CN201290177Y - Minitype electric energy phonation device - Google Patents
Minitype electric energy phonation device Download PDFInfo
- Publication number
- CN201290177Y CN201290177Y CNU2008202134231U CN200820213423U CN201290177Y CN 201290177 Y CN201290177 Y CN 201290177Y CN U2008202134231 U CNU2008202134231 U CN U2008202134231U CN 200820213423 U CN200820213423 U CN 200820213423U CN 201290177 Y CN201290177 Y CN 201290177Y
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- positioning step
- loam cake
- diaphragm
- voice coil
- 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.)
- Ceased
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to an electroacoustical transfer field, more concretely a sound generating device for conversing electric energy into acoustic energy, wherein single positioning step is fixed on a cone frame, edges of a diaphragm and upper cover are superposed in sequence and are positioned on the positioning step, the diaphragm has a concave inverse-folding ring, thereby enlarging frequency response range and making assembly convenient, and the design of the single positioning step avoids mistake assembly of the diaphragm for making assembly process of the electric energy sound generating device simple, rapid and highly effective and reducing cost. The sound generating device can be applied to the sound generating device with the diaphragm element extensively.
Description
[technical field]
The utility model relates to electroacoustic energy conversion field, refers to that specifically a kind of electric energy converts the sound-producing device of acoustic energy to.
[background technology]
Mini-sound device is widely used in portable electronic equipments such as mobile phone, notebook computer.Along with fast development, the people of these portable electronic equipments are more and more stronger to its functional requirement, the also corresponding development apace of the mini-sound device that is applied thereon.
Mini-sound device is finished electric energy as microphone devices such as loud speaker, receivers and is converted acoustic energy in order to finish the conversion between electric energy and the acoustic energy.General, as shown in Figure 3, mini-sound device comprise auxiliary system 10 ', vibrational system 20 ' and magnetic circuit system 30 ', described auxiliary system comprise loam cake 11 ' and basin frame 12 ', loam cake 11 ' and basin frame 12 ' receiving space of compositions, with vibrational system 20 ' with magnetic circuit system 30 ' be housed in the cavity; Vibrational system 20 ' be provided with vibrating diaphragm 21 ', the protruding membranous part 211 of general vibrating diaphragm 21 ' all be provided with ', the vibration radiation area of the vibrating diaphragm of this projection is little, its Hz-KHz is also little, and because structural reason, vibrating diaphragm 21 ' edge part be bonded in basin frame 12 ' on, basin frame 12 ' be provided with first step 12a ' and second step 12b ', because the microphone device volume is very small, this double step structure is easy to that when vibrating diaphragm 21 ' assembling mistake takes place and adorns phenomenon, certainly will influence the global reliability of mini-sound device to very high this of parts matching requirements, therefore, it is simple and reliable to be necessary to study a kind of assembly structure, the sound-producing device that Hz-KHz is wide.
[utility model content]
The purpose of this utility model is to solve acoustical generator because the internal structure complexity, and causes the demanding problem of assembly precision, and propose a kind of simple in structure, the micro electric sound-producing device that is easy to assemble.
The utility model micro electric sound-producing device, comprise auxiliary system, vibrational system and magnetic circuit system, auxiliary system comprises by loam cake with loam cake forms the basin frame of receiving space, vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is connected with vibrating diaphragm, vibrational system and magnetic circuit system are housed in the receiving space, be recessed with voice coil loudspeaker voice coil junction to the zone of vibrating diaphragm edge part on the described vibrating diaphragm to reflexed ring away from loam cake, the basin frame is provided with positioning step, the edge part of the overlapping successively connection vibrating diaphragm of positioning step upper surface and the edge part of loam cake.
The utility model micro electric sound-producing device, on the basin frame, be provided with single positioning step, be positioned on the positioning table terrace the edge part of vibrating diaphragm and loam cake is overlapping successively, and vibrating diaphragm be provided with recess, not only be beneficial to the expansion Hz-KHz, but also vibrating diaphragm convenient for assembly, the design of single positioning step also avoids the vibrating diaphragm mistake to adorn the generation of phenomenon, make the electrical sound generation device assembling process simple, rapidly and efficiently, reduce cost, can be widely used in the sound-producing device with vibrating diaphragm element.
[description of drawings]
Fig. 1 is a cross-sectional view of the present utility model;
Fig. 2 is the A portion structure for amplifying schematic diagram of Fig. 1;
Fig. 3 is the cross-sectional view of existing sound-producing device.
[embodiment]
Below in conjunction with accompanying drawing, the utility model sound-producing device is elaborated.
As shown in Figure 2, be cross-sectional view of the present utility model; The utility model comprises auxiliary system 10, vibrational system 20 and magnetic circuit system 30, auxiliary system 10 comprises loam cake 11 and forms the basin frame 12 of receiving spaces with loam cake 11, vibrational system 20 comprises vibrating diaphragm 21 and the voice coil loudspeaker voice coil 22 that is connected with vibrating diaphragm 21, magnetic circuit system comprises magnet frame 33 and the magnet steel 31 and the pole piece 32 that are housed in the magnet frame 33, gap between magnet steel 31 and the magnet frame 33 is a magnetic gap, voice coil loudspeaker voice coil 22 is suspended in the magnetic gap, and vibrational system 20 and magnetic circuit system are housed in the receiving space of loam cake 11 and basin frame 12 compositions.
As shown in Figure 3, A portion enlarged drawing for Fig. 1, basin frame 12 is provided with single positioning step 121, the cross section of this positioning step 121 is less than the basal plane that is depended on, the upper surface of positioning step 121 is connecting the edge part of vibrating diaphragm 21, the edge part of loam cake 11 is pressed on the edge part of vibrating diaphragm 21, the design of single positioning step 121, can quickly and easily vibrating diaphragm 21 and loam cake 11 be fixed on the basin frame 12, mistake can not occur and adorn the generation of phenomenon, and owing to be provided with the reflexed ring 211 of concavity on the vibrating diaphragm to the zone of vibrating diaphragm edge part with the voice coil loudspeaker voice coil junction, the design of reflexed ring 211 increases vibrating diaphragm 21 swept areas, enlarge vibrating diaphragm 21 Hz-KHzs, and the vibrating diaphragm of concavity partly is convenient to the installation of whole vibrating diaphragm 21, so not only be easy to the parts assembling, and relative cost reduces also.The design of single positioning step 121 also makes whole micro electric sound-producing device unfailing performance improve.
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)
1, a kind of micro electric sound-producing device, comprise auxiliary system, vibrational system and magnetic circuit system, auxiliary system comprises by loam cake with loam cake forms the basin frame of receiving space, vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is connected with vibrating diaphragm, vibrational system and magnetic circuit system are housed in the receiving space, it is characterized in that: be recessed with voice coil loudspeaker voice coil junction to the zone of vibrating diaphragm edge part on the described vibrating diaphragm to reflexed ring away from loam cake, the basin frame is provided with positioning step, the edge part of the overlapping successively connection vibrating diaphragm of positioning step upper surface and the edge part of loam cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202134231U CN201290177Y (en) | 2008-11-07 | 2008-11-07 | Minitype electric energy phonation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202134231U CN201290177Y (en) | 2008-11-07 | 2008-11-07 | Minitype electric energy phonation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201290177Y true CN201290177Y (en) | 2009-08-12 |
Family
ID=40981858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202134231U Ceased CN201290177Y (en) | 2008-11-07 | 2008-11-07 | Minitype electric energy phonation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201290177Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984678A (en) * | 2010-11-18 | 2011-03-09 | 瑞声声学科技(深圳)有限公司 | Sound generator |
| CN102088651A (en) * | 2011-01-07 | 2011-06-08 | 瑞声声学科技(深圳)有限公司 | Electroacoustic transducer |
| CN105721994A (en) * | 2016-04-22 | 2016-06-29 | 歌尔声学股份有限公司 | Mini loudspeaker |
| CN107360522A (en) * | 2017-08-07 | 2017-11-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
-
2008
- 2008-11-07 CN CNU2008202134231U patent/CN201290177Y/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984678A (en) * | 2010-11-18 | 2011-03-09 | 瑞声声学科技(深圳)有限公司 | Sound generator |
| CN101984678B (en) * | 2010-11-18 | 2016-04-06 | 瑞声声学科技(深圳)有限公司 | Acoustical generator |
| CN102088651A (en) * | 2011-01-07 | 2011-06-08 | 瑞声声学科技(深圳)有限公司 | Electroacoustic transducer |
| CN105721994A (en) * | 2016-04-22 | 2016-06-29 | 歌尔声学股份有限公司 | Mini loudspeaker |
| CN107360522A (en) * | 2017-08-07 | 2017-11-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20110130 Decision number of declaring invalidation: 15995 Granted publication date: 20090812 |