CN107454522A

CN107454522A - Microphone device

Info

Publication number: CN107454522A
Application number: CN201710667640.1A
Authority: CN
Inventors: 吴树文
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2017-08-07
Filing date: 2017-08-07
Publication date: 2017-12-08
Anticipated expiration: 2037-08-07
Also published as: CN107454522B

Abstract

The present invention disclose a kind of microphone device, including surrounded by side wall frame, vibrational system and magnetic circuit system, the leak including at least one leak through side wall setting, be sticked and be fixed on the side-wall outer side and the breathable barrier of the leak is completely covered and is fixed on the tabletting of the frame；The tabletting includes the supporting part for being fixed on the main part of the close magnetic circuit system side of the frame and extension being bent by the main part, the main part is connected to the magnetic circuit system, the supporting part is provided with through the through hole coordinated thereon and with the leak, and the supporting part abuts pressure located at the side of the remote side wall of the breathable barrier and the through hole is set with the leak face.Compared with correlation technique, microphone device acoustical behavior of the invention is good, reliability is high and efficiency of assembling is high.

Description

Microphone device

Technical field

The present invention relates to electroacoustic switch technology field, more particularly to a kind of acoustical generator for applying to portable type electronic product Part.

Background technology

During the portable equipment fast development such as mobile phone, people are more and more stronger to the Functional Requirement of product, Music Appreciation this function for mobile phone, in order that entertainment effect is stronger, there is the pattern of music belt vibration, 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 provided with the leak through thereon, and the microphone device also includes pasting by gum If mode be fixed on the side wall and the breathable barrier of the leak be 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 Be sticked its gum narrow width when being fixed on the side wall, and fastness is fixed with the side wall so as to easily cause the breathable barrier The phenomenon not enough to come off, directly affect the acoustical behavior of the microphone device.

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

The content of the invention

The purpose of the present invention is to overcome above-mentioned technical problem, there is provided the acoustical generator that a kind of acoustical behavior is good and reliability is high Part.

The present invention provides a kind of microphone device, including surrounded by side wall frame, be fixed on the frame and with the basin Frame surrounds the vibrational system of confined space and magnetic circuit system, through what the side wall was set includes at least one leak jointly Leak, it is sticked and is fixed on the side-wall outer side and the breathable barrier of the leak is completely covered and is fixed on the basin The tabletting of frame；The tabletting includes being fixed on the main part of the close magnetic circuit system side of the frame and by the main body The supporting part of portion's bending extension, the main part are connected to the magnetic circuit system, the supporting part be provided with through thereon and with institute The through hole of leak cooperation is stated, the supporting part abuts pressure located at the side of the remote side wall of the breathable barrier and made The through hole is set with the leak face.

Preferably, the side wall includes the first wall along the direction of vibration setting of the vibrational system, by first wall Top bend the second wall of extension and by second wall along the vibrational system to the direction away from the vibrational system Direction of vibration bending extension the 3rd wall, the leak through second wall setting；The supporting part will be described ventilative Separator pressure is located at second wall, and the vibrational system is fixed on the 3rd wall, and the magnetic circuit system is fixed on described the One wall.

Preferably, second wall is set perpendicular to the direction of vibration of the vibrational system.

Preferably, the tabletting is magnetic stainless steel tabletting.

Preferably, the leak includes at least two leak that is set in distance, on the supporting part The through hole and the supporting setting of the leak.

Preferably, the leak includes five leaks.

Preferably, the frame is rectangular configuration, and the leak includes at least two and is respectively arranged on the frame With respect to two side walls；The breathable barrier includes two, and the supporting part includes two and respectively by the main part Opposite sides extend to be formed, two breathable barriers phase by two supporting parts pressures located at the frame respectively To two side walls of setting, and all leaks that the side is kept away are completely covered in each breathable barrier.

Preferably, two leaks are respectively arranged on relative two side walls parallel to major axis of the frame.

Preferably, the frame is rectangular configuration, and the leak includes at least two and is respectively arranged on the frame The two neighboring side wall, the breathable barrier include two, and the supporting part includes two and respectively by the main part Adjacent both sides extend to be formed, two breathable barriers phase by two supporting parts pressures located at the frame respectively Two side walls that neighbour is set, and all leaks that the side is kept away are completely covered in each breathable barrier.

Compared with prior art, the tabletting that the microphone device provided by the invention is set includes main part and by main part Extend the supporting part formed, the frame is fixed on by the main part and is fixed on the whole tabletting so as to realize Breathable barrier tabletting in the side wall of the frame and is completely covered the breathable barrier by frame, the supporting part The leak, so as to realize the fixation of the breathable barrier, the structure will lack point welding process, and assembling speed is fast, greatly Degree strengthens the fixing intensity and reliability that the breathable barrier is fixed on the side wall, reduces the breathable barrier The possibility to come off, and then improve the reliability and stability of the acoustical behavior of the microphone device.

Brief description of the drawings

Fig. 1 is the dimensional structure diagram of microphone device of the present invention；

Fig. 2 is the part-structure exploded view of microphone device of the present invention；

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

Embodiment

Below in conjunction with drawings and embodiments, the invention will be further described.

Fig. 1-3 are referred to, the invention provides a kind of microphone device 100, including frame 1, are fixed on shaking for the frame Dynamic system 2 and magnetic circuit system 3, breathable barrier 4 and tabletting 5.

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 magnetic field is produced with the magnetic circuit system 3 after the energization of voice coil loudspeaker voice coil 22, So as to drive the vibration sounding of vibrating diaphragm 21.

In present embodiment, the frame 1 is surrounded by side wall 11, and its shape is unlimited, can be circular or rectangle etc..

In present embodiment, illustrate so that the frame 1 surrounds rectangle by four side walls 11 as an example.

The side wall 11 is included through the leak 111 for being used to balance the acoustic pressure of the microphone device 100 set thereon, The leak comprises at least a leak 1111.In present embodiment, the leak 111 includes what is be mutually set in distance At least two leaks 1111, such as, the specific leak 1111 that five spaced settings are set.Certainly, institute The quantity not limited to this of leak 1111 is stated, its shape is also unlimited, can be circular, rectangle or ellipse etc..

The frame 1 is fixed in the tabletting 5.Specifically, the tabletting 5 includes being fixed on the close institute of the frame 1 State the main part 51 of the side of magnetic circuit system 3 and the supporting part 52 of extension is bent by the main part 51.

The main part 51 is connected to the magnetic circuit system 3, and fixed support is formed to the magnetic circuit system 3.

The supporting part 52 is provided with through the through hole 521 coordinated thereon and with the leak 1111, the supporting part 52 Pressure is abutted located at the side of the remote side wall 11 of the breathable barrier 4 and makes the through hole 521 and the leak 1111 faces are set.When being arranged on assembling of the structure, when fixing the main part 51, while realize that supporting part 52 abuts pressure and set In the breathable barrier 4, reduce point welding process, improve efficiency of assembling.

In present embodiment, the leak 111 includes at least two and is respectively arranged on relative two institutes of the frame 1 State side wall 11.Supporting, the breathable barrier 4 includes two.The supporting part 52 includes two and respectively by the main body The opposite sides in portion 51 extends to be formed.

Two breathable barriers 4 are fixed on being oppositely arranged for the frame 1 by two supporting parts 52 respectively Two side walls 11, and all leaks 1111 that the side is kept away on 11 are completely covered in each breathable barrier 4.

Specifically, two leaks 111 are respectively arranged on relative two sides parallel to major axis of the frame 1 Wall 11.

Certainly, two leaks 111 can also be respectively arranged on be disposed adjacent two side walls of the frame 1 11, this is also feasible, includes two and respectively by the adjacent both sides of the main part 51 extended to be formed by the supporting part 52, Its principle is consistent with the above, is not repeating herein.

The breathable barrier 4, which is sticked, is fixed on the side wall 11 provided with the leak 111, and the ventilative isolation The leak 1111 is completely covered in part 4, influences its sounding for preventing foreign matter from entering the inner chamber of the microphone device 100 Energy.

More excellent in present embodiment, the side wall 11 includes first set along the direction of vibration of the vibrational system 2 Wall 11a, from the top of the first wall 11a to away from the vibrational system 2 direction bend extension the second wall 11b and by 3rd wall 11c of direction of vibration bending extensions of the second wall 11b along the vibrational system 2.More excellent, second wall 11b is set perpendicular to the direction of vibration of the vibrational system 2.I.e. described second wall 11b is set in horizontal plane direction.

Corresponding, the tabletting 5 also includes the wall extension 53 extended by main part 51, and the supporting part 52 is by the extension Wall extends to be formed.

The leak 111 is set through the second wall 11b；The supporting part 52 of the tabletting 5 will be described ventilative The pressure of separator 4, which is set, is fixed on the second wall 11b；The vibrational system 2 is fixed on the 3rd wall 11c, the magnetic circuit system 3 It is fixed on the first wall 11a.

Because the second wall 11b is horizontally disposed, the leakage through the second wall 11b is opened up thereon During portion 111, the space of the Sidewall Height without taking the microphone device 100, there is the thinning using the microphone device 100 to set Meter.

The tabletting 5 is made up of magnetic conductive metal material, and in present embodiment, the tabletting 5 is specially magnetic stainless steel pressure Piece.

Because the tabletting 5 the supporting part 52 be provided with through thereon and with the through hole of the 1111 supporting setting of leak 521.That is, the quantity of the through hole 521 is set as the quantity of the leak 1111, certainly, its shape also may be used It is set to the same.

The through hole 51 is set with the face of leak 1111, so that the leak 1111 realizes normal equilibrium sound Pressure.

Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims

1. a kind of microphone device, including surrounded by side wall frame, be fixed on the frame and surrounded jointly with the frame close Close the vibrational system in space and magnetic circuit system, the leak including at least one leak that is set through the side wall and be sticked It is fixed on the side-wall outer side and the breathable barrier of the leak is completely covered, it is characterised in that the microphone device is also Tabletting including being fixed on the frame, the tabletting include being fixed on the master of the close magnetic circuit system side of the frame Body portion and the supporting part that extension is bent by the main part, the main part are connected to the magnetic circuit system, and the supporting part is set Have through the through hole coordinated thereon and with the leak, the supporting part abuts remote institute of the pressure located at the breathable barrier State the side of side wall and make the through hole and the leak airflow connection.

2. microphone device according to claim 1, it is characterised in that the side wall includes the vibration along the vibrational system Direction set the first wall, from the top of first wall to away from the vibrational system direction bend extension the second wall with And the 3rd wall of extension is bent by direction of vibration of second wall along the vibrational system, the leak runs through described second Wall is set；Breathable barrier pressure is located at second wall by the supporting part, and the vibrational system is fixed on the described 3rd Wall, the magnetic circuit system are fixed on first wall.

3. microphone device according to claim 2, it is characterised in that the second wall shaking perpendicular to the vibrational system Dynamic direction is set.

4. microphone device according to claim 3, it is characterised in that the tabletting is magnetic stainless steel tabletting.

5. microphone device according to claim 4, it is characterised in that the leak includes at least two to be set in distance The individual leak, the through hole and the supporting setting of the leak on the supporting part.

6. microphone device according to claim 5, it is characterised in that the leak includes five leaks.

7. microphone device according to claim 6, it is characterised in that the frame is rectangular configuration, the leak bag Include at least two and be respectively arranged on relative two side walls of the frame；The breathable barrier includes two, the branch Support part includes two and respectively by the opposite sides of the main part extended to be formed, and two breathable barriers pass through two respectively The individual supporting part pressure is located at be oppositely arranged two side walls of the frame, and each breathable barrier is covered completely Cover all leaks that the side is kept away.

8. microphone device according to claim 7, it is characterised in that two leaks are respectively arranged on the frame Parallel to relative two side walls of major axis.

9. microphone device according to claim 6, it is characterised in that the frame is rectangular configuration, the leak bag Include at least two and be respectively arranged on the two neighboring side wall of the frame, the breathable barrier includes two, the branch Support part includes two and respectively by the adjacent both sides of the main part extended to be formed, and two breathable barriers pass through two respectively The individual supporting part pressure is located at be disposed adjacent two side walls of the frame, and each breathable barrier is covered completely Cover all leaks that the side is kept away.