CN207283806U

CN207283806U - Loudspeaker

Info

Publication number: CN207283806U
Application number: CN201721345130.4U
Authority: CN
Inventors: 张韬; 闫鑫
Original assignee: Shenzhen Jingtuo Innovation Technology Co Ltd
Current assignee: Shenzhen Jingtuo Innovation Technology Co Ltd
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2018-04-27
Anticipated expiration: 2027-10-18

Abstract

Disclose a kind of loudspeaker, by setting going out acoustic aperture and increasing voice coil loudspeaker voice coil on vibrating diaphragm for multiple circular magnetic circuit system central shafts on a speaker, the nonlinear characteristic of loudspeaker can be reduced, suppresses the total harmonic distortion of loudspeaker, while the sensitivity of loudspeaker can also be improved.

Description

Loudspeaker

Technical field

It the utility model is related to electronic multimedia devices field, and in particular to a kind of loudspeaker.

Background technology

Patent CN203775399U proposes a kind of loudspeaker of balanceable magnet driving.Loudspeaker are also known as " loudspeaker ", are provided with Upper and lower two annular magnets, and voice coil loudspeaker voice coil is set among upper and lower annular magnet.This patent improves the magnetic field of conventional loudspeakers Distribution character, the magnetic field of conventional loudspeakers is maximum for voice coil loudspeaker voice coil equilbrium position magnetic induction intensity, voice coil vibrations maximum position magnetic induction Intensity is minimum；And this patent is on the contrary, voice coil loudspeaker voice coil equilbrium position magnetic induction intensity is minimum, vibration maximum position magnetic induction intensity is maximum. Understood according to formula F=I*B*L (F is driving force, and I is electric current, and B is magnetic induction intensity, and L is voice coil loudspeaker voice coil line length), conventional loudspeakers Driving force F reduce change since B values increase with voice coil loudspeaker voice coil displacement and nonlinear characteristic occur, it is final so that speaker product it is total Harmonic distortion (THD) is increased.And the Distribution Characteristic of Magnetic Field of this patent loudspeaker and the Distribution Characteristic of Magnetic Field of conventional loudspeakers on the contrary, Reduce the nonlinear characteristic of loudspeaker, it is suppressed that total harmonic distortion.

But due to, there is also Distribution of Magnetic Field, and then being reduced near the through hole of the annular magnet of this patent near voice coil loudspeaker voice coil Magnetic induction intensity, reduces the sensitivity of loudspeaker, so being compared with conventional loudspeakers, sensitivity is not lifted accordingly, is not had The advantage of standby sensitivity.

Utility model content

In view of this, the disclosure provides a kind of loudspeaker, can reduce the nonlinear characteristic of loudspeaker, suppress loudspeaker Total harmonic distortion, while the sensitivity of loudspeaker can also be improved.

Present disclose provides a kind of loudspeaker, including：

Magnetic circuit system, formed with magnetostatic field；

Vibrational system, including vibrating diaphragm and the first voice coil loudspeaker voice coil, are arranged in the magnetostatic field；

First frame and the second frame, suitable for the fixation magnetic circuit system and the vibrational system；

Wherein, the loudspeaker formed with it is multiple go out acoustic aperture, the multiple orifice ring of speaking is around the center of the magnetic circuit system Axis is set.

Preferably, first frame and second frame are oppositely arranged, wherein, first frame and described second It is the through hole that multiple circular arcs are in turn connected to form, the madial wall of the through hole and the magnetic circuit that cross section is both provided with the inside of frame System is formed after being fixedly connected multiple independent goes out acoustic aperture.

Preferably, the magnetic circuit system includes：

First multipole magnet, with first frame be fixedly connected to form it is multiple go out acoustic aperture；

Second multipole magnet, with second frame be fixedly connected to form it is multiple go out acoustic aperture；

Wherein, the vibrational system is arranged between first multipole magnet and second multipole magnet.

Preferably, the magnetic circuit system includes：

First magnet and the first magnetic bowl, first magnet, which is fixed in the first magnetic bowl, forms the first magnetic circuit module；

Second magnet and the second magnetic bowl, second magnet, which is fixed in the second magnetic bowl, forms the second magnetic circuit module；

Wherein, the first magnetic circuit module and the second magnetic circuit module are individually fixed in first frame and described the In two frame, the vibrational system is arranged between the first magnetic circuit module and the second magnetic circuit module.

Preferably, the magnetic circuit system includes：

3rd magnet and the 3rd magnetic bowl, the 3rd magnet, which is fixed in the 3rd magnetic bowl, forms the 3rd magnetic circuit module；

4th magnet and the 4th magnetic bowl, the 4th magnet, which is fixed in the 4th magnetic bowl, forms the 4th magnetic circuit module；

Wherein, the bottom of the 3rd magnetic bowl and the 4th magnetic bowl be both provided with it is multiple go out acoustic aperture, the 3rd magnet And the 4th be respectively formed annular gap between magnet and the 3rd magnetic bowl and the 4th magnetic bowl, the annular gap with it is the multiple go out Acoustic aperture connects.

Preferably, the 3rd magnetic circuit module and the 4th magnetic circuit module are individually fixed in first frame and described In second frame, the vibrational system is arranged between the 3rd magnetic circuit module and the 4th magnetic circuit module.

Preferably, the loudspeaker further includes：

Second voice coil loudspeaker voice coil, is arranged on the vibrating diaphragm, and annular space is formed with first voice coil loudspeaker voice coil；

3rd frame, including positive electrode and negative electrode；

Wherein, first multipole magnet is provided with first through hole, and second multipole magnet is provided with the second through hole, institute State the 3rd frame to be arranged in second through hole, be electrically connected by positive and negative electrode and first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil So that the driving force of first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil is superimposed.

Preferably, the loudspeaker further includes：

3rd frame, including positive electrode and negative electrode；

Wherein, the first magnetic circuit module is provided with first through hole, and the second magnetic circuit module is provided with the second through hole, institute State the 3rd frame to be arranged in second through hole, be electrically connected by positive and negative electrode and first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil So that the driving force of first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil is superimposed.

Preferably, the loudspeaker further includes：

3rd frame, including positive electrode and negative electrode；

Wherein, the 3rd magnetic circuit module is provided with first through hole, and the 4th magnetic circuit module is provided with the second through hole, institute State the 3rd frame to be arranged in second through hole, be electrically connected by positive and negative electrode and first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil So that the driving force of first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil is superimposed.

Preferably, the vibrating diaphragm includes：

First ring, it is concentric with the vibrating diaphragm center；

Second ring, cyclic structure is concentrically formed with first ring；And

Vault, is arranged on the vibrating diaphragm that second ring surrounds, with extended high frequency frequency response.

Preferably, first voice coil loudspeaker voice coil is arranged between first ring and second ring, second voice coil loudspeaker voice coil It is arranged between second ring and the vault, is suitable for first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil Independent Vibration.

The disclosure provides a kind of loudspeaker, goes out acoustic aperture by set multiple circular magnetic circuit system central shafts on a speaker And increase voice coil loudspeaker voice coil on vibrating diaphragm, the nonlinear characteristic of loudspeaker can be reduced, suppresses the total harmonic distortion of loudspeaker, at the same time also The sensitivity of loudspeaker can be improved.

Brief description of the drawings

By the description to the utility model embodiment referring to the drawings, the above-mentioned and other mesh of the utility model , feature and advantage will be apparent from, in the accompanying drawings：

Fig. 1 is the exploded perspective view of the loudspeaker of the utility model first embodiment；

Fig. 2 is the diagrammatic cross-section of the loudspeaker of the utility model first embodiment；

Fig. 3 is the distribution schematic diagram of magnetic induction line near the voice coil loudspeaker voice coil of the utility model first embodiment；

Fig. 4 is the distribution schematic diagram of magnetic induction intensity near the voice coil loudspeaker voice coil of the utility model first embodiment；

Fig. 5 be the magnetic induction intensity of the utility model first embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers with The curve synoptic diagram of voice coil position change；

Fig. 6 is the exploded perspective view of the loudspeaker of the utility model second embodiment；

Fig. 7 is the diagrammatic cross-section of the loudspeaker of the utility model second embodiment；

Fig. 8 is the distribution schematic diagram of magnetic induction line near the voice coil loudspeaker voice coil of the utility model second embodiment；

Fig. 9 is the distribution schematic diagram of magnetic induction intensity near the voice coil loudspeaker voice coil of the utility model second embodiment；

Figure 10 is the magnetic induction intensity of the utility model second embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers The curve synoptic diagram changed with voice coil position；

Figure 11 is the exploded perspective view of the loudspeaker of the utility model 3rd embodiment；

Figure 12 is the diagrammatic cross-section of the loudspeaker of the utility model 3rd embodiment；

Figure 13 is the distribution schematic diagram of magnetic induction line near the voice coil loudspeaker voice coil of the utility model 3rd embodiment；

Figure 14 is the distribution schematic diagram of magnetic induction intensity near the voice coil loudspeaker voice coil of the utility model 3rd embodiment；

Figure 15 is the magnetic induction intensity of the utility model 3rd embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers The curve synoptic diagram changed with voice coil position；

Figure 16 be the utility model first embodiment, second embodiment and 3rd embodiment loudspeaker magnetic induction intensity with The curve synoptic diagram that the magnetic induction intensity of conventional loudspeakers changes with voice coil position；

Figure 17 is the exploded perspective view of the loudspeaker of the utility model fourth embodiment；

Figure 18 is the diagrammatic cross-section of the loudspeaker of the utility model fourth embodiment；

Figure 19 is the distribution schematic diagram of magnetic induction line near the voice coil loudspeaker voice coil of the utility model fourth embodiment；

Figure 20 is the distribution schematic diagram of magnetic induction intensity near the voice coil loudspeaker voice coil of the utility model fourth embodiment；

Figure 21 is the magnetic induction intensity of the utility model fourth embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers The curve synoptic diagram changed with voice coil position；

Figure 22 is the exploded perspective view of the loudspeaker of the 5th embodiment of the utility model；

Figure 23 is the diagrammatic cross-section of the loudspeaker of the 5th embodiment of the utility model；

Figure 24 is the distribution schematic diagram of magnetic induction line near the voice coil loudspeaker voice coil of the 5th embodiment of the utility model；

Figure 25 is the distribution schematic diagram of magnetic induction intensity near the voice coil loudspeaker voice coil of the 5th embodiment of the utility model；

Figure 26 is the magnetic induction intensity of the 5th embodiment loudspeaker of the utility model and the magnetic induction intensity of conventional loudspeakers The curve synoptic diagram changed with voice coil position；

Figure 27 is the diagrammatic cross-section of the loudspeaker of the utility model sixth embodiment；

Figure 28 is the diagrammatic cross-section of the loudspeaker of the 7th embodiment of the utility model；

Figure 29 is the diagrammatic cross-section of the loudspeaker of the 8th embodiment of the utility model；

Figure 30 is the structure diagram of the vibrating diaphragm of fourth, fifth, six, eight embodiment of the utility model.

Embodiment

The utility model is described below based on embodiment, but the utility model is not restricted to these implementations Example.It is detailed to describe some specific detail sections below in the detailed description of the utility model.To people in the art The description of part can also understand the utility model completely without these details for member.In order to avoid obscuring the utility model Essence, the not narration in detail of known method, process, flow, element and circuit.

In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and What attached drawing was not necessarily drawn to scale.

Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc. Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but not limited to " Justice.

In the description of the utility model, it is to be understood that term " first ", " second " etc. are only used for description purpose, And it is not intended that instruction or hint relative importance.In addition, in the description of the utility model, it is unless otherwise indicated, " more It is a " it is meant that two or more.

Unless otherwise clearly defined and limited, the term such as term " installation ", " connected ", " connection ", " fixation " should be done extensively Reason and good sense solution, for example, it may be fixedly connected or be detachably connected, or integrally；Can mechanically connect, can also It is to be electrically connected；Can be directly connected, can also be indirectly connected by intermediary, can be connection inside two elements or The interaction relationship of two elements, unless otherwise restricted clearly.For the ordinary skill in the art, Ke Yigen Understand concrete meaning of the above-mentioned term in the utility model according to concrete condition.

Embodiment one：

Fig. 1 and Fig. 2 is the structure diagram of the loudspeaker of the present embodiment.As shown in the figure, loudspeaker include magnetic circuit system A, Vibrational system B, the first frame C and the second frame D.Wherein, the first frame C and the second frame D are oppositely arranged to form accommodating cavity. Magnetic circuit system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in.First frame C, second What frame D and magnetic circuit system A forms multiple circular magnetic circuit system A central shaft after interfixing was set goes out acoustic aperture E.Vibrational system B is in magnetic circuit system A through the sound that vibration produces by going out acoustic aperture E outflows.

First frame C and the second frame D structures are identical, the shell of loudspeaker are primarily formed, for fixing other structures.The The through hole that cross section is in turn connected to form for multiple circular arcs, the arc of through hole are both provided with the inside of one frame C and the second frame D Madial wall is formed after being fixedly connected with magnetic circuit system A multiple independent goes out acoustic aperture E.It is multiple go out acoustic aperture E in magnetic circuit system A Mandrel is set.Vibrational system B sounding is spread out of along acoustic aperture E is gone out.In the present embodiment, the first frame C and the second frame D structure phases Together, therefore loudspeaker front and back is spoken, pore size, quantity are identical.Preferably, can going out by varying one of frame Acoustic aperture size or quantity are to optimize the performance of loudspeaker.

Magnetic circuit system A includes the first multipole magnet 1 and the second multipole magnet 2.First multipole magnet 1 is consolidated by bonding way Due on the madial wall of the first frame C, with the madial wall of the first frame C formed it is multiple go out acoustic aperture E.Second multipole magnet 2 passes through Bonding way is fixed on the madial wall of the second frame D, with the madial wall of the second frame D formed it is multiple go out acoustic aperture E.First multipole 1 and second multipole magnet 2 of magnet is oppositely arranged, and forms magnetostatic field between the two.First multipole magnet 1 and the second multipole magnet 2 Magnetize to be formed by one piece of magnet subregion.First multipole magnet 1 includes the first multipole magnet interior zone 11 and the first multipole Magnet perimeter 12.Second multipole magnet 2 includes the second multipole magnet interior zone 21 and the second multipole magnet perimeter 22.Wherein, the first multipole magnet interior zone 11 and 12 magnetizing direction of the first multipole magnet perimeter are opposite；Second multipole magnetic 21 and second multipole magnet perimeter of iron interior zone, 22 magnetizing directions are opposite；First multipole magnet interior zone 11 and second 21 magnetizing direction of multipole magnet interior zone is opposite.

Vibrational system B is arranged in the magnetostatic field that the first multipole magnet 1 and the second multipole magnet 2 are formed.Vibrational system B bags 3 and first voice coil loudspeaker voice coil 4 of vibrating diaphragm is included, the first voice coil loudspeaker voice coil 4 is bonded and fixed on vibrating diaphragm 3.3 edge side of vibrating diaphragm is Nian Jie with the first frame C solid Fixed, opposite side is adhesively fixed with the second frame D.The width of first voice coil loudspeaker voice coil, 4 coiling is compared with the height of 4 coiling of the first voice coil loudspeaker voice coil Width, cross sectional shape are flat.The optional scope of line footpath of first voice coil loudspeaker voice coil 4 is 0.02mm-0.1mm.First voice coil loudspeaker voice coil 4 is placed in magnetostatic field In, stress drives 3 vibration sounding of vibrating diaphragm after the first voice coil loudspeaker voice coil 4 connects electric signal.Vibrating diaphragm 3 includes edge ring and mid-plane area Domain.To improve the rigidity of vibrating diaphragm 3 intermediate region, lift high frequency frequency response performance, can plane domain paste set stiffening plate or 3 intermediate region of vibrating diaphragm is arranged to arch crown by person, and vault can be integrally formed with ring, and dome shape is firm compared to flat shape Property increase.If the rigidity still deficiency of vault can also paste one layer of stiffening plate increase vault rigidity on vault, high frequency is lifted Frequency response performance.The optional scope of 3 thickness of vibrating diaphragm is 10um-100um.Dilval, stainless steel, poly- naphthalene can be selected in the material of vibrating diaphragm 3 The materials such as naphthalate fiber (PEN), polyether ketone fiber (PEEK), the glass-fiber reinforced epoxy resin of FR4.

In the present embodiment, the shape of loudspeaker can be the shapes such as circular, square or track type.First multipole magnet 1, Two multipole magnets 2 and the shape of vibrating diaphragm 3 and the shape of loudspeaker are identical, can also be arranged to round according to the different shape of loudspeaker The shapes such as shape, square or track type.First voice coil loudspeaker voice coil 4 is arranged to corresponding circular ring shape, side's annular or runway annular etc..First multipole The interior zone 11,21 of 1 and second multipole magnet 2 of magnet is identical with the shape of the first multipole magnet 1 and the second multipole magnet 2, The perimeter 12,22 of corresponding first multipole magnet, 1 and second multipole magnet 2 could be provided as corresponding circular ring shape, Fang Huan Shape or runway annular etc..Preferably, loudspeaker is provided in round, the first multipole magnet 1, the second multipole magnet 2, the shape of vibrating diaphragm 3 Shape is provided in round, and the first voice coil loudspeaker voice coil 4 is circular ring shape, and the interior zone 11,21 of the first multipole magnet 1 and the second multipole magnet 2 is The perimeter 12,22 of circle, the first multipole magnet 1 and the second multipole magnet 2 is circular ring shape.

The loudspeaker of the present embodiment by emulation, can be calculated the first voice coil loudspeaker voice coil 4 nearby the distribution results of magnetic induction line and The distribution results of magnetic induction intensity near first voice coil loudspeaker voice coil 4.As shown in Figure 3 and Figure 4, Fig. 3 is magnetic strength near the voice coil loudspeaker voice coil of the present embodiment The distribution schematic diagram of line, Fig. 4 are the distribution schematic diagrams of magnetic induction intensity near the voice coil loudspeaker voice coil of the present embodiment.First voice coil loudspeaker voice coil, 4 institute in Fig. 3 Directly over region and the first voice coil loudspeaker voice coil 4 and underface region is the interior zone of the first multipole magnet 1 and the second multipole magnet 2 11st, 21 near the boundary of perimeter 12,22.The magnetic direction in this region is horizontal, with raising one's voice for patent CN203775399U Device is compared, and magnetic field is more concentrated.The vertical paper in first voice coil loudspeaker voice coil, 4 internal current direction, according to left hand rule, the first sound in magnetostatic field Circle 4, which is powered, can be subject to the driving force of direction up or down.First voice coil loudspeaker voice coil, 4 stress up-down vibration, drives 3 vibration sounding of vibrating diaphragm. Black region represents the region of magnetic induction intensity maximum in Fig. 4, and gray area represents the relatively small region of magnetic induction intensity, face Color from depth to shallow, represents magnetic induction intensity from large to small.The first voice coil loudspeaker voice coil 4 can be determined according to the distributed areas of magnetic induction intensity Size.When the first voice coil loudspeaker voice coil 4, which is powered, to move up and down, the magnetic induction intensity inside the first voice coil loudspeaker voice coil 4 changes, the bigger magnetic strength of amplitude Answer intensity bigger.

Fig. 5 is that the magnetic induction intensity of the present embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers change with voice coil position Curve synoptic diagram.The curve that C1 changes for the magnetic induction intensity of conventional loudspeakers with voice coil position in Fig. 5, C2 is the present embodiment The curve that the magnetic induction intensity of loudspeaker changes with voice coil position.Transverse axis represents voice coil position in Fig. 5, and 0 represents resting position, just Value represents voice coil loudspeaker voice coil and vibrates relevant position upwards, and negative value represents voice coil loudspeaker voice coil and vibrates relevant position downwards；The longitudinal axis represents magnetic induction intensity value. From two curves of C1, C2 relatively：The first voice coil loudspeaker voice coil of the present embodiment 4 is minimum in the magnetic induction intensity of resting position 0, the first sound The bigger magnetic induction intensity of amplitude is bigger up or down for circle 4, and conventional loudspeakers are on the contrary, the magnetic induction of voice coil loudspeaker voice coil resting position 0 Maximum intensity, the bigger magnetic induction intensity of voice coil loudspeaker voice coil amplitude are smaller.The magnetic induction intensity of the first voice coil loudspeaker voice coil of the present embodiment 4 is comprehensively higher than tradition The magnetic induction intensity of loudspeaker voice coil, is eventually exhibited as loudspeaker sensitivity lifting.In addition, the magnetic of the first voice coil loudspeaker voice coil of the present embodiment 4 Induction with the displacement increase of the first voice coil loudspeaker voice coil 4 and increased characteristic advantageously reduces the nonlinear characteristic of loudspeaker, suppress The total harmonic distortion of loudspeaker.

Embodiment two：

Fig. 6 and Fig. 7 is the structure diagram of the loudspeaker of the present embodiment.As shown in the figure, loudspeaker include magnetic circuit system A, Vibrational system B, the first frame C and the second frame D.Wherein, the first frame C and the second frame D are oppositely arranged to form accommodating cavity. Magnetic circuit system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in.First frame C, second What frame D and magnetic circuit system A forms multiple circular magnetic circuit system A central shaft after interfixing was set goes out acoustic aperture E.Vibrational system B is in magnetic circuit system A through the sound that vibration produces by going out acoustic aperture E outflows.

Magnetic circuit system A includes the first magnetic circuit module 5 and the second magnetic circuit module 6.First magnetic circuit module 5 is consolidated by bonding way Due on the madial wall of the first frame C, with the madial wall of the first frame C formed it is multiple go out acoustic aperture E.Second magnetic circuit module 6 passes through Bonding way is fixed on the madial wall of the second frame D, with the madial wall of the second frame D formed it is multiple go out acoustic aperture E.First magnetic circuit 5 and second magnetic circuit module 6 of module is oppositely arranged, and forms magnetostatic field between the two.First magnetic circuit module 5 includes 51 He of the first magnet First magnetic bowl 52.Second magnetic circuit module 6 includes the second magnet 61 and the second magnetic bowl 62.First magnet 51 and the second magnet 61 are distinguished It is bonded in the first magnetic bowl 52 and the second magnetic bowl 62, the outside diameter of magnet is equal to the internal diameter of magnetic bowl, and magnet and magnetic bowl are close after bonding Fitting.First magnet 51 and the second magnet 61 magnetize along magnet longitudinal direction Zone Full, the first magnet 51 and the second magnetic The magnetizing direction of iron 61 is opposite.First magnet 51 and the first magnetic bowl 52, the second magnet 61 and the second magnetic bowl 62 are collectively forming one Magnetostatic field.

Vibrational system B is arranged in the magnetostatic field that the first magnetic circuit module 5 and the second magnetic circuit module 6 are formed.Vibrational system B bags 3 and first voice coil loudspeaker voice coil 4 of vibrating diaphragm is included, the first voice coil loudspeaker voice coil 4 is bonded and fixed on vibrating diaphragm 3.3 edge side of vibrating diaphragm is Nian Jie with the first frame C solid Fixed, opposite side is adhesively fixed with the second frame D.The width of first voice coil loudspeaker voice coil, 4 coiling is compared with the height of 4 coiling of the first voice coil loudspeaker voice coil Width, cross sectional shape are flat.The optional scope of line footpath of first voice coil loudspeaker voice coil 4 is 0.02mm-0.1mm.First voice coil loudspeaker voice coil 4 is placed in magnetostatic field In, stress drives 3 vibration sounding of vibrating diaphragm after the first voice coil loudspeaker voice coil 4 connects electric signal.Vibrating diaphragm 3 includes edge ring and mid-plane area Domain.To improve the rigidity of vibrating diaphragm 3 intermediate region, lift high frequency frequency response performance, can plane domain paste set stiffening plate or 3 intermediate region of vibrating diaphragm is arranged to arch crown by person, and vault can be integrally formed with ring, and dome shape is firm compared to flat shape Property increase.If the rigidity still deficiency of vault can also paste one layer of stiffening plate increase vault rigidity on vault, high frequency is lifted Frequency response performance.The optional scope of 3 thickness of vibrating diaphragm is 10um-100um.Dilval, stainless steel, poly- naphthalene can be selected in the material of vibrating diaphragm 3 The materials such as naphthalate fiber (PEN), polyether ketone fiber (PEEK), the glass-fiber reinforced epoxy resin of FR4.

In the present embodiment, the shape of loudspeaker can be the shapes such as circular, square or track type.First magnetic circuit module 5, Two magnetic circuit modules 6 and the shape of vibrating diaphragm 3 and the shape of loudspeaker are identical, can also be arranged to round according to the different shape of loudspeaker The shapes such as shape, square or track type.First voice coil loudspeaker voice coil 4 is arranged to corresponding circular ring shape, side's annular or runway annular etc..Preferably, Loudspeaker is provided in round, and the first magnetic circuit module 5, the second magnetic circuit module 6 and vibrating diaphragm 3 are shaped to circle, the first voice coil loudspeaker voice coil 4 It is arranged to circular ring shape.

The loudspeaker of the present embodiment by emulation, can be calculated the first voice coil loudspeaker voice coil 4 nearby the distribution results of magnetic induction line and The distribution results of magnetic induction intensity near first voice coil loudspeaker voice coil 4.As shown in Figure 8 and Figure 9, Fig. 8 is magnetic strength near the voice coil loudspeaker voice coil of the present embodiment The distribution schematic diagram of line, Fig. 9 are the distribution schematic diagrams of magnetic induction intensity near the voice coil loudspeaker voice coil of the present embodiment.First voice coil loudspeaker voice coil, 4 institute in Fig. 8 Directly over region and the first voice coil loudspeaker voice coil 4 and underface region is the first magnet 51 and the first magnetic bowl 52, the second magnet 61 and second Near the boundary of magnetic bowl 62.The magnetic induction line direction in this region is horizontal, and compared with the loudspeaker of patent CN203775399U, magnetic field is more Add concentration.The vertical paper in first voice coil loudspeaker voice coil, 4 internal current direction, according to left hand rule, the first voice coil loudspeaker voice coil 4 is powered and can be subject in magnetostatic field The driving force of direction up or down.First voice coil loudspeaker voice coil, 4 stress up-down vibration, drives 3 vibration sounding of vibrating diaphragm.Black region in Fig. 9 Represent the higher region of magnetic induction intensity, gray area represents the relatively low region of magnetic induction intensity, color from depth to shallow, table Show magnetic induction intensity from large to small.From fig. 9, it can be seen that the magnetic induction intensity of 4 vertical lower regions of the first voice coil loudspeaker voice coil is stronger, and connect The region of nearly magnetic circuit module is most strong, and the intermediate region away from magnetic circuit module is weaker.Can be according to the distributed areas of magnetic induction intensity Determine the size of the first voice coil loudspeaker voice coil 4.When the first voice coil loudspeaker voice coil 4, which is powered, to move up and down, the magnetic induction intensity inside the first voice coil loudspeaker voice coil 4 becomes Change, amplitude is bigger, and magnetic induction intensity is bigger.

Figure 10 is that the magnetic induction intensity of the present embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers become with voice coil position The curve synoptic diagram of change.The curve that C1 changes for the magnetic induction intensity of conventional loudspeakers with voice coil position in Figure 10, C4 is this reality Apply the curve that the magnetic induction intensity of a loudspeaker changes with voice coil position.Transverse axis represents voice coil position in Figure 10, and 0 represents rest position Put, vibrate relevant position upwards on the occasion of representing voice coil loudspeaker voice coil, negative value represents voice coil loudspeaker voice coil and vibrates relevant position downwards；It is strong that the longitudinal axis represents magnetic induction Angle value.From two curves of C1, C4 relatively：The first voice coil loudspeaker voice coil of the present embodiment 4 is minimum in the magnetic induction intensity of resting position 0, The bigger magnetic induction intensity of amplitude is bigger up or down first voice coil loudspeaker voice coil 4, and conventional loudspeakers are on the contrary, voice coil loudspeaker voice coil resting position 0 Magnetic induction intensity is maximum, and the bigger magnetic induction intensity of voice coil loudspeaker voice coil amplitude is smaller.The magnetic induction intensity of the first voice coil loudspeaker voice coil of the present embodiment 4 is comprehensively high In the magnetic induction intensity of conventional loudspeakers voice coil loudspeaker voice coil, loudspeaker sensitivity lifting is eventually exhibited as.In addition, the first voice coil loudspeaker voice coil of the present embodiment 4 magnetic induction intensity with the displacement increase of the first voice coil loudspeaker voice coil 4 and increased characteristic advantageously reduces the nonlinear characteristic of loudspeaker, Suppress the total harmonic distortion of loudspeaker.

Embodiment three：

Figure 11 and Figure 12 is the structure diagram of the loudspeaker of the present embodiment.As shown in the figure, loudspeaker includes magnetic circuit system A, vibrational system B, the first frame C and the second frame D.Wherein, the first frame C and the second frame D is oppositely arranged to form accommodating sky Chamber.Magnetic circuit system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in.In magnetic circuit system A Be provided with the central shaft setting of multiple circular magnetic circuit system A goes out acoustic aperture E.Vibrational system B is produced in magnetic circuit system A through vibration Sound by go out acoustic aperture E outflow.

First frame C and the second frame D structures are identical, the shell of loudspeaker are primarily formed, for fixing other structures.The Cylindrical hole is disposed as on the inside of one frame C and the second frame D.

Magnetic circuit system A includes the 3rd magnetic circuit module 7 and the 4th magnetic circuit module 8.3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 appearance and size and the cylindrical hole size fit of frame.3rd magnetic circuit module 7 is fixed on the first frame by bonding way In the cylindrical hole of C.4th magnetic circuit module 8 is fixed on by bonding way in the cylindrical hole of the second frame D.3rd magnetic circuit mould 7 and the 4th magnetic circuit module 8 of block is oppositely arranged, and forms magnetostatic field between the two.3rd magnetic circuit module 7 includes the 3rd magnet 71 and the Three magnetic bowls 72.4th magnetic circuit module 8 includes the 4th magnet 81 and the 4th magnetic bowl 82.The bottom of 3rd magnetic bowl 72 and the 4th magnetic bowl 82 It is both provided with multiple cylinders and goes out acoustic aperture E.It is multiple go out acoustic aperture E around the centrally disposed of magnetic bowl.3rd magnet 71 is fixed on the 3rd In magnetic bowl 72, annular gap is formed with the 3rd magnetic bowl 72, annular gap is connected with the acoustic aperture E that goes out of 72 bottom of the 3rd magnetic bowl.4th Magnet 81 is fixed in the 4th magnetic bowl 82, and annular gap, annular gap and 82 bottom of the 4th magnetic bowl are formed with the 4th magnetic bowl 82 Go out acoustic aperture E connections.3rd magnet 71 and the 4th magnet 81 magnetize along magnet longitudinal direction Zone Full, 71 He of the 3rd magnet The magnetizing direction of 4th magnet 81 is opposite.3rd magnet 71 and the 3rd magnetic bowl 72,82 common shape of the 4th magnet 81 and the 4th magnetic bowl Into a magnetostatic field.Vibrational system B is arranged in magnetostatic field, the sound that vibrational system B vibrations produce by annular gap and Go out acoustic aperture E outflows.3rd magnetic bowl 72 is identical with the structure of the 4th magnetic bowl 82, pore size, number therefore loudspeaker front and back is spoken Measure identical.Preferably, pore size or quantity can be spoken to optimize the performance of loudspeaker by varying one of magnetic bowl.

Vibrational system B is arranged in the magnetostatic field that the 3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 are formed.Vibrational system B bags 3 and first voice coil loudspeaker voice coil 4 of vibrating diaphragm is included, the first voice coil loudspeaker voice coil 4 is bonded and fixed on vibrating diaphragm 3.3 edge side of vibrating diaphragm is Nian Jie with the first frame C solid Fixed, opposite side is adhesively fixed with the second frame D.The width of first voice coil loudspeaker voice coil, 4 coiling is compared with the height of 4 coiling of the first voice coil loudspeaker voice coil Width, cross sectional shape are flat.The optional scope of line footpath of first voice coil loudspeaker voice coil 4 is 0.02mm-0.1mm.First voice coil loudspeaker voice coil 4 is placed in magnetostatic field In, stress drives 3 vibration sounding of vibrating diaphragm after the first voice coil loudspeaker voice coil 4 connects electric signal.Vibrating diaphragm 3 includes edge ring and mid-plane area Domain.To improve the rigidity of vibrating diaphragm 3 intermediate region, lift high frequency frequency response performance, can plane domain paste set stiffening plate or 3 intermediate region of vibrating diaphragm is arranged to arch crown by person, and vault can be integrally formed with ring, and dome shape is firm compared to flat shape Property increase.If the rigidity still deficiency of vault can also paste one layer of stiffening plate increase vault rigidity on vault, high frequency is lifted Frequency response performance.The optional scope of 3 thickness of vibrating diaphragm is 10um-100um.Dilval, stainless steel, poly- naphthalene can be selected in the material of vibrating diaphragm 3 The materials such as naphthalate fiber (PEN), polyether ketone fiber (PEEK), the glass-fiber reinforced epoxy resin of FR4.

In the present embodiment, the shape of loudspeaker can be the shapes such as circular, square or track type.3rd magnetic circuit module 7, Four magnetic circuit modules 8 and the shape of vibrating diaphragm 3 and the shape of loudspeaker are identical, can also be arranged to round according to the different shape of loudspeaker The shapes such as shape, square or track type.First voice coil loudspeaker voice coil 4 is arranged to corresponding circular ring shape, side's annular or runway annular etc..Preferably, Loudspeaker is provided in round, and the 3rd magnetic circuit module 7, the 4th magnetic circuit module 8 and vibrating diaphragm 3 are shaped to circle, the first voice coil loudspeaker voice coil 4 It is arranged to circular ring shape.

The loudspeaker of the present embodiment by emulation, can be calculated the first voice coil loudspeaker voice coil 4 nearby the distribution results of magnetic induction line and The distribution results of magnetic induction intensity near first voice coil loudspeaker voice coil 4.As shown in Figure 13 and Figure 14, Figure 13 is magnetic near the voice coil loudspeaker voice coil of the present embodiment Feel the distribution schematic diagram of line, Figure 14 is the distribution schematic diagram of magnetic induction intensity near the voice coil loudspeaker voice coil of the present embodiment.First sound in Figure 13 Enclose directly over 4 regions and the first voice coil loudspeaker voice coil 4 and underface region is the 3rd magnet 71 and the 3rd magnetic bowl 72,81 and of the 4th magnet Near the boundary of 4th magnetic bowl 82.The magnetic induction line direction in this region is horizontal, compared with the loudspeaker of patent CN203775399U, magnetic More concentrate field.The vertical paper in first voice coil loudspeaker voice coil, 4 internal current direction, according to left hand rule, the first voice coil loudspeaker voice coil 4 is powered meeting in magnetostatic field It is subject to the driving force of direction up or down.First voice coil loudspeaker voice coil, 4 stress up-down vibration, drives 3 vibration sounding of vibrating diaphragm.Black in Figure 14 The higher region of Regional Representative's magnetic induction intensity, gray area represent the relatively low region of magnetic induction intensity, and color by becoming deeply It is shallow, represent magnetic induction intensity from large to small.It is seen from figure 14 that the magnetic induction intensity of 4 vertical lower regions of the first voice coil loudspeaker voice coil compared with By force, and most strong close to the region of magnetic circuit module, the intermediate region away from magnetic circuit module is weaker.Can be according to point of magnetic induction intensity Cloth region determines the size of the first voice coil loudspeaker voice coil 4.When the first voice coil loudspeaker voice coil 4, which is powered, to move up and down, the magnetic induction intensity inside the first voice coil loudspeaker voice coil 4 Change, amplitude is bigger, and magnetic induction intensity is bigger.

Figure 15 is that the magnetic induction intensity of the present embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers become with voice coil position The curve synoptic diagram of change.The curve that C1 changes for the magnetic induction intensity of conventional loudspeakers with voice coil position in Figure 15, C3 is this reality Apply the curve that the magnetic induction intensity of a loudspeaker changes with voice coil position.Transverse axis represents voice coil position in Figure 15, and 0 represents rest position Put, vibrate relevant position upwards on the occasion of representing voice coil loudspeaker voice coil, negative value represents voice coil loudspeaker voice coil and vibrates relevant position downwards；It is strong that the longitudinal axis represents magnetic induction Angle value.From two curves of C1, C3 relatively：The first voice coil loudspeaker voice coil of the present embodiment 4 is minimum in the magnetic induction intensity of resting position 0, The bigger magnetic induction intensity of amplitude is bigger up or down first voice coil loudspeaker voice coil 4, and conventional loudspeakers are on the contrary, voice coil loudspeaker voice coil resting position 0 Magnetic induction intensity is maximum, and the bigger magnetic induction intensity of voice coil loudspeaker voice coil amplitude is smaller.The magnetic induction intensity of the first voice coil loudspeaker voice coil of the present embodiment 4 is comprehensively high In the magnetic induction intensity of conventional loudspeakers voice coil loudspeaker voice coil, loudspeaker sensitivity lifting is eventually exhibited as.In addition, the first voice coil loudspeaker voice coil of the present embodiment 4 magnetic induction intensity with the displacement increase of the first voice coil loudspeaker voice coil 4 and increased characteristic advantageously reduces the nonlinear characteristic of loudspeaker, Suppress the total harmonic distortion of loudspeaker.

Figure 16 is the magnetic strength of embodiment one, the magnetic induction intensity of embodiment two and embodiment three loudspeakers and conventional loudspeakers The curve synoptic diagram for answering intensity to change with voice coil position.As shown in figure 16, in figure C1 be conventional loudspeakers magnetic induction intensity with The curve of voice coil position change, C2 are the curve that the magnetic induction intensity of one loudspeaker of embodiment changes with voice coil position, and C3 is real Apply the curve that the magnetic induction intensity of a three loudspeakers changes with voice coil position, C4 be two loudspeaker of embodiment magnetic induction intensity with The curve of voice coil position change.Transverse axis represents voice coil position in Figure 16, and 0 represents resting position, is vibrated upwards on the occasion of representing voice coil loudspeaker voice coil Relevant position, negative value represent voice coil loudspeaker voice coil and vibrate relevant position downwards；The longitudinal axis represents magnetic induction intensity value.By C1, C2, C3 and C4 tetra- Curve is relatively understood：First voice coil loudspeaker voice coil 4 is in same position, magnetic induction intensity C2>C3>C4>C1, magnetic induction intensity increase will make The sensitivity increase of loudspeaker, by relatively understanding that sensitivity of the embodiment one to embodiment three is sensitive compared to conventional loudspeakers Degree has been lifted, and wherein the loudspeaker of embodiment one is optimal case.

Example IV：

Figure 17 and Figure 18 is the structure diagram of the loudspeaker of the present embodiment.As shown in the figure, loudspeaker includes magnetic circuit system A, vibrational system B, the first frame C, the second frame D and the 3rd frame F.Wherein, the first frame C and the second frame D are oppositely arranged Form accommodating cavity.Magnetic circuit system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in. What the first frame C, the second frame D and magnetic circuit system A form multiple circular magnetic circuit system A central shaft after interfixing was set goes out Acoustic aperture E.Vibrational system B is in magnetic circuit system A through the sound that vibration produces by going out acoustic aperture E outflows.

First frame C and the second frame D structures are identical with the frame structure in embodiment one, primarily form the outer of loudspeaker Shell, for fixing other structures.3rd frame F includes positive electrode F1 and negative electrode F2.3rd frame F is arranged at magnetic circuit system A The second through hole 92 in, be electrically connected by positive electrode F1 and negative electrode F2 and vibrational system B so that the drive of vibrational system B Power is superimposed.

Magnetic circuit system A includes the first multipole magnet 1 and the second multipole magnet 2.First multipole magnet 1 and the second multipole magnet 2 be annular magnet.First multipole magnet 1 is fixed on by bonding way on the madial wall of the first frame C, with the first frame C Madial wall formed it is multiple go out acoustic aperture E.Second multipole magnet 2 is fixed on by bonding way on the madial wall of the second frame D, with The madial wall of second frame D formed it is multiple go out acoustic aperture E.First multipole magnet 1 and the second multipole magnet 2 are oppositely arranged, both it Between form magnetostatic field.First multipole magnet 1 and the second multipole magnet 2 magnetize to be formed by one piece of magnet subregion.First multipole Magnet 1 includes the first multipole magnet interior zone 11 and the first multipole magnet perimeter 12.First multipole magnet interior zone 11 are centrally formed first through hole 91, can be used as out acoustic aperture, speak outflow suitable for vibrational system B vibrations.Second multipole magnet 2 Including the second multipole magnet interior zone 21 and the second multipole magnet perimeter 22.In second multipole magnet interior zone 21 The second through hole 92 is formed centrally, suitable for fixing the 3rd frame F.Wherein, the first multipole magnet interior zone 11 and the first multipole magnet 12 magnetizing direction of perimeter is opposite；22 magnetizing direction of second multipole magnet interior zone 21 and the second multipole magnet perimeter Conversely；First multipole magnet interior zone 11 and 21 magnetizing direction of the second multipole magnet interior zone are opposite.

Vibrational system B is arranged in the magnetostatic field that the first multipole magnet 1 and the second multipole magnet 2 are formed.Vibrational system B bags Vibrating diaphragm 3, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are included, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are bonded and fixed to vibrating diaphragm in coaxial fashion On 3, both form loop configuration.3 edge side of vibrating diaphragm is adhesively fixed with the first frame C, and opposite side is Nian Jie with the second frame D solid It is fixed.The width of voice coil loudspeaker voice coil coiling is wider compared with the height of voice coil loudspeaker voice coil coiling, and cross sectional shape is flat.The optional scope of line footpath of voice coil loudspeaker voice coil For 0.02mm-0.1mm.First voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are placed in magnetostatic field, by lead be respectively welded in positive electrode F1 with To realize electric signal transmission on negative electrode F2.Stress drives 3 vibration sounding of vibrating diaphragm after first voice coil loudspeaker voice coil 4 connects electric signal.Second 10 energization stress of voice coil loudspeaker voice coil, plays the role of sensitivity superposition, noise reduction, frequency dividing acoustical signal output etc..Vibrating diaphragm 3 includes edge ring with Between plane domain.To improve the rigidity of 3 intermediate region of vibrating diaphragm, high frequency frequency response performance is lifted, can paste and set in plane domain 3 intermediate region of vibrating diaphragm is arranged to arch crown by stiffening plate, and vault can be integrally formed with ring, and dome shape is compared to flat Face shape rigidity increase.If the rigidity still deficiency of vault can also paste one layer of stiffening plate increase vault rigidity on vault, Lift high frequency frequency response performance.The optional scope of 3 thickness of vibrating diaphragm is 10um-100um.Dilval, stainless can be selected in the material of vibrating diaphragm 3 The materials such as steel, polyethylene naphthalate fiber (PEN), polyether ketone fiber (PEEK), the glass-fiber reinforced epoxy resin of FR4 Material.

In the present embodiment, the shape of loudspeaker can be the shapes such as circular, square or track type.The shape of vibrating diaphragm 3 is with raising The shape of sound device is identical, can also be provided in round according to the different shape of loudspeaker, the shape such as square or track type.More than first Pole magnet 1, the second multipole magnet 2, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 could be provided as corresponding circular ring shape, side's annular or run Road annular etc..Preferably, loudspeaker is provided in round, and vibrating diaphragm 3 is shaped to circle, the first multipole magnet 1, the second multipole Magnet 2, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are circular ring shape.

The first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 magnetic induction line nearby can be calculated by emulation in the loudspeaker of the present embodiment Distribution results and the neighbouring magnetic induction intensity of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 distribution results.As illustrated in figures 19 and 20, scheme 19 be the distribution schematic diagram of magnetic induction line near the voice coil loudspeaker voice coil of the present embodiment, and Figure 20 is magnetic induction intensity near the voice coil loudspeaker voice coil of the present embodiment Distribution schematic diagram.4 region of the first voice coil loudspeaker voice coil and the surface of the first voice coil loudspeaker voice coil 4 and underface region are the first multipole magnets in Figure 19 1 and second multipole magnet 2 interior zone 11,21 and perimeter 12,22 boundary near.The magnetic direction water in this region Flat, compared with the loudspeaker of patent CN203775399U, magnetic field is more concentrated.Second voice coil loudspeaker voice coil, 10 region is first through hole 91 It is horizontal with the adjacent edges of the second through hole 92, this regional magnetic field direction.The internal current direction of first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 Vertical paper, according to left hand rule, in magnetostatic field, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10, which are powered, can be subject to direction up or down Driving force.During to ensure to be powered, the first voice coil loudspeaker voice coil 4 is identical with the driving force direction of the second voice coil loudspeaker voice coil 10, can be to the first voice coil loudspeaker voice coil 4 and the The canoe of two voice coil loudspeaker voice coils 10 is configured.Wherein, when the winding direction of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 is opposite, first The lead-in wire terminal of 4 and second voice coil loudspeaker voice coil 10 of voice coil loudspeaker voice coil is welded on same electrode, and leading-out terminal is welded on another electrode；Alternatively, when first When voice coil loudspeaker voice coil 4 is identical with the winding direction of the second voice coil loudspeaker voice coil 10, the leading-out terminal of the lead-in wire terminal of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 is welded on On same electrode, the lead-in wire terminal of the leading-out terminal of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 is welded on another electrode.First voice coil loudspeaker voice coil, 4 He Second voice coil loudspeaker voice coil, 10 stress up-down vibration, drives 3 vibration sounding of vibrating diaphragm, and compared to one voice coil loudspeaker voice coil of driving force that two voice coil loudspeaker voice coils produce produces Driving force bigger, the final sensitivity for lifting loudspeaker.It is above the parallel way of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10, The first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 can be connected by series system, notice that current direction is matched somebody with somebody with magnetic direction in connection Close, ensure the driving force superposition that two voice coil loudspeaker voice coils produce.Preferably, in the present embodiment, the quality of the second voice coil loudspeaker voice coil 10 is lighter, and second The driving force that voice coil loudspeaker voice coil 10 produces is bigger, and the sensitivity of loudspeaker is higher.Black region represents magnetic induction intensity maximum in Figure 20 Region, gray area represent the relatively small region of magnetic induction intensity, and color from depth to shallow, represents magnetic induction intensity by becoming greatly It is small.The size of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 can be determined according to the distributed areas of magnetic induction intensity.When two voice coil loudspeaker voice coils are powered During up and down motion, the magnetic induction intensity inside voice coil loudspeaker voice coil changes, and amplitude is bigger, and magnetic induction intensity is bigger.

Figure 21 is that the magnetic induction intensity of the present embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers become with voice coil position The curve synoptic diagram of change.The curve that C1 changes for the magnetic induction intensity of conventional loudspeakers with voice coil position in Figure 21, C5 is this reality The curve that the magnetic induction intensity of a loudspeaker changes with the first voice coil position is applied, C6 is the magnetic induction intensity of the present embodiment loudspeaker The curve changed with the second voice coil position.Transverse axis represents voice coil position in Figure 21, and 0 represents resting position, on the occasion of represent voice coil loudspeaker voice coil to Upper vibration relevant position, negative value represent voice coil loudspeaker voice coil and vibrate relevant position downwards；The longitudinal axis represents magnetic induction intensity value.Being compared by curve can Know：The magnetic induction intensity of the first voice coil loudspeaker voice coil of the present embodiment 4 is higher than the magnetic induction intensity of conventional loudspeakers voice coil loudspeaker voice coil, the magnetic of the second voice coil loudspeaker voice coil 10 Induction plays the role of supplement for the first voice coil loudspeaker voice coil 4, therefore the magnetic induction intensity of loudspeaker is higher than tradition in the present embodiment The magnetic induction intensity of loudspeaker.The bigger magnetic induction intensity of amplitude is bigger up or down for first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10, and passes Loudspeaker unite on the contrary, the magnetic induction intensity of voice coil loudspeaker voice coil resting position 0 is maximum, the bigger magnetic induction intensity of voice coil loudspeaker voice coil amplitude is smaller.This reality The magnetic induction intensity for applying a voice coil loudspeaker voice coil is higher than the magnetic induction intensity of conventional loudspeakers voice coil loudspeaker voice coil comprehensively, is eventually exhibited as loudspeaker sensitivity Lifting.In addition, the magnetic induction intensity of the present embodiment voice coil loudspeaker voice coil with voice coil loudspeaker voice coil displacement increase and increased characteristic is advantageously reduced and raised The nonlinear characteristic of sound device, suppresses the total harmonic distortion of loudspeaker.

Embodiment five：

Figure 22 and Figure 23 is the structure diagram of the loudspeaker of the present embodiment.As shown in the figure, loudspeaker includes magnetic circuit system A, vibrational system B, the first frame C, the second frame D and the 3rd frame F.Wherein, the first frame C and the second frame D are oppositely arranged Form accommodating cavity.Magnetic circuit system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in. What the first frame C, the second frame D and magnetic circuit system A form multiple circular magnetic circuit system A central shaft after interfixing was set goes out Acoustic aperture E.Vibrational system B is in magnetic circuit system A through the sound that vibration produces by going out acoustic aperture E outflows.

First frame C and the second frame D structures are identical, the shell of loudspeaker are primarily formed, for fixing other structures.The The through hole that cross section is in turn connected to form for multiple circular arcs, the arc of through hole are both provided with the inside of one frame C and the second frame D Madial wall is formed after being fixedly connected with magnetic circuit system A multiple independent goes out acoustic aperture E.It is multiple go out acoustic aperture E in magnetic circuit system A Mandrel is set.Vibrational system B sounding is spread out of along acoustic aperture E is gone out.In the present embodiment, the first frame C and the second frame D structure phases Together, therefore loudspeaker front and back is spoken, pore size, quantity are identical.Preferably, can be by varying the first frame C or the second basin Frame D's speaks pore size or quantity to optimize the performance of loudspeaker.3rd frame F includes positive electrode F1 and negative electrode F2.3rd Frame F is arranged in the second through hole 92 of magnetic circuit system A, is electrically connected by positive electrode F1 and negative electrode F2 and vibrational system B Connect the driving force superposition so that vibrational system B.

Magnetic circuit system A includes the first magnetic circuit module 5 and the second magnetic circuit module 6.First magnetic circuit module 5 and the second magnetic circuit module 6 center is respectively arranged with 91 and second through hole 92 of first through hole.First through hole 91, can be used as out acoustic aperture, suitable for shaking Dynamic system B vibrates outflow of speaking.Second through hole 92, suitable for fixing the 3rd frame F, is electrically connected easy to vibrational system B with electrode Connect.First magnetic circuit module 5 is fixed on by bonding way on the madial wall of the first frame C, is formed with the madial wall of the first frame C It is multiple go out acoustic aperture E.Second magnetic circuit module 6 is fixed on by bonding way on the madial wall of the second frame D, with the second frame D's Madial wall formed it is multiple go out acoustic aperture E.First magnetic circuit module 5 and the second magnetic circuit module 6 are oppositely arranged, and are formed between the two magnetostatic .First magnetic circuit module 5 includes the first magnet 51 and the first magnetic bowl 52.Second magnetic circuit module 6 includes the second magnet 61 and second Magnetic bowl 62.First magnet 51 and the second magnet 61 are bonded in the first magnetic bowl 52 and the second magnetic bowl 62 respectively, outside diameter of magnet etc. Magnet is fitted closely with magnetic bowl after the internal diameter of magnetic bowl, bonding.First magnet 51 and the second magnet 61 are complete along magnet longitudinal direction Portion magnetizes in region, and the magnetizing direction of the first magnet 51 and the second magnet 61 is opposite.First magnet 51 and the first magnetic bowl 52, Two magnet 61 and the second magnetic bowl 62 are collectively forming a magnetostatic field.

Vibrational system B is arranged in the magnetostatic field that the first magnetic circuit module 5 and the second magnetic circuit module 6 are formed.Vibrational system B bags Vibrating diaphragm 3, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are included, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are bonded and fixed to vibrating diaphragm in coaxial fashion On 3, both form loop configuration.3 edge side of vibrating diaphragm is adhesively fixed with the first frame C, and opposite side is Nian Jie with the second frame D solid It is fixed.The width of voice coil loudspeaker voice coil coiling is wider compared with the height of voice coil loudspeaker voice coil coiling, and cross sectional shape is flat.The optional scope of line footpath of voice coil loudspeaker voice coil For 0.02mm-0.1mm.First voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are placed in magnetostatic field, by lead be respectively welded in positive electrode F1 with To realize electric signal transmission on negative electrode F2.Stress drives 3 vibration sounding of vibrating diaphragm after first voice coil loudspeaker voice coil 4 connects electric signal.Second 10 energization stress of voice coil loudspeaker voice coil, plays the role of sensitivity superposition, noise reduction, frequency dividing acoustical signal output etc..Vibrating diaphragm 3 includes edge ring with Between plane domain.To improve the rigidity of 3 intermediate region of vibrating diaphragm, high frequency frequency response performance is lifted, can paste and set in plane domain 3 intermediate region of vibrating diaphragm is arranged to arch crown by stiffening plate, and vault can be integrally formed with ring, and dome shape is compared to flat Face shape rigidity increase.If the rigidity still deficiency of vault can also paste one layer of stiffening plate increase vault rigidity on vault, Lift high frequency frequency response performance.The optional scope of 3 thickness of vibrating diaphragm is 10um-100um.Dilval, stainless can be selected in the material of vibrating diaphragm 3 The materials such as steel, polyethylene naphthalate fiber (PEN), polyether ketone fiber (PEEK), the glass-fiber reinforced epoxy resin of FR4 Material.

In the present embodiment, the shape of loudspeaker can be the shapes such as circular, square or track type.The shape of vibrating diaphragm 3 is with raising The shape of sound device is identical, can also be provided in round according to the different shape of loudspeaker, the shape such as square or track type.First magnetic Road module 5, the second magnetic circuit module 6, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 could be provided as corresponding circular ring shape, side's annular or run Road annular etc..Preferably, loudspeaker is provided in round, and vibrating diaphragm 3 is shaped to circle, the first magnetic circuit module 5, the second magnetic circuit Module 6, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are circular ring shape.

The first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 magnetic induction line nearby can be calculated by emulation in the loudspeaker of the present embodiment Distribution results and the neighbouring magnetic induction intensity of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 distribution results.As shown in figures 24 and 25, scheme 24 be the distribution schematic diagram of magnetic induction line near the voice coil loudspeaker voice coil of the present embodiment, and Figure 25 is magnetic induction intensity near the voice coil loudspeaker voice coil of the present embodiment Distribution schematic diagram.4 region of the first voice coil loudspeaker voice coil and the surface of the first voice coil loudspeaker voice coil 4 and underface region are 51 Hes of the first magnet in Figure 24 Near the boundary of first magnetic bowl 52, the second magnet 61 and the second magnetic bowl 62.The magnetic direction in this region is horizontal, with patent The loudspeaker of CN203775399U is compared, and magnetic field is more concentrated.Second voice coil loudspeaker voice coil, 10 region is logical for first through hole 91 and second The adjacent edges in hole 92, this regional magnetic field direction are horizontal.The vertical paper in internal current direction of first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 Face, according to left hand rule, in magnetostatic field, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10, which are powered, can be subject to the driving of direction up or down Power.During to ensure to be powered, the first voice coil loudspeaker voice coil 4 is identical with the driving force direction of the second voice coil loudspeaker voice coil 10, can be to the first voice coil loudspeaker voice coil 4 and the second sound The canoe of circle 10 is configured.In first voice coil loudspeaker voice coil 4 of the present embodiment and the canoe and example IV of the second voice coil loudspeaker voice coil 10 Voice coil loudspeaker voice coil canoe it is identical, can ensure the driving force superposition that two voice coil loudspeaker voice coils produce.Black region represents magnetic strength in Figure 25 The region of maximum intensity is answered, gray area represents the relatively small region of magnetic induction intensity, and color from depth to shallow, represents magnetic induction Intensity is from large to small.The size of the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 can be determined according to the distributed areas of magnetic induction intensity.When two When a voice coil loudspeaker voice coil energization moves up and down, the magnetic induction intensity inside voice coil loudspeaker voice coil changes, and amplitude is bigger, and magnetic induction intensity is bigger.

Figure 26 is that the magnetic induction intensity of the present embodiment loudspeaker and the magnetic induction intensity of conventional loudspeakers become with voice coil position The curve synoptic diagram of change.The curve that C1 changes for the magnetic induction intensity of conventional loudspeakers with voice coil position in Figure 26, C7 is this reality The curve that the magnetic induction intensity of a loudspeaker changes with the first voice coil position is applied, C8 is the magnetic induction intensity of the present embodiment loudspeaker The curve changed with the second voice coil position.Transverse axis represents voice coil position in Figure 26, and 0 represents resting position, on the occasion of represent voice coil loudspeaker voice coil to Upper vibration relevant position, negative value represent voice coil loudspeaker voice coil and vibrate relevant position downwards；The longitudinal axis represents magnetic induction intensity value.Being compared by curve can Know：The magnetic induction intensity of the first voice coil loudspeaker voice coil of the present embodiment 4 is higher than the magnetic induction intensity of conventional loudspeakers voice coil loudspeaker voice coil, the magnetic of the second voice coil loudspeaker voice coil 10 Induction plays the role of supplement for the first voice coil loudspeaker voice coil 4, therefore the magnetic induction intensity of loudspeaker is higher than tradition in the present embodiment The magnetic induction intensity of loudspeaker.The bigger magnetic induction intensity of amplitude is bigger up or down for first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10, and passes Loudspeaker unite on the contrary, the magnetic induction intensity of voice coil loudspeaker voice coil resting position 0 is maximum, the bigger magnetic induction intensity of voice coil loudspeaker voice coil amplitude is smaller.This reality The magnetic induction intensity for applying a voice coil loudspeaker voice coil is higher than the magnetic induction intensity of conventional loudspeakers voice coil loudspeaker voice coil comprehensively, is eventually exhibited as loudspeaker sensitivity Lifting.In addition, the magnetic induction intensity of the present embodiment voice coil loudspeaker voice coil with voice coil loudspeaker voice coil displacement increase and increased characteristic is advantageously reduced and raised The nonlinear characteristic of sound device, suppresses the total harmonic distortion of loudspeaker.

Embodiment six：

Figure 27 is the structure diagram of the loudspeaker of the present embodiment.As shown in figure 27, loudspeaker includes magnetic circuit system A, shakes Dynamic system B, the first frame C, the second frame D and the 3rd frame F.Wherein, the first frame C and the second frame D are oppositely arranged to be formed Accommodating cavity.Magnetic circuit system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in.Magnetic circuit The central shaft setting of multiple circular magnetic circuit system A is provided with system A goes out acoustic aperture E.Vibrational system B is passed through in magnetic circuit system A The sound produced is vibrated by going out acoustic aperture E outflows.

First frame C and the second frame D structures are identical, the shell of loudspeaker are primarily formed, for fixing other structures.The Cylindrical hole is disposed as on the inside of one frame C and the second frame D.3rd frame F includes positive electrode F1 and negative electrode F2.The Three frame F are arranged in the second through hole 92 of magnetic circuit system A, and electricity is carried out by positive electrode F1 and negative electrode F2 and vibrational system B Connection is so that the driving force superposition of vibrational system B.

Magnetic circuit system A includes the 3rd magnetic circuit module 7 and the 4th magnetic circuit module 8.3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 center is respectively arranged with 91 and second through hole 92 of first through hole.First through hole 91, can be used as out acoustic aperture, suitable for shaking Dynamic system B vibrates outflow of speaking.Second through hole 92, suitable for fixing the 3rd frame F, is electrically connected easy to vibrational system B with electrode Connect.3rd magnetic circuit module 7 and the appearance and size of the 4th magnetic circuit module 8 and the cylindrical hole size fit of frame.3rd magnetic circuit Module 7 is fixed on by bonding way in the cylindrical hole of the first frame C.4th magnetic circuit module 8 is fixed on by bonding way In the cylindrical hole of second frame D.3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 are oppositely arranged, and are formed between the two magnetostatic .3rd magnetic circuit module 7 includes the 3rd magnet 71 and the 3rd magnetic bowl 72.4th magnetic circuit module 8 includes the 4th magnet 81 and the 4th Magnetic bowl 82.The bottom of 3rd magnetic bowl 72 and the 4th magnetic bowl 82 is both provided with multiple cylinders and goes out acoustic aperture E.It is multiple go out acoustic aperture E surround Magnetic bowl it is centrally disposed.3rd magnet 71 is fixed in the 3rd magnetic bowl 72, and annular gap, annular gap are formed with the 3rd magnetic bowl 72 Connected with the acoustic aperture E that goes out of 72 bottom of the 3rd magnetic bowl.4th magnet 81 is fixed in the 4th magnetic bowl 82, and ring is formed with the 4th magnetic bowl 82 Shape gap, annular gap are connected with the acoustic aperture E that goes out of 82 bottom of the 4th magnetic bowl.3rd magnet 71 and the 4th magnet 81 are longitudinal along magnet Direction Zone Full magnetizes, and the magnetizing direction of the 3rd magnet 71 and the 4th magnet 81 is opposite.3rd magnet 71 and the 3rd magnetic The 72, the 4th magnet 81 of bowl and the 4th magnetic bowl 82 are collectively forming a magnetostatic field.Vibrational system B is arranged in magnetostatic field, vibration system The sound that system B vibrations produce is by annular gap and goes out acoustic aperture E outflows.The structure phase of 3rd magnetic bowl 72 and the 4th magnetic bowl 82 Together, therefore loudspeaker front and back is spoken, pore size, quantity are identical.Preferably, can going out by varying one of magnetic bowl Acoustic aperture size or quantity are to optimize the performance of loudspeaker.

Vibrational system B is arranged in the magnetostatic field that the 3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 are formed.Vibrational system B bags Vibrating diaphragm 3, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are included, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are bonded and fixed to vibrating diaphragm in coaxial fashion On 3, both form loop configuration.3 edge side of vibrating diaphragm is adhesively fixed with the first frame C, and opposite side is Nian Jie with the second frame D solid It is fixed.The width of voice coil loudspeaker voice coil coiling is wider compared with the height of voice coil loudspeaker voice coil coiling, and cross sectional shape is flat.The optional scope of line footpath of voice coil loudspeaker voice coil For 0.02mm-0.1mm.First voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are placed in magnetostatic field, by lead be respectively welded in positive electrode F1 with To realize electric signal transmission on negative electrode F2.By adjusting voice coil loudspeaker voice coil winding direction or go out lead-in wire terminal welding respective electrode side Formula, ensures that voice coil loudspeaker voice coil produces driving force in the same direction.Stress drives 3 vibration sounding of vibrating diaphragm after first voice coil loudspeaker voice coil 4 connects electric signal.Second sound 10 energization stress are enclosed, play the role of sensitivity superposition, noise reduction, frequency dividing acoustical signal output etc..Vibrating diaphragm 3 includes edge ring and centre Plane domain.To improve the rigidity of 3 intermediate region of vibrating diaphragm, high frequency frequency response performance is lifted, can paste to set in plane domain and mend 3 intermediate region of vibrating diaphragm is arranged to arch crown by strong plate, and vault can be integrally formed with ring, and dome shape compares plane Shape rigidity increase.If the rigidity still deficiency of vault can also paste one layer of stiffening plate increase vault rigidity on vault, carry Rise high frequency frequency response performance.The optional scope of 3 thickness of vibrating diaphragm is 10um-100um.Dilval, stainless can be selected in the material of vibrating diaphragm 3 The materials such as steel, polyethylene naphthalate fiber (PEN), polyether ketone fiber (PEEK), the glass-fiber reinforced epoxy resin of FR4 Material.

In the present embodiment, the shape of loudspeaker can be the shapes such as circular, square or track type.The shape of vibrating diaphragm 3 is with raising The shape of sound device is identical, can also be provided in round according to the different shape of loudspeaker, the shape such as square or track type.3rd magnetic Road module 7, the 4th magnetic circuit module 8, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 could be provided as corresponding circular ring shape, side's annular or run Road annular etc..Preferably, loudspeaker is provided in round, and vibrating diaphragm 3 is shaped to circle, the 3rd magnetic circuit module 7, the 4th magnetic circuit Module 8, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are circular ring shape.Voice coil loudspeaker voice coil can be calculated by emulation in the loudspeaker of the present embodiment The distribution results of magnetic induction intensity near the distribution results and voice coil loudspeaker voice coil of neighbouring magnetic induction line.The magnetic induction intensity of the present embodiment voice coil loudspeaker voice coil is complete Face is higher than the magnetic induction intensity of conventional loudspeakers voice coil loudspeaker voice coil, is eventually exhibited as loudspeaker sensitivity lifting.In addition, the present embodiment voice coil loudspeaker voice coil Magnetic induction intensity with the displacement increase of voice coil loudspeaker voice coil and increased characteristic advantageously reduces the nonlinear characteristic of loudspeaker, suppress to raise The total harmonic distortion of sound device.

Embodiment seven：

Figure 28 is the structure diagram of the loudspeaker of the present embodiment.As shown in figure 28, loudspeaker includes magnetic circuit system A, shakes Dynamic system B, the first frame C and the second frame D.Wherein, the first frame C and the second frame D are oppositely arranged to form accommodating cavity.Magnetic Road system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in.First frame C, the second basin What frame D and magnetic circuit system A forms multiple circular magnetic circuit system A central shaft after interfixing was set goes out acoustic aperture E1.Vibrational system B Through the sound that vibration produces by going out acoustic aperture E1 outflows in magnetic circuit system A.

First frame C and the second frame D structures are identical, the shell of loudspeaker are primarily formed, for fixing other structures.The The through hole that cross section is in turn connected to form for multiple circular arcs, the arc of through hole are both provided with the inside of one frame C and the second frame D Madial wall is formed after being fixedly connected with magnetic circuit system A multiple independent goes out acoustic aperture E1.It is multiple go out acoustic aperture E1 around magnetic circuit system A's Central shaft is set.Vibrational system B sounding is spread out of along acoustic aperture E1 is gone out.In the present embodiment, the first frame C and the second frame D structures Identical, therefore loudspeaker front and back is spoken, pore size, quantity are identical.Preferably, can be by varying one of frame Pore size of speaking or quantity are to optimize the performance of loudspeaker.

Magnetic circuit system A includes the 3rd magnetic circuit module 7 and the 4th magnetic circuit module 8.3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 appearance and size and the cylindrical hole size fit of frame.3rd magnetic circuit module 7 is fixed on the first frame by bonding way In the cylindrical hole of C.4th magnetic circuit module 8 is fixed on by bonding way in the cylindrical hole of the second frame D.3rd magnetic circuit mould 7 and the 4th magnetic circuit module 8 of block is oppositely arranged, and forms magnetostatic field between the two.3rd magnetic circuit module 7 includes the 3rd magnet 71 and the Three magnetic bowls 72.4th magnetic circuit module 8 includes the 4th magnet 81 and the 4th magnetic bowl 82.The bottom of 3rd magnetic bowl 72 and the 4th magnetic bowl 82 It is both provided with multiple cylinders and goes out acoustic aperture E2.It is multiple go out acoustic aperture E2 around the centrally disposed of magnetic bowl.3rd magnet 71 is fixed on In three magnetic bowls 72, annular gap is formed with the 3rd magnetic bowl 72, annular gap is connected with the acoustic aperture E2 that goes out of 72 bottom of the 3rd magnetic bowl.The Four magnet 81 are fixed in the 4th magnetic bowl 82, and annular gap, annular gap and 82 bottom of the 4th magnetic bowl are formed with the 4th magnetic bowl 82 Go out acoustic aperture E2 connection.3rd magnet 71 and the 4th magnet 81 magnetize along magnet longitudinal direction Zone Full, the 3rd magnet 71 and the 4th magnet 81 magnetizing direction it is opposite.3rd magnet 71 and the 3rd magnetic bowl 72, the 4th magnet 81 and the 4th magnetic bowl 82 are common With one magnetostatic field of formation.Vibrational system B is arranged in magnetostatic field, and the sound that vibrational system B vibrations produce is by going out acoustic aperture E1 Spread out of with E2.3rd magnetic bowl 72 is identical with the structure of the 4th magnetic bowl 82, pore size, quantity phase therefore loudspeaker front and back is spoken Together.Preferably, pore size or quantity can be spoken to optimize the performance of loudspeaker by varying one of magnetic bowl.

The loudspeaker of the present embodiment is by emulation, and voice coil loudspeaker voice coil can be calculated, and nearby the distribution results of magnetic induction line and voice coil loudspeaker voice coil are attached The distribution results of nearly magnetic induction intensity.The magnetic induction intensity of the present embodiment voice coil loudspeaker voice coil is higher than the magnetic induction of conventional loudspeakers voice coil loudspeaker voice coil comprehensively Intensity, is eventually exhibited as loudspeaker sensitivity lifting.In addition, the magnetic induction intensity of the present embodiment voice coil loudspeaker voice coil increases with the displacement of voice coil loudspeaker voice coil Add and increased characteristic advantageously reduces the nonlinear characteristic of loudspeaker, suppress the total harmonic distortion of loudspeaker.

Embodiment eight：

Figure 29 is the structure diagram of the loudspeaker of the present embodiment.As shown in figure 29, loudspeaker includes magnetic circuit system A, shakes Dynamic system B, the first frame C, the second frame D and the 3rd frame F.Wherein, the first frame C and the second frame D are oppositely arranged to be formed Accommodating cavity.Magnetic circuit system A and vibrational system B be fixed on the first frame C and the second frame D-shaped into accommodating cavity in.First What frame C, the second frame D and magnetic circuit system A form multiple circular magnetic circuit system A central shaft after interfixing was set goes out acoustic aperture E1.Vibrational system B is in magnetic circuit system A through the sound that vibration produces by going out acoustic aperture E1 outflows.

First frame C and the second frame D structures are identical, the shell of loudspeaker are primarily formed, for fixing other structures.The The through hole that cross section is in turn connected to form for multiple circular arcs, the arc of through hole are both provided with the inside of one frame C and the second frame D Madial wall is formed after being fixedly connected with magnetic circuit system A multiple independent goes out acoustic aperture E1.It is multiple go out acoustic aperture E1 around magnetic circuit system A's Central shaft is set.Vibrational system B sounding is spread out of along acoustic aperture E1 is gone out.In the present embodiment, the first frame C and the second frame D structures Identical, therefore loudspeaker front and back is spoken, pore size, quantity are identical.Preferably, can be by varying the first frame C or second Frame D's speaks pore size or quantity to optimize the performance of loudspeaker.3rd frame F includes positive electrode F1 and negative electrode F2.The Three frame F are arranged in the second through hole 92 of magnetic circuit system A, and electricity is carried out by positive electrode F1 and negative electrode F2 and vibrational system B Connection is so that the driving force superposition of vibrational system B.

Magnetic circuit system A includes the 3rd magnetic circuit module 7 and the 4th magnetic circuit module 8.3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 center is respectively arranged with 91 and second through hole 92 of first through hole.First through hole 91, can be used as out acoustic aperture, suitable for shaking Dynamic system B vibrates outflow of speaking.Second through hole 92, suitable for fixing the 3rd frame F, is electrically connected easy to vibrational system B with electrode Connect.3rd magnetic circuit module 7 and the appearance and size of the 4th magnetic circuit module 8 and the cylindrical hole size fit of frame.3rd magnetic circuit Module 7 is fixed on by bonding way in the cylindrical hole of the first frame C.4th magnetic circuit module 8 is fixed on by bonding way In the cylindrical hole of second frame D.3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 are oppositely arranged, and are formed between the two magnetostatic .3rd magnetic circuit module 7 includes the 3rd magnet 71 and the 3rd magnetic bowl 72.4th magnetic circuit module 8 includes the 4th magnet 81 and the 4th Magnetic bowl 82.The bottom of 3rd magnetic bowl 72 and the 4th magnetic bowl 82 is both provided with multiple cylinders and goes out acoustic aperture E2.It is multiple go out acoustic aperture E2 rings Around the centrally disposed of magnetic bowl.3rd magnet 71 is fixed in the 3rd magnetic bowl 72, annular gap is formed with the 3rd magnetic bowl 72, between annular Gap is connected with the acoustic aperture E2 that goes out of 72 bottom of the 3rd magnetic bowl.4th magnet 81 is fixed in the 4th magnetic bowl 82, with 82 shape of the 4th magnetic bowl Gap is circularized, annular gap is connected with the acoustic aperture E2 that goes out of 82 bottom of the 4th magnetic bowl.3rd magnet 71 and the 4th magnet 81 are along magnetic Iron longitudinal direction Zone Full magnetizes, and the magnetizing direction of the 3rd magnet 71 and the 4th magnet 81 is opposite.3rd magnet 71 with 3rd magnetic bowl 72, the 4th magnet 81 and the 4th magnetic bowl 82 are collectively forming a magnetostatic field.Vibrational system B is arranged in magnetostatic field, The sound that vibrational system B vibrations produce is by going out acoustic aperture E1 and going out acoustic aperture E2 outflows.The knot of 3rd magnetic bowl 72 and the 4th magnetic bowl 82 Structure is identical, therefore loudspeaker front and back is spoken, pore size, quantity are identical.Preferably, can be by varying one of magnetic bowl Speak pore size or quantity to optimize the performance of loudspeaker.

Vibrational system B is arranged in the magnetostatic field that the 3rd magnetic circuit module 7 and the 4th magnetic circuit module 8 are formed.Vibrational system B bags Vibrating diaphragm 3, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are included, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are bonded and fixed to vibrating diaphragm in coaxial fashion On 3, both form loop configuration.3 edge side of vibrating diaphragm is adhesively fixed with the first frame C, and opposite side is Nian Jie with the second frame D solid It is fixed.The width of voice coil loudspeaker voice coil coiling is wider compared with the height of voice coil loudspeaker voice coil coiling, and cross sectional shape is flat.The optional scope of line footpath of voice coil loudspeaker voice coil For 0.02mm-0.1mm.First voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are placed in magnetostatic field, by lead be respectively welded in positive electrode F1 with To realize electric signal transmission on negative electrode F2.Stress drives 3 vibration sounding of vibrating diaphragm after first voice coil loudspeaker voice coil 4 connects electric signal.Second 10 energization stress of voice coil loudspeaker voice coil, plays the role of sensitivity superposition, noise reduction, frequency dividing acoustical signal output etc..Vibrating diaphragm 3 includes edge ring with Between plane domain.To improve the rigidity of 3 intermediate region of vibrating diaphragm, high frequency frequency response performance is lifted, can paste and set in plane domain 3 intermediate region of vibrating diaphragm is arranged to arch crown by stiffening plate, and vault can be integrally formed with ring, and dome shape is compared to flat Face shape rigidity increase.If the rigidity still deficiency of vault can also paste one layer of stiffening plate increase vault rigidity on vault, Lift high frequency frequency response performance.The optional scope of 3 thickness of vibrating diaphragm is 10um-100um.Dilval, stainless can be selected in the material of vibrating diaphragm 3 The materials such as steel, polyethylene naphthalate fiber (PEN), polyether ketone fiber (PEEK), the glass-fiber reinforced epoxy resin of FR4 Material.

In the present embodiment, the shape of loudspeaker can be the shapes such as circular, square or track type.The shape of vibrating diaphragm 3 is with raising The shape of sound device is identical, can also be provided in round according to the different shape of loudspeaker, the shape such as square or track type.3rd magnetic Road module 7, the 4th magnetic circuit module 8, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 could be provided as corresponding circular ring shape, side's annular or run Road annular etc..Preferably, loudspeaker is provided in round, and vibrating diaphragm 3 is shaped to circle, the 3rd magnetic circuit module 7, the 4th magnetic circuit Module 8, the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 are circular ring shape.

In example IV, five, six, eight, vibrating diaphragm 3 may be set to be with the first ring 31, the second ring 32 and arch The structure on top 33, as shown in figure 30.Vault 33 can be with extended high frequency frequency response, and the first ring 31 and the second ring 32 are relatively independent, Deformation is not interfere with each other mutually between two rings.First voice coil loudspeaker voice coil 4 is bonded between the first ring 31 and the second ring 32, the second voice coil loudspeaker voice coil 10 are bonded between the second ring 32 and vault 33.First voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 can be as implied above welding manner with Electrode is attached, and the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 can also be respectively welded to two independent electrodes, signal is independently defeated Enter to the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10.By the two-fold ring design of vibrating diaphragm 3, two voice coil loudspeaker voice coils are when being powered vibration, the first voice coil loudspeaker voice coil 4 deform upon the first ring 31, and vibration can produce sound wave, and the second voice coil loudspeaker voice coil 10 deforms upon the second ring 32, and vibration can To produce sound wave, it may finally realize that a loudspeaker plays the role of two groups of independent signal outputs.Because two voice coil loudspeaker voice coils can be only Vertical vibration, so loudspeaker can also implement function such as：First, input electrical signal can be special according to the frequency response of loudspeaker in itself Property does corresponding scaling down processing, and low frequency signal or full range signal are inputted to the first voice coil loudspeaker voice coil 4, meanwhile, by high-frequency signal input to Second voice coil loudspeaker voice coil 10, the first voice coil loudspeaker voice coil 4 are responsible for full range sound reproduction or low-frequency sound as main driving voice coil loudspeaker voice coil or bass driving voice coil loudspeaker voice coil Reset, the second voice coil loudspeaker voice coil 10 is responsible for high-frequency sound playback or high pitch reinforcement as high pitch driving voice coil loudspeaker voice coil；Second, can be by this reality Example is applied as headphone unit, is applied in earphone with round voice field, since the first voice coil loudspeaker voice coil 4 and the second voice coil loudspeaker voice coil 10 drive caused sound Sound is relatively independent, can input unlike signal into the first voice coil loudspeaker voice coil 4, the second voice coil loudspeaker voice coil 10, by two sounds of an individual earphones Circle 4 and 10 produces the effect of surround sound.3rd,, can be with for noise cancelling headphone field using the present embodiment as headphone unit Electric signal is inputted to the first voice coil loudspeaker voice coil 4, the first voice coil loudspeaker voice coil 4 inputs de-noising signal to the second voice coil loudspeaker voice coil 10 as driving voice coil loudspeaker voice coil, by the Two voice coil loudspeaker voice coils 10 send the sound with ambient noise opposite in phase, so as to fulfill decrease of noise functions, because two groups of voice coil loudspeaker voice coil phases of the present embodiment To independence, noise reduction is more preferable compared with traditional noise cancelling headphone.

The structure of the loudspeaker of above example can also be applied to earphone core so that earphone can have preferable balanced Magnetic field and sensitivity.

The above is only the preferred embodiment of the present invention, is not intended to limit the present invention, for this area For technical staff, the utility model can have various modifications and changes.All institutes within the spirit and principle of the utility model Any modification, equivalent substitution, improvement and etc. of work, should be included within the scope of protection of this utility model.

Claims

1. a kind of loudspeaker, including：

Magnetic circuit system, formed with magnetostatic field；

Wherein, the loudspeaker formed with it is multiple go out acoustic aperture, the multiple orifice ring of speaking sets around the central shaft of the magnetic circuit system Put.

2. loudspeaker according to claim 1, it is characterised in that first frame and second frame are set relatively Put, wherein, it is both provided with the multiple circular arcs in cross section on the inside of first frame and second frame and is in turn connected to form Through hole, the madial wall of the through hole is formed after being fixedly connected with the magnetic circuit system multiple independent goes out acoustic aperture.

3. loudspeaker according to claim 2, it is characterised in that the magnetic circuit system includes：

4. loudspeaker according to claim 2, it is characterised in that the magnetic circuit system includes：

Wherein, the first magnetic circuit module is individually fixed in first frame and second basin with the second magnetic circuit module In frame, the vibrational system is arranged between the first magnetic circuit module and the second magnetic circuit module.

5. loudspeaker according to claim 1 or 2, it is characterised in that the magnetic circuit system includes：

Wherein, the bottom of the 3rd magnetic bowl and the 4th magnetic bowl be both provided with it is multiple go out acoustic aperture, the 3rd magnet and Be respectively formed annular gap between four magnet and the 3rd magnetic bowl and the 4th magnetic bowl, the annular gap with it is the multiple go out acoustic aperture Connection；

Preferably, the 3rd magnetic circuit module is individually fixed in first frame and described second with the 4th magnetic circuit module In frame, the vibrational system is arranged between the 3rd magnetic circuit module and the 4th magnetic circuit module.

6. loudspeaker according to claim 3, it is characterised in that the loudspeaker further includes：

3rd frame, including positive electrode and negative electrode；

Wherein, first multipole magnet is provided with first through hole, and second multipole magnet is provided with the second through hole, and described Three frame are arranged in second through hole, be electrically connected by positive and negative electrode and first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil so that Obtain the driving force superposition of first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil.

7. loudspeaker according to claim 4, it is characterised in that the loudspeaker further includes：

3rd frame, including positive electrode and negative electrode；

Wherein, the first magnetic circuit module is provided with first through hole, and the second magnetic circuit module is provided with the second through hole, and described Three frame are arranged in second through hole, be electrically connected by positive and negative electrode and first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil so that Obtain the driving force superposition of first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil.

8. loudspeaker according to claim 5, it is characterised in that the loudspeaker further includes：

3rd frame, including positive electrode and negative electrode；

Wherein, the 3rd magnetic circuit module is provided with first through hole, and the 4th magnetic circuit module is provided with the second through hole, and described Three frame are arranged in second through hole, be electrically connected by positive and negative electrode and first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil so that Obtain the driving force superposition of first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil.

9. according to the loudspeaker any one of claim 6-8, it is characterised in that the vibrating diaphragm includes：

First ring, it is concentric with the vibrating diaphragm center；

Second ring, cyclic structure is concentrically formed with first ring；And

10. loudspeaker according to claim 9, it is characterised in that first voice coil loudspeaker voice coil be arranged at first ring with Between second ring, second voice coil loudspeaker voice coil is arranged between second ring and the vault, is suitable for described first Voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil Independent Vibration.