CN202496061U - Micro moving-coil electro-acoustic converter - Google Patents
Micro moving-coil electro-acoustic converter Download PDFInfo
- Publication number
- CN202496061U CN202496061U CN2012200808217U CN201220080821U CN202496061U CN 202496061 U CN202496061 U CN 202496061U CN 2012200808217 U CN2012200808217 U CN 2012200808217U CN 201220080821 U CN201220080821 U CN 201220080821U CN 202496061 U CN202496061 U CN 202496061U
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- centring disk
- voice coil
- location division
- shell
- electroacoustic transducer
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- 238000005452 bending Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 abstract description 15
- 230000010287 polarization Effects 0.000 abstract description 7
- 241000239290 Araneae Species 0.000 abstract 12
- 230000035945 sensitivity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a micro moving-coil electro-acoustic converter comprising: a vibration system comprising a diaphragm and a driving apparatus, a magnetic circuit system, an auxiliary system, and a spider and surround. The spider and surround is fixedly connected between the driving apparatus and a housing. The spider and surround comprises an independent first spider and surround and an independent second spider and surround. The first spider and surround and the second spider and surround are arranged in a staggered manner. The first spider and surround and the second spider and surround each comprises sequentially arranged components of a first positioning part, a bent part, a deformation art, and a second positioning part. The bending direction of the bent part is perpendicular to the vibration direction of the driving apparatus. The bending direction of the bent part of the first spider and surround is opposite to that of the second spider and surround. With the micro moving-coil electro-acoustic converter provided by the utility model, the compliance of the spider and surround can be improved, such that polarization is prevented during a voice coil vibration process.
Description
Technical field
The utility model relates to the electroacoustic techniques field, is specifically related to a kind of miniature moving-coil type electroacoustic transducer.
Background technology
At present, along with the development of electronics technology, portable electronic consumer product market enlarges day by day, is widely used as the miniature moving-coil type electroacoustic transducer of important acoustic element.Miniature moving-coil type electroacoustic transducer involving vibrations system, magnetic circuit system, auxiliary system and centring disk, vibrational system comprise vibrating diaphragm and the voice coil loudspeaker voice coil that combines with vibrating diaphragm one side, and the plane at this voice coil loudspeaker voice coil place is vertical with the plane at vibrating diaphragm place.Magnetic circuit system comprises magnet, and the magnet level places and the parallel plane position of voice coil loudspeaker voice coil, and forms the magnetic gap of ccontaining voice coil loudspeaker voice coil.Auxiliary system comprises accommodates the fixedly shell and the side plate of vibrational system and magnetic circuit system, also is combined with the conductive connecting device that is electrically connected voice coil leads and external electronic circuits on the shell, and voice coil leads is connected electrically on the location division with the centring disk of its synchronous vibration.
The miniature moving-coil type electroacoustic transducer of traditional structure, voice coil loudspeaker voice coil are flat, and the area on plane is bigger, and in the vibration processes, the direction of vibration of voice coil loudspeaker voice coil can not be controlled at the edge direction parallel with magnet fully, and voice coil loudspeaker voice coil the collision of polarization and magnet can take place and influences acoustical behavior.And the centring disk of traditional structure can not well prevent polarization, makes the performance of vibration undesirable, and the centring disk entire length of traditional structure is smaller, thereby compliance is less, causes the product resonance frequency higher, influences acoustical behavior.Therefore, be necessary the miniature moving-coil type electroacoustic transducer of said structure is improved, to avoid above-mentioned defective.
The utility model content
The utility model technical problem to be solved is: a kind of miniature moving-coil type electroacoustic transducer is provided, can increases the compliance of centring disk, and can prevent in the voice coil loudspeaker voice coil vibration processes polarization to take place.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
Miniature moving-coil type electroacoustic transducer comprises:
Vibrational system; Said vibrational system comprises vibrating diaphragm and the drive unit that is incorporated into said vibrating diaphragm one side; Said drive unit plane, place and plane, said vibrating diaphragm place are perpendicular; Said drive unit comprises the voice coil loudspeaker voice coil of flat and the speech coil framework of fixing said voice coil loudspeaker voice coil, and the end away from said vibrating diaphragm on the said speech coil framework is arranged with two first fixed parts;
Magnetic circuit system, said magnetic circuit system is set in parallel in the both sides of said drive unit;
Auxiliary system, said auxiliary system comprise the shell of accommodating fixing said vibrational system and said magnetic circuit system; And
Centring disk, said centring disk are fixedly connected between said drive unit and the said shell, and said centring disk comprises independently first centring disk and second centring disk,
Said first centring disk and said second centring disk are crisscross arranged, and said first centring disk includes first location division that is fixedly connected with said first fixed part, kink, deformations that sets gradually and second location division that is fixedly connected with said shell with said second centring disk; Wherein, the direction of said kink bending is perpendicular to the direction of said drive unit vibration, and the overbending direction of the kink of the overbending direction of the kink of said first centring disk and said second centring disk is opposite.
Preferably, the bending part of said first centring disk is in the position that the deformations with said second centring disk adapts, and the bending part of said second centring disk is in the position that the deformations with said first centring disk adapts.
Preferably, said deformations is a U type structure.
Preferably, first location division of said centring disk, second location division and deformations and said voice coil loudspeaker voice coil are positioned on the same plane.
Preferably, the end of said first location division is a bending structure, is provided with to be used for first conductive connection part that is electrically connected with the voice coil leads of said voice coil loudspeaker voice coil.
Preferably, said shell comprises the first shell halfbody, the second shell halfbody that snaps together, and the side cover that is arranged on said first shell halfbody and the second shell halfbody, one side.
Preferably, the inwall of the said second shell halfbody is provided with second fixed part, and second location division of said second centring disk is fixedly connected with said second fixed part; The inwall of the said first shell halfbody is provided with the 3rd fixed part, and second location division of said first centring disk is fixedly connected with said the 3rd fixed part.
Preferably, the end of said second location division is provided with second conductive connection part that is used for being electrically connected with external circuit.
After adopting technique scheme, the beneficial effect of the utility model is:
Because said centring disk is fixedly connected between said drive unit and the said shell; Said centring disk comprises independently first centring disk and second centring disk; Said first centring disk and second centring disk are crisscross arranged, and said first centring disk includes first location division that is fixedly connected with said first fixed part, kink, deformations that sets gradually and second location division that is fixedly connected with said shell with said second centring disk; Wherein, the direction of said kink bending is perpendicular to the direction of said drive unit vibration, and the overbending direction of the kink of the overbending direction of the kink of said first centring disk and said second centring disk is opposite.The centring disk of this structure can prevent effectively that voice coil loudspeaker voice coil from polarization taking place in vibration processes, thereby can improve the overall performance of miniature moving-coil type electroacoustic transducer.
Because said deformations is the U-shaped structure, first location division of said centring disk, second location division and deformations and said voice coil loudspeaker voice coil are positioned on the same plane; The deformations 43 easy deformation of this U-shaped structure can well be followed the voice coil loudspeaker voice coil vibration in the voice coil loudspeaker voice coil vibration processes, and can not influence the sensitivity of vibrational system.And the centring disk entire length of this structure is bigger, and the design of this centring disk lengthening can increase the compliance of centring disk, the sensitivity that improves vibrational system.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the explosive view of the utility model miniature moving-coil type electroacoustic transducer;
Fig. 2 is the reference view after the assembling of the utility model miniature moving-coil type electroacoustic transducer;
Fig. 3 is the perspective view of centring disk among Fig. 1;
Fig. 4 is the schematic top plan view of centring disk among Fig. 3;
Fig. 5 is the perspective view that the utility model drive unit and centring disk combine;
Fig. 6 is the schematic top plan view that the utility model drive unit and centring disk combine;
Fig. 7 is the perspective view that the utility model drive unit, centring disk and the second shell halfbody combine;
Fig. 8 is the perspective view that the utility model drive unit, centring disk, vibrating diaphragm, side cover and the second shell halfbody combine;
Among the figure: 11, side cover; 12, the first shell halfbody; 121, the 3rd fixed part; 13, the second shell halfbody; 131, second fixed part; 132, peristome; 21, vibrating diaphragm; 22, composite bed; 23, voice coil loudspeaker voice coil; 24, speech coil framework; 241, first fixed part; 31, magnet; 32, magnetic conductive board; 40, centring disk; 401, first centring disk; 402, second centring disk; 41, first location division; 42, kink; 43, deformations; 44, second location division; 45a, first conductive connection part; 45b, second conductive connection part.
Embodiment
In the following description; Only some example embodiment of the utility model is described through the mode of explanation; Undoubtedly; Those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from the utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing be described in just illustratively in essence, rather than be used to limit the protection range of claim.In addition, in this manual, identical Reference numeral indicates identical part.
Like Fig. 1, shown in Figure 2, miniature moving-coil type electroacoustic transducer involving vibrations system, this vibrational system comprise vibrating diaphragm 21 and the drive unit that is incorporated into vibrating diaphragm 21 1 sides, and drive unit comprises the voice coil loudspeaker voice coil 23 of flat and the fixing speech coil framework 24 of voice coil loudspeaker voice coil 23.In order to improve the performance of vibrating diaphragm 21, the center of vibrating diaphragm 21 also is combined with the composite bed 22 of rigidity.End away from vibrating diaphragm 21 on the speech coil framework 24 is arranged with two first fixed parts 241.
Magnetic circuit system; Comprise magnet 31 and magnetic conductive board 32; Be fixed with two magnet 31 on each magnetic conductive board 32 side by side, magnet 31 is arranged at the parallel plane position in voice coil loudspeaker voice coil 23 both sides and voice coil loudspeaker voice coil 23 places, and the magnetic polarization direction of magnet 31 is vertical with the plane at voice coil loudspeaker voice coil 23 places in this implementation process.In this implementation process, magnet 31 is two pairs, respectively the both sides that are distributed in voice coil loudspeaker voice coil 23 of symmetry; The middle magnetic field that forms ccontaining voice coil loudspeaker voice coil 23; According to Faraday's law, when current passes through magnetic field, can receive an electric power; Its direction meets left hand rule, and electrodynamic direction is all vertical with the direction in electric current and magnetic field.Like this, when feeding AC signal in the voice coil loudspeaker voice coil 23, can produce vibration, and drive vibrating diaphragms 21 vibrations, promote air repeatedly and sound through speech coil framework 24 thereby voice coil loudspeaker voice coil 23 receives an alternation motive force in magnetic field.
Auxiliary system comprises and accommodates the fixedly shell of vibrational system and magnetic circuit system, and this shell comprises the first shell halfbody 12, the second shell halfbody 13 that snaps together, and the side cover 11 that is arranged on the first shell halfbody 12 and the second shell halfbody, 13 1 sides.
The miniature moving-coil type electroacoustic transducer of this embodiment also comprises the centring disk 40 of metal material.Fig. 2 is the reference view after the assembling of the utility model miniature moving-coil type electroacoustic transducer; Fig. 3 is the perspective view of centring disk in the utility model; Fig. 4 is the schematic top plan view of centring disk in the utility model; Fig. 5 is the perspective view that the utility model drive unit and centring disk combine; Fig. 6 is the schematic top plan view that the utility model drive unit and centring disk combine; Fig. 7 is the perspective view that the utility model drive unit, centring disk and the second shell halfbody combine, and Fig. 8 is the perspective view that the utility model drive unit, centring disk, vibrating diaphragm, side cover and the second shell halfbody combine, and is as shown in the figure; Centring disk 40 comprises that independently first centring disk 401 and second centring disk, 402, the first centring disks 401 and second centring disk 402 include first location division 41, kink 42, the deformations 43 that are used for being fixedly connected with first fixed part 241 that sets gradually and second location division 44 that is used for being fixedly connected with said shell.
Kink 42 is connected with first location division 41, and its overbending direction is perpendicular to the direction of vibration of drive unit;
The kink 42 of first centring disk 401 is bending upwards, is positioned at the position that the deformations 43 with second centring disk 402 adapts, and the kink 42 of second centring disk 402 bends downwards, is positioned at the position that the deformations 43 with first centring disk 401 adapts.Certainly; Also can be provided with conversely; Promptly the kink 42 of first centring disk 401 bends downwards, is positioned at the position that the deformations 43 with second centring disk 402 adapts, the upwards bending of kink 42 of second centring disk 402; Be positioned at the position that the deformations 43 with first centring disk 401 adapts, all do not influence the realization of this implementation process; Such first centring disk 401 and second centring disk 402 form and are crisscross arranged.The centring disk 40 of this structure; The overbending direction of the overbending direction of the kink 42 of first centring disk 401 and the kink 42 of second centring disk 402 is opposite; Kink 42 is approximately S type structure with deformations 43 on perpendicular to voice coil loudspeaker voice coil 23 direction of vibration planes; And first location division 41, deformations 43 and second location division 42 are positioned on the same plane with voice coil loudspeaker voice coil 23; The structure of this centring disk 40 can effectively prevent in voice coil loudspeaker voice coil 23 vibration processes polarization to take place, and improves the overall performance of miniature moving-coil type electroacoustic transducer.In order to prevent that drive unit centring disk 40 along away from the vibration of the direction of side cover 11 time from bumping with shell, the position corresponding to kink 42 on the shell also is provided with peristome 132, can prevent in the vibration processes that deformations 43 bumps with it.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (8)
1. miniature moving-coil type electroacoustic transducer comprises:
Vibrational system; Said vibrational system comprises vibrating diaphragm and the drive unit that is incorporated into said vibrating diaphragm one side; The plane at said drive unit place and the plane at said vibrating diaphragm place are perpendicular; Said drive unit comprises the voice coil loudspeaker voice coil of flat and the speech coil framework of fixing said voice coil loudspeaker voice coil, and the end away from said vibrating diaphragm on the said speech coil framework is arranged with two first fixed parts;
Magnetic circuit system, said magnetic circuit system is set in parallel in the both sides of said drive unit;
Auxiliary system, said auxiliary system comprise the shell of accommodating fixing said vibrational system and said magnetic circuit system; And
Centring disk, said centring disk are fixedly connected between said drive unit and the said shell, and said centring disk comprises independently first centring disk and second centring disk,
It is characterized in that; Said first centring disk and said second centring disk are crisscross arranged, and said first centring disk includes first location division that is fixedly connected with said first fixed part, kink, deformations that sets gradually and second location division that is fixedly connected with said shell with said second centring disk; Wherein, the direction of said kink bending is perpendicular to the direction of said drive unit vibration, and the overbending direction of the kink of the overbending direction of the kink of said first centring disk and said second centring disk is opposite.
2. miniature moving-coil type electroacoustic transducer as claimed in claim 1; It is characterized in that; The bending part of said first centring disk is in the position that the deformations with said second centring disk adapts, and the bending part of said second centring disk is in the position that the deformations with said first centring disk adapts.
3. miniature moving-coil type electroacoustic transducer as claimed in claim 2 is characterized in that, said deformations is a U type structure.
4. miniature moving-coil type electroacoustic transducer as claimed in claim 1 is characterized in that, first location division of said centring disk, second location division and deformations and said voice coil loudspeaker voice coil are positioned on the same plane.
5. miniature moving-coil type electroacoustic transducer as claimed in claim 1 is characterized in that the end of said first location division is a bending structure, is provided with to be used for first conductive connection part that is electrically connected with the voice coil leads of said voice coil loudspeaker voice coil.
6. miniature moving-coil type electroacoustic transducer as claimed in claim 1 is characterized in that, said shell comprises the first shell halfbody, the second shell halfbody that snaps together, and the side cover that is arranged on said first shell halfbody and the second shell halfbody, one side.
7. miniature moving-coil type electroacoustic transducer as claimed in claim 6 is characterized in that the inwall of the said second shell halfbody is provided with second fixed part, and second location division of said second centring disk is fixedly connected with said second fixed part; The inwall of the said first shell halfbody is provided with the 3rd fixed part, and second location division of said first centring disk is fixedly connected with said the 3rd fixed part.
8. miniature moving-coil type electroacoustic transducer as claimed in claim 7 is characterized in that, the end of said second location division is provided with second conductive connection part that is used for being electrically connected with external circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200808217U CN202496061U (en) | 2012-03-06 | 2012-03-06 | Micro moving-coil electro-acoustic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200808217U CN202496061U (en) | 2012-03-06 | 2012-03-06 | Micro moving-coil electro-acoustic converter |
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| Publication Number | Publication Date |
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| CN202496061U true CN202496061U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200808217U Expired - Lifetime CN202496061U (en) | 2012-03-06 | 2012-03-06 | Micro moving-coil electro-acoustic converter |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101022A (en) * | 2015-08-25 | 2015-11-25 | 歌尔声学股份有限公司 | Vibration sounding apparatus |
| WO2019205711A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound emission device |
| WO2019205712A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound emission device |
| WO2021212539A1 (en) * | 2020-04-24 | 2021-10-28 | 瑞声声学科技(深圳)有限公司 | Micro sound production device |
-
2012
- 2012-03-06 CN CN2012200808217U patent/CN202496061U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101022A (en) * | 2015-08-25 | 2015-11-25 | 歌尔声学股份有限公司 | Vibration sounding apparatus |
| WO2017031861A1 (en) * | 2015-08-25 | 2017-03-02 | 歌尔声学股份有限公司 | Vibrating acoustic device |
| CN105101022B (en) * | 2015-08-25 | 2018-11-09 | 歌尔股份有限公司 | Vibration-sound generating device |
| WO2019205711A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound emission device |
| WO2019205712A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound emission device |
| WO2021212539A1 (en) * | 2020-04-24 | 2021-10-28 | 瑞声声学科技(深圳)有限公司 | Micro sound production device |
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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. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |