CN208638652U

CN208638652U - Loudspeaker

Info

Publication number: CN208638652U
Application number: CN201821260534.8U
Authority: CN
Inventors: 周家盛; 张龙
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2018-08-06
Filing date: 2018-08-06
Publication date: 2019-03-22
Anticipated expiration: 2028-08-06

Abstract

The utility model provides a kind of loudspeaker, including vibrational system, magnetic circuit system, and the shell for accommodating the vibrational system and the magnetic circuit system, the vibrational system includes the first vibrating diaphragm for being fixed on the shell, the voice coil of the first diaphragm oscillations sounding is driven below first vibrating diaphragm, it is located between first vibrating diaphragm and the voice coil and is connected to the flexible circuit board of external circuit, and the shell is fixed below the voice coil and flexibly supports the elastic supporting member for supporting optical member of the voice coil, the elastic supporting member for supporting optical member is the second vibrating diaphragm, the shell includes frame, the frame is equipped with multiple turnings, second vibrating diaphragm is set to the turning.Compared with the relevant technologies, loudspeaker provided by the utility model is five magnetic circuit systems, effectively promotion magnetic flux, enhances the sensitivity of loudspeaker.

Description

Loudspeaker

[technical field]

The utility model relates to electroacoustic switch technology field more particularly to a kind of loudspeakers.

[background technique]

In recent years, Information technology is grown rapidly, and the popularity rate of audio frequency apparatus is higher and higher, requirement of the people to audio frequency apparatus It is not limited only to the broadcasting of video/audio, more requires to propose more requirements, especially 5G epoch to the reliability of audio frequency apparatus It arrives, Technology of Mobile Multimedia also develops therewith, and many audio frequency apparatuses have a variety of amusement functions, as video playing, number are taken the photograph Picture, game, GPS navigation etc., as functional requirement is more and more, in component integration degree it is higher and higher, to product Quality also require to be increasingly stringenter.

In audio frequency apparatus, loudspeaker is a kind of common electronic component, is mainly used for the broadcasting of audio signal, knot Structure design directly affects audio playback quality.The loudspeaker of the relevant technologies include shell, be contained in the intracorporal magnetic circuit system of shell and Vibrational system.

In the loudspeaker of the relevant technologies, vibrational system is equipped with lower film, for flexibly supporting voice coil, but in order to avoid down Film, magnetic circuit system are only three magnetic circuit systems, and magnetic flux is low, influence the sensitivity of loudspeaker.

Therefore, a kind of new loudspeaker solution above-mentioned technical problem must be provided by having in fact.

[utility model content]

The loudspeaker of magnetic flux is promoted the purpose of this utility model is to provide membrane structure under a kind of change.

In order to achieve the above object, the utility model provides a kind of loudspeaker, including vibrational system, magnetic circuit system, with And the shell for accommodating the vibrational system and the magnetic circuit system, the vibrational system include be fixed on the shell One vibrating diaphragm, is located in first vibrating diaphragm at the voice coil that the first diaphragm oscillations sounding is driven below first vibrating diaphragm Between the voice coil and it is connected to the flexible circuit board of external circuit and is fixed on the shell simultaneously below the voice coil The elastic supporting member for supporting optical member of the voice coil is flexibly supported, the elastic supporting member for supporting optical member is the second vibrating diaphragm, and the shell includes frame, the basin Multiple turnings are provided with, second vibrating diaphragm is set to the turning.

Preferably, second vibrating diaphragm includes the inner edge connecting with the voice coil gluing, connect with the frame gluing The ring portion of outer rim and the connection inner edge and the outer rim.

Preferably, the magnetic circuit system includes the lower clamp plate connecting with the frame and on the lower clamp plate Multiple magnet steel, the lower clamp plate and the frame surround the receiving sky for accommodating the vibrational system and the magnetic circuit system jointly Between.

Preferably, the magnet steel includes the main magnet steel set on the lower clamp plate center, and the main magnet steel deviates from the lower folder The side of plate is equipped with pole piece, magnetic gap is formed between the main magnet steel, pole piece and the frame, the voice coil is plugged on the magnetic In gap.

Preferably, the magnet steel further includes being symmetrically set in the opposite two sides of the main magnet steel and setting with the main magnet steel interval The secondary magnet steel of two first set, the opposite both sides of the voice coil are plugged between the main magnet steel and the first secondary magnet steel.

Preferably, the magnet steel further includes being symmetrically set in the opposite other two sides of the main magnet steel and between the main magnet steel Every two second secondary magnet steel of setting, the opposite other both sides of the voice coil are plugged on the main magnet steel and the second secondary magnet steel Between.

Preferably, the magnetic circuit system further includes the upper folder of the side set on the described first secondary magnet steel away from the lower clamp plate Plate, the described first secondary magnet steel and the second secondary magnet steel are located between the upper clamp plate and the lower clamp plate, the upper clamp plate It is fixed with the frame.

Preferably, the upper clamp plate is annular, is set around the periphery of the pole piece.

Preferably, there are four second vibrating diaphragm is set, the frame is set there are four the turning.

Compared with the relevant technologies, flexible circuit board is located in the first vibrating diaphragm and voice coil by loudspeaker provided by the utility model Between, then by the way that elastic supporting member for supporting optical member is arranged as magnetic circuit system avoiding space, so that magnetic circuit system is five magnetic circuit systems, effectively promoted Magnetic flux enhances the sensitivity of loudspeaker.

[Detailed description of the invention]

It, below will be to required in embodiment description 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 Obtain other attached drawings, in which:

Fig. 1 is the perspective exploded view of loudspeaker provided by the utility model；

Fig. 2 is the three-dimensional assembling schematic diagram of loudspeaker shown in Fig. 1；

Fig. 3 is cross-sectional view of the loudspeaker shown in Fig. 2 along line A-A；

Fig. 4 is the rearview that loudspeaker shown in Fig. 1 removes magnetic circuit system；

Fig. 5 is the structural schematic diagram of elastic supporting member for supporting optical member in loudspeaker shown in Fig. 1；

Fig. 6 is the rearview that loudspeaker shown in Fig. 1 removes lower clamp plate and screen cloth.

[specific embodiment]

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 All other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, Fig. 1 is the perspective exploded view of loudspeaker provided by the utility model.The utility model provides A kind of loudspeaker, including shell 1, vibrational system 3, magnetic circuit system 5 and sound absorber 7, the shell 1 are described for accommodating Vibrational system 1 and the magnetic circuit system 3, the sound absorber 7 is covered on the outside of the shell 1, dust-proof for absorbing sound.

The shell 1 includes frame 11 and the cover board 13 being covered in the frame 11, and the frame 11 is equipped with multiple Turning 111, in the present embodiment, the frame 11 are square, and the turning 111 is four.

Please refer to Fig. 2 to Fig. 3, wherein Fig. 2 is the three-dimensional assembling schematic diagram of loudspeaker shown in Fig. 1；Fig. 3 is Fig. 2 institute Show cross-sectional view of the loudspeaker along line A-A.The vibrational system 3 includes the first vibrating diaphragm 31 for being fixed on the shell 1, set on described The top dome 33 of first vibrating diaphragm, 31 top, the voice coil that 31 vibration sounding of the first vibrating diaphragm is driven below first vibrating diaphragm 31 35, it is located between first vibrating diaphragm 31 and the voice coil 35 and is connected to the flexible circuit board 37 of external circuit and be set to It is fixed on the shell 1 below the voice coil 35 and flexibly supports the elastic supporting member for supporting optical member 39 of the voice coil 35.

Specifically, first vibrating diaphragm 31 is located between the frame 11 and the cover board 13, and the top dome 33 is used for Reinforce the intensity of first vibrating diaphragm 31, first vibrating diaphragm 31, flexible circuit board 37, voice coil 35, elastic supporting member for supporting optical member 39 are successively Connection.

Please refer to Fig. 4 and Fig. 5, Fig. 4 is the rearview that loudspeaker shown in Fig. 1 removes magnetic circuit system；Fig. 5 is Fig. 1 institute Show the structural schematic diagram of elastic supporting member for supporting optical member in loudspeaker.The elastic supporting member for supporting optical member 39 is the second vibrating diaphragm 391, second vibrating diaphragm 391 are set to the turning 111, and second vibrating diaphragm 391 includes and the glued inner edge 3911 connecting of the voice coil 35 and the basin The outer rim 3913 of the glued connection of frame 11 and the ring portion 3915 of the connection inner edge 3911 and the outer rim 3913.In this reality It applies in example, the quantity of second vibrating diaphragm 391 is corresponding with the quantity at the turning 111, is 4.Second vibrating diaphragm 391 is set In the turning 111 of the frame 11, the voice coil 35 is on the one hand flexibly supported, guarantees the stability of structure, when by external force It is not likely to produce and waves, on the other hand merge out certain space again for the magnetic circuit system 5.

Please refer to Fig. 3 and Fig. 6, Fig. 6 is the rearview that loudspeaker shown in Fig. 1 removes lower clamp plate and screen cloth.The magnetic Road system 5 is five magnetic circuit systems comprising the lower clamp plate 51 that connect with the frame 11 and on the lower clamp plate 51 Multiple magnet steel 53, the lower clamp plate 51, frame 11 and cover board 13 surround the receiving vibrational system 3 and magnetic circuit system 5 jointly Accommodating space.

The magnet steel 53 includes main magnet steel 531, pole piece 533, two first secondary magnet steel 535 and two second secondary magnet steel 537, wherein the main magnet steel 531 is set to 51 center of lower clamp plate, and the pole piece 533 is set to the main magnet steel 53 and deviates from institute The side of lower clamp plate 51 is stated, forms magnetic gap 539, the voice coil between the main magnet steel 531, pole piece 533 and the frame 11 35 are plugged in the magnetic gap 539；Two the described first secondary magnet steel 535 are symmetrically set in the opposite two sides of the main magnet steel 531 And be arranged with the main interval of magnet steel 531, the opposite both sides of the voice coil 35 are plugged on the main magnet steel 531 and first pair Between magnet steel 535；Two second secondary magnet steel 537 be symmetrically set in the opposite other two sides of the main magnet steel 531 and with it is described The setting of the main interval of magnet steel 531, the opposite other both sides of the voice coil 35 are plugged on the main magnet steel 531 and the described second secondary magnet steel Between 537.

In order to further ensure the stability of the magnetic circuit system 5, the magnetic circuit system 5 further includes being set to first pair Magnet steel 535 deviates from the upper clamp plate 55 of the side of the lower clamp plate 51, the described first secondary magnet steel 535 and the second secondary magnet steel 537 It is located between the upper clamp plate 55 and the lower clamp plate 51, the upper clamp plate 55 and the frame 11 are fixed；The upper clamp plate 55 is preferably annular, the periphery of the pole piece 533 is set around, so that the structure of the magnetic circuit system 5 is more compact.

Fig. 1 is please referred to, the sound absorber 7 includes Air Filter 71 and screen cloth 73, and the Air Filter 71 is covered on described On cover board 13, the screen cloth 73 is covered on the bottom of the frame 11, and the Air Filter 71 and screen cloth 73 are respectively from both direction The shell 1 is sealed, the foreign object on the outside of the loudspeaker is effectively prevent to enter the inside of the loudspeaker.

The flexible circuit board 37 is located between first vibrating diaphragm 31 and the voice coil 35 by the loudspeaker, then is led to It crosses and the elastic supporting member for supporting optical member 39 is set for 5 avoiding space of magnetic circuit system, so that the magnetic circuit system 5 is five magnetic circuit systems, Magnetic flux is effectively promoted, the sensitivity of the loudspeaker is enhanced.

Above-described is only the embodiments of the present invention, 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 it is practical Novel protection scope.

Claims

1. a kind of loudspeaker, including vibrational system, magnetic circuit system and for accommodating the vibrational system and the magnetic circuit system Shell, which is characterized in that the vibrational system include the first vibrating diaphragm for being fixed on the shell, be set to first vibrating diaphragm under Side drives the voice coil of the first diaphragm oscillations sounding, is located between first vibrating diaphragm and the voice coil and is connected to external electrical The flexible circuit board on road and the shell is fixed below the voice coil and flexibly supports the resilient support of the voice coil Part, the elastic supporting member for supporting optical member are the second vibrating diaphragm, and the shell includes frame, and the frame is equipped with multiple turnings, second vibration Film is set to the turning.

2. loudspeaker according to claim 1, which is characterized in that second vibrating diaphragm includes connecting with the voice coil gluing Inner edge, the outer rim that is connect with the frame gluing and the connection inner edge and the outer rim ring portion.

3. loudspeaker according to claim 1, which is characterized in that the magnetic circuit system includes connecting down with the frame Clamping plate and multiple magnet steel on the lower clamp plate, the lower clamp plate and the frame surround the receiving vibration jointly The accommodating space of system and the magnetic circuit system.

4. loudspeaker according to claim 3, which is characterized in that the magnet steel includes the master set on the lower clamp plate center Magnet steel, the main magnet steel are equipped with pole piece away from the side of the lower clamp plate, are formed between the main magnet steel, pole piece and the frame Magnetic gap, the voice coil are plugged in the magnetic gap.

5. loudspeaker according to claim 4, which is characterized in that the magnet steel further includes being symmetrically set in the main magnet steel phase Pair two sides and with the main magnet steel spaced two first secondary magnet steel, the opposite both sides of the voice coil are plugged on the master Between magnet steel and the first secondary magnet steel.

6. loudspeaker according to claim 5, which is characterized in that the magnet steel further includes being symmetrically set in the main magnet steel phase Pair other two sides and with the main magnet steel spaced two second secondary magnet steel, the opposite other both sides of the voice coil are planted Between the main magnet steel and the second secondary magnet steel.

7. loudspeaker according to claim 6, which is characterized in that the magnetic circuit system further includes being set to the described first secondary magnetic The upper clamp plate of side of the steel back from the lower clamp plate, the described first secondary magnet steel and the second secondary magnet steel are located in the upper clamp plate Between the lower clamp plate, the upper clamp plate is fixed with the frame.

8. loudspeaker according to claim 7, which is characterized in that the upper clamp plate is annular, is set around the pole piece Periphery.

9. loudspeaker according to claim 1, which is characterized in that there are four second vibrating diaphragm is set, the frame is equipped with Four turnings.