CN207968942U

CN207968942U - Loud speaker

Info

Publication number: CN207968942U
Application number: CN201820253989.0U
Authority: CN
Inventors: 李志文; 冯岱; 谢家树
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2018-02-11
Filing date: 2018-02-11
Publication date: 2018-10-12
Anticipated expiration: 2028-02-11

Abstract

The utility model provides a kind of loud speaker.The loud speaker includes frame, the upper cover assembled with frame, is contained in the vibrational system of frame and the magnetic circuit system for driving vibrational system, vibrational system includes the first vibrating diaphragm and drives the voice coil of the first diaphragm oscillations sounding, frame includes the wall extension for surrounding the frame side wall of receiving space and extending from two opposite frame side walls to voice coil direction, magnetic circuit system includes the upper clamp plate being fixedly connected with frame side wall, and the part that upper clamp plate corresponds to wall extension is contained within the scope of wall extension completely.Compared with the relevant technologies, the loud speaker of the utility model reserves big block space for the arm of force design of flexible PCB, conducive to optimizing.

Description

Loud speaker

【Technical field】

The utility model is related to electroacoustic conversion art more particularly to a kind of loud speakers for 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 loud speaker of the relevant technologies includes frame, is contained in the vibrational system of the frame and described for driving The magnetic circuit system of vibrational system, the vibrational system include vibrating diaphragm, the driving diaphragm oscillations sounding voice coil and with it is described Voice coil is electrically connected and is used to carry the flexible PCB of the voice coil, and the magnetic circuit system includes being immobilizated in the frame side wall The upper clamp plate of inner surface.

However, in the loud speaker of the relevant technologies, the inside that frame is stretched into for the fixed part of sealing of the upper clamp plate, The oscillation space for influencing the flexible PCB increases the design difficulty to the flexible PCB arm of force, while being also difficult to Frequency response is promoted by increasing magnetic circuit.

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 problems, provide a kind of conducive to the loud speaker optimized.

To achieve the goals above, the utility model technology provides a kind of loud speaker comprising frame and the frame The upper cover that assembles is contained in the vibrational system of the frame and the magnetic circuit system for driving the vibrational system, described to shake Dynamic system includes the voice coil of the first vibrating diaphragm and driving the first diaphragm oscillations sounding, and the frame includes surrounding receiving space Frame side wall and the wall extension extended from two opposite frame side walls to the voice coil direction, the magnetic circuit system include with The upper clamp plate that the frame side wall is fixedly connected, the part that the upper clamp plate corresponds to the wall extension are contained in the extension completely Within the scope of wall.

Preferably, the wall extension include the first wall extension extended from the frame side wall to the voice coil direction and The second wall extension extended from first wall extension to upper cover direction bending close to described voice coil one end, described first prolongs It stretches wall, second wall extension and the frame side wall and surrounds holding tank jointly.

Preferably, the upper clamp plate includes that the first main part of two relative spacings setting and two relative spacings are arranged Second main part, two first main parts and two second main parts, which are staggeredly connected, surrounds cyclic structure, and described the One main part is contained in the holding tank, and second main part is fixedly connected with the frame side wall.

Preferably, the loud speaker further includes the flexible circuit that the voice coil is electrically connected and be used to support with the voice coil Plate, the quantity of the flexible PCB is two pieces and is correspondingly arranged with first main part, described flexible PCB one end with The frame is fixedly connected, and the other end is fixedly connected with the one end of the voice coil far from the upper cover.

Preferably, the flexible PCB includes the fixed part being fixedly connected with first wall extension and the voice coil The elastic arm of the interconnecting piece and the connection fixed part and the interconnecting piece that are fixedly connected.

Preferably, the frame side wall includes being provided with two the first frame side walls of the wall extension and being respectively set Two the second frame side walls in the both ends of two the first frame side walls, the first frame side wall and second frame Side wall, which is fixedly connected, surrounds receiving space.

Preferably, the magnetic circuit system further include be immobilizated in magnetic bowl of the frame far from described upper cover one end, group is assigned in The main magnet steel in the magnetic bowl center, group assigned in the magnetic bowl and are set to the main magnet steel corresponds to the second frame side wall two The secondary magnet steel of side and the main pole core for being attached at the main magnet steel, second main part are matched and are pasted with the secondary magnet steel shape Invest the secondary magnet steel.

Preferably, the upper clamp plate and the frame integrated injection molding.

Compared with the relevant technologies, the part that the upper clamp plate of loud speaker provided by the utility model corresponds to the wall extension is complete It is contained within the scope of the wall extension, it, will not be to the oscillation space of the flexible PCB while ensure that sealing effect It has an impact, saves the inner space of the frame, reserve big quantity space for the arm of force design of the flexible PCB, be convenient for Optimize the arm of force design of the flexible PCB or promotes the frequency response of the loud speaker by increasing magnetic circuit.

【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 stereochemical structure decomposing schematic representation of loud speaker provided by the utility model；

Fig. 2 is the decomposition diagram of the frame and upper clamp plate of loud speaker provided by the utility model；

Fig. 3 is the assembling schematic diagram of frame shown in Fig. 2 and upper clamp plate；

Fig. 4 is that the flexible PCB of loud speaker provided by the utility model and the assembling of the stereochemical structure of voice coil and frame are shown It is intended to.

【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 1, the upper cover 3 assembled with the frame 1, receiving In the frame 1 and vibrational system 5 with vibrating diaphragm 51 and voice coil 53, for drive the magnetic circuit system 7 of the vibrational system 5 with And the flexible PCB 9 of the voice coil 53 is electrically connected and is used to support with the voice coil 53.

The frame 1 includes surrounding the frame side wall 11 of receiving space and from two opposite frame side walls 11 to institute State the wall extension 13 of 53 direction of voice coil extension.

The frame side wall 11 includes being provided with two the first frame side walls 111 of the wall extension 13 and being respectively set Two the second frame side walls 113 in the both ends of two the first frame side walls 111, the first frame side wall 111 and institute It states the second frame side wall 113 and is fixedly connected and surround receiving space.

The wall extension 13 include the first wall extension 131 from the frame side wall 11 to 53 direction of the voice coil that extend from And the second wall extension extended from first wall extension 131 to the bending of 3 direction of the upper cover close to 53 one end of the voice coil 133。

Specifically, first wall extension 131, second wall extension 133 and the frame side wall 11 surround jointly Holding tank 101.

The upper cover 3 is fixedly connected with the frame side wall 11, wherein the upper cover 3 includes being set in the upper cover 3 The Air Filter 33 for going out to go out described in acoustic aperture 31 and covering acoustic aperture 31 of centre.

It is described go out the sound that is used to send out the vibrating diaphragm 51 of acoustic aperture 31 export the loud speaker 100, the Air Filter 33 For protecting the loud speaker 100, prevents sundries from going out acoustic aperture 31 described in and enter in the loud speaker 100.

The vibrational system 5 includes the first vibrating diaphragm 51, is used to drive described first to shake positioned at first vibrating diaphragm, 51 lower section The voice coil 53 of 51 vibration sounding of film flexibly supports the voice coil 53 set on the voice coil 53 far from described first vibrating diaphragm, 51 one end Second vibrating diaphragm 55.

First vibrating diaphragm 51 is located between the frame 1 and the upper cover 3.Second vibrating diaphragm 55 and the flexibility Side of the circuit board 9 far from the upper cover 3 is fixedly connected, and second vibrating diaphragm 513 coordinates the flexible PCB 9, on the one hand On the other hand vibration for reinforcing first vibrating diaphragm 51 is used to prevent the polarization of the voice coil 53.

The magnetic circuit system 7 includes being immobilizated in magnetic bowl 71 of the frame 1 far from 3 one end of the upper cover, group assigned in described The main magnet steel 73 in 71 center of magnetic bowl, group, which are assigned in the magnetic bowl 71 and are set to the main magnet steel 73, corresponds to the second frame side wall It the secondary magnet steel 75 of 113 both sides, the main pole core 77 for being attached at the main magnet steel 73 and is fixedly connected with the frame side wall 11 Upper clamp plate 79.

The part that the upper clamp plate 79 corresponds to the wall extension 13 is contained in completely in 13 range of the wall extension.Specifically , the upper clamp plate 79 includes the second master of the first main part 791 that two relative spacings are arranged and two relative spacings settings Body portion 793, two first main parts 791 and two second main parts 793, which are staggeredly connected, surrounds cyclic structure, described First main part 791 is contained in the holding tank 101, and second main part 793 is fixedly connected with the frame side wall 11.

Specifically, second main part 793 matches with secondary 75 shape of magnet steel and is attached at the secondary magnet steel.

Specifically, the upper clamp plate 79 is integrated injection molding with the frame 1.

Fig. 4 is please referred to, the flexible PCB 9 is for the voice coil 53 to be connected to external circuitry.The flexibility Circuit board 9 includes the fixed part 91 being fixedly connected with first wall extension 131, the interconnecting piece being fixedly connected with the voice coil 53 93 and the connection fixed part 91 and the interconnecting piece 93 elastic arm 95.Wherein, the elastic arm 95 is bending structure.

Specifically, in the present embodiment, the quantity of the flexible PCB 9 be two pieces and with first main part 791 It is correspondingly arranged, 9 one end of the flexible PCB is fixedly connected with the frame 1, and the other end and the voice coil 53 are far from described One end of lid 3 is fixedly connected.Preferably, a flexible PCB 9 is electrically connected by electric wire with the voice coil 53.

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 comprising frame, the upper cover assembled with the frame, the vibrational system for being contained in the frame and Magnetic circuit system for driving the vibrational system, the vibrational system include the first vibrating diaphragm and driving first diaphragm oscillations The voice coil of sounding, which is characterized in that the frame includes surrounding the frame side wall of receiving space and from two opposite frame The wall extension that side wall extends to the voice coil direction, the magnetic circuit system include the upper folder being fixedly connected with the frame side wall Plate, the part that the upper clamp plate corresponds to the wall extension are contained in completely within the scope of the wall extension.

2. loud speaker according to claim 1, which is characterized in that the wall extension includes from the frame side wall to described The first wall extension and curved to the upper cover direction close to described voice coil one end from first wall extension that voice coil direction extends The second wall extension extended is rolled over, first wall extension, second wall extension and the frame side wall surround receiving jointly Slot.

3. loud speaker according to claim 2, which is characterized in that the upper clamp plate includes the of two articles of relative spacings setting One main part and the second main part of two relative spacings setting, two first main parts and two second main parts Staggeredly it is connected and surrounds cyclic structure, first main part is contained in the holding tank, second main part and the basin Frame side wall is fixedly connected.

4. loud speaker according to claim 3, which is characterized in that the loud speaker further includes being electrically connected simultaneously with the voice coil It is used to support the flexible PCB of the voice coil, the quantity of the flexible PCB is for two pieces and corresponding with first main part Setting, described flexible PCB one end are fixedly connected with the frame, the one end of the other end and the voice coil far from the upper cover It is fixedly connected.

5. loud speaker according to claim 4, which is characterized in that the flexible PCB includes and first wall extension The fixed part that is fixedly connected, the interconnecting piece being fixedly connected with the voice coil and the bullet for connecting the fixed part and the interconnecting piece Property arm.

6. loud speaker according to claim 3, which is characterized in that the frame side wall includes being provided with the wall extension Two the first frame side walls and be respectively arranged at two the first frame side walls both ends two the second frame side walls, institute It states the first frame side wall and is fixedly connected with the second frame side wall and surround receiving space.

7. loud speaker according to claim 6, which is characterized in that the magnetic circuit system further includes that be immobilizated in the frame remote Magnetic bowl, group from described upper cover one end are assigned in the main magnet steel in magnetic bowl center, group assigned in the magnetic bowl and are set to the master Magnet steel corresponds to the secondary magnet steel of the both sides of the second frame side wall and the main pole core for being attached at the main magnet steel, second master Body portion matches with the secondary magnet steel shape and is attached at the secondary magnet steel.

8. according to claim 1-7 any one of them loud speakers, which is characterized in that the upper clamp plate is integrally noted with the frame It is moulded into type.