CN201369815Y - Micro type sound generating device - Google Patents
Micro type sound generating device Download PDFInfo
- Publication number
- CN201369815Y CN201369815Y CNU2009201299547U CN200920129954U CN201369815Y CN 201369815 Y CN201369815 Y CN 201369815Y CN U2009201299547 U CNU2009201299547 U CN U2009201299547U CN 200920129954 U CN200920129954 U CN 200920129954U CN 201369815 Y CN201369815 Y CN 201369815Y
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- China
- Prior art keywords
- magnetic bowl
- magnetic
- pedestal
- bowl
- mini
- 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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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 27
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
本实用新型提供了一种微型发声器件，其主要包括基座、嵌置在基座内的磁碗、收容于磁碗中的磁钢、部分容纳在磁碗与磁钢形成的磁间隙中的线圈、连接于线圈一端的振膜，以及与基座共同形成收容腔、并将上述元件容纳其中的上盖，所述磁碗包括底面和自底面延伸的侧面，在所述磁碗的侧面开设有泄露孔。由于在磁碗的侧面开孔，不会造成漏气，还提供了发声器球顶下面空气的泄露渠道，由于磁碗底面没有破坏，装配方便，不用人工补胶。
The utility model provides a miniature sound-generating device, which mainly includes a base, a magnetic bowl embedded in the base, a magnetic steel accommodated in the magnetic bowl, and a magnet partially accommodated in the magnetic gap formed by the magnetic bowl and the magnetic steel. The coil, the vibrating film connected to one end of the coil, and the upper cover that together form the receiving cavity with the base and accommodate the above-mentioned elements, the magnetic bowl includes a bottom surface and a side extending from the bottom surface, and a There is a leak hole. Since the holes are made on the side of the magnetic bowl, it will not cause air leakage, and it also provides a channel for air leakage under the dome of the sounder. Since the bottom surface of the magnetic bowl is not damaged, it is easy to assemble and does not need artificial glue filling.
Description
Technical field
The utility model relates to a kind of mini-sound device, relates in particular to a kind of mini-sound device 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 mini-sound device of dependency structure mainly comprises and joins as bowl-shape pedestal, with pedestal and be provided with the loam cake in hole, pedestal and loam cake formation host cavity.Be provided with in this host cavity and be contained in the pedestal and link to each other with pole piece, with the vibrating diaphragm of loam cake adjacency, with vibrating diaphragm with permanent magnet that pedestal forms magnetic gap 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.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.
Referring to Fig. 1, the mini-sound device 2 of dependency structure mainly comprises pedestal 21, is contained in the pedestal 21 and magnetic bowl 22 that exceed pedestal 21, with the permanent magnet 23 and the pole piece 24 of magnetic bowl 22 formation magnetic gap, the vibrating diaphragm 26 that is suspended in the voice coil loudspeaker voice coil 25 in the magnetic gap and links to each other with voice coil loudspeaker voice coil 25.Magnetic bowl 22 bottom surfaces are provided with hole 221.
When feeding alternating current in the voice coil loudspeaker voice coil 25, the voice coil loudspeaker voice coil 25 that is in the magnetic gap can be because the effect in magnetic field produces motion, and along with the variation of electric current, this motion also can change thereupon, thereby drives the vibrating diaphragm up-down vibration, causes the generation of sound.
Exceed at magnetic bowl 22 under the situation of pedestal 21, because that magnetic bowl 22 bottom surfaces are offered is porose 221, cause gas leakage easily, influence the performance of acoustical generator, and the sealing of its magnetic bowl 22 bottom surfaces needs manually to put glue, cost height and time are long.
Thereby, be necessary to study a kind of Microspeaker with new construction.
The utility model content
The technical problems to be solved in the utility model be to provide a kind of acoustical behavior good, assemble simple mini-sound device.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is:
A kind of mini-sound device, it mainly comprises pedestal, be embedded in magnetic bowl in the pedestal, be contained in the vibrating diaphragm that magnet steel, part in the magnetic bowl is contained in coil in the magnetic gap of magnetic bowl and magnet steel formation, is connected in coil one end, and form host cavity jointly and said elements is held wherein loam cake with pedestal, described magnetic bowl comprises bottom surface and the side of extending from the bottom surface, offers leak holes in the side of described magnetic bowl.
Preferably, offer two leak holes in the side of described magnetic bowl.
Preferably, offer four leak holes in the side of described magnetic bowl.
The beneficial effects of the utility model are: owing to, can not cause gas leakage, also provide the leakage channel of the following air in acoustical generator ball top in the perforate of the side of magnetic bowl, and easy to assembly owing to the magnetic bowl bottom does not destroy, need not manually mend glue.
Description of drawings
Fig. 1 is the stereogram of the mini-sound device of correlation technique;
Fig. 2 is the mini-sound device three-dimensional exploded view that the utility model provides an embodiment;
Fig. 3 is the stereogram of the mini-sound device of an embodiment providing of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 3, the utility model mini-sound device 1 is mainly used on the portable consumer electronic products such as mobile phone, in order to the prompting of sounding.
In general, mini-sound device 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 in this cavity volume and be contained in the pedestal and link to each other with pole piece, with the vibrating diaphragm of loam cake adjacency, with vibrating diaphragm with permanent magnet that pedestal forms magnetic gap 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.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.
Please join Fig. 2, be depicted as the three-dimensional exploded view of the utility model mini-sound device 1, this miniature device 1 comprise pedestal 11, be embedded in magnetic bowl 12 in the pedestal 11, be contained in magnet steel 13 in the magnetic bowl 12, post the vibrating diaphragm 16 that pole piece 14, part on magnet steel 13 is contained in coil 15 in the magnetic gap that magnetic bowl 12 and magnet steel 13 form, is connected in coil 15 1 ends, and form host cavities and said elements is held wherein loam cake (not shown) with pedestal 11 is common.When feeding alternating current in the coil 15, the coil 15 that is in the magnetic gap can be because the effect in magnetic field produces motion, and along with the variation of electric current, this motion also can change thereupon, thereby drives vibrating diaphragm 16 up-down vibration, causes the generation of sound.
The side (not indicating) that magnetic bowl 12 comprises bottom surface (not indicating) and extends from the bottom surface, the side of magnetic bowl 12 offers leak holes 121.This leak holes 121 can be two adjacent leak holes; Also can have four leak holes, in these four leak holes, first group of leak holes comprises two adjacent leak holes, and second group also comprises two adjacent leak holes, and first group of leak holes is relative with second group of leak holes.
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 kind of mini-sound device, it mainly comprises pedestal, be embedded in magnetic bowl in the pedestal, be contained in the vibrating diaphragm that magnet steel, part in the magnetic bowl is contained in coil in the magnetic gap of magnetic bowl and magnet steel formation, is connected in coil one end, and form host cavity jointly and said elements is held wherein loam cake with pedestal, it is characterized in that: described magnetic bowl comprises bottom surface and the side of extending from the bottom surface, offers leak holes in the side of described magnetic bowl.
2, mini-sound device according to claim 1 is characterized in that: offer two leak holes in the side of described magnetic bowl.
3, mini-sound device according to claim 1 is characterized in that: offer four leak holes in the side of described magnetic bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201299547U CN201369815Y (en) | 2009-02-20 | 2009-02-20 | Micro type sound generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201299547U CN201369815Y (en) | 2009-02-20 | 2009-02-20 | Micro type sound generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369815Y true CN201369815Y (en) | 2009-12-23 |
Family
ID=41488702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201299547U Expired - Lifetime CN201369815Y (en) | 2009-02-20 | 2009-02-20 | Micro type sound generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369815Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020029643A1 (en) * | 2018-08-05 | 2020-02-13 | 瑞声声学科技(深圳)有限公司 | Speaker |
-
2009
- 2009-02-20 CN CNU2009201299547U patent/CN201369815Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020029643A1 (en) * | 2018-08-05 | 2020-02-13 | 瑞声声学科技(深圳)有限公司 | Speaker |
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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: 20091223 |
|
| CX01 | Expiry of patent term |