEC, piezoelectric type) a kind of piezoelectric type bone conduction speaker is disclosed, comprise metallic plate and bonding piezoelectric ceramic piezoelectric board on it as single piezoelectric chip element of acoustic vibration element, in order to improve frequency response, covering the silicon rubber flexible material on the piezoelectric element surface.
Although the electromagnetic type bone conduction loud speaker extensive use that patent CN1656849A proposes, its shortcoming is also apparent in view, and as when electric current passes through coil, the resistance of coil can inevitable produce power loss.Therefore, most of energy that power supply provides is as joule's heat energy, consumes on coil, and only has 1% energy as acoustic energy.In addition, at low frequency range, because impedance is low, so electric current can be too high, thereby the load of power supply is increased.As a result, audio output level is limited in low frequency region inevitably.Like this, at low frequency region, audio output level is not enough.
The piezoelectricity bone conduction device that patent CN1627864A proposes has high impedance and high input voltage, and resonance frequency is higher, so that the reproduction of low frequency region is insufficient; In addition, because the mechanical quality factor of vibrational system is very high, the generation of vibrating in characteristic frequency is reinforced or weakens.Thereby can not naturally normally carry out audio reproduction.
For the resonance frequency of better reduction system, the length of the vibrational system that needs increase piezoelectric element consists of, the compliance (also namely reducing bending modulus K) of increase system.Based on this, this patent has proposed the mirror leg of piezoelectric element and glasses is integrated into the new construction of bone conduction speaker.Utilize the slim-lined construction of the mirror leg of glasses, as the carrier of piezoelectric element, can well reduce the resonance frequency of system, improve the sound equipment replaying effect of low frequency part.Simultaneously, utilize leg of spectacles and human body head especially contacting of mastoid process of temporal bone position, the osteoacusis under can fine realization low-loss.And, cooperate special-purpose piezoelectric element driving circuit, the power consumption of the piezoelectricity bone conduction earphone that this patent is realized is only for 10% ~ 20% of traditional electrical magnetic-type bone conduction earphone, under the identical operating time, the capacity of battery part be can reduce, lightweight and the miniaturization of glasses integral body are conducive to realize.
By the piezoelectric effect of piezoelectric, when existing applied external force to be applied to piezoelectric element surperficial, will two of the piezoelectric element not coplanar accumulation that produce electric charge, form voltage signal.
The U.S. state patent application (inertia/acoustic elements and structure thereof-INERTIAL/AUDIO UNIT AND CONSTRUCTION) that is published in 2002 on March 19,, application number are US6359371B1 provides a kind of structure, this composite set comprises an element (such as piezoelectricity or ferroelectric material) that the signal of telecommunication can be converted to vibration signal, and vibrator is connected with the housing of its application vibration is reached housing so that hull vibration; Thereby the synchronous signal unit also can be converted to external pressure the signal of telecommunication and realize switch and control function.
Yet the related system of this patent can only realize simple switching signal, and vibration signal; Can't realize the audio playback in broadband and the touch-control power relevant with the pressure size-signal of telecommunication conversion.
Summary of the invention
The purpose of this utility model is the deficiency in view of prior art, proposes pointedly multifunction piezoelectric actuator osophone and touch-control force feedback system a kind of and that glasses are integrated.
This system comprises the spectacle-frame matrix, also comprises:
Be fixed in integrated form Piezoelectric Driving and force feedback signal treatment circuit plate and the supply module (such as lithium battery) of the leg of spectacles root of spectacle-frame matrix;
Be fixed in the piezoelectric in the leg of spectacles groove;
Be coated on upper electrode layer and the lower electrode layer of piezoelectric material surface;
The flexible circuit that connects upper electrode layer, lower electrode layer and integrated form Piezoelectric Driving and force feedback signal treatment circuit plate;
Integrated form Piezoelectric Driving and force feedback signal treatment circuit plate be by received audio signal, and apply voltage signal by flexible circuit to upper electrode layer and the lower electrode layer of piezoelectric; Because inverse piezoelectric effect, piezoelectric occurs with the sound signal of telecommunication with vibration frequently, and then drives leg of spectacles and vibrate together, and the with it human body face (such as mastoid process of temporal bone) of contact is imported in the vibration of leg of spectacles into, sound by people's auditory nerve perception, produces sense of hearing by osteoacusis.Described piezoelectric is when being subjected to external force (or passing through the pressure that leg of spectacles surface housing button transmits), can produce corresponding electrical signal of reaction, the built-in integrated circuit that this signal can be connected on the frame is treated to corresponding force feedback touching signals, is used for the control functions such as practical function selection and switching.
For signal and the force feedback testing circuit signal of realizing drive circuit shares one group of signal link; Can be by block isolating circuit (such as capacitance) will (20Hz ~ 20kHz) be delivered to piezoelectric for the AC signal that drives.And signal monitoring circuit is judged the key press that is applied on the piezoelectric by the direct current biasing on the signal lines (when the piezoelectric pressurized, can produce different dc offset voltages because of compression degree), thereby realizes the parsing to control command.
Described piezoelectric is ceramic-like materials such as PZT, or piezoelectricity high-molecular organic material such as PVDF film.
Described upper electrode layer is piecemeal or the partitioned organization that bar shaped or rectangular array distribute, and is arranged to respectively different functional areas.Bar shaped can be the strip of rule or the crooked bar shaped that adapts with the leg of spectacles profile; Position, intensity, the time value information of piecemeal or zoning arrangement upper electrode layer perception finger contact power, and be arranged to respectively different functional areas, for example play/suspend, a upper head, next increases volume, reduces volume.
Described piezoelectric is the single or multiple lift composite construction; Wherein, described multi-layer compound structure adopts the bonding formation multilayer of monolayer material, or adopts low temperature co-fired technology directly to form sandwich construction.
On the leg of spectacles groove of described placement piezoelectric loam cake is set.
Described integrated form Piezoelectric Driving and force feedback signal treatment circuit plate and piezoelectric are positioned on the leg of spectacles of the same side or lay respectively on two legs of spectacles.
Between described piezoelectric and the spectacle-frame matrix by weld, inlay, in-mould injection or gluing knot mode realize mechanical connection, thereby will be delivered to whole leg of spectacles by the mechanical oscillation deformation that piezoelectric produces.
Described flexible circuit is silver conductive adhesive, lead-in wire, FPC or compliant conductive band, and its contact resistance is less than 5 ohm.
Described integrated form Piezoelectric Driving and force feedback signal treatment circuit plate share one group of holding wire and realize driving and signal testing function.
Comprising wired or wireless (such as bluetooth, WIFI etc.) audio frequency in described integrated form Piezoelectric Driving and the force feedback signal treatment circuit plate accepts and control command sending function module.
Described glasses include but not limited to the glasses of following kind: near-sighted glasses, presbyopic glasses, sunglasses, goggles, and the glasses series products with projection Presentation Function.
The beneficial effects of the utility model are:
Inherited the function of glasses and earphone, space availability ratio is high, externally disturb low, simple in structure, cost is low, volume is little, comfortable wearing, has the market competitiveness.
By the mode of blockette, the button of a plurality of functions can be set; Press electric device by structure button pressure and can produce corresponding electric impulse signal, realize that the function of circuit is switched.Simultaneously, the cantilever design that the mirror leg of patent and piezoelectric element consist of has splendid linearity; Also namely can pass through the size of the direct reaction pressure of height of signal of telecommunication voltage.This will enrich the touch controllable function of button greatly, realize the analog quantity control function of the similar gas depth.This can realize the zoom in/out function that image is continuous and smooth-going in possessing the projection video glasses of image control.
Description of drawings
Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c) are respectively schematic diagram, A partial enlarged drawing and the B-B cutaway view of embodiment 1;
Fig. 2 (a), Fig. 2 (b) and Fig. 2 (c) are respectively schematic diagram, C partial enlarged drawing and the D-D cutaway view of embodiment 2;
Number in the figure:
1-spectacle-frame matrix; 2-integrated form Piezoelectric Driving and force feedback signal treatment circuit plate; The 3-piezoelectric; The 4-upper electrode layer; The 5-lower electrode layer; The 6-flexible circuit; The 7-loam cake.
Embodiment
The utility model provides multifunction piezoelectric actuator osophone and touch-control force feedback system a kind of and that glasses are integrated, below in conjunction with description of drawings and embodiment the utility model is described further.
Fig. 1 (a); Fig. 1 (b) and Fig. 1 (c) are respectively the schematic diagrames of the utility model embodiment 1; partial enlarged drawing and cutaway view; the glue such as integrated form Piezoelectric Driving and force feedback signal treatment circuit plate 2 usefulness AB glue or screw are fixed in the leg of spectacles root position of spectacle-frame matrix 1; the glue such as piezoelectric 3 usefulness AB glue are fixed in leg of spectacles groove medium position; upper electrode layer 4 and lower electrode layer 5 are coated on piezoelectric 3 surfaces; flexible circuit 6 connects upper electrode layer 4; lower electrode layer 5 and integrated form Piezoelectric Driving and force feedback signal treatment circuit plate 2; the leg of spectacles groove has loam cake 7, is used for isolation and protection piezoelectric 3.
The driving circuit section of integrated form Piezoelectric Driving and force feedback signal treatment circuit plate 2 adopts special-purpose piezoelectric driving circuit TI-TPA2100P1, and this kind of chip can use the powered battery of 2.5V ~ 5.5V, provides the output signal that is up to 19Vpp to drive piezoelectric.The signal of drive circuit is delivered to AC signal on the piezoelectric 3 by block isolating circuit (such as capacitance).And signal monitoring circuit is judged the key press that is applied on the piezoelectric by the direct current biasing on the signal lines (when the piezoelectric pressurized, can produce different dc offset voltages because of compression degree), thereby realizes the parsing to control command.The charge amplifying circuit that force feedback signal treatment circuit plate uses AD823 to build can be finished.
For obtaining preferably flexible and reduction driving voltage (it is safer for human body that use is no more than the driving voltage of 20Vpp), piezoelectric 3 is selected thick, the 5 layers of PZT pottery (every layer thickness is 20um) of 0.1mm, and ceramic width dimensions is 2mm, long 30mm.For improving drive efficiency, ceramic material should be chosen the higher material of d31 coefficient.
Integrated form Piezoelectric Driving and force feedback signal treatment circuit plate 2 be by received audio signal, and apply voltage signal by flexible circuit 6 to upper electrode layer 4 and the lower electrode layer 5 of piezoelectric 3; Because inverse piezoelectric effect, piezoelectric 3 occurs with the sound signal of telecommunication with vibration frequently, and then drives leg of spectacles and vibrate together, and the with it human body face of contact is imported in the vibration of leg of spectacles into, and sound by people's auditory nerve perception, produces sense of hearing by osteoacusis; Piezoelectric 3 produces corresponding electrical signal of reaction when being subjected to external force, be integrated formula Piezoelectric Driving and force feedback signal treatment circuit plate 2 and be treated to corresponding force feedback touching signals, is used for the control functions such as practical function selection and switching.
Fig. 2 (a), Fig. 2 (b) and Fig. 2 (c) are respectively schematic diagram, partial enlarged drawing and the cutaway view of the utility model embodiment 2, and its difference in embodiment 1 is that described upper electrode layer 4 is bar shaped partitioned organizations, comprise 4a, 4b, the information such as the position that three subregions of 4c, kind electrode arrangement mode can perception finger contact power, intensity, time value, every cube electrode can be arranged to different functional areas, for example play/suspend, a upper head, next, increase volume, reduce volume etc.
More than be more excellent embodiment of the present utility model, those skilled in the art can make any modification in the scope of claim regulation.
Claims (10)
- One kind with integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of glasses, comprise spectacle-frame matrix (1), it is characterized in that this system also comprises:Be fixed in integrated form Piezoelectric Driving and force feedback signal treatment circuit plate (2) and the supply module of the leg of spectacles root of spectacle-frame matrix (1),Be fixed in the piezoelectric (3) in the leg of spectacles groove,Be coated on upper electrode layer (4) and the lower electrode layer (5) on piezoelectric (3) surface,The flexible circuit (6) that connects upper electrode layer (4), lower electrode layer (5) and integrated form Piezoelectric Driving and force feedback signal treatment circuit plate (2).
- 2. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1 is characterized in that described piezoelectric (3) is ceramic-like materials or piezoelectricity high-molecular organic material.
- 3. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1, it is characterized in that, described upper electrode layer (4) is piecemeal or the partitioned organization of bar shaped or rectangular array distribution, and is arranged to respectively different functional areas.
- 4. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1 is characterized in that described piezoelectric (3) is the single or multiple lift composite construction; Wherein, described multi-layer compound structure adopts the bonding formation multilayer of monolayer material, or adopts low temperature co-fired technology directly to form sandwich construction.
- 5. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1 is characterized in that, loam cake (7) is set on the leg of spectacles groove of described placement piezoelectric (3).
- 6. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1, it is characterized in that described integrated form Piezoelectric Driving and force feedback signal treatment circuit plate (2) and piezoelectric (3) are positioned on the leg of spectacles of the same side or lay respectively on two legs of spectacles.
- 7. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1, it is characterized in that, between described piezoelectric (3) and the spectacle-frame matrix (1) by weld, inlay, in-mould injection or gluing knot mode realize mechanical connection.
- 8. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1 is characterized in that described flexible circuit (6) is silver conductive adhesive, lead-in wire, FPC or compliant conductive band, and its contact resistance is less than 5 ohm.
- 9. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1, it is characterized in that described integrated form Piezoelectric Driving and force feedback signal treatment circuit plate (2) share one group of holding wire and realize driving and signal testing function.
- 10. integrated multifunction piezoelectric actuator osophone and the touch-control force feedback system of a kind of and glasses according to claim 1, it is characterized in that, comprise wired in described integrated form Piezoelectric Driving and the force feedback signal treatment circuit plate (2) or ANTENN AUDIO acceptance and control command sending function module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591854 CN202889620U (en) | 2012-11-10 | 2012-11-10 | Multifunctional piezoelectric osophone and touch force feedback system integrated with glasses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591854 CN202889620U (en) | 2012-11-10 | 2012-11-10 | Multifunctional piezoelectric osophone and touch force feedback system integrated with glasses |
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| CN202889620U true CN202889620U (en) | 2013-04-17 |
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| CN 201220591854 Expired - Fee Related CN202889620U (en) | 2012-11-10 | 2012-11-10 | Multifunctional piezoelectric osophone and touch force feedback system integrated with glasses |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105996273A (en) * | 2016-05-13 | 2016-10-12 | 陈昊 | Helmet provided with multifunctional head strap |
| WO2020244246A1 (en) * | 2019-06-01 | 2020-12-10 | 深圳市音芙文化科技有限公司 | Music playing device coupled to lollipop |
-
2012
- 2012-11-10 CN CN 201220591854 patent/CN202889620U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105996273A (en) * | 2016-05-13 | 2016-10-12 | 陈昊 | Helmet provided with multifunctional head strap |
| WO2020244246A1 (en) * | 2019-06-01 | 2020-12-10 | 深圳市音芙文化科技有限公司 | Music playing device coupled to lollipop |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20191110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |