CN201491254U - Minisize electroacoustic converter - Google Patents
Minisize electroacoustic converter Download PDFInfo
- Publication number
- CN201491254U CN201491254U CN2009201348384U CN200920134838U CN201491254U CN 201491254 U CN201491254 U CN 201491254U CN 2009201348384 U CN2009201348384 U CN 2009201348384U CN 200920134838 U CN200920134838 U CN 200920134838U CN 201491254 U CN201491254 U CN 201491254U
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- CN
- China
- Prior art keywords
- voice coil
- basin frame
- circuit system
- magnetic steel
- magnetic circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to the field of electroacoustic sound production, in particular to a minisize electroacoustic converter with a poke-yoke structure, comprising a basin frame, a magnetic circuit system positioned in the basin frame, a voice coil and a vibrating diaphragm connected with the voice coil. The magnetic circuit system comprises a splint, inner magnetic steel positioned at the center of the splint face and strip-shaped outer magnetic steel which is arranged at the two sides of the inner magnetic steel and forms a magnetic gap. An inclined plane connected with the side wall of the outer magnetic steel is arranged in the direction of the side wall of the outer magnetic steel and can form a dip angle with the opposite side wall, therefore, the outer magnetic steel has a poke-yoke dip angle, the wrong assembly of the outer magnetic steel can be avoided according to the condition that whether a dip angle exists or not in assembly, and the production efficiency is improved.
Description
[technical field]
The utility model relates to a kind of electroacoustic energy sounding field, refers to that specifically a kind of miniature electro-acoustic of error-proof structure can transducer.
[background technology]
Development along with wireless telecommunications, Global Mobile Phone Users is more and more, the user not only is satisfied with conversation to the requirement of mobile phone, and want high-quality communication effect can be provided, especially at present the development of mobile multimedia technology, the speech quality of mobile phone becomes more important, and the microphone of mobile phone is as the voice pick device of mobile phone, and its design quality directly influences speech quality.
At present miniature microphone device comprises the loam cake that has the basin frame of accommodating cavity, joins with the basin frame and be provided with hole, and basin frame and loam cake form a cavity volume.Be provided with the magnetic circuit system, the magnetic circuit system that are contained in the basin frame in this cavity volume and be provided with the voice coil loudspeaker voice coil that is connected with vibrating diaphragm, voice coil loudspeaker voice coil is suspended in the magnetic gap of described magnetic circuit system; Magnetic circuit system is made up of the magnet steel of clamping plate, sheet, and the bottom of basin frame is provided with the circuit board that realization links to each other with external circuit, the passing the hole that the basin frame is provided with into and out of line and link to each other with circuit board of voice coil loudspeaker voice coil.When feeding the alternation tone currents on circuit board, voice coil loudspeaker voice coil is subjected to the motive force of alternation in magnetic gap, produces alternate motion, thereby drives the vibrating diaphragm vibration, sounds.
The magnetic circuit system of this structure mini microphone device is generally by the clamping plate of metal material, and the outer steel and the interior magnet steel that are assemblied on the clamping plate constitute; The size that is limited to basin frame internal cavities, outer steel is generally the magnet of strip, the size basically identical of height and width, be difficult for distinguishing one from the other, yet the magnet steel on the clamping plate has the requirement of magnetic pole when assembling, do not allow the deviation that occurs assembling, otherwise will influence the performance of voice coil loudspeaker voice coil, cause the serious distortion of sound, cause product reliability low, thereby be necessary to study a kind of electroacoustic energy microphone device with new construction.
[utility model content]
The magnet steel assembling is prone to the problem of error to the utility model in the existing miniature electro-acoustic energy transducer magnetic circuit system at solving, and a kind of miniature electro-acoustic energy transducer with error-proof structure is provided.
The utility model miniature electro-acoustic energy transducer, comprise a basin frame, be arranged in basin frame internal magnetic circuit system, be suspended at the voice coil loudspeaker voice coil of magnetic circuit system, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil, wherein magnetic circuit system comprises clamping plate, is positioned at the magnet steel of clamping plate face center and is located at the magnet steel both sides and constitutes the strip outer steel of magnetic gap with magnet steel, outer steel offers the inclined plane on the side of basin frame madial wall direction, and constitutes the inclination angle with relative sidewall.
Preferably, described inclination angle is opened in the end of outer steel.
Described inclined plane is located at the place, two ends of outer steel sidewall direction and is connected with sidewall.
The utility model miniature electro-acoustic energy transducer, comprise the basin frame, be positioned at basin frame internal magnetic circuit system, voice coil loudspeaker voice coil, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil, wherein magnetic circuit system comprises clamping plate, is positioned at the magnet steel of clamping plate face center and is located at the magnet steel both sides and constitute the strip outer steel of magnetic gap, the outer steel sidewall direction is provided with the inclined plane that links to each other with sidewall, can constitute the inclination angle with relative sidewall, outer steel just has the inclination angle of fool proof like this, when assembling, can enhance productivity according to aclinal being arranged to stop the outer steel loading error.
[description of drawings]
Fig. 1 is a blast structural representation of the present utility model;
Fig. 2 is the structure for amplifying schematic diagram of A portion among Fig. 1;
Fig. 3 is the structural representation that the utility model basin frame combines with magnetic circuit system.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, be the first embodiment of the present utility model structural representation that explodes.It comprises the basin frame 40 of accommodating the required element of this microphone device, be attached to vibration unit 20 on the basin frame 40, and drive the magnetic circuit system 30 of vibration unit 20 motions; Vibration unit comprises vibrating diaphragm, voice coil loudspeaker voice coil, magnetic circuit system 30 comprise the metal material that does not seal clamping plate 31, be positioned at the magnet steel 32 of 31 centers of clamping plate and be located at magnet steel 32 both sides and constitute the strip outer steel 33 of magnetic gap; Voice coil loudspeaker voice coil connects the circuit board of the external application electric connection of basin frame 40 bottoms, and circuit board and external circuit are electrical connected to realize the input audio electrical signal, also are provided with the lid 10 that connects basin frame 40 above vibration unit.When feeding the alternation tone currents on circuit board, voice coil loudspeaker voice coil is subjected to the motive force of alternation in magnetic circuit system 30, produces alternate motion, thereby drives vibrating diaphragm vibration at a high speed, sounds.
As shown in Figure 2, be the structure for amplifying schematic diagram of A portion among Fig. 1; Magnetic circuit system 30 middle clamp plates 31 upper surfaces assembling outer steel 33, two outer steels 33 of this fact Example assembling; Outer steel 33 is 331 towards the nearest side of basin frame 40 madial wall directions, the direction of both ends of outer steel 33 sides 331 is provided with the inclined plane 332 that is attached thereto, like this, just can discern the installed surface of outer steel 33 by inclined plane 332, four faces of outer steel can not occur and obscure the phenomenon of assembling, reach the purpose of fool proof.
In conjunction with shown in Figure 3, the structural representation that combines with magnetic circuit system for the utility model basin frame, magnetic circuit system 30 is positioned at the cavity of basin frame 40, two of magnetic circuit system outer steel 33a wherein, 33b is close to respectively on the interior sidewall surface of basin frame 40 cavitys, outer steel 33a, 33b is provided with inclined plane 332 in place, two ends sidewall direction respectively, be that outer steel 33a offers two inclined planes 332 at the place, two ends on the nearest side of basin frame madial wall direction, outer steel 33b also offers two inclined planes 332 in relative position, such four inclined planes 332 and relative basin frame madial wall formation four inclination angles, i.e. 33a1,33a2,33b1,33b2.When assembling like this,, illustrate that then rigging error does not appear in outer steel 33 directions, can enhance productivity as long as outer steel 33 can constitute the inclination angle with basin frame 40.Certainly, described inclined plane 332 can be that both ends are provided with the chamfering formation, also can be faceted pebble to be set constitute, and reaches the purpose of assembling fool proof.
Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (3)
1. a miniature electro-acoustic can transducer, comprise a basin frame, be arranged in basin frame internal magnetic circuit system, be suspended at the voice coil loudspeaker voice coil of magnetic circuit system, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil, wherein magnetic circuit system comprises clamping plate, is positioned at the magnet steel of clamping plate face center and is located at the magnet steel both sides and constitutes the strip outer steel of magnetic gap with magnet steel, it is characterized in that: described outer steel offers the inclined plane on the side of basin frame madial wall direction, and constitutes the inclination angle with relative sidewall.
2. miniature electro-acoustic energy transducer according to claim 1, it is characterized in that: the inclination angle is opened in the end of outer steel.
3. miniature electro-acoustic energy transducer according to claim 1 is characterized in that: described inclined plane is located at the place, two ends of outer steel sidewall direction and is connected with sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201348384U CN201491254U (en) | 2009-08-17 | 2009-08-17 | Minisize electroacoustic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201348384U CN201491254U (en) | 2009-08-17 | 2009-08-17 | Minisize electroacoustic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201491254U true CN201491254U (en) | 2010-05-26 |
Family
ID=42430118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201348384U Expired - Lifetime CN201491254U (en) | 2009-08-17 | 2009-08-17 | Minisize electroacoustic converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201491254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056059A (en) * | 2011-01-05 | 2011-05-11 | 瑞声声学科技(深圳)有限公司 | Multifunctional acoustic generator |
| CN110149580A (en) * | 2019-05-10 | 2019-08-20 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2009
- 2009-08-17 CN CN2009201348384U patent/CN201491254U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056059A (en) * | 2011-01-05 | 2011-05-11 | 瑞声声学科技(深圳)有限公司 | Multifunctional acoustic generator |
| CN110149580A (en) * | 2019-05-10 | 2019-08-20 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN110149580B (en) * | 2019-05-10 | 2021-02-12 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: Changzhou Meiou Electronics Co., Ltd. Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Patentee before: Changzhou Meiou Electronics Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |
|
| CX01 | Expiry of patent term |