CN207869372U

CN207869372U - Loud speaker

Info

Publication number: CN207869372U
Application number: CN201820149332.XU
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, it includes 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, the second vibrating diaphragm for driving the voice coil of the first diaphragm oscillations sounding and being oppositely arranged with first vibrating diaphragm, the frame includes the lower surface of the second vibrating diaphragm described in face and the outer surface by lower surface bending extension, second vibrating diaphragm includes ring portion, the fixed part and interconnecting piece each extended over from ring portion outer peripheral edge and inner peripheral, the interconnecting piece is connected with the voice coil, the fixed part includes the first part of lower surface described in face and the second part by first part bending extension, the second part is fixed on the outer surface.Compared with the relevant technologies, the utility model loud speaker reduces frame lower surface with the second vibrating diaphragm glue area to increase the size of product vibrational system, reaches the promotion of speaker performance.

Description

Loud speaker

【Technical field】

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

【Background technology】

With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, the function of mobile phone is extremely various, one of them is just The music function of high-quality, therefore, the loud speaker for playing sound be widely applied Intelligent mobile equipment till now it In.

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, second vibrating diaphragm are fixed on the lower surface of the second vibrating diaphragm described in the frame face by glue.

However, in the loud speaker of the relevant technologies, the cemented surface that second vibrating diaphragm is connected with frame only has one side, fixed effect Fruit is bad, and must could ensure glued stability when gluing with larger glued hem width, to reduce product vibrational system Size, influence the acoustical behavior of product.

Therefore, a kind of new loud speaker solution above-mentioned technical problem must be provided by having.

【Utility model content】

The purpose of this utility model is to provide a kind of increase vibrational system sizes to improve the loud speaker of acoustical behavior.

In order to achieve the above object, the utility model provides a kind of loud speaker comprising frame is contained in the frame Interior vibrational system and the magnetic circuit system for driving the vibrational system vibration sounding, the vibrational system include being fixed on institute State the first vibrating diaphragm of frame upper end, the voice coil of driving the first diaphragm oscillations sounding and the support voice coil and with described first The second vibrating diaphragm that vibrating diaphragm is oppositely arranged, the frame include the lower surface of the second vibrating diaphragm described in face and are bent by the lower surface The outer surface of extension, second vibrating diaphragm include ring portion, the fixed part extended from ring portion outer peripheral edge and from described in The interconnecting piece that ring portion inner peripheral extends, the interconnecting piece are connected with the voice coil, and the fixed part includes following table described in face The first part in face and the second part extended by first part bending, the second part are fixed on the outside table Face.

Preferably, the second part gluing is fixed on the outer surface.

Preferably, the rectangular ring-type of the frame.

Preferably, the outer surface includes two opposite long outer surfaces and connects the two short of the two long outer surfaces Outer surface, the quantity of the second part be it is multiple, multiple second part intervals be fixed on the long outer surface and/ Or short outer surface.

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, the centring disk flexibly support the voice coil and are fixedly connected with second vibrating diaphragm.

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.

Preferably, the loud speaker further includes the conducting terminal that a pair of of group is assigned in the frame, passes through the conducting end Son realizes that the voice coil is electrically connected with external circuitry.

Compared with the relevant technologies, the fixed part of second vibrating diaphragm is designed as including covering by the loud speaker of the utility model The first part of the lower surface of the frame and the second part extended by described first bending, first part and lower surface are solid Fixed connection, second part are fixedly connected with the outer surface of frame, and the second vibrating diaphragm is by increasing the cemented surface with frame, and connection is more Stablize, and the glued hem width of first part and lower surface can be reduced, increase the size of the speaker vibration system, reinforces institute State the acoustical behavior of loud speaker；On the other hand, have when the loud speaker can be made to assemble by covering the outer surface of frame Better water resistance.

【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 the utility model loud speaker；

Fig. 2 is the dimensional decomposition structure diagram of the utility model loud speaker；

Fig. 3 is the cut-away 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.

It please refers to Fig.1 to Fig.3, Fig. 1 is the dimensional structure diagram of the utility model loud speaker, and Fig. 2 is the utility model The dimensional decomposition structure diagram of loud speaker, Fig. 3 are the cut-away view of the line A-A along Fig. 1.The utility model provides one kind and raises one's voice Device 100 comprising frame 10, protecgulum 30, magnetic circuit system 50, vibrational system 70 and conducting terminal 90, the protecgulum 30 are covered on 10 upper end of the frame, the magnetic circuit system 50, vibrational system 70 and conducting terminal 90 are contained in the frame 10.

10 rectangular ring-type of the frame.The frame 10 include far from 30 one end of the protecgulum lower surface 11 and by institute State the outer surface 13 that lower surface 11 extends to the bending of 30 direction of the protecgulum.The outer surface 13 includes two relatively long outsides Surface 131 and the two short outer surfaces 133 for connecting the two long outer surfaces 131.

The magnetic circuit system 50 includes yoke 51, group is assigned in the main magnet steel 53 in 51 center of the yoke, group is assigned in the magnetic It forms the secondary magnet steel 55 of magnetic gap on yoke 51 and around the setting of the main magnet steel 53 interval, be attached at the main pole of the main magnet steel 53 Core 57 and the consequent pole core 59 for being attached at the secondary magnet steel 55.

The vibrational system 70 includes the first vibrating diaphragm 71 being fixed between the frame 10 and the protecgulum 30, one end company 71 other end of the first vibrating diaphragm is connected to be inserted into the voice coil 73 of the magnetic gap, be fixed on the frame 10 and shake with described first The second vibrating diaphragm 75 that film 71 is oppositely arranged and the centring disk 77 being located between the voice coil 73 and the second vibrating diaphragm 75.

First vibrating diaphragm 71 is used for vibration sounding.

The voice coil 73 includes two opposite long axis at 731 and two opposite short axles 733, two long axis sides 731 with The two short axle sides 733 are end to end to surround the voice coil 73.The pair magnet steel 55 sets there are two and is symmetrically mounted on the length 731 direction of axis side.

Second vibrating diaphragm 75 is arranged at intervals at the two short axle sides 733 of the voice coil 73.Second vibrating diaphragm 75 wraps Include ring portion 751, the fixed part 753 extended by 751 outer peripheral edge of ring portion and the company extended from ring portion inner peripheral Socket part 755, the interconnecting piece 755 fit in the centring disk 77.

The fixed part 753 include face described in lower surface 11 first part 7531 and from the first part 7531 to The second part 7533 that bending extends close to 71 direction of the first vibrating diaphragm, the first part 7531 are solid with the lower surface 11 Fixed connection, the second part 7533 are fixed on the outer surface 13.Specifically, the first part 7531 and the following table Face 11 and the second part 7533 are fixed by glue gluing with the outer surface 13.In this way, the second vibrating diaphragm frame There are two cemented surfaces, and connection is more stable, and can reduce the glued hem width of first part 7531 and lower surface 11, is raised described in increase The size of 100 vibrational system of sound device, reinforces the acoustical behavior of the loud speaker 100；

The quantity of the second part 7533 is multiple, and the long outside is fixed at multiple intervals of the second part 7533 Surface 131 and/or the short outer surface 133.In the present embodiment, the quantity of the second part 7533 is six, and It is symmetrical arranged, specifically, two second parts 7533 are individually fixed in the two short lateral surface tables, four described second It is individually fixed at four connecting corners of the long side surface 131 and the short outer surface 133.In this way, being raised described The second part 7533 of second vibrating diaphragm 75 is fixed on outer surface 13, increases fixed effect simultaneously by the 100 groups of timings of sound device Improve water resistance.

The centring disk 77 flexibly supports the voice coil 73 and is fixedly connected with second vibrating diaphragm 75.Specifically, institute It states interconnecting piece 755 and the first part 7531 is attached at side of the centring disk 77 far from the voice coil 73.

The conducting terminal 90 is equipped with a pair of of group assigned in the frame 10, and the sound is realized by the conducting terminal 90 Circle 73 is electrically connected with external circuitry.

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, the vibrational system that is contained in the frame and for driving the vibrational system to shake The magnetic circuit system of dynamic sounding, the vibrational system include the first vibrating diaphragm for being fixed on the frame upper end, drive described first to shake The voice coil of film vibration sounding and the second vibrating diaphragm for supporting the voice coil and being oppositely arranged with first vibrating diaphragm, it is characterised in that： The frame includes the lower surface of the second vibrating diaphragm described in face and bends the outer surface of extension by the lower surface, and described second Vibrating diaphragm includes ring portion, the fixed part extended from ring portion outer peripheral edge and the connection extended from ring portion inner peripheral Portion, the interconnecting piece are connected with the voice coil, and the fixed part includes the first part of lower surface described in face and by described The second part that part bending extends, the second part are fixed on the outer surface.

2. loud speaker according to claim 1, it is characterised in that：The second part gluing is fixed on the outside table Face.

3. loud speaker according to claim 1, it is characterised in that：The rectangular ring-type of frame.

4. loud speaker according to claim 3, it is characterised in that：The outer surface includes two opposite long outer surfaces And two short outer surfaces of the two long outer surfaces of connection, the quantity of the second part be it is multiple, multiple described second Interval is divided to be fixed on the long outer surface and/or short outer surface.

5. loud speaker according to claim 1, it is characterised 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.

6. loud speaker according to claim 5, it is characterised in that：The vibrational system further includes being located in described second to shake Two centring disks between film and the voice coil, the centring disk flexibly support the voice coil and are fixed with second vibrating diaphragm Connection.

7. loud speaker according to claim 5, it is characterised 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.

8. loud speaker according to claim 7, it is characterised in that：The pair magnet steel quantity is two, is symmetrically mounted on institute State long axis edge direction.

9. loud speaker according to claim 1, it is characterised in that：The loud speaker further includes that a pair of of group is assigned in the frame Interior conducting terminal realizes that the voice coil is electrically connected with external circuitry by the conducting terminal.