CN103618979B - Plate speaker - Google Patents
Plate speaker Download PDFInfo
- Publication number
- CN103618979B CN103618979B CN201310089954.XA CN201310089954A CN103618979B CN 103618979 B CN103618979 B CN 103618979B CN 201310089954 A CN201310089954 A CN 201310089954A CN 103618979 B CN103618979 B CN 103618979B
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- China
- Prior art keywords
- vibration film
- supporting frame
- plane vibration
- plate speaker
- plate
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Abstract
The present invention relates to a kind of plate speaker, including supporting frame, it is characterised in that：There is at least one phonation unit along supporting frame is axially arranged, each phonation unit is projected the plane vibration film of sound wave by a vibration and formed along the framework of periphery installation and the drive device for the vibration plane vibration film for answering voice signal to act of plane vibration film, respectively there is a non-contact space on two sides of the trench digging part opened up on supporting frame, described non-contact space is along a corner cut on outer avris on the trench digging portion bottom surface opened up on supporting frame, and the framework installed along the periphery of plane vibration film is bonded on the trench digging part opened up on supporting frame.It is an advantage of the invention that with good output frequency characteristic, ultrathin can also be realized under big input power, and sound transmission have it is preceding to directionality.
Description
Technical field
The present invention relates to a kind of plate speaker.
Background technology
In recent years, in order to adapt to carry the ultrathin demand of the television receiver of loudspeaker etc., have to loudspeaker requirement ultra-thin
Change.For the requirement of such a ultrathin.It is about hemispheric to be referred to as conical horn and to vibrate oscillating plate, from opening portion output sound
The conical horn of sound be difficult to fully corresponding to.It is reason for this is that conical horn, for the ultrathin of outer shape, if
Circular cone is carried out thinning, the internal diameter of circular cone can also diminish, and sensitivity, the sensitivity in particularly bass domain will step-downs.Cone
Loudspeaker are to export sound from the inner face direction opening portion of the circular cone of about semi-spherical shape.So sound that conical horn is exported
Sound linearity is very weak（Directive property is weak）.
JP 2010-166515 publications, disclose a kind of plate speaker, in order to perceive the middle pitch for being placed in 1kHz degree
Domain and be placed in 15KHz degree high range volume and same degree volume sound.And in order to which this sound is exported
In the bass domain of 150Hz degree, it has to the global design of plate speaker into oscillating plate is big and amplitude can be made to reach possibility
Design.So plate speaker disclosed in the invention file work is to be difficult to be realized when there is good output frequency characteristic
Sufficient ultrathin.
The content of the invention
The purpose of the present invention is to provide with good output frequency characteristic and can fully realize the flat board of ultrathin
Loudspeaker.Present invention design plate speaker, including supporting frame, it is characterised in that：Along supporting frame it is axially arranged have it is at least one
Phonation unit, the frame that plane vibration film of each phonation unit by a vibration injection sound wave and the periphery along plane vibration film are installed
Body and the drive device for vibrating the plane vibration film for answering voice signal to act are formed, the trench digging portion opened up on supporting frame
At least one pair of non-contact space is provided with the side divided, described non-contact space is the trench digging part opened up on supporting frame
Along a corner cut on outer avris on bottom surface, the framework installed along the periphery of plane vibration film is bonded in what is opened up on supporting frame
Ditch on part.It is characterized in that：The non-contact space of two sides of the described trench digging part opened up on supporting frame according to
The Central Symmetry distribution of drive device.It is characterized in that：Described phonation unit is a plurality of.It is characterized in that：The plane is shaken
Dynamic film is billet shape.It is characterized in that：The plane vibration film is toroidal.It is characterized in that：The plane vibration film is
Polygon.It is characterized in that：The framework is metal or hard material.It is characterized in that：The drive device is an installation
Permanent magnet on York and the coil composition being sleeved on around magnet, coil coiling on a coil support, support by coil
There is gap between body and permanent magnet, coil support is pasted by a suspension joint and plane vibration film, suspension joint and coil branch
The top matching of body is held, York is located in the recess of supporting frame bottom surface.It is characterized in that：The volume circle axle center of coil fills for driving
The center put.It is characterized in that：A magnetic strength iron plate plate is connected with permanent magnet upper end.It is characterized in that：In the non-contact sky
The interior material soft filled with property.It is characterized in that：Corresponded on the supporting frame each phonation unit be provided with to
Few a through hole and positive and negative electrode binding post.It is characterized in that：Plane vibration film forms for light basis weight material.It is characterized in that：
Described corner cut is an inner groovy on the trench digging portion bottom surface corner opened up on supporting frame, and the cross section of inner groovy is
Rectangle.It is characterized in that：At least 1 millimeter of the height of described inner groovy.
It is an advantage of the invention that because supporting frame be equiped with non-contact space, in oscillating region supporting frame
Support plane vibration film and released among fixed limitation action by solution, can make framework and plane vibration film vibrate together after
And export sound.Therefore, it can expand oscillating region for plate speaker, corresponding voice signal.So also therefore without expanding
The amplitude can of big plane vibration film exports highly sensitive sound.This effect is particularly in the sound output for bass domain
Highly significant.Further, since It is not necessary to expand the amplitude of plane vibration film, it is possible to realize the ultrathin of plate speaker.
When plane vibration film is billet shape, being monolithically fabricated as billet shape for plate speaker is realized.So it is easy to be equipped on TV
On the peripheral part of the other machines of machine device etc..Non-contact space, it is respectively installed in configuration center on driving means
During symmetric position, well the plane vibration film in the corresponding each non-contact space of control and from each sound of framework output not
Equilibrium, realize the difficult powerful deterioration for can simultaneously be effectively controlling tonequality on conventional type loudspeaker.Framework is with gold
When category is made, realize the hot heat sink functionality that the inside for releasing plate speaker is occurred and plate speaker can be efficiently controlled
The rising of internal temperature is when non-contact space is filled with the soft raw material of property, framework and plane vibration vibration of membrane
And amplitude, it can be controlled with desired object.
Brief description of the drawings
Fig. 1 is the schematic diagram of the plate speaker of the embodiment of the present invention, is the phonation unit output system for representing to possess 2
The side schematic view of the configuration example of system.
Fig. 2 is the floor map of plate speaker shown in Fig. 1.
Fig. 3 is the schematic bottom view of plate speaker shown in Fig. 1.
Fig. 4 is along the schematic cross-section of IV-IV lines shown in Fig. 2.
Schematic diagram is squinted in the part seen inside installing coil support vibrating membrane that Fig. 5 is the present invention.
Fig. 6 is the floor map of the configuration example of the supporting frame of the present invention.
Fig. 7 is along the schematic cross-section of VII-VII lines shown in Fig. 6.
Fig. 8 is along the schematic cross-section of VIII-VIIII lines shown in Fig. 6.
Fig. 9 is the main portion strabismus schematic diagram of the supporting frame of the present invention.
Figure 10 is the explanation schematic diagram of the output frequency characteristic of the plate speaker of embodiment of the present invention.
Figure 11 is the floor map for the plane vibration film that the present invention realizes sound output example in 1 phonation unit.
Figure 12 is the floor map that the present invention realizes sound output example plane vibration film in 3 phonation units.
Figure 13 is the floor map that the present invention realizes sound output example plane vibration film in 4 phonation units.
Figure 14 is floor map of the present invention using the vibrating membrane on the plate speaker of toroidal.
Figure 15 is floor map of the present invention using the vibrating membrane on the plate speaker of octagonal shape.
Embodiment
Plate speaker, including supporting frame, it is characterised in that：There is at least one sounding list along supporting frame is axially arranged
Member, the framework and answer that plane vibration film of each phonation unit by a vibration injection sound wave and the periphery along plane vibration film are installed
The drive device of the vibration plane vibration film of voice signal action is formed, the side of the trench digging part opened up on supporting frame
On be provided with least one pair of non-contact space, described non-contact space is on the trench digging portion bottom surface opened up on supporting frame
Along a corner cut on outer avris, the framework installed along the periphery of plane vibration film is bonded in the trench digging portion opened up on supporting frame
On point.It is characterized in that：The non-contact space of two sides of the described trench digging part opened up on supporting frame fills according to driving
The Central Symmetry distribution put.It is characterized in that：Described phonation unit is a plurality of.It is characterized in that：The plane vibration film is
Billet shape.It is characterized in that：The plane vibration film is toroidal.It is characterized in that：The plane vibration film is polygon
Shape.It is characterized in that：The framework is metal or hard material.It is characterized in that：The drive device is arranged on York for one
On permanent magnet and the coil composition that is sleeved on around magnet, coil coiling is on a coil support, coil support and forever
There is gap between magnet, coil support is pasted by a suspension joint and plane vibration film, suspension joint and coil support
Top matches, and York is located in the recess of supporting frame bottom surface.It is characterized in that：The volume circle axle center of coil is in drive device
The heart.It is characterized in that：A magnetic strength iron plate plate is connected with permanent magnet upper end.It is characterized in that：Filled out in the non-contact space
Filled with the soft material of property.It is characterized in that：Corresponded on the supporting frame each phonation unit be provided with it is at least one
Through hole and positive and negative electrode binding post.It is characterized in that：Plane vibration film forms for light basis weight material.It is characterized in that：Described
Corner cut is an inner groovy on the trench digging portion bottom surface corner opened up on supporting frame, and the cross section of inner groovy is rectangle.
It is characterized in that：At least 1 millimeter of the height of described inner groovy.
Below based on drawing, illustrate the embodiment of the plate speaker 10 for being related to the present invention.
Firstly, for the configuration example of the plate speaker 10 of 2 voice output systems of installing, reference is said from Fig. 1 to Fig. 4
It is bright.
（It is monolithically fabricated）
Plate speaker 10 be with vibrate transmitting sound wave plane vibration film 11, along the periphery of vibrating membrane 11 installing framework 12,
Answer that voice signal acts and the drive device of plane of oscillation vibrating membrane 11 and installing and framework 12 are harmoniously supported, are fixed flat
The supporting frame 13 of surface vibration film 11.
（Plane vibration film）
As shown in Fig. 2 and Fig. 4, plane vibration film 11 be the in-plane schematic diagram put down in plate loudspeaker 10 see to be formed it is about long
Square shape（Short strip shape）, there is the trench digging part 13h of the supporting frame 13 later, the chimeric and shape that is supported.
It is adapted to the material character of plane vibration film 11 not limit specifically, such as low density polyethylene (LDPE) etc. can be used.And
And plane vibration film 11 can use suitable composite material, can be adjusted according to the combination of composite material defeated from plate speaker 10
The tonequality gone out.Further, low shrink(LS) raw material and flame retardancy are used according in plane vibration film 11（Extremely low shrinkage）It is former
The composite material of material, it is possible to achieve improve heat resistance and contraction intensity.
In addition, it is relatively good using the raw material of light weight as plane vibration film 11, the output of plate speaker 10 can be improved
Efficiency.Moreover, plane vibration film 11 is extremely low using retractility and heat resistance and cold resistance are high（Such as -40~120 DEG C
And can use）Raw material are relatively good.Further, plane vibration film 11 should use corresponding demand, recycle it is easy, discarded
The readily raw material of various characteristic such as the raw material of corresponding environment or rubberizing material, flame resistance raw material.Realization has
The plane vibration film 11 of various characteristic or Design modelling.
Further, it is preferred to material of the plane vibration film 11 using surfacing, can realize that raising is flat according to such a raw material
Plate loudspeaker export the linearity of sound（Directive property）, can be very good some of control plane vibrating membrane 11（Such as formed with
The part of concave shape）The sound of output and other parts（Such as the part formed with convex form）The interference of sound institute of output
The distortion of generation is cancelled with sound.
（Framework）
Framework 12 is that either the raw material metal of stainless steel etc. or resin etc. are made with laminal aluminium.Compare plane vibration
The rigidity of film 11 is high, Inner peripheral portions are pasted on along the periphery of the one side of plane vibration film 11, forms ring-type.This framework 12 be with it is rear
The trench digging part 13h of supporting frame 13 described in face harmoniously holds the peripheral part of plane vibration film 11 under the arm, pastes and is fixed on flat
The trench digging part 13h of surface vibration film 11.Therefore the width of framework 12 is askd to join one with and in the all-round trench digging part 13h width setting enclosed
The length of sample.The length of this part does not limit specifically.
（Supporting frame）
The present embodiment, drive device described below is formed in relevant longer direction center both sides in supporting frame 13
Position accommodates one and amounts to 2 respectively., only can be to corresponding one side because corresponding each key element is mutually identical
Drive device illustrate.
The supporting frame 13 before plane vibration film 11 assembles is illustrated in Fig. 6 to Fig. 9, long side direction length has bottom box
The mounting flange 13b that shape body 13a and this body 13a opening periphery is formed is formed.And there is bottom surface in body 13a
13f, the medial surface in mounting flange 13b, the plane vibration film 11 of mounted framework 12 are fitted together to adhesive portion and formed to all-round
Enclose.Recess 13g is set on the 13f of bottom surface, the metal York 41 of drive device described below is set on this recess 13g.And U
The inner structural element for accommodating drive device described below of supporting frame 13 in word shape section.
As shown in fig. 6, in mounting flange 13b trench digging part 13h, the vibration model of corresponding plane vibration film 11 described below
Enclose, then form the space segment cut away downwards（Non-contact space）Corner cut 13i.Corner cut 13i and plane vibration accordingly
A non-contact space is formed between film 11, framework 12.And formed according to trench digging part 13h and support scope.Such as Fig. 6 and figure
Shown in 8, the oscillating region of corresponding flat vibrating membrane 11 is corner cut 13i, more specifically in the configuration center C on drive device
（Reference picture 2.Such as the axle center of the volume circle of coil 43）Symmetric position, be equiped with mounting flange respectively in every drive device both sides
13b.And ensure there is abundant non-contacting depth in each corner cut 13i and plane vibration film 11.For example, at least 1 mm, from
Trench digging part 13h is formed to the space that lower section is cut away.
Suspension joint 50 is preferably by the resin with high-fire resistance.The resin etc. and cohesive it is high be coated with Ya Ke
The two sides adhesive fabric of power series of binders, is pasted onto plane vibration film 11.So suspension joint 50, corresponding to supply the electric current of coil 43
Change produced by electromagnetic force vibration, the vibration, which has, is communicated to the function of plane vibration film 11 through coil support 44.
And suspension joint 50, have and the heat that coil support 44 is communicated to from coil 43 is communicated to plane vibration film
11, the function of outwards being released through framework 12 or supporting frame 13.
（Drive device）
As shown in figure 4, being contained in the inside of supporting frame 13, the driving of voice signal action plane of oscillation vibrating membrane 11 is answered
Device（Driving circuit）Metal York 41 comprising the formation cup type that plane apparent time oblong shape is just looked at section U-shaped,
Put the permanent magnet 42, similar to magnetic strength iron plate plate 45 and the shape of magnet 42 oval for the magnetic strength iron plate plate 45 for carrying long disc-shape
The coil 43 of the coil support 44 of barrel shape and the periphery roll circle of coil support 44 is formed.
The bottom surface 13f of supporting frame 13（Reference picture 7 is to Fig. 9）, recess 13g is equiped with as previously described, it is embedding in this recess 13g
Conjunction has metal York 41.The magnet 42 of the permanent magnet of long cylinder shape is accommodated in the inner central position of metal York, is used
It is not shown to be bolted on metal York 41.And magnet 42 is arranged on the interior sidewall surface 41a of metal York 41 and straight
A fixed gap is made it have to all-round enclose between the side wall 42a of the side wall 42 of the magnet 42 of cube shape, is arranged on metal
The inner side of York 41, which positions, puts.
And put load on 42b above magnet 42, be fixed with magnetic strength iron plate plate 45.The side of magnetic strength iron plate plate 45, with gold
The interior sidewall surface 41a of category York 41 maintains a certain distance object configuration.Magnetic strength iron plate plate 45 is connected with magnet 42 with magnetism.
So in this example, magnetic is formed between the interior sidewall surface 41a of metal York 41, magnetic strength iron plate plate 45 and magnet 42
Air circuit.And filled between the interior sidewall surface 41a of metal York 41 and the interior sidewall surface 42a of magnet 42 and magnetic strength iron plate plate 45
Provided with space.The coil 43 of the coil support circle of volume 44, it is arranged on positioning for the space and puts.
Coil support 44 as shown in Figure 5, hollow cylinder is formed in interior sidewall surface 41a of the outer peripheral face along metal York 41
Shape.Coil 43 as shown in Figure 4, outer peripheral face of the volume circle in the coil support 44.And as shown in FIG. 4 and 5, according to coil
Paste and hang on the suspension joint 50 that 11b pastes below the plane vibration film 11 of support 44, coil 43 is configured in the space
Position and put.
But coil 43 is the periphery roll circle along coil support 44.And the leading section of the side of coil 43 1 and such as Fig. 3
Shown positive terminal 13d electrical connections.The leading section of the opposing party and negative terminal 13e as shown in Figure 3 electrical connections.It is and online
The electric current of voice signal is corresponded in circle 43, is supplied by positive terminal 13d and negative terminal 13e.Positive terminal 13d and
Negative terminal 13e is electrically connected to not shown electric current supply circuit.The electric current of voice signal is corresponded in coil 43, by just
Extremely sub- 13d and negative terminal 13e and supply.
If electric current is supplied on coil 43, magnetic circle between the medial surface 41a and magnetic strength iron plate plate 45 of metal York 41
Coil 43 produces electromagnetic force.Corresponding supply curent change, electromagnetic force caused by coil 43 also change.And corresponding supply coil 43
The change of electric current, electromagnetic force caused by coil 43 also change and by the plane of oscillation vibrating membrane 11 of suspension joint 50 and output sound
Sound.
（Assembling）
As described above, by coil support 44 and suspension joint 50, the plane vibration film 11 of coil 43 is installed,
Assembled on supporting frame with following situation.
And be pasted with the peripheral part of the plane vibration film 11 of framework 12, can zoning be fixed on branch into support as hereinafter described
The support scope and framework 12 for holding framework 13 vibrate possible oscillating region together.
In the trench digging part 13h of supporting frame 13, the mounting surface of framework 12 is used as outside to be entrenched in plane vibration film 11, with
Two sides adhesive fabric is pasted.In 11b peripheries, scope is being supported to be pasted onto the trench digging of supporting frame 13 below plane vibration film 11
Part 13h, but the oscillating region to corner cut 13i is not pasted on supporting frame.Plane vibration film 11 is together with framework 12
The not supported limitation of framework 13 acts and carries out free vibration.
And if it is shallow for the vibration film surface corner cut 13i of installation depth, when exporting sound according to plane vibration film 11
Vibration, the peripheral part interference corner cut 13i of the plane vibration film 11 bottom surface, it is possible to damage tonequality.Therefore corner cut 13i should be right
The size for answering the sound of plate speaker 10 to export is set in suitable depth.Also in the oscillating region of plane vibration film 11,
It should not be contacted with the trench digging part of supporting frame 13, vibrate and acted by limitation.So in oscillating region, with supporting frame 13
Surface contact limitation vibration of ditching is bad.So in order to not allow plane vibration film 11 and trench digging portion in oscillating region
Divide 13h interference, ensure there is gap between plane vibration film 11 and trench digging part 13h.
Then corner cut 13i length（That is the length cut away of the longer direction of supporting frame 13）Also plate speaker can be influenceed
Export the tonequality of sound.So the length of the longer direction of coil support 44 and gap of coil 43 and metal York 41 etc.
Appropriate length is set together.
（Action effect）
In the periphery of plane vibration film 11, according to installing and 13 discontiguous oscillating region of supporting frame.Can be in flat board
On the plane 10a of loudspeaker 10 using as output sound scope plane vibration film 11 area ratio true extension.And
According to the ratio true extension of the area of dynamic film 11, the amplitude of plane vibration film 11 can be made not expand.Realize the sound in output
The sensitivity in bass domain can be at least improved on sound, can at least improve the sound-playing function in bass domain.
Because the raw material such as the raw material metal higher than the rigidity of plane vibration film 11 or resin are used in framework 12.Root
Vibrate, can be achieved as high together with plane vibration film 11 according to the oscillating region upper frame body 12 in the periphery of plane vibration film 11
Sound loudspeaker export sound in high range.The sound output of supplement plane vibration film 11 can be realized.And according to framework 12 with gold
When category raw material are made, the function for the fin for heat caused by the inside of plate speaker 10 being released to outside is realized.Can be with
The rising of the internal temperature of control plate speaker 10 well.
As shown in Fig. 2 and Fig. 4, framework 12 and plane vibration film 11 together prolong along the outerplanar 11a of plate speaker 10
Stretch.Therefore the sound that the sound exported from plane vibration film 11 and the oscillating region from framework 12 export projects to same direction.
So it can be very good the tonequality that control reduces by interference.Realize the sound output of less distortion.
Framework 12 realized because the vibration of oscillating region then exports sound, compared with only exporting sound with plane vibration film 11,
The expansion of the scope of the corresponding voice signal vibration of plate speaker 10 can be realized.So without expanding shaking for plane vibration film 11
Width, it can at least be realized in bass domain and export sound with high sensitivity.Therefore the sound output in bass domain can at least be improved
Ability.The other amplitude because plane vibration film 11 need not be expanded, so when high current is inputted to coil 43, can also
The lower end of good control coil support 44 or coil 43 contact the inside bottom surface of encountering metal York 41 and caused different
Sound generation phenomenon is simultaneous and can realize the ultrathin of plate speaker 10.
The appropriate setting corner cut 13i depth and length on supporting frame 13, while in the trench digging of supporting frame 13
Periphery is pasted in the support scope of plane vibration film 11 on the 13h of part, limiting amplitude with this wastes.Good limit can be realized
Make the rear side from plate speaker 10（Plane 10a inboard）The air of discharge and the amount of leaked-in air.
The plate speaker for the conventional type that JP 2010-166515 publications are recorded, even if plate speaker individual is carried out
Ultrathin, in order to handle the space that the air vibration of rear side necessarily causes processing.Conventional flat board loudspeaker is specifically set
When, rear side has to separate from wall by fixed distance.When such a plate speaker carries other machines in addition, in order to locate
The air vibration for managing the plate speaker rear side is had to installation space, it is achieved that the ultrathin of the machine is highly difficult.
On the other hand, the plate speaker 10 of this embodiment, because limiting the rear side from plate speaker 10 well（Plane 10a
Inboard）Through hole 13k and 13l discharge air and leaked-in air amount.So this plate speaker 10 is being set
When, the distance that can be achieved to separate from the wall surface of rear side is shorter compared with the distance needed for conventional plate speaker.This is flat in addition
When plate loudspeaker 10 are equipped on other machines, the body in the space set to handle the air of the rear side of the plate speaker 10
Product, can make it become smaller than the volume of conventional plate speaker.And the design or Design modelling for improving the machine can be realized
The free degree while realize the burden of the mitigation machine designers.
And in corner cut 13i trench digging part 13h（11b below plane vibration film 11）On, can also be in requisition for configuration
The soft material of property（Rubber is serial, poly- hydrocarbon silica series and sponge series etc.）.And the raw material that the property is soft
At least one aspect of 11b below corner cut 13i trench digging part 13h and vibrating membrane 11 can be pasted onto.According to such a composition,
The size or species of the soft raw material of corresponding property, suitably select by tonequality etc. of the purpose of plate speaker 10, realize
The vibration of corresponding flat vibrating membrane 11 and framework 12 and the control of amplitude desired object etc..
（Export input characteristics）
The output input characteristics of the plate speaker 10 of this embodiment is illustrated.The plate speaker 10 of this embodiment
Appearance and size, it is a length of 220mm, a height of 22mm, a width of such as when carrying 2 drive devices（It is deep）9.5mm.
Rated input power is 15 W, maximal input is 25 W, rated impedance is 8.0 Ω, output sensitivity level（SPL）For
84dB±3dB（500Hz, 700Hz, 1kHz, 4kHz, 5kHz, 1W（2.83V 0.5m）.
As described in Figure 10, the sound output frequency characteristic of the plate speaker 10 of this embodiment is from the low of 150 Hz degree
Range slowly increases.Comprising from 250Hz degree to the midrange of 1kHz degree, and the high range to 16,000Hz degree, ±
It is substantially constant in the range of 5dB degree.Actual range of audibility is 200Hz to 20,000Hz.
So the plate speaker 10 of this embodiment, is formed stable in the broad scope from bass domain and paramount range
Output sensitivity and also there is sufficient high tone quality characteristic.
Here, the plate speaker for being related to the present invention can realize the phonation unit for a plane vibration film assembling plural number
Voice output system.As shown in Figures 1 to 10, in foregoing embodiment, the sound output machine of 2 groups of phonation unit is formed
Device system.Such as with phonation unit output device system on the one hand and phonation unit output device system on the other hand and double
Sound channel realizes that sound exports.
（Variation）
Figure 11 is the sound output for representing 1 phonation unit（Monophonic sounds export）Example.
Plane vibration film 11 as shown in figure 11 is to form billet shape, possess the voice output system of 1（Only homologous ray
Coil support 44 just represented with broken line, it is same as below）, using on plate speaker 10.Used in foregoing embodiment
Reference marks and pay the inscape referring again to symbol, form and effect and the essence among foregoing embodiment
On be the same.Because feeling to be readily appreciated that, detailed description is omitted.
In the trench digging part 13h of supporting frame（Do not illustrated in Figure 11）The upper chimeric support scope for having plane vibration film 11.
And the relevant symmetrical positions of center C of the longer direction drive device in trench digging part 13h ascender line circles support 44
（The scope represented with oblique line）On be configured with the oscillating region of a substantially plane vibration film 11.On the position with foregoing reality
Homomorphosis is applied, is equiped with the corner cut 13i that coplanar vibrating membrane 11 can vibrate together framework 12 respectively.
Variation as shown in figure 11, can because there is the phonation unit output system of one in the supporting frame over-assemble of one
Realize plate speaker inexpensive and with this embodiment effect.
Figure 12 is the variation for the output system sound output for representing 3 phonation units.As shown in Figure 12 examples, plane vibration film
11 form billet shapes, and possessing has the output system uses of 3 phonation units on plate speaker 10.
And in the trench digging part 13h of supporting frame（Do not illustrated in Figure 12）The upper chimeric support scope for having vibrating membrane 11.
And the relevant symmetrical positions of center C of the longer direction driving means of trench digging part 13h ascender line circles support 44（With oblique
The scope that line represents）On be configured with the oscillating region of plane vibration film 11.On the position, coplanar vibrating membrane 11 is equiped with respectively
The corner cut 13i that framework 12 can together vibrated.
Variation as shown in figure 12, because a supporting frame is assembled with the phonation unit output system of 3, each sounding list
First output device system can be realized while reaching the effect of foregoing embodiment respectively according to L channel, middle sound channel and the right side
The sound output of 3 channels of sound channel.
Figure 13 is the variation for representing the output of 4 phonation unit output system sound.As shown in Figure 13 examples, plane vibration film 11
Billet shape is formed, possessing there are 4 voice output system uses on plate speaker 10.
And in the trench digging part 13h of supporting frame（Do not illustrated in Figure 13）The upper chimeric support model for having vibrating membrane 11
Enclose.And in symmetrical position relevant the center C of the longer direction drive device of trench digging part 13h ascender line circles support 44
（The scope represented with oblique line）On be configured with the oscillating region of plane vibration film 11.On the position with foregoing embodiment phase
Together, the corner cut 13i that coplanar vibrating membrane 11 can vibrate together framework 12 is equiped with respectively.
According to variation as shown in figure 12 and variation as shown in figure 13.Assembled each phonation unit output device
The driving means difference plane of oscillation vibrating membrane 11 of system, therefore can realize that the electric current for supplying each drive device diminishes.Institute
So that the amplitude of plane vibration film 11 is diminished, the further ultrathin of plate speaker is realized.
And according to variation as shown in figure 12 and variation as shown in figure 13.Because to assembled each phonation unit
The electric current of the corresponding alternative sounds signal of each drive device supply of output device system, it is possible to achieve the output of alternative sounds.
Because the sound linearity such as the plate speaker output is strong, the sound exported according to each drive device, it is possible to achieve do not have
Interference is output to remote place.
And variation as shown in figure 11, can be in one phonation unit output device system of a supporting frame over-assemble
System, may be constructed and exported with monophonic sounds.It is defeated from each phonation unit when assembling the phonation unit output device system of plural number
Go out machine system and export same sound, can also form and be exported with monophonic sounds.
Figure 14 is the variation for representing the plane vibration film 11 using toroidal.In this variation, in the 13h of supporting frame
（Do not illustrated on Figure 14）The support scope of the upper chimeric vibrating membrane 11 for being bonded with toroidal.And in trench digging part 13h
Oscillating regions of the center C of upper drive device about being configured with plane vibration film 11 in (scope that oblique line represents) symmetric position.
Install the corner cut 13i that coplanar vibrating membrane 11 can vibrate together framework 12 respectively on the position.
And as shown in figure 14, in this variation, inner peripheral is installed on plane vibration film 11 of the framework 12 along toroidal.
Simultaneous and plane vibration film 11 shape is not limited to the other shapes that proper circle shape can also be elliptical shape etc..
Figure 15 is to represent the variation of plane vibration film 11 using octagonal shape.In this variation, in the 13h of supporting frame
（Do not illustrated in Figure 15）The support scope of the upper chimeric vibrating membrane 11 for being bonded with octagonal shape.And on the 13h of the trench digging part
Oscillating regions of the center C of drive device about being configured with plane vibration film 11 in (scope that oblique line represents) symmetric position.
It is identical with foregoing embodiment on the position, the corner cut 13i that same vibrating membrane 11 can vibrate together framework 12 is installed respectively.
And as shown in figure 14, in this variation, inner peripheral is installed on plane vibration film 11 of the framework 12 along toroidal.It is simultaneous
And the shape of plane vibration film 11 is not limited to octagonal shape.Than 8 summits it is more other it is polygon-shaped can also.Than 8
Summit it is less other it is polygon-shaped can also.Other regular polygon shape can also, be not that regular polygon shape can also.
And in such as Figure 14 or as shown in figure 15 examples, the configuration center C of the corner cut 13i such as drive devices of supporting frame
Relevant, install symmetrical scope（Scope within symmetrical 90 ° of example as shown in figure 14）.According to such a composition, very
The corresponding each corner cut 13i of good control plane vibration film 11 and each sound for being exported from framework 12 it is unbalanced.Can
Realize the deterioration of control tonequality well.
Claims (15)
1. plate speaker, including supporting frame, it is characterised in that：There is at least one phonation unit along supporting frame is axially arranged,
Each phonation unit projects the plane vibration film of sound wave and the framework installed of periphery and at the sound along plane vibration film by a vibration
The drive device of the vibration plane vibration film of sound signal action is formed, on the side of the trench digging part opened up on supporting frame
At least one pair of non-contact space is provided with, described non-contact space is edge on the trench digging portion bottom surface opened up on supporting frame
A corner cut on outer avris, the framework installed along the periphery of plane vibration film are bonded in the trench digging part opened up on supporting frame
On, described corner cut is an inner groovy on the trench digging portion bottom surface corner opened up on supporting frame, the corner cut and institute
State and form the non-contact space between plane vibration film.
2. the plate speaker as described in claim 1, it is characterised in that：The described trench digging part opened up on supporting frame
The non-contact space of two sides is distributed according to the Central Symmetry of drive device.
3. the plate speaker as described in claim 1, it is characterised in that：Described phonation unit has a plurality of.
4. the plate speaker as described in claim 1, it is characterised in that：The plane vibration film is billet shape.
5. the plate speaker as described in claim 1, it is characterised in that：The plane vibration film is toroidal.
6. the plate speaker as described in claim 1, it is characterised in that：The plane vibration film is polygon-shaped.
7. the plate speaker as described in claim 1, it is characterised in that：The framework is metal or hard material.
8. the plate speaker as described in claim 1 or 2, it is characterised in that：The drive device is one on York
Permanent magnet and the coil composition being sleeved on around magnet, coil coiling is on a coil support, coil support and permanent magnet
Between have a gap, coil support is pasted by a suspension joint and plane vibration film, the top of suspension joint and coil support
Matching, York is located in the recess of supporting frame bottom surface.
9. the plate speaker as described in claim 2, it is characterised in that：The volume circle axle center of coil is the center of drive device.
10. the plate speaker as described in claim 8, it is characterised in that：A magnetic strength iron plate plate is connected with permanent magnet upper end.
11. the plate speaker as described in claim 1 or 2, it is characterised in that：It is soft filled with property in the non-contact space
Soft material.
12. the plate speaker as described in claim 1, it is characterised in that：Each phonation unit is corresponded on the supporting frame
It is provided with least one through hole and positive and negative electrode binding post.
13. as any one plate speaker described in claim 1 or 4 or 5 or 6, it is characterised in that：Plane vibration film is frivolous material
Material composition.
14. the plate speaker as described in claim 1, it is characterised in that：The cross section of the inner groovy is rectangle.
15. the plate speaker as described in claim 1, it is characterised in that：At least 1 millimeter of the height of described inner groovy.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089954.XA CN103618979B (en) | 2013-03-20 | 2013-03-20 | Plate speaker |
| PCT/CN2014/071539 WO2014146518A1 (en) | 2013-03-20 | 2014-01-27 | Tablet loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089954.XA CN103618979B (en) | 2013-03-20 | 2013-03-20 | Plate speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103618979A CN103618979A (en) | 2014-03-05 |
| CN103618979B true CN103618979B (en) | 2018-04-06 |
Family
ID=50169683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310089954.XA Active CN103618979B (en) | 2013-03-20 | 2013-03-20 | Plate speaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103618979B (en) |
| WO (1) | WO2014146518A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9148727B1 (en) | 2014-03-19 | 2015-09-29 | Bose Corporation | Non-axisymmetric geometry for cloth loudspeaker suspensions |
| JP5867975B1 (en) * | 2015-06-11 | 2016-02-24 | 株式会社メイ | Speaker and earphone |
| CN105898648B (en) | 2016-05-24 | 2019-04-09 | 大连理工大学 | A kind of new type superthin sound impedance converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802032A (en) * | 2004-12-28 | 2006-07-12 | 日本电气株式会社 | Flat panel speaker, electronic device having same, and structure and method for mounting same |
| CN2886963Y (en) * | 2005-12-05 | 2007-04-04 | 程光 | Pre-stress vibrating film |
| JP2011101074A (en) * | 2009-11-04 | 2011-05-19 | Onkyo Sound & Vision Corp | Electrodynamic speaker and vibration member used therefor |
| CN102422650A (en) * | 2009-03-11 | 2012-04-18 | 三菱铅笔株式会社 | Speaker unit |
| CN102668598A (en) * | 2009-12-15 | 2012-09-12 | 日本电气株式会社 | Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125576C (en) * | 1999-09-22 | 2003-10-22 | 徐巍 | Very thin loudspeaker and its manufacture |
| CN102611969B (en) * | 2011-01-21 | 2014-09-10 | 峻扬实业股份有限公司 | Speaker |
-
2013
- 2013-03-20 CN CN201310089954.XA patent/CN103618979B/en active Active
-
2014
- 2014-01-27 WO PCT/CN2014/071539 patent/WO2014146518A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802032A (en) * | 2004-12-28 | 2006-07-12 | 日本电气株式会社 | Flat panel speaker, electronic device having same, and structure and method for mounting same |
| CN2886963Y (en) * | 2005-12-05 | 2007-04-04 | 程光 | Pre-stress vibrating film |
| CN102422650A (en) * | 2009-03-11 | 2012-04-18 | 三菱铅笔株式会社 | Speaker unit |
| JP2011101074A (en) * | 2009-11-04 | 2011-05-19 | Onkyo Sound & Vision Corp | Electrodynamic speaker and vibration member used therefor |
| CN102668598A (en) * | 2009-12-15 | 2012-09-12 | 日本电气株式会社 | Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014146518A1 (en) | 2014-09-25 |
| CN103618979A (en) | 2014-03-05 |
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