CN208924468U - Microphone device - Google Patents

Microphone device Download PDF

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Publication number
CN208924468U
CN208924468U CN201821622768.2U CN201821622768U CN208924468U CN 208924468 U CN208924468 U CN 208924468U CN 201821622768 U CN201821622768 U CN 201821622768U CN 208924468 U CN208924468 U CN 208924468U
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China
Prior art keywords
voice coil
microphone
fixed
magnet steel
vibrating diaphragm
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CN201821622768.2U
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Chinese (zh)
Inventor
令狐荣林
刘晓东
肖波
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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Priority to CN201821622768.2U priority Critical patent/CN208924468U/en
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Abstract

The utility model provides a kind of microphone device comprising frame and is individually fixed in the vibrational system of frame and the magnetic circuit system with magnetic gap;The resilient support assemblies that vibrational system includes the vibrating diaphragm for being fixed on frame, is inserted in magnetic gap to drive the voice coil of diaphragm oscillations sounding and be fixed on frame and be oppositely arranged with vibrating diaphragm, it is characterized in that, vibrating diaphragm has extended to form the first wall to voice coil close to a side of voice coil, and the end bending of the first wall has extended to form the second wall;Second wall is connected to voice coil by the first wall, the second wall connect with resilient support assemblies and with voice coil interval, the first wall is connected with the side of voice coil, the first wall and the second wall to by voice coil resilient suspension below vibrating diaphragm.Compared with the relevant technologies, the microphone device acoustical behavior of the utility model is good and high reliablity.

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.Microphone device for playing sound is widely applied Among the Intelligent mobile equipments such as present mobile phone.
The microphone device of the relevant technologies include frame and the vibrational system for being individually fixed in the frame and have magnetic The magnetic circuit system in gap;The vibrational system includes the vibrating diaphragm for being fixed on the frame, is fixed on the vibrating diaphragm and is inserted in institute It states magnetic gap and the frame is fixed on the voice coil for driving the diaphragm oscillations sounding and one end, the other end is fixed on the sound Enclose the resilient support assemblies far from described vibrating diaphragm one end.
However, the vibrating diaphragm and the resilient support assemblies are individually fixed in institute in microphone device described in 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]
Good and high reliablity the microphone device the purpose of this utility model is to provide a kind of acoustical behavior.
In order to achieve the above objectives, the utility model provides a kind of microphone device comprising frame and is individually fixed in institute State the vibrational system of frame and the magnetic circuit system with magnetic gap;The vibrational system include the vibrating diaphragm for being fixed on the frame, Be inserted in the magnetic gap with drive the voice coil of the diaphragm oscillations sounding and be fixed on the frame and with the vibrating diaphragm phase To the resilient support assemblies of setting;The vibrating diaphragm has extended to form the first wall, institute to the voice coil close to a side of the voice coil The end bending for stating the first wall has extended to form the second wall;Second wall is connected to the voice coil, institute by first wall State the second wall connect with the resilient support assemblies and with the voice coil interval, first wall is connected with the side of the voice coil Connect, first wall and second wall to by the voice coil resilient suspension below the vibrating diaphragm.
Preferably, the resilient support assemblies surround a hollow region, the one end of the voice coil far from the vibrating diaphragm jointly Within the scope of the hollow region.
Preferably, first wall and second wall respectively include two and are arranged at intervals at opposite the two of the voice coil Side.
Preferably, each second wall includes with the first segment at the voice coil interval and by opposite the two of the first segment The second segment that end extends to two first walls respectively, the first segment are connect with the resilient support assemblies, same described Two second segments of the second wall are connect with two first walls respectively.
Preferably, the rounded rectangular configuration of the voice coil, four first walls are located at four of the voice coil Fillet position.
Preferably, the vibrating diaphragm includes being fixed on the upper sound film of described frame one end and close to the magnetic circuit system side Top dome;The top dome includes top dome ontology, positioned at two first walls of the top dome ontology opposite sides and two institutes State the second wall and the two third walls horizontally extending by the top dome ontology opposite sides;Two first walls by What the top dome ontology was extended to form to the magnetic circuit system, each third wall is located at ipsilateral with it same described second Between two second segments of wall, the top dome ontology and the third wall are fixedly connected on the upper sound film.
Preferably, the top dome ontology is the structure in rectangle, two first walls and two the second wall difference Positioned at the short axle two sides of the top dome ontology, two third walls are located at the short axle two sides of the top dome ontology.
Preferably, the horizontal distance of each third wall to the top dome ontology is less than the first segment ipsilateral with it To the horizontal distance of the top dome ontology.
Preferably, the top dome ontology is an integral molding structure with first wall and second wall.
Preferably, the top dome ontology and first wall and second wall are separate structure.
Preferably, the top dome is made of any one material in magnesium alloy, carbon fiber, stainless steel or aluminium alloy.
Preferably, the resilient support assemblies include two and are located at the opposite sides of the voice coil, each described Resilient support assemblies include elastic component and the auxiliary vibrating diaphragm for being attached at the elastic component;The first segment is fixedly connected on described Side of the elastic component far from the auxiliary vibrating diaphragm.
Preferably, the elastic component includes the first fixed arm for being fixed on the frame, same institute is fixed in support respectively State two the second fixed arms of two second segments of the second wall and from first fixed arm respectively to two described Two elastic arms that two fixed arms extend and form a fixed connection;The auxiliary vibrating diaphragm include the ring of the arc-shaped structure in cross section with And the first connecting portion and second connecting portion each extended over by the opposite sides of the ring, the first connecting portion are fixed on institute The first fixed arm is stated, the second connecting portion is fixed on the first segment.
Preferably, two resilient support assemblies are connected with the voice coil respectively;Four of two elastic components Second fixed arm is individually fixed in the bottom surface of the voice coil.
Preferably, two resilient support assemblies are arranged with the voice coil interval respectively.
Preferably, the elastic component is the flexible circuit board being electrically connected with the voice coil.
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 the two first secondary magnet steel that the magnetic gap is formed with the main magnet steel;Each described first is secondary Magnet steel is between the first segment and the voice coil ipsilateral with it.
Preferably, the voice coil is rounded rectangular configuration;Two resilient support assemblies are located at the voice coil The two sides of short axle, two the described first secondary magnet steel are located at the two sides of the short axle of the voice coil.
Preferably, the magnetic circuit system further includes being respectively separated two that are set to the other opposite sides of main magnet steel Second mate's magnet steel;Two the described second secondary magnet steel are located between two resilient support assemblies.
Preferably, the voice coil is rounded rectangular configuration;Two resilient support assemblies are located at the voice coil The two sides of short axle, two the described first secondary magnet steel are located at the two sides of the short axle of the voice coil, and two the described second secondary magnet steel are located at The two sides of the long axis of the voice coil.
Preferably, the magnetic circuit system further includes the main pole core for being stacked at the main magnet steel, is stacked at described in two respectively Two the first consequent pole cores of the second secondary magnet steel and the upper clamp plate for being embedded at the frame, the upper clamp plate includes being fixed on frame Fixed ring annular in shape and two the second consequent pole cores being extended respectively to the described second secondary magnet steel from the fixed ring, two institutes It states consequent pole core and is stacked at two the described second secondary magnet steel respectively.
Compared with the relevant technologies, in the microphone device of the utility model, the vibrating diaphragm is close to a side of the voice coil to institute It states voice coil and has extended to form the first wall, the end bending of first wall has extended to form the second wall;Second wall passes through institute State the first wall and be connected to the voice coil, second wall connect with the resilient support assemblies and with the voice coil interval, it is described First wall is connected with the side of the voice coil, first wall and second wall to by the voice coil resilient suspension in institute It states below vibrating diaphragm, in the structure, the voice coil forms fixation by first wall and the vibrating diaphragm, on the one hand which realizes The inhibition of horizontal swing when to the voice coil vibrations improves its reliability;Meanwhile the first wall fixation is glued at the sound The side of circle, the structure design of the structure release voice coil, voice coil height are no longer limited by the resilient support assemblies, send out Acoustic device whole height can design more frivolous.In addition, the setting of two second walls by the top dome, described Vibrating diaphragm and the voice coil indirect connection are assisted, i.e., the described auxiliary vibrating diaphragm passes through between second wall and voice coil formation in succession It connects, so that forming certain bit space that allows between the auxiliary vibrating diaphragm and the voice coil, this allows bit space that magnet steel can be set, and disappears In addition to the limitation of the design to magnetic circuit system, magnetic circuit system can realize maximization without resilient support assemblies of stepping down, magnetic circuit system Three magnetic circuit of more magnet steel or five magnetic structures, effectively increase 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 part isometric structural exploded view of the utility model microphone device;
Fig. 3 is the top dome schematic perspective view of the utility model microphone device;
Fig. 4 is the cut-away view of line B-B in Fig. 3;
Fig. 5 is the resilient support assemblies stereochemical structure exploded view of the utility model microphone device;
Fig. 6 is the top dome schematic perspective view of the utility model microphone device;
Fig. 7 is top dome, the schematic perspective view of resilient support assemblies and voice coil of the utility model microphone device;
Fig. 8 is the cut-away view of the line A-A along Fig. 1;
Fig. 9 is the enlarged drawing of part shown in B in Fig. 8.
[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.
Refering to Figure 1, the utility model provides a kind of microphone device 100 comprising frame 1, vibrational system 2 and Magnetic circuit system 3.
The frame 1 supports the vibrational system 2 and the magnetic circuit system 3 for fixed.
It please refers to shown in Fig. 2-4, the vibrational system 2 includes the vibrating diaphragm 21 for being fixed on the frame 1, the driving vibrating diaphragm The voice coil 22 of 21 vibration soundings and the resilient support assemblies 23 for being fixed on the frame 1 and being oppositely arranged with the vibrating diaphragm 21.
The magnetic circuit system 3 has magnetic gap 30, and the voice coil 22 is inserted in the magnetic gap 30.
In present embodiment, the vibrating diaphragm 21 has extended to form to the voice coil 21 close to a side of the voice coil 22 The end bending of one wall 42, first wall 42 has extended to form the second wall 43;Second wall 43 passes through first wall 42 It is connected to the voice coil 22, second wall 43 connect with the resilient support assemblies 23 and is spaced with the voice coil 22, described First wall 42 is connected with the side of the voice coil 22;Further, first wall 42 and second wall 43 respectively include Two and be located at the voice coil 22 opposite sides, each second wall 43 include with the voice coil 22 interval first segment 431 and the second segment 432 that is extended respectively to two first walls 42 from the opposite end of the first segment 431, described first Section 431 is connect with the resilient support assemblies 23, two second segments 432 of same second wall 43 respectively with two institutes State the connection of the first wall 42, first wall 42 and second wall 43 to by 22 resilient suspension of voice coil in the vibrating diaphragm 21 lower sections.
Further, the vibrating diaphragm 21 includes being fixed on the upper sound film 211 of described 1 one end of frame and close to the magnetic circuit The top dome 4 of 3 side of system;The top dome 4 includes top dome ontology 41, positioned at described in two of 41 opposite sides of top dome ontology First wall 42 and two second walls 43 and by horizontally extending two of 41 opposite sides of top dome ontology Three walls 44;What two first walls 42 were extended to form from the top dome ontology 41 to the magnetic circuit system 3, each third Wall 44 is located between two second segments 432 of same second wall 43 ipsilateral with it, the top dome ontology 41 and institute It states third wall 44 and is fixedly connected on the upper sound film 211.
Preferably, the top dome ontology 41 is the structure in rectangle, two first walls 42 and two second walls 43 are located at the short axle two sides of the top dome ontology 41, and two third walls 44 are located at the top dome ontology 41 Short axle two sides;More preferably, the extending direction of the top dome ontology 41 is horizontal direction, and each third wall 44 is along the top dome The horizontal distance of the long axis direction of ontology 41 to the top dome ontology 41 is d1, and each first segment 431 is along the top dome sheet The horizontal distance of the long axis direction of body 41 to the top dome ontology 41 is d2, and each third wall 44 arrives the top dome ontology 41 horizontal distance d1 is less than the horizontal distance d2 that the first segment 431 ipsilateral with it arrives the top dome ontology 41.
Preferably, the top dome ontology 41 and first wall 42 and second wall 43 can be with integral structures, can also be with For separate structure;For example, in the present embodiment, the top dome ontology 41 is one with first wall 42 and second wall 43 Forming structure, so that the molding of the top dome 4 is more reliable;More preferably, the top dome 4 is magnesium alloy, carbon fiber, stainless steel Or any one material in aluminium alloy is made, certainly, the material of the top dome 4 is without being limited thereto, as long as low-density, high rigidity And easily molded material can be used as the material that the top dome 4 is made.
Please in combination with shown in Fig. 5-7, in present embodiment, the resilient support assemblies 23 surround a hollow region jointly 230, the voice coil 22 is located in 230 range of hollow region far from one end of the vibrating diaphragm 21;Preferably, the elasticity branch Support component 23 includes two and is located at the opposite sides of the voice coil 22, and two resilient support assemblies 23 surround institute State hollow region 230.
Specifically, each resilient support assemblies 23 are including elastic component 231 and are attached at the auxiliary of the elastic component 231 Help vibrating diaphragm 232;The first segment 431 is fixedly connected on side of the elastic component 231 far from the auxiliary vibrating diaphragm 232.
The elastic component 231 includes the first fixed arm 2311 for being fixed on the frame 1, same institute is fixed in support respectively It states two the second fixed arms 2312 of two second segments 432 of the second wall 43 and is divided by first fixed arm 2311 Two elastic arms 2313 for not extending and forming a fixed connection to two second fixed arms 2312.Two second fixed arms 2312 with being fixedly connected for first fixed arm 2311 can be to be directly connected to, or be indirectly connected with, for example, at this In embodiment, each second fixed arm 2312 is arranged with the frame 1 interval and passes through the elastic arm ipsilateral with it 2313 are directly connected to first fixed arm 2311 formation;Certainly, two second fixed arms 2312 are individually fixed in institute Frame 1 is stated, each second fixed arm 2312 passes through the elastic arm 2313 and first fixed arm 2311 ipsilateral with it It is also feasible that formation, which is indirectly connected with,.
The auxiliary vibrating diaphragm 232 includes the ring 2321 of the arc-shaped structure in cross section, by opposite the two of the ring 2321 The first connecting portion 2322 and second connecting portion 2323 that side each extends over;It is solid that the first connecting portion 2322 is fixed on described first Fixed arm 2311, the second connecting portion 2323 are fixed on the first segment 431.
The resilient support assemblies 23 are used to improve the reliability of the vibration of the vibrational system 2.In the present embodiment, pass through The setting of two resilient support assemblies 23, forms the symmetrical structure of double spring support component, so as to the voice coil 22 Support effect it is more stable, be better protected from the horizontal swing of the voice coil 22, the vibration for improving the vibrational system 2 can It is higher by property, so that the reliability of the microphone device 100 is higher.
Preferably, the elastic component 231 is flexible circuit board, and the voice coil 22 is electrically connected with the elastic component 231, one Aspect can be used for providing the support to the voice coil 22, on the other hand introduces external electric signal for the voice coil 22, avoids logical Crossing lead is the problem of being easy broken string when the voice coil 22 introduces external electric signal, to improve its reliability.
Voice coil 22 described in above structure is formed with the vibrating diaphragm 21 by first wall 42 and is fixed, and the structure is on the one hand logical The effective inhibition for crossing the horizontal swing that first wall 42 is realized to the voice coil 22, improves the reliable of the microphone device 100 Property and stability;Meanwhile the first wall 42 fixed side for being glued at the voice coil 22, the structure release voice coil 22 Structure design, position can float up and down along the direction of vibration of the vibrating diaphragm 21, and voice coil height is no longer limited by the elasticity Support component 23, microphone device whole height can design more frivolous.
In the present embodiment, it is illustrated by taking the rounded rectangular configuration of the voice coil 22 as an example, four described first Wall 42 is located at four fillet positions of the voice coil 22.So that the top dome 4 is more reliably glued at the voice coil 22, The horizontal swing of the voice coil 22 is more efficiently inhibited, to further increase the reliability that the vibrational system 2 is vibrated.
In addition, in above structure, by the setting of two second walls 43 of the top dome 4, the auxiliary vibrating diaphragm 232 With 22 indirect connection of voice coil, i.e., the described auxiliary vibrating diaphragm 232 is formed indirectly by second wall 43 with the voice coil 22 Connection, so that forming certain bit space that allows between the auxiliary vibrating diaphragm 232 and the voice coil 22, this allows bit space can be set Magnet steel, to release the structure design of the magnetic circuit system 3, the resilient support assemblies 23 are not direct with 22 bottom glue of voice coil It closes, effectively avoids the interference of magnetic circuit system 3 Yu the resilient support assemblies 23, magnetic circuit system 3 is without the elasticity branch of stepping down Support component 23, magnetic circuit system can realize maximization structure, effectively increase the acoustical behavior of the microphone device 100.
It is noted that the resilient support assemblies 23 and the voice coil 22 be spaced apart from each other setting or interconnection 's;And in present embodiment, two resilient support assemblies 23 are connected with the voice coil 22 respectively;Two elastic components Four of 23, second fixed arm 2312 is individually fixed in the bottom surface of the voice coil 22, and second fixed arm 2312 is described Voice coil 22 provides bottom support, improves the vibration reliability of the voice coil 22, thus improve improve the microphone device 100 can By property.
Please refer to shown in Fig. 2 and Fig. 7-9, the magnetic circuit system 3 includes magnetic yoke 31, is fixed on the magnetic yoke 31 It main magnet steel 32 and is respectively separated and is set to 32 opposite sides of main magnet steel and forms the magnetic gap with the main magnet steel 32 The secondary magnet steel 33 of two first of 30;Each described first secondary magnet steel 33 is located at the first segment 431 and the sound ipsilateral with it Between circle 22, i.e., each described first secondary magnet steel 33 is contained in the resilient support assemblies 23 ipsilateral with it and the voice coil 22 In the accommodating space of formation.At this point, the tool of the magnetic circuit system 3 is there are three magnet steel, it can be according to optimization design in practical application Demand, three magnetic steel magnetic circuits can be set by the magnetic circuit system 3, can also be further optimized for the magnetic circuit system 3 Five magnetic steel magnetic circuits.
When the magnetic circuit system 3 is three magnetic steel magnetic circuit, illustrate by taking the rounded rectangular configuration of the voice coil 22 as an example, two A resilient support assemblies 23 are located at the two sides of the short axle of the voice coil 22, and two the described first secondary magnet steel 33 are located at the sound The two sides of the short axle of circle 22, and each described first secondary magnet steel 33 is located at the first segment 431 and the voice coil ipsilateral with it Between 22, i.e., each described first secondary magnet steel 33 is contained in the resilient support assemblies 23 and voice coil 22 shape ipsilateral with it At accommodating space in.At this point, the three magnetic steel magnetic circuits structure makes the driveability of the magnetic circuit system 3 excellent, so that institute The acoustical behavior for stating microphone device 100 is good.
When the magnetic circuit system 3 is five magnetic steel magnetic circuit, for example, in the present embodiment, in order to further efficiently use Space, reinforces the volume of the magnetic circuit system 3, and the magnetic circuit system 3 further includes being respectively separated to be set to the main magnet steel 32 separately The secondary magnet steel 34 of two second of outer opposite sides;Two second secondary magnet steel 34 be located at two resilient support assemblies 23 it Between.
Further, illustrate by taking the rounded rectangular configuration of the voice coil as an example, two resilient support assemblies 23 In the two sides of the short axle of the voice coil 22, two the described first secondary magnet steel 33 are located at the two sides of the short axle of the voice coil 22, and every One described first secondary magnet steel 33 is between the first segment 431 and the voice coil 22 ipsilateral with it, i.e., and each described first In the accommodating space that secondary magnet steel 33 is contained in the resilient support assemblies 23 ipsilateral with it and the voice coil 22 is formed, two institutes State the two sides that the second secondary magnet steel 34 is located at the long axis of the voice coil 22.At this point, the driveability of the five magnetic steel magnetic circuits structure is stronger, So that the vibrating effect of the microphone device 100 is more excellent.
In order to further improve the performance of magnetic circuit system 3, keep the magnetic line of force of the magnetic circuit system 3 as much as possible by institute The cutting of voice coil 22 is stated, to form bigger driving force, the magnetic circuit system 3 further includes the main pole core for being stacked at the main magnet steel 32 35, it is stacked at two first consequent pole cores 36 of two the described second secondary magnet steel 34 respectively and is embedded at the upper folder of the frame 1 Plate 37, the upper clamp plate 37 include being fixed on the fixed ring 371 annular in shape of frame 1 and from the fixed ring 371 respectively to institute Two the second consequent pole cores 372 that the second secondary magnet steel 34 extends are stated, two consequent pole cores 372 are stacked at two described second respectively Secondary magnet steel 372.
Compared with the relevant technologies, in the microphone device of the utility model, the vibrating diaphragm is close to a side of the voice coil to institute It states voice coil and has extended to form the first wall, the end bending of first wall has extended to form the second wall;Second wall passes through institute State the first wall and be connected to the voice coil, second wall connect with the resilient support assemblies and with the voice coil interval, it is described First wall is connected with the side of the voice coil, first wall and second wall to by the voice coil resilient suspension in institute It states below vibrating diaphragm, in the structure, the voice coil forms fixation by first wall and the vibrating diaphragm, on the one hand which realizes The inhibition of horizontal swing when to the voice coil vibrations improves its reliability;Meanwhile the first wall fixation is glued at the sound The side of circle, the structure design of the structure release voice coil, voice coil height are no longer limited by the resilient support assemblies, send out Acoustic device whole height can design more frivolous.In addition, the setting of two second walls by the top dome, described Vibrating diaphragm and the voice coil indirect connection are assisted, i.e., the described auxiliary vibrating diaphragm passes through between second wall and voice coil formation in succession It connects, so that forming certain bit space that allows between the auxiliary vibrating diaphragm and the voice coil, this allows bit space that magnet steel can be set, and disappears In addition to the limitation of the design to magnetic circuit system, magnetic circuit system can realize maximization without resilient support assemblies of stepping down, magnetic circuit system Three magnetic circuit of more magnet steel or five magnetic structures, effectively increase 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 (21)

1. a kind of microphone device comprising frame and be individually fixed in the vibrational system of the frame and the magnetic with magnetic gap Road system;The vibrational system includes the vibrating diaphragm for being fixed on the frame, is inserted in the magnetic gap to drive the vibrating diaphragm to shake The voice coil of dynamic sounding and the resilient support assemblies for being fixed on the frame and being oppositely arranged with the vibrating diaphragm, which is characterized in that The vibrating diaphragm has extended to form the first wall to the voice coil close to a side of the voice coil, and the end of first wall, which is bent, to be extended It is formed with the second wall;Second wall is connected to the voice coil, second wall and the resilient support by first wall Component connection and with the voice coil interval, first wall is connected with the side of the voice coil, first wall and described the Two walls to by the voice coil resilient suspension below the vibrating diaphragm.
2. microphone device according to claim 1, which is characterized in that the resilient support assemblies surround a hollow area jointly Domain, the voice coil are located within the scope of the hollow region far from one end of the vibrating diaphragm.
3. microphone device according to claim 2, which is characterized in that first wall and second wall respectively include two Opposite sides that is a and being arranged at intervals at the voice coil.
4. microphone device according to claim 3, which is characterized in that each second wall includes and the voice coil interval First segment and the second segment that is extended respectively to two first walls from the opposite end of the first segment, the first segment with The resilient support assemblies connection, two second segments of same second wall are connect with two first walls respectively.
5. microphone device according to claim 4, which is characterized in that the rounded rectangular configuration of the voice coil, four institutes State four fillet positions that the first wall is located at the voice coil.
6. microphone device according to claim 4, which is characterized in that the vibrating diaphragm includes being fixed on described frame one end The top dome of upper sound film and the close magnetic circuit system side;The top dome includes top dome ontology, is located at the top dome ontology phase Two first walls and two second walls to two sides and prolonged in the horizontal direction by the top dome ontology opposite sides The two third walls stretched;What two first walls were extended to form from the top dome ontology to the magnetic circuit system, it is each described Third wall is located between two second segments of same second wall ipsilateral with it, the top dome ontology and the third Wall is fixedly connected on the upper sound film.
7. microphone device according to claim 6, which is characterized in that the top dome ontology be in rectangle structure, two First wall and two second walls are located at the short axle two sides of the top dome ontology, and two third walls distinguish position In the short axle two sides of the top dome ontology.
8. microphone device according to claim 7, which is characterized in that the water of each third wall to the top dome ontology Flat distance is less than the first segment ipsilateral with it to the horizontal distance of the top dome ontology.
9. microphone device according to claim 6, which is characterized in that the top dome ontology and first wall and described the Two walls are an integral molding structure.
10. microphone device according to claim 6, which is characterized in that the top dome ontology and first wall and described Second wall is separate structure.
11. microphone device according to claim 9 or 10, which is characterized in that the top dome be magnesium alloy, carbon fiber, Any one material in stainless steel or aluminium alloy is made.
12. microphone device according to claim 6, which is characterized in that the resilient support assemblies include two and difference Positioned at the opposite sides of the voice coil, each resilient support assemblies include elastic component and are attached at the auxiliary of the elastic component Help vibrating diaphragm;The first segment is fixedly connected on side of the elastic component far from the auxiliary vibrating diaphragm.
13. microphone device according to claim 12, which is characterized in that the elastic component includes being fixed on the frame First fixed arm, respectively support be fixed on same second wall two second segments two the second fixed arms and by Two elastic arms that first fixed arm extends and forms a fixed connection to two second fixed arms respectively;The auxiliary vibration Film includes the ring of the arc-shaped structure in cross section and the first connecting portion and that is each extended over by the opposite sides of the ring Two interconnecting pieces, the first connecting portion are fixed on first fixed arm, and the second connecting portion is fixed on the first segment.
14. microphone device according to claim 13, which is characterized in that two resilient support assemblies respectively with it is described Voice coil is connected;Four of two elastic components, second fixed arm is individually fixed in the bottom surface of the voice coil.
15. microphone device according to claim 13, which is characterized in that two resilient support assemblies respectively with it is described The setting of voice coil interval.
16. microphone device according to claim 13, which is characterized in that the elastic component is to be electrically connected with the voice coil Flexible circuit board.
17. microphone device according to claim 13, which is characterized in that the magnetic circuit system includes magnetic yoke, is fixed on institute It states the main magnet steel of magnetic yoke and is respectively separated and be set to the main magnet steel opposite sides and formed between the magnetic with the main magnet steel The secondary magnet steel of two first of gap;Each described first secondary magnet steel is between the first segment and the voice coil ipsilateral with it.
18. microphone device according to claim 17, which is characterized in that the voice coil is rounded rectangular configuration;Two A resilient support assemblies are located at the two sides of the short axle of the voice coil, and two the described first secondary magnet steel are located at the short of the voice coil The two sides of axis.
19. microphone device according to claim 17, which is characterized in that the magnetic circuit system further includes being respectively separated setting In two second secondary magnet steel of the main other opposite sides of magnet steel;Two the described second secondary magnet steel are located at two elasticity branch Between support component.
20. microphone device according to claim 19, which is characterized in that the voice coil is rounded rectangular configuration;Two A resilient support assemblies are located at the two sides of the short axle of the voice coil, and two the described first secondary magnet steel are located at the short of the voice coil The two sides of axis, two the described second secondary magnet steel are located at the two sides of the long axis of the voice coil.
21. microphone device according to claim 20, which is characterized in that the magnetic circuit system further includes being stacked at the master The main pole core of magnet steel, two the first consequent pole cores for being stacked at two second secondary magnet steel respectively and it is embedded at the frame Upper clamp plate, the upper clamp plate include being fixed on the fixed ring annular in shape of frame and from the fixed ring respectively to second pair Two the second consequent pole cores that magnet steel extends, two consequent pole cores are stacked at two the described second secondary magnet steel respectively.
CN201821622768.2U 2018-09-30 2018-09-30 Microphone device Active CN208924468U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111372177A (en) * 2019-11-21 2020-07-03 瑞声科技(新加坡)有限公司 Loudspeaker
WO2020140586A1 (en) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 Sound generation device
CN111405421A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020140586A1 (en) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 Sound generation device
CN111372177A (en) * 2019-11-21 2020-07-03 瑞声科技(新加坡)有限公司 Loudspeaker
CN111405421A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device

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