CN208386919U

CN208386919U - Microphone device and portable terminal

Info

Publication number: CN208386919U
Application number: CN201820987932.3U
Authority: CN
Inventors: 王兴龙; 葛连山; 刘春发
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2018-06-25
Filing date: 2018-06-25
Publication date: 2019-01-15
Anticipated expiration: 2028-06-25

Abstract

The utility model discloses a kind of microphone device and portable terminal, wherein, microphone device includes vibrational system and magnetic circuit system, vibrational system and magnetic circuit system are mounted on shell, and shell includes the first shell and second shell being connected and fixed, and vibrational system includes the first vibrating diaphragm, magnetic circuit system includes conductive magnetic yoke, wherein, the first vibrating diaphragm is installed in the one side of separate second shell of first shell, and conductive magnetic yoke is integrated with second shell injection molding.The microphone device of the utility model, shell is split as two housing sections, by the way that conductive magnetic yoke injection molding is fixed on the second housing, so that conductive magnetic yoke and second shell become a component being wholely set, so as to reduce the assembling process of conductive magnetic yoke and shell, the assembly efficiency and bonding strength of microphone device can be improved, and bigger space can be provided for magnetic circuit system, promote properties of product.

Description

Microphone device and portable terminal

Technical field

The utility model relates to electroacoustic techniques field, in particular to a kind of microphone device and portable terminal.

Background technique

Currently, important component of the microphone device as the terminal with audio playing function, is widely used.It is some Terminal, especially portable terminal, the installation space as mobile phone, tablet computer, earphone can provide for microphone device is very limited, Therefore, the volume of microphone device also becomes smaller and smaller.

For existing microphone device, shell uses an independent plastic parts, and conductive magnetic yoke is usually to be bonded on the shell , but due to the small volume of microphone device, conductive magnetic yoke, which is bonded in the process on shell, becomes cumbersome, thus can be to hair The assembly of acoustic device causes great inconvenience, and magnetic circuit space will receive certain limitation.

Utility model content

The main purpose of the utility model is to propose a kind of microphone device, it is intended to solve existing microphone device, magnetic conduction The technical problem of yoke and shell assembly inconvenience.

To achieve the above object, the utility model proposes a kind of microphone device, including vibrational system and magnetic circuit system, institute It states vibrational system and the magnetic circuit system is mounted on shell, the shell includes the first shell being connected and fixed And second shell, the vibrational system include the first vibrating diaphragm, the magnetic circuit system includes conductive magnetic yoke, wherein first vibrating diaphragm It is installed in the one side far from the second shell of the first shell, the conductive magnetic yoke and the second shell are molded into one Body.

Optionally, the magnetic circuit system further includes center magnetic path portion and side magnetic circuit part, the center magnetic path portion and Magnetic gap is formed between the magnetic circuit part of side；

The center magnetic path portion includes center magnet in the conductive magnetic yoke and on the center magnet Center magnetic conductive board, the magnetic conductive board when magnetic circuit part includes spaced with the center magnetic conductive board, the side magnetic conductive board The first shell is fixed in injection molding.

Optionally, it is described while magnetic circuit part further include be respectively arranged on the center magnet opposite sides first while magnet With the second side magnet, the magnet when magnetic conductive board includes being respectively provided at described first and second while on magnet first while magnetic conduction Plate and the second side magnetic conductive board.

Optionally, the conductive magnetic yoke is in tabular, and is arranged to constitute the bottom wall of the second shell.

Optionally, the first shell is provided with depressions/protrusions structure towards the side of the second shell, and described second Shell is provided with compatible convex/concave structure towards the side of the first shell；The first shell and described second Shell passes through the protrusion and sunk structure positioning matched, also, the first shell and the second shell apply gluing Knot is fixed together.

Optionally, the first shell is equipped with for the voice coil of the vibrational system to be electrically connected with external circuit One electrical connector and the second electrical connector, first electrical connector and the second electrical connector sound with the vibrational system respectively The two leads connection of circle.

Optionally, the first shell is set as rectangle, and first electrical connector and the second electrical connector are set to described One end of the short side of first shell.

Optionally, one end convex of the short side of the first shell is equipped with installation protrusion；

First electrical connector have be emerging in respectively it is described installation protrusion and in the first shell first Pad and the second pad；Second electrical connector, which has, to be emerging in the installation protrusion respectively and is located in the first shell Third pad and the 4th pad；

First pad and the third pad are electrically connected with for external circuit.

Optionally, third electrical connector and electric adapter are additionally provided in the first shell, the third electrical connector is set In one end far from the installation protrusion of the first shell, the both ends of the electricity adapter are connected to the third electricity Connector and second electrical connector；

One lead of the voice coil is successively electrically connected through the third electrical connector and the electric adapter with described second Part electrical connection, another lead are electrically connected with first electrical connector.

Optionally, the third electrical connector has the 5th pad for being emerging in the first shell upper side and is emerging in 6th pad of the first shell downside, second pad are emerging in the upper side of the first shell, and the described 4th Pad is emerging in the downside of the first shell, and the 6th pad and the 4th pad are close to the first shell Same long side setting；

The both ends of the electricity adapter are connected to the 6th pad and the 4th pad；

Two leads of the voice coil are connected to the 5th pad and second pad.

Optionally, the downside of the first shell, which is offered, extends to drawing for the 4th pad by the 6th pad Wire casing, the electricity adapter are embedded in the wire lead slot.

Optionally, the vibrational system further includes the second vibrating diaphragm being oppositely arranged with first vibrating diaphragm, second vibration Film is installed in the one side far from the first shell of the second shell, and the voice coil of the vibrational system is set to described the On the downside of one vibrating diaphragm；

The magnetic circuit system is set between first vibrating diaphragm and the second vibrating diaphragm, the magnetic circuit system and first vibrating diaphragm Between form first operatic tunes, the Voice coil portions protrude into the magnetic gap of the magnetic circuit system；The magnetic circuit system and described the Second operatic tunes is formed between two vibrating diaphragms, and gas port is equipped between first operatic tunes and second operatic tunes.

Optionally, the microphone device further includes connector, and the connector is at least partially disposed in the gas port, institute The upper end for stating connector is fixedly connected with first vibrating diaphragm, and lower end is fixedly connected with second vibrating diaphragm.

Optionally, the gas port includes being arranged in the second shell and being connected between the magnetic of the magnetic circuit system The side gas port of gap and second operatic tunes, the side gas port are provided with multiple, and multiple side gas ports are between the magnetic The circumferentially-spaced arrangement of gap；

The connector includes connecting bottom board and multiple Connection protrusions for being convexly equipped on the connecting bottom board, the connection bottom Plate is set between the second shell and second vibrating diaphragm and is fixedly connected with second vibrating diaphragm, and multiple connections are convex Portion corresponds respectively to be fixedly connected across multiple side gas ports with first vibrating diaphragm.

Optionally, the plate-like setting of the Connection protrusion；The Connection protrusion upper end is formed with inside or outside or portion Divide the connection flange of the outside bending of inward portion；And/or

The plate-like setting of Connection protrusion, the inside bending in side lower end of the Connection protrusion extended to form with it is described The side reinforcement part of connecting bottom board connection；And/or

The inside lower end of the Connection protrusion is equipped with the ribs connecting with the connecting bottom board；And/or

The connecting bottom board is arranged in Openworks shape；And/or

The plate-like setting of Connection protrusion, and the Connection protrusion is arranged in Openworks shape；And/or

The connecting bottom board is set as rectangular, round, track type or ellipse.

Optionally, first vibrating diaphragm include the first central part, around the first central part setting the first ring portion and Around the first fixed part of the first ring portion setting；The Connection protrusion is fixed on the downside of first central part, and described first Ring portion is the structure being made of a protrusion or first ring portion is by least one protrusion and at least one recess The wavy shaped configuration of composition；And/or

Second vibrating diaphragm includes the second central part, around the second ring portion of the second central part setting and around second Second fixed part of ring portion setting；The connecting bottom board is fixed on the upside of second central part, and second ring portion is The structure being made of a protrusion or second ring portion are by least one protrusion and at least one wave constituted that is recessed Shape wave structure.

Optionally, first vibrating diaphragm further includes the first reinforcement part for being incorporated into first central part, and described first mends The periphery in strong portion corresponds to the Connection protrusion and first central part abutting edge is equipped with the first notch；And/or

Second vibrating diaphragm further includes the second reinforcement part for being incorporated into second central part, the week of second reinforcement part Edge corresponds to the periphery of the connecting bottom board and second central part abutting edge is equipped with the second notch.

Optionally, the connector is the second reinforcement part one for being incorporated on second vibrating diaphragm to close to described first Structure made of the bending of vibrating diaphragm/voice coil direction extends；

Alternatively, the voice coil is wound around on speech coil framework, the connector is the speech coil framework one to close to described Structure made of the bending of second vibrating diaphragm/second reinforcement part direction extends.

Optionally, the gas port includes the center air guide through the conductive magnetic yoke and the magnetic circuit system middle position Hole.

The utility model additionally provides a kind of portable terminal, including shell, and the enclosure interior has accommodating cavity, further includes Such as above-mentioned microphone device, the microphone device is mounted on the accommodating cavity, and the shell offers corresponding first vibrating diaphragm The first acoustic aperture, and the second acoustic aperture of corresponding second vibrating diaphragm.

Optionally, the shell has the obverse and reverse being oppositely arranged, and first acoustic aperture is set to front, and institute It states the second acoustic aperture and is set to reverse side.

The microphone device of the utility model, by the way that conductive magnetic yoke injection molding is fixed on the second housing, so that conductive magnetic yoke and the Two shells become the independent components being wholely set, so as to reduce the assembling process of conductive magnetic yoke and shell, to solve Conductive magnetic yoke and the inconvenient problem of shell assembly；For the microphone device of small volume, it is greatly improved its dress With efficiency.Meanwhile being adhered on shell compared to by conductive magnetic yoke, conductive magnetic yoke injection molding is fixed on second shell by the utility model On, the bonding strength of conductive magnetic yoke and second shell can be improved, so that the bonding strength between conductive magnetic yoke and shell can be improved, prevent It loosens, so as to promote the reliability of microphone device product.In addition, traditional plastic shell is split as by the utility model Two housing sections are fitted together along assembly direction, the space that magnetic circuit system can be given bigger compared to existing technologies, into One step promotes properties of product.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the positive structure schematic of one embodiment of the utility model microphone device；

Fig. 2 is the structure schematic diagram of microphone device in Fig. 1；

Fig. 3 is a visual angle the schematic diagram of the section structure of microphone device in Fig. 1；

Fig. 4 is the partial structural diagram in Fig. 3；

Fig. 5 is another visual angle the schematic diagram of the section structure of microphone device in Fig. 1；

Fig. 6 is the configuration schematic diagram of microphone device in Fig. 1；

Fig. 7 is the structural schematic diagram of shell in Fig. 1；

Fig. 8 is the structural schematic diagram of second shell in Fig. 7；

Fig. 9 is the utility model microphone device, positive structure schematic when voice coil is installed in first shell；

Figure 10 is structure schematic diagram when voice coil is installed in first shell in Fig. 9；

Figure 11 is the utility model microphone device, the structural schematic diagram of magnetic circuit system；

Figure 12 is the utility model microphone device, the structural schematic diagram of connector second embodiment；

Figure 13 is the utility model microphone device, the structural schematic diagram of connector 3rd embodiment；

Figure 14 is the utility model microphone device, the structural schematic diagram of connector fourth embodiment；

Figure 15 is the utility model microphone device, the structural schematic diagram of the 5th embodiment of connector or sixth embodiment；

Figure 16 is the utility model microphone device, the structural schematic diagram of the 7th embodiment of connector；

Figure 17 is the positive structure schematic of one embodiment of the utility model portable terminal；

Figure 18 is the structure schematic diagram of portable terminal in Figure 17；

Figure 19 is the partial profile structure in Figure 17 at A.

Drawing reference numeral explanation:

Label	Title	Label	Title
				100	Microphone device	311	Protrusion is installed
10	Vibrational system	312	Wire lead slot
				11	First vibrating diaphragm	32	Second shell
111	First central part	33	Third acoustic aperture
				112	First ring portion	34	Damping
113	First fixed part	41	First electrical connector
				114	First reinforcement part	411	First pad
1141	First notch	412	Second pad
				12	Second vibrating diaphragm	42	Second electrical connector
121	Second central part	421	Third pad
				122	Second ring portion	422	4th pad
123	Second fixed part	43	Third electrical connector
				124	Second reinforcement part	431	5th pad
1241	Second notch	432	6th pad
				13	Voice coil	44	Electric adapter
20	Magnetic circuit system	50	Connector
				21	Conductive magnetic yoke	51	Connecting bottom board
22	Magnetic gap	52	Connection protrusion
				23	Center magnet	521	Connect flange
24	Center magnetic conductive board	522	Side reinforcement part
				25	Side magnetic conductive board	523	Ribs
251	First side magnetic conductive board	60	Front cover
				252	Second side magnetic conductive board	70	Rear cover
26	First side magnet	1000	Portable terminal
				27	Second side magnet	200	Shell
28	Side gas port	201	Accommodating cavity
				30	Shell	202	First acoustic aperture
31	First shell	203	Second acoustic aperture

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

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 all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture) Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve The combination of case is not present, also not within the protection scope of the requires of the utility model.

The utility model proposes a kind of microphone devices.

In the utility model embodiment, as shown in Figures 1 to 8, the microphone device 100 includes vibrational system 10, magnetic Road system 20 and auxiliary system, the auxiliary system include shell 30, and the vibrational system 10 and magnetic circuit system 20 are installed on institute Shell 30 is stated, the shell 30 includes the first shell 31 and second shell 32 being interconnected and fixed；The vibrational system includes First vibrating diaphragm 11, wherein first vibrating diaphragm 11 is installed on the one side far from the second shell 32 of the first shell 31 On, the magnetic circuit system 20 includes conductive magnetic yoke 21, and the injection molding of the conductive magnetic yoke 21 is integrated with the injection molding of second shell 32.

It is appreciated that the utility model microphone device 100, by the way that the injection molding of conductive magnetic yoke 21 is fixed in second shell 32, So that conductive magnetic yoke 21 and second shell 32 become the components being wholely set, so as to reduce conductive magnetic yoke 21 and shell 30 The assembly effect of microphone device 100 can be improved to solve the problems, such as that conductive magnetic yoke 21 and shell 30 assemble inconvenience in assembling process Rate, and bigger space can be provided for magnetic circuit system 20, promote properties of product；Especially for the acoustical generator of small volume For part 100, it is greatly improved its assembly efficiency.Meanwhile it being adhered on shell 30 compared to by conductive magnetic yoke 21, the utility model The injection molding of conductive magnetic yoke 21 is fixed in second shell 32, the bonding strength of conductive magnetic yoke 21 Yu second shell 32 can be improved, so as to The bonding strength between conductive magnetic yoke 21 and shell 30 is improved, prevents and loosens, it can so as to promote 100 product of microphone device By property, and then the quality of microphone device 100 and portable terminal can be improved.

Further, as shown in Fig. 3 to Fig. 5 and Figure 11, the magnetic circuit system 20 further includes center magnetic path portion and side magnetic Road part forms magnetic gap 22 between the center magnetic path portion and side magnetic circuit part；

The center magnetic path portion includes the center magnet 23 in the conductive magnetic yoke 21 and is set on center magnet 23 Center magnetic conductive board 24, the magnetic conductive board 25 when magnetic circuit part includes spaced with center magnetic conductive board 24, the side is led The first shell 31 is fixed in the injection molding of magnetic sheet 25.

In compared to the prior art, side magnetic sheet is bonded on shell 30, the utility model microphone device 100, pass through by The injection molding of side magnetic conductive board 25 is fixed in first shell 31, so that side magnetic conductive board 25 and first shell 31 were wholely set as one Component, so as to reduce the assembling process of side magnetic conductive board 25 Yu shell 30, to solve side magnetic conductive board 25 and the assembly of shell 30 Inconvenient problem so that the assembly efficiency of microphone device 100 can be improved, and can be provided further for magnetic circuit system 20 bigger Space, further promote properties of product；For the microphone device 100 of small volume, it can further improve Its assembly efficiency.Meanwhile being adhered directly on shell 30 compared to by side magnetic conductive board 25, the utility model is by 25 note of side magnetic conductive board Modeling is fixed in first shell 31, the bonding strength of side magnetic conductive board 25 Yu first shell 31 can be improved, so that side magnetic conduction can be improved Bonding strength between plate 25 and shell 30, prevents and loosens, so as to further promote the reliable of 100 product of microphone device Property.

Further, as shown in Fig. 3 to Fig. 5 and Figure 11, the side magnetic circuit part further includes being respectively arranged on center magnet 23 Opposite sides first in magnet 26 and second magnet 27, it is described while magnetic conductive board 25 include be respectively provided at described first while magnetic Body 26 and second while on magnet 27 first while magnetic conductive board 251 and the second side magnetic conductive board 252.I.e. by the magnetic circuit of microphone device 100 System 20 is set as three magnet magnetic circuit systems, and magnetic gap 22 is formed between center magnet 23 and side magnet.

Further, as shown in Figure 8 and Figure 11, the conductive magnetic yoke 21 is in tabular, and is arranged to constitute second shell 32 bottom wall.It so may not only facilitate and the injection molding of conductive magnetic yoke 21 be fixed in second shell 32.Moreover, setting conductive magnetic yoke 21 to The bottom wall of second shell 32 can increase as much as possible magnetic conduction under the premise of not increasing the thickness of second shell 32 and shell 30 The thickness of yoke 21, so that the magnetic conduction effect of conductive magnetic yoke 21 can be improved, while the miniaturization for being advantageously implemented microphone device 100 is set Meter.Furthermore shell is split as two housing sections, compared to existing technologies, it is also capable of increasing the space of magnetic circuit, is further mentioned Rise the acoustical behavior of product.

In the present embodiment, the shell 30 is generally configured as rectangle, and the conductive magnetic yoke 21 is also generally configured as rectangle, institute State first in magnet 26 and second magnet 27 be respectively arranged on two long sides of conductive magnetic yoke 21.

Specifically, as shown in figure 11, the center magnet 23, first magnet 27 in magnet 26 and second is bonded in The upper side of second shell 32.

Further, as shown in figs. 7 to 11, the first shell 31 is provided with towards the side of the second shell 32 Depressions/protrusions structure (can specifically be distributed in quadrangle), and the second shell 32 is arranged towards the side of the first shell 31 There is compatible convex/concave structure (can correspond to and be distributed in quadrangle)；The first shell 31 passes through with the second shell 32 The protrusion and sunk structure positioning matched.Also, the first shell 31 can pass through painting with the second shell 32 Gluing knot is fixed together.It is convenient for the assembly of two housing sections in this way, and positioning is more accurate.Specifically, the location structure can To be set as positioning rod structure.

Further, as shown in Figure 2 and Figure 7, the stitching portion of the first shell 31 and the second shell 32 is formed with Third acoustic aperture 33, the third acoustic aperture 33 are connected to the operatic tunes in microphone device 100；Also, resistance is pasted in third acoustic aperture 33 Buddhist nun 34.In this way, the inner and outer air pressure and temperature of microphone device 100 can be balanced, to guarantee that microphone device 100 works normally.

In the present embodiment, there are two the settings of third acoustic aperture 33, which is respectively arranged on shell 30 Long side.

Certainly, the magnetic circuit system 20 of microphone device 100 may be set to be single magnet magnetic circuit system.For example, practical at this In novel other embodiments, the conductive magnetic yoke 21 includes bottom wall and the side wall set on bottom wall periphery, the bottom of the conductive magnetic yoke 21 Wall injection molding is fixed in second shell 32, and the bottom wall of the conductive magnetic yoke 21 is set as the bottom wall of second shell 32, and the side is led Magnetic sheet 25 is arranged on the side wall of conductive magnetic yoke 21, and magnetic gap 22 is formed between center magnet 23 and the side wall of conductive magnetic yoke 21, It need not be described in detail herein.

Further, as shown in Fig. 2, Fig. 9 and Figure 10, the outside of the shell 30 is equipped with for by the sound of vibrational system 10 The first electrical connector 41 and the second electrical connector 42 that circle 13 is electrically connected with external circuit, first electrical connector 41 and second Electrical connector 42 is connect with two leads of the voice coil 13 of vibrational system 10 respectively.In this way, by partition shell 30 and by voice coil 13 It is located at the design of the outside of shell 30 with the contact that is electrically connected of external circuit, bigger space can be provided for magnetic circuit system 20, from And the acoustical behavior of microphone device 100 can be improved；Meanwhile the effective radiating area for increasing vibrating diaphragm is also helped, so as to make Microphone device 100 obtains more preferably acoustical behavior.

Further, as shown in figure Fig. 2, Fig. 9 and Figure 10, first electrical connector 41 and the second electrical connector 42 are set to One end of the short side of the shell 30, in order to which the assembly of microphone device 100 and portable terminal 1000 uses.

Specifically, as shown in Figure 9 and Figure 10, for the ease of the first electrical connector 41, the second electrical connector 42 and external electrical Road connection, one end convex of the short side of the first shell 31 are equipped with installation protrusion 311, and first electrical connector 41 has The first pad 411 being emerging on installation protrusion 311, second electrical connector 42, which has, to be emerging on installation protrusion 311 Third pad 421, first pad 411 and the third pad 421 are electrically connected with for external circuit.

And it is electrically connected for the ease of the first electrical connector 41, the second electrical connector 42 and the voice coil 13 of vibrational system 10, institute Stating the first electrical connector 41 also has the second pad 412 being emerging in first shell 31, and second electrical connector 42 also has There is the 4th pad 422 being emerging in first shell 31, two leads of the voice coil 13 are respectively cither indirectly or directly with described the Two pads 412 and the 4th pad 422 electrical connection.

Further, as shown in Figure 9 and Figure 10, third electrical connector 43 and electricity switching are additionally provided in the first shell 31 Part 44, the third electrical connector 43 are set to one end of the separate installation protrusion 311 of first shell 31, the electricity adapter 44 Both ends are connected to third electrical connector 43 and the second electrical connector 42；One lead of the voice coil 13 is successively electrically connected through third Fitting 43 and the electric adapter 44 are electrically connected with the second electrical connector 42, and another lead is electrically connected with the first electrical connector 41.

So, it is only necessary to which the contact that is electrically connected of voice coil 13 and external circuit can be led to first shell by three electrical connectors 50 The outside of body 31, so that the structure of first shell 31 is simple, easy to make.

It should be pointed out that in embodiment provided by the utility model, to simplify the description, with first shell 31 in second shell For with reference to defining up and down, i.e. under the direction of first shell 31 towards second shell 32 is, i.e., first shell 31 is backwards to the on body The direction of two shells 32 is upper.

Further, as shown in Figure 9 and Figure 10, the third electrical connector 43, which has, is emerging in 31 upper side of first shell The 5th pad 431 and be emerging in the 6th pad 432 of 31 downside of first shell, second pad 412 is emerging in first The upper side of shell 31, the 4th pad 422 are emerging in the downside of first shell 31, and the 6th pad 432 and Four pads 422 are arranged close to the same long side of first shell 31；The both ends of the electricity adapter 44 are connected to the 6th pad 432 and the 4th pad 422；Two leads of the voice coil 13 are connected to the 5th pad 431 and the second pad 412.Specifically, The installation protrusion 311 is arranged also close to a long side of first shell 31, can so play the role of structure fool proof.

It is appreciated that by two leads of voice coil 13 respectively with the 4th pad 422 and the 5th that is located at 31 both ends of first shell Pad 431 connects, and can reduce the risk of the lead broken string of voice coil 13 when microphone device 100 works, while can also weaken even Eliminate souffle problem caused by coil lead.

Specifically, as shown in Figure 9 and Figure 10, the downside of the first shell 31 is offered to be extended by the 6th pad 432 To the wire lead slot 312 of the 4th pad 422, the electricity adapter 44 is embedded in wire lead slot 312.First shell 31 and second shell After 32 assembly, second shell 32 covers the notch of wire lead slot 312, and second shell 32 covers the 4th pad 422 and the 6th pad 432, so avoidable extraneous factor breaks the turning circuit of the voice coil 13 in ring shell 30.

It particularly, can be first by the first electrical connector 41, the second electrical connector 42, third electrical connector 43 and electric adapter 44 are integrated into first shell 31, while centring magnet and side magnet being adhered in second shell 32, then by first shell 31 are assembled into shell 30 with the splicing of second shell 32, then two leads of voice coil 13 can be welded to the 4th pad 422 and the 5th Pad 431.In this way, assembling difficulty is just reduced, so that the production efficiency of microphone device 100 can be improved, shorten microphone device 100 Production cycle, and can further increase magnetic circuit space, promote the acoustical behavior of product.

In the present embodiment, the electric adapter 44 may be configured as bright and beautiful silk thread, enameled wire or overstriking enameled wire etc..

Further, the utility model microphone device 100 is either single vibrating diaphragm microphone device 100, is also possible to double vibrations Film microphone device 100.When the utility model microphone device 100 is set as single vibrating diaphragm, existing single vibrating diaphragm microphone device can refer to Structure type and the embodiments of the present invention need not repeat one by one herein.

In some embodiments provided by the utility model, the microphone device 100 is set as double diaphragm, specifically, such as Shown in Fig. 1 to Fig. 8, the vibrational system 10 further includes the second vibrating diaphragm 12 being oppositely arranged with the first vibrating diaphragm 11, second vibration Film 12 is installed in the one side far from the first shell 31 of the second shell 32, and the voice coil 13 of the vibrational system 10 Set on 11 downside of the first vibrating diaphragm.

The magnetic circuit system 20 is set between first vibrating diaphragm 11 and the second vibrating diaphragm 12, the magnetic circuit system 20 and first First operatic tunes (figure is not marked) is formed between vibrating diaphragm 11, the voice coil 13 partially protrudes into the magnetic gap 22 of magnetic circuit system 20；It is described Second operatic tunes (figure is not marked) is formed between magnetic circuit system 20 and the second vibrating diaphragm 12, is arranged between first operatic tunes and second operatic tunes There is gas port.

The vibration principle of first vibrating diaphragm 11 can refer to existing form, specifically, voice coil 13 and the first vibrating diaphragm 11 are solid Magnetic gap 22 is connected and gos deep into calmly, the electric current of the connection variation of voice coil 13 is then vibrated, voice coil 13 by different size of Ampere force Vibration drives the vibration of the first vibrating diaphragm 11, and energy conversion mode is electric energy-mechanical energy-sound energy.In order to adjust the frequency of vibration Characteristic, also settable clump weight.

Gas port opens up form, can be corresponding connection magnetic gap 22 and second on the bottom wall for being only provided with conductive magnetic yoke 21 The operatic tunes；Or be provided with the middle position of magnetic circuit system 20, i.e., successively penetrate through center magnetic conductive board 24, center magnet 23 and conductive magnetic yoke 21 and be connected to first operatic tunes and second operatic tunes；Or it is provided with the side of center magnet 23 and in center magnet 23 after downward bending It penetrates through the bottom wall of conductive magnetic yoke 21 and is connected to magnetic gap 22 and second operatic tunes.As long as first operatic tunes and second operatic tunes can be connected to, and lead The circulation area size of stomata is enough that the air-flow to circulate in gas port is enable to push 12 sounding of the second vibrating diaphragm.

The utility model microphone device 100 is by using double diaphragm vibration sounding, and only with a set of voice coil 13 and magnetic circuit System 20 realizes double diaphragm Bidirectional sounding, so that microphone device 100 small volume, convenient for being widely used in portable terminal 1000.Specifically, first directly driving the first vibrating diaphragm 11 when the microphone device 100 of the utility model works by magnetic circuit system 20 and shaking It is dynamic, so that the air compression or expansion of first operatic tunes, are connected to, air due to being equipped with gas port between first operatic tunes and second operatic tunes By circulating in gas port, under the promotion of air-flow, the second vibrating diaphragm 12 therewith expand or press by vibration sounding, the linkage of second operatic tunes Contracting, is consequently formed positive first vibrating diaphragm 11 and actively radiates, the Bidirectional sounding structure that the second vibrating diaphragm 12 of reverse side passively radiates.It answers When for portable terminal 1000, the microphone device 100 of the utility model can be respectively to positive and negative two sides of portable terminal 1000 To sounding.

It is appreciated that above-mentioned design be 12 sounding of the second vibrating diaphragm is driven based on the circulation of air in gas port, and this In the further embodiment of utility model, 12 vibration sounding of the second vibrating diaphragm is driven in order to realize, it can also be by adding connection Part 50 drives 12 sounding of the second vibrating diaphragm to connect the first vibrating diaphragm 11 and the second vibrating diaphragm 12.Certainly, connector 50 can not also be added, 12 sounding of the second vibrating diaphragm is only driven by the circulation of air in gas port.

Further, as shown in Figures 3 to 6, the microphone device 100 further includes connector 50, the connector 50 to Small part is set in gas port, and the upper end of the connector 50 is fixedly connected with the first vibrating diaphragm 11, and lower end and the second vibrating diaphragm 12 are solid Fixed connection.In this way, first vibrating diaphragm 11 will drive 12 synchronous vibration sounding of the second vibrating diaphragm under the pushing or pull on of connector 50. Also, while the first vibrating diaphragm 11 and the second vibrating diaphragm 12 linkage sounding, since first operatic tunes air intracavitary with the rising tone obtains Mutually to be circulated by gas port, the draught head of the two is smaller, hinders to caused by vibration of first vibrating diaphragm 11 with the second vibrating diaphragm 12 Power is also relatively small, so as to realize more preferably acoustical behavior.

Specifically, being connected compared to 12 sounding of the second vibrating diaphragm is only driven by the circulation of air in gas port when passing through Part 50 realizes that adaptive change can also occur for the specific constructive form of gas port when driving the second 12 vibration sounding of vibrating diaphragm, as long as Can facilitate connector 50 gas port can activity, realize the first vibrating diaphragm 11 and the second vibrating diaphragm 12 linkage, and connector 50 and The airflow channel to be connected to first operatic tunes and second operatic tunes is formed between the inner wall of gas port.

Specifically, the connection between the first vibrating diaphragm 11 or the second vibrating diaphragm 12 of the connector 50, it is viscous to can be glue It connects, or is integrally formed connection；The upper and lower ends of connector 50 are adhered to the first vibrating diaphragm 11 or the respectively in the present embodiment Two vibrating diaphragms 12.

Specifically, in order to reduce the weight of component under the premise of proof strength, the material of connector 50 includes but unlimited In the metal materials such as carbon fibre material, aluminium foil/magnesium alloy/magnesium lithium alloy, PEN (polyethylene naphthalate)/PI (polyamides Imines)/LCP (Liquid Crystal Polymer liquid crystal polymer)/PC (polycarbonate)/PPA (Polyphthalamide Polyphthalamide) etc. plastic materials or porous material etc..The processing method of connector 50 including but not limited to: coiling is blown Modeling, injection molding, punching press, machining etc..

As shown in Figures 3 to 6, the utility model is provided on the bottom wall of conductive magnetic yoke 21 with gas port to be connected to magnetic gap 22 It realizes to connect the first vibrating diaphragm 11 and the second vibrating diaphragm 12 with second operatic tunes and by setting connector 50 and drives the second vibrating diaphragm 12 For sounding, the utility model is explained further.

Specifically, as shown in Figures 3 to 6, the gas port includes being arranged in second shell 32 and being connected to magnetic circuit system The magnetic gap 22 of system 20 and the side gas port 28 of second operatic tunes, specifically, one due to conductive magnetic yoke as second shell bottom wall Point, therefore, side gas port 28 can be set in conductive magnetic yoke (i.e. on the bottom wall of second shell), also can be set in second shell The bottom wall portion in addition to conductive magnetic yoke, specific location is unrestricted.The side gas port 28 is provided with multiple, multiple sides Circumferentially-spaced arrangement of the gas port 28 along magnetic gap 22；

The connector 50 includes connecting bottom board 51 and the multiple Connection protrusions 52 being convexly equipped on connecting bottom board 51, the company It connects bottom plate 51 to be set between second shell 32 and the second vibrating diaphragm 12 and be fixedly connected with the second vibrating diaphragm 12, multiple connections are convex Portion 52 corresponds respectively to be fixedly connected across multiple side gas ports 28 with the first vibrating diaphragm 11.

So, it can be achieved that the first vibrating diaphragm 11 will drive 12 synchronous vibration sounding of the second vibrating diaphragm.Simultaneously as side gas port 28 It is the edge side that vibrating diaphragm is set, if a Connection protrusion 52 is only arranged, the first vibrating diaphragm 11 and the second vibrating diaphragm 12 can be made The synchronism of vibration is poor；And the first vibrating diaphragm 11 and the second vibration can be improved by the way that multiple Connection protrusions 52 are arranged in the utility model The uniformity of the transmitting of power between film 12, so that the synchronism of the first vibrating diaphragm 11 and the vibration of the second vibrating diaphragm 12 can be improved.

It is appreciated that the quantity of the Connection protrusion 52 is more, the synchronism of the first vibrating diaphragm 11 and the vibration of the second vibrating diaphragm 12 Also better, but simultaneously, the quantity of the Connection protrusion 52 is more, and not only the structure of microphone device 100 can be made more complicated, but also Because Connection protrusion 52 is arranged in magnetic gap 22, the influence moved in magnetic gap 22 to voice coil 13 also can be bigger.Therefore it is described The quantity of Connection protrusion 52 is preferably two or three, two or three 52 central symmetries of Connection protrusion.

In the present embodiment, the shell 30 is substantially rectangular, and the connecting bottom board 51 is also generally rectangular shaped, the connection The quantity of protrusion 52 is preferably two, and the two of the short side of the connecting bottom board 51 are symmetrically arranged in two Connection protrusions 52 End.

Further, as shown in Figure 12 to Figure 15, in the first to the 7th embodiment of connector 50, the Connection protrusion 52 plate-like settings.In this way, can not only reduce the Connection protrusion 52 space shared in magnetic gap 22, it is also ensured that it is passed Structural strength when dynamic, and can be by reducing Mass lost energy loss.The transmission of connector 50 refers to is with the first vibrating diaphragm 11 With reference to pushing or pull on the second vibrating diaphragm 12.

As shown in figure 12, in the second embodiment of connector 50, the plate-like setting of the Connection protrusion 52, the connection 52 upper end of protrusion is formed with inside or outside or the outside bending of part inward portion connection flange 521.In this way, company can be increased The contact area of protrusion 52 and the first vibrating diaphragm 11 is connect, it is strong so as to enhance the connection between Connection protrusion 52 and the first vibrating diaphragm 11 Degree, so as to enhance the reliability of microphone device 100.

As shown in figure 13, in the 3rd embodiment of connector 50, the plate-like setting of the Connection protrusion 52, the connection The inside bending in side lower end of protrusion 52 extends to form the side reinforcement part 522 connecting with connecting bottom board 51, the side reinforcement part 522 both can be set in the side of the Connection protrusion 52, may also be arranged on the two sides of Connection protrusion 52.In this way, company can be enhanced The structural strength of fitting 50.

As shown in figure 14, in the fourth embodiment of connector 50, the plate-like setting of the Connection protrusion 52, the connection The inside lower end of protrusion 52 is equipped with the ribs 523 connecting with connecting bottom board 51, and/or, the connecting bottom board 51, which is equipped with, to be added Strong convex rib structure, and/or, the Connection protrusion 52, which is equipped with, reinforces convex rib structure.In this way, the structure that can enhance connector 50 is strong Degree.

As shown in figure 15, in the 5th embodiment of connector 50, the connecting bottom board 51 is arranged in Openworks shape.In this way, It not only can guarantee structural strength when its transmission, and can be by reducing Mass lost energy loss.

In the sixth embodiment of connector 50, the plate-like setting of the Connection protrusion 52, and the Connection protrusion 52 is in Openworks shape setting.In this way, not only can guarantee structural strength when its transmission, and can be by reducing Mass lost energy loss.Together When, the Connection protrusion 52 is arranged in Openworks shape, the air of 52 two sides of Connection protrusion is aloowed to be circulated, so as to Increase valid circulation area indirectly.

As shown in figure 16, in the 7th embodiment of connector 50, the connecting bottom board 51 is provided in round；Certainly, institute Stating connecting bottom board 51 may be alternatively provided as rectangular, track type or ellipse etc..

It is understood that the second to the 7th embodiment of connector 50 can be combined with each other, as long as not contradictory.

Further, as shown in Figures 3 to 5, first vibrating diaphragm 11 includes the first central part 111, surrounds the first center The first ring portion 112 that portion 111 is arranged and the first fixed part 113 around the setting of the first ring portion 112；The Connection protrusion 52 are fixed on 111 downside of the first central part；First central part 111 is plane platelet structures；First ring portion 112 be the structure being made of a protrusion or first ring portion 112 is by least one protrusion and at least one recess The wavy shaped configuration of composition

In the present embodiment, the first central part 111 is to bear the active force of connector 50 and vibration sounding joins therewith Dynamic radiation sounding, by setting plane platelet structures for the first central part 111, such first vibrating diaphragm 11 accounts in the up-down direction Space is smaller, and can produce sufficiently large amplitude.And the movement centered on the first ring portion 112 provides centainly It is pliable, that is, certain flexibility is provided, allow the first central part 111 to be easier to connected piece 50 or air push.

Specifically, the microphone device 100 further includes front cover 60, first fixed part 113 is held on front cover 60 and Between one shell 31.

Based on the principle essentially identical with first vibrating diaphragm 11, second vibrating diaphragm 12 includes the second central part 121, encloses The second ring portion 122 around the setting of the second central part 121 and the second fixed part 123 around the setting of the second ring portion 122；Institute It states connecting bottom board 51 and is fixed on 121 upside of the second central part；Second central part 121 is plane platelet structures, described Second ring portion 122 is the structure being made of a protrusion or second ring portion 122 for by least one protrusion and extremely The wavy shaped configuration that a few recess is constituted.

Specifically, the microphone device 100 further includes rear cover 70, second fixed part 123 is held on rear cover 70 and Between two shells 32.

Particularly, first central part 111 and the second central part 121 are disposed as laminated structure, may make practical 100 body of microphone device of novel offer generally forms up and down direction compared with thin structure, so, it is easier to apply empty in flat-shaped installation Between.

Further, as shown in Figures 3 to 5, first vibrating diaphragm 11 further includes be incorporated into the first central part 111 first Reinforcement part 114.The first reinforcement part 114 is arranged can be with primarily to increasing the rigidity of the first vibrating diaphragm 11, reduction diaphagras changes Kind high frequency performance.

Further, as shown in Figures 3 to 5, the upper end of the Connection protrusion 52 is Nian Jie with the first vibrating diaphragm 11, and described first The periphery of reinforcement part 114 is correspondingly connected with protrusion 52 and 111 abutting edge of the first central part and is equipped with the first notch 1141.In this way, can be just In reinforcement Connection protrusion 52 and 111 adhesive effect of the first central part.

Based on the principle essentially identical with first vibrating diaphragm 11, second vibrating diaphragm 12 further includes being incorporated into the second center Second reinforcement part 124 in portion 121, the periphery of second reinforcement part 124 correspond to the periphery and described the of the connecting bottom board 51 Two central parts, 121 abutting edge is equipped with the second notch 1241.In this way, can be viscous convenient for reinforcing connecting bottom board 51 and the second central part 121 Connect effect.

It should be noted that being two-way to be realized using independent connector 50 the first vibrating diaphragm of connection and the second vibrating diaphragm above It is introduced, but the technical program not only can be adapted for this situation, is can be applicable to using other modes for sounding The structure for realizing Bidirectional sounding, for example, the connector 50 can be the second reinforcement part one being incorporated on second vibrating diaphragm Body structure to made of extending close to the bending of the direction of first vibrating diaphragm/voice coil, that is to say, that be not introduced separately into a connection Component, but the bottom end of voice coil or the first vibrating diaphragm is extended to by integrally bending the second reinforcement part, equally it may be implemented.

Again alternatively, the voice coil can be wound around on speech coil framework, the connector 50 is the speech coil framework one It bends and extends to the direction close to second vibrating diaphragm/second reinforcement part, be achieved in the connection of the first vibrating diaphragm and the second vibrating diaphragm It is fixed.That is, the application of the technical program be not limited to it is above-mentioned enumerate, either round microphone device or rectangle are sent out Acoustic device, either single magnetic structure or multipath magnetic circuit structure, either unidirectional sounding or Bidirectional sounding, either with what Form as connector etc. not as the limitation application range of the technical program, as long as will be traditional in microphone device Shell is split as two housing sections and is integrated the conductive magnetic yoke in magnetic circuit system with second shell injection molding.

Certainly, in some other embodiment of the utility model, gas port is also provided with the interposition of magnetic circuit system 20 It sets.Specifically, the gas port includes the center gas port (not shown) through 20 middle position of conductive magnetic yoke 21 and magnetic circuit system, In this embodiment, the center gas port successively penetrates through center magnetic conductive board 24, center magnet 23 and conductive magnetic yoke 21 and is connected to First operatic tunes and second operatic tunes；Connector 50 is set as one, and is set in the center gas port, the connector 50 it is upper End is connect with the first vibrating diaphragm 11, and the lower end of the connector 50 is connect with the second vibrating diaphragm 12, wherein the connector 50 is preferably in Hollow tube-shape；It need not be described in detail herein.

Certainly, in other other embodiments of the utility model, center gas port and side gas port 28 can also be used The mode combined need not repeat one by one herein.

Especially emphasize it is that the utility model at least has following technical effect that herein

1) conductive magnetic yoke 21 and the injection molding of second shell 32 are integrated, and the injection molding of side magnetic conductive board 25 is fixed on first shell 31 On, it can solve the problems, such as that conductive magnetic yoke 21, side magnetic conductive board 25 and shell 30 assemble inconvenience, so that the dress of microphone device 100 can be improved With efficiency；

2) Bidirectional sounding is realized by a voice coil 13, structure is simple, is easily achieved；

3) product pad stretches out the outside of shell 30, on the one hand can allow effective spoke of the first vibrating diaphragm 11 and the second vibrating diaphragm 12 It penetrates area to be consistent, to guarantee that the first vibrating diaphragm 11 is consistent with the acoustical behavior of the second vibrating diaphragm 12；On the other hand the can be allowed again The effective radiating area of one vibrating diaphragm 11 and the second vibrating diaphragm 12 maximizes, and obtains optimal acoustical behavior performance；

4) design of the shell 200 that decouples and the outside that the contact that is electrically connected of voice coil 13 and external circuit is located to shell 30, Greater room can be provided for magnetic circuit system 20, can further promote the acoustical behavior of product.

The utility model also proposes a kind of portable terminal.As shown in Fig. 1 to Figure 19, the portable terminal 1000 includes shell 200, there is accommodating cavity 201, which further includes microphone device 100, the microphone device 100 inside shell 200 Specific structure is referring to above-described embodiment, since this portable terminal 1000 uses whole technical solutions of above-mentioned all embodiments, Therefore at least there are all beneficial effects brought by the technical solution of above-described embodiment, this is no longer going to repeat them.

Wherein, as shown in Figure 16 to Figure 19, the microphone device 100 is mounted on accommodating cavity 201, and shell 200 offers pair Answer the first acoustic aperture 202 of the first vibrating diaphragm 11, and the second acoustic aperture 203 of corresponding second vibrating diaphragm 12.

Preferably, in order to shorten the propagation path of 200 internal sound of shell, acoustic resistance is reduced, the first acoustic aperture 202 is opened in shell The position with 11 face of the first vibrating diaphragm of body 200, the second acoustic aperture 203 are opened in the position with 12 face of the second vibrating diaphragm of shell 200 It sets.

Further, the shell 201 of portable terminal 1000 has the obverse and reverse being oppositely arranged, wherein the first acoustic aperture 202 are set to front, and the second acoustic aperture 203 is set to reverse side, is achieved in two-way synchronous cant.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims

1. a kind of microphone device, including vibrational system and magnetic circuit system, the vibrational system and magnetic circuit system installation are fixed In on shell, which is characterized in that the shell includes the first shell and second shell being connected and fixed, the vibration system System includes the first vibrating diaphragm, and the magnetic circuit system includes conductive magnetic yoke, wherein first vibrating diaphragm is installed on the remote of the first shell In one side from the second shell, the conductive magnetic yoke is integrated with second shell injection molding.

2. microphone device as described in claim 1, which is characterized in that the magnetic circuit system further includes center magnetic path portion and side Magnetic circuit part forms magnetic gap between the center magnetic path portion and side magnetic circuit part；

The center magnetic path portion includes the center magnet in the conductive magnetic yoke and the center on the center magnet Magnetic conductive board, the magnetic conductive board when magnetic circuit part includes spaced with the center magnetic conductive board, the side magnetic conductive board injection molding It is fixed on the first shell.

3. microphone device as claimed in claim 2, which is characterized in that the side magnetic circuit part further includes being respectively arranged in described The magnet in magnet and second of the first of the opposite sides of heart magnet, the magnetic when magnetic conductive board includes being respectively provided at described first Body and second while on magnet first while magnetic conductive board and the second side magnetic conductive board.

4. microphone device as claimed in claim 3, which is characterized in that the conductive magnetic yoke is in tabular, and is arranged to constitute The bottom wall of the second shell.

5. microphone device as claimed in claim 4, which is characterized in that side of the first shell towards the second shell It is provided with depressions/protrusions structure, the second shell is provided with compatible convex/concave towards the side of the first shell Structure；The first shell and the second shell pass through the protrusion and sunk structure positioning matched, also, described the One shell and the second shell gluing are adhesively fixed together.

6. microphone device as described in claim 1, which is characterized in that the first shell is equipped with for by the vibration system The first electrical connector and the second electrical connector that the voice coil of system is electrically connected with external circuit, first electrical connector and the second electricity Connector is connect with two leads of the voice coil of the vibrational system respectively.

7. microphone device as claimed in claim 6, which is characterized in that the first shell is set as rectangle, first electricity Connector and the second electrical connector are set to one end of the short side of the first shell.

8. microphone device as claimed in claim 7, which is characterized in that one end convex of the short side of the first shell is equipped with Protrusion is installed；

First electrical connector has is emerging in the installation protrusion and the first pad in the first shell respectively With the second pad；Second electrical connector have be emerging in respectively the installation protrusion and in the first shell the Three pads and the 4th pad；

9. microphone device as claimed in claim 8, which is characterized in that be additionally provided in the first shell third electrical connector and Electric adapter, the third electrical connector are set to one end far from the installation protrusion of the first shell, the electricity switching The both ends of part are connected to the third electrical connector and second electrical connector；

One lead of the voice coil is successively through the third electrical connector and the electric adapter and second electrical connector electricity Connection, another lead are electrically connected with first electrical connector.

10. microphone device as claimed in claim 9, which is characterized in that the third electrical connector, which has, is emerging in described the 5th pad of one shell upper side and the 6th pad for being emerging in the first shell downside, second pad are emerging in The upper side of the first shell, the 4th pad are emerging in the downside of the first shell, and the 6th pad and 4th pad is arranged close to the same long side of the first shell；

Two leads of the voice coil are connected to the 5th pad and second pad.

11. microphone device as claimed in claim 10, which is characterized in that the downside of the first shell is offered by described 6th pad extends to the wire lead slot of the 4th pad, and the electricity adapter is embedded in the wire lead slot.

12. the microphone device as described in any one of claim 1 to 11, which is characterized in that the vibrational system further includes The second vibrating diaphragm being oppositely arranged with first vibrating diaphragm, second vibrating diaphragm are installed on separate described the first of the second shell In the one side of shell, and the voice coil of the vibrational system is set on the downside of first vibrating diaphragm；

The magnetic circuit system is set between first vibrating diaphragm and the second vibrating diaphragm, between the magnetic circuit system and first vibrating diaphragm First operatic tunes is formed, the Voice coil portions protrude into the magnetic gap of the magnetic circuit system；The magnetic circuit system and second vibration Second operatic tunes is formed between film, and gas port is equipped between first operatic tunes and second operatic tunes.

13. microphone device as claimed in claim 12, which is characterized in that the microphone device further includes connector, the company Fitting is at least partially disposed in the gas port, and the upper end of the connector is fixedly connected with first vibrating diaphragm, lower end and institute The second vibrating diaphragm is stated to be fixedly connected.

14. microphone device as claimed in claim 13, which is characterized in that the gas port includes being arranged in the second shell On and magnetic gap and second operatic tunes that be connected to the magnetic circuit system side gas port, the side gas port is provided with more It is a, circumferentially-spaced arrangement of multiple side gas ports along the magnetic gap；

The connector includes connecting bottom board and multiple Connection protrusions for being convexly equipped on the connecting bottom board, and the connecting bottom board is set It is fixedly connected between the second shell and second vibrating diaphragm and with second vibrating diaphragm, multiple Connection protrusions point It Yi Yiduiying not be fixedly connected across multiple side gas ports with first vibrating diaphragm.

15. microphone device as claimed in claim 14, which is characterized in that the plate-like setting of Connection protrusion；The connection Protrusion upper end is formed with inside or outside or the outside bending of part inward portion connection flange；And/or

The inside bending in side lower end of the plate-like setting of Connection protrusion, the Connection protrusion has extended to form and the connection The side reinforcement part of bottom plate connection；And/or

The connecting bottom board is arranged in Openworks shape；And/or

16. microphone device as claimed in claim 14, which is characterized in that first vibrating diaphragm includes the first central part, surrounds First ring portion of the first central part setting and the first fixed part being arranged around the first ring portion；The Connection protrusion is fixed On the downside of first central part, first ring portion is the structure being made of a protrusion or first ring portion For by least one protrusion and at least one wavy shaped configuration constituted that is recessed；And/or

Second vibrating diaphragm includes the second central part, around the second ring portion of the second central part setting and around the second ring Second fixed part of portion's setting；The connecting bottom board is fixed on the upside of second central part, and second ring portion is by one The structure or second ring portion that a protrusion is constituted are by least one protrusion and at least one waveform constituted that is recessed Structure.

17. microphone device as claimed in claim 16, which is characterized in that first vibrating diaphragm further includes being incorporated into described first First reinforcement part of central part, the periphery of first reinforcement part correspond to the Connection protrusion and first central part abutting edge Equipped with the first notch；And/or

Second vibrating diaphragm further includes the second reinforcement part for being incorporated into second central part, the periphery pair of second reinforcement part The periphery and second central part abutting edge for answering the connecting bottom board are equipped with the second notch.

18. microphone device as claimed in claim 13, which is characterized in that the connector is to be incorporated on second vibrating diaphragm The second reinforcement part one to close to first vibrating diaphragm/voice coil direction bending extend made of structure；

Alternatively, the voice coil is wound around on speech coil framework, the connector is the speech coil framework one to close to described second Structure made of the bending of vibrating diaphragm/second reinforcement part direction extends.

19. microphone device as claimed in claim 12, which is characterized in that the gas port includes running through the conductive magnetic yoke and institute State the center gas port in magnetic circuit system middle position.

20. a kind of portable terminal, including shell, the enclosure interior has accommodating cavity, which is characterized in that further includes that right such as is wanted Microphone device described in asking any one of 12 to 19, the microphone device are mounted on the accommodating cavity, and the shell offers pair Answer the first acoustic aperture of first vibrating diaphragm, and the second acoustic aperture of corresponding second vibrating diaphragm.

21. portable terminal as claimed in claim 20, which is characterized in that the shell is with the front being oppositely arranged and instead Face, first acoustic aperture is set to front, and second acoustic aperture is set to reverse side.