CN207560323U

CN207560323U - Loud speaker

Info

Publication number: CN207560323U
Application number: CN201721052710.4U
Authority: CN
Inventors: 王磊; 张龙
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2017-08-22
Filing date: 2017-08-22
Publication date: 2018-06-29
Anticipated expiration: 2027-08-22

Abstract

The utility model provides a kind of loud speaker, including frame and the vibrational system and magnetic circuit system that are individually fixed in the frame, the magnetic circuit system includes lower clamp plate, it is fixedly installed on the main magnet steel of the lower clamp plate, the secondary magnet steel of magnetic gap is formed around the main magnet steel setting and with the main magnet steel interval and is covered on the upper clamp plate annular in shape of the secondary magnet steel, the lower clamp plate is fixed on the frame, the frame is made of metal material, the upper clamp plate is located at the side of the close vibrational system of the frame and is an integral molding structure with the frame, the pair magnet steel is fixed on the side of the close lower clamp plate of the upper clamp plate.Compared with the relevant technologies, the loud speaker acoustical behavior of the utility model is good.

Description

Loud speaker

【Technical field】

The utility model is related to acoustic-electric field more particularly to a kind of loud speakers for applying to portable electronic product.

【Background technology】

With the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile equipment Among, mobile phone is undoubtedly most common, most portable mobile terminal device.It is more and more with the functional requirement of mobile phone, with it Interior component integration degree is higher and higher, and each component is miniaturizated to development trend, such as loud speaker.

The loud speaker of the relevant technologies includes housing and is individually fixed in the vibrational system and magnetic circuit system of the housing, described What magnetic circuit system included being fixed on the magnetic bowl of the frame, be fixed on the magnet steel of the magnetic bowl and being stacked at the magnet steel is in ring The upper clamp plate of shape.

However, in the loud speaker of the relevant technologies, because the structural unit of the magnetic circuit system is more and respective independence, then The space occupied is larger, does not utilize the miniaturization for improving magnetic conduction effect and loud speaker.

Therefore, a kind of new loud speaker must be provided by, which having in fact, solves above-mentioned technical problem.

【Utility model content】

The purpose of this utility model is to provide a kind of good loud speakers of acoustical behavior.

In order to achieve the above object, the utility model provides a kind of loud speaker, including frame and is individually fixed in described The vibrational system and magnetic circuit system of frame, the vibrational system include sound film and drive the voice coil of the sound film vibration sounding, institute State main magnet steel that magnetic circuit system includes lower clamp plate, is fixedly installed on the lower clamp plate, around the main magnet steel setting and with it is described Main magnet steel interval forms the secondary magnet steel of magnetic gap and is covered on the upper clamp plate annular in shape of the secondary magnet steel, and the lower clamp plate is consolidated Due to the frame, the frame is made of metal material, and the upper clamp plate is located at the close vibrational system of the frame Side and be an integral molding structure with the frame, the pair magnet steel be fixed on the upper clamp plate close to the lower clamp plate Side.

Preferably, the secondary magnet steel is fixed on the upper clamp plate by glued mode.

Preferably, the secondary magnet steel includes two and is located at the opposite sides of the main magnet steel respectively.

Preferably, the loud speaker further includes the elastic supporting member for supporting optical member that the voice coil is flexibly supported below the voice coil, The elastic supporting member for supporting optical member includes vibrating diaphragm, the flexible PCB being fixed in above the vibrating diaphragm and support vibrating diaphragm and flexible PCB Supporting walls, the supporting walls are fixedly connected with upper clamp plate, the vibrating diaphragm and the voice coil by the flexible PCB with it is outer Portion's circuit transmission electric signal.

Preferably, the frame is made of ferrous material.

Preferably, the loud speaker further includes the washer far from the lower clamp plate side positioned at the upper clamp plate, described Washer is fixed on the frame, and the vibrational system is fixedly supported to the frame by the washer.

Compared with the relevant technologies, frame is made by metal material in the loud speaker of the utility model, by the magnetic circuit system Upper clamp plate be set to the lower section of the frame and be structure as a whole with the frame, while the secondary magnet steel is glued at described Upper clamp plate saves the frame structure so as to be equivalent to, the frame is served as the part for the magnetic circuit system so that institute It states loud speaker and makes full use of more spaces for setting the magnetic circuit system, so as to increase the magnetic conduction of magnetic circuit system effect Fruit so that the oscillation intensity of the vibrational system increases, and effectively improves the acoustical behavior of the loud speaker.

【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 part-structure decomposition diagram of the utility model loud speaker；

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

Fig. 4 is sectional views of the Fig. 1 along line B-B.

【Specific embodiment】

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model Embodiment.Based on the embodiment in the utility model, 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. 1-4, wherein, Fig. 1 is the dimensional structure diagram of the utility model loud speaker；Fig. 2 is this reality With the part-structure decomposition diagram of New-type loudspeaker.Fig. 3 is sectional views of the Fig. 1 along line A-A；Fig. 4 is Fig. 1 cuing open along line B-B View..The utility model provides a kind of loud speaker 100, including frame 1, vibrational system 2, magnetic circuit system 3, cover board 4, washer 5 With elastic supporting member for supporting optical member 6.

The frame 1 is made of metal material.In present embodiment, the frame 1 specifically selects ferrous material to be made.

The vibrational system 2 includes being fixed on the vibrating diaphragm 21 of one end of the frame 1 and drives what the vibrating diaphragm 21 vibrated Voice coil 22.The cover board 4 presses the vibrating diaphragm 21 set on the frame 1.

The magnetic circuit system 3 is fixed on the frame 1, for generating voice coil 22 described in vibrational system 2 described in field drives Up-down vibration, so as to drive 21 vibration sounding of vibrating diaphragm.

The magnetic circuit system 3 includes upper clamp plate 31, lower clamp plate 32, main magnet steel 33, secondary magnet steel 34 and pole piece 36.

Specifically, 31 structure annular in shape of upper clamp plate, the upper clamp plate 31 is located at the close vibration of the frame 1 It the side of system 2 and is an integral molding structure with the frame 1, the two is integrally formed in a ring.Because the frame 1 is metal material Material is made, therefore when the integral structure that it is formed with the upper clamp plate 31, is equivalent to and eliminates frame structure, increases described The occupied space of magnetic circuit system 3 effectively increases the magnetic conduction intensity of the magnetic circuit system 3.For example, the side of the upper clamp plate 31 Direction extension to the lower clamp plate 32 is the structure of the frame 1.

The lower clamp plate 32 is oppositely arranged with the upper clamp plate 31 and is fixed on the frame 1, also corresponds to be fixed on institute State upper clamp plate 31.

The main magnet steel 33 is fixed on the lower clamp plate 31.

The pair magnet steel 34 is set around the main magnet steel 33, and the pair magnet steel 34 is arranged at intervals shape with the main magnet steel 33 Into magnetic gap, the voice coil 22 is plugged and is suspended in the magnetic gap.

In present embodiment, the pair magnet steel 34 includes two and is located at the opposite sides of the main magnet steel 33 respectively.More Excellent, the pair magnet steel 34 is fixed on the side of the close lower clamp plate 32 of the upper clamp plate 31 by glued mode.

The upper clamp plate 31 is covered on the secondary magnet steel 34, and the secondary magnet steel 34 is made to be fixed on the upper clamp plate 31.

The lid of pole piece 36, which is set, is fixed on the main magnet steel 33, improves the magnetic conduction intensity of the main magnet steel 33, for preventing The loss of the magnetic line of force increases magnetic conduction efficiency.

The washer 5 is located at separate 32 side of lower clamp plate of the upper clamp plate 31, and the washer 5 is fixed on the basin Frame 1, the vibrating diaphragm 21 of the vibrational system 2 are fixedly supported to the frame 1 by the washer 5.The structure setting of the washer 5 Effective oscillation space of the vibrational system 2 is increased, so as to improve the acoustical behavior of the loud speaker 100.Certainly, because of institute It states frame 1 to be structure as a whole with the upper clamp plate 31, therefore, the washer 5 is it can be appreciated that be fixed on the upper clamp plate 31 On.

Elastic supporting member for supporting optical member 6 is used to flexibly support voice coil 22.Elastic supporting member for supporting optical member 6 is a pair, is divided into the opposite of main magnet steel 33 Both sides are different from the other both sides where secondary magnet steel 34.Each elastic supporting member for supporting optical member 6 includes the branch being fixedly connected with upper clamp plate 31 Supportting wall 61, the flexible PCB 62 that one end is connected with supporting walls 61 and the other end is fixedly connected with voice coil 22 and resilient support should The vibrating diaphragm 63 of voice coil 22.One end of the vibrating diaphragm 63 is fixed on supporting walls 61, and the other end is fixed on voice coil 22.

Above-described is only the embodiment of the utility model, it should be noted here that the ordinary skill for this field For personnel, under the premise of not departing from the utility model and creating design, improvement can also be made, but these belong to this practicality Novel protection domain.

Claims

1. a kind of loud speaker, including frame and the vibrational system and magnetic circuit system that are individually fixed in the frame, the vibration system System includes sound film and drives the voice coil of the sound film vibration sounding, the magnetic circuit system includes lower clamp plate, be fixedly installed on described in The main magnet steel of lower clamp plate is set around the main magnet steel setting and with the secondary magnet steel of the main magnet steel interval formation magnetic gap and lid In the upper clamp plate annular in shape of the secondary magnet steel, the lower clamp plate is fixed on the frame, which is characterized in that the frame is gold Belong to material to be made, the upper clamp plate is located at the side of the close vibrational system of the frame and is integrated into the frame Type structure, the pair magnet steel are fixed on the side of the close lower clamp plate of the upper clamp plate.

2. loud speaker according to claim 1, which is characterized in that the pair magnet steel is fixed on by glued mode on described Clamping plate.

3. loud speaker according to claim 1, which is characterized in that the pair magnet steel includes two and is located at the master respectively The opposite sides of magnet steel.

4. loud speaker according to claim 1, it is characterised in that：The loud speaker is further included positioned at bullet below the voice coil Property the support voice coil elastic supporting member for supporting optical member, the elastic supporting member for supporting optical member includes vibrating diaphragm, the flexible electrical being fixed in above the vibrating diaphragm Road plate and the supporting walls of support vibrating diaphragm and flexible PCB, the supporting walls are fixedly connected with upper clamp plate, the vibrating diaphragm and institute It states voice coil and passes through the flexible PCB and external circuit transmission telecommunications number.

5. loud speaker according to claim 1, which is characterized in that the frame is made of ferrous material.

6. loud speaker according to claim 1, which is characterized in that the loud speaker is further included positioned at the remote of the upper clamp plate Washer from the lower clamp plate side, the washer are fixed on the frame, and the vibrational system fixes branch by the washer It supports in the frame.