CN102523546A - Miniature sound generator with moving coil and assembly method thereof - Google Patents
Miniature sound generator with moving coil and assembly method thereof Download PDFInfo
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- CN102523546A CN102523546A CN2011104563064A CN201110456306A CN102523546A CN 102523546 A CN102523546 A CN 102523546A CN 2011104563064 A CN2011104563064 A CN 2011104563064A CN 201110456306 A CN201110456306 A CN 201110456306A CN 102523546 A CN102523546 A CN 102523546A
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Abstract
The invention discloses a miniature sound generator with a moving coil, which comprises a magnetic circuit system and an auxiliary system fixing the magnetic circuit system. The magnetic system comprises a first magnetism guide plate and a first magnet which are bar-shaped, wherein the first magnetism guide plate and the first magnet are assembled with a base frame from top to bottom, the auxiliary system comprises an outer casing made of insulation materials, and the outer casing is provided with a mounting groove for mounting the first magnet and the first magnetism guide plate. The invention further discloses an assembly method of the miniature sound generator with the moving coil. Assembly of the magnetic circuit system and the outer casing includes the following steps of a, mounting the first magnetism guide plate into the mounting groove of the outer casing; b, applying adhesives on the first magnetism guide plate; c, mounting the first magnet into the mounting groove and assembling the same with the first magnetism guide plate correspondingly; and d, assembling the base frame with the outer casing. The space of the outer casing is reduced, size of the magnetic circuit system is increased, and performance of products is improved. Meanwhile, the assembly process of the magnetic circuit system and the outer casing is simple, production cost is reduced and production efficiency is improved.
Description
Technical field
The present invention relates to electroacoustic switch technology field, concrete, the present invention relates to a kind of miniature moving-coil type acoustical generator, and the assemble method of this miniature moving-coil type acoustical generator.
Background technology
Fast development along with consumer electronics product market; A large amount of miniature electro-acoustic class components and parts have obtained using widely like the miniature moving-coil type acoustical generator, along with the portable design of end product; When properties of product are required, its slimming and miniaturization Design are required to improve constantly.
In traditional design; The miniature moving-coil type acoustical generator generally comprises the magnetic circuit system and the fixing auxiliary system of magnetic circuit system; Wherein magnetic circuit system comprises washer, magnet and the basin frame that combines from top to bottom, and auxiliary system comprises shell, and shell is generally the tubular of both ends open; And shell is generally selected insulating material, like resin etc.; Above-mentioned traditional miniature moving-coil type acoustical generator magnetic circuit system and shell integrated injection molding in production technology, perhaps, also fixing then through gummed through assembling magnetic circuit system and the assembling of shell one after accomplishing.
But this design, under the certain situation of product size, the wall thickness of shell has occupied the installing space of magnetic circuit system, and the size of magnetic circuit system is restricted, and is unfavorable for the raising of properties of product; The simultaneously above-mentioned traditional miniature moving-coil type acoustical generator magnetic circuit system and the packaging technology of shell need a large amount of frocks to position, and production technology is comparatively complicated, has increased production cost, and has been unfavorable for the raising of production efficiency.
Therefore, be necessary existing miniature moving-coil type acoustical generator and assemble method thereof are improved, to avoid above-mentioned defective.
Summary of the invention
Technical problem to be solved by this invention is: a kind of miniature moving-coil type acoustical generator is provided, under the certain situation of product size, can reduces the space that shell occupies, thereby increase the size of magnetic circuit system, and then improve performance of products; The present invention simultaneously also provides the assemble method of this miniature moving-coil type acoustical generator; The packaging technology of miniature moving-coil type acoustical generator magnetic circuit system and shell needs a large amount of frocks to position in the solution prior art; Production technology is comparatively complicated; Increase production cost, and be unfavorable for the technical problem of the raising of production efficiency.
To achieve these goals; The present invention adopts following technical scheme: a kind of miniature moving-coil type acoustical generator; The auxiliary system that comprises magnetic circuit system and fixing said magnetic circuit system; Said magnetic circuit system comprises first magnetic conductive board, first magnet of assembling with the basin frame from top to bottom, corresponding said first magnet of said first magnetic conductive board and be bar shaped; Said auxiliary system comprises the shell of insulating material, and: said shell is provided with mounting groove; Said first magnet and the first magnetic conductive board correspondence are installed in the said mounting groove.
As a kind of improvement, said miniature moving-coil type acoustical generator is microscler, and said mounting groove is arranged on two major axis sides of said shell.
As a kind of improvement, corresponding said first magnet of said basin frame major axis side zone forms openend.
As a kind of improvement, said magnetic circuit system also comprises second magnet and second magnetic conductive board that is arranged on basin frame center.
As a kind of improvement, the minor axis of said basin frame is provided with sidewall.
As a kind of improvement, be provided with the colloidal sol groove in the said mounting groove.
A kind of assemble method of above-mentioned miniature moving-coil type acoustical generator, following steps are adopted in the assembling of its magnetic circuit system and shell:
A is assembled to said first magnetic conductive board in the mounting groove of said shell;
B is gluing on said first magnetic conductive board;
C is installed to said first magnet in the said mounting groove, and assembles with said first magnetic conductive board is corresponding;
D is with said basin frame and the assembling of said shell.
As a kind of improvement, gluing in said mounting groove in advance before the step a.
Owing to adopted technique scheme, miniature moving-coil type acoustical generator provided by the present invention under the certain situation of product size, can reduce the space that shell occupies, thereby increases the size of magnetic circuit system, and then improves performance of products; The assemble method of this miniature moving-coil type acoustical generator provided by the invention, the packaging technology of magnetic circuit system and shell do not need a large amount of frocks to position, and production technology is simpler, has reduced production cost, has improved production efficiency.
Description of drawings
Fig. 1 is the decomposing schematic representation of the miniature moving-coil type acoustical generator that the present invention relates to;
Fig. 2 is the stereogram of the miniature moving-coil type acoustical generator shell that the present invention relates to;
Fig. 3 is miniature moving-coil type acoustical generator shell and first magnetic conductive board assembling sketch map that the present invention relates to;
Fig. 4 is the assembling sketch map of the structure shown in Figure 3 and first magnet;
Fig. 5 is the assembling sketch map of structure shown in Figure 4 and basin frame;
Fig. 6 is the assembling sketch map of miniature moving-coil type acoustical generator second magnet, second magnetic conductive board and the basin frame that the present invention relates to.
Embodiment
Specify concrete structure of the present invention below in conjunction with accompanying drawing.
Embodiment:
See also Fig. 1-shown in Figure 2; Miniature moving-coil type acoustical generator of the present invention comprises the magnetic circuit system 3 and the fixing auxiliary system of magnetic circuit system 3; Magnetic circuit system 3 comprises respectively first magnetic conductive board 311 that fits together with basin frame 33, first magnet 321 and second magnetic conductive board 312, second magnet 322 from top to bottom, wherein first magnetic conductive board 311, first magnet, 321 outer strip structures; Auxiliary system comprises shell 12, and wherein shell 12 is the shell of insulating material, and they can be for plastics etc., and shell 12 be provided with the corresponding mounting groove 121 that first magnet 321 and first magnetic conductive board 311 are installed.
Pass through technique scheme; Mounting groove 121 corresponding assemblings on first magnetic conductive board 311 and external magnetic circuit 321 and the shell 12, the space that can occupy according to the actual wall thickness that reduces shell 12 etc. is arranged on shell 12 wall thickness like the position with mounting groove 121; The installing space of magnetic circuit system 3 further increases; Under the certain situation of product size, thereby can increase the size of magnetic circuit system 3, improve performance of products.
In this implementation process, said miniature moving-coil type acoustical generator is microscler, and mounting groove 121 is arranged on two major axis sides of shell 12.The miniature moving-coil type acoustical generator of elongate structure is more conducive to the realization that product is made in production application.
In this implementation process; Preferred design is that the zone of corresponding first magnet 321 of basin frame 33 major axis sides forms openend; Major axis side at basin frame 33 is set to openend; Under the certain situation of product size, can further increase the size of magnet in the magnetic circuit system 3, further improve performance of products.
In addition, magnetic circuit system 3 also comprises second magnetic conductive board 312 and second magnet 322 that combines with basin frame 33 from top to bottom in this implementation process, and wherein second magnetic conductive board 312, second magnet 322 and first magnetic conductive board 311, first magnet 321 are provided with respectively at interval.The double magnetic circuit design is adopted in this design, can increase the magnetic property of magnetic circuit system.
In addition, in this implementation process, the minor axis side of basin frame 33 is provided with sidewall, in the minor axis side leakage field that sidewall can reduce magnetic circuit system is set, and guarantees the magnetic force performance of magnetic circuit system 3.
In addition, in this implementation process, be provided with glue groove 122 in the mounting groove 121.Be provided with glue groove 122 can be when shell 12 and the assembling of first magnetic conductive board 311 gluing in advance, be convenient to the fixedly assembling of the shell 12 and first magnetic conductive board 311.
In this implementation process; FPC 4 is a loop configuration; Comprise first fixing hole 41, second fixing hole 42, the first pad group 43 and 44 two pairs of pads of the second pad group; FPC can combine through modes such as bonding, mechanical engagement with shell 12, wherein preferred scheme be first fixing hole 41 with shell 12 sidewalls on fixed leg 14 corresponding mounts; Hot melt post 13 corresponding combinations on second fixing hole 42 and shell 12 end faces are fixed together through hot melting mode.In addition; The first pad group 43 and the second pad group 44 are arranged on the relative diaxon of shell 12; Internal circuit through FPC 4 between the two pairs of pads is electrically connected; This design can be so that the circuit design of miniature moving-coil type acoustical generator, particularly under lead-in wire 24 leading-out terminals and the situation of miniature moving-coil type acoustical generator terminals at diverse location.
Miniature moving-coil type acoustical generator in this implementation process also comprises following structure: auxiliary system also comprises the pressure ring 11 of fixing said vibrational system; The voice coil loudspeaker voice coil 23 that vibrational system 2 comprises vibrating diaphragm and combines with vibrating diaphragm; The central part 21 in the middle of vibrating diaphragm comprises and the annular rim portion 22 of hollow; Voice coil loudspeaker voice coil 23 is provided with lead-in wire 24; The end face that the shell 12 of magnetic circuit system 3 is installed is provided with FPC 4, is electrically connected FPC 4 through the lead-in wire on the voice coil loudspeaker voice coil 23 24.
Like Fig. 3-shown in Figure 6, the miniature moving-coil type acoustical generator magnetic circuit system 3 among the present invention adopts following mode to assemble with shell 12:
A is assembled to first magnetic conductive board 311 in the mounting groove 121 of shell 12;
B is gluing on first magnetic conductive board 311;
C is installed to first magnet 321 in the mounting groove 121, and assembles with first magnetic conductive board, 311 correspondences;
D is with basin frame 33 and shell 12 assemblings.
Owing to adopted above-mentioned assembling mode; The assemble method of the miniature moving-coil type acoustical generator in this implementation process; The packaging technology of magnetic circuit system 3 and shell 12 does not need a large amount of frocks accurately to locate, and only needs the simplified assembling operation to get final product, and production technology is simpler; Reduce production cost, improved production efficiency.
In addition, in above-mentioned packaging technology, preferred scheme is, gluing in mounting groove 121 in advance before step a.Gluing in mounting groove 121 can better be fixed first magnetic conductive board 311 in advance, and then improves the firm degree of magnetic circuit system 3 and shell 12 assemblings.
In this implementation process, the moving-coil type acoustical generator also can also can be provided with mounting groove, the neither enforcement that influences the invention on four axle limits of the miniature moving-coil type acoustical generator of square structure for circle waits other structure the while simultaneously.
More than be merely invention practical implementation case, be not limited to the present invention,, all should include in the protection range of putting down in writing in claims as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed.
Claims (8)
1. miniature moving-coil type acoustical generator; The auxiliary system that comprises magnetic circuit system and fixing said magnetic circuit system; Said magnetic circuit system comprises first magnetic conductive board, first magnet of assembling with the basin frame from top to bottom, corresponding said first magnet of said first magnetic conductive board and be bar shaped; Said auxiliary system comprises the shell of insulating material, it is characterized in that: said shell is provided with mounting groove; Said first magnet and the first magnetic conductive board correspondence are installed in the said mounting groove.
2. miniature moving-coil type acoustical generator according to claim 1 is characterized in that:
Said miniature moving-coil type acoustical generator is microscler, and said mounting groove is arranged on two major axis sides of said shell.
3. miniature moving-coil type acoustical generator according to claim 2 is characterized in that:
Corresponding said first magnet of said basin frame major axis side zone forms openend.
4. miniature moving-coil type acoustical generator according to claim 1 is characterized in that:
Said magnetic circuit system also comprises second magnet and second magnetic conductive board that is arranged on basin frame center.
5. miniature moving-coil type acoustical generator according to claim 3 is characterized in that:
The minor axis of said basin frame is provided with sidewall.
6. according to the described miniature moving-coil type acoustical generator of the arbitrary claim of claim 1-5, it is characterized in that:
Be provided with glue groove in the said mounting groove.
7. assemble method of miniature moving-coil type acoustical generator according to claim 1, it is characterized in that: following steps are adopted in the assembling of said magnetic circuit system and said shell:
A. said first magnetic conductive board is assembled in the mounting groove of said shell;
B. gluing on said first magnetic conductive board;
C. said first magnet is installed in the said mounting groove, and assembles with said first magnetic conductive board is corresponding;
D. with said basin frame and the assembling of said shell.
8. the assemble method of miniature moving-coil type acoustical generator as claimed in claim 7 is characterized in that: gluing in said mounting groove in advance before the step a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104563064A CN102523546A (en) | 2011-12-30 | 2011-12-30 | Miniature sound generator with moving coil and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104563064A CN102523546A (en) | 2011-12-30 | 2011-12-30 | Miniature sound generator with moving coil and assembly method thereof |
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| Publication Number | Publication Date |
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| CN102523546A true CN102523546A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104563064A Pending CN102523546A (en) | 2011-12-30 | 2011-12-30 | Miniature sound generator with moving coil and assembly method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106060733A (en) * | 2016-07-20 | 2016-10-26 | 深圳市信维通信股份有限公司 | High-performance speakerbox and preparation method thereof |
| CN109495809A (en) * | 2019-01-05 | 2019-03-19 | 深圳市韶音科技有限公司 | Osteoacusis loudspeaker arrangement |
| US11906817B2 (en) | 2018-08-24 | 2024-02-20 | Shenzhen Shokz Co., Ltd. | Eyeglasses |
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| CN2938671Y (en) * | 2006-08-18 | 2007-08-22 | 潍坊歌尔电子有限公司 | Mini-loudspeaker |
| US20080317276A1 (en) * | 2007-06-20 | 2008-12-25 | Sonion Horsens A/S | High efficient miniature electro-acoustic transducer with reduced dimensions |
| CN101984677A (en) * | 2010-11-02 | 2011-03-09 | 瑞声声学科技(深圳)有限公司 | Sound generator |
| CN201893919U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
| CN201937816U (en) * | 2010-12-30 | 2011-08-17 | 瑞声光电科技(常州)有限公司 | Electroacoustic transducer |
| CN202425034U (en) * | 2011-12-30 | 2012-09-05 | 歌尔声学股份有限公司 | Miniature moving coil type sounder |
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2011
- 2011-12-30 CN CN2011104563064A patent/CN102523546A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2938671Y (en) * | 2006-08-18 | 2007-08-22 | 潍坊歌尔电子有限公司 | Mini-loudspeaker |
| US20080317276A1 (en) * | 2007-06-20 | 2008-12-25 | Sonion Horsens A/S | High efficient miniature electro-acoustic transducer with reduced dimensions |
| CN101984677A (en) * | 2010-11-02 | 2011-03-09 | 瑞声声学科技(深圳)有限公司 | Sound generator |
| CN201893919U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
| CN201937816U (en) * | 2010-12-30 | 2011-08-17 | 瑞声光电科技(常州)有限公司 | Electroacoustic transducer |
| CN202425034U (en) * | 2011-12-30 | 2012-09-05 | 歌尔声学股份有限公司 | Miniature moving coil type sounder |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106060733A (en) * | 2016-07-20 | 2016-10-26 | 深圳市信维通信股份有限公司 | High-performance speakerbox and preparation method thereof |
| US11906817B2 (en) | 2018-08-24 | 2024-02-20 | Shenzhen Shokz Co., Ltd. | Eyeglasses |
| US11940669B2 (en) | 2018-08-24 | 2024-03-26 | Shenzhen Shokz Co., Ltd. | Glasses |
| US11940670B2 (en) | 2018-08-24 | 2024-03-26 | Shenzhen Shokz Co., Ltd. | Eyeglasses |
| US11977275B2 (en) | 2018-08-24 | 2024-05-07 | Shenzhen Shokz Co., Ltd. | Glasses |
| CN109495809A (en) * | 2019-01-05 | 2019-03-19 | 深圳市韶音科技有限公司 | Osteoacusis loudspeaker arrangement |
| CN109495809B (en) * | 2019-01-05 | 2024-01-26 | 深圳市韶音科技有限公司 | Bone conduction loudspeaker |
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Application publication date: 20120627 |