CN207869371U

CN207869371U - Loud speaker

Info

Publication number: CN207869371U
Application number: CN201820149140.9U
Authority: CN
Inventors: 肖波; 令狐荣林
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2018-01-27
Filing date: 2018-01-27
Publication date: 2018-09-14
Anticipated expiration: 2028-01-27

Abstract

The utility model provides a kind of loud speaker,Including frame,Upper cover,Vibrational system and magnetic circuit system,The vibrational system includes the first vibrating diaphragm being immobilizated between the frame and the upper cover and is immobilizated in the second vibrating diaphragm that the frame is used to support the voice coil,The upper cover includes the first surface of the first vibrating diaphragm described in face and the first outer surface from first surface bending extension,The frame includes the second surface of the second vibrating diaphragm described in face and the second outer surface from second surface bending extension,First vibrating diaphragm includes the first fixed part,First fixed part includes the first part for covering the first surface and the second part for covering first outer surface,Second vibrating diaphragm includes the second fixed part,Second fixed part includes the Part IV for being immobilizated in the Part III of the second surface and being immobilizated in second outer surface.Compared with the relevant technologies, the loud speaker of the utility model, acoustical behavior is strong and water resistance is good.

Description

Loud speaker

【Technical field】

The utility model is related to electroacoustic conversion art more particularly to a kind of loud speakers applying to portable electronic product.

【Background technology】

With the fast development of science and technology, the popularity rate of audio frequency apparatus is higher and higher, high in numerous recreation and amusement modes The music enjoyment of quality is slowly popularized in crowd, and therefore, the loud speaker for playing audio is widely applied intelligent sliding till now In dynamic equipment.

The magnetic circuit system and vibrational system that the loud speaker of the relevant technologies includes frame, is contained in the frame.Institute Vibrational system includes the first vibrating diaphragm, the voice coil of driving the first diaphragm oscillations sounding and the support voice coil second is stated to shake Film, first vibrating diaphragm and second vibrating diaphragm are fixed on first of the first vibrating diaphragm described in the frame face by glue respectively The second surface of second vibrating diaphragm described in surface and the frame face.

However, in the loud speaker of the relevant technologies, first vibrating diaphragm and second vibrating diaphragm only lean between the frame Single side cemented surface fix, must could ensure glued stability when glued with larger glued hem width, to reduce product The size of vibrational system influences the acoustical behavior of product, moreover, poor using the water resistance of the loud speaker of this kind of structure.

Therefore, it is necessary to provide a kind of new loud speaker to solve drawbacks described above.

【Utility model content】

The purpose of the utility model is to overcome above-mentioned technical problem, provide that a kind of acoustical behavior is strong and water resistance is good raises Sound device.

To achieve the goals above, the utility model technology provides a kind of loud speaker, including frame, lid are connected to the basin The upper cover of frame, the vibrational system being contained in the frame and the magnetic circuit system for driving the vibrational system vibration sounding, The vibrational system includes the first vibrating diaphragm being immobilizated between the frame upper end and the upper cover, first vibrating diaphragm is driven to shake It moves the voice coil of sounding and is immobilizated in the second vibrating diaphragm that the frame lower end is used to support the voice coil, the upper cover includes face The first surface of first vibrating diaphragm and the first outer surface extended from first surface bending, the frame includes face The second surface of second vibrating diaphragm and the second outer surface extended from second surface bending, first vibrating diaphragm include At the top of intermediate, extends from the first ring portion that the ball top perimeter extends and from first ring portion and be fixed on institute The first fixed part of upper cover is stated, first fixed part includes first part and the covering described first for covering the first surface The second part of outer surface, the second part are fixed on first outer surface, and second vibrating diaphragm includes the second folding Ring portion, by second ring portion outer peripheral edge extend the second fixed part and by second ring portion inner peripheral extend and with The interconnecting piece of the voice coil connection, second fixed part includes covering the Part III of the second surface and by the third The Part IV that part bending extends, the Part IV are fixed on second outer surface.

Preferably, the upper cover rectangular frame-shaped.

Preferably, first outer surface includes that the two opposite first long outer surfaces and two first length of connection are outer Two first short outer surfaces of side surface, the second part include that the two long adhesive portions being oppositely arranged and two length of connection are viscous The short adhesive portion that the two of socket part are oppositely arranged, the two long adhesive portions are respectively fixed on the two first long outer surfaces, and two The short adhesive portion is respectively fixed on the two first short outer surfaces.

Preferably, the rectangular ring-type of the frame.

Preferably, second outer surface includes that the two opposite second long outer surfaces and two second length of connection are outer The quantity of two second short outer surfaces of side surface, the Part IV is multiple, and multiple Part IV intervals are fixed on The second long outer surface and/or the second short outer surface.

Preferably, the second part and first outer surface and the Part IV and second outer surface It is adhesively fixed by glue.

Preferably, the voice coil include two opposite long axis while and when two opposite short axles, the long axis side with it is described short Axis side is end to end to surround the voice coil, and second vibrating diaphragm is distributed in the two short axle sides of the voice coil.

Preferably, the vibrational system further includes two centering branch being located between second vibrating diaphragm and the voice coil Piece, described centring disk one end are connect with the frame, and the other end flexibly supports the voice coil, and second vibrating diaphragm is attached at institute State centring disk.

Preferably, the magnetic circuit system includes yoke, group is assigned in the main magnet steel in yoke center, group is assigned in the yoke The secondary magnet steel of the main magnet steel setting is gone up and surround, the main pole core of the main magnet steel is attached at and is attached at the secondary magnet steel Consequent pole core.

Preferably, the secondary magnet steel quantity is two, is symmetrically mounted on the long axis edge direction.

Compared with the relevant technologies, the loud speaker of the utility model the first fixed part of first vibrating diaphragm is designed as include It covers the first part of the first surface of the upper cover and covers the second part of the first outer surface of the upper cover, first Second part while being fixedly connected with first surface is divided to be fixedly connected with the first outer surface；By the second of second vibrating diaphragm Fixed part is designed as include the Part III for the second surface for covering the frame and extended by Part III bending the Four parts, Part IV is fixedly connected with the second outer surface of frame while Part III is fixedly connected with second surface； First vibrating diaphragm is by increasing the cemented surface with upper cover, and for the second vibrating diaphragm by increasing the cemented surface with frame, connection is more stable, and can To reduce first part and first surface and the glued hem width of Part III and second surface, increase the speaker vibration system Size, reinforce the acoustical behavior of the loud speaker；It on the other hand, can by covering the first outer surface and the second outer surface So as to which there is better water resistance when the loud speaker assembly.

【Description of the drawings】

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Other attached drawings are obtained, wherein：

Fig. 1 is the dimensional structure diagram of loud speaker provided by the utility model；

Fig. 2 is the part isometric structural decomposition diagram of loud speaker provided by the utility model；

Fig. 3 is the sectional view of the line A-A along Fig. 1.

【Specific implementation mode】

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The all other embodiment obtained, shall fall within the protection scope of the present invention.

Please refer to Fig. 1 to Fig. 3, the loud speaker 100 includes frame 2, covers the upper cover 1 for being connected to the frame 2 and receive Vibrational system 3, magnetic circuit system 4 and the conducting terminal 5 being dissolved in the frame 2.

1 rectangular frame-shaped of the upper cover.The upper cover 1 includes the first surface 11 of frame 2 described in face and from described the The first outer surface 12 that one surface 11 extends to separate 2 direction of frame bending.First outer surface 12 includes two Two first short outer surfaces 122 of the opposite two first long outer surfaces 121 of the first long outer surface 121 and connection.

The frame 2 surrounds the speaker housings of sealing in conjunction with the upper cover 1 and the magnetic circuit system 4 jointly.The basin Frame 2 is generally using the plastic material molding of insulation.

In the present embodiment, 2 rectangular cyclic structure of the frame.

The frame 2 includes second surface 21 far from the upper cover 1 and from the second surface 21 on described The bending of 1 direction of lid extends the second outer surface 22.

Second outer surface 22 includes two second length outside of the two opposite second long outer surfaces 221 and connection The two short outer surfaces 222 on surface 221.

The vibrational system 3 includes the first vibrating diaphragm 31 being immobilizated between the upper cover 1 and the frame 2, one end fixing In first vibrating diaphragm 31 and for drive 31 vibration sounding of the first vibrating diaphragm voice coil 32, be mounted on the voice coil 32 it is separate The centring disk 34 of described first vibrating diaphragm, 31 one end and the second vibrating diaphragm 33 for being attached at the centring disk 34, the centring disk 34 are fixedly connected with the frame 2.

First vibrating diaphragm 31 is used for vibration sounding comprising prolongs 311 at the top of intermediate, from 311 periphery of top dome portion The first ring portion 312 for stretching and the first fixed part 313 for extending and being fixed on the upper cover 2 from first ring portion 312.

First fixed part 313 includes outside the first part 3131 and covering described first for cover the first surface 11 The second part 3132 of side surface 12, the first part 3131 and the first surface 11 and 2 upper end of the frame, which are fixed, to be connected It connects, the second part 3132 is fixed on first outer surface 12.Preferably, the first part 3131 and upper cover 1 with The connection of the connection of the frame 2 and the second part 3132 and first outer surface 12 is connected by glue.This There are two the cemented surfaces of sample, the first vibrating diaphragm 31 and upper cover 1, and connection is more stable, and can reduce the first part 3131 and institute The glued hem width of first surface 11, the i.e. glued hem width of first part 3131 and frame 2 are stated, the vibration of the loud speaker 100 is increased The size of system reinforces the acoustical behavior of the loud speaker 100.

Specifically, the second part 3132 includes the two long adhesive portions 3135 being oppositely arranged and the long bonding of connection two The short adhesive portion 3136 that the two of portion 3135 are oppositely arranged, it is outer that the two long adhesive portions 3135 are respectively fixed on two first length Side surface 121, the two short adhesive portions 3136 are respectively fixed on the two first short outer surfaces 122.In this way, being raised in assembly When sound device 100, institute is completely covered in first outer surface 12 that the side of first vibrating diaphragm 31 is fixed on to the upper cover 1 Upper cover 1 is stated, water resistance is improved.

32 rectangular cyclic structure of the voice coil, the voice coil 32 include two opposite long axis sides 321 and two opposite short Axis side 322, the long axis while 321 with the short axle while 322 end to end surround the voice coil 32.

Second vibrating diaphragm 33 is arranged at intervals at the two short axle sides 322 of the voice coil 32.Second vibrating diaphragm 33 Body does not generate vibration, and effect predominantly prevents first vibrating diaphragm 31 from generating polarization phenomena and reinforces first vibrating diaphragm 31 Vibrating effect.In the present embodiment, second vibrating diaphragm 33 includes the second ring portion 331, from second ring portion 331 The interconnecting piece 333 that outer peripheral edge extends the second fixed part 332 and extends from second ring portion, 331 inner peripheral, the interconnecting piece 333 fit in the centring disk 34.

Second fixed part 332 include face described in second surface 21 Part III 3321 and by the Part III 3321 Part IV 3322 extended to close first vibrating diaphragm, 31 direction bending, the Part III 3321 and described second Surface 21 is fixedly connected, and the Part IV 3322 is fixed on second outer surface 22.Preferably, the Part IV 3322 are fixed by glue gluing with second outer surface 22.In this way, the glue of second vibrating diaphragm 33 and the frame 2 There are two conjunction faces, and connection is more stable, and can reduce the Part III 3321 and the gluing of the second surface 21 broadens, increasing The size of the big speaker vibration system, reinforces the acoustical behavior of the loud speaker 100.

The quantity of the Part IV 3322 is multiple, and second length is fixed at multiple intervals of the Part IV 3322 Outer surface 221 and/or the second short outer surface 222.In the present embodiment, the quantity of the Part IV 3322 is Six, and be symmetrical arranged, specifically, two Part IV 3322 are individually fixed in the two second short outer surfaces 222, Four Part IV 3322 are individually fixed in the described second long outer surface 221 and the second short outer surface 222 At four connecting corners.In this way, in 100 groups of timings of the loud speaker, the Part IV 3322 of second vibrating diaphragm 33 is fixed In outer surface 22, increases fixed effect and improve water resistance.

The quantity of the centring disk 34 is two, and is divided into two short axle sides 322 of the voice coil 32 far from described the One vibrating diaphragm, 31 one end.34 one end of the centring disk is connect with the frame 2, and the other end flexibly supports the voice coil 32.It is described Centring disk 34 is fixedly connected with second vibrating diaphragm 33, and specifically, the interconnecting piece 333 and the Part III 3321 are sticked In side of the centring disk 34 far from the voice coil 32.

The magnetic circuit system 4 includes yoke 41, group is assigned in the main magnet steel 42 in 41 center of the yoke, group is assigned in the yoke On 41 and it is surround the secondary magnet steel 43 of the main magnet steel 42 setting, the main pole core 44 of the main magnet steel 42 is attached at and is attached at institute State the consequent pole core 45 of secondary magnet steel 43.

Specifically, 43 quantity of the pair magnet steel is two, it is symmetrically mounted on 321 direction of long axis side.

5 groups of the conducting terminal is assigned in the frame 1, is electrically connected with the external world for realizing the voice coil 32.

Compared with the relevant technologies, the loud speaker 100 of the utility model sets the first fixed part 313 of first vibrating diaphragm 31 It is calculated as including the first part 3131 of the first surface 11 of the covering upper cover 1 and covering the first outer surface of the upper cover 1 12 second part 3132, second part 3132 and the first outside while first part 3131 is fixedly connected with first surface 11 Surface 12 is fixedly connected；Second fixed part 332 of second vibrating diaphragm 33 is designed as to include the second table for covering the frame 2 The Part III 3321 in face 21 and the Part IV 3322 extended by the bending of the Part III 3321, Part III 3321 and the Part IV 3322 is fixedly connected with the second outer surface 22 of frame 1 while two surfaces 21 are fixedly connected；First vibrating diaphragm 31 By increasing the cemented surface with upper cover 1, for the second vibrating diaphragm 33 by increasing the cemented surface with frame 2, connection is more stable, and can subtract Small first part 3131 and first surface 11 and the glued hem width of Part III 3321 and second surface 21, increase the loud speaker The size of 100 vibrational systems 3, reinforces the acoustical behavior of the loud speaker 100；On the other hand, by covering the first outer surface 12 and second outer surface 22 there is better water resistance when the loud speaker can be made to assemble.

Above-described is only the embodiment of the utility model, it should be noted here that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to this practicality Novel protection domain.

Claims

1. a kind of loud speaker, including frame, lid are connected to the upper cover of the frame, the vibrational system and use being contained in the frame In the magnetic circuit system for driving the vibrational system vibration sounding, the vibrational system includes being immobilizated in the frame upper end and described The first vibrating diaphragm between upper cover, driving the first diaphragm oscillations sounding voice coil and be immobilizated in the frame lower end for branch Support the second vibrating diaphragm of the voice coil, which is characterized in that the upper cover includes the first surface of the first vibrating diaphragm described in face and from institute State the first outer surface that first surface bending extends, the frame includes the second surface of the second vibrating diaphragm described in face and from institute State the second outer surface that second surface bending extends, first vibrating diaphragm includes at the top of intermediate, from the ball top perimeter First ring portion of extension and the first fixed part for extending and being fixed on the upper cover from first ring portion, described first Fixed part includes the first part for covering the first surface and the second part for covering first outer surface, and described second First outer surface is fixed in part, and second vibrating diaphragm includes the second ring portion, by second ring portion outer peripheral edge The second fixed part extended and extended by second ring portion inner peripheral and the interconnecting piece that is connect with the voice coil, described the Two fixed parts include the Part IV for covering the Part III of the second surface and being extended by Part III bending, described Part IV is fixed on second outer surface.

2. loud speaker according to claim 1, which is characterized in that the upper cover rectangular frame-shaped.

3. loud speaker according to claim 2, which is characterized in that first outer surface includes two opposite first length Two first short outer surfaces of the two first long outer surfaces of outer surface and connection, the second part are set relatively including two The two short adhesive portions being oppositely arranged of the two long adhesive portions of long adhesive portion and connection set, the two long adhesive portions are respectively solid Due to the two first long outer surfaces, the two short adhesive portions are respectively fixed on the two first short outer surfaces.

4. loud speaker according to claim 1, which is characterized in that the rectangular ring-type of frame.

5. loud speaker according to claim 4, which is characterized in that second outer surface includes two opposite second length Outer surface and the two second short outer surfaces for connecting the two second long outer surfaces, the quantity of the Part IV is more A, the described second long outer surface and/or the second short outer surface are fixed in multiple Part IV intervals.

6. loud speaker according to any one of claims 1 to 5, which is characterized in that outside the second part and described first Side surface and the Part IV are adhesively fixed by glue with second outer surface.

7. loud speaker according to claim 1, which is characterized in that the voice coil includes that two opposite long axis sides and two are opposite Short axle side, the long axis is end to end while with the short axle to surround the voice coil, and second vibrating diaphragm is distributed in the sound The two short axle sides of circle.

8. loud speaker according to claim 7, which is characterized in that the vibrational system further includes being located in described second to shake Two centring disks between film and the voice coil, described centring disk one end are connect with the frame, and the other end flexibly supports institute Voice coil is stated, second vibrating diaphragm is attached at the centring disk.

9. loud speaker according to claim 7, which is characterized in that the magnetic circuit system includes yoke, group assigned in the magnetic The main magnet steel in yoke center, group are assigned in the yoke and surround the secondary magnet steel of the main magnet steel setting, are attached at the main magnet steel Main pole core and be attached at the consequent pole core of the secondary magnet steel.

10. loud speaker according to claim 9, which is characterized in that the pair magnet steel quantity is two, is symmetrically mounted on institute State long axis edge direction.