CN201563227U - miniature sounder - Google Patents
miniature sounder Download PDFInfo
- Publication number
- CN201563227U CN201563227U CN2009202601892U CN200920260189U CN201563227U CN 201563227 U CN201563227 U CN 201563227U CN 2009202601892 U CN2009202601892 U CN 2009202601892U CN 200920260189 U CN200920260189 U CN 200920260189U CN 201563227 U CN201563227 U CN 201563227U
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- Prior art keywords
- lower cover
- plane
- cover board
- cavity
- upper cover
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- Expired - Lifetime
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a miniature sounder, which includes a lower cover board provided in the first cavity, a magnetic bowl inlayed in the first cavity of the lower cover board, a magnet steel stored in the magnetic bowl, a frame provided on the lower cover board, a coil accommodated in the magnetic gap formed at the magnetic bowl and magnet steel, a diaphragm connected to one end of the coil, and an upper cover board connected to the lower cover board for forming a storage space for storing the components, and a sound hole provided on the upper cover board, wherein the frame is provided between the lower cover board and the upper cover board, the frame includes a first plane apart from the lower cover board, a second plane adjacent to the lower cover board and a second cavity perforating the first plane and second plane, the diaphragm is placed on the first plane, and a gap is remained between the diaphragm and upper cover board. The miniature sounder with the structure can improve the volume of front cavity.
Description
Technical field
The utility model relates to a kind of minitype acoustic generator, relates in particular to a kind of minitype acoustic generator that is applied on the portable consumer electronic products such as mobile phone.
Background technology
Mini-sound device is widely used in portable electronic equipments such as mobile phone, notebook computer, hearing aids.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.
The minitype acoustic generator of dependency structure mainly comprises as bowl-shape pedestal, joins with pedestal and be provided with the loam cake in hole, and pedestal and loam cake form a cavity volume.Be provided with the permanent magnet that is contained in the pedestal and forms magnetic gap with pedestal and pole piece in this cavity volume, link to each other and be suspended in voice coil loudspeaker voice coil in the described magnetic gap, outside pedestal, be provided with the circuit board that realization links to each other with external circuit, the passing the hole that pedestal is provided with into and out of line and link to each other of voice coil loudspeaker voice coil with circuit board with the bonding vibrating diaphragm of loam cake, with vibrating diaphragm.When feeding the alternation tone currents on circuit board, when feeding alternating current in the coil, voice coil loudspeaker voice coil can be because the effect in magnetic field produces motion in magnetic gap, variation along with electric current, this motion also can change thereupon, thereby drives the vibrating diaphragm up-down vibration, causes the generation of sound.
But the minitype acoustic generator of this dependency structure is when design, and the ante-chamber of product is less, thereby, be necessary to study a kind of minitype acoustic generator with new construction.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of minitype acoustic generator that can improve preceding cavity volume.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is:
A kind of minitype acoustic generator, it comprises the lower cover that is provided with first cavity, be embedded in the magnetic bowl in lower cover first cavity, be contained in the magnet steel in the magnetic bowl, be arranged on the framework on the lower cover, be contained in the coil in the magnetic gap that magnetic bowl and magnet steel form, be connected in the vibrating diaphragm of coil one end, be connected to form the upper cover plate of the receiving space that is used to accommodate said elements with lower cover, be arranged on the sound hole on the upper cover plate, framework is arranged between lower cover and the upper cover plate, framework comprises first plane away from lower cover, near second plane of lower cover and pass first plane and second cavity on second plane, vibrating diaphragm is placed on first plane, leaves the space between vibrating diaphragm and the upper cover plate.
Preferably, described minitype acoustic generator also comprises the pole piece that posts on described magnet steel.
The beneficial effects of the utility model are: because framework is arranged between lower cover and the upper cover plate, framework comprises second plane of first plane away from lower cover, close lower cover and passes first plane and second cavity on second plane, vibrating diaphragm is placed on first plane, leave the space between vibrating diaphragm and the upper cover plate, so, improved the volume of ante-chamber.
Description of drawings
Fig. 1 is the stereogram that the utility model provides minitype acoustic generator;
Fig. 2 is the profile of the minitype acoustic generator that provides of the utility model;
Fig. 3 is the perspective exploded view of the minitype acoustic generator that provides of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 1, the utility model minitype acoustic generator is mainly used on the portable consumer electronic products such as mobile phone, in order to the prompting of sounding.
Referring to Fig. 2 and Fig. 3, the minitype acoustic generator that the utility model provides comprises lower cover 2, framework 8, magnetic bowl 7, magnet steel 6, coil 4, vibrating diaphragm 3 and loam cake 1.Wherein, lower cover 2 is provided with first cavity 21, and framework 8 is provided with first plane 81, close lower cover 2 second planes 82 away from lower cover 2 and passes first plane 81 and second cavity 83 on second plane 82.
Its assembly relation is:
Magnetic bowl 7 is embedded in lower cover first cavity 21, magnet steel 6 is contained in the magnetic bowl 7, framework 8 is arranged on the lower cover 2, coil 4 is contained in the magnetic gap that magnetic bowl 7 and magnet steel 6 form, vibrating diaphragm 3 is connected in coil 4 one ends, upper cover plate 1 is connected with lower cover 2, and the receiving space, the hole 11 that are formed for accommodating said elements are arranged on (referring to Fig. 1) on the upper cover plate 1.
Wherein, framework 8 is arranged between lower cover 2 and the upper cover plate 1, and vibrating diaphragm 3 is placed on first plane 81, referring to Fig. 2, leaves space 9 between vibrating diaphragm 3 and the upper cover plate 1.
Minitype acoustic generator also comprises the pole piece 5 that posts on described magnet steel 6.
On coil 4, be provided with coil lead (not label), also be provided with pad (not label) on the framework 8.
After coil 4 fed alternating current, coil 4 can be because the effect in magnetic field produces motion in magnetic gap, and along with the variation of electric current, this motion also can change thereupon, thereby drives vibrating diaphragm 3 up-down vibration, causes the generation of sound.
Because framework 8 is arranged between lower cover 2 and the upper cover plate 1, framework 8 comprises second plane 82 of first plane 81 away from lower cover, close lower cover and passes first plane and second cavity 82 on second plane, vibrating diaphragm 3 is placed on first plane 81, leave space 9 between vibrating diaphragm 3 and the upper cover plate 1, so, improved the volume of ante-chamber.
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 (2)
1. minitype acoustic generator, it comprises the lower cover that is provided with first cavity, be embedded in the magnetic bowl in lower cover first cavity, be contained in the magnet steel in the magnetic bowl, be arranged on the framework on the lower cover, be contained in the coil in the magnetic gap that magnetic bowl and magnet steel form, be connected in the vibrating diaphragm of coil one end, be connected to form the upper cover plate of the receiving space that is used to accommodate said elements with lower cover, be arranged on the sound hole on the upper cover plate, it is characterized in that: framework is arranged between lower cover and the upper cover plate, framework comprises first plane away from lower cover, near second plane of lower cover and pass first plane and second cavity on second plane, vibrating diaphragm is placed on first plane, leaves the space between vibrating diaphragm and the upper cover plate.
2. minitype acoustic generator according to claim 1 is characterized in that: described minitype acoustic generator also comprises the pole piece that posts on described magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202601892U CN201563227U (en) | 2009-11-09 | 2009-11-09 | miniature sounder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202601892U CN201563227U (en) | 2009-11-09 | 2009-11-09 | miniature sounder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201563227U true CN201563227U (en) | 2010-08-25 |
Family
ID=42628376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202601892U Expired - Lifetime CN201563227U (en) | 2009-11-09 | 2009-11-09 | miniature sounder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201563227U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395088A (en) * | 2011-08-30 | 2012-03-28 | 瑞声声学科技(深圳)有限公司 | Sounding device |
| CN103167388A (en) * | 2011-12-19 | 2013-06-19 | 莫列斯公司 | Loudspeaker device |
| CN103338424A (en) * | 2012-11-13 | 2013-10-02 | 厦门东声电子有限公司 | Micro loudspeaker |
-
2009
- 2009-11-09 CN CN2009202601892U patent/CN201563227U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395088A (en) * | 2011-08-30 | 2012-03-28 | 瑞声声学科技(深圳)有限公司 | Sounding device |
| CN102395088B (en) * | 2011-08-30 | 2014-06-04 | 瑞声声学科技(深圳)有限公司 | Sounding device |
| CN103167388A (en) * | 2011-12-19 | 2013-06-19 | 莫列斯公司 | Loudspeaker device |
| CN103338424A (en) * | 2012-11-13 | 2013-10-02 | 厦门东声电子有限公司 | Micro loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |
|
| CX01 | Expiry of patent term |