CN105101020B - Method for improving tone quality of bone conduction speaker and bone conduction speaker - Google Patents

Abstract

The invention discloses a method for improving the tone quality of a bone conduction speaker and the bone conduction speaker capable of improving the tone quality. The bone conduction speaker comprises a housing, a transducer and a first vibrating sheet; the first vibrating sheet is connected with the transducer physically; the first vibrating sheet is connected with the housing physically; the first vibrating sheet enables the speaker to produce a harmonic peak; and the transducer can produce at least one harmonic peak. The effects of improving the tone quality of the bone conduction speaker, particularly the quality of medium and low tone, and improving the wearing comfort of the bone conduction speaker, are achieved by specific design.

Description

A kind of method and bone-conduction speaker for improving bone-conduction speaker tonequality

Technical field

The present invention relates to a kind of high performance bone-conduction speaker and improve bone-conduction speaker by particular design Tonequality, especially middle bass quality, reduce leakage sound phenomenon, and the method for increasing bone-conduction speaker wear comfort.

Background technology

Generally, people can acoustic be because that air is delivered to ear-drum by external ear duct vibration, pass through The auditory nerve of the vibratory drive people that ear-drum is formed, thus perceives the vibration of sound.Bone-conduction speaker operationally, Ke Yitong The remarkable skin of normal open, hypodermis and bone are delivered to the auditory nerve of people, so as to make one to hear sound.

The content of the invention

The present invention relates to a kind of high performance bone-conduction speaker and by particular design improve bone-conduction speaker sound The method of matter.The bone-conduction speaker includes that vibration unit, the ear frame/earphone of connection vibration unit are linked with；The vibration Unit at least includes a contact surface, and the contact surface is at least partly directly or indirectly contacted with user,

In another embodiment, a kind of bone-conduction speaker for improving tonequality of present invention offer, an including shell, one change Can device, one first vibration-transmitting plate；Connected by physics mode between first vibration-transmitting plate and the transducing head；Described first passes Shake and connected by physics mode between piece and the shell；First vibration-transmitting plate can cause loudspeaker to produce a resonance peak；Institute Stating transducing head can produce at least one resonance peak；

Optionally, the transducing head includes an at least oscillating plate and one second vibration-transmitting plate, the transducing head can produce to Few two resonance peaks；Optionally, described two resonance peaks are all in the audible audio frequency range of human ear；Optionally, it is described Transducing head includes at least one voice coil loudspeaker voice coil and at least one magnetic circuit system；The voice coil loudspeaker voice coil and the oscillating plate physical connection, it is described Magnetic circuit system and the second vibration-transmitting plate physical connection；Optionally, the stiffness factor of the oscillating plate is passed more than described second and shaken The stiffness factor of piece；Optionally, first vibration-transmitting plate is flexure strip；Optionally, second vibration-transmitting plate is flexure strip；It is optional , the bone-conduction speaker includes at least one contact surface, and the contact surface contacts and transmit vibration with user；It is optional , first vibration-transmitting plate is to the pole of center influx at least two first；Preferably, the first vibration-transmitting plate thickness is 0.005mm-3mm, it is highly preferred that thickness is 0.01mm-2mm, more preferably, thickness is 0.01mm-1mm, it is further preferred that Thickness is 0.02mm-0.5mm.

Description of the drawings

Fig. 1 causes human ear to produce the process of the sense of hearing for bone-conduction speaker.

Fig. 2-A are the outline drawing that a kind of vibration of bone-conduction speaker provided in an embodiment of the present invention produces part.

Fig. 2-B are the structure chart that a kind of vibration of bone-conduction speaker provided in an embodiment of the present invention produces part.

Fig. 3 is the structure chart that a kind of vibration of bone-conduction speaker provided in an embodiment of the present invention produces part.

Fig. 4-A and 4-B be respectively in the embodiment of the present invention a kind of top view of bone-conduction speaker panel bonding mode and Side view.

Fig. 5 is the structure chart that a kind of vibration of bone-conduction speaker in the embodiment of the present invention produces part.

A kind of vibration response curve of bone-conduction speaker work that Fig. 6 is suitable for by the embodiment of the present invention.

A kind of vibration response curve of bone-conduction speaker work that Fig. 7 is suitable for by the embodiment of the present invention.

Fig. 8 is the structure chart that a kind of vibration of bone-conduction speaker in the embodiment of the present invention produces part.

Fig. 9-A and Fig. 9-B are the knot of a kind of bone-conduction speaker provided in an embodiment of the present invention and its compound vibrating device Composition.

A kind of frequency response curve of bone-conduction speaker that Figure 10 is suitable for by the embodiment of the present invention.

Figure 11 is the structure chart of a kind of bone-conduction speaker provided in an embodiment of the present invention and its compound vibrating device.

Figure 12-A are the equivalent model figure that a kind of bone-conduction speaker vibration produces part in the embodiment of the present invention.

A kind of vibration response curve of bone-conduction speakers of Figure 12-B by being suitable in a specific embodiment.

A kind of vibration response curve of bone-conduction speakers of Figure 12-C by being suitable in a specific embodiment.

Figure 13 is the structure chart that a kind of vibration of the bone-conduction speaker in a specific embodiment produces part.

Figure 14 is the structure chart that bone-conduction speaker vibration produces part in a specific embodiment.

Figure 15-A are the application scenarios of bone-conduction speaker in a specific embodiment.

Figure 15-B are the vibration response curve that bone-conduction speaker vibration produces part in a specific embodiment.

Figure 16 is the structure chart that bone-conduction speaker vibration produces part in a specific embodiment.

Figure 17 is the structural representation of bone-conduction speaker panel in a specific embodiment.

Specific embodiment

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to use needed for embodiment description Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, are not limited The range of application of the present invention, for one of ordinary skill in the art, on the premise of not paying creative work, can be with Apply the present invention to other similar scenes according to these accompanying drawings.

As shown in the specification and claims, unless context clearly points out exceptional situation, " one ", " one ", The word such as " one kind " and/or " being somebody's turn to do " not refers in particular to odd number, may also comprise plural number.It is, in general, that term " including " is only carried with "comprising" Show including clearly identify the step of and element, and these steps and element do not constitute one it is exclusive enumerate, method or Equipment be likely to comprising other the step of or element.Term "based" is " being based at least partially on ".Term " one embodiment " Represent " at least one embodiment "；Term " another embodiment " expression " at least one further embodiment ".The phase of other terms Close during definition will be described below and be given.

Hereinafter, without loss of generality, in describing the present invention osteoacusis correlation technique when, will using " bone-conduction speaker " or The description of " bone conduction earphone ".The description is only a kind of form of osteoacusis application, for one of ordinary skill in the field For, " loudspeaker " or " earphone " also can be replaced with other similar words, such as " player ", " audiphone " etc..In fact, this Various implementations in invention can be easily applied on the hearing device of other non-loudspeaker classes.For example, for this For the professional in field, after the general principle for understanding bone-conduction speaker, may be in the situation without departing substantially from this principle Under, the concrete mode to implementing bone-conduction speaker carries out various amendments and change in form and details with step, especially, Ambient sound pickup and processing function are added in bone-conduction speaker, makes the loudspeaker realize the function of audiphone.For example, wheat The microphones such as gram wind can pick up the sound of user/wearer's surrounding environment, under certain algorithm, after acoustic processing (or the electric signal for producing) is sent to bone-conduction speaker part.I.e. bone-conduction speaker can through certain modification, plus Enter the function of picking up surrounding sounds, and after certain signal transacting sound is passed to by bone-conduction speaker part and make User/wearer, so as to realize the function of ossiphone.As an example, algorithm mentioned here can disappear including noise Except, automatic growth control, acoustic feedback suppression, wide dynamic range compression, active Context awareness, active anti-noise, directional process, tinnitus The combination that one or more of process, multi-channel wide dynamic range compression, the control of active chauvent's criterion, volume etc..

Sound is passed to hearing system by bone-conduction speaker by bone, so as to produce the sense of hearing.Fig. 1 is that osteoacusis is raised one's voice Device produces the process of the sense of hearing, mainly including following step：In step 101, bone-conduction speaker is obtained or produced containing sound The signal of message breath；In step 102, bone-conduction speaker produces vibration according to signal；In step 103, will by transmission system Vibration passes to sensing terminal 104.In a kind of operative scenario, the letter of bone-conduction speaker pickup or generation containing acoustic information Number, acoustic information is converted into by acoustical vibration by transducing head, and sound is passed to by sense organ by transmission system, most Sound is heard eventually.Without loss of generality, hearing system described above, the main body of perceptron official rank can be people, or tool There is the animal of hearing system.It should be noted that not constituted to bone using the description of bone-conduction speaker below for the mankind Conduction speaker uses the restriction of scene, similar description to may be equally applicable for other animals.

Above the description to bone-conduction speaker substantially flow process is only specific example, is not considered as unique feasible Embodiment.For clearly for one of skill in the art, after the general principle for understanding bone-conduction speaker, may In the case of without departing substantially from this principle, the concrete mode to implementing bone-conduction speaker is carried out in form and details with step Various amendments and change, but these amendments and change still within the scope of above description.For example, obtain in step 101 and contain Between signal and step 102 vibration for having acoustic information is produced, signal correction or reinforcing step can be additionally added, the step can To be strengthened or be corrected the signal obtained in 101 according to specific algorithm or parameter.Further, in step 102 Vibration is produced and 103 vibration transmission steps between, can additionally add vibrating enhanced or amendment step.The step can be utilized 101 voice signal is either strengthened or is corrected according to ambient parameter to the vibration produced by 102.In the same manner, the vibration is strong Changing or correct step can complete between step 103 and 104, for example, noise reduction, acoustic feedback suppression, wide dynamic model are carried out to signal Confined pressure contracting, automatic growth control, active Context awareness, active anti-noise, directional process, tinnitus process, multi-channel wide dynamic range Compression, the control of active chauvent's criterion, volume, or other are similar, or more any combination process, these amendments and change still Within the claims of the present invention.Method and steps described herein can in appropriate circumstances with any Suitable order, or while realize.In addition, in the case of the spirit and scope of theme described without departing from here, can be with Each independent step is deleted from any one method.The each side of any example as described above can be with described its The each side of any example in his example combines, to constitute further example, without losing the effect sought.

Specifically, in a step 101, bone-conduction speaker can contain sound to obtain or produce according to different modes The signal of information.Acoustic information can refer to the video with format, audio file, it is also possible in general sense can refer to It is enough to carry the data or file that sound is finally converted into by particular approach.Signal containing acoustic information may come from bone The memory cell of conduction speaker itself, it is also possible to come from the information beyond bone-conduction speaker and produce, store or transmit System.Voice signal described herein is not limited to electric signal, may also comprise other forms outside electric signal such as light Signal, magnetic signal, mechanical signal etc..In principle, as long as the signal includes loudspeaker and can believe to the sound for producing vibration Breath, can be processed as voice signal.Voice signal is also not limited to a signal source, may come from multiple signals Source.These multiple signal sources be able to can also be independent of each other with correlation.Voice signal is transmitted or the mode of generation can be wired Can also be wireless, it can also be in real time time delay that can be.For example, bone-conduction speaker can be by wired or nothing The mode of line receives the electric signal containing acoustic information, it is also possible to data are directly obtained from storage medium, produces voice signal； The component with sound collection function can be added in ossiphone, by the sound in pickup environment, by the machine of sound Tool vibration is converted into electric signal, and after amplifier process the electric signal for meeting particular requirement is obtained.Wherein, wired connection includes But it is not limited to use metallic cable, optical cable or metal and optical compound cable, for example：Coaxial cable, communication cable, Flexible cable, spiral cable, nonmetallic sheathed cable, sheath wire, multicore cable, twisted-pair cable, ribbon cable, screen Cover cable, communication cable, paired cable, twin-lead cable and twisted-pair feeder.

Example described above only conduct facilitates the medium of purposes of discussion, wired connection to can also be other types, for example, The transport vehicle of other electric signals or optical signal etc..Wireless connection include but is not limited to radio communication, FSO, Acoustic communication and electromagnetic induction etc..Wherein radio communication is included but is not limited to, IEEE802.11 series standards, IEEE802.15 Series standard (such as Bluetooth technology and purple-bee technology etc.), first generation mobile communication technology, Generation Mobile Telecommunication System technology are (for example FDMA, TDMA, SDMA, CDMA and SSMA etc.), general packet radio service technology, G mobile communication (for example CDMA2000, WCDMA, TD-SCDMA and WiMAX etc.), forth generation mobile communication technology (such as TD-LTE and FDD-LTE etc.), Satellite communication (such as GPS technology etc.), near-field communication (NFC) and other operate in the technology of ISM band (such as 2.4GHz etc.)； FSO includes but is not limited to visible ray, infra-red signal etc.；Acoustic communication includes but is not limited to sound wave, ultrasonic wave news Number etc.；Electromagnetic induction includes but is not limited near field communication technology etc..Example described above only conduct facilitates purposes of discussion, wirelessly The medium of connection can also be other types, for example, Z-wave technologies, the civil radio frequency range of other charges and military wireless Electric frequency range etc..For example, as the application scenes of this technology, bone-conduction speaker can be by Bluetooth technology from other equipment Obtain the signal containing acoustic information, it is also possible to direct access data in the memory cell for directly carrying from bone-conduction speaker, Voice signal is produced again.

Storage device/memory cell mentioned here, including Direct Attached Storage (Direct Attached Storage), network attached storage (Network Attached Storage) and storage area network (Storage Area The storage device in storage system such as Network).Storage device includes but is not limited to common all kinds of storage devices such as solid-state and deposits Storage equipment (solid state hard disc, solid-state hybrid hard disk etc.), mechanical hard disk, USB flash memory, memory stick, storage card (such as CF, SD), its He drives (such as CD, DVD, HD DVD, Blu-ray), random access memory (RAM) and read-only storage (ROM).Wherein RAM has But it is not limited to：Dekatron, selectron, delay line storage, WILLIAMS-DARLING Ton pipe, dynamic RAM (DRAM), static state Random access memory (SRAM), IGCT random access memory (T-RAM) and zero capacitance random access memory (Z-RAM) etc.；ROM has again But it is not limited to：Magnetic bubble memory, A.O. linear memory, thin-film memory, magnetic plated wire memeory, magnetic core internal memory, magnetic drum memory, CD drive, hard disk, tape, early stage NVRAM (nonvolatile storage), phase-change memory element, reluctance type random storage formula internal memory, Ferroelectric random stored memory, non-volatile SRAM, flash memory, that the electronics formula of erasing can make carbon copies read-only storage, erasable programmable is read-only Memory, programmable read only memory, Mask ROM, floating connection door random access memory, nanometer random storage Device, racing track internal memory, variable resistance type internal memory and programmable metallization unit etc..Above-mentioned storage device/memory cell is Some examples are listed, the storage device that the storage device/memory cell can be used is not limited thereto.

In 102, bone-conduction speaker can be converted into the signal containing acoustic information vibrating and producing sound.Vibration Generation along with energy conversion, bone-conduction speaker can realize signal to mechanical oscillation turn using specific transducing head Change.Coexisting and changing for number of different types energy may be included during conversion.For example, electric signal can by transducing head To be directly changed into mechanical oscillation, sound is produced.Again for example, acoustic information is included in optical signal, a kind of specific transducing dress Put the process that can realize that vibration signal is converted to by optical signal.Other can coexist and change in the transducing head course of work Kind of energy include heat energy, magnetic field energy etc..The energy conversion regime of transducing head include but is not limited to moving-coil type, it is electrostatic, Piezoelectric type, moving-iron type, pneumatic type, electromagnetic type etc..The frequency response range and tonequality of bone-conduction speaker can be changed by difference The impact of each physical assemblies performance in energy mode and transducing head.For example, in moving-coil type transducing head, the column of winding Coil is connected with oscillating plate, and the coil driven by signal code drives oscillating plate vibration sounding in magnetic field, oscillating plate material Stretch and contraction, the deformation of fold, size, shape and fixed form, magnetic density of permanent magnet etc. all can raise one's voice to osteoacusis The final audio quality of device brings very big impact.Again for example, oscillating plate can be minute surface symmetrical structure, centrosymmetric knot Structure or asymmetrical structure；The cavernous structure of interruption can be provided with oscillating plate, makes oscillating plate produce bigger displacement, from And allow bone-conduction speaker to realize higher sensitivity, improve the power output of vibration and sound；Again for example, oscillating plate is annulus Body structure, arranges the multiple poles to center influx in annulus body, and the number of pole can be two or more.

For clearly for one of skill in the art, transducing mode and concrete device is understood osteoacusis can be affected After the general principle of loudspeaker audio quality, may be in the case of without departing substantially from this principle, to the above-mentioned influence factor for referring to Carry out appropriate choice, combination, amendment or change, so as to obtain preferable tonequality.For example, using the permanent magnet of high-magnetic-density, Plate material and design are more preferably vibrated, more preferable tonequality is obtained in that.

Term " tonequality " used herein can be understood as that the quality of sound can be reflected, refer to that Jing process, transmission were waited The fidelity of audio frequency after journey.Tonequality is mainly described by loudness, tone and tone color three elements.Loudness is human ear to sound intensity Subjective feeling, it is proportional to the logarithm value of intensity of sound, and intensity of sound is sounded more greatly feels louder.And with the frequency of sound Rate is relevant with waveform.Tone, also known as pitch, refers to subjective feeling of the human ear to acoustical vibration frequency height.Tone mainly depends on In the fundamental frequency of sound, fundamental frequency is higher, and tone is higher, while it is also relevant with the intensity of sound.Tone color refers to human ear to sound The subjective sensation of sound characteristic.Tone color depends primarily on the spectrum structure of sound, loudness, duration also with sound, sets up The factor such as journey and decay process is relevant.The spectrum structure of sound is with fundamental frequency, tone number, harmonics distribution situation, amplitude size And phase relation is describing.Different spectrum structures, just there is different tone colors.Even if fundamental frequency is identical with loudness, if humorous Wave structure is different, and tone color is also differed.

The implementation method of bone-conduction speaker vibration is a lot, and Fig. 2-A and Fig. 2-B are that osteoacusis is raised in a specific embodiment The vibration of sound device produces the structure chart of part, including shell 210, panel 220, transducing head 230 and connector 240.

The vibration of panel 220 is delivered to auditory nerve by tissue and bone, so as to make one to hear sound.Panel 220 with Human body skin can be directly contact, it is also possible to (hereinafter can be retouched in detail by the vibration transfer layer being made up of certain material State) contact with skin.Certain material mentioned here can be selected from low-density material, for example plastics (for example but Be not limited to high-molecular polythene, blow-molding nylon, engineering plastics etc.), rubber, or can reach same performance other are single Or composite.For the species of rubber, such as but not limited to versatility rubber and Special type rubber.General purpose rubber include but It is not limited to natural rubber, isoprene rubber, butadiene-styrene rubber, butadiene rubber, neoprene etc..Special type rubber again including but not limited to Nitrile rubber, silicon rubber, fluorubber, polysulfide rubber, polyurethane rubber, chlorohydrin rubber, ACM, epoxy propane rubber Deng.Wherein, butadiene-styrene rubber is included and is not limited to SBR of emulsion polymerization and solution polymerization styrene-butadiene rubber.For composite, Such as but not limited to glass fibre, carbon fiber, boron fibre, graphite fibre, fiber, graphene fiber, silicon carbide fibre or aramid fiber The reinforcing materials such as fiber.Can also be other organic and/or inorganic material compounds, such as glass fiber reinforcement is unsaturated poly- All kinds of fiberglass of ester, epoxy resin or phenolic resin as matrix resin composition.Other materials that can be used to make vibration transfer layer are also wrapped Include the combination of one or more in silica gel, polyurethane (Poly Urethane), Merlon (Poly Carbonate).Change Energy device 230 is to realize the component that electric signal is changed to mechanical oscillation based on certain principle.Panel 220 and the phase of transducing head 230 Even, vibrate under the drive of transducing head 230.Connector 240 connects panel 220 and shell 210, for by transducing head 230 In being positioned at shell.When vibration is passed to panel 220 by transducing head 230, vibration can be passed to by connector 240 simultaneously Shell, causes shell 210 to vibrate, and also can accordingly change the mode of vibration of panel 220, so as to affect panel 220 to pass to human body The vibration of skin.

It should be noted that mode transducing head and panel being fixed in shell is not limited to the connection of Fig. 2-B descriptions Mode, it is clear that for a person skilled in the art, if using connector 240, or connect using made by different materials Fitting 240, adjustment transducing head 230 or panel 220 are connected to mode of shell 210 etc., can all show different mechanics Impedance operator, produces different vibration transmission effects, so as to the vibration efficiency for affecting vibrational system overall, produces different sounds Matter.

Fig. 2-B show a kind of example of connected mode, and connector 240 can be connected with the top of shell 210.Fig. 3 is another A kind of example of connected mode, panel 320 stretches out from the opening of shell 310, by connecting between panel 320 and transducing head 330 The connection of socket part point 350, and be connected by connector 340 with shell 310.

In other embodiment, it is also possible to transducing head is fixed on into enclosure interior, example with other connected modes Such as, transducing head can be fixed on shell inner bottom surface by connector, or by the bottom of transducing head (transducing head with The side of panel connection is top, and side in contrast is bottom) it is suspended vacantly in enclosure interior by spring, it is also possible to will It is connected at the top of transducing head on shell, or by multiple connector phases positioned at diverse location between transducing head and shell Connect, or any combination of various connected modes above.

In some specific embodiments, connector has certain elasticity.The elasticity of connector by connector material, Thickness, structure etc. are many-sided to be determined.For the material of connector, such as but not limited to, steel (such as but not limited to stainless steel, Carbon steel etc.), alloy in lightweight (such as but not limited to aluminium alloy, beryllium copper, magnesium alloy, titanium alloy etc.), plastic cement (such as but not limited to High-molecular polythene, blow-molding nylon, engineering plastics etc.), or other single or composites of same performance can be reached. For composite, such as but not limited to glass fibre, carbon fiber, boron fibre, graphite fibre, graphene fiber, carborundum is fine The reinforcing material such as dimension or aramid fiber.The material for constituting connector can also be other organic and/or inorganic material compounds, All kinds of fiberglass of such as glass fiber reinforcement unsaturated polyester, epoxy resin or phenolic resin as matrix resin composition.The thickness of connector Degree is not less than 0.005mm, it is preferable that thickness is 0.005mm-3mm, it is highly preferred that thickness is 0.01mm-2mm, more preferably, Thickness is 0.01mm-1mm, it is further preferred that thickness is 0.02mm-0.5mm.

The structure of connector can be set to ring-type, it is preferable that comprising at least one annulus, it is preferable that comprising at least two Individual annulus, can be donut, or non-concentric annulus, be connected by least two poles between annulus, and pole is from outer Ring inner ring center radiates, it is further preferred that comprising at least one oval annulus, it is further preferred that including at least two Oval annulus, different oval annulus have different radius of curvature, are connected by pole between annulus, it is further preferred that Including at least one Q-RING.Connecting-piece structure can also set slabbing, it is preferable that pierced pattern be arranged in sheet, more Preferably, area of the area of pierced pattern not less than the non-openwork part of connector.It should be noted that connecting in above description The material of part, thickness, structure can in any way be combined into different connectors.For example, cyclic adapting piece can have not Same thickness distribution, it is preferable that strut thickness is equal to annulus thickness, it is further preferred that strut thickness is more than annulus thickness, enters Preferably, the thickness of inner ring is more than the thickness of outer shroud to one step.

One of ordinary skill in the art can determine material, position and the company of connector according to different practical applications Mode etc. is connect, either above-mentioned different connector attribute is modified, is improved or is applied in combination, but these amendments and improvement Still within the scope of above description.For example, connector described above is not necessarily necessary, and panel can direct bridge joint On shell, it is also possible to bondd by glue and shell.It should be noted that the bone-conduction speaker vibration in practical application is produced Shape, size, ratio of first portion etc. are not limited to the content described in Fig. 2-A, Fig. 2-B or Fig. 3, and bone-conduction speaker is being examined Considering other may affect bone-conduction speaker sound qualitative factor, frequency multiplication sound, wearing mode of such as generation etc., this area Technical staff can make a certain degree of change according to the content described in figure.

The description for vibrating generation part-structure to bone-conduction speaker above is only merely specific example, is not construed as It is the embodiment of unique feasible.For clearly for one of skill in the art, after general principle is understood, may be not In the case of this principle, the concrete structure and connected mode to implementing vibration carries out various amendments and change, but this A little amendments and change are still within the scope of above description.For example, the coupling part 350 in Fig. 3 can be on panel 320 Part, using glue bonding on transducing head 330；Can also be a part for transducing head 330 (for example, on oscillating plate Bossing), using glue bonding on panel 320；Can also be an independent component, face is bonded in using glue simultaneously On plate 320 and transducing head 330.Certainly, the connected mode between coupling part 350 and panel 320 or transducing head 330 is simultaneously Bonding is not limited to, other connected modes that those skilled in the art can be known are also applied for the present invention, it is for instance possible to use Clamping or the mode of welding.Preferably, can be more excellent with directly by the way of glue bonding between panel 320 and shell 310 Selection of land, can be connected by the component similar to elastic component 340, it is further preferred that can be by adding in the outside of panel 320 The mode of vibration transfer layer (hereinafter will be described in detail) is connected on shell 310.It should be noted that coupling part 350 is The schematic diagram of the different inter-module connections of description, those skilled in the art can adopt has similar functions and of different shapes group Substituting, these substitute and change still within the protection domain of foregoing description part.

In step 103, sound passes to hearing system by transmission system.Transmission system can be by sound by medium Vibration is directly passed to hearing system, it is also possible to is included in sound transmittance process after certain process and passes to hearing again System.

For example, the panel of bone-conduction speaker will vibrate the hearing system that human body is passed to by tissue, change face The material of plate, the interaction force between contact area, shape and/or size, and panel and skin, can affect sound to lead to The transmission efficiency of medium is crossed, so as to affect tonequality.For example, under identical driving, the vibration of different size of panel transmission exists There are different distributions on wearer's binding face, and then the difference of volume and tonequality can be brought.Preferably, the area of panel is not less than 0.15cm², it is highly preferred that area is not less than 0.5cm², it is further preferred that area is not less than 2cm².Again for example, panel is changed Can device drive and vibrate, the bonding point of panel and transducing head is at the center of panel vibration, it is preferable that panel is around described The Mass Distribution in the centre of oscillation is uniform (i.e. the centre of oscillation is the physical centre of panel), it is highly preferred that making panel surround institute State the quality uneven distribution in vibration (i.e. the physical centre of panel is deviateed in the centre of oscillation).Again for example, oscillating plate can be with Be connected on multiple panels, the shape, material between multiple panels can with it is mutually the same can also be different, can phase between multiple panels Company can also be not attached to, and multiple panels transmit acoustical vibration using multiple approach, and the vibration transfer mode between different paths is mutually not Identical, the position for being delivered to panel also differs, and the vibration signal between different panels can generate relatively flat frequency with complementation Rate is responded.Again for example, one piece of larger oscillating plate of area is divided into into two pieces or the less oscillating plate of polylith area, can be effective Ground improves the uneven vibration that panel deformation causes in high frequency, makes frequency response even more ideal.

It should be noted that the physical attribute of panel, such as quality, size, shape, rigidity, vibration damping etc. all can shadows Ring the efficiency of panel vibration.Those skilled in the art can according to actual needs select the panel that suitable material is made, or Panel is molded into into different shapes using different moulds, it is preferable that the shape of panel can arrange rectangularity, circular or ellipse Circle, it is highly preferred that the shape of panel can be the edge of rectangle, circular or ellipse is cut after the figure that obtained Circular symmetry cutting (such as but not limited to, is obtained elliptical shape etc.) by shape, it is further preferred that panel can be arranged Into hollow out.Panel material mentioned here includes but is not limited to acrylonitrile-butadiene-styrene copolymer (ABS), poly- carbonic acid Ester (PC), polyamide (PA) and some metals or alloy (such as aluminium alloy), relevant parameter includes the relative density of material, Tensile strength, elastic modelling quantity, Rockwell hardness etc..Preferably, the relative density of panel material is 1.02-1.50, it is highly preferred that phase It is 1.14-1.45 to density, it is further preferred that relative density is 1.15-1.20.The tensile strength of panel is not less than 30MPa, It is highly preferred that tensile strength is 33MPa-52MPa, it is further preferred that tensile strength is not less than 60MPa.The bullet of panel material Property modulus can be in 1.0GPa-5.0GPa, it is highly preferred that elastic modelling quantity is in 1.4GPa-3.0GPa, it is further preferred that bullet Property modulus is in 1.8GPa-2.5GPa.Similar, the hardness (Rockwell hardness) of panel material can be 60-150, it is highly preferred that firmly Degree can be 80-120, it is further preferred that hardness can be 90-100.Particularly, while considering that panel material and stretching are strong Degree, can be that relative density is 1.02-1.1, and tensile strength is 33MPa-52MPa, it is highly preferred that the relative density of panel material For 1.20-1.45, tensile strength is 56-66MPa.

In some other embodiment, the panels outside of bone-conduction speaker is wrapped in vibration transfer layer, vibrates transfer layer Contact with skin, the acoustical vibration of generation is passed to tissue by the vibration system of panel and vibration transfer layer composition.It is preferred that Ground, panels outside wraps up one layer of vibration transfer layer, it is highly preferred that panels outside wrapped multiple vibration transfer layer；Vibration transfer layer Can be made up of one or more material, the material of difference vibration transfer layer is constituted can be with identical, it is also possible to different；Multilayer is shaken Can be to be overlapped mutually on the vertical direction of panel, or begin to rehearse on the direction upper berth of panel-level between dynamic transfer layer Row, or the combination of both the above arrangement mode.The area of vibration transfer layer can be set as different sizes, it is preferable that shake The area of dynamic transfer layer is not less than 1cm², it is highly preferred that the area of vibration transfer layer is not less than 2cm², it is further preferred that vibration The area of transfer layer is not less than 6cm²。

Vibration transfer layer composition can be with certain adsorptivity, flexibility, material chemically, such as plastics (for example But it is not limited to high-molecular polythene, blow-molding nylon, engineering plastics etc.), rubber, or other lists of same performance can be reached One or composite.For the species of rubber, such as but not limited to versatility rubber and Special type rubber.General purpose rubber is included But it is not limited to natural rubber, isoprene rubber, butadiene-styrene rubber, butadiene rubber, neoprene etc..Special type rubber is included but not limited again In nitrile rubber, silicon rubber, fluorubber, polysulfide rubber, polyurethane rubber, chlorohydrin rubber, ACM, expoxy propane rubber Glue etc..Wherein, butadiene-styrene rubber is included and is not limited to SBR of emulsion polymerization and solution polymerization styrene-butadiene rubber.For composite wood Material, such as but not limited to glass fibre, carbon fiber, boron fibre, graphite fibre, fiber, graphene fiber, silicon carbide fibre or virtue The reinforcing materials such as synthetic fibre fiber.Can also be other organic and/or inorganic material compounds, for example glass fiber reinforcement is unsaturated All kinds of fiberglass of polyester, epoxy resin or phenolic resin as matrix resin composition.Other can be used to make the material for vibrating transfer layer also Including the combination of one or more in silica gel, polyurethane (Poly Urethane), Merlon (Poly Carbonate).

The presence of vibration transfer layer can affect the frequency response of system, change the tonequality of bone-conduction speaker, while The protective effect to shell interior element can be played.For example, vibrating transfer layer can change the mode of vibration of panel so that system entirety Frequency response it is gentler.The mode of vibration of panel be subject to the connected mode of panel attribute itself, panel and oscillating plate, panel and The impact of the factors such as connected mode, the vibration frequency of vibration transfer layer.Panel attribute itself include but is not limited to panel quality, Size, shape, rigidity, vibration damping etc..Preferably, can be using panel in uneven thickness (such as but not limited to, in panel Heart thickness is more than edge thickness).The connected mode of panel and oscillating plate includes but is not limited to glue bonding, clamping or welding etc.； The connection of panel and vibration transfer layer includes but is not limited to glue connection；Different vibration frequencies can correspond to the different vibration of panel Mode, including the translation and different degrees of torsion translation of panel entirety, select have specific shaking in particular frequency range The panel of flowing mode can change the tonequality of bone-conduction speaker.Preferably, specific frequency range mentioned here can be 20Hz-20000Hz, it is highly preferred that frequency range can be 400Hz-10000Hz, it is further preferred that frequency range can be 500Hz-2000Hz, still further preferably, frequency range can be 800Hz-1500Hz.

Preferably, vibration transfer layer described above is wrapped in panels outside, constitutes a side of vibration unit.Shake Zones of different is different to the transmission effect of vibration on dynamic transfer layer.

Used as a specific embodiment, Fig. 4-A and 4-B are respectively the front views and side that panel is connected with vibration transfer layer View.Wherein, panel 401 is bondd with vibration transfer layer 403 by glue 402, and the two ends of panel 401, face are located at glue bonding Plate 401 is located at the inside the shell that vibration transfer layer 403 and housing 404 are formed.

Can completely paste using glue between panel and vibration transfer layer, then equally change the quality, greatly of panel The attributes such as little, shape, rigidity, vibration damping, mode of oscillation, also cause vibration transmission efficiency higher；Between panel and transfer layer Only can also be bondd using paste portion, then panel and transmission interlayer non-stick patch region have gas conduction, can strengthen low frequency The transmission of vibration, improves the effect of low frequency in sound, it is preferable that glue area accounts for the 1%-98% of panel area, it is highly preferred that Glue area accounts for the 5%-90% of panel area, and more preferably, glue area accounts for the 10%-60% of panel area, further Preferably, glue area accounts for the 20%-40% of panel area；Glue bonding can not also be used between panel and transfer layer, then The vibration transmission efficiency of panel and transfer layer can also change the sound of bone-conduction speaker different from the use of the situation of glue bonding Matter.In the particular embodiment, changing the bonding method of glue can change the vibration side of corresponding assembly in bone-conduction speaker Formula, so as to change generation and the transmission effect of sound.Further, the property of glue can also affect the sound of bone-conduction speaker Matter, such as glue hardness of water, shear strength, tensile strength and ductility etc..For instance, it is preferred that glue tensile strength is not less than 1MPa, it is highly preferred that tensile strength is not less than 2MPa, it is further preferred that tensile strength is not less than 5MPa；Preferably, glue Elongation at break be 100%-500%, it is highly preferred that elongation at break is 200%-400%；Preferably, the shearing of glue Intensity is not less than 2MPa, it is highly preferred that shear strength is not less than 3MPa；Preferably, the shore hardness of glue is more excellent in 25-30 Selection of land, shore hardness is in 30-50.A kind of glue can be used, it is also possible to be applied in combination in the glue of different attribute.Glue and face Adhesion strength between plate and glue and plastic cement can also be arranged on certain limit, such as but not limited to, in 8MPa-14MPa.Should When it is noted that in embodiment vibration transmission layer material be not limited to silica gel, it would however also be possible to employ plastics, biomaterial or other With certain adsorptivity, flexibility, material chemically.Those skilled in the art can also determine according to actual needs to select glue The type and attribute of water, and the panel material with glue bonding and vibration transmission layer material, determine that to a certain extent bone is passed Lead the tonequality of loudspeaker.

Fig. 5 is the specific embodiment that bone-conduction speaker vibration produces each part connected mode in part.Transducing is filled Put 510 to be connected on shell 520, bondd by glue 550 between panel 530 and vibration transfer layer 540, vibrate transfer layer 540 Edge be connected with housing 520.In different embodiments, distribution, hardness or the quantity for changing glue 550 can be passed through, or Change hardness of transfer layer 540 etc. to change the frequency response of bone-conduction speaker, so as to change tonequality.Preferably, panel and Vibration transmission interlayer can not spreading glue, it is highly preferred that panel and vibration transmission interlayer can fill glue, further preferably Ground, panel and vibration transmission interlayer subregion spreading glue, still further preferably, panel and vibration transmission interlayer smear glue The region area of water is not more than the area of panel.

Those skilled in the art can according to actual needs determine the quantity from glue, so as to reach regulation loudspeaker The effect of tonequality.As shown in fig. 6, in one embodiment, reflect different glue connected modes to bone-conduction speaker The impact of frequency response.Three curves correspond to respectively transfer layer without friction and glue, glue not painted fully between vibration transfer layer and panel Frequency response during glue is filled between water, and vibration transfer layer and panel.As can be seen that relative to the situation for filling glue, When coating a small amount of glue or not cementing between vibration transfer layer and panel, the resonant frequency of bone-conduction speaker can be to low frequency Skew.By the bonding situation of glue between vibration transfer layer and panel, shadow of the vibration transfer layer to vibrational system can be reflected Ring.Therefore, the bonding mode of glue is changed, the frequency response curve that can cause bone-conduction speaker is changed significantly.

Skilled artisan can according to actual frequency response demand, adjustment and improve glue bonding mode, Quantity, so as to improve the tonequality of system.Similar, in another embodiment, Fig. 7 reflects the hardness of different vibration transfer layers Impact to vibration response curve.Solid line is that the vibratory response corresponding to the bone-conduction speaker using harder transfer layer is bent Line, dotted line is the vibration response curve corresponding to the bone-conduction speaker using softer transfer layer.As can be seen that using difference The vibration transfer layer of hardness can make bone-conduction speaker obtain different frequency responses.The hardness of vibration transfer layer is bigger, passes The ability for passing dither is stronger；The hardness of vibration transfer layer is less, then the ability for transmitting low-frequency vibration is stronger.Select different materials The vibration transfer layer (being not limited to silica gel, plastics etc.) of material can obtain different tonequality.For example, 45 degree are used on bone-conduction speaker The vibration transfer layer that silica gel is made can obtain preferable bass effect, and the vibration transfer layer made using 75 degree of silica gel can be obtained Obtain preferable high pitch effect.Low frequency mentioned here refers to the sound less than 500Hz, and intermediate frequency refers to 500Hz-4000Hz models The sound for enclosing, high frequency refers to the sound more than 4000Hz.

Certainly, description of the above on glue and vibration transfer layer is only a kind of bone-conduction speaker tonequality of can affecting Embodiment, is not construed as the embodiment of unique feasible.Obviously, for one of skill in the art, understanding bone is affected After the general principle of conduction speaker tonequality, may be in the case of without departing substantially from this principle, to vibrating on bone-conduction speaker Produce each device and connected mode in part to be adjusted and change, but these adjustment and change are still in guarantor described above Within the scope of shield.For example, the material for vibrating transfer layer can be arbitrary, or the use habit customization according to user 's.Using the glue after solidification with different hardness between vibration transfer layer and panel, it is also possible to the sound to bone-conduction speaker Matter produces impact.Additionally, the quality that the thickness for increasing vibration transfer layer can be equivalent in the vibrational system that increased composition, The effect of the resonant frequency decline for being system can be reached.Preferably, the thickness of transfer layer is 0.1mm-10mm, it is highly preferred that Thickness is 0.3mm-5mm, and more preferably, thickness is 0.5mm-3mm, it is further preferred that thickness is 1mm-2mm.Transfer layer Tensile strength, viscosity, hardness, tearing strength, elongation etc. also can produce impact to the tonequality of system.The stretching of transmission layer material Intensity refers to power required on unit range when causing transfer layer sample to tear, it is preferred that tensile strength is 3.0MPa-13MPa, It is highly preferred that tensile strength is 4.0MPa-12.5MPa, it is further preferred that tensile strength is 8.7MPa-12MPa.Preferably, The shore hardness of transfer layer is 5-90, it is highly preferred that shore hardness is 10-80, it is further preferred that shore hardness is 20-60. The elongation of transfer layer refers to the percentage that transmission fault rupture phase pair is increased with raw footage, it is preferable that elongation is in 90%- Between 1200%, it is highly preferred that elongation is between 160%-700%, it is further preferred that elongation is in 300%-900% Between.The tearing strength of transfer layer refers to the opposing for applying to hinder that otch or indentation expand during strength on the transfer layer for have otch Power, it is preferable that tearing strength is between 7kN/m-70kN/m, it is highly preferred that tearing strength is between 11kN/m-55kN/m, enters Preferably, tearing strength is between 17kN/m-47kN/m for one step.

Physics in the vibrational system that panel described above is constituted with vibration transfer layer, except changing panel and transfer layer Attribute, and the aspect such as bonding mode of panel and vibration transfer layer, it is also possible to change bone-conduction speaker in terms of other Performance.

A kind of well-designed vibration comprising vibration transfer layer produces part can effectively further reduce osteoacusis Loudspeaker leaks sound.Preferably, Lou sound can be reduced in vibration transmission layer surface punching.One embodiment is as shown in figure 8, vibration is passed Pass layer 840 and lead to glue 850 and bond with panel 830, vibrate and passed higher than vibration with the bonded areas degree of convexity of panel on transfer layer Adhesive free region on layer 840 is passed, is a cavity below non-bonded region.Non-bonded region and shell on vibration transfer layer 840 820 surfaces offer respectively draws acoustic aperture 860.Preferably, open up part and draw the non-bonded region of acoustic aperture and do not contact with user.One Aspect, drawing acoustic aperture 860 can effectively reduce non-bonded region area on vibration transfer layer 840, can cause to vibrate transfer layer Inner air and outer air is penetrating, and reduction inner and outer air pressure is poor, so as to reduce the vibration of non-bonded region；On the other hand, drawing acoustic aperture 860 can be by The inner air of shell 820 vibrates the outside that formed sound wave leads to shell 820, and with the vibration of shell 820 the outer air of shell is promoted The leakage speech ripple cancellation for being formed, to reduce the amplitude of Lou speech ripple.Specifically, bone-conduction speaker any point in space Leakage sound size is proportional to acoustic pressure P at the point,

Wherein,

P=P₀+P₁+P₂ (1)

P₀It is acoustic pressure that shell (including the part that do not contact with skin on vibration transfer layer) is generated in above-mentioned point, P₁It is The acoustic pressure of sound that acoustic aperture transmitted in above-mentioned point, P are drawn in shell side₂It is to vibrate draw the sound that acoustic aperture is transmitted on transfer layer Sound above-mentioned point acoustic pressure, P₀、P₁、P₂It is respectively：

Wherein, k represents wave vector, ρ₀Atmospheric density is represented, ω represents the angular frequency of vibration, and R (x ', y ') represent one in sound source The point distance of a bit, S in space₀It is the shell surface domain not contacted with face, S₁It is perforate face domain that acoustic aperture is drawn in shell side, S₂It is to vibrate the perforate face domain for drawing acoustic aperture on transfer layer, W (x, y) represents the strength of sound source of unit area,Represent that different sound sources exist The phase difference of the acoustic pressure that space a little produces.It should be noted that there is the part area not contacted with skin on vibration transfer layer Domain (such as in Fig. 8, vibrates the fringe region drawn residing for acoustic aperture 860 on transfer layer 840), and the region is subject to panel and shell The impact of vibration and produce vibration, so as to radiate sound to external world, above mentioned shell surface domain should pass comprising such vibration Pass the part not contacted with skin on layer.The acoustic pressure (when angular frequency is ω) of any point can be expressed as in space：

Our target is the value for reducing P as far as possible, so as to reduce the effect of leakage sound.In actual use, lead to Cross adjustment and draw the size and number of acoustic aperture and can adjust and draw the position of acoustic aperture and can adjust phase place with adjustment factor A1, A2 Value.Bone-conduction speaker sound can be affected in the vibrational system for understanding panel, transducing head, vibration transfer layer and shell composition After the principle of matter, those skilled in the art can adjust and draw the shape of acoustic aperture, open up position, quantity, chi according to actual needs Damping etc. on very little and hole, so as to reach the purpose for suppressing leakage sound.For example, it can be one or more to draw acoustic aperture, preferably had many It is individual.Draw acoustic aperture for what is laid in shell side face ring shape, each acoustic aperture quantity of drawing for laying region can be one or more, example Such as 4-8.The shape for drawing acoustic aperture can be circular, oval, rectangle or strip.Draw acoustic aperture on one bone-conduction speaker Acoustic aperture can be drawn using shape identical, it would however also be possible to employ various combinations for drawing acoustic aperture of different shapes.For example, transfer layer is vibrated With the acoustic aperture of drawing that different shape and quantity are laid respectively in shell side, to vibrate and draw acoustic aperture number density more than shell on transfer layer Acoustic aperture number density is drawn in side.Again for example, lay on vibration transfer layer and pay multiple apertures, vibration transmission can be effectively reduced The area that layer does not divide with skin contact part, so as to the leakage sound for reducing being produced by the part.Again for example, transfer layer/shell side is vibrated Drawing on face increase in acoustic aperture damping material or sound-absorbing material, can further add high inhibition to leak the purpose of sound.Further, institute State to draw acoustic aperture and be extended to other and be easy to that the air vibration of inside the shell is transferred out the material or structure of shell.For example, using phase Position adjusts material (such as but not limited to sound-absorbing material) as the portion of material of shell so as to the air vibration phase place that transfers out with The vibration phase of shell other parts in the range of 90 ° to 270 °, so as to play a part of sound cancellation.Yet further, lead to Overregulate the connected mode between transducing head and shell, thus it is possible to vary shell other parts vibration phase place, also can make its with Draw the phase difference of the sound that acoustic aperture is transferred out in the range of 90 ° to 270 °, so as to play a part of sound cancellation.For example, transducing Flexible Connector is adopted between device and shell, for the material of connector, such as but not limited to, steel are (such as but not limited to not Rust steel, carbon steel etc.), alloy in lightweight (such as but not limited to aluminium alloy, beryllium copper, magnesium alloy, titanium alloy etc.), plastic cement (for example but Be not limited to high-molecular polythene, blow-molding nylon, engineering plastics etc.), or can reach same performance other are single or multiple Condensation material.For composite, such as but not limited to glass fibre, carbon fiber, boron fibre, graphite fibre, graphene fiber, carbon The reinforcing material such as SiClx fiber or aramid fiber.The material for constituting connector can also be other organic and/or inorganic material All kinds of fiberglass of compound, such as glass fiber reinforcement unsaturated polyester, epoxy resin or phenolic resin as matrix resin composition.Connection The thickness of part is not less than 0.005mm, it is preferable that thickness is 0.005mm-3mm, it is highly preferred that thickness is 0.01mm-2mm, then it is excellent Selection of land, thickness is 0.01mm-1mm, it is further preferred that thickness is 0.02mm-0.5mm.The structure of connector can be set to Ring-type, it is preferable that comprising at least one annulus, it is preferable that comprising at least two annulus, can be donut, or Non-concentric annulus, is connected between annulus by least two poles, and pole radiates from outer shroud to inner ring center, it is further preferred that Comprising at least one oval annulus, it is further preferred that comprising at least two oval annulus, different oval annulus have different Radius of curvature, is connected, it is further preferred that including at least one Q-RING between annulus by pole.Connecting-piece structure Can be set to sheet, it is preferable that pierced pattern is set in sheet, it is highly preferred that the area of pierced pattern is not less than connection The area of the non-openwork part of part.It should be noted that the material of connector, thickness, structure can be with arbitrarily sides in above description Formula is combined into different connectors.For example, cyclic adapting piece can have different thickness distributions, it is preferable that strut thickness etc. In annulus thickness, it is further preferred that strut thickness is more than annulus thickness, it is further preferred that the thickness of inner ring is more than outer shroud Thickness.The description for drawing acoustic aperture with regard to shell laying comes across the Chinese Patent Application No. of the submission of on January 6th, 2014 Disclose in 201410005804.0, entitled " a kind of method and bone-conduction speaker that suppress bone-conduction speaker to leak sound ", The patent document is quoted in full and is described herein by reference.

It is above one embodiment of the present of invention to the description of sound-absorbing hole, do not constitute is improving sound to bone-conduction speaker Matter, the restriction for suppressing the aspects such as leakage sound, the inventor of this area can be by carrying out various repairing to embodiment described above Just and improve, these amendment and improve still within protection domain described above.For instance, it is preferred that draw acoustic aperture only opening It is located on vibration transfer layer, it is highly preferred that draw the region that acoustic aperture only starts not overlapped with panel in vibration transfer layer, it is further excellent Selection of land, draws acoustic aperture and is opened on the region not contacted with user, more preferably, draws acoustic aperture and is opened on the inside of vibration unit Chamber.Again for example, drawing acoustic aperture can also be opened in outer shell bottom wall, and the acoustic aperture quantity of drawing for being opened in diapire can be one, arrange In the bottom wall the heart, or multiple, is arranged about bottom wall central and is annularly circumferentially uniformly distributed.Again for example, drawing acoustic aperture can To be opened on side wall of outer shell, the acoustic aperture quantity of drawing for being opened in side wall of outer shell can be one, or it is multiple, in circumferential equal Even distribution.

In step 104, the tonequality that human feeling arrives is also relevant with the hearing system of human body, and different crowd may be to different frequencies The sensitivity of the sound of rate scope is different.In certain embodiments, the sensitivity of the sound to different frequency of human body can To be reflected by equal loudness contour.Some crowds are insensitive to the sound in particular frequency range in voice signal, then show The response intensity of respective frequencies is less than the response intensity in other frequencies in equal loudness contour.For example, some crowds are to high frequency sound Message number is insensitive, i.e., show as being less than the intensity at other frequencies in the intensity response of corresponding high-frequency signal in equal loudness contour Response；Some crowd's centering low frequency sound signals are insensitive, then show as in equal loudness contour in the strong of corresponding middle low frequency signal Degree response is less than the intensity response at other frequencies.Low frequency mentioned here refers to the sound less than 500Hz, and intermediate frequency is referred to The sound of 500Hz-4000Hz scopes, high frequency refers to the sound more than 4000Hz.It will be apparent to those skilled in the art that right above In the description of human auditory's sensitivity, " equal loudness contour " can be replaced with similar word, for example, " contour of equal loudness ", " hearing Response curve " etc..In fact, human body can also regard a kind of frequency response of sound as to hearing sensitivity, in the present invention In each embodiment description in, with reference to human body to the sensitivity of sound and the frequency response of bone-conduction speaker, final body Reveal the tonequality of bone-conduction speaker.

From the figure 3, it may be seen that in bone-conduction speaker vibrational system transducing head 330 mode of vibration, and with the phase of shell 310 Mode even can produce impact to the audio of system.Preferably, transducing head comprising oscillating plate, vibration-transmitting plate, one group Coil and a magnetic circuit system, it is highly preferred that transducing head is filled comprising the complex vibration being made up of multiple oscillating plates and vibration-transmitting plate Put.System produces the impact of the physical property of the frequency response plate vibrated and vibration-transmitting plate of sound, selects specific oscillating plate Size, shape, material, thickness and vibration transfer mode with vibration-transmitting plate etc., can produce the audio for meeting actual requirement.

Shown in the enforcement of one compound vibrating device such as Fig. 9-A and Fig. 9-B, including：Vibration-transmitting plate 901 and oscillating plate 902 The complex vibration part of composition, the vibration-transmitting plate 901 is set to one first torus 913, and arranges in the first annulus body Three the first poles 914 of oriented center influx, its influx center is fixed with the center of the oscillating plate 902.It is described to shake The center of dynamic plate 902 is the groove 920 for coordinating the influx center and the first pole.The oscillating plate 902 is arranged to be had and institute State the second different torus 921 of the radius of vibration-transmitting plate 901, and three second of thick thickness different from first pole 914 Bar 922, the first pole 914 and second pole 922 described in assembling is staggered settings, and it is in 60 degree of angles that can be, but not limited to.

Above-mentioned first pole and the second pole can adopt straight-bar or be arranged to other shapes for meeting particular requirement, Pole number could be arranged to two or more, using symmetrically or non-symmetrically arranging, to meet wanting for the aspects such as economic, practical effect Ask.The vibration-transmitting plate 901 has thin thickness and can increase elastic force, and vibration-transmitting plate 901 is the groove 920 for being stuck in oscillating plate 902 Center.The downside of the second torus 921 for being bonded in oscillating plate 902 is provided with voice coil loudspeaker voice coil 908.Compound vibrating device also includes base plate 912, toroidal magnet 910 is provided with the base plate 912, it has been arranged concentrically inner magnet 911 in the toroidal magnet 910；Institute The top surface for stating inner magnet 911 is provided with interior magnetic conductive board 909, while being provided with annular magnetic conductive board on the toroidal magnet 910 907, be fixedly installed packing ring 906 in the top of the annular magnetic conductive board 907, the first torus 913 of the vibration-transmitting plate 901 with should Packing ring 906 is mutually fixedly connected.By a panel 930 and external connection, the panel 930 is connected institute the whole compound vibrating device The influx center of vibration-transmitting plate 901 is stated, and is fixed in the center of vibration-transmitting plate 901 and oscillating plate 902.

The compound vibrating device constituted using oscillating plate and vibration-transmitting plate, obtains frequency response as shown in Figure 10, by double Complex vibration generate two resonance peaks, by the size and the parameter such as material that adjust two parts, allow resonance peak to move Dynamic, the resonance peak of low frequency is moved to more low frequency, and the resonance peak of high frequency is to more high-frequency mobile, it is preferable that the stiffness factor of oscillating plate More than the stiffness factor of vibration-transmitting plate.The frequency response curve of the dotted line that may finally be fitted to shown in Figure 10, that is, preferable shape Flat frequency response under state, the scope of these resonance peaks can be arranged on the audible sound of human ear frequency range it It is interior, it is also possible to not wherein, it is preferable that two resonance peaks are not in the frequency range of the audible sound of human ear；More preferably Ground, within the frequency range of the audible sound of human ear, another resonance peak is in the audible sound of human ear for a resonance peak Frequency range outside；It is furthermore preferred that resonance peak position is not higher than 30000Hz；It is furthermore preferred that two resonance peaks all can in human ear In the frequency range of the sound heard；And it is further preferred that two resonance peaks are all in the frequency of the audible sound of human ear In the range of rate, and its crest frequency is between 80Hz-18000Hz；It is further preferred that two resonance peaks are all audible in human ear In the frequency range of the sound for arriving, and its peak value is between 200Hz-15000Hz；It is further preferred that two resonance peaks are all In the frequency range of the sound that can be arrived in human ear, and its peak value is between 500Hz-12000Hz；It is further preferred that two In the frequency range of the sound that resonance peak all can be arrived in human ear, and its peak value is between 800Hz-11000Hz.The peak value of resonance peak Frequency preferably have certain gap, for example, the peak value difference at least 500Hz of two resonance peaks；Preferably, two resonance peaks Peak value differs at least 1000Hz；It is further preferred that the peak value difference at least 2000Hz of two resonance peaks；It is further excellent again Selection of land, the peak value difference at least 5000Hz of two resonance peaks.In order to reach reasonable effect, two resonance peaks can all in people Within the ear range of audibility, and the crest frequency difference at least 500Hz of resonance peak；Preferably, two resonance peaks can all in people Within the ear range of audibility, the peak value difference at least 1000Hz of two resonance peaks；It is highly preferred that two resonance peaks can all in human ear Within the range of audibility, the peak value difference at least 1000Hz of two resonance peaks；Still further preferably, two resonance peaks can all exist Within the human ear range of audibility, the peak value difference at least 2000Hz of two resonance peaks；And it is further preferred that two resonance peaks Can all within the human ear range of audibility, the peak value difference at least 3000Hz of two resonance peaks；Can with it is further preferred that Two resonance peaks can all within the human ear range of audibility, the peak value difference at least 4000Hz of two resonance peaks.Two resonance peaks In can be with one within the human ear range of audibility, another is outside the human ear range of audibility, and the peak value frequency of two resonance peaks Rate differs at least 500Hz；Preferably, a resonance peak is within the human ear range of audibility, another outside the human ear range of audibility, And the crest frequency difference at least 1000Hz of two resonance peaks；It is highly preferred that a resonance peak is within the human ear range of audibility, Another is outside the human ear range of audibility, and the crest frequency difference at least 2000Hz of two resonance peaks；It is further preferred that Within the human ear range of audibility, another is outside the human ear range of audibility, and the peak value frequency of two resonance peaks for one resonance peak Rate differs at least 3000Hz；It is further preferred that a resonance peak is within the human ear range of audibility, another is audible in human ear Outside scope, and the crest frequency difference at least 4000Hz of two resonance peaks.Two resonance peaks can all in frequency 5Hz- Between 30000Hz, and the crest frequency difference at least 400Hz of two resonance peaks；Preferably, two resonance peaks can all in frequency Between rate 5Hz-30000Hz, and the crest frequency difference at least 1000Hz of two resonance peaks；It is highly preferred that two resonance peaks Can all between frequency 5Hz-30000Hz, and the crest frequency of two resonance peaks differs at least 2000Hz；Further preferably Ground, two resonance peaks can all between frequency 5Hz-30000Hz, and the crest frequency of two resonance peaks is differed at least 3000Hz；It is further preferred that two resonance peaks can all between frequency 5Hz-30000Hz, and two resonance peaks Crest frequency differs at least 4000Hz.Two resonance peaks can all between frequency 20Hz-20000Hz, and two resonance peaks Crest frequency difference at least 400Hz；Preferably, two resonance peaks can all between frequency 20Hz-20000Hz, and two The crest frequency difference at least 1000Hz of individual resonance peak；It is highly preferred that two resonance peaks can all in frequency 20Hz-20000Hz Between, and the crest frequency difference at least 2000Hz of two resonance peaks；It is further preferred that two resonance peaks can all in frequency Between rate 20Hz-20000Hz, and the crest frequency difference at least 3000Hz of two resonance peaks；It is further preferred that two Resonance peak can all between frequency 20Hz-20000Hz, and the crest frequency of two resonance peaks differs at least 4000Hz.Two Individual resonance peak can all between frequency 100Hz-18000Hz, and the crest frequency of two resonance peaks differs at least 400Hz； Preferably, two resonance peaks can all between frequency 100Hz-18000Hz, and the crest frequency of two resonance peaks differ to Few 1000Hz；It is highly preferred that two resonance peaks can all between frequency 100Hz-18000Hz, and the peak of two resonance peaks Value frequency phase-difference at least 2000Hz；It is further preferred that two resonance peaks can all between frequency 100Hz-18000Hz, and And the crest frequency difference at least 3000Hz of two resonance peaks；It is further preferred that two resonance peaks can all in frequency Between 100Hz-18000Hz, and the crest frequency difference at least 4000Hz of two resonance peaks.Two resonance peaks can all in frequency Between rate 200Hz-12000Hz, and the crest frequency difference at least 400Hz of two resonance peaks；Preferably, two resonance peaks can With all between frequency 200Hz-12000Hz, and the crest frequency difference at least 1000Hz of two resonance peaks；It is highly preferred that Two resonance peaks can all between frequency 200Hz-12000Hz, and the crest frequency of two resonance peaks is differed at least 2000Hz；It is further preferred that two resonance peaks can all between frequency 200Hz-12000Hz, and two resonance peaks Crest frequency differs at least 3000Hz；It is further preferred that two resonance peaks can all frequency 200Hz-12000Hz it Between, and the crest frequency difference at least 4000Hz of two resonance peaks.Two resonance peaks can all in frequency 500Hz-10000Hz Between, and the crest frequency difference at least 400Hz of two resonance peaks；Preferably, two resonance peaks can all in frequency Between 500Hz-10000Hz, and the crest frequency difference at least 1000Hz of two resonance peaks；It is highly preferred that two resonance peaks Can all between frequency 500Hz-10000Hz, and the crest frequency of two resonance peaks differs at least 2000Hz；It is further excellent Selection of land, two resonance peaks can all between frequency 500Hz-10000Hz, and the crest frequency of two resonance peaks is differed at least 3000Hz；It is further preferred that two resonance peaks can all between frequency 500Hz-10000Hz, and two resonance peaks Crest frequency difference at least 4000Hz.The resonance response scope of loudspeaker has thus been widened, the tonequality of condition has been met. It should be noted that during actual use, multiple vibration-transmitting plates and oscillating plate can be arranged, multi-layer vibration structure is formed, Different Hz-KHzs are corresponded to respectively, realizes that gamut full range rings the loudspeaker vibration of high-quality, or make frequency response curve Use requirement is reached in some particular frequency ranges.For example, in ossiphone, require to meet normal good hearing, The transducing that can be constituted with one or more oscillating plates of selective resonance frequency in the range of 100Hz-10000Hz, vibration-transmitting plate is filled Put.The description of the compound vibrating device constituted with regard to oscillating plate and vibration-transmitting plate comes across the China of the submission of on December 23rd, 2011 specially Disclose in sharp application number 201110438083.9, the patent of entitled " a kind of bone-conduction speaker and its compound vibrating device " In application, the patent document is quoted in full and is described herein by reference.

As shown in figure 11, in another embodiment, an oscillating plate 1102, the first vibration-transmitting plate are included in vibrational system 1103 and second vibration-transmitting plate 1101, the vibration-transmitting plate 1101 of oscillating plate 1102 and second is fixed on shell 1119 by the first vibration-transmitting plate 1103 On, the compound vibration systems being made up of oscillating plate 1102, the first vibration-transmitting plate 1103 and the second vibration-transmitting plate 1101 can be produced much In two resonance peaks, more flat frequency response curve is produced in the hearing system range of audibility, raised so as to improve osteoacusis The tonequality of sound device.Vibrational system equivalent model is as shown in Figure 12-A：

Wherein, 1201 is shell, and 1202 is panel, and 1203 is voice coil loudspeaker voice coil, and 1204 is magnetic circuit vibration, and 1205 is that the first biography is shaken Piece, 1206 is the second vibration-transmitting plate, and 1207 is oscillating plate, wherein, the first vibration-transmitting plate, the second vibration-transmitting plate and oscillating plate are abstracted into and contain Elasticity and the element of damping, shell, panel, voice coil loudspeaker voice coil and magnetic circuit system can be abstracted into equivalent mass block.The vibration side of system Journey can be expressed as：

m₆x″₆+R₆(x₆-x₅)′+k₆(x₆-x₅)=F (6)

m₇x″₇+R₇(x₇-x₅)′+k₇(x₇-x₅)=- F (7)

m₅x″₅-R₆(x₆-x₅)′-R₇(x₇-x₅)′+R₈x′₅+k₈x₅-k₆(x₆-x₅)-k₇(x₇-x₅)=0 (8)

Wherein F be driving force, k₆For the equivalent stiffness coefficient of the second vibration-transmitting plate, k₇For the equivalent stiffness coefficient of oscillating plate, k₈ For the equivalent stiffness coefficient of the first vibration-transmitting plate, R₆For the equivalent damping of the second vibration-transmitting plate, R₇For the equivalent damping of oscillating plate, R₈For The equivalent damping of the first vibration-transmitting plate, m₅For the quality of panel, m₆For the quality of magnetic circuit system, m₇For voice coil loudspeaker voice coil quality, x₅For panel position Move, x₆For magnetic circuit system displacement, x₇For voice coil loudspeaker voice coil displacement.The amplitude that panel 1202 can then be drawn is：

Wherein, ω represents the angular frequency of vibration, f₀Represent unit driving force.

Vibration is passed to user by the vibrational system of bone-conduction speaker by panel, from formula (9), system Vibration efficiency is related to oscillating plate, the first vibration-transmitting plate, the stiffness factor of the second vibration-transmitting plate and vibration damping, it is preferable that oscillating plate Stiffness factor k₇More than the second Oscillating Coefficients k₆, the stiffness factor k of oscillating plate₇More than the first Oscillating Coefficients k₈.Wherein, have The resonance peak number that triple compound vibration systems of one vibration-transmitting plate are produced is produced more than the compound vibration systems without the first vibration-transmitting plate Resonance peak, it is preferable that at least three resonance peaks；It is highly preferred that at least one resonance peak is not in the audible model of human ear Within enclosing；It is furthermore preferred that resonance peak position is not higher than 30000Hz；It is highly preferred that resonance peak all the audible scope of human ear it It is interior；It is further preferred that resonance peak is all within the scope of human ear is audible, and its crest frequency is not higher than 18000Hz；More It is further preferred that resonance peak is all in the frequency range of the audible sound of human ear, and its peak value 100Hz-15000Hz it Between；It is further preferred that in the frequency range of sound that all can arrive in human ear of resonance peak, and its peak value is in 200Hz- Between 12000Hz；It is further preferred that in the frequency range of sound that all can arrive in human ear of resonance peak, and its peak value exists Between 500Hz-11000Hz.The frequency of the peak value of resonance peak preferably has certain gap, for example, at least there are two resonance peaks Peak value difference at least 200Hz；Preferably, at least there is the peak value difference at least 500Hz of two resonance peaks；It is highly preferred that extremely There is the peak value difference at least 1000Hz of two resonance peaks less；Still further preferably, at least there is the peak value of two resonance peaks Difference at least 2000Hz；Again it is further preferred that at least there is the peak value difference at least 5000Hz of two resonance peaks.In order to reach To reasonable effect, all within the human ear range of audibility, and can at least there is the peak value frequency of two resonance peaks in resonance peak Rate differs at least 500Hz；Preferably, all within the human ear range of audibility, can at least there is the peak of two resonance peaks in resonance peak Value difference at least 1000Hz；It is highly preferred that all within the human ear range of audibility two resonance peaks can at least be present in resonance peak Peak value differs at least 1000Hz；Still further preferably, resonance peak all within the human ear range of audibility can at least have two The peak value difference at least 2000Hz of resonance peak；And it is further preferred that resonance peak can all within the human ear range of audibility, At least there is the peak value difference at least 3000Hz of two resonance peaks；Can be with it is further preferred that resonance peak can all in people Within the ear range of audibility, at least there is the peak value difference at least 4000Hz of two resonance peaks.There can be two in resonance peak in people Within the ear range of audibility, at least there is the crest frequency difference of two resonance peaks in another outside the human ear range of audibility At least 500Hz；Preferably, two resonance peaks are within the human ear range of audibility, another resonance peak outside the human ear range of audibility, And at least there is the crest frequency difference at least 1000Hz of two resonance peaks；It is highly preferred that two resonance peaks are audible in human ear Within the scope of, at least there is the crest frequency difference of two resonance peaks at least outside the human ear range of audibility in another 2000Hz；It is further preferred that two resonance peaks are within the human ear range of audibility, another outside the human ear range of audibility, and And at least crest frequency difference at least 3000Hz of two resonance peaks of presence；It is further preferred that two resonance peaks are in human ear Within the range of audibility, another outside the human ear range of audibility, and at least exist two resonance peaks crest frequency differ to Few 4000Hz.Can have one in resonance peak within the human ear range of audibility, two other outside the human ear range of audibility, and At least there is the crest frequency difference at least 500Hz of two resonance peaks；Preferably, a resonance peak the human ear range of audibility it Interior, at least there is the crest frequency difference of two resonance peaks at least in two other resonance peak outside the human ear range of audibility 1000Hz；It is highly preferred that a resonance peak is within the human ear range of audibility, two other outside the human ear range of audibility, and At least there is the crest frequency difference at least 2000Hz of two resonance peaks；It is further preferred that a resonance peak is audible in human ear Within the scope of, at least there is the crest frequency difference of two resonance peaks at least outside the human ear range of audibility in two other 3000Hz；It is further preferred that a resonance peak is within the human ear range of audibility, two other the human ear range of audibility it Outward, and at least there is the crest frequency difference at least 4000Hz of two resonance peaks.Resonance peak can all in frequency 5Hz- Between 30000Hz, and at least there is the crest frequency difference at least 400Hz of two resonance peaks；Preferably, resonance peak can be all Between frequency 5Hz-30000Hz, and at least there is the crest frequency difference at least 1000Hz of two resonance peaks；More preferably All between frequency 5Hz-30000Hz, and can at least there is the crest frequency difference of two resonance peaks at least in ground, resonance peak 2000Hz；It is further preferred that all between frequency 5Hz-30000Hz, and two resonance peaks can at least be present in resonance peak Crest frequency difference at least 3000Hz；It is further preferred that resonance peak can all between frequency 5Hz-30000Hz, and And at least crest frequency difference at least 4000Hz of two resonance peaks of presence.Resonance peak can all frequency 20Hz-20000Hz it Between, and at least there is the crest frequency difference at least 400Hz of two resonance peaks；Preferably, resonance peak can all in frequency Between 20Hz-20000Hz, and at least there is the crest frequency difference at least 1000Hz of two resonance peaks；It is highly preferred that resonance All between frequency 20Hz-20000Hz, and can at least there is the crest frequency difference of two resonance peaks at least in peak 2000Hz；It is further preferred that all between frequency 20Hz-20000Hz, and two resonance peaks can at least be present in resonance peak Crest frequency difference at least 3000Hz；It is further preferred that resonance peak can all between frequency 20Hz-20000Hz, and And at least crest frequency difference at least 4000Hz of two resonance peaks of presence.Resonance peak can all in frequency 100Hz-18000Hz Between, and at least there is the crest frequency difference at least 400Hz of two resonance peaks；Preferably, resonance peak can all in frequency Between 100Hz-18000Hz, and at least there is the crest frequency difference at least 1000Hz of two resonance peaks；It is highly preferred that humorous Shaking peak can all between frequency 100Hz-18000Hz, and the crest frequency of at least two resonance peaks of presence is differed at least 2000Hz；It is further preferred that all between frequency 100Hz-18000Hz, and two resonance can at least be present in resonance peak The crest frequency difference at least 3000Hz at peak；It is further preferred that resonance peak can all frequency 100Hz-18000Hz it Between, and at least there is the crest frequency difference at least 4000Hz of two resonance peaks.Resonance peak can all in frequency 200Hz- Between 12000Hz, and at least there is the crest frequency difference at least 400Hz of two resonance peaks；Preferably, resonance peak can be all Between frequency 200Hz-12000Hz, and at least there is the crest frequency difference at least 1000Hz of two resonance peaks；More preferably Ground, resonance peak can all between frequency 200Hz-12000Hz, and at least exist two resonance peaks crest frequency differ to Few 2000Hz；It is further preferred that resonance peak can all between frequency 200Hz-12000Hz, and at least presence two is humorous Shake peak crest frequency difference at least 3000Hz；It is further preferred that resonance peak can all frequency 200Hz-12000Hz it Between, and at least there is the crest frequency difference at least 4000Hz of two resonance peaks.Resonance peak can all in frequency 500Hz- Between 10000Hz, and at least there is the crest frequency difference at least 400Hz of two resonance peaks；Preferably, resonance peak can be all Between frequency 500Hz-10000Hz, and at least there is the crest frequency difference at least 1000Hz of two resonance peaks；More preferably Ground, resonance peak can all between frequency 500Hz-10000Hz, and at least exist two resonance peaks crest frequency differ to Few 2000Hz；It is further preferred that resonance peak can all between frequency 500Hz-10000Hz, and at least presence two is humorous Shake peak crest frequency difference at least 3000Hz；It is further preferred that resonance peak can all frequency 500Hz-10000Hz it Between, and at least there is the crest frequency difference at least 4000Hz of two resonance peaks.In order to further obtain reasonable effect, At least two resonance peaks can be within the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is not higher than 20000Hz, it is preferable that at least two resonance peaks can within the human ear range of audibility, and by the first vibration-transmitting plate produce it is humorous The peak that shakes is not higher than 10000Hz, it is preferable that at least two resonance peaks within the human ear range of audibility, and can be passed and shaken by first Piece produce resonance peak be not higher than 5000Hz, it is preferable that at least two resonance peaks can within the human ear range of audibility, and by First vibration-transmitting plate produce resonance peak be not higher than 2000Hz, it is preferable that at least two resonance peaks can the human ear range of audibility it It is interior, and the resonance peak produced by the first vibration-transmitting plate is not higher than 1000Hz, it is preferable that and at least two resonance peaks can in human ear Within the scope of listening, and the resonance peak produced by the first vibration-transmitting plate is not higher than 500Hz, it is preferable that at least two resonance peaks can be with Within the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is not higher than 300Hz, it is preferable that at least two is humorous Shaking peak can be within the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is not higher than 200Hz；Preferably, extremely Few two resonance peaks can be within the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is in 20-20000Hz models Enclose, it is preferable that at least two resonance peaks can be within the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate exists 20-10000Hz scopes, it is preferable that at least two resonance peaks within the human ear range of audibility, and can be produced by the first vibration-transmitting plate Raw resonance peak is in 20-5000Hz scopes, it is preferable that at least two resonance peaks can within the human ear range of audibility, and by The resonance peak that first vibration-transmitting plate is produced is in 20-2000Hz scopes, it is preferable that at least two resonance peaks can be in the human ear range of audibility Within, and the resonance peak produced by the first vibration-transmitting plate is in 20-1000Hz scopes, it is preferable that and at least two resonance peaks can be Within the human ear range of audibility, and by the first vibration-transmitting plate produce resonance peak in 20-500Hz scopes, it is preferable that at least two is humorous Shake peak can within the human ear range of audibility, and by the first vibration-transmitting plate produce resonance peak in 20-300Hz scopes, it is preferable that At least two resonance peaks can within the human ear range of audibility, and by the first vibration-transmitting plate produce resonance peak in 20-200Hz models Enclose；It is highly preferred that transducing head produces at least two resonance peaks in the human ear range of audibility, and by the humorous of the first vibration-transmitting plate generation The peak that shakes is not higher than 20000Hz, it is highly preferred that transducing head produces at least two resonance peaks in the human ear range of audibility, and by the The resonance peak that one vibration-transmitting plate is produced is not higher than 10000Hz, it is highly preferred that transducing head at least two resonance peaks of generation can in human ear Scope is listened, and the resonance peak produced by the first vibration-transmitting plate is not higher than 5000Hz, it is highly preferred that transducing head produces at least two Resonance peak is in the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is not higher than 2000Hz, it is highly preferred that transducing dress At least two resonance peaks of generation are put in the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is not higher than 1000Hz, It is highly preferred that transducing head produces at least two resonance peaks in the human ear range of audibility, and the resonance produced by the first vibration-transmitting plate Peak is not higher than 500Hz, it is highly preferred that transducing head produces at least two resonance peaks in the human ear range of audibility, and is passed by first The resonance peak that the piece that shakes is produced is not higher than 300Hz, it is highly preferred that transducing head produces at least two resonance peaks in the audible model of human ear Enclose, and the resonance peak produced by the first vibration-transmitting plate is not higher than 200Hz；It is highly preferred that transducing head produces at least two resonance Peak is in the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is in 20-20000Hz scopes, it is highly preferred that transducing dress Put generation at least two resonance peaks in the human ear range of audibility, and by the first vibration-transmitting plate produce resonance peak in 20-10000Hz models Enclose, it is highly preferred that transducing head produces at least two resonance peaks in the human ear range of audibility, and by the humorous of the first vibration-transmitting plate generation Peak shake in 20-5000Hz scopes, it is highly preferred that transducing head produces at least two resonance peaks in the human ear range of audibility, and by The resonance peak that first vibration-transmitting plate is produced is in 20-2000Hz scopes, it is highly preferred that transducing head produces at least two resonance peaks in people The ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is in 20-1000Hz scopes, it is highly preferred that transducing head is produced At least two resonance peaks are in the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate is in 20-500Hz scopes, more excellent Selection of land, transducing head produces at least two resonance peaks in the human ear range of audibility, and the resonance peak produced by the first vibration-transmitting plate exists 20-300Hz scopes, it is highly preferred that transducing head produces at least two resonance peaks in the human ear range of audibility, and are shaken by the first biography The resonance peak that piece is produced is in 20-200Hz scopes.In one embodiment, pass by using oscillating plate, the first vibration-transmitting plate and second Triple compound vibration systems of the piece that shakes composition, can obtain the frequency response as shown in Figure 12-B, there is the triple of the first vibration-transmitting plate Compound vibration systems generate three obvious resonance peaks, generate more flat frequency response, improve tonequality.

By parameters such as the sizes and material of the first vibration-transmitting plate of change, resonance peak can be allowed to be moved, finally be managed Think the frequency response under state.For example, the stiffness factor of the first vibration-transmitting plate is reduced to into design load, resonance peak can be allowed to move to low frequency Move to design attitude, bone-conduction speaker frequency response can be made to be highly improved in the sensitivity of low-frequency range, it is easy to obtain more Good tonequality.As shown in Figure 12-C, when the stiffness factor of the first vibration-transmitting plate is gradually lowered, (i.e. described first vibration-transmitting plate is by cirrhosis It is soft), resonance peak to low frequency direction is moved, and sensitivity of the bone-conduction speaker frequency response in low-frequency range is significantly improved.It is excellent Selection of land, the first vibration-transmitting plate is a flexure strip.The elasticity is determined by the many-side such as material, thickness, structure of the first vibration-transmitting plate.First The material of vibration-transmitting plate, such as but not limited to, steel (such as but not limited to stainless steel, carbon steel etc.), alloy in lightweight are (for example but not Be limited to aluminium alloy, beryllium copper, magnesium alloy, titanium alloy etc.), plastic cement (such as but not limited to high-molecular polythene, blow-molding nylon, engineering Plastics etc.), or other single or composites of same performance can be reached.For composite, such as but not limited to The reinforcing materials such as glass fibre, carbon fiber, boron fibre, graphite fibre, graphene fiber, silicon carbide fibre or aramid fiber, Can be other organic and/or inorganic material compounds, such as glass fiber reinforcement unsaturated polyester, epoxy resin or phenolic aldehyde All kinds of fiberglass of resin matrix composition.The thickness of the first vibration-transmitting plate is not less than 0.005mm, it is preferable that thickness is 0.005mm- 3mm, it is highly preferred that thickness is 0.01mm-2mm, more preferably, thickness is 0.01mm-1mm, it is further preferred that thickness is 0.02mm-0.5mm.The structure of the first vibration-transmitting plate can be set to ring-type, it is preferable that comprising at least one annulus, it is preferable that bag Can be donut, or non-concentric annulus containing at least two annulus, be connected by least two poles between annulus, Pole radiates from outer shroud to inner ring center, it is further preferred that comprising at least one oval annulus, it is further preferred that including At least two oval annulus, different oval annulus are had different radius of curvature, are connected by pole between annulus, further Preferably, the first vibration-transmitting plate includes at least one Q-RING.First vibration-transmitting plate structure can also set slabbing, it is preferable that on Face arranges pierced pattern, and the area of pierced pattern is not less than the area without hollow out.Material, thickness, structure can in above description To be combined into different vibration-transmitting plates.For example, ring-type vibration-transmitting plate has different thickness distributions, it is preferable that strut thickness is equal to circle Ring thickness, it is further preferred that strut thickness is more than annulus thickness, it is further preferred that the thickness of inner ring is more than outer shroud Thickness.

Specific embodiment

Embodiment one

May be selected to adopt multi-frequency response curve, user or tester in a kind of portable ossiphone Appropriate hearing aid response curve can be selected according to the real response curve of hearing system to compensate.In addition, according to reality Border need, the vibrating device in ossiphone so that audiphone in particular frequency range can producing ratio it is comparatively ideal Frequency response, for example frequency range is in 500Hz～4000Hz.

Embodiment two

A kind of vibration of bone-conduction speaker produces part as shown in figure 13.Wherein, transducing head is included by magnetic conductive board 1310, the magnetic circuit system that magnet 1311 and magnetic conductor 1312 are constituted, oscillating plate 1314, coil 1315, the He of the first vibration-transmitting plate 1316 Second vibration-transmitting plate 1317.Panel 1313 projects shell 1319, and vibrating reed 1314 by glue bonding, and the first vibration-transmitting plate 1316 will Transducing head is fastened on shell 1319, forms suspended structure.

During bone-conduction speaker works, by oscillating plate 1314, the first vibration-transmitting plate 1316 and the second vibration-transmitting plate Triple vibrational systems of 1317 compositions can produce more flat frequency response curve, so as to improve the sound of bone-conduction speaker Matter.

First vibration-transmitting plate can be adopted such as, but not limited to, materials such as stainless steel, beryllium copper, plastic cement, Merlon, Its thickness is in the range of 0.01mm-1mm.

Embodiment three

The characteristics of the present embodiment is：As shown in figure 14, vibration transfer layer 1420 is increased on panel 1413 (for example but not It is limited to silica gel), vibrating transfer layer 1420 can produce certain deformation adaptation skin shape.With panel on vibration transfer layer 1420 The part of 1413 contacts forms ledge structure higher than the part not contacted with panel 1413 on vibration transfer layer 1420.In vibration (part that transfer layer 1420 does not protrude is vibrated in Figure 14) design one of part that transfer layer 1420 is not contacted with panel 1413 or Multiple apertures 1421.Lou sound can be reduced in vibration transfer layer design aperture：Panel 1413 by vibration transfer layer 1420 with it is outer The connection of shell 1419 dies down, and panel 1413 is reduced by the vibration that vibration transfer layer 1420 is delivered to shell 1419, so as to reduce The leakage sound that shell 1419 shuttle belt comes；The part that vibration transfer layer 1420 does not protrude arranges aperture 1421, and below product reduces, energy Enough air for driving are reduced, and the leakage sound caused by air vibration reduces；The non-projection of vibration transfer layer 1420 arranges aperture After 1421, sound wave is directed to out outside shell in the shell that the air vibration in housing is formed, the air vibration shape caused with shell 1419 Into leakage speech ripple cancel out each other, reduce leakage sound.

Example IV

The characteristics of the present embodiment is：Due to panel protrude speaker housings, while using connector by panel with raise one's voice Device cage connection, panel is substantially reduced with the degree of coupling of shell, and connector can provide certain deformation so that panel It is that there is the higher free degree fitting with user, binding face (the right figure institute in Figure 15-A of complexity can be better adapted to Show), the connector can cause panel that the inclination of certain angle is produced relative to shell.Preferably, angle of inclination is less than 5 ゜。

Further, the vibration efficiency of loudspeaker is different and different with fit-state.Good fit-state has Higher vibration transmission efficiency.As shown in Figure 15-B, thick line shows the vibration transmission efficiency in the state of laminating preferably, and fine rule shows Show laminating it is bad in the state of vibration transmission efficiency, it can be seen that preferably fit-state vibration transmission efficiency is higher.

Embodiment five

The present embodiment is with the difference of embodiment three：Increase a surrounding edge at the edge of shell, in shell and skin During skin is contacted, surrounding edge can cause distribution of forces more uniform, increase the comfort level that bone-conduction speaker is worn.Such as Shown in Figure 16, there is difference in height d between surrounding edge 1610 and panel 1613₀.Skin acts on the power on panel 1613 so that panel The distance between 1613 and surrounding edge 1610 d reduces, when the pressure between bone-conduction speaker and user is more than the shape of connector 1616 It is changed into d₀When suffered power when, unnecessary clamping force can be delivered to skin via surrounding edge 1610, and not to the clamping of oscillating component Power produces impact so that the uniformity of clamping force is higher, so as to ensure tonequality.

Embodiment six

As shown in figure 17, the connection member 1720 of panel 1710 and transducing head (not drawing in fig. 17) is such as panel-shaped Shown in dotted line.Vibration is passed to panel 1710 by transducing head by connection member 1720, then the position residing for connection member 1720 It is set to the centre of oscillation of panel 1710.Distances of the center O of connection member 1720 apart from the both sides of panel 1710 is respectively L₁And L₂。 By the size for changing panel 1710, position of the connection member 1720 on panel 1710 can change fitting for panel and skin Performance and the transmission efficiency of vibration.Preferably, L₁And L₂Ratio be set greater than 1, it is highly preferred that L₁And L₂Ratio set It is set to more than 1.61, it is further preferred that L₁And L₂Ratio be set greater than 2.Again for example, big panel, middle panel can be selected Act in vibrating device with small panel.Big panel mentioned here refers to the panel described by Figure 17, and the area of panel 1710 is more than The area of connection member 1720, middle panel refers to that panel 1710 is identical with the size of connection member 1720, and small panel refers to panel 1710 Situation of the area less than connection member 1720.The position of different size of panel and different connection members 1720, its transmission Vibration has different distributions on wearer's binding face, and then can bring volume, the difference of tonequality.

Embodiment described above only expresses several specific embodiments of the present invention, and its description is more concrete and detailed, But can not be therefore understands that being the restriction to the scope of the claims of the present invention.It should be pointed out that for the ordinary skill people of this area For member, without departing from the inventive concept of the premise, some deformations and improvement can also be made, such as be disclosed in this specification Several change bond-conduction sounds transmission mode, can be carried out being combined and change, but these modifications and combinations are still Within the claims of the present invention.

Claims (16)

1. a kind of method for improving bone-conduction speaker tonequality, it is characterised in that

Bone-conduction speaker is provided, the bone-conduction speaker includes

One shell, a transducing head, one first vibration-transmitting plate；

Transducing head is fastened on shell by first vibration-transmitting plate,

The transducing head is hung by the first vibration-transmitting plate with the shell and is connected,

Vibration passes to shell by transducing head by the first vibration-transmitting plate；

First vibration-transmitting plate can cause loudspeaker to produce the resonance peak in a human ear range of audibility；

The transducing head can produce at least one resonance peak.

2. the method as described in claim 1, it is characterised in that the transducing head includes an at least oscillating plate and one second Vibration-transmitting plate, the transducing head can produce at least two resonance peaks.

3. the method as described in claim 2, it is characterised in that described two resonance peaks are all in the audible sound audio of human ear In the range of rate.

4. method as claimed in claim 2, it is characterised in that the oscillating plate, the first vibration-transmitting plate and the second vibration-transmitting plate composition Triple vibrational systems.

5. the method as described in claim 2, it is characterised in that the transducing head includes at least one voice coil loudspeaker voice coil and at least Individual magnetic circuit system；The voice coil loudspeaker voice coil and the oscillating plate physical connection, the magnetic circuit system and the second vibration-transmitting plate physical connection.

6. the method as described in claim 1, it is characterised in that first vibration-transmitting plate is flexure strip.

7. the method as described in claim 6, it is characterised in that first vibration-transmitting plate is to center influx at least two first Pole.

8. the method as described in claim 6, it is characterised in that the first described vibration-transmitting plate thickness is 0.005mm-3mm.

9. a kind of bone-conduction speaker, it is characterised in that include：

One shell, a transducing head, one first vibration-transmitting plate；

Transducing head is fastened on shell by first vibration-transmitting plate,

The transducing head is hung by the first vibration-transmitting plate with the shell and is connected, and is vibrated and is passed through the first vibration-transmitting plate by transducing head Pass to shell；

First vibration-transmitting plate can cause loudspeaker to produce the resonance peak in a human ear range of audibility；

The transducing head can produce at least one resonance peak.

10. the bone-conduction speaker as described in claim 9, it is characterised in that the transducing head includes an at least oscillating plate With one second vibration-transmitting plate, the transducing head can produce at least two resonance peaks.

11. bone-conduction speakers as described in claim 10, it is characterised in that described two resonance peaks are all audible in human ear In the audio frequency range for arriving.

12. bone-conduction speakers as claimed in claim 10, it is characterised in that the oscillating plate, the first vibration-transmitting plate and second Triple vibrational systems of vibration-transmitting plate composition.

13. bone-conduction speakers as described in claim 10, it is characterised in that the transducing head includes at least one sound Circle and at least one magnetic circuit system；The voice coil loudspeaker voice coil and the oscillating plate physical connection, the magnetic circuit system is passed with described second and shaken Piece physical connection.

14. bone-conduction speakers as described in claim 9, it is characterised in that first vibration-transmitting plate is flexure strip.

15. bone-conduction speakers as described in claim 14, it is characterised in that first vibration-transmitting plate to center influx extremely Few two the first poles.

16. bone-conduction speakers as described in claim 14, it is characterised in that the first described vibration-transmitting plate thickness is 0.005mm-3mm。