CN208029083U

CN208029083U - Loud speaker

Info

Publication number: CN208029083U
Application number: CN201820254196.0U
Authority: CN
Inventors: 时阳; 朴健; 张绍元
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2018-02-11
Filing date: 2018-02-11
Publication date: 2018-10-30
Anticipated expiration: 2028-02-11

Abstract

The utility model is related to acoustic-electric conversion arts, disclose a kind of loud speaker, it include the shell with receiving space, the magnetic circuit system and vibrational system being contained in the receiving space, the vibrational system includes the vibrating diaphragm for being fixed on the shell and the voice coil for driving the diaphragm oscillations sounding, the loud speaker further includes the centring disk for supporting the voice coil and being electrically connected with the voice coil, the centring disk includes and fixed first fixed part of the voice coil, with fixed second fixed part of the shell, and the elasticity arm of connection first fixed part and second fixed part, the centring disk is electrically connected with the voice coil, the centring disk further includes the conductive part extended to form from second fixed part, the conductive part includes the conductive welding disk extended to outside the shell.The circuit structure of loud speaker provided by the utility model is simple, can reduce cost, ensure reliability.

Description

Loud speaker

Technical field

The utility model is related to acoustic-electric conversion art, more particularly to a kind of loud speaker.

Background technology

With the fast development of science and technology, the popularity rate of audio frequency apparatus is higher and higher, and requirement of the people to audio frequency apparatus is not only It is limited only to the broadcasting of audio, more requires to propose more require to the reliability of audio frequency apparatus.And in audio frequency apparatus, loud speaker It is a kind of common electronic component, mainly with the broadcasting with audio signal, reliability is directly affected with loud speaker The function of audio frequency apparatus.The loud speaker of the prior art includes shell, is contained in shell sounding monomer is set to sounding monomer Interior internal circuit board, the weld tabs on sounding monomer, the extraction circuit board for being connect with external circuit, will usually draw circuit Plate is welded on weld tabs, sounding monomer is connected to external circuit using extraction circuit board.

The inventor of the utility model has found that speaker circuit in the prior art is complicated, assembly cost is high, and welds When connecing the internal circuit board and the extraction circuit board, it is bad that easily there is a phenomenon where spot welding, leads to fault, and then influence The reliability of loud speaker.

Utility model content

The purpose of this utility model is to provide a kind of loud speakers, and circuit structure is simple, can reduce cost, ensure reliably Property.

In order to solve the above technical problems, the embodiment of the utility model provides a kind of loud speaker, including there is receiving The shell in space, the magnetic circuit system being contained in the receiving space and vibrational system, the vibrational system include being fixed on institute State the vibrating diaphragm of shell and drive the voice coil of the diaphragm oscillations sounding, the loud speaker further include the support voice coil and with it is described The centring disk of voice coil electrical connection, the centring disk include consolidating with fixed first fixed part of the voice coil, with the shell The elasticity arm of fixed the second fixed part and connection first fixed part and second fixed part, the centring disk is also Include extending to the conductive part formed outside the shell from second fixed part.

The utility model embodiment in terms of existing technologies, is equipped with the centring disk being electrically connected with voice coil, described Centring disk is fixed with voice coil and shell respectively, and the conductive part of the centring disk includes the conduction extended to outside the shell Pad, the conductive welding disk can be used for connecting the external circuit of the loud speaker, and the loud speaker is allow to pass through the centering Branch piece realizes its internal being electrically connected with external circuit, eliminates the weld tabs structure in loud speaker, not only simplifies the prior art Middle internal circuit board and the welding structure for drawing circuit board, have saved assembly cost, while being also avoided that spot welding is bad caused Fault ensures that the performance of the loud speaker is stablized, improves its reliability.

In addition, the vibrating diaphragm includes intermediate top dome and is connect with the edge of the intermediate top dome and around being located at the centre The ring of the periphery of top dome；The ring includes the inward flange being fixedly connected with first fixed part, is fixed with described second The outer edge and the connection inward flange and the outer peripheral bending part that portion is fixedly connected, the bending part is towards far from described The direction of elasticity arm is protruded to avoid the elasticity arm.It is arranged such and can be protected while ensureing centring disk fix stably The bending part for demonstrate,proving the vibrating diaphragm avoids the elastic force wall, the normal work that can not be influenced by the centring disk.

In addition, the inward flange is folded between the intermediate top dome and the voice coil, the bending part is towards close to described The direction of magnetic circuit system protrudes；Alternatively, first fixed part is folded between the inward flange and the voice coil, the bending Portion is protruded towards the direction far from the magnetic circuit system.

In addition, the voice coil has voice coil leads, first fixed part, which is extended with, to be electrically connected with the voice coil leads Electrical connection section.

In addition, the electrical connection section from first fixed part towards far from second fixed part direction extend and with institute State the conjunction of intermediate topstick.The electrical connection section can protect the not pliable deformation of electrical connection section with intermediate topstick conjunction, into And ensure the performance of the loud speaker.

In addition, first fixed part is racetrack, the centring disk further includes the two of connection first fixed part The support portion on long axis side, the electrical connection section are formed in the side that the support portion deviates from the intermediate top dome.The support portion The electrical connection section can be further protected, two long axis of first fixed part are simultaneously supported, avoids first fixed part Two long axis deformed or fracture since shape is more long narrow, and then improve the reliability of the loud speaker.

In addition, the shell corresponds to, the conductive part is jagged through opening up, and the conductive part is extended to through the notch Outside the receiving space.Such setting can protect the conductive part, and the conductive part is avoided to be squeezed and deformed by the shell, And then ensure that the performance of the loud speaker is stablized.

In addition, the shell include the bottom plate for supporting the magnetic circuit system, the side plate extended from the bottom edge and Roof that is opposite with the bottom plate and being connect with the side plate, the roof are formed with towards the bottom plate direction and extend to the receipts Hold the support arm in space, the support arm is equipped with around the periphery for being located at the magnetic circuit system and to abut the magnetic circuit system remote Stage portion from the bottom plate side, second fixed part and the vibrating diaphragm are folded to be located at the stage portion far from the magnetic circuit system The side of system.The stage portion on the support arm is around the periphery for being located at the magnetic circuit system and to abut the magnetic circuit system remote From the bottom plate side, can coordinate with the bottom plate from both sides and support the fixed magnetic circuit system, make the magnetic circuit system with The fixed structure of the shell is more firm, to improve the stability and reliability of the loud speaker.

In addition, the roof offers the through-hole opposite with the vibrational system, the roof be correspondingly formed surround it is described The hole wall of through-hole, the hole wall are connect with the stage portion, and the notch is formed there through from the hole wall to the side plate direction And it is connected to the through-hole.

In addition, the notch extends from the outer surface of the roof, the loud speaker further include lid be located at the through-hole and The upper cover plate of the notch, the upper cover plate is arranged and surrounds ante-chamber with the vibrating diaphragm interval, before the side plate correspondence will be described The sound channel that chamber is in communication with the outside；The conductive part include positioned at the hull outside conductive welding disk and connection described in lead The adjutage of electrical bonding pads and second fixed part, the adjutage are fixed in the notch and are folded in the upper cover plate Between the roof.Be arranged such can make the sound wave that is sent out when the diaphragm oscillations from the ante-chamber via it is described go out sound it is logical Road is propagate directly to outside the shell, ensures the acoustical quality of the loud speaker；The adjutage is by the upper cover plate and described Roof grips jointly, ensures that the adjutage extends the shell along the notch, prevents the adjutage from bending Deformation or fracture, to ensure that the performance of the loud speaker is stablized.

Description of the drawings

One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys The bright restriction not constituted to embodiment, the element with same reference numbers label is expressed as similar element in attached drawing, removes Non- to have special statement, composition does not limit the figure in attached drawing.

Fig. 1 is the dimensional structure diagram of the loud speaker in the utility model embodiment；

Fig. 2 is the stereochemical structure exploded view of the loud speaker in the utility model embodiment；

Fig. 3 is the stereochemical structure exploded view of the vibrational system of the loud speaker in the utility model embodiment；

Fig. 4 is the schematic diagram of the centring disk of the loud speaker in the utility model embodiment；

Fig. 5 is the dimensional structure diagram of the shell of the loud speaker in the utility model embodiment；

Fig. 6 is the stereochemical structure sectional view of the loud speaker in the utility model embodiment；

Fig. 7 is the stereochemical structure sectional view of the loud speaker removing upper cover plate in the utility model embodiment；

Fig. 8 is that the centring disk of the loud speaker in the utility model embodiment and the assembling stereochemical structure of vibrational system are shown It is intended to.

Specific implementation mode

It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Each embodiment of type is explained in detail.However, it will be understood by those skilled in the art that each in the utility model In embodiment, many technical details are proposed in order to make reader more fully understand the utility model.But even if without this A little technical details and various changes and modifications based on the following respective embodiments, can also realize each claim of the utility model Technical solution claimed.

The utility model embodiment is related to a kind of microphone device 100, as shown in Figure 1 and Figure 2, including with receiving space 101 shell 10, the vibrational system 20 being contained in receiving space 101 and magnetic circuit system 30, in conjunction with reference to figure 3, vibrational system 20 include the voice coil 22 of the vibrating diaphragm 21 and driving 21 vibration sounding of vibrating diaphragm that are fixed on shell 10, and loud speaker 100 further includes support sound Circle 22 and the centring disk 40 that is electrically connected with voice coil 22, please also refer to Fig. 4, centring disk 40 includes and voice coil 22 fixed the One fixed part 41 with 10 fixed second fixed part 42 of shell and connect the bullet of the first fixed part 41 and the second fixed part 42 The arm of force 43, centring disk 40 further include the conductive part 44 extended to form from the second fixed part 42, and conductive part 44 includes extending to shell Conductive welding disk 441 outside body 10.

The utility model embodiment in terms of existing technologies, is equipped with the centring disk 40 being electrically connected with voice coil 22, Centring disk 40 is fixed with voice coil 22 and shell 10 respectively, and the conductive part 44 of centring disk 40 includes extending to outside shell 10 Conductive welding disk 441, conductive welding disk 441 can be used for connecting the external circuit of loud speaker 100, loud speaker 100 allow to pass through centering Its inside of the realization of branch piece 40 is electrically connected with external circuit, is eliminated the weld tabs structure in loud speaker 100, is not only simplified existing The welding structure of internal circuit board and extraction circuit board, has saved assembly cost, while being also avoided that spot welding is bad and leading in technology The fault of cause ensures that the performance of loud speaker 100 is stablized, improves its reliability.

The realization details of present embodiment is specifically described below, the reality that the following contents only provides for convenience of understanding Show details, the detail in present embodiment is not the necessary of implementation this programme.

Loud speaker 100 includes the shell 10 with receiving space 101, vibrational system 20, magnetic circuit system 30, centring disk 40, upper cover plate 50.

Specifically, as shown in figure 5, shell 10 includes bottom plate 11, side plate 12, roof 13, support arm 14.Bottom plate 11 is for branch Magnetic circuit system 30 is supportted, side plate 12 extends from 11 edge of bottom plate, and roof 13 is opposite with bottom plate 11 and is connect with side plate 12, support arm 14 It is extended in receiving space 101 from roof 13 towards 11 direction of bottom plate, support arm 14 is equipped with stage portion 141, please with reference to figure 6, stage portion 141 is around the periphery for being located at magnetic circuit system 30 and abuts side of the magnetic circuit system 30 far from bottom plate 11, centring disk 40 The second fixed part 42 and the vibrating diaphragm 21 of vibrational system 20 folded be located at side of the stage portion 141 far from magnetic circuit system 20, stage portion 141 support fixed magnetic circuit system 30 with the cooperation of bottom plate 11 from the both sides of magnetic circuit system 30, ensure magnetic circuit system 30 and shell 10 Fixed structure is more firm, to improve the stability and reliability of loud speaker 100.Centring disk 40 is fixed in the present invention In voice coil 22 close to one end of vibrating diaphragm 21, in other preferred embodiments of the utility model, centring disk 40 can also be fixed In the one end of voice coil 22 far from vibrating diaphragm 21, shell, which is corresponded to, to be open on side plate 12 so that conductive part 44 extends to outside shell 10 i.e. It can.

Preferably, shell 10 corresponds to conductive part 44 through opening up jagged 1302, and notch 1302 extends from the outer of roof 13 Surface, conductive part 44 are extended to through notch 1302 outside receiving space 101, so can be reserved for conductive part 44 by notch 1302 Wider space avoids conductive part 44 from being deformed by the extruding of shell 10 to protect conductive part 44, and then ensures loud speaker 100 Performance is stablized.

More preferably, roof 13 offers the through-hole 1301 opposite with vibrational system 20, and roof 13, which is correspondingly formed, surrounds through-hole 1301 hole wall 131, as shown in fig. 7, hole wall 131 is connect with stage portion 141, notch 1302 is from hole wall 13 to 12 direction of side plate It is formed there through and is connected to through-hole 1301, to ensure that notch 1302 in the same plane, facilitates 44 edge of conductive part with through-hole 1301 Extend shell 10 on the direction of vibration of vibrational system 20.

Vibrational system 20 includes vibrating diaphragm 21 and voice coil 22, is used for vibration sounding.Vibrating diaphragm 21 includes intermediate top dome 211 and folding Ring 212, ring 212 connect with the edge of intermediate top dome 211 and around the periphery for being located at intermediate top 211, specifically include inward flange 2121, the bending part 2123 of outer edge 2122, connection inward flange 2121 and outer edge 2122.Inward flange 2121 and centring disk 40 The first fixed part 41 be fixedly connected, outer edge 2122 is fixedly connected with the second fixed part 42 of centring disk 40, by vibrating diaphragm 21 with 40 secure bond of centring disk；Bending part 2123 is protruded towards the direction of the elasticity arm 43 far from centring disk 40 to avoid bullet The arm of force 43 ensures that the bending part 2123 of vibrating diaphragm 21 avoids elastic force while ensureing centring disk 40 with 21 fix stably of vibrating diaphragm Wall 43, the normal work that vibrating diaphragm 21 can not be influenced by centring disk 40.

It is noted that as shown in figure 8, inward flange 2121 is folded in intermediate top dome 211 and sound in the present embodiment Between circle 22, bending part 2123 is protruded towards close to the direction of magnetic circuit system 30；In practical application, the first of centring disk 40 is solid Determining portion 41 can be folded between inward flange 2121 and voice coil 22, and bending part 2123 is prominent towards the direction far from magnetic circuit system 30 at this time Go out.

Voice coil 22 has voice coil leads 221, convenient for being electrically connected with the realization of centring disk 40.

Magnetic circuit system 30 includes the magnet steel being fixed on bottom plate 11 and the pole piece (figure does not indicate) set on magnet steel upper surface, magnetic Magnetic field can be formed in road system 30, for driving 20 vibration sounding of vibrational system.

Centring disk 40 is electrically connected with voice coil 22, including the first fixed part 41, the second fixed part 42, the first fixed part of connection 41 and second elasticity arm 43 of fixed part 42, the conductive part 44 that is extended to form from the second fixed part 42, wherein conductive part 44 wraps The conductive welding disk 441 extended to outside shell 10 is included, can be electrically connected with external circuit；In addition, the first fixed part 41 be extended with The electrical connection section 45 that voice coil leads 221 are electrically connected, by centring disk 40 may be implemented 100 inside voice coil 22 of loud speaker with it is outer The electrical connection of portion's circuit.

It is noted that electrical connection section 45 extends from the first fixed part 41 towards the direction far from the second fixed part 42, and It is bonded with the intermediate top dome 211 of vibrating diaphragm 21, to ensure the not pliable deformation of electrical connection section 45, and then ensures the property of loud speaker 100 Energy.

In the present embodiment, the first fixed part 41 is racetrack, and centring disk 40 further includes the first fixed part 41 of connection Two long axis sides support portion 46, electrical connection section 45 be formed in support portion 46 deviate from intermediate top dome 211 side.Support portion can be with Electrical connection section 45 is protected, makes the not pliable deformation of electrical connection section 45, simultaneously supports two long axis of the first fixed part 41 of racetrack, It avoids two long axis of the first fixed part 41 from deforming or be broken since shape is more long narrow, and then improves the reliability of loud speaker 100.

The lid of upper cover plate 50 is located on through-hole 1301 and notch 1302, is spaced with vibrating diaphragm 21 and is arranged and surrounds ante-chamber 1011.It can With understanding, side plate 12 corresponds to the sound channel 1201 that ante-chamber 1011 is in communication with the outside, and conductive part 44 includes that connection is conductive The adjutage 442 of pad 441 and the second fixed part 42, adjutage 442 are fixed in notch 1302 and are folded in upper cover plate 50 Between roof 13, so that the sound wave that vibrating diaphragm 21 is sent out when vibrating is propagate directly to shell from ante-chamber 1011 via sound channel 1201 Outside body 10, ensure the acoustical quality of loud speaker 100；Adjutage 442 is capped plate 50 and roof 13 grips jointly, Ke Yibao Card adjutage 44 extends shell 10 along notch 1302, prevents the bending of adjutage 44 deformation or fracture, is raised to be further ensured that The performance of sound device 100 is stablized.

It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model And range.

Claims

Include shell with receiving space, the magnetic circuit system being contained in the receiving space and vibration 1. a kind of loud speaker System, it is characterised in that：The vibrational system includes being fixed on the vibrating diaphragm and the driving diaphragm oscillations sounding of the shell Voice coil, the loud speaker further include the centring disk for supporting the voice coil and being electrically connected with the voice coil, the centring disk packet Include with fixed first fixed part of the voice coil, with fixed second fixed part of the shell and connect described first and fix The elasticity arm in portion and second fixed part, the centring disk further include extending to the shell from second fixed part The conductive part that outside is formed.
2. loud speaker according to claim 1, which is characterized in that the vibrating diaphragm include intermediate top dome and with the centre The edge of top dome connects and around the ring for the periphery for being located at the intermediate top dome；The ring includes solid with first fixed part Surely the inward flange that connects, the outer edge being fixedly connected with second fixed part and the inward flange and the outer edge are connect Bending part, the bending part towards far from the elasticity arm direction protrude to avoid the elasticity arm.
3. loud speaker according to claim 2, which is characterized in that the inward flange be folded in the intermediate top dome with it is described Between voice coil, the bending part is protruded towards close to the direction of the magnetic circuit system；Alternatively, first fixed part be folded in it is described Between inward flange and the voice coil, the bending part is protruded towards the direction far from the magnetic circuit system.
4. loud speaker according to claim 3, which is characterized in that the voice coil has voice coil leads, and described first fixes Portion is extended with the electrical connection section being electrically connected with the voice coil leads.
5. loud speaker according to claim 4, which is characterized in that the electrical connection section is from first fixed part towards separate The direction of second fixed part extends and is closed with the intermediate topstick.
6. loud speaker according to claim 5, which is characterized in that first fixed part is racetrack, the centering branch Piece further includes the support portion on the two long axis sides for connecting first fixed part, and the electrical connection section, which is formed in the support portion, to deviate from The side of the intermediate top dome.
7. loud speaker according to claim 1, which is characterized in that it is scarce through offering that the shell corresponds to the conductive part Mouthful, the conductive part is extended to through the notch outside the receiving space.
8. loud speaker according to claim 7, which is characterized in that the shell includes the bottom for supporting the magnetic circuit system Plate, the side plate extended from the bottom edge and roof that is opposite with the bottom plate and being connect with the side plate, the roof It is formed with the support arm extended in the receiving space towards the bottom plate direction, the support arm is equipped with around being located at the magnetic The periphery of road system simultaneously abuts stage portion of the magnetic circuit system far from the bottom plate side, second fixed part and described shakes Film is folded to be located at side of the stage portion far from the magnetic circuit system.
9. loud speaker according to claim 8, which is characterized in that the roof offers opposite with the vibrational system Through-hole, the roof are correspondingly formed the hole wall for surrounding the through-hole, and the hole wall is connect with the stage portion, and the notch is by institute Hole wall is stated to be formed there through to the side plate direction and be connected to the through-hole.
10. loud speaker according to claim 9, which is characterized in that the notch extends from the outer surface of the roof, institute It further includes the upper cover plate that lid is located at the through-hole and the notch to state loud speaker, and the upper cover plate is arranged simultaneously with the vibrating diaphragm interval Ante-chamber is surrounded, the side plate corresponds to the sound channel that the ante-chamber is in communication with the outside；The conducting position is in outside the shell Conductive welding disk and the connection conductive welding disk and second fixed part adjutage, the adjutage is fixed in institute It states notch and is folded between the upper cover plate and the roof.