CN207251897U

CN207251897U - Microphone device

Info

Publication number: CN207251897U
Application number: CN201721045158.6U
Authority: CN
Inventors: 张帆; 李帅
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2017-08-21
Filing date: 2017-08-21
Publication date: 2018-04-17
Anticipated expiration: 2027-08-21

Abstract

The utility model discloses a kind of microphone device, including surrounded by side wall frame, be fixed on the frame vibrational system and magnetic circuit system, through the side wall set leak holes and the breathable barrier for being fixed on the side wall and the leak holes being completely covered that is sticked, the side of the side wall for the fixed breathable barrier that is sticked is inclined-plane, with forming angle along the plane where the short transverse of the side wall, the angle is more than 0 degree and less than 90 degree for the side.Compared with correlation technique, the microphone device acoustical behavior of the utility model is good and reliability is high.

Description

Microphone device

Technical field

Microphone device is the utility model is related to, more particularly to a kind of microphone device for applying to portable electronic product.

Background technology

During the portable equipment fast development such as mobile phone, people are more and more stronger to the Functional Requirement of product, , in order to make entertainment effect stronger, there is the pattern of music belt vibration in Music Appreciation this function for mobile phone, by This, the development of microphone device is also accordingly accelerated.

The microphone device of correlation technique includes frame, the vibrational system and magnetic circuit system of the frame, institute are fixed in support State frame to be surrounded by side wall, the side wall is equipped with the leak holes through thereon, and the microphone device, which further includes to be sticked, to be fixed on The side wall and the breathable barrier that the leak holes are completely covered.

However, with the miniaturization of product, the microphone device is required more and more thinner, and the side wall is along perpendicular Nogata is to setting so that the height of the side wall in the microphone device of correlation technique is less and less, then causes the breathable barrier Its gum width when being fixed on the side wall that is sticked is narrow, so that be easy to cause the breathable barrier fixes fastness with the side wall The phenomenon not enough to come off, directly affects the acoustical behavior of the microphone device.

Therefore, it is necessary to providing a kind of new microphone device solves above-mentioned technical problem.

Utility model content

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

The utility model provides a kind of microphone device, including surrounded by side wall frame, be fixed on the vibration of the frame System and magnetic circuit system, the leak holes set through the side wall and it is sticked and is fixed on the side wall and is completely covered the leakage The breathable barrier in hole, the side of the side wall for the fixed breathable barrier that is sticked be inclined-plane, the side and along the side wall Plane where short transverse forms angle, and the angle is more than 0 degree and less than 90 degree.

Preferably, the angle is more than or equal to 10 degree and less than or equal to 30 degree.

Preferably, the side wall is equipped with to its concave concave part in inner side, and the side is the bottom surface of the concave part, institute Breathable barrier is stated to be contained in the concave part and be fixed on the bottom surface of the concave part.

Preferably, along the side wall the close vibrational system the close magnetic circuit system from one end to the side wall One end direction, internal direction from the side to the microphone device tilt.

Preferably, the frame is rectangular, and the leak holes include two and are opened in the opposite of the frame respectively Two side walls, the breathable barrier include two and are individually fixed in two side walls, two ventilative isolation Two leak holes are completely covered in part respectively.

Preferably, the frame is rectangular, and the leak holes include two and are opened in the adjacent of the frame respectively Two side walls, the breathable barrier include two and are individually fixed in two side walls, two ventilative isolation Two leak holes are completely covered in part respectively.

Compared with prior art, the microphone device provided by the utility model is opened up the side of the side wall of leak holes Inclined-plane is arranged to, the side is formed angle with the plane where the short transverse of the side wall, when the breathable barrier is complete Leak holes described in all standing are simultaneously sticked when being fixed on the side, because the side is inclined-plane, so that in the big of the leak holes It is small it is constant in the case of so that the area bigger that is bonded with the side of the breathable barrier, the fixation for strengthening the two are strong Degree, reduces the possibility that the breathable barrier comes off, and then improve the reliability of the acoustical behavior of the microphone device And stability.

Brief description of the drawings

Fig. 1 is the dimensional structure diagram of the utility model microphone device；

Fig. 2 is the part-structure exploded view of the utility model microphone device；

Fig. 3 is the cut-away view of the line A-A along Fig. 1.

Embodiment

Below in conjunction with drawings and embodiments, the utility model is described in further detail.

Please refer to Fig.1-3, a kind of microphone device 100, including frame 1, the vibrational system 2 and magnetic that are fixed on the frame 1 Road system 3, breathable barrier 4.

The vibrational system 2 is fixed on the frame 1, specifically, the vibrational system 2 includes being fixed on shaking for frame 1 Film 21 and the voice coil loudspeaker voice coil 22 for driving the vibrating diaphragm 21 to vibrate.

The magnetic circuit system 3 is fixed on the frame 1, and electromagnetism is produced with the magnetic circuit system 3 after the energization of voice coil loudspeaker voice coil 22 Power, so as to drive 21 vibration sounding of vibrating diaphragm.

The frame 1 is surrounded by side wall 11, its shape is unlimited, can be circular or rectangle etc..In present embodiment, with institute State exemplified by frame 1 surrounds rectangle by four side walls 11 and illustrate.

Side wall 11 includes the leak holes 111 through its setting, and the leak holes 111 are used for the gas inside and outside microphone device 100 Body circulates.

The breathable barrier 4, which is sticked, is fixed on the side wall 11 equipped with the leak holes 111, and the ventilative isolation The leak holes 111 are completely covered in part 4, influence its sounding for preventing foreign matter from entering the inner cavity of the microphone device 100 Energy.

The leak holes 111 include two and are opened in opposite two side wall 11 of the frame 1 respectively；It is described Breathable barrier 4 includes two and is individually fixed in two side walls 11, and two breathable barriers 4 are completely covered respectively Two leak holes 111.

Certainly, two leak holes 111 are also not limited to be arranged at the side wall 11 of opposite two, it can also set Adjacent two side wall 11 for being placed in the frame 1, this is also feasible.

It should be noted that the quantity of the leak holes 111 is also not limited to this, as long as completely by the breathable barrier 4 coverings, this is all feasible.

In present embodiment, the side 112 of the side wall 11 for the fixed breathable barrier 4 that is sticked is inclined-plane, the side 112 along the plane where the short transverse of the side wall 11 with forming angle, wherein, the short transverse of side wall 11 is along the vibration The direction of vibration of system 2.Specifically, the angle is more than 0 degree and less than 90 degree, more preferably, the angle is more than or equal to 10 degree And less than or equal to 30 degree.

In present embodiment, along the side wall 11 the close vibrational system 2 one end to the close of the side wall 11 The direction of one end of the magnetic circuit system 3, the side 112 are tilted to the internal direction of the microphone device 100.

The ramp structure of above-mentioned side 111 is set so that the breathable barrier 4 is attached at after the side wall 11 to tilt Set.

That is, the ramp structure design of above-mentioned side 112, in the case of the size constancy of the leak holes 111, The area increase of the side 112 for the breathable barrier 4 that is sticked, so that the breathable barrier 4 and the side 112 glued area increase, imposes the fixing intensity of the two, reduces the breathable barrier 4 and come off risk, and then improve The stability and reliability of the acoustical behavior of the microphone device 100.

In present embodiment, more preferably, the side wall 11 is equipped with to its concave concave part 113 in inner side, the side 112 Then it is the bottom surface that the leak holes 111 are opened in the concave part 113 for the bottom surface of the concave part 113, the ventilative isolation Part 4 is contained in the concave part 113 and is fixed on the bottom surface of the concave part 113, while the leak holes 111 are completely covered Set.The setting of 113 structure of concave part forms the breathable barrier 4 and protects, and prevents that the breathable barrier 4 is outside Protrude from the frame 1 and knocked by other structures.

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

Claims

1. a kind of microphone device, including surrounded by side wall frame, be fixed on the frame vibrational system and magnetic circuit system, pass through Leak holes and the breathable barrier for being fixed on the side wall and the leak holes being completely covered that is sticked that the side wall is set are worn, its It is characterized in that, the side of the side wall for the fixed breathable barrier that is sticked is inclined-plane, the side and the height side along the side wall Angle is formed to the plane at place, the angle is more than 0 degree and less than 90 degree.

2. microphone device according to claim 1, it is characterised in that the angle is more than or equal to 10 degree and less than or equal to 30 Degree.

3. microphone device according to claim 1, it is characterised in that the side wall is equipped with to its concave depression in inner side Portion, the side are the bottom surface of the concave part, and the breathable barrier is contained in the concave part and is fixed on the depression The bottom surface in portion.

4. according to the microphone device described in claims 1 to 3 any one, it is characterised in that along the side wall close to described One end of vibrational system is to the direction of one end of the close magnetic circuit system of the side wall, and the side is to the microphone device Internal direction tilt.

5. microphone device according to claim 4, it is characterised in that the frame is rectangular, and the leak holes include two Opposite two side wall that is a and being opened in the frame respectively, the breathable barrier include two and are individually fixed in Two leak holes are completely covered in two side walls, two breathable barriers respectively.

6. microphone device according to claim 4, it is characterised in that the frame is rectangular, and the leak holes include two Adjacent two side wall that is a and being opened in the frame respectively, the breathable barrier include two and are individually fixed in Two leak holes are completely covered in two side walls, two breathable barriers respectively.