CN104102087A - Testing device for micro voice coil motor - Google Patents
Testing device for micro voice coil motor Download PDFInfo
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- CN104102087A CN104102087A CN201410390059.6A CN201410390059A CN104102087A CN 104102087 A CN104102087 A CN 104102087A CN 201410390059 A CN201410390059 A CN 201410390059A CN 104102087 A CN104102087 A CN 104102087A
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- coil motor
- micro
- voice coil
- sound coil
- rotor
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Abstract
The invention discloses a testing device for a micro voice coil motor. The testing device comprises a laser generator, and three position detection devices which are uniformly arranged obliquely above the periphery of the micro voice coil motor, wherein the laser generator transmits at least three laser beams which are aligned with a rotor of the micro voice coil motor at uniform intervals; the position detection devices are used for receiving laser signals subjected to diffuse reflection of the rotor, and outputting displacement and deviation generated by the micro voice coil motor according to the varied laser signals when the rotor moves. The testing device has high detection efficiency and high accuracy, and does not cause any damage to the micro voice coil motor. A novel simpler detection way is provided for the detection of the micro voice coil motor.
Description
Technical field
The present invention relates to the proving installation of micro-sound coil motor, relate in particular to the testing apparatus that can detect autofocus motor and the anti-shake motor of optics.
Background technology
Micro-sound coil motor is widely used in the portable electric appts such as smart mobile phone, panel computer, along with the development of voice coil motor, its kind is more and more, function is also more and more abundanter, after coming into operation, can stablize constantly normal work in order to ensure it, its property must be through well detecting and checking.
Current motor checkout equipment on the market all need to be installed a false camera lens on micro-sound coil motor, and so false camera lens must fix with voice coil motor, causes on voice coil motor and damages for the thread that true camera lens is installed, and causes motor failure.And the mode that adopts false camera lens to detect micro-sound coil motor, its detection time is longer, efficiency is very low, the complex structure of pick-up unit, if in testing process, precision and the position of false camera lens are uncertain, will cause the inaccurate of detection, produce erroneous judgement, motor can not be met the need of market completely.
Therefore the checkout equipment that, how to provide one to can be used for precision measurement micro-sound coil motor (the anti-shake motor of autofocus motor and optics) performance parameter is industry technical matters urgently to be resolved hurrily.
Summary of the invention
The present invention is in order to solve the technical matters existing in above-mentioned prior art, a kind of proving installation for micro-sound coil motor is proposed, comprise a laser generator, be evenly located at least 3 position detecting devices of micro-sound coil motor surrounding oblique upper, described laser generator transmitting at least 3 bundle laser, aim at evenly and at intervals the rotor of micro-sound coil motor, described position detecting device receives the laser signal after rotor diffuse reflection, in the time of rotor motion, position detecting device, according to the laser signal changing, is exported displacement and deflection that micro-sound coil motor produces.
In one embodiment, described position detecting device is PSD position transducer.
In another embodiment, described position detecting device is camera.
The present invention adopts displacement and the deflection to micro-sound coil motor of laser generator and position detecting device to detect, do not need to be fixed and to be connected with miniature voice coil loudspeaker voice coil, can not damage accurate micro-sound coil motor hardware, and compared with false camera lens, accuracy of detection is higher, detection time is short, has greatly simplified the detection operation of micro-sound coil motor.
Brief description of the drawings
Fig. 1 is schematic perspective view of the present invention;
Fig. 2 is the vertical view of micro-sound coil motor of the present invention.
Embodiment
Below in conjunction with meeting detailed description specific embodiments of the invention; following specific embodiment is only in order to illustrate design of the present invention; those of ordinary skill in the art can make various deformation and variation under design of the present invention, and these distortion and variation include within protection scope of the present invention.
As shown in Figure 1, proving installation for micro-sound coil motor proposed by the invention mainly comprises two kinds of parts: laser generator 1 and position detecting device 2, laser generator 1 is arranged on the top of micro-sound coil motor 3, 2 of position detecting devices are located at the oblique upper of micro-sound coil motor 3 surroundings, be circulating type, position detecting device 2 is at least provided with 3, laser generator 1 can transmitting at least 3 be restrainted laser, aim at evenly and at intervals the rotor 31 of micro-sound coil motor 3, then receive the laser signal after rotor 31 diffuse reflections by position detecting device 2, rotor 31 is when static, position detecting device 2 can detect corresponding laser signal, in the time that rotor 31 moves, laser signal can change, then position detecting device 2 is according to the laser signal changing, displacement and deflection that output micro-sound coil motor 3 produces.
In one embodiment, position detecting device 2 can adopt PSD position transducer, quantity can arrange more than 3, in the present embodiment, laser generator 1 has sent 4 bundle laser, aimed at respectively rotor 31 all directions to four points, PSD position transducer is provided with 4, be respectively used to receive 4 laser signals, by detecting the variation of 4 laser signals, can export the displacement of micro-sound coil motor 3, by detecting the variation of 2 laser signals on diagonal line, the deflection that can export micro-sound coil motor 3.
In other embodiments, position detecting device 2 can also adopt shooting first-class, equally also belongs to protection scope of the present invention.
In the present embodiment, available laser generator model can select that 5mW, 650nm are general, one in Melles Griot/05-LHP-151, and the model of PSD position transducer can be selected the one in DRX-2DPSD-14AMD, DRX-2DPSD-JT01, DRX-1DPSD-A01.The present invention, by adopting laser generator 1 and corresponding position detecting device 2, can accurately draw the moving situation of micro-sound coil motor 3, and compared with prior art, structure is simpler, and testing result is more accurate.
Claims (3)
1. for a proving installation for micro-sound coil motor, it is characterized in that, comprising:
Laser generator, for transmitting at least 3 bundle laser, aims at the rotor of micro-sound coil motor evenly and at intervals;
Position detecting device, described position detecting device evenly arranges at least 3 at micro-sound coil motor surrounding oblique upper, for receiving the laser signal after rotor diffuse reflection, in the time of rotor motion, position detecting device, according to the laser signal changing, is exported displacement and deflection that micro-sound coil motor produces.
2. the proving installation for micro-sound coil motor as claimed in claim 1, is characterized in that, described position detecting device is PSD position transducer.
3. the proving installation for micro-sound coil motor as claimed in claim 1, is characterized in that, described position detecting device is camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390059.6A CN104102087B (en) | 2014-08-08 | 2014-08-08 | A kind of test device for micro-sound coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390059.6A CN104102087B (en) | 2014-08-08 | 2014-08-08 | A kind of test device for micro-sound coil motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104102087A true CN104102087A (en) | 2014-10-15 |
| CN104102087B CN104102087B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410390059.6A Active CN104102087B (en) | 2014-08-08 | 2014-08-08 | A kind of test device for micro-sound coil motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316039A (en) * | 2023-05-16 | 2023-06-23 | 度亘核芯光电技术(苏州)有限公司 | Method for testing ring laser |
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| CN104111418A (en) * | 2013-04-19 | 2014-10-22 | 群光电子(苏州)有限公司 | VCM (voice coil motor) jitter detection machine |
| CN204028558U (en) * | 2014-08-08 | 2014-12-17 | 深圳市世尊科技有限公司 | A kind of proving installation for micro-sound coil motor |
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2014
- 2014-08-08 CN CN201410390059.6A patent/CN104102087B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090107125A (en) * | 2008-04-08 | 2009-10-13 | (주)리캠 | Tilt measuring apparatus of VCM lens and measurement method thereof and a computer-readable medium thereof |
| CN101750869A (en) * | 2008-12-05 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor testing device |
| CN101833234A (en) * | 2009-03-13 | 2010-09-15 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor testing device and auxiliary device thereof |
| KR20130076289A (en) * | 2011-12-28 | 2013-07-08 | 삼성전기주식회사 | Integrated test apparatus for camera module |
| CN103076567A (en) * | 2012-12-28 | 2013-05-01 | 昆山丘钛微电子科技有限公司 | VCM (Voice Coil Motor) motor performance test system and test method |
| CN104111418A (en) * | 2013-04-19 | 2014-10-22 | 群光电子(苏州)有限公司 | VCM (voice coil motor) jitter detection machine |
| CN203324017U (en) * | 2013-06-26 | 2013-12-04 | 昆山丘钛微电子科技有限公司 | Performance test system for camera VCM motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316039A (en) * | 2023-05-16 | 2023-06-23 | 度亘核芯光电技术(苏州)有限公司 | Method for testing ring laser |
| CN116316039B (en) * | 2023-05-16 | 2023-08-22 | 度亘核芯光电技术(苏州)有限公司 | Method for testing ring laser |
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| Publication number | Publication date |
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| CN104102087B (en) | 2016-09-28 |
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