CN201657289U - Micro acoustic generator - Google Patents
Micro acoustic generator Download PDFInfo
- Publication number
- CN201657289U CN201657289U CN2010201047159U CN201020104715U CN201657289U CN 201657289 U CN201657289 U CN 201657289U CN 2010201047159 U CN2010201047159 U CN 2010201047159U CN 201020104715 U CN201020104715 U CN 201020104715U CN 201657289 U CN201657289 U CN 201657289U
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- voice coil
- vibrating diaphragm
- acoustic generator
- magnetic circuit
- ring portion
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- 238000000034 method Methods 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a micro acoustic generator, which comprises a vibrating system and a magnetic circuit system, wherein the vibrating system comprises a vibrating diaphragm and a voice coil; the vibrating system with a square structure comprises a joint part and a fixed part; an area between the joint part and the fixed part forms a corrugated rim part of the vibrating diaphragm; a lead wire, which is electrically connected with an external circuit, is placed on the voice coil and arranged on the corrugated rim part; the magnetic circuit system with an internal magnetic circuit structure comprises a washer, a magnet and a basin stand which are combined from top to bottom; the voice coil is positioned in a magnetic gap formed by the magnetic circuit system, and sleeved on the washer and the magnet; moreover, the corrugated rim part adopts the inequable-width structure caused by increase of the magnet size. The design can increase the magnet size of the micro acoustic generator, reduce the distortion rate of the micro acoustic generator, and improve the acoustical property of the micro acoustic generator.
Description
Technical field
The utility model is specifically related to a kind of minitype acoustic generator.
Background technology
Along with the development in portable consumer electronic product market, obtained using widely as a large amount of electronic installations such as minitype acoustic generators.The diaphragm structure of a kind of known minitype acoustic generator as shown in Figure 5, vibrating diaphragm 21 is a rectangle, vibrating diaphragm 21 comprises the joint portion 211 that combines by viscose with square voice coil loudspeaker voice coil (not marking) and makes vibrating diaphragm 21 be fixed on fixed part 212 on the minitype acoustic generator, vibrating diaphragm zone between joint portion 211 and the fixed part 212 forms ring portion 213, the ring portion 213 enterprising row wirings of lead-in wire 23 on the square voice coil loudspeaker voice coil by being bonded in vibrating diaphragm 21, to realize being connected of minitype acoustic generator unit and external electronic circuits, the joint portion 211 of vibrating diaphragm 21 is identical with the interregional distance of vibrating diaphragm between the fixed part 212, and its width is a.
This traditional diaphragm structure because identical with the distance between the fixed part 212 in the joint portion 211 of vibrating diaphragm, need just ring portion 213 to be set to certain space and comes along lead-in wire 23, this design limit the size of voice coil loudspeaker voice coil; The minitype acoustic generator that is applied in the internal magnetic circuit structure when this vibrating diaphragm is (known, voice coil loudspeaker voice coil is set on washer and the magnet) in the time, the size of magnet can be subjected to the restriction of voice coil loudspeaker voice coil size, causes the sensitivity of minitype acoustic generator lower, distortion is excessive, is unfavorable for the raising of minitype acoustic generator acoustical behavior.So, be necessary the minitype acoustic generator of above-mentioned traditional structure is further improved, to avoid above-mentioned defective.
The utility model content
Technical problem to be solved in the utility model provides a kind of minitype acoustic generator, by improving the structure of its vibrating diaphragm, avoid the defective of the existence in the traditional minitype acoustic generator structure, can increase the magnet size of minitype acoustic generator, reduce the distortion of minitype acoustic generator, improved acoustical behavior.
For solving the problems of the technologies described above, the technical scheme that the utility model proposed is: minitype acoustic generator, involving vibrations system and magnetic circuit system, described vibrational system comprises vibrating diaphragm and the square voice coil loudspeaker voice coil that combines with described vibrating diaphragm, described vibrating diaphragm is by four edges line and four square structures that the bight surrounds, comprise and the joint portion of described square voice coil loudspeaker voice coil assembling and the fixed part that described vibrational system is fixed that the zone between described joint portion and the described fixed part forms the ring portion of described vibrating diaphragm; Also be provided with the lead-in wire that is electrically connected described square voice coil loudspeaker voice coil on the described square voice coil loudspeaker voice coil, the wiring and be electrically connected the external circuit of described minitype acoustic generator in described ring portion of described lead-in wire; Described magnetic circuit system is the internal magnetic circuit structure, comprise the washer, magnet and the basin frame that combine from top to bottom, described square voice coil loudspeaker voice coil is arranged in the magnetic gap that described magnetic circuit system forms and is set on described washer and the magnet, and: described ring portion makes described magnet size increase the not wide structure that forms.
As a kind of improvement, described vibrating diaphragm is a rectangle structure.
As a kind of improvement, two major axis of described ring portion are wide, two minor axises are wide, and described major axis and minor axis are not wide.
As a kind of improvement, described lead-in wire connects up on major axis of described ring portion or minor axis, and the width of described major axis that is used to connect up or minor axis is greater than the width of other major axis and minor axis.
As a kind of improvement, described vibrating diaphragm ring portion except that major axis that is used to connect up or minor axis other major axis and the width of minor axis equate.
As a kind of improvement, described lead-in wire glues together fixing on described vibrating diaphragm.
Owing to adopted technique scheme, minitype acoustic generator, involving vibrations system and magnetic circuit system, described vibrational system comprises vibrating diaphragm and the square voice coil loudspeaker voice coil that combines with described vibrating diaphragm, described vibrating diaphragm is by four edges line and four square structures that the bight surrounds, comprise and the joint portion of described square voice coil loudspeaker voice coil assembling and the fixed part that described vibrational system is fixed that the zone between described joint portion and the described fixed part forms the ring portion of described vibrating diaphragm; Also be provided with the lead-in wire that is electrically connected described square voice coil loudspeaker voice coil on the described square voice coil loudspeaker voice coil, the wiring and be electrically connected the external circuit of described minitype acoustic generator in described ring portion of described lead-in wire; Described magnetic circuit system is the internal magnetic circuit structure, comprise the washer, magnet and the basin frame that combine from top to bottom, described square voice coil loudspeaker voice coil is arranged in the magnetic gap that described magnetic circuit system forms and is set on described washer and the magnet, and: described ring portion makes described magnet size increase the not wide structure that forms.This design can increase the magnet size of minitype acoustic generator, has reduced the distortion of minitype acoustic generator, has improved the acoustical behavior of minitype acoustic generator.
Description of drawings
Fig. 1 is the decomposing schematic representation of the utility model embodiment;
Fig. 2 is the generalized section of the utility model embodiment;
Fig. 3 is the structural representation of the utility model vibrating diaphragm;
Fig. 4 is a kind of structural representation that improves vibrating diaphragm of the utility model;
Fig. 5 is the structural representation of vibrating diaphragm in the prior art.
Embodiment
Minitype acoustic generator as depicted in figs. 1 and 2, is square structure, comprises auxiliary system, vibrational system and magnetic circuit system, and described auxiliary system is fixed together described vibrational system and magnetic circuit system.Auxiliary system comprises protecgulum 11 and shell 12, and vibrational system comprises square vibrating diaphragm 21 and the square voice coil loudspeaker voice coil 22 that combines with vibrating diaphragm 21, also is provided with the lead-in wire 23 that is electrically connected square voice coil loudspeaker voice coil 22 and minitype acoustic generator external electronic circuits on square voice coil loudspeaker voice coil 22; Magnetic circuit system is the internal magnetic circuit structure, comprises washer 31, magnet 32 and the basin frame 33 of combination from top to bottom, and square voice coil loudspeaker voice coil 22 is arranged in the formed magnetic gap of magnetic circuit system, and is set on washer 31 and the magnet 32.Also be combined with pair of conductive sheet 4 on shell 12, lead-in wire 23 combines with conducting strip 4 electricity.
The structure of vibrating diaphragm 21 as shown in Figure 3, vibrating diaphragm 21 is by four edges line and four rectangle structures that the bight forms, comprise the joint portion 211 that combines with square voice coil loudspeaker voice coil 22 and combine the fixed part 212 that makes vibrational system fixing with auxiliary system, form the ring portion 213 of vibrating diaphragm 21 between joint portion 211 and the fixed part 212, the lead-in wire 23 on the square voice coil loudspeaker voice coil (not shown) connects up in the ring portion 213 of vibrating diaphragm 21; And: the width that the ring portion 213 of vibrating diaphragm 21 is positioned at two minor axises part is identical, as shown in Figure 3 its width is labeled as a, the width that ring portion 213 is positioned at two major axis part is also identical, width is labeled as b, wherein width a is greater than width b, thereby forms the unequal special-shaped diaphragm structure of axle hem width degree.
This design, lead-in wire 23 can wiring in the ring portion 213 in the minor axis zone of vibrating diaphragm 21 broads, simultaneously, ring portion 213 areas in the major axis zone of vibrating diaphragm 21 are reduced, thereby can increase the size of square voice coil loudspeaker voice coil 22, and then increase the size of magnet 32, the sensitivity that further improves minitype acoustic generator, reduce distortion, improve the acoustical behavior of minitype acoustic generator.
The size of ring portion 213 that also can be by reducing vibrating diaphragm 21 minor axis zones in this implementation process, and width a is set to less than width b 23 is arranged on to connect up on the major axis of vibrating diaphragm 21 and realizes this implementation result and will go between.The size of the ring portion 213 that reduces in this implementation process is by default, so that it does not influence the vibration and the acoustical behavior of vibrating diaphragm 21.
Fig. 4 is the further improvement of this implementation process, the width of the ring portion 213 in vibrating diaphragm 21 minor axis zone is a in this implementation process, the width at other major axis and minor axis place is b, and width a is greater than width b, lead-in wire 23 is the minor axis wiring of the vibrating diaphragm 21 of a from width, by reducing the length that width is b and the size at minor axis place, realize increasing magnet size in the above-mentioned implementation process, improve minitype acoustic generator sensitivity, reduce distortion and improve the technique effect of acoustical behavior.
In the enforcement of the invention, the vibrating diaphragm of square structure is meant by four edges line and four squarish structures that the bight surrounds; Size relation between the long and short axle of the vibrating diaphragm of rectangle structure also can be set to other form (as the vibrating diaphragm of square structure), should belong to the design philosophy of the invention, all is interpreted as protection range of the present utility model.
Claims (6)
1. minitype acoustic generator, involving vibrations system and magnetic circuit system, described vibrational system comprises vibrating diaphragm and the square voice coil loudspeaker voice coil that combines with described vibrating diaphragm, described vibrating diaphragm is by four edges line and four square structures that the bight surrounds, comprise and the joint portion of described square voice coil loudspeaker voice coil assembling and the fixed part that described vibrational system is fixed that the zone between described joint portion and the described fixed part forms the ring portion of described vibrating diaphragm; Also be provided with the lead-in wire that is electrically connected described square voice coil loudspeaker voice coil on the described square voice coil loudspeaker voice coil, the wiring and be electrically connected the external circuit of described minitype acoustic generator in described ring portion of described lead-in wire; Described magnetic circuit system is the internal magnetic circuit structure, comprise the washer, magnet and the basin frame that combine from top to bottom, described square voice coil loudspeaker voice coil is arranged in the magnetic gap that described magnetic circuit system forms and is set on described washer and the magnet, it is characterized in that: described ring portion makes described magnet size increase the not wide structure that forms.
2. minitype acoustic generator as claimed in claim 1 is characterized in that: described vibrating diaphragm is a rectangle structure.
3. minitype acoustic generator as claimed in claim 2 is characterized in that: two major axis of described ring portion are wide, two minor axises are wide, and described major axis and minor axis are not wide.
4. minitype acoustic generator as claimed in claim 2 is characterized in that: described lead-in wire connects up on major axis of described ring portion or minor axis, and the width of described major axis that is used to connect up or minor axis is greater than the width of other major axis and minor axis.
5. minitype acoustic generator as claimed in claim 4 is characterized in that: described vibrating diaphragm ring portion except that major axis that is used to connect up or minor axis other major axis and the width of minor axis equate.
6. as the described minitype acoustic generator of the arbitrary claim of claim 1-5, it is characterized in that: described lead-in wire glues together fixing on described vibrating diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201047159U CN201657289U (en) | 2010-01-26 | 2010-01-26 | Micro acoustic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201047159U CN201657289U (en) | 2010-01-26 | 2010-01-26 | Micro acoustic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201657289U true CN201657289U (en) | 2010-11-24 |
Family
ID=43122518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201047159U Expired - Lifetime CN201657289U (en) | 2010-01-26 | 2010-01-26 | Micro acoustic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201657289U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014010569U1 (en) | 2013-04-16 | 2016-01-07 | Wenjin Sha | Voice coil speaker with double voice coil |
| CN108462925A (en) * | 2018-01-04 | 2018-08-28 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN109819389A (en) * | 2018-12-28 | 2019-05-28 | 瑞声精密制造科技(常州)有限公司 | Vibrating diaphragm molding die |
| CN112088538A (en) * | 2018-05-14 | 2020-12-15 | 华为技术有限公司 | Electroacoustic transducer and communication device |
-
2010
- 2010-01-26 CN CN2010201047159U patent/CN201657289U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014010569U1 (en) | 2013-04-16 | 2016-01-07 | Wenjin Sha | Voice coil speaker with double voice coil |
| CN108462925A (en) * | 2018-01-04 | 2018-08-28 | 瑞声科技(新加坡)有限公司 | Microphone device |
| US10743108B2 (en) | 2018-01-04 | 2020-08-11 | AAC Technologies Pte. Ltd. | Miniature speaker |
| CN112088538A (en) * | 2018-05-14 | 2020-12-15 | 华为技术有限公司 | Electroacoustic transducer and communication device |
| CN112088538B (en) * | 2018-05-14 | 2022-02-25 | 华为技术有限公司 | Electroacoustic transducer and communication device |
| CN109819389A (en) * | 2018-12-28 | 2019-05-28 | 瑞声精密制造科技(常州)有限公司 | Vibrating diaphragm molding die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |