CN209526871U - Microphone device - Google Patents

Microphone device Download PDF

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Publication number
CN209526871U
CN209526871U CN201822276951.8U CN201822276951U CN209526871U CN 209526871 U CN209526871 U CN 209526871U CN 201822276951 U CN201822276951 U CN 201822276951U CN 209526871 U CN209526871 U CN 209526871U
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China
Prior art keywords
frame
fixed
voice coil
vibrating diaphragm
microphone
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CN201822276951.8U
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Chinese (zh)
Inventor
宋威
张帆
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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Abstract

The utility model provides a kind of microphone device comprising frame, vibrational system and the magnetic circuit system with magnetic gap;Vibrational system includes the vibrating diaphragm for being fixed on frame, drive the voice coil of diaphragm oscillations sounding, it is fixed on frame and resilient support assemblies opposite and spaced with vibrating diaphragm and support frame, the voice coil includes the top surface for being connected to the vibrating diaphragm, the bottom surface and the connection bottom surface opposite with the top surface and the top surface and the inner sidewall and lateral wall that are oppositely arranged, the support frame includes extending with the spaced frame body of the voice coil and from the frame body to the voice coil direction and being connected to the skeleton interconnecting piece of the lateral wall, one end of the frame body is connect with the vibrating diaphragm, the other end of the frame body is connect with the resilient support assemblies.Compared with the relevant technologies, the microphone device stability of the utility model is good and acoustical behavior is excellent.

Description

Microphone device
[technical field]
The utility model relates to acoustic-electric field more particularly to a kind of microphone devices for applying to portable electronic product.
[background technique]
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 It is the music function of high-quality, therefore, the microphone device for playing sound is widely applied the intelligent slidings such as mobile phone till now Among dynamic equipment.
The microphone device of the relevant technologies includes frame, the vibrational system for being fixed on the frame and the driving vibration The magnetic circuit system of system vibration sounding;The vibrational system includes the vibrating diaphragm for being fixed on the frame, the driving diaphragm oscillations The voice coil of sounding and and interval opposite with the vibrating diaphragm are arranged and the voice coil are supported in the resilient support group of the frame Part.
However, the vibrating diaphragm and the resilient support assemblies are individually fixed in institute in the microphone device of the relevant technologies The opposite end of voice coil is stated, although the horizontal swing when resilient support assemblies can effectively prevent the voice coil vibrations, its The structure directly connecting with voice coil causes the design of the voice coil to be restricted, and the volume of the magnetic circuit system is also limited, from And it is limited that the acoustics of the microphone device is improved.
Therefore, it is really necessary to provide a kind of new microphone device solution above-mentioned technical problem.
[utility model content]
The purpose of this utility model is to provide the microphone devices that a kind of stability is good and acoustical behavior is excellent.
In order to achieve the above objectives, the utility model provides a kind of microphone device comprising frame and is individually fixed in described The vibrational system of frame and magnetic circuit system with magnetic gap;The vibrational system includes the vibrating diaphragm for being fixed on the frame, consolidates Due to the vibrating diaphragm and be inserted in the magnetic gap with drive the voice coil of the diaphragm oscillations sounding, be fixed on the frame and with The vibrating diaphragm is opposite and spaced resilient support assemblies and support frame;The voice coil includes being connected to the vibrating diaphragm Top surface, the bottom surface opposite with the top surface and the connection bottom surface and the top surface and the inner sidewall being oppositely arranged and outside Wall, the support frame include with the spaced frame body of the voice coil and from the frame body to the voice coil direction Extend and be connected to the skeleton interconnecting piece of the lateral wall, one end of the frame body is connect with the vibrating diaphragm, the skeleton The other end of ontology is connect with the resilient support assemblies.
Preferably, the support frame includes two, and the support frame is respectively arranged in the opposite sides of the voice coil, The rounded rectangular configuration of voice coil, the voice coil include four straight flanges and four fillets for being separately connected two neighboring straight flange, Each support frame is oppositely arranged with a straight flange of the voice coil and two fillets at the straight flange both ends.
Preferably, the support frame includes two, and two support frames are located at the outside of the voice coil, often The one skeleton interconnecting piece is connected to the lateral wall.
Preferably, side of side of the resilient support assemblies far from the vibrating diaphragm than the voice coil far from the vibrating diaphragm It is farther apart from the vibrating diaphragm.
Preferably, the resilient support assemblies are enclosed jointly sets to form a hollow region, and the voice coil is far from the vibrating diaphragm One end is located within the scope of the hollow region.
Preferably, the arc-shaped structure of the frame body.
Preferably, the resilient support assemblies include two and are located at the opposite sides of the voice coil, each described Resilient support assemblies include the auxiliary vibrating diaphragm far from the vibrating diaphragm side that the elastic component is fixed in elastic component and fitting, described Skeleton interconnecting piece is fixed on the side close to the vibrating diaphragm of the elastic component.
Preferably, the elastic component include the first fixed arm for being fixed on the frame, support be fixed on it is ipsilateral with it Second fixed arm of the skeleton interconnecting piece and extend from first fixed arm to second fixed arm and with described The elastic arm of two fixed arms connection;The auxiliary vibrating diaphragm includes the ring of the arc-shaped structure in cross section, by opposite the two of the ring The first connecting portion and second connecting portion that side each extends over, the first connecting portion are fixed on the separate institute of first fixed arm The side of support frame is stated, the second connecting portion is fixed on the side far from the support frame of second fixed arm, And it is oppositely arranged the ring with the elastic arm;The skeleton interconnecting piece is fixed on second fixed arm.
Preferably, the elastic component is flexible circuit board.
Preferably, the magnetic circuit system includes that magnetic yoke, the main magnet steel for being fixed on the magnetic yoke and being respectively separated is set to The main magnet steel opposite sides and two secondary magnet steel that the magnetic gap is formed with the main magnet steel, two secondary magnet steel are located at Between two resilient support assemblies.
Preferably, two secondary magnet steel are located at the long axis two sides of the voice coil, and two resilient support assemblies are located at The short axle two sides of the voice coil.
Preferably, the magnetic circuit system further includes upper clamp plate, and the upper clamp plate includes be fixed on the frame annular in shape Fixed ring and the pole piece that is extended by the fixed circumferential secondary magnet steel, the pole piece be stacked at two secondary magnet steel.
Compared with the relevant technologies, the support frame of the microphone device of the utility model includes setting with the voice coil interval The frame body set and the skeleton interconnecting piece for extending and being connected to the lateral wall from the frame body to the voice coil direction, One end of the frame body is connect with the vibrating diaphragm, and the other end of the frame body is connect with the resilient support assemblies. The structure makes the voice coil, the resilient support assemblies and the vibrating diaphragm be all connected to the support frame, wherein the bone Frame interconnecting piece is connected to the lateral wall, so that the height of the voice coil be made to be no longer limited by the vibrations of the resilient support assemblies Space, the whole height of the microphone device can design more frivolous;Simultaneously because the voice coil does not contact the elasticity Support component, will not influence the gap between the voice coil and magnetic circuit system, and magnetic circuit system can realize maximized more magnet steel three Magnetic structure finally effectively increases the acoustical behavior of the microphone device.
[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 schematic perspective view of the utility model microphone device;
Fig. 2 is the stereochemical structure decomposing schematic representation of the utility model microphone device;
Fig. 3 is the elevational schematic view of the part isometric structure of the utility model microphone device;
Fig. 4 is the cut-away view of the line A-A along Fig. 1;
Fig. 5 is the enlarged drawing of part shown in C in Fig. 4;
Fig. 6 is the part isometric Standard schematic diagram of the vibrational system of the utility model microphone device;
Fig. 7 is the enlarged drawing of part shown in B in Fig. 6;
Fig. 8 is the schematic perspective view of the support frame of the utility model microphone device;
Fig. 9 is the schematic perspective view of the resilient support assemblies of the utility model microphone device;
Figure 10 is the stereochemical structure decomposing schematic representation of the resilient support assemblies of the utility model microphone device.
[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.
It please join shown in Fig. 1-7, the utility model provides a kind of microphone device 100 comprising frame 1 is individually fixed in institute State the vibrational system 2 and magnetic circuit system 3 of frame 1.
The frame 1 is used to support the vibrational system 2 and the magnetic circuit system 3, and the magnetic circuit system 3 is for driving institute State 2 vibration sounding of vibrational system.
The vibrational system 2 includes the voice coil of the vibrating diaphragm 21 for being fixed on the frame 1, driving 21 vibration sounding of vibrating diaphragm 22, it is fixed on the frame 1 and opposite and spaced resilient support assemblies 23 and support frame 24 with the vibrating diaphragm 21.Institute Stating voice coil 22 includes being connected to the top surface 222 of the vibrating diaphragm 21, the bottom surface 221 opposite with the top surface 222 and described in connecting Bottom surface 221 and the top surface 222 and the inner sidewall 223 and lateral wall 224 being oppositely arranged.
The magnetic circuit system 3 has magnetic gap 36, and the voice coil 22 is inserted in the magnetic gap 36.
It please join shown in Fig. 8, in present embodiment, the support frame 24 includes two.Specifically, the support frame 24 Including extending with the spaced frame body 241 of the voice coil 22 and from the frame body 241 to 22 direction of voice coil And it is connected to the skeleton interconnecting piece 242 of the lateral wall 224, one end of the frame body 241 is connect with the vibrating diaphragm 21, institute The other end for stating frame body 241 is connect with the resilient support assemblies 23.The namely described skeleton interconnecting piece 242 is separately connected The resilient support assemblies 23 and the side wall 223;Wherein, the arc-shaped structure of the frame body.The voice coil 22 it is opposite The support frame 24, the rounded rectangular configuration of the voice coil 22 is respectively arranged in two sides, and the voice coil 22 includes four straight flanges With four fillets for being separately connected two neighboring straight flange, a straight flange of each support frame 24 and the voice coil 22 and The fillet of the two of the straight flange both ends is oppositely arranged.The structure is connected to the resilient support assemblies 23 and the vibrating diaphragm 21 The support frame 24, the height of the voice coil 22 are no longer limited by the oscillation space of the resilient support assemblies 23, the hair The whole height of acoustic device 100 can design more frivolous;Simultaneously because the voice coil 22 does not contact the resilient support group Part 23, will not influence the gap between the voice coil 22 and magnetic circuit, and magnetic circuit system 3 can realize maximized more three magnetic circuit knots of magnet steel Structure finally effectively increases the acoustical behavior of the microphone device 100.
The support frame 24 includes two and is located at the opposite sides of the voice coil 22, two support frames 24 are located at the outside of the voice coil 22.Present embodiment is only located at the voice coil 22 with two support frames 24 Outside, each skeleton interconnecting piece 242 is illustrated for being connected to the lateral wall 224.
Side of the resilient support assemblies 23 far from the vibrating diaphragm 21 than the voice coil 22 far from the vibrating diaphragm 21 one Vibrating diaphragm 21 described in lateral extent is farther.The resilient support assemblies 23 and the bottom end of the voice coil 22 be not concordant under the structure.
The resilient support assemblies 23 are enclosed jointly to be set to form a hollow region 10, and the voice coil 22 is far from the vibrating diaphragm 21 One end is located in 10 range of hollow region.So that the design of voice coil 22 is not by it between the resilient support assemblies 23 Space limitation, avoids influence of the resilient support assemblies 23 to magnetic circuit.
In present embodiment, the resilient support assemblies 23 include two and are located at opposite the two of the voice coil 22 The voice coil 22 is supported in the frame by two support frames 24 respectively by side, two resilient support assemblies 23 1.The setting of double spring support component 23 forms symmetrical structure, more stable to the support effect of the voice coil 22, and anti-voice coil 22 is horizontal To swinging, effect is more excellent.
It please join shown in Fig. 9-10, each resilient support assemblies 23 include that the bullet is fixed in elastic component 231 and fitting Property part 231 the auxiliary vibrating diaphragm 232 far from 21 side of vibrating diaphragm, the support frame 24 is fixed on the elastic component 231 Close to the side of the vibrating diaphragm 21, i.e., the described skeleton interconnecting piece 242 is fixed on the close vibrating diaphragm 21 of the elastic component 231 Side.The resilient support assemblies 23 are to weaken the vibrational system 2 waving in the operating condition.
Specifically, the elastic component 231 is flexible circuit board, the voice coil 22 is electrically connected with the elastic component 231.One side Face is used to provide the support to the voice coil 22, on the other hand introduces external electric signal for the voice coil 22, avoids by drawing Line is the problem of being easy broken string when the voice coil 22 introduces external electric signal, to improve its reliability.
The elastic component 231 include be fixed on the frame 1 the first fixed arm 2311, support be fixed on it is ipsilateral with it Second fixed arm 2312 of the skeleton interconnecting piece 242 and from first fixed arm 2311 to second fixed arm 2312 The elastic arm 2313 for extending and being connect with second fixed arm 2312;The auxiliary vibrating diaphragm 232 includes the arc-shaped structure in cross section Ring 2321, the first connecting portion 2322 and second connecting portion 2323 that are each extended over by the opposite sides of the ring 2321, The first connecting portion 2322 be fixed on first fixed arm 2311 far from the support frame 24 side, described second Interconnecting piece 2323 is fixed on the side far from the support frame 24 of second fixed arm 2312, and makes the ring 2321 It is oppositely arranged with the elastic arm 2313;The skeleton interconnecting piece 242 is fixed on second fixed arm 2312.Institute under this kind of structure Stating resilient support assemblies 23 does not influence magnetic gap, optimizes the design of magnetic circuit system, so that the acoustics of the microphone device 100 Performance is more excellent, while the setting of the resilient support assemblies 23 is convenient for the stability of the promotion vibrational system 2.
The magnetic circuit system 3 includes magnetic yoke 31, is fixed on the main magnet steel 32 of the magnetic yoke 31 and is respectively separated and be set to 32 opposite sides of main magnet steel and two secondary magnet steel 33 that the magnetic gap 36 is formed with the main magnet steel 32;Two pairs Magnet steel 33 is located between two resilient support assemblies 23.
Voice coil 22 described in present embodiment is in rectangular configuration with rounded corners, and two secondary magnet steel 33 are located at the sound The long axis two sides of circle 22, two resilient support assemblies 23 are located at the short axle two sides of the voice coil 22.At this point, the magnetic circuit system System 3 forms the magnetic structure of three magnet steel, and the more single magnetic steel magnetic circuit structure of driveability is stronger.
It should be noted that two secondary magnet steel 33 can also respectively with two 23 position phases of resilient support assemblies Together, the short axle two sides of the voice coil 22 are respectively positioned on, this is also feasible.
In order to further increase the performance of the magnetic circuit system 3, make the magnetic line of force quilt as much as possible of the magnetic circuit system 3 The voice coil 22 is cut, and to form bigger driving force magnetic circuit space, the magnetic circuit system 3 further includes upper clamp plate 34, it is described on Clamping plate 34 includes being fixed on the fixed ring 341 annular in shape of the frame 1 and being prolonged from the fixed ring 341 to the secondary magnet steel 33 The pole piece 342 stretched, the pole piece 342 are stacked at two secondary magnet steel 33.
Compared with the relevant technologies, the support frame of the microphone device of the utility model includes setting with the voice coil interval The frame body set and the skeleton interconnecting piece for extending and being connected to the lateral wall from the frame body to the voice coil direction, One end of the frame body is connect with the vibrating diaphragm, and the other end of the frame body is connect with the resilient support assemblies. The structure makes the voice coil, the resilient support assemblies and the vibrating diaphragm be all connected to the support frame, wherein the bone Frame interconnecting piece is connected to the lateral wall, so that the height of the voice coil be made to be no longer limited by the vibrations of the resilient support assemblies Space, the whole height of the microphone device can design more frivolous;Simultaneously because the voice coil does not contact the elasticity Support component, will not influence the gap between the voice coil and magnetic circuit system, and magnetic circuit system can realize maximized more magnet steel three Magnetic structure finally effectively increases the acoustical behavior of the microphone device.
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 (12)

1. a kind of microphone device comprising frame and be individually fixed in the vibrational system of the frame and the magnetic circuit with magnetic gap System;The vibrational system include the vibrating diaphragm for being fixed on the frame, be fixed on the vibrating diaphragm and be inserted in the magnetic gap with It drives the voice coil of the diaphragm oscillations sounding and is fixed on the frame and elasticity opposite and spaced with the vibrating diaphragm Support component, the voice coil include the top surface for being connected to the vibrating diaphragm, the bottom surface opposite with the top surface and the connection bottom Face and the top surface and the inner sidewall and lateral wall being oppositely arranged, which is characterized in that the vibrational system further includes support frame, The support frame includes prolonging with the spaced frame body of the voice coil and from the frame body to the voice coil direction The skeleton interconnecting piece of the lateral wall is stretched and is connected to, one end of the frame body is connect with the vibrating diaphragm, the skeleton sheet The other end of body is connect with the resilient support assemblies.
2. microphone device according to claim 1, which is characterized in that the support frame includes two, the voice coil Opposite sides is respectively arranged the support frame, the rounded rectangular configuration of voice coil, the voice coil include four straight flanges and It is separately connected four fillets of two neighboring straight flange, the straight flange and the straight flange of each support frame and the voice coil The fillet of the two of both ends is oppositely arranged.
3. microphone device according to claim 1, which is characterized in that the support frame includes two, two branch Support bone frame is located at the outside of the voice coil, and each skeleton interconnecting piece is connected to the lateral wall.
4. microphone device according to claim 1, which is characterized in that the resilient support assemblies far from the vibrating diaphragm one Side is more farther than vibrating diaphragm described in a lateral extent of the voice coil far from the vibrating diaphragm.
5. microphone device according to claim 1, which is characterized in that the resilient support assemblies are enclosed jointly to be set to be formed in one Empty region, the voice coil are located within the scope of the hollow region far from one end of the vibrating diaphragm.
6. microphone device according to claim 1, which is characterized in that the arc-shaped structure of frame body.
7. microphone device according to claim 2, which is characterized in that the resilient support assemblies include two and difference position In the opposite sides of the voice coil, each resilient support assemblies include that the remote of the elastic component is fixed in elastic component and fitting Auxiliary vibrating diaphragm from the vibrating diaphragm side, the skeleton interconnecting piece are fixed on the side close to the vibrating diaphragm of the elastic component.
8. microphone device according to claim 7, which is characterized in that the elastic component includes be fixed on the frame One fixed arm, support be fixed on the skeleton interconnecting piece ipsilateral with it the second fixed arm and from first fixed arm to The elastic arm that second fixed arm extends and connect with second fixed arm;The auxiliary vibrating diaphragm includes the arc-shaped knot in cross section The ring of structure, the first connecting portion and second connecting portion each extended over by the opposite sides of the ring, the first connecting portion It is fixed on the side far from the support frame of first fixed arm, it is fixed that the second connecting portion is fixed on described second The side far from the support frame of arm, and it is oppositely arranged the ring with the elastic arm;The skeleton interconnecting piece is fixed In second fixed arm.
9. microphone device according to claim 7, which is characterized in that the elastic component is flexible circuit board.
10. microphone device according to claim 8, which is characterized in that the magnetic circuit system include magnetic yoke, be fixed on it is described It the main magnet steel of magnetic yoke and is respectively separated and is set to the main magnet steel opposite sides and forms the magnetic gap with the main magnet steel Two secondary magnet steel, two secondary magnet steel are located between two resilient support assemblies.
11. microphone device according to claim 10, which is characterized in that two secondary magnet steel are located at the length of the voice coil Axis two sides, two resilient support assemblies are located at the short axle two sides of the voice coil.
12. microphone device according to claim 10, which is characterized in that the magnetic circuit system further includes upper clamp plate, described Upper clamp plate includes the pole piece for being fixed on the fixed ring annular in shape of the frame and being extended by the fixed circumferential secondary magnet steel, The pole piece is stacked at two secondary magnet steel.
CN201822276951.8U 2018-12-29 2018-12-29 Microphone device Active CN209526871U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822276951.8U CN209526871U (en) 2018-12-29 2018-12-29 Microphone device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822276951.8U CN209526871U (en) 2018-12-29 2018-12-29 Microphone device

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CN209526871U true CN209526871U (en) 2019-10-22

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111314828A (en) * 2020-02-25 2020-06-19 瑞声科技(新加坡)有限公司 Sound production device
CN111405431A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device and loudspeaker box thereof
CN111405426A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device
CN111510831A (en) * 2020-04-16 2020-08-07 歌尔股份有限公司 Sound producing device
CN111954131A (en) * 2020-06-30 2020-11-17 瑞声新能源发展(常州)有限公司科教城分公司 Flexible circuit board and speaker

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111405426B (en) * 2019-12-27 2021-06-15 瑞声科技(新加坡)有限公司 Sound production device
CN111405431A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device and loudspeaker box thereof
CN111405426A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device
CN111405431B (en) * 2019-12-27 2021-07-09 瑞声科技(新加坡)有限公司 Sound production device and loudspeaker box thereof
CN111314828A (en) * 2020-02-25 2020-06-19 瑞声科技(新加坡)有限公司 Sound production device
CN111510831A (en) * 2020-04-16 2020-08-07 歌尔股份有限公司 Sound producing device
CN111510831B (en) * 2020-04-16 2021-05-28 歌尔股份有限公司 Sound producing device
CN111954131A (en) * 2020-06-30 2020-11-17 瑞声新能源发展(常州)有限公司科教城分公司 Flexible circuit board and speaker

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