CN208940234U - A kind of sounding device - Google Patents

Abstract

The utility model discloses a kind of sounding devices.The device includes magnetic circuit system, and magnetic circuit system includes side magnetic circuit part；Vibrating diaphragm, vibrating diaphragm include positioned at the edge part at edge；Metal framework, edge part are arranged on metal framework, and metal framework has the first positioning region；Fixed part, structure, fixed part are arranged on the magnetic circuit part of side fixed part in a ring, and metal framework is arranged on the side of the separate side magnetic circuit part of fixed part, and the second positioning region that cooperation positioning is carried out with the first positioning region is provided on fixed part；Fixed part, structure, fixed part are arranged on the magnetic circuit part of side fixed part in a ring, and metal framework is arranged on the side of the separate side magnetic circuit part of fixed part, and the second positioning region that cooperation positioning is carried out with the first positioning region is provided on fixed part.

Description

A kind of sounding device

Technical field

The utility model relates to electroacoustic switch technology fields, more particularly, to a kind of sounding device.

Background technique

Microspeaker is usually made of vibrational system, magnetic circuit system, support system.Vibrational system include vibrating diaphragm, dome, Voice coil, centring disk etc..Magnetic circuit system includes washer, conductive magnetic yoke and several magnet.Support system include shell, elastic slice and its His inserts etc..

Shell is mostly moulding, is molded metal insert in the shell using insert injection moulding technique.The technique of this mode Complexity, at high cost and yield rate are low.

In addition, the heat dissipation effect of this shell is poor.

It is soft due to vibrating diaphragm in addition, vibrating diaphragm is typically directly bonded on shell, so that the positioning of vibrating diaphragm becomes Difficulty, assembly precision are low.

Accordingly, it is desirable to provide a kind of new technical solution, to solve the above technical problems.

Utility model content

One purpose of the utility model is to provide a kind of new solution of sounding device.

It is according to the present utility model in a first aspect, providing a kind of sounding device.The device includes magnetic circuit system, the magnetic Road system includes side magnetic circuit part；Vibrating diaphragm, the vibrating diaphragm include positioned at the edge part at edge；Metal framework, the edge part quilt It is arranged on the metal framework, the metal framework has the first positioning region；And fixed part, the fixed part are tied in a ring Structure, the fixed part are arranged on the side magnetic circuit part, and the metal framework is arranged on the separate institute of the fixed part The side for stating side magnetic circuit part is provided with the second positioning that cooperation positioning is carried out with first positioning region on the fixed part Portion.

Optionally, first positioning region is lug boss, and second positioning region is recessed portion or notch, the protrusion Portion is inserted into the recessed portion or notch, to be positioned；Or second positioning region is lug boss, first positioning Portion is that perhaps the notch lug boss is inserted into the recessed portion or notch recessed portion, to be positioned.

Optionally, the metal framework and the fixed part are in rectangular ring structure, and first positioning region is located at institute State at least two corners of metal framework, what second positioning region was located at the fixed part at least connects a corner, and with it is described First positioning region is corresponding.

Optionally, the lateral wall flush of the lateral wall of the metal framework and the fixed part.

Optionally, electrical connector is provided on the fixed part, the lead of the coil of the sounding device passes through described Electrical connector is connect with external circuit.

Optionally, the position corresponding with the extension of the lead of the fixed part forms vacancy section, so that institute Extension is stated vacantly to be arranged.

Optionally, the fixed part also has coating groove, and the lead is bonded in the coating groove.

It optionally, further include centring disk, the centring disk is arranged on the side magnetic circuit part and the fixed part Between.

Optionally, the fixed part is permeability magnetic material.

Optionally, the magnetic circuit system is single magnetic circuit system, three magnetic circuit systems or five magnetic circuit systems.

Optionally, the fixed part is permeability magnetic material or non-magnet material.

Optionally, the vibrating diaphragm is adhesively fixed with the metal framework, and the metal framework passes through welding, bonding or card It connects and links together with the fixed part.

According to one embodiment of the disclosure, which has good heat dissipation effect, and processing technology is simple, assembly precision High feature.

By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other Feature and its advantage will become apparent.

Detailed description of the invention

It is combined in the description and the attached drawing for constituting part of specification shows the embodiments of the present invention, and And together with its explanation for explaining the principles of the present invention.

Fig. 1 is the exploded view according to the sounding device of one embodiment of the disclosure.

Fig. 2 is the cross-sectional view according to the sounding device of one embodiment of the disclosure.

Fig. 3 is the schematic diagram according to the hardware of one embodiment of the disclosure.

Fig. 4 is the installation diagram of the hardware and electrical connector according to one embodiment of the disclosure.

Fig. 5 is the installation diagram of the hardware and magnetic circuit system according to one embodiment of the disclosure.

Fig. 6 is the installation diagram according to the hardware of one embodiment of the disclosure, magnetic circuit system and centring disk.

Fig. 7 is the installation diagram of the hardware and voice coil according to one embodiment of the disclosure.

Fig. 8-11 is the cross-sectional view of the electrical connector and hardware according to one embodiment of the disclosure.

Figure 12 is the structural schematic diagram according to the sounding device of one embodiment of the disclosure.

Figure 13 is the structural schematic diagram according to the magnetic circuit system of one embodiment of the disclosure.

Figure 14-16 is the structural schematic diagram according to another sounding device of one embodiment of the disclosure.

Figure 17 is the exploded view of the conductive magnetic yoke and hardware according to one embodiment of the disclosure.

Figure 18 is the installation diagram of the conductive magnetic yoke and hardware according to one embodiment of the disclosure.

Figure 19 is the structural schematic diagram according to the vibrating diaphragm component of one embodiment of the disclosure.

Figure 20 is the installation diagram of the fixed part and magnetic circuit component according to one embodiment of the disclosure.

Figure 21 is the structural schematic diagram according to the electrical connector of one embodiment of the disclosure.

Description of symbols:

11: strengthening course；12: vibrating diaphragm；13: central part；14: edge part；15: voice coil；16: lead；17: center magnetic conductive board； 18: centring magnet；19: side magnet；20: hardware；21: support portion；22: fixed part；23: vacancy section；24: mounting hole； 25: electrical connector；26: insulating part；27: pad；28: interior interconnecting piece；29: outer interconnecting piece；30: protrusion；31: hot molten column；32: Ring-shaped step structure；33: elastic slice；34: long side；35: short side；36: retaining wall；Go out acoustic aperture at 37: the first；Go out acoustic aperture at 38: the second；39: Conductive magnetic yoke；40: the first notches；41: metal framework；42: the second notches；43: lug boss；44: depositing glue groove；45: inboard portion； 46: coating groove；47: excessive glue groove；48: centring disk；49: recessed portion；50: positioning protrusion；51: inclined-plane.

Specific embodiment

The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited The scope of the utility model processed.

Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical Novel and its application or any restrictions used.

Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable In the case of, the technology, method and apparatus should be considered as part of specification.

It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without It is as limitation.Therefore, other examples of exemplary embodiment can have different values.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.

According to one embodiment of the disclosure, a kind of sounding device is provided.The sounding device for earphone, mobile phone, In the equipment such as laptop, VR equipment, AR equipment, television set.The orthographic projection of sounding device be square structure, circular configuration, Ellipsoidal structure etc..It is illustrated by taking rectangle structure as an example below.

As shown in Figure 1,3, sounding device includes two long sides 34 and two short sides 35.The length of long side 34 is greater than short side 35 Length.Voice coil 15, vibrating diaphragm 12, hardware 20, the long side of magnetic circuit system and short side respectively with the long side of sounding device 34 It is corresponding with short side 35.

The device includes magnetic circuit system, vibrational system and hardware 20.Magnetic circuit system include center magnetic path portion and Around the side magnetic circuit part of center magnetic path portion setting.At least one of center magnetic path portion and side magnetic circuit part are provided with forever Magnet.Magnetic gap is formed between center magnetic path portion and side magnetic circuit part.

For example, as shown in Figs. 1-2, center magnetic path portion includes the center on centring magnet 18 and centrally disposed magnet 18 Magnetic conductive board 17.Magnet 19 when magnetic circuit part includes.Centring magnet 18 and side magnet 19 are arranged in conductive magnetic yoke 39.In magnetic conduction The position corresponding with centring magnet 18 and side magnet 19 of yoke 39, which is provided with, deposits glue groove 44.Depositing glue groove 44 can accommodate more Glue, to keep the bonding strength of centring magnet 18 and side magnet 19 in conductive magnetic yoke 39 higher.

It can be, side magnet 19 is provided with multiple.Muti-piece side magnet 19 is arranged around centring magnet 18；It is also possible to side Magnet 19 includes one piece of annular permanent magnet.

Magnetic circuit system can be, but not limited to, three magnetic circuit systems and five magnetic circuit systems.Wherein, three magnetic circuit systems include two It is a in magnet 19 and the centring magnet 18 when being arranged in two between magnet 19.Five magnetic circuit systems include four side magnet 19 and set Set the centring magnet 18 between four side magnet 19.The magnetic circuit system of above two mode has the characteristics that magnetic field strength is big.

In other examples, magnetic circuit system is monomer road system, such as T iron or U iron.

For example, magnetic circuit system includes that U iron and the centring magnet 18 being arranged in U iron are constituted.The side wall of U iron is side magnetic circuit part Point.

For example, magnetic circuit system includes T iron and the annular magnet that is set in outside the stem of T iron.Annular magnet is side magnetic circuit part Point.

As shown in Figs. 1-2, vibrational system includes vibrating diaphragm 12 and voice coil 15.Vibrating diaphragm 12 includes 14 He of edge part positioned at edge Centrally located central part 13.For example, vibrating diaphragm 12 further includes the ring portion between central part 13 and edge part 14.At other In example, vibrating diaphragm 12 is planar structure.The material of vibrating diaphragm 12 is PEEK or other high molecular materials.In the central part of vibrating diaphragm 12 13 are additionally provided with strengthening course 11.Strengthening course 11 can be effectively reduced the diaphagras of vibrating diaphragm 12, reduce the noise of sounding device.

One end of voice coil 15 is connect with the central part 13 of vibrating diaphragm 12, and the other end is inserted into magnetic gap.

As shown in Figure 3-4, the structure in a ring of hardware 20.Ring structure is the annular being closed completely or non-fully The annular of closure.Hardware 20 includes fixed part 22 and support portion 21.For example, in fixed part 22 and support portion 21 at least One is ring structure.Support portion 21 protrudes from the upper surface of fixed part 22 along direction of vibration.Direction of vibration refers to vibrational system Direction when vibration.

Fixed part 22 is arranged on the magnetic circuit part of side.For example, being fixed by glue.Edge part 14 is arranged on support In portion 21.For example, edge part 14 is directly anchored on support portion 21 by glue.

It is also possible that as shown in fig. 6, being provided with centring disk 48 between vibrating diaphragm 12 and hardware 20.It will by glue Edge part 14, the edge of centring disk 48 and fixed part 22 are fixed together.Voice coil 15 by the middle part of glue and centring disk 48, The central part 13 of vibrating diaphragm 12 is fixed together.Centring disk 48 can be effectively reduced the polarization of vibrational system.Centring disk 48 Structure can be configured according to actual needs, it is not limited here.

Fixed part 22 and support portion 21 are integrally formed.For example, metal sheet is passed through stamping forming mode one Form fixed part 22 and support portion 21；Or fixed part 22 and support portion 21 are integrally formed by the way of casting.It is integrally formed Mode there is simple process, the characteristics of process velocity is fast, high yield rate.

Integrally formed mode can also be, but not limited to, plasma cut, laser ablation, anodic attack, chemical attack Etc. modes.Those skilled in the art can select according to actual needs.

Support portion 21 can provide oscillation space for the vibration of vibrating diaphragm 12.Support portion 21 is in continuous structure.Continuous structure Support portion 21 and 14 entirety of edge part of vibrating diaphragm 12 are bonded.The bonding strength of support portion 21 and vibrating diaphragm 12 is high.

Alternatively, support portion 21 includes multistage bulge-structure.The entirety of multistage bulge-structure is in a ring.Air-flow can be into and out of Gap between multistage bulge-structure, so as to improve heat dissipation effect.

The material of hardware 20 is metal, for example, the materials such as copper, iron, nickel.Metal material has heat conduction velocity Fastly, the characteristics of good heat dissipation effect.This makes sounding device under equal-wattage, the temperature of voice coil and the surface temperature of sounding device Lower, temperature tolerance is more excellent.

For example, hardware 20 is permeability magnetic material, for example, the materials such as SPCC, SPCG.Permeability magnetic material is made with magnetic conduction With the magnetic induction of magnetic gap can be effectively improved.This makes that the driving force of sounding device is stronger, vibration sensitivity is higher.

In one example, as shown in Fig. 2, being formed with excessive glue groove 47 on the inside of the upper surface of support portion.It is being applied When glue, extra glue can flow to excessive glue groove 47, without polluting other positions.

As shown in Fig. 2, in one embodiment, the lateral wall of hardware 20 is equal with the lateral wall of side magnetic circuit part Together.Side magnetic circuit part and hardware 20 are exposed to outer.In this example embodiment, sounding device does not need setting shell.Side magnetic circuit The lateral wall of partial lateral wall and hardware 20 is from outside.This setup can make full use of space, from And it is capable of increasing the quality of side magnet 19 or centring magnet 18, improve the magnetic induction of magnetic gap.

In one example, as in Figure 2-4, the structure in a ring of support portion 21.Fixed part 22 includes being located at support portion 21 Inside inboard portion 45.Inside refers to the side that ring structure is surrounded.In this example embodiment, inboard portion 45 increases solid Determine portion 22 and side magnetic circuit part, such as the contact area of side magnet 19.When being fixed, more glue can be applied, to make It obtains hardware 20 and the bonding strength of side magnetic circuit part is higher.

In addition, the setting of inboard portion 45 is so that the magnetic conduction of fixed part 22 acts on more when there is permeability magnetic material to be made Significantly.The magnetic induction of magnetic gap is stronger.

In one example, as shown in figure 4, being provided with electrical connector 25 on hardware 20.For example, electrical connector 25 are arranged on inboard portion 45.The voice coil 15 of sounding device is connect by electrical connector 25 with external circuit.Electrical connector 25 It is insulation between hardware 20.

For example, electrical connector 25 includes pad 27.Pad 27 includes 28 He of interior interconnecting piece positioned at the inside of sounding device Outer interconnecting piece 29 positioned at the outside of sounding device.The lead 16 of voice coil 15 and interior interconnecting piece 28 are welded by laser welding It connects, and external circuit and outer interconnecting piece 29 is welded.The setting of electrical connector 25 is avoided lead 16 directly from hair Outside is drawn out on the inside of acoustic device, to reduce the difficulty of the wiring of lead 16, so that production technology is simpler, reliability is more Height, and avoid lead 16 and other component formation interference.

In one example, as Figure 2-3, coating groove 46 is provided on inboard portion 45.Lead 16 is bonded in In coating groove 46.For example, coating groove 46 is arranged along long side 34.Lead 16 is disposed in long side 34.Coating groove 46 can store More glue, so that the fixation of lead 16 is stronger.

In one example, as shown in Figure 3-4, the position corresponding with the extension of lead 16 of inboard portion 45 is formed Vacancy section 23, so that extension is vacantly arranged.For example, lead 16 is drawn by a corner of voice coil 15, and reserve setting Again along 34 cabling of long side after length.Inboard portion 45 goes material to handle in one end of long side 34, to form vacancy section 23.Vacancy section 23 can reserve space for lead 16, to reduce the risk of routing.

In one example, as shown in Fig. 3,7, two leads 16 are drawn from adjacent two corner of voice coil 15.Metal Structural member 20 is in rectangular ring structure.Rectangular ring structure includes two long sides 34 and two short sides 35.Rectangular ring structure Long side 34 and short side 35 are corresponding with the long side 34 of sounding device and short side 35.Inboard portion 45 two long sides 34 it is same End is respectively arranged with vacancy section 23.

It is also possible to two leads 16 to draw from opposite two corner of voice coil 15.In this way, two vacancy sections 23 are distinguished Positioned at the opposite end of two long sides 34.

Certainly, the setting position of vacancy section 23, size etc. can be configured according to actual needs, it is not limited here.

In one example, as shown in figure 4, electrical connector 25 is arranged on the opposite with vacancy section 23 of every long side 34 One end.In this way, being soldered after lead 16 is drawn in one end of long side 34 in 34 other end of long side.This setup, on the one hand Lead 16 can have longer length, pull power to vibrational system to reduce lead 16, reduce vibrational system Polarization；On the other hand, corner, which is arranged in, in electrical connector 25 can make the fixation of lead 16 become easy.

In one example, as shown in Fig. 3,5, notch is formed in one end of the close vacancy section 23 of coating groove 46.Such as First notch 40.The setting of first notch 40 can significantly improve the length of the overhanging portion of lead 16, to further decrease Lead 16 pulls power to vibrational system, avoids polarization resulting from.

In other examples, lead 16 is along 35 cabling of short side.Coating groove 46 is arranged on the short side 35 of inboard portion 45.

According to another embodiment of the present disclosure, a kind of sounding device is provided.Magnetic circuit system and for example preceding institute of vibrational system It states.As illustrated in figs. 8-11, electrical connector 25 is provided on hardware 20 in this example embodiment.Electrical connector 25 includes pad 27 and the insulating part 26 that is arranged in outside pad 27.The lead 16 of voice coil 15 is connect with pad 27, and passes through pad 27 and external electrical Road connection.Insulating part 26 is attached with hardware 20, and forms insulation.The material of insulating part 26 can be but not office It is limited to plastics, rubber, silica gel, ceramics, glass etc..Pad 27 is attached by the modes and insulating part 26 such as being clamped, being molded.

For example, pad 27 is prepared by metal materials such as stainless steel, copper alloy, aluminium alloys.For example, sheet metal uses Interconnecting piece 28, outer interconnecting piece 29 and the outer interconnecting piece 29 of connection and Nei Lian in the modes such as punch forming, panel beating are integrally formed The conducting portion of socket part 28.Interior interconnecting piece 28 and outer interconnecting piece 29 need to carry out laser welding, therefore are arranged to planar structure, example Such as, circle, rectangle, ellipse or irregular shape etc..

In one example, as shown in figure 8, the overall U-shaped structure of pad 27.Interior interconnecting piece 28 and outer interconnecting piece 29 divide Not as two sides of U-shaped structure.Bottom edge of the conducting portion as U-shaped structure.U-shaped structure makes the spatially structure of pad 27, In order to which 29 relative position of interior interconnecting piece 28 and outer interconnecting piece is arranged.

In one example, as illustrated in figs. 8-11, insulating part 26 includes opposite first surface and second surface.Wherein, The interior interconnecting piece 28 of pad 27 exposes in first surface.Outer interconnecting piece 29 exposes in second surface.For example, outer interconnecting piece 29 is set It sets in the inside of sounding device.Then outer interconnecting piece 29 is located at the outside that sounding device is arranged in.Lead 16 passes through laser welding quilt It is fixed on interior interconnecting piece 28.Lead 16 does not need to draw sounding device, avoids to be formed with other component and interfere, and reduces The difficulty of wiring.

In one example, as shown in figure 3, being provided with mounting hole 24 on hardware 20.Insulating part 26 is mounted on In mounting hole 24.For example, being provided with mounting hole 24 on inboard portion 45.Mounting hole 24 is through-hole.After installation is complete, interior company Socket part 28 is located at the upper surface of inboard portion 45, the i.e. inside of sounding device.Outer interconnecting piece 29 is located at the lower surface of exterior portion, That is the outside of sounding device.When in use, directly external circuit is electrically connected with the formation of outer interconnecting piece 29.The setting of mounting hole 24 So that electrical connector 25 is easily installed, position more accurate.

In one example, as shown in figure 21, first surface is formed with protrusion 30.Interior interconnecting piece 28 reveals in protrusion 30 Out.Pacify protrusion 30 to be embedded in mounting hole 24.For example, interior interconnecting piece 28, first surface are equal with the upper surface of inboard portion 45 Together.The position of first surface being located at other than protrusion 30 is bonded together with hardware 20.Being located at for first surface is convex The position other than portion 30 forms coating area out.Insulating part 26 is bonded in the lower surface of inboard portion 45 by glue.This makes electricity The installation of connector 25 is very easy.

In one example, insulating part 26 includes hot molten column.As shown in figs. 9-10, hot molten column 31 is to be arranged in insulating part 26 On, such as the column surface of first surface.The hole wall of mounting hole 24 forms structure corresponding with the shape of hot molten column 31.Peace The position cooperated with hot molten column 31 in hole 24 is filled, such as first surface is provided with step-like structure.

During installation, first insulating part 26 is inserted into mounting hole 24, and is positioned by hot molten column 31.Then, pass through The mode of hot melt heats hot molten column 31, to form hot melt.Hot melt can flow, to be full of step-like structure.Heat Backstop is formed with step-like structure after melt solidification, so that insulating part 26 be made to be fixed on mounting hole 24.This same energy of mode Insulating part 26 is formed with hardware 20 to be firmly attached.

In one example, as shown in figure 11, insulating part 26 is formed by insert injection moulding, and insulating part 26 is mounted on peace It fills in hole 24.For example, hardware 20, pad 27 first to be navigated to the corresponding position of injection mold, pad 27 before injection molding In mounting hole 24；Then, injection molding material is molded into mold, injection molding material filling mounting hole 24 simultaneously coats hardware 20, after injection molding material solidification, form a fixed connection.

In one example, as shown in figure 8, insulating part 26 is connected in mounting hole 24.For example, being formed on insulating part 26 Card slot.Card slot is the card slot of annular slot or the local setting in insulating part 26.The width of card slot is not less than inboard portion 45 Thickness.Elastic deformation can occur for insulating part 26.During installation, insulating part 26 is caught in mounting hole 24, to form fixation.

For example, the side of one end for insertion of insulating part 26 has and the obtuse-angulate inclined-plane 51 of first surface.Inclined-plane Setting enable insulating part 26 to be precisely directed to mounting hole 24, and card slot can be caught in mounting hole 24 along inclined-plane 51.Absolutely The insertion of edge part 26 is very easy.

In one example, as shown in figure 11, mounting hole 24 has ring-shaped step structure 32.Insulating part 26 it is at least local It is stuck in ring-shaped step structure 32.For example, injection molding material can flow in ring-shaped step structure 32, be formed after cured in injection molding Fixed clamping.Ring-shaped step structure 32 increases the area that insulating part 26 is combined with mounting hole 24, and can make insulating part 26 with Hardware 20 forms clamping, so that insulating part 26 can be securely fixed in mounting hole 24.

In one example, as shown in figure 12, hardware 20 is in rectangular ring structure.Electrical connector 25 is arranged on The corner of hardware 20.Side magnetic circuit part forms electrical connector 25 and avoids.For example, between side magnetic circuit part is formed in corner Gap, so as to effectively avoid electrical connector 25.This setup makes the connection of external circuit and outer interconnecting piece 29 more It is easy to add.

For example, conductive magnetic yoke 39 goes material to handle in corner, to form evacuation.This makes external circuit and outer interconnecting piece 29 Connection is more easier.

In one example, as shown in figure 21, outer interconnecting piece 29 is provided with elastic slice 33 or spring.Outer interconnecting piece 29 is logical It crosses elastic slice 33 or spring is connect with external circuit.Wherein, elastic slice 33 is including main part and by the outwardly directed elastic arm of main part. For example, main part is welded on outer interconnecting piece 29 by laser welding.Elastic arm is protruding, so as to contact outside electronics. Wherein, one end of spring is fixed on outer interconnecting piece 29 by modes such as laser weldings, and the other end is used for and contact outside electronics.

In one example, elastic slice 33 is used as conductor.Main part is arranged in insulating part 26, such as elastic slice is injection-moulded in In insulating part 26.The part of main part is as interior interconnecting piece 28.The elastic arm of elastic slice 33 stretches out insulating part 26.Elastic arm is as outer connection Portion 29.

Elastic slice 33 is capable of forming contact connection, and this connection type is mounted in external equipment convenient for sounding device, And form electrical connection.

In one example, spring is as conductor.Spring is arranged in insulating part, such as spring is injection-moulded in insulating part In 26.A part of spring is as interior interconnecting piece.Another part is as outer interconnecting piece.Spring is equally capable of forming contact company It connects.

In other examples, electrical connector 25 can also be arranged on support portion 21.

Certainly, the those skilled in the art such as the connection type of the structure of electrical connector 25, electrical connector 25 and external equipment It polarity can select according to actual needs.Hardware 20 or permeability magnetic material.It can also be in vibrating diaphragm 12 and metal knot Centring disk 48 is set between component 20.

According to another embodiment of the present disclosure, a kind of sounding device is provided.Magnetic circuit system and for example preceding institute of vibrational system It states.The sounding device includes the acoustic aperture out spoken for side.

In one example, as shown in figure 13, the edge of at least one of conductive magnetic yoke 39 and hardware 20 is to leaning on Nearly mutual direction extends, to form retaining wall 36.For example, the local location at edge does flange processing, to form retaining wall 36.Gear Gap is formed between wall 36 and side magnetic circuit part, for example, the end of retaining wall 36 and side magnetic circuit part forms gap.It is also possible that Formation gap between two adjacent retaining walls 36.Gap is connected to the space that side magnetic circuit part surrounds, and is spoken with forming first Hole 37.The air-flow of the inside of vibrating diaphragm 12 goes out acoustic aperture 37 via first and radiates.

The size and go out that first goes out acoustic aperture 37 can be effectively adjusted by adjusting size, the setting position etc. of retaining wall 36 Sound direction.

In one example, as illustrated in figs. 13-14, the formation gap between two adjacent retaining walls 36.Sounding device Be square structure.Magnet 19 when magnetic circuit part includes.Adjacent side magnet 19 corner separately.Two adjacent retaining walls 36 Positioned at the two sides in a corner of sounding device, go out acoustic aperture 37 to form first in corner.Two retaining walls 36 can be all from magnetic conduction Yoke 39 is drawn, and perhaps all draws from hardware 20 or one is drawn from conductive magnetic yoke 39, another is from hardware 20 It draws.

For example, as shown in figure 14, first go out acoustic aperture 37 be two.Two first go out acoustic aperture 37 and are located at the adjacent of square structure Two corners, such as two first to go out acoustic aperture 37 adjacent or short side 35 is adjacent in long side 34；Or two holes of speaking are located at Two opposite corners.Those skilled in the art may set according to actual needs.

It is also possible that sounding device four corners be each formed with first go out acoustic aperture 37.Above-mentioned set-up mode, sounding dress The sounding effect set is good.

Certainly, in other examples, it is formed with first in long side 34 or short side 35 and goes out acoustic aperture 37.For example, side magnet 19 the middle part of long side 34 or short side 35 formed be connected with inside hole.Gap that the hole and two retaining walls 36 are formed or One retaining wall 36 of person is connected to the gap that a side magnet 19 is formed, so that forming first goes out acoustic aperture 37.

In one example, as shown in figure 16, gap is formed between retaining wall 36 and side magnetic circuit part.Retaining wall 36 is located at side One end of the long side 34 of shape structure.Side magnetic circuit part is located on the short side 35 of square structure.For example, the magnetic when magnetic circuit part includes Iron 19.Gap is formed between the end and retaining wall 36 of side magnet 19.First goes out the direction of speaking of acoustic aperture 37 perpendicular to short side 35.

Or

As shown in figure 15, retaining wall 36 is located at one end of the short side 35 of square structure.Side magnetic circuit part is located at square structure In long side 34.For example, magnet 19 when magnetic circuit part includes.Gap is formed between the end and retaining wall 36 of side magnet 19.First The direction of speaking of acoustic aperture 37 is perpendicular to long side 34 out.

In one example, as illustrated in figs. 8-11, electrical connector 25 is provided on hardware 20.Electrical connector 25 As previously described.As shown in figure 15, conductive magnetic yoke 39 has the relief portion for avoiding electrical connector 25.Electrical connector 25, side magnetic circuit Part and conductive magnetic yoke 39 surround second together and go out acoustic aperture 38.Second goes out acoustic aperture 38 is connected to the space that side magnetic circuit part surrounds.Example Such as, magnet 19 when magnetic circuit part includes multiple.Gap is formed between adjacent side magnet 19.Second goes out acoustic aperture 38 and the gap Connection.Second, which goes out acoustic aperture 38 and first, goes out acoustic aperture 37 collectively as acoustic aperture out, this makes the sound effective value out of sounding device more preferable.

In one example, as shown in figures 15-16, electrical connector 25 is located at the corner of square structure, to be formed in corner Second goes out acoustic aperture 38.This becomes easy electrical connector 25 and the connection of external circuit.

Optionally, second goes out adjacent two corner or opposite two corners that acoustic aperture 38 is located at sounding device.? Under normal conditions, side magnetic circuit part forms gap in corner.This becomes easy the second setting for going out acoustic aperture 38.This field skill Art personnel can select according to actual needs.

In one example, as shown in figure 17, electrical connector 25, which has, is located at the second lug boss 43 gone out in acoustic aperture 38.It is logical Height, width and the setting position of adjustment lug boss 43 are crossed, adjustable second goes out the size of acoustic aperture 38.

In addition, lug boss 43 can also play the role of that foreign matter is stopped to enter.For example, when carrying out laser welding, by In outer interconnecting piece 29 close to the inner space of sounding device, therefore solder joint, clast etc. are easily accessible inner space.Lug boss 43 can have Effect ground prevents solder joint, clast from entering inner space.Lug boss 43 is arc, linear, wave linear shape etc..

In one example, as shown in figs. 17-18, extended by conductive magnetic yoke 39, to form retaining wall 36.In hardware 20 On be provided with the positioning region to match with the end construction of retaining wall 36；Or

Extended by hardware 20, to form retaining wall 36.The end construction with retaining wall 36 is provided in conductive magnetic yoke 39 The positioning region to match.When being installed, end and the positioning region of retaining wall 36 are assembled, this makes 20 He of hardware The positioning accuracy of conductive magnetic yoke 39 is higher, and the assembly of the two is easier.Stability, the consistency of sounding device are higher.

In one example, as shown in figure 17, positioning region is notch.Such as second notch 42.The end of retaining wall 36 is caught in In second notch 42.For example, forming the second notch 42 using stamping forming mode.In assembly, the end of retaining wall 36 can It is just caught in the second notch 42.In this way, the installation of positioning region and end becomes easy, and locating speed is fast.

Certainly, positioning region is not limited to the above embodiments.Those skilled in the art can select according to actual needs.

In one example, at least one of conductive magnetic yoke 39 and hardware 20 are integrally formed.For example, metal Plate goes out conductive magnetic yoke 39 or hardware 20 by the modes integral production such as punch forming, panel beating.It is integrally formed Mode makes conductive magnetic yoke 39 and the intensity of hardware 20 higher, and process velocity is faster.

Those skilled in the art, which can be set according to actual needs first and go out acoustic aperture 37 and second, goes out the position of acoustic aperture 38, number Amount, size etc..Centring disk 48 can also be set between vibrating diaphragm 12 and hardware 20.

According to another embodiment of the present disclosure, a kind of sounding device is provided.Magnetic circuit system and for example preceding institute of vibrational system It states.In the apparatus, hardware 20 uses split type design.

In this example embodiment, as shown in figure 19, sounding device further includes vibrating diaphragm 12, metal framework 41 and fixed part.Metal frame Frame 41 is used as support portion 21.Vibrating diaphragm 12 includes centrally located central part 13 and the edge part 14 positioned at edge.14 quilt of edge part It is arranged on metal framework 41, is adhesively fixed for example, being adhered and fixed by an adhesive.Strengthening course is additionally provided in central part 13 11。

For example, the structure in a ring of metal framework 41.Rectangular cyclic annular, circular annular form or ellipse can be set as needed Shape ring-type etc..For example, edge part 14 is bonded on metal framework 41 by glue.Metal framework 41 has the first positioning region.

In this example embodiment, as shown in figure 20, the structure in a ring of fixed part 22.Fixed part 22 is arranged on side magnetic circuit part On.Such as it is fixed by glue.Metal framework 41 is arranged on the side of the separate side magnetic circuit part of fixed part 22.That is, golden Belong to the top that frame 41 is fixed on fixed part 22.For example, by way of bonding, welding or clamping by metal framework 41 with Fixed part 22 is fixedly connected.The second positioning region that cooperation positioning is carried out with the first positioning region is provided on fixed part 22.

In one example, vibrating diaphragm 12 and metal framework 41 constitute vibrating diaphragm component.Vibrating diaphragm 12 it is soft, directly pacifying It is not easy to be positioned when dress.Metal framework 41 has the shape of setting in order to position, and can effectively prop up vibrating diaphragm 12. When being assembled, directly vibrating diaphragm component is installed on fixed part 22.This makes the installation accuracy of vibrating diaphragm 12 higher, and pacifies It is fast to fill speed, high production efficiency, yields height.

In addition, the setting of the first positioning region and the second positioning region can further increase the installation accuracy of vibrating diaphragm 12.Ability Field technique personnel can be set according to actual needs the specific structure of the first positioning region and the second positioning region.

In other examples, vibrating diaphragm 12 and metal framework 41 can also be assembled individually.First metal framework 41 is assembled to Fixed part 22, then the edge part of vibrating diaphragm 12 is bonded on metal framework 41.

The material of fixed part 22 and metal framework 41 is copper, aluminium, stainless steel and other metal materials.For example, passing through punch forming Mode be integrally formed fixed part 22 or metal framework 41.

For example, fixed part 22 is permeability magnetic material or non-magnet material.When for non-magnet material, fixed part 22 can be more Heat is promptly conducted, heat dissipation is played the role of.It when for permeability magnetic material, handles outside the effect of heat dissipation, fixed part 22 can also Gather magnetic induction line, improves the magnetic induction of magnetic gap.

In one example, as shown in Figure 19-20, the first positioning region is positioning protrusion 50.Second positioning region is recessed portion 49 or notch, such as third notch.Positioning protrusion 50 is inserted into recessed portion 49 or notch, to be positioned；Or

Second positioning region is positioning protrusion 50, and the first positioning region is recessed portion 49 or notch, such as third notch.Positioning Protrusion 50 is inserted into recessed portion 49 or notch, to be positioned.

The mode that positioning protrusion 50 and recessed portion 49 or notch are positioned can be effectively prevented vibrating diaphragm component and occur laterally It is mobile.This makes the reliability positioned between metal framework 41 and fixed part 22 higher.

In one example, as shown in Figure 19-20, metal framework 41 is square structure.Fixed part 22 is in rectangular ring knot Structure, the first positioning, such as positioning protrusion 50 43 at least two corners positioned at metal framework 41.Second positioning region, for example, it is recessed Concave portion 49 is located at least two corners of fixed part 22, and corresponding with the first positioning region.

The mode of corner positioning enables that form the positioning on the two of corner sides more acurrate, so that positioning accuracy is more It is high.

In one example, the lateral wall flush of the lateral wall of metal framework 41 and fixed part 22.This setup, Metal framework 41 and fixed part 22 can make full use of space, and vibrating diaphragm 12 can be done bigger.

In one example, electrical connector 25 is provided on fixed part 22.The lead 16 of the coil of sounding device passes through Electrical connector 25 is connect with external circuit.The structure of electrical connector 25 and with fixed part 22, such as the connection of inboard portion 45 Mode is as previously described.

In one example, the position corresponding with the extension of lead 16 of fixed part 22 forms vacancy section 23, with Extension is set vacantly.

In one example, fixed part 22 also has a coating groove 46, and lead 16 is bonded in coating groove 46.

It in one example, further include centring disk 48, centring disk 48 is arranged on side magnetic circuit part and fixed part 22 Between.

Although being described in detail by some specific embodiments of the example to the utility model, this field It is to be understood by the skilled artisans that example above merely to be illustrated, rather than in order to limit the scope of the utility model.This Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments It modifies.The scope of the utility model is defined by the following claims.

Claims (12)

1. a kind of sounding device, it is characterised in that: including

Magnetic circuit system, the magnetic circuit system include side magnetic circuit part；

Vibrating diaphragm, the vibrating diaphragm include positioned at the edge part at edge；

Metal framework, the edge part are arranged on the metal framework, and the metal framework has the first positioning region；And

Fixed part, structure, the fixed part are arranged on the side magnetic circuit part fixed part in a ring, the metal frame Frame is arranged on the side far from the side magnetic circuit part of the fixed part, is provided on the fixed part and described first Positioning region carries out the second positioning region of cooperation positioning.

2. sounding device according to claim 1, which is characterized in that first positioning region be lug boss, described second Positioning region is that perhaps the notch lug boss is inserted into the recessed portion or notch recessed portion, to be positioned；Or

Second positioning region is lug boss, and first positioning region is recessed portion or notch, described in lug boss insertion In recessed portion or notch, to be positioned.

3. sounding device according to claim 1, which is characterized in that the metal framework and the fixed part are in rectangle Cyclic structure, first positioning region are located at least two corners of the metal framework, and second positioning region is located at described Fixed part at least connects a corner, and corresponding with first positioning region.

4. sounding device according to claim 1, which is characterized in that the lateral wall of the metal framework and the fixed part Lateral wall flush.

5. sounding device according to claim 1, which is characterized in that be provided with electrical connector, institute on the fixed part The lead for stating the coil of sounding device is connect by the electrical connector with external circuit.

6. sounding device according to claim 5, which is characterized in that the extension with the lead of the fixed part Corresponding position forms vacancy section, so that the extension is vacantly arranged.

7. sounding device according to claim 5, which is characterized in that the fixed part also has coating groove, the lead quilt It is bonded in the coating groove.

8. sounding device according to claim 1, which is characterized in that further include centring disk, the centring disk is set It sets between the side magnetic circuit part and the fixed part.

9. sounding device according to claim 1, which is characterized in that the fixed part is permeability magnetic material.

10. sounding device described in any one in -9 according to claim 1, which is characterized in that the magnetic circuit system is single Magnetic circuit system, three magnetic circuit systems or five magnetic circuit systems.

11. sounding device according to claim 1, which is characterized in that the fixed part is permeability magnetic material or non-magnetic Material.

12. sounding device according to claim 1, which is characterized in that the vibrating diaphragm is adhesively fixed with the metal framework, The metal framework is linked together by welding, bonding or clamping with the fixed part.