CN107682790A - A kind of loudspeaker - Google Patents

A kind of loudspeaker Download PDF

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Publication number
CN107682790A
CN107682790A CN201711050806.1A CN201711050806A CN107682790A CN 107682790 A CN107682790 A CN 107682790A CN 201711050806 A CN201711050806 A CN 201711050806A CN 107682790 A CN107682790 A CN 107682790A
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CN
China
Prior art keywords
loudspeaker
anchoring elastic
diving board
voice coil
conductive layer
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711050806.1A
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Chinese (zh)
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CN107682790B (en
Inventor
侯杰
李奎宝
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Shandong Gettop Acoustic Co Ltd
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Shandong Gettop Acoustic Co Ltd
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Priority to CN201710208780.2A priority Critical patent/CN106937224A/en
Priority to CN2017102087802 priority
Application filed by Shandong Gettop Acoustic Co Ltd filed Critical Shandong Gettop Acoustic Co Ltd
Publication of CN107682790A publication Critical patent/CN107682790A/en
Application granted granted Critical
Publication of CN107682790B publication Critical patent/CN107682790B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00Loudspeakers
    • H04R2400/11Aspects regarding the frame of loudspeaker transducers

Abstract

The invention discloses a kind of loudspeaker, including vibrational system, vibrational system includes diving board.The loudspeaker of the present invention, increases its range of linearity, and the two sections of arc designs of anchoring elastic body can increase its range of linearity;With higher structural strength, flexible material is indeformable after working long hours.Distortion reduces by more than 30%;Vibrational system uniform force, no rocking vibration produce, and rocking vibration probability is reduced to less than 10% by 90%;Flexible structure substitutes lead, and mechanical strength is better than voice coil line, and fatigue broken string caused by high frequency time is pullled will not be produced after loudspeaker long-term work, better than the hanging scheme of voice coil line in mainstream scheme and immerses metal layered scheme;Magnetic circuit system design symmetry makes voice coil loudspeaker voice coil each position uniform force, suppresses the generation of rocking vibration;Flexible structure can match with various main flow diaphragm materials is combined into loudspeaker, wideless by diaphragm material and thickness effect, use range;The mechanical strength of conductive layer is more than deposition conductive layer or electrolytic conduction layer.

Description

A kind of loudspeaker
Technical field
The present invention relates to a kind of loudspeaker, belong to technical field of electronic equipment.
Background technology
With the fast development of the electronics industry such as wireless telecommunications, as the primary terminal of wireless telecommunications, smart mobile phone is in work( Energy, outward appearance, reliability etc. are progressive obvious.The fast development of smart mobile phone has also driven the continuous of mobile phone electroacoustic industry simultaneously Renewal progress, the electro-acoustic element that people are correspondingly used in mobile phone propose new requirement:Small size, high-power, high loudness, shake greatly Width, low distortion.
Prior art:The conducting of conventional loudspeakers voice coil loudspeaker voice coil relies on two wires drawn from voice coil loudspeaker voice coil body.In routine In the design of loudspeaker, this two wire middle parts are vacantly fixed on diaphragm surface in loudspeaker, or by flexible glue, and draw Line endpoints need to be fixedly connected with the pad in frame, therefore lead overhead positions can produce relatively with vibrational system during speaker operation Vibration, broken string easily is produced because of the fatigue resistance of voice coil line deficiency after working long hours, causes speaker fail.Other lead Drawing the glue of shape and anchor leg can have an impact to the stress balance of vibrational system, cause product vibrational system not Produce rocking vibration with position discontinuity, so cause it is high-power under the conditions of loudspeaker vibrational system and magnetic circuit system Collision, influence the power output of loudspeaker.
Patent No. 201510204166.X proposes one kind using laser etching technology corrosion membrane surface and deposits conductive layer To replace the scheme of hanging voice coil line, by laser etching techniques in two symmetrical wire casings of surface etch of silica gel vibrating diaphragm, gold Category deposition technique deposits a conductive metal layer in every wire casing, the both ends weld part of every conductive metal layer is distinguished With voice coil loudspeaker voice coil and pad solder, so as to realize the connection of voice coil loudspeaker voice coil and pad.But because diaphragm thickness limits, conductive deposits layer intensity is not Foot, the fatigue cracking of sedimentary can not be prevented;And under same thickness, the tensile strength for depositing conductive layer is weaker than calendering conduction material Material, fatigue fracture is easily caused after vibrating for a long time.The other program can only tackle corrodible diaphragm material, such as silica gel material Material, use range are smaller.
Patent No. 201320868264.X uses FPC(Flexible printed circuit board)Diving board replaces the scheme of voice coil line, and it is logical Cross and weld tabs is arranged on FPC diving boards, realize that voice coil loudspeaker voice coil and the electric signal in the external world turn on using the elasticity arm of FPC diving boards, and Weld tabs and voice coil leads synchronous vibration, greatly reduce voice coil leads fracture or the risk to be come off from weld tabs.But current programme The larger range of linearity is not realized by the bending that FPC stereo directional is product short transverse, works long hours and is also easy to produce FPC Elasticity arm permanent deformation, cause speaker performance abnormal;And four elasticity arms are not axially symmetric settings, vibration system is not implemented Unite each position uniform force, can not solve the problems, such as rocking vibration.
Fig. 1 is patent No. 201320868264.X similar scheme FPC diving boards stress simulation figure, the depth in four elasticity arms Color Regional Representative's stress centrostigma.As shown in Figure 1, the stress concentrated position of four elasticity arms of this scheme is not axially symmetric, therefore This scheme can not fundamentally solve the problems, such as speaker vibration system discontinuity.
The content of the invention
The technical problem to be solved in the present invention is the deficiency for more than, there is provided a kind of loudspeaker, its range of linearity is increased, And there is higher structural strength, flexible material is indeformable after working long hours, low distortion design;Make speaker vibration system by Power is uniform, and no rocking vibration produces, and is advantageous to the high-power performance of loudspeaker;High mechanical strength, it is possible to increase the branch of vibrational system Intensity is supportted, suppresses the generation of rocking vibration, fatigue broken string caused by high frequency time is pullled will not be produced after loudspeaker long-term work;Make It is wide with scope, not by diaphragm material and thickness effect.
To solve above technical problem, the present invention uses following technical scheme:A kind of loudspeaker, including vibrational system, institute Stating vibrational system includes diving board.
A kind of prioritization scheme, four axially symmetric anchoring elastic bodies are designed with the diving board.
Further, the diving board also includes diving board body, terminal, the first pad terminal and the second pad terminal;
Described anchoring elastic body one end connects diving board body, anchoring elastic body other end connection terminal, is set on the diving board body It is equipped with the first pad terminal, the second pad terminal.
Further, the both ends width of the anchoring elastic body is more than or equal to or less than intermediate width.
Further, the anchoring elastic body is bent in in-plane.
Further, the anchoring elastic body is that one section of arc designs in stereo directional, and anchoring elastic body is symmetrical.
Further, the anchoring elastic body is that one section of arc designs in stereo directional, and anchoring elastic body is left-right asymmetry, arc Push up deflection to the right.
Further, the anchoring elastic body is that one section of arc designs in stereo directional, and anchoring elastic body is left-right asymmetry, arc Push up deflection to the left.
Further, the anchoring elastic body is that one section of arc designs in stereo directional, and anchoring elastic body is one section of arc both ends Not contour design.
Further, the anchoring elastic body designs in stereo directional for multistage arc.
Further, the anchoring elastic body includes two sections of arcs or three sections of arcs in stereo directional.
Further, the anchoring elastic body is combined using the shape of plane and stereo directional.
Wherein, in-plane refers to direction of the anchoring elastic body on parallel to paper plane;Stereo directional refers to anchoring elastic Body is in the direction in paper plane.
Further, the material of the diving board is flexible material.
Further, the diving board also includes conductive layer.
Further, the conductive layer is from calendering copper.
Further, the loudspeaker also includes ring-shaped pole pieces, and the ring-shaped pole pieces is that interior corner hollows out design, for keeping away Position anchoring elastic body.
Further, the vibrational system also include voice coil loudspeaker voice coil, top dome, flexible sheet, the voice coil loudspeaker voice coil, diving board body, top dome, Flexible sheet bonds together;
The flexible sheet has receiving space;
The diving board includes four axially symmetric anchoring elastic bodies, one end difference of four axially symmetric anchoring elastic bodies Diving board body is connected, the first pad terminal, the second pad terminal are provided with diving board body;
The other end of four axially symmetric anchoring elastic bodies distinguishes connection terminal, is additionally provided with conductive layer on the diving board, institute State conductive layer and be used for electric connection terminal and the first pad terminal or the second pad terminal;
The voice coil loudspeaker voice coil includes the first lead terminal and the second lead terminal;
First lead terminal and the second lead terminal are respectively welded in the first pad terminal and the second pad terminal;
The material of the diving board is flexible material;
The loudspeaker also includes magnetic circuit system;
The magnetic circuit system includes ring-shaped pole pieces, center pole piece, magnet steel and magnetic cover;The axially symmetric setting of ring-shaped pole pieces, institute Axially symmetric ring-shaped pole pieces is stated to be molded on frame;
Be provided with binding post in shown frame, the binding post is provided with four, four binding posts of frame respectively with Four terminals of diving board are welded to connect, and two of which binding post is connected with external electric signal, with described two binding posts point Two terminals not welded are electrically connected to the first pad terminal and the second pad terminal by conductive layer;
The magnetic circuit system is Nian Jie with frame cooperation, and the vibrational system is Nian Jie with frame cooperation, and composition is complete Loudspeaker.
Wherein, anchoring elastic body three-dimensional shape can by optimize any arc shape adapt to loudspeaker respective outer side edges and Adjust speaker performance;It can be raised one's voice by the respective outer side edges and adjustment for the radian quantity adaptation loudspeaker for increasing anchoring elastic body Device performance;By adjusting the levels of anchoring elastic body both sides anchoring elastic body can be made to be adapted to different height design.Grappling Elastomer may include the one section of arc or multistage arc of stereo directional bending;Either segment arc in multistage arc also can be by changing radian shape Shape meets loudspeaker mechanical engagement and performance requirement.Preferably, anchoring elastic body is combined using plane and three-dimensional shape, is entered One step improves the mechanically stressed state of anchoring elastic body, and increases the range of linearity of anchoring elastic body, is advantageous to the big of loudspeaker Amplitude, low distortion performance.
After the present invention uses above technical scheme, compared with prior art, there is advantages below:
1. the bending process of pair flexible material can increase its range of linearity, current two sections of arcs design can increase by more than 20% it is linear Scope;And there is higher structural strength, flexible material is indeformable after working long hours.These characteristics are advantageous to the low mistake of product True design, at present testing program distortion reduce by more than 30%;
2. the axially symmetric arrangement of anchoring elastic body can make speaker vibration system uniform force, no rocking vibration produces, favorably In the high-power performance of loudspeaker;The rocking vibration probability of testing program product is reduced to less than 10% by 90% at present;Such as Figure 16 Shown is the amplitude measurement result of traditional scheme, it is known that conventional loudspeakers produce in middle low frequency because of vibrational system discontinuity Rocking vibration;It is the test products amplitude measurement result of the present invention program shown in Figure 17, it is known that test specimen of the present invention is because of vibration System uniform force and balanced vibration, vibrational state are substantially better than traditional scheme;
Loudspeaker amplitude changes with the frequency of input signal;For five measurement points shown in Figure 15, due to rocking vibration In the presence of, in the low-frequency range that same frequency, particularly rocking vibration are violent, the amplitudes of five measurement points of same frequency can produce compared with Big difference, i.e., shown in Figure 16;Produced such as speaker vibration system uniform force, and without rocking vibration, then the five of same frequency The amplitude of measurement point can be essentially identical, i.e., shown in Figure 17;
3. flexible structure substitutes lead, flexible structure mechanical strength is better than voice coil line, height will not be produced after loudspeaker long-term work Fatigue broken string, better than the hanging scheme of voice coil line in mainstream scheme and immerses metal layered scheme caused by the frequency is pullled;
4. magnetic circuit system design symmetry can make voice coil loudspeaker voice coil each position uniform force, the generation of rocking vibration can be suppressed;
5. flexible structure can match with various main flow diaphragm materials is combined into loudspeaker, not by diaphragm material and thickness effect, make It is wide with scope;
6. the mechanical strength of conductive layer is more than deposition conductive layer or electrolytic conduction layer.
The present invention is described in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is patent No. 201320868264.X similar scheme FPC diving boards stress simulation figure;
Fig. 2 is diving board stress simulation figure of the present invention;
Fig. 3 is the explosive view of loudspeaker of the present invention;
Fig. 4 is the structural representation of diving board of the present invention;
Fig. 5 is the structural representation of the anchoring elastic body of the embodiment of the present invention 2;
Fig. 6 is the structural representation of the anchoring elastic body of the embodiment of the present invention 3;
Fig. 7 is the structural representation of the anchoring elastic body of the embodiment of the present invention 4;
Fig. 8 is the structural representation of the anchoring elastic body of the embodiment of the present invention 5;
Fig. 9 is the side structure schematic diagram of the anchoring elastic body of the embodiment of the present invention 6;
Figure 10 is the side structure schematic diagram of the anchoring elastic body of the embodiment of the present invention 7;
Figure 11 is the side structure schematic diagram of the anchoring elastic body of the embodiment of the present invention 8;
Figure 12 is the side structure schematic diagram of the anchoring elastic body of the embodiment of the present invention 9;
Figure 13 is the side structure schematic diagram of the anchoring elastic body of the embodiment of the present invention 10;
Figure 14 is the side structure schematic diagram of the anchoring elastic body of the embodiment of the present invention 11;
The point layout of Figure 15 loudspeaker amplitude measurements;
Figure 16 is traditional scheme loudspeaker amplitude measurement curve example;
Figure 17 is the present invention program loudspeaker amplitude measurement curve example;
In figure,
1- magnetic covers, 2- flexible sheets, 3- top domes, 4- diving boards, the pad terminals of 41a- first, the pad terminals of 41b- second, 42- diving boards Body, 43- anchoring elastic bodies, 44- terminals, 45- conductive layers, 5- voice coil loudspeaker voice coils, the lead terminals of 51a- first, 51b-the second lead ends Son, 6- frame, 61- binding posts, 7- ring-shaped pole pieces, 8- centers pole piece, 9- magnet steel, 91- centers magnet steel, the first sides of 92- magnet steel, The second sides of 93- magnet steel, the side magnet steel of 94- the 3rd, the side magnet steel of 95- the 4th.
Embodiment
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, now control illustrates this hair Bright embodiment.
A kind of 1 loudspeaker of embodiment
As in Figure 2-4, the present invention provides a kind of loudspeaker
The invention provides a kind of loudspeaker, and it includes the flexible sheet 2 of receiving space, top dome 3, diving board 4, voice coil loudspeaker voice coil 5, frame 6th, axially symmetric ring-shaped pole pieces 7, center pole piece 8, magnet steel 9 and magnetic cover 1.
The material of the diving board 4 is flexible material;
The voice coil loudspeaker voice coil 5 includes the first lead terminal 51a and the second lead terminal 51b;
The the first lead terminal 51a and the second lead terminal 51b of the voice coil loudspeaker voice coil 5 are respectively welded at two the first pads of diving board 4 On terminal 41a and the second pad terminal 41b, while voice coil loudspeaker voice coil 5, diving board 4, top dome 3, flexible sheet 2 bond together and form vibration System, the vibrational system avoid two the first lead terminal 51a and the second lead terminal 51b of voice coil loudspeaker voice coil 5 in motion process Relative motion between vibrational system, prevent fatigue damage caused by prolonged exercise.
Binding post 61 is provided with shown frame 6, the binding post 61 is provided with four, four wiring of frame 6 Terminal 61 is welded to connect with four terminals 44 of diving board 4 respectively, and two of which binding post 61 is connected with external electric signal, with institute State two terminals 44 that two binding posts 61 are respectively welded and the first pad terminal 41a and second are electrically connected to by conductive layer 45 Pad terminal 41b;
Two the first lead terminal 51a and second of first pad terminal 41a and the second pad terminal 41b electrical connection voice coil loudspeaker voice coils 5 draw Line terminals 51b.
Magnetic circuit system includes:Axially symmetric ring-shaped pole pieces 7, center pole piece 8, magnet steel 9 and magnetic cover 1.Wherein magnet steel 9 wraps The magnet steel 95 while magnet steel the 93, the 3rd is in magnet steel the 94, the 4th in magnet steel 92, second of magnet steel containing center 91 and first;It is wherein axially right The ring-shaped pole pieces 7 of title is molded on frame 6.The corner of ring-shaped pole pieces 7 hollows out, for keeping away the anchoring elastic body 43 of a diving board 4.
The axially symmetric of whole magnetic circuit can be achieved in the axially symmetric of ring-shaped pole pieces 7, and the full symmetric of magnetic circuit system is advantageous to The reduction of loudspeaker distortions.
The magnetic circuit system is Nian Jie with the cooperation of frame 6, and the vibrational system is Nian Jie with the cooperation of frame 6, composition Complete loudspeaker.
At work, external signal is connected to two binding posts 61 of frame 6 to the loudspeaker, in magnetic field after voice coil loudspeaker voice coil energization Vibrated in the presence of power, vibrational system vibration is promoted, so as to realize the function of loudspeaker.Because voice coil leads pass through flexible structure It is synchronized with the movement with vibrational system, the conductive material in flexible structure substitutes hanging voice coil line, avoids voice coil line overhanging portion Produce, fundamentally solve tired disconnection problem.
Axially symmetric anchoring elastic body makes the vibrational system uniform force of loudspeaker in addition, avoids rocking vibration, can Improve the power output of loudspeaker.
The diving board 4 designs four axially symmetric anchoring elastics to keep the stability of vibrational system on diving board 4 Body 43;
The other end of four axially symmetric anchoring elastic bodies 43 distinguishes connection terminal 44, and conduction is additionally provided with the diving board 4 Layer 45, the conductive layer 45 is used for the pad terminal 41a of electric connection terminal 44 and first or the second pad terminal 41b;
Anchoring elastic body 43 may include the one section of arc or multistage arc of stereo directional bending;
Either segment arc in multistage arc also can meet loudspeaker mechanical engagement and performance requirement by changing radian shape.
Preferably, anchoring elastic body 43 is combined using plane and three-dimensional shape, further improves anchoring elastic body Mechanically stressed state, and increase the range of linearity of anchoring elastic body, be advantageous to large amplitude, the low distortion performance of loudspeaker.
The three dimensional designs of anchoring elastic body 43 are more beneficial for improving the mechanically stressed state of anchoring elastic body, and increase grappling The range of linearity of elastomer, be advantageous to large amplitude, the low distortion performance of loudspeaker.
The corner of the ring-shaped pole pieces 7 hollows out, for keeping away the anchoring elastic body 43 of a flexible structure.The axial direction of ring-shaped pole pieces Axially symmetric, the full symmetric reduction for being advantageous to loudspeaker distortions of magnetic circuit system of whole magnetic circuit symmetrically can be achieved.
Four anchoring elastic bodies 43 of the diving board 4 are symmetric designs, therefore stress is axially symmetric, therefore can be made Vibrational system uniform force, as shown in Fig. 2 rocking vibration will not be produced.Corresponding with Fig. 1, the simulation result of Fig. 1 structures shows four Individual arm of force stress is asymmetric.
Wherein, in-plane refers to shape of the anchoring elastic body on parallel to paper plane;Stereo directional refers to anchoring elastic Body is in the shape in paper plane.
The present invention can increase its range of linearity to the bending process of flexible conducting material, and have higher structural strength, Flexible conducting material is avoided to be deformed after working long hours, and the range of linearity increased is advantageous to the low distortion design of product.It is flexible The symmetry arrangement of conductive material can solve the rocking vibration as caused by speaker vibration system discontinuity, be advantageous to loudspeaker High-power performance.Flexible structure substitutes lead, and magnetic circuit system design symmetry is beneficial to speaker performance.
A kind of 2 loudspeaker of embodiment
As shown in figure 5, the present invention also provides another loudspeaker, it is with the difference of embodiment 1:The anchoring elastic body 43 both ends and centre are wide.The diving board 4 divides two layers or three-decker.Double-layer structure is base material and conductive layer;Three-layered node Structure is base material, conductive layer and protective layer.Wherein the preferred polyimides of base material, conductive layer preferably roll copper.5 μ of the use of conductive layer 45- The calendering copper of 20 μ thickness, such a strength of materials are more than the deposition conductive layer of condition of equivalent thickness.This scenario-frame is simple, and easy technique is real It is existing, anchoring elastic body each position uniform force.
A kind of 3 loudspeaker of embodiment
As shown in fig. 6, the present invention also provides another loudspeaker, it is with the difference of above-described embodiment:Anchoring elastic body 43 both ends width is more than intermediate width.The diving board 4 divides two layers or three-decker.Double-layer structure is base material and conductive layer; Three-decker is base material, conductive layer and protective layer.Wherein the preferred polyimides of base material, conductive layer preferably roll copper.Conductive layer 45 Using the calendering copper of 5 μ -20 μ thickness, such a strength of materials is more than the deposition conductive layer of condition of equivalent thickness.This design can make grappling bullet Property body center section vibration deformation when reduced by stress, make anchoring elastic body centre position deform it is larger, be advantageous to raise one's voice The structure design and performance of device improve, and can preferentially be applied by limited time in the end positions oscillation space of anchoring elastic body 43.
A kind of 4 loudspeaker of embodiment
As shown in fig. 7, the present invention also provides another loudspeaker, it is with the difference of above-described embodiment:Anchoring elastic body 43 both ends width is less than intermediate width.The diving board 4 divides two layers or three-decker.Double-layer structure is base material and conductive layer; Three-decker is base material, conductive layer and protective layer.Wherein the preferred polyimides of base material, conductive layer preferably roll copper.Conductive layer 45 Using the calendering copper of 5 μ -20 μ thickness, such a strength of materials is more than the deposition conductive layer of condition of equivalent thickness.This design can make grappling bullet Property body 43 center section vibration deformation when increased by stress, make anchoring elastic body centre position deform it is smaller, in grappling bullet Property body center oscillation space by limited time can use this scheme.
A kind of 5 loudspeaker of embodiment
As shown in figure 8, the present invention also provides another loudspeaker, it is with the difference of above-described embodiment:Anchoring elastic body 43 be in certain bending shape in the plane, and the diving board 4 divides two layers or three-decker.Double-layer structure is base material and conductive layer; Three-decker is base material, conductive layer and protective layer.Wherein the preferred polyimides of base material, conductive layer preferably roll copper.Conductive layer 45 Using the calendering copper of 5 μ -20 μ thickness, such a strength of materials is more than the deposition conductive layer of condition of equivalent thickness.This design maximizing The length of anchoring elastic body 43 is improved, is advantageous to increase the range of linearity of anchoring elastic body 43, is advantageous to loudspeaker acoustical behavior Optimization.
A kind of 6 loudspeaker of embodiment
As shown in figure 9, the present invention also provides another loudspeaker, it is with the difference of above-described embodiment:The grappling bullet Property body 43 be that one section of arc designs, anchoring elastic body 43 includes a segment standard arc in stereo directional.Anchoring elastic body 43 is symmetrical. The diving board 4 divides two layers or three-decker.Double-layer structure is base material and conductive layer;Three-decker is base material, conductive layer and guarantor Sheath.Wherein the preferred polyimides of base material, conductive layer preferably roll copper.Conductive layer 45 uses the calendering copper of 5 μ -20 μ thickness, this The kind strength of materials is more than the deposition conductive layer of condition of equivalent thickness.
A kind of 7 loudspeaker of embodiment
As shown in Figure 10, the present invention also provides another loudspeaker, is with the difference of above-described embodiment:The grappling bullet Property body 43 be that one section of arc designs, anchoring elastic body 43 includes one section of arc in stereo directional.Anchoring elastic body 43 is left-right asymmetry.Arc Push up deflection to the right.The diving board 4 divides two layers or three-decker.Double-layer structure is base material and conductive layer;Three-decker be base material, Conductive layer and protective layer.Wherein the preferred polyimides of base material, conductive layer preferably roll copper.Conductive layer 45 is using 5 μ -20 μ thickness Roll copper, such a strength of materials is more than the deposition conductive layer of condition of equivalent thickness.Be advantageous to mechanical structure and keep away position, and grappling bullet can be improved The stress of property body 43, is advantageous to the raising of loudspeaker acoustical behavior.
A kind of 8 loudspeaker of embodiment
As shown in figure 11, the present invention also provides another loudspeaker, is with the difference of above-described embodiment:The grappling bullet Property body 43 be that one section of arc designs, anchoring elastic body 43 includes one section of arc in stereo directional.Anchoring elastic body 43 is left-right asymmetry.Arc Push up deflection to the left.The diving board 4 divides two layers or three-decker.Double-layer structure is base material and conductive layer;Three-decker be base material, Conductive layer and protective layer.Wherein the preferred polyimides of base material, conductive layer preferably roll copper.Conductive layer 45 is using 5 μ -20 μ thickness Roll copper, such a strength of materials is more than the deposition conductive layer of condition of equivalent thickness.Be advantageous to mechanical structure and keep away position, and grappling bullet can be improved The stress of property body 43, is advantageous to the raising of loudspeaker acoustical behavior.
A kind of 9 loudspeaker of embodiment
As shown in figure 12, the present invention also provides another loudspeaker, is with the difference of above-described embodiment:The grappling bullet Property body 43 is the not contour design in one section of arc both ends, and anchoring elastic body 43 includes one section of arc in stereo directional.43 liang of anchoring elastic body Hold contour design can not meet all mechanical solutions coordinated with loudspeaker miscellaneous part.The diving board 4 divide two layers or Three-decker.Double-layer structure is base material and conductive layer;Three-decker is base material, conductive layer and protective layer.Wherein base material is preferably poly- Acid imide, conductive layer preferably roll copper.Conductive layer 45 uses the calendering copper of 5 μ -20 μ thickness, and such a strength of materials is more than same uniform thickness The deposition conductive layer of degree.Such scheme can compatible loudspeaker miscellaneous part to greatest extent size design.
A kind of 10 loudspeaker of embodiment
As shown in figure 13, the present invention also provides another loudspeaker, is with the difference of above-described embodiment:The grappling bullet Property body 43 be the design of multistage arc, anchoring elastic body 43 includes two sections of arcs in stereo directional.Be advantageous to increase anchoring elastic body 43 Effective length, the range of linearity of increase anchoring elastic body 43, is advantageous to the raising of loudspeaker acoustical behavior.The diving board 4 is divided to two Layer or three-decker.Double-layer structure is base material and conductive layer;Three-decker is base material, conductive layer and protective layer.Wherein base material It is preferred that polyimides, conductive layer preferably rolls copper.Conductive layer 45 uses the calendering copper of 5 μ -20 μ thickness, and such a strength of materials is more than The deposition conductive layer of condition of equivalent thickness.
A kind of 11 loudspeaker of embodiment
As shown in figure 14, the present invention also provides another loudspeaker, is with the difference of above-described embodiment:The grappling bullet Property body 43 be the design of multistage arc, anchoring elastic body 43 includes three sections of arcs in stereo directional.Be advantageous to increase anchoring elastic body 43 Effective length, the range of linearity of increase anchoring elastic body 43, is advantageous to the raising of loudspeaker acoustical behavior.The diving board 4 is divided to two Layer or three-decker.Double-layer structure is base material and conductive layer;Three-decker is base material, conductive layer and protective layer.Wherein base material It is preferred that polyimides, conductive layer preferably rolls copper.Conductive layer 45 uses the calendering copper of 5 μ -20 μ thickness, and such a strength of materials is more than The deposition conductive layer of condition of equivalent thickness.
A kind of loudspeaker provided by the invention, can increase the bending process of flexible material its range of linearity, current two sections Arc design can increase by more than 20% range of linearity;And there is higher structural strength, flexible material is constant after working long hours Shape, These characteristics are advantageous to the low distortion design of product, and testing program distortion at present reduces by more than 30%;The axle of anchoring elastic body Speaker vibration system uniform force can be made to symmetry arrangement, no rocking vibration produces, and is advantageous to the high-power performance of loudspeaker; The rocking vibration probability of testing program product is reduced to less than 10% by 90% at present;Flexible structure substitutes lead, flexible structure machine Tool intensity is better than voice coil line, fatigue broken string caused by high frequency time is pullled will not be produced after loudspeaker long-term work, better than main flow side The hanging scheme of voice coil line in case and immerse metal layered scheme;Magnetic circuit system design symmetry can make voice coil loudspeaker voice coil each position stress equal It is even, the generation of rocking vibration can be suppressed;Flexible structure can match with various main flow diaphragm materials is combined into loudspeaker, not by diaphragm Material and thickness effect, use range are wide;The mechanical strength of conductive layer is more than deposition conductive layer or electrolytic conduction layer.
Citing described above for best mode for carrying out the invention, wherein the part do not addressed in detail is that this area is common The common knowledge of technical staff.Protection scope of the present invention is defined by the content of claim, any technology based on the present invention The equivalent transformation for enlightening and carrying out, also within protection scope of the present invention.

Claims (17)

1. a kind of loudspeaker, including vibrational system, it is characterised in that:The vibrational system includes diving board(4).
A kind of 2. loudspeaker as claimed in claim 1, it is characterised in that:The diving board(4)On be designed with four it is axially symmetric Anchoring elastic body(43).
A kind of 3. loudspeaker as claimed in claim 2, it is characterised in that:The diving board(4)Also include diving board body(42), end Son(44), the first pad terminal(41a)With the second pad terminal(41b);
The anchoring elastic body(43)One end connects diving board body(42), anchoring elastic body(43)Other end connection terminal(44), The diving board body(42)On be provided with the first pad terminal(41a), the second pad terminal(41b).
A kind of 4. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)Both ends width be more than Or equal to or less than intermediate width.
A kind of 5. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)It is curved in in-plane Folding.
A kind of 6. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)It is one in stereo directional Section arc design, anchoring elastic body(43)It is symmetrical.
A kind of 7. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)It is one in stereo directional Section arc design, anchoring elastic body(43)It is left-right asymmetry, arc top deflection to the right.
A kind of 8. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)It is one in stereo directional Section arc design, anchoring elastic body(43)It is left-right asymmetry, arc top deflection to the left.
A kind of 9. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)It is one in stereo directional Section arc design, anchoring elastic body(43)For the not contour design in one section of arc both ends.
A kind of 10. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)It is in stereo directional Multistage arc designs.
A kind of 11. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)In stereo directional bag Include two sections of arcs or three sections of arcs.
A kind of 12. loudspeaker as claimed in claim 2, it is characterised in that:The anchoring elastic body(43)Using plane and stand The shape in body direction is combined.
A kind of 13. loudspeaker as claimed in claim 1, it is characterised in that:The diving board(4)Material be flexible material.
A kind of 14. loudspeaker as claimed in claim 1, it is characterised in that:The diving board(4)Also include conductive layer(45).
A kind of 15. loudspeaker as claimed in claim 14, it is characterised in that:The conductive layer(45)From calendering copper.
A kind of 16. loudspeaker as claimed in claim 2, it is characterised in that:The loudspeaker also includes ring-shaped pole pieces(7), institute State ring-shaped pole pieces(7)Design is hollowed out for interior corner, for keeping away an anchoring elastic body(43).
A kind of 17. loudspeaker as claimed in claim 1, it is characterised in that:The vibrational system also includes voice coil loudspeaker voice coil(5), top dome (3), flexible sheet(2), the voice coil loudspeaker voice coil(5), diving board body(42), top dome(3), flexible sheet(2)Bond together;
The flexible sheet(2)With receiving space;
The diving board(4)Including four axially symmetric anchoring elastic bodies(43), four axially symmetric anchoring elastic bodies(43) One end connect diving board body respectively(42), diving board body(42)On be provided with the first pad terminal(41a), the second pad terminal (41b);
Four axially symmetric anchoring elastic bodies(43)The other end difference connection terminal(44), the diving board(4)On also set up There is conductive layer(45), the conductive layer(45)For electric connection terminal(44)With the first pad terminal(41a)Or the second pad end Son(41b);
The voice coil loudspeaker voice coil(5)Including the first lead terminal(51a)With the second lead terminal(51b);
First lead terminal(51a)With the second lead terminal(51b)It is respectively welded at the first pad terminal(41a)With second Pad terminal(41b)On;
The diving board(4)Material be flexible material;
The loudspeaker also includes magnetic circuit system;
The magnetic circuit system includes ring-shaped pole pieces(7), center pole piece(8), magnet steel(9)With magnetic cover(1);The ring-shaped pole pieces(7) Axially symmetric setting, the axially symmetric ring-shaped pole pieces(7)It is molded in frame(6)On;
Shown frame(6)On be provided with binding post(61), the binding post(61)Four are provided with, frame(6)Four Binding post(61)Respectively with diving board(4)Four terminals(44)It is welded to connect, two of which binding post(61)With external electrical Signal connects, with described two binding posts(61)Two terminals being respectively welded(44)Pass through conductive layer(45)It is electrically connected to One pad terminal(41a)With the second pad terminal(41b);
The magnetic circuit system and the frame(6)Coordinate bonding, the vibrational system and the frame(6)Coordinate bonding, composition Complete loudspeaker.
CN201711050806.1A 2017-03-31 2017-10-31 Loudspeaker Active CN107682790B (en)

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CN107682790B (en) 2020-10-27

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