CN208638577U - Microphone device - Google Patents

Abstract

The utility model discloses a kind of microphone device, it includes the frame with accommodating space, is contained in accommodating space and is individually fixed in the vibrational system and magnetic circuit system of frame, it is characterized in that, microphone device further includes the leakage structure in frame, frame includes the side wall for surrounding accommodating space, leakage structure includes the leakage path and the breathable barrier for being covered on leak through side wall, and breathable barrier is metal mesh made of metal material.Compared with the relevant technologies, the microphone device acoustical behavior of the utility model is good and high reliablity, utilizes automated production.

Description

Microphone device

[technical field]

The utility model relates to electroacoustic conversion art more particularly to a kind of acoustical generators for applying to portable electronic product Part.

[background technique]

With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, the function of mobile phone is extremely various, one of them is just It is the music function of high-quality, therefore, the microphone device for playing sound is widely applied Intelligent mobile equipment till now Among.

The microphone device of the relevant technologies includes frame, the vibrational system for being fixed on frame and the driving vibrational system The magnetic circuit system of vibration sounding, the leak through frame setting and lid set the breathable barrier of the leak.

However, the breathable barrier is fixed in the frame by injection molding, institute in the microphone device of the relevant technologies State breathable barrier be non-refractory, mutability PET material made of screen cloth, injection molding clamping process in, screen cloth is easy meeting It is crushed out of shape and scalds, so as to cause the breathable barrier skew, or even the blocking leak, to reduce the hair The reliability of acoustic device.

Therefore, it is really necessary to provide a kind of new microphone device solution above-mentioned technical problem.

[utility model content]

The purpose of the utility model is to overcome above-mentioned technical problem, provide that a kind of acoustical behavior is excellent and the sounding of good reliability Device.

The utility model provides a kind of microphone device comprising has the frame of accommodating space, is contained in the receiving sky Between and be individually fixed in the vibrational system and magnetic circuit system of the frame, the microphone device further includes being set in the frame Leakage structure；The frame includes the side wall for surrounding the accommodating space, and the leakage structure includes letting out through the side wall Leakage channel and the breathable barrier for being covered on the leak, the breathable barrier are metal mesh made of metal material.

Preferably, the vibrational system includes the vibrating diaphragm for being fixed on the frame and the sound for driving the diaphragm oscillations sounding Circle, the accommodating space include positioned at first cavity of the vibrating diaphragm far from the voice coil side and being located at the vibrating diaphragm direction Second cavity of the voice coil side, the leakage path are connected to second cavity.

Preferably, the side wall includes two the first side walls being oppositely arranged and two second sidewalls being oppositely arranged, institute The length for stating the first side wall is greater than the length of the second sidewall, and the leakage structure is set to the first side wall.

Preferably, the first side wall is equipped with from its outside to inward side to the container of recess, and the leakage path is certainly The receiving trench bottom is simultaneously arranged along the recess direction of the container through the first side wall, and the breathable barrier is fixed It is contained in the container.

Preferably, the leakage path includes the through hole set on the receiving trench bottom, and the through hole is along the receipts The projection in the recess direction of tank is in rectangle.

Preferably, the through hole at least two.

It preferably, include two leakage structures in the frame, two leakage structures are respectively arranged on two institutes State the first side wall.

Preferably, two leakage structure face settings.

Preferably, the breathable barrier and the side wall pass through integrated injection molding.

Preferably, the breathable barrier is made of stainless steel material.

Compared with prior art, the microphone device of the utility model opens up the leakage path in the side wall of the frame, And it is connected to the leakage path with the sounding back cavity of the microphone device, while breathable barrier is set and is covered on the leakage Channel, to improve the acoustical behavior of the microphone device.The breathable barrier is made of high temperature resistant, indeformable stainless steel Metal mesh, in injection molding clamping process, wire side is without deformation and scald, so that the frame and the breathable barrier are integrally infused When being moulded into type, the breathable barrier is not likely to produce skew and it is avoided to block the leakage path, to improve the hair The reliability of acoustic 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 loudspeaker enclosure；

Fig. 2 is the part isometric structural exploded view of the utility model loudspeaker enclosure；

Fig. 3 is loudspeaker enclosure in Fig. 1 along the sectional view of line A-A；

Fig. 4 is the stereochemical structure sectional view of the utility model loudspeaker enclosure.

[specific embodiment]

Below in conjunction with the FIG. 1 to FIG. 4 in the utility model embodiment, to the technical scheme in the embodiment of the utility model It is clearly and completely described, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than complete The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work All other embodiment obtained is put, is fallen within the protection scope of the utility model.

Please refer to Fig. 1~3, the utility model provides a kind of microphone device 100 comprising has accommodating space 200 Frame 1, be contained in the accommodating space 200 and be individually fixed in the frame 1 vibrational system 2 and magnetic circuit system 3 and The leakage structure 4 in the frame 1.

The frame 1 includes the side wall 11 for surrounding the accommodating space 200.In present embodiment, the frame 1 is in rectangle Structure, the side wall 11 includes two the first side walls 111 being oppositely arranged and two second sidewalls 112 being oppositely arranged, described The first side wall 111 and the second sidewall 112 surround the frame 1 jointly, and the length of the first side wall 111 is greater than described the The length of two walls 112.

The vibrational system 2 includes the vibrating diaphragm 21 for being fixed on the frame 1 and the sound for driving 21 vibration sounding of vibrating diaphragm Circle 22.

The magnetic circuit system 3 generates magnetic field and 2 collective effect of vibrational system, drives institute by the magnetic circuit system 3 State 2 vibration sounding of vibrational system.The magnetic circuit system 3 include be fixed on the frame 1 magnetic bowl 31 and receiving be fixed on it is described The magnet steel 32 of magnetic bowl 31, the magnet steel 32 form magnetic gap (not labeled) with the setting of the magnetic bowl 31 interval, and the voice coil 22 is inserted And if being suspended in the magnetic gap.

The accommodating space 200 include positioned at first cavity 201 of the vibrating diaphragm 21 far from 22 side of voice coil and Positioned at the vibrating diaphragm 21 towards the second cavity 202 of 22 side of voice coil, second cavity 202 is i.e. for generating all-bottom sound Learn the sounding back cavity of performance.

As shown in Figure 3 and Figure 4, the leakage structure 4 includes being connected to through the side wall 11 and with second cavity 202 Leakage path 41 and be covered on breathable barrier 42 of the leakage path 41 far from 200 side of accommodating space.It is described Second cavity 202 is in communication with the outside by leakage path 41, for balancing 100 inside of microphone device and external sound Weighing apparatus is flattened, the shape of the leakage path 41 is unlimited.

It include two leakage structures 4 in the frame 1, two leakage structures 4 are respectively arranged on two described the One side wall 111 is set on the longer side wall of the frame 1.Certainly, in other embodiments, the knot of the frame 1 Structure is not limited to rectangle, and the leakage structure 4 also can be set in second sidewall 112, in order to keep sound pressure equalisation effect more stable, Make two 4 face of leakage structure settings.

The breathable barrier 42 is metal mesh made of metal material, and the breathable barrier 42 is obstructed for vent flow Object realizes the improvement of the frequency acoustic performance to the microphone device 100 by the setting of the breathable barrier 42.This In embodiment, the breathable barrier 42 forms fixation, the frame 1 by integrated injection molding technique with the side wall 11 It is the integrated formed structure made of injection molding process with the breathable barrier 42.

More preferably, the breathable barrier 42 is high temperature resistant, metal mesh made of indeformable stainless steel material, described In the injection molding clamping process of breathable barrier 42 and the frame 1, wire side without deformation and scald and its pore size it is constant, thus So that the breathable barrier 42, which is not likely to produce skew and can effectively avoid it, blocks the leakage path 41, and then improve institute State the reliability of microphone device 100.Moreover, the leakage structure 4 of above structure and the frame 1 are integrated injection molding structures, It is advantageously implemented automated production, improves production efficiency.

Certainly, the breathable barrier structure is not limited to wire side, and material is not limited to stainless steel, as long as can effectively avoid closing The phenomenon that skew for occurring when mould and leakage hole plug structure and material, principle it is the same.

Lead to specifically, the breathable barrier 42 is sticked to be fixed on the first side wall 111 and the leakage is completely covered Road 41.

In present embodiment, the first side wall 111 is equipped with from its outside to inward side to the container of recess 1111, institute It states leakage path 41 to be arranged through the first side wall 111, the fixation of breathable barrier 42 is contained in the container 1111 It is interior.Further, the leakage path 41 includes the through hole 411 set on 1111 bottom of container, the through hole 411 Projection along the recess direction of the container 1111 is in rectangle, and in the present embodiment, the through hole 411 is two.It should Structure makes 42 fixed effect of breathable barrier more preferable and woth no need to occupy the additional volume of the microphone device 100, outside It is good to see aesthetic feeling.In other embodiments, the through hole 411 can be one, can also more than two, the through hole 411 Projection along the recess direction of the container 1111 can also the other shapes such as rounded, triangle.

Compared with prior art, the microphone device 100 of the utility model opens up the leakage in the side wall of the frame 1 and leads to Road 41, and it is connected to the leakage path 41 and the sounding back cavity of the microphone device 2, while the lid of breathable barrier 42 is set and is set In the leakage path 41, to improve the acoustical behavior of the microphone device 100.The breathable barrier 42 be high temperature resistant, Metal mesh made of indeformable stainless steel, in injection molding clamping process, wire side is without deformation and scald, so that 1 He of the frame When 42 integrated injection molding of breathable barrier, the breathable barrier 42 is not likely to produce skew and avoids letting out described in its blocking Channel 41 is leaked, to improve the reliability of the microphone device 100.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other relevant technical fields, are also included in the patent protection scope of the utility model.

Claims (10)

1. a kind of microphone device comprising there is the frame of accommodating space, be contained in the accommodating space and be individually fixed in institute State the vibrational system and magnetic circuit system of frame, which is characterized in that the microphone device further includes the leakage in the frame Structure, the frame include the side wall for surrounding the accommodating space, the leakage structure include through the side wall leakage it is logical Road and the breathable barrier for being covered on the leak, the breathable barrier are metal mesh made of metal material.

2. microphone device according to claim 1, which is characterized in that the vibrational system includes being fixed on the frame Vibrating diaphragm and the voice coil for driving the diaphragm oscillations sounding, the accommodating space include being located at the vibrating diaphragm far from the voice coil side The first cavity and positioned at the vibrating diaphragm towards the second cavity of the voice coil side, the leakage path connection described second Cavity.

3. microphone device according to claim 1, which is characterized in that the side wall includes two the first sides being oppositely arranged Wall and two second sidewalls being oppositely arranged, the length of the first side wall are greater than the length of the second sidewall, the leakage Structure setting is in the first side wall.

4. microphone device according to claim 3, which is characterized in that the first side wall is equipped with by its outside to inward side To the container of recess, the leakage path is from the receiving trench bottom and along the recess direction of the container through described the One side wall setting, the breathable barrier fixation are contained in the container.

5. microphone device according to claim 4, which is characterized in that the leakage path includes being set to the container bottom The through hole in portion, projection of the through hole along the recess direction of the container is in rectangle.

6. microphone device according to claim 5, which is characterized in that the through hole at least two.

7. microphone device according to claim 4, which is characterized in that it include two leakage structures in the frame, Two leakage structures are respectively arranged on two the first side walls.

8. microphone device according to claim 7, which is characterized in that two leakage structure face settings.

9. microphone device according to claim 1, which is characterized in that the breathable barrier and the side wall pass through one Injection molding.

10. microphone device according to claim 1, which is characterized in that the breathable barrier is made of stainless steel material.