CN201345729Y

CN201345729Y - Micro sounding element

Info

Publication number: CN201345729Y
Application number: CNU2008202357244U
Authority: CN
Inventors: 贺晶
Original assignee: AAC Acoustic Technologies Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Changzhou Co Ltd
Priority date: 2008-12-26
Filing date: 2008-12-26
Publication date: 2009-11-11
Anticipated expiration: 2018-12-26

Abstract

The utility model relates to a micro sounding element, which comprises a basin bracket which is provided with an annular accommodating hole and a magnetic bowl which is accommodated inside the basin bracket, wherein the magnetic bowl is provided with a bottom surface, a side wall which extends from the bottom surface and an accommodating space which is formed by the bottom surface and the side wall; the magnetic bowl is also provided with an immobilization part which vertically extends in the direction away from the accommodating space; when in assembling, the side wall of the magnetic bowl is completely exposed outside the basin bracket; the micro sounding element is also provided with a hearing aid speech coil which is simultaneously pushed against the side wall and the immobilization part of the magnetic bowl. The micro sounding element has simple production, and reasonably utilizes the peripheral space of the micro sounding element, and can effectively reduce the volume of the micro sounding element; compared with the prior art, the hearing aid speech coil is directly pushed against the pushing part of the magnetic bowl, thereby increasing the height of the hearing aid speech coil, and improving the hearing aid function.

Description

Mini-sound device

[technical field]

The utility model relates to a kind of microphone device, relates in particular to a kind of mini-sound 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 miniature electro-acoustic device.

Please join shown in Figure 1, the mini-sound device 1 ' of dependency structure, it comprises body 11 ', be contained in magnetic bowl 12 ' in the body 11 ', be placed in permanent magnet 13 ' in the magnetic bowl 12 ', be arranged on voice coil loudspeaker voice coil 14 ', the vibrating diaphragm 15 ' that is connected with voice coil loudspeaker voice coil 14 ' between permanent magnet 13 ' and the magnetic bowl 12 ', cover lid 16 ' that is connected on the body 11 ' and the listening help circle 17 ' that fits in lid 16 '.Described listening help circle 17 ' sticks on the side that lid 16 ' is gone up near vibrating diaphragm 15 ' by glue.

Listening help circle 17 ' is the service function that provides for the dysaudia personage, and the alternating electromagnetic field and the induction of the hearing aids in Hearing Impaired's ear that utilize listening help circle 17 ' to produce can help the Hearing Impaired to hear sound.

The mini-sound device 1 ' of dependency structure, listening help circle 17 ' is fixed on the lid 16 ' by glue.It is very big that the evenness of this kind design listening help circle 17 ' is influenced by gluing technique, easily causes listening help circle 17 ' to tilt when gluing technique is unstable, influences vibrating diaphragm 15 ' normal vibration and cause pure tone bad.And listening help circle 17 ' is fixed on the lid 16 ' by glue, taken the inner very big space of mini-sound device 1 ', causes the volume of mini-sound device 1 ' very big.

For addressing the above problem, the mini-sound device 2 ' of another kind of dependency structure, it comprises basin frame 21 ', be contained in the magnetic bowl 22 ' in the basin frame 21 ', be placed in the permanent magnet 23 ' in the magnetic bowl 22 ', be arranged on the voice coil loudspeaker voice coil 24 ' between permanent magnet 23 ' and magnetic bowl 22 ', the vibrating diaphragm 25 ' that is connected with voice coil loudspeaker voice coil 24 ', lid is connected to the loam cake 26 ' of basin frame 21 ', wherein, the sidewall 222 ' that magnetic bowl 22 ' is provided with bottom surface (not label) and extends from the bottom surface, described sidewall 222 ' is divided into the first side wall 223 ' that is immobilizated on the basin frame 21 ' and second sidewall 224 ' that does not contact with basin frame 21 '.In addition, this mini-sound device 2 ' also is provided with the listening help circle 27 ' that is immobilizated on second sidewall 224 '.

Yet the mini-sound device 2 ' of said structure is subjected to the restriction in space, and the height of listening help circle 27 ' is less, thereby influences hearing-aid function.

Therefore be necessary the mini-sound device of dependency structure is improved in fact.

[utility model content]

The purpose of this utility model is to provide the mini-sound device that a kind of hearing aid effect is good, timbre is good.

The purpose of this utility model is achieved in that a kind of mini-sound device, it comprises the basin frame that is provided with annular accepting hole, be contained in the magnetic bowl in the basin frame, be placed in the permanent magnet in the magnetic bowl, be arranged on the voice coil loudspeaker voice coil between permanent magnet and magnetic bowl, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil, lid is connected to the loam cake of basin frame, wherein, the magnetic bowl is provided with the bottom surface, sidewall that extends from the bottom surface and the receiving space that forms jointly by bottom surface and sidewall, wherein, described magnetic bowl also is provided with from its sidewall to away from the vertically extending holding parts of receiving space, and described mini-sound device also is provided with the sidewall that is connected to the magnetic bowl simultaneously and the listening help circle of holding parts.

Compared with prior art, mini-sound device of the present utility model is made simply, has reasonably utilized mini-sound device space on every side, can effectively reduce the volume of mini-sound device; Compare with correlation technique, the direct butt of listening help circle can increase the height of listening help circle to the abutting part of magnetic bowl, thereby improves hearing-aid function.

[description of drawings]

Fig. 1 is the phantom of correlation technique mini-sound device.

Fig. 2 is the cutaway view of another kind of correlation technique mini-sound device.

Fig. 3 is the three-dimensional exploded view of the utility model mini-sound device.

Fig. 4 is the three-dimensional exploded view at another visual angle of the utility model mini-sound device.

Fig. 5 is the utility model mini-sound device part exploded view.

Fig. 6 is the cutaway view of the utility model mini-sound device.

[embodiment]

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

Please join Fig. 3-Fig. 6, the utility model mini-sound device 100, its involving vibrations system 1, magnetic circuit system 2 and auxiliary system (not indicating), 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 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; Auxiliary system comprises basin frame 31, loam cake 32, conducting terminal 33 and listening help circle 34.

Vibrating voice coil 12 its insulating barriers (not indicating) of being located at the sheet metal periphery by continuous sheet metal (not indicating) and bag are formed.The section of this sheet metal is that helical form is twined, integral body is tubular.Described vibrating voice coil 12 comprises annulus 121 and the free lead wire 122 of drawing from annulus 121.Vibrating voice coil 12 links together with the mode of vibrating diaphragm 11 by gummed.

Magnetic bowl 21 is provided with bottom surface 211, from the bottom surface 211 sidewalls 212 that extend, the receiving spaces 213 that form jointly by bottom surface 211 and sidewall 212 and from sidewall 212 to away from receiving space 213 vertically extending holding parts 214, wherein, holding parts 214 is provided with abutting part 215 that connects with listening help circle 34 and the location division 216 of extending on abutting part 215, this location division 216 is provided with first location division 217 of some circular arcs and is clipped in second location division 218 that slightly is square of 217 of two first location divisions.

Described permanent magnet 22 is contained in the receiving space 213 of magnetic bowl 21.

Basin frame 31 is the cuboid of hollow, and it is formed by annular accepting hole 311 with around the main part 312 of this annular accepting hole 311, main part 312 be provided with close vibrating diaphragm 11 upper surface 313 and with upper surface 313 opposing lower surface 314.The lower surface 314 of autonomous body 312 is to be extended with some supporting walls 315 away from main part 312.Described supporting walls 315 is slightly larger than the thickness of listening help circle 34 to the distance of the outer surface of the sidewall 212 of magnetic bowl 21.This supporting walls 315 can be used for locating listening help circle 34 on the one hand, can prevent that on the other hand external force from causing damage to listening help circle 34.Be extended with the fixed part 316 of fixing loam cake 32 near a side direction main part 312 of upper surface 313 from annular accepting hole 311.Be extended with the location notch 317 of the location division 216 of accommodating magnetic bowl 21 from annular accepting hole 311 to the middle part of main part 312, described location notch 317 is provided with first location notch 3171 of some arcuations and is clipped in second location notch 3172 that slightly is square of 3171 of two first location notchs.

Loam cake 32 is stamped to form by sheet metal, and it is provided with flat part 321 and from flat part 311 outward extending plurality of fixed sheets 322, this stator 322 can be held on the fixed part 316 of basin frame 31.

Listening help circle 34 also is made up of the insulating barrier (sign) that continuous sheet metal (indicate) and bag are located at sheet metal 33 peripheries.It is provided with two second lead-in wires 341, the inner ring 342 that links to each other with the sidewall 212 of magnetic bowl 21, the outer ring 343 and the connecting portion 345 that be connected inner ring 342 and outer ring 343 relative with inner ring 342.During assembling, described outer ring 343 can with supporting walls 315 butts of basin frame 31; Described connecting portion 345 is connected to the abutting part 215 on the fixed part 214 of magnetic bowl 21.

The mini-sound device 100 of this structure, vibrating voice coil 12 place in the magnetic circuit system 2 and when feeding the alternation tone currents, vibrating voice coil 12 is subjected to the motive force of an alternation, produces alternate motion, thereby drives vibrating diaphragm 11 vibrations, sounds.The alternating electromagnetic field that listening help circle 34 can produce, this alternating electromagnetic field can be responded to the hearing aids in Hearing Impaired's ear, helps the Hearing Impaired to hear sound.

During assembling, at first that the location division 216 of magnetic bowl 21 is one-body molded with basin frame 31, the sidewall 212 of magnetic bowl 21 and abutting part 215 all are exposed to outside the basin frame 31 like this, secondly permanent magnet 22 and pole piece 23 are placed in the magnetic bowl 21, the vibrating diaphragm 11 that will be fitted with vibrating voice coil 12 then is connected to the upper surface 313 of the main part 312 of basin frame 31, and the stator 322 of loam cake 32 is held on the fixed part 316 of basin frame 31; Inner ring 342 with listening help circle 34 links to each other with the sidewall 212 of magnetic bowl 21 at last, and the connecting portion 345 of listening help circle 34 is connected on the abutting part 215 of magnetic bowl 21; Make the outer ring 343 of listening help circle 34 be connected to the supporting walls 315 of basin frame 31 simultaneously.

In addition, the location division 216 of magnetic bowl 21 can also link to each other with the basin frame by the mode of gummed.

Mini-sound device 100 of the present utility model, the holding parts 214 of magnetic bowl 21 combines with basin frame 31, make listening help circle 34 linking to each other also be connected to simultaneously on the abutting part 215 of magnetic bowl 21 with sidewall 212 magnetic bowl 21, this kind manufactures and designs simply, reasonably utilize mini-sound device 100 space on every side, can effectively reduce the volume of mini-sound device 100; Compare with correlation technique, listening help circle 34 direct butts can increase the height of listening help circle 34 like this to the abutting part 215 of magnetic bowl 21, thereby improve hearing-aid function.In addition, the structure of the utility model mini-sound device 100 can not influence the operate as normal of listening help circle 34.

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, a kind of mini-sound device, it comprises the basin frame that is provided with annular accepting hole, be contained in the magnetic bowl in the basin frame, be placed in the permanent magnet in the magnetic bowl, be arranged on the voice coil loudspeaker voice coil between permanent magnet and magnetic bowl, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil, lid is connected to the loam cake of basin frame, wherein, the magnetic bowl is provided with the bottom surface, sidewall that extends from the bottom surface and the receiving space that forms jointly by bottom surface and sidewall, it is characterized in that: described magnetic bowl also is provided with from its sidewall to away from the vertically extending holding parts of receiving space, and described mini-sound device also is provided with the sidewall that is connected to the magnetic bowl simultaneously and the listening help circle of holding parts.

2, mini-sound device as claimed in claim 1 is characterized in that: described holding parts is provided with abutting part that connects with listening help circle and the location division of extending on abutting part.

3, mini-sound device as claimed in claim 2 is characterized in that: described location division is provided with first location division of some circular arcs and is clipped in second location division between two first location divisions.

4, mini-sound device as claimed in claim 3, it is characterized in that: described basin sets up the main part around annular accepting hole, this main part be provided with near the upper surface of vibrating diaphragm, with the upper surface opposing lower surface, this lower surface is to be extended with some supporting walls away from main part certainly.

5, mini-sound device as claimed in claim 4 is characterized in that: described basin has set up fixed part, on be covered with the stator that can be held on this fixed part.