CN201438759U

CN201438759U - Sounder

Info

Publication number: CN201438759U
Application number: CN200920132847XU
Authority: CN
Inventors: 查宇斌
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Acoustic Technologies Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd; AAC Technologies Holdings Changzhou Co Ltd
Priority date: 2009-06-12
Filing date: 2009-06-12
Publication date: 2010-04-14
Anticipated expiration: 2019-06-12

Abstract

The utility model relates to a sounder, which comprises a sounder cavity and a sounder monomer that is contained in the cavity; the sounder monomer comprises a magnetic circuit system and a vibration system, wherein the magnetic circuit system is provided with a through hole that is penetrated on the magnetic circuit system; the sounder cavity is provided with a first sound making hole used for transmitting sound out of the through hole; and air current is communicated between the first sound making hole and the through hole. The sounder can improve the height of the sounder monomer as far as possible by changing the sound making direction and by making full use of the space of the sounder cavity, so as to improve the performance of the sounder.

Description

Microphone device

[technical field]

The utility model relates to a kind of microphone device.

[background technology]

In the process of portable equipment fast developments such as mobile phone, people are more and more stronger to the functional requirement of product, for this function of Music Appreciation of mobile phone, in order to make entertainment effect stronger, the pattern that the music belt vibration occurred, thus, the also corresponding quickening of the development of microphone device.

The microphone device of dependency structure, it comprises the acoustical generator cavity and is contained in the interior acoustical generator monomer of acoustical generator cavity, described acoustical generator monomer comprises that magnetic bowl, lid are connected to the lid on the magnetic bowl and are contained in magnetic bowl interior magnetic circuit system and vibrational system, wherein, vibrational system is provided with vibrating diaphragm and the voice coil loudspeaker voice coil that links to each other with vibrating diaphragm, and lid is provided with phonate hole.

The microphone device of dependency structure, is voice directions with vibrating diaphragm towards the direction of lid, but because acoustical generator inside cavity space is limited, and the acoustical generator cavity is very big in the diverse location varied in thickness, if is voice directions with vibrating diaphragm towards the direction of lid, for vibration stays enough spaces to vibrating diaphragm, can only reduce the height of acoustical generator monomer, this way certainly will influence the performance of microphone device.

Therefore be necessary the microphone device of dependency structure is improved in fact.

[utility model content]

The purpose of this utility model is to provide a kind of microphone device of function admirable.

The purpose of this utility model is achieved in that a kind of microphone device, it comprises the acoustical generator cavity and is contained in the interior acoustical generator monomer of this cavity, described acoustical generator monomer comprises magnetic circuit system and vibrational system, wherein, described magnetic circuit system is provided with the through hole that runs through on it, described acoustical generator cavity is provided with first phonate hole that sound is spread out of from described through hole, and air-flow communicates between this first phonate hole and the described through hole.

Preferably, described acoustical generator cavity is provided with sidewall, the lid host cavity that is connected to diapire on the sidewall and loam cake and formed jointly by described sidewall, diapire and loam cake respectively, be extended with the supporting walls that supports vibrating diaphragm in sidewall in host cavity, the upper limb near vibrating diaphragm on described supporting walls is provided with some second phonate holes that extend and run through this supporting walls from host cavity to described supporting walls.

Preferably, described first phonate hole links to each other with second phonate hole.

Preferably, described vibrational system is provided with magnetic bowl, permanent magnet and pole piece, and described through hole runs through magnetic bowl, permanent magnet and the pole piece of magnetic circuit system simultaneously.

Preferably, the sidewall that described magnetic bowl is provided with the bottom surface and extends from the bottom surface, the described passage of speaking runs through the bottom surface of magnetic bowl.

Compared with prior art, microphone device of the present utility model by change the sound sender to, under the space that makes full use of the acoustical generator cavity, the height of the acoustical generator monomer that can as far as possible improve, thereby improve the performance of microphone device.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of the utility model microphone device;

Fig. 2 is the cutaway view of the utility model microphone device;

Fig. 3 is the stereogram of the utility model microphone device.

[embodiment]

Describe the concrete structure of the utility model microphone device 100 in detail below in conjunction with accompanying drawing.

Please join Fig. 1-Fig. 3, the utility model microphone device 100, the acoustical generator cavity 4 that it comprises acoustical generator monomer 10 and accommodates this acoustical generator monomer 10, described acoustical generator monomer 10 is provided with vibrational system 1 and magnetic circuit system 2, wherein, vibrational system 1 comprises vibrating diaphragm 11 and the vibrating voice coil 12 that links to each other with vibrating diaphragm 11; Magnetic circuit system 2 is provided with the through hole 25 that runs through on it.

Acoustical generator cavity 4 is provided with sidewall 41, the lid host cavities 44 that are connected to diapire 42 on the sidewall 41 and loam cake 43 and formed jointly by described sidewall 41, diapire 42 and loam cake 43 respectively, and wherein sidewall 41 is provided with first phonate hole 45 that sound is spread out of from described through hole 25.Sidewall 41 in acoustical generator cavity 4 is extended with the supporting walls 51 that supports vibrating diaphragm 11 and magnetic circuit system 2 simultaneously in host cavity 44, be provided with from host cavity 44 near the upper limb of vibrating diaphragm 11 on this supporting walls 51 and extend and run through some second phonate holes 52 of this supporting walls 51 to described supporting walls 51, this second phonate hole 52 links to each other with first phonate hole 45.

Magnetic circuit system 2 comprises magnetic bowl 21, be contained in the permanent magnet 22 in the magnetic bowl 21 and place pole piece 23 on the permanent magnet 22.Described 25 whiles of through hole are through magnetic bowl 21, permanent magnet 22 and the pole piece 23 of magnetic circuit system 2.Wherein, magnetic bowl 21 be provided with bottom surface 211,211 sides 212 of extending and the receiving spaces 213 that form jointly by bottom surface 211 and side 212 from the bottom surface.Described through hole 25 runs through the bottom surface 211 of magnetic bowl 21, and air-flow communicates between this through hole 25 and described first phonate hole 45, and in like manner, air-flow also 4 communicates between this through hole 25 and described second phonate hole 52.

Microphone device of the present utility model, magnetic circuit system is provided with the through hole that runs through on it, the acoustical generator cavity is provided with first phonate hole that sound is spread out of from described through hole, make sound send towards the direction of magnetic circuit system from vibrating diaphragm, by changing the voice directions of microphone device, under the space that makes full use of the acoustical generator cavity, the height of the acoustical generator monomer that can as far as possible improve, thus improve the performance of microphone device; The setting of second phonate hole can strengthen the area of speaking; Vibrating diaphragm and magnetic circuit system are fixed on the acoustical generator cavity simultaneously, can utilize the space of acoustical generator cavity more fully, the performance of microphone device.

The above only is a better embodiment of the present utility model; protection range of the present utility model does not exceed with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.

Claims

1. microphone device, it comprises the acoustical generator cavity and is contained in the interior acoustical generator monomer of this cavity, described acoustical generator monomer comprises magnetic circuit system and vibrational system, it is characterized in that: described magnetic circuit system is provided with the through hole that runs through on it, described acoustical generator cavity is provided with first phonate hole that sound is spread out of from described through hole, and air-flow communicates between this first phonate hole and the described through hole.

2. microphone device as claimed in claim 1, it is characterized in that: described acoustical generator cavity is provided with sidewall, the lid host cavity that is connected to diapire on the sidewall and loam cake and formed jointly by described sidewall, diapire and loam cake respectively, be extended with the supporting walls that supports vibrating diaphragm in sidewall in host cavity, the upper limb near vibrating diaphragm on described supporting walls is provided with some second phonate holes that extend and run through this supporting walls from host cavity to described supporting walls.

3. microphone device as claimed in claim 2 is characterized in that: described first phonate hole links to each other with second phonate hole.

4. microphone device according to claim 3 is characterized in that: described vibrational system is provided with magnetic bowl, permanent magnet and pole piece, and described through hole runs through magnetic bowl, permanent magnet and the pole piece of magnetic circuit system simultaneously.

5. microphone device according to claim 4 is characterized in that: the sidewall that described magnetic bowl is provided with the bottom surface and extends from the bottom surface, the described passage of speaking runs through the bottom surface of magnetic bowl.