CN101833234B - Voice coil motor testing device and auxiliary device thereof - Google Patents
Voice coil motor testing device and auxiliary device thereof Download PDFInfo
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- CN101833234B CN101833234B CN 200910300860 CN200910300860A CN101833234B CN 101833234 B CN101833234 B CN 101833234B CN 200910300860 CN200910300860 CN 200910300860 CN 200910300860 A CN200910300860 A CN 200910300860A CN 101833234 B CN101833234 B CN 101833234B
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- voice coil
- coil motor
- probe
- pedestal
- groove
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Abstract
The invention provides a voice coil motor testing device comprising a pedestal and two probe seats, wherein the pedestal is provided with a first containing slot used for containing a voice coil motor and a groove communicated with the first containing slot; the groove extends towards two sides of the pedestal from the first containing slot; the two probe seats are respectively pivoted to two sides of the pedestal, where the groove is arranged; and each probe seat is provided with a probe which can be embedded or be far away from the groove relative to the rotation of a pivot along with the probe seat, thereby respectively contacting or being far away from the current input end and the current output end of the voice coil motor to be tested and realizing power-on or power-off control on the voice coil motor. The voice coil motor testing device also comprises a range finder used for measuring the moving distance of the electrified voice coil motor and comparing the distance with a standard value.
Description
Technical field
The present invention relates to a kind of voice coil motor testing device and servicing unit thereof.
Background technology
Along with the development of camera technique, the camera module with automatic focusing or zoom function is widely used in the camera head of various uses.Voice coil motor is little due to volume, power consumption reaches the advantages such as cheap less, is suitable for focusing or zoom actuator as the camera module.
The camera module is in shipment during to the client, normally with the image quality quality of camera module as judgment basis.Yet, affect camera module image quality factor a lot of: as the impact of making interface between dynamic stability, the degree of stability of voice coil motor own and each assembly of image sensor, driving circuit.Wherein most of reason all is attributed to voice coil motor and produced high spud angle in the start process.
At present, camera module manufacturer normally utilizes a voice coil motor to estimate the characteristic of machine (including a stadimeter that is used for measuring the voice coil motor move distance) test tone coil motor monomer.Whether the voice coil motor start after test is assembled to the camera module has when abnormal, normally directly power to the soft board connector of camera module, yet this electric current will be by driving circuit and voice coil motor, if the image quality of camera module is not good, very difficult differentiation is software issue, drive circuit chip problem, Circuit Wiring Problem or the problem of voice coil motor monomer.Thereby this measurement mode can't record the start behavior that is assembled to the voice coil motor monomer after the camera module.
Summary of the invention
In view of this, be necessary to provide a kind of voice coil motor testing device and servicing unit thereof that directly records the start behavior of the voice coil motor monomer that is assembled to the camera module.
a kind of voice coil motor testing device, it comprises a pedestal and two probe bases, this pedestal is provided with one first accepting groove, be used for accommodating this voice coil motor, also be provided with a groove that communicates with this first accepting groove on this pedestal, this groove is extended to the both sides of this pedestal respectively by this first accepting groove, these two probe bases pivot respectively are fixed in the both sides that pedestal offers this groove, be equipped with a probe on each probe base, this probe can be along with probe base with respect to the rotation embedding of pivot or away from this groove, thereby contact respectively or be away from current input terminal and the current output terminal of voice coil motor to be tested, realization is controlled energising or the outage of voice coil motor, this voice coil motor testing device also comprises a stadimeter, be used for measuring the distance of the rear voice coil motor motion of energising, and itself and standard value are compared.
a kind of voice coil motor testing auxiliary device, it comprises a pedestal and two probe bases, this pedestal is provided with one first accepting groove, be used for accommodating this voice coil motor, also be provided with a groove that communicates with this first accepting groove on this pedestal, this groove is extended to the both sides of this pedestal respectively by this first accepting groove, these two probe bases pivot respectively are fixed in the both sides that pedestal offers this groove, be equipped with a probe on each probe base, this probe can be along with probe base with respect to the rotation embedding of pivot or away from this groove, thereby contact respectively or be away from current input terminal and the current output terminal of voice coil motor to be tested, realization is controlled energising or the outage of voice coil motor.
Compared to prior art, use voice coil motor testing device provided by the invention and servicing unit thereof, external circuit can directly via the voice coil motor power supply of probe to the camera module, then record the distance of moving after its energising by stadimeter, and should distance compare with standard value.Because electric current can be through driving circuit and the flexible circuit board of whole module, so whether can directly record the start that is assembled to the voice coil motor monomer after the camera module normal.
Description of drawings
Fig. 1 is the camera module that contains voice coil motor that provides of the embodiment of the present invention and the schematic perspective view of voice coil motor testing auxiliary device.
Fig. 2 is the voice coil motor testing auxiliary device decomposed schematic diagram of Fig. 1.
Fig. 3 is the decomposed schematic diagram of voice coil motor testing auxiliary device under another visual angle of Fig. 1.
Fig. 4 is the constitutional diagram that voice coil motor testing device that the embodiment of the present invention provides is being tested the voice coil motor that is assembled in the camera module.
Fig. 5 is after in Fig. 4, voice coil motor tests, and probe is rotated to the constitutional diagram away from voice coil motor.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
The structure of the camera module 100 with voice coil motor that will test in following first brief description the present embodiment.See also Fig. 1, this camera module 100 comprises that a flexible PCB 110, is electrically connected at image sensor (not shown), a lens barrel 120 and the voice coil motor 130 on flexible PCB 110.This voice coil motor 130 comprises current input terminal 132a and current output terminal 132b.Have two weld pads 112 corresponding with this current input terminal 132a and current output terminal 132b on this flexible PCB 110.After camera module 100 assembling is completed, utilize signal bronze etc. that current input terminal 132a and current output terminal 132b are welded mutually with weld pad 112 accordingly, form two solder joint (not shown).This current input terminal 132a is connected two solder joints are connected to drive voice coil motor 130 with the external circuit (not shown) fitted tube (not shown) to-and-fro movement with current output terminal 132b, thus 120 to-and-fro movements of band moving lens barrel, the function of realization focusing or zoom.
See also Fig. 1 to Fig. 3, the embodiment of the present invention provides a kind of voice coil motor testing auxiliary device 200.This voice coil motor testing auxiliary device 200 comprises a pedestal 210, two probe bases 220, two the first magnet 230, two the second magnet 240 and a pressing plate 250.
This pedestal 210 is provided with one first accepting groove 212, is used for accommodating this camera module 100.Also be provided with a groove 214 that communicates with this first accepting groove 212 on this pedestal 210, this groove 214 extends to the both sides of this pedestal 210.The degree of depth of this groove 214 is preferably more than the degree of depth of this first accepting groove 212, is used for holding the connector (not shown) of this flexible PCB 110 belows, ends.The material of this pedestal 210 is stainless steel, aluminium, polyetherketone or polyoxymethylene.
These two probe bases 220 are arranged at respectively the both sides that pedestal 210 offers this groove 214.Being shaped as of this probe base 220 is L shaped, certainly, is not limited to L shaped in the present embodiment, can also be other shape.This pedestal 210 is provided with a pivot 216 at the horizontal end of this probe base 220 with perpendicular junction of holding, and this probe base 220 can rotate with respect to pedestal 210 around this pivot 216.Be equipped with a probe 222 on each probe base 220, this probe 222 is arranged on the horizontal end of this probe base 220, and corresponding with the position of this groove 214.When the horizontal end of this probe base 220 was parallel to the upper surface of this pedestal 210, this probe 222 just can embed this groove 214 and contact with current input terminal 132a or the current output terminal 132b of voice coil motor 130.
The horizontal end end of each probe base 220 is provided with 224, two the first magnet 230 of one second accepting groove and is contained in respectively in this second accepting groove 224.The bottom of this pedestal 210 is provided with respectively 226, two the second magnet 240 of the 3rd accepting groove near this second accepting groove 224 places and is contained in respectively in the 3rd accepting groove 226.This first magnet 230 attracts each other with this second magnet 240.This pressing plate 250 is installed on the surface of this pedestal 210 by a mounting hole 252, be used for the camera module 100 of fixing test process.
See also Fig. 4, during voice coil motor 130 in test is assembled in camera module 100, one stadimeter 30 is set above this camera module 100, then rotate this probe base 220 take pivot 216 as turning axle, this probe 222 is embedded in groove 214, thereby touch current input terminal 132a and the current output terminal 132b of voice coil motor 130, use simultaneously this pressing plate 250 to fix this camera module 100.Sucking action due to the first magnet 230 and the second magnet 240, can make probe 222 be contacted with more closely current input terminal 132a and current output terminal 132b, thereby the external circuit (not shown) can power to drive voice coil motor 130 motions for voice coil motor 130 via probe 222, the distance of voice coil motor 130 motions is recorded by this stadimeter 30, and should distance compare to judge with standard value whether voice coil motor 130 works.
See also Fig. 5, when the voice coil motor of changing other camera modules when needs is tested, rotate this probe base 220 take pivot 216 as turning axle, make this probe 222 away from current input terminal 132a and the current output terminal 132b of this voice coil motor 130, then other camera modules are positioned in this first accepting groove 212 test.
Compared to prior art, use voice coil motor testing auxiliary device 200 provided by the invention, external circuit can directly give voice coil motor 130 power supplies via probe 222, then records the distance of moving after its energising by stadimeter 30, and should distance compare with standard value.Because electric current can be through driving circuit (not shown) and the flexible circuit board 110 of whole module, so whether can directly record the start that is assembled to voice coil motor 130 monomers after camera module 100 normal.
In addition, for the person of ordinary skill of the art, can make other various corresponding variations according to technical scheme of the present invention and technical conceive, and all these variations all should belong to the protection domain of claim of the present invention.
Claims (8)
1. voice coil motor testing device, it comprises a pedestal and two probe bases, this pedestal is provided with one first accepting groove, be used for accommodating this voice coil motor, also be provided with a groove that communicates with this first accepting groove on this pedestal, this groove is extended to the both sides of this pedestal respectively by this first accepting groove, these two probe bases pivot respectively are fixed in the both sides that pedestal offers this groove, be equipped with a probe on each probe base, this probe can be along with probe base with respect to the rotation embedding of pivot or away from this groove, thereby contact respectively or be away from current input terminal and the current output terminal of voice coil motor to be tested, realization is controlled energising or the outage of voice coil motor, this voice coil motor testing device also comprises a stadimeter, be used for measuring the distance of the rear voice coil motor motion of energising, and itself and standard value are compared.
2. voice coil motor testing device as claimed in claim 1, is characterized in that, the degree of depth of this groove is greater than the degree of depth of this first accepting groove.
3. voice coil motor testing device as claimed in claim 1, it is characterized in that, being shaped as of this probe base is L shaped, and it comprises a horizontal end and a perpendicular end, this probe is arranged on this horizontal end, and this probe base can rotate with respect to pedestal take the intersection point place of horizontal end and perpendicular end as pivot.
4. voice coil motor testing device as claimed in claim 3, it is characterized in that, the horizontal end end of this each probe base is provided with second accepting groove, this base bottom is provided with respectively the 3rd accepting groove near this second accepting groove place, this voice coil motor testing device also comprises two the first magnet and two the second magnet, this first magnet is contained in this second accepting groove, and this second magnet is contained in the 3rd accepting groove, and this first magnet and this second magnet attract each other.
5. voice coil motor testing device as claimed in claim 1, is characterized in that, this voice coil motor testing device also comprises a pressing plate, is used for the voice coil motor of fixing test process.
6. voice coil motor testing device as claimed in claim 1, is characterized in that, the material of this pedestal is stainless steel, aluminium, polyetherketone or polyoxymethylene.
7. voice coil motor testing device as claimed in claim 1, is characterized in that, this stadimeter is infrared range-measurement system or laser range finder.
8. voice coil motor testing auxiliary device, it comprises a pedestal and two probe bases, this pedestal is provided with one first accepting groove, be used for accommodating this voice coil motor, also be provided with a groove that communicates with this first accepting groove on this pedestal, this groove is extended to the both sides of this pedestal respectively by this first accepting groove, these two probe bases pivot respectively are fixed in the both sides that pedestal offers this groove, be equipped with a probe on each probe base, this probe can be along with probe base with respect to the rotation embedding of pivot or away from this groove, thereby contact respectively or be away from current input terminal and the current output terminal of voice coil motor to be tested, realization is controlled energising or the outage of voice coil motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910300860 CN101833234B (en) | 2009-03-13 | 2009-03-13 | Voice coil motor testing device and auxiliary device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910300860 CN101833234B (en) | 2009-03-13 | 2009-03-13 | Voice coil motor testing device and auxiliary device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101833234A CN101833234A (en) | 2010-09-15 |
| CN101833234B true CN101833234B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910300860 Expired - Fee Related CN101833234B (en) | 2009-03-13 | 2009-03-13 | Voice coil motor testing device and auxiliary device thereof |
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| CN (1) | CN101833234B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809368B (en) * | 2012-11-14 | 2016-04-06 | 南昌欧菲光电技术有限公司 | Camera module automatic focusing function method of testing |
| CN102937701B (en) * | 2012-11-16 | 2014-12-10 | 信利光电股份有限公司 | Camera shooting module motor tester |
| 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 |
| CN104102087B (en) * | 2014-08-08 | 2016-09-28 | 深圳市世尊科技有限公司 | A kind of test device for micro-sound coil motor |
| CN105699898B (en) * | 2016-04-14 | 2018-08-17 | 昆山丘钛微电子科技有限公司 | VCM motor floats high test device and test method |
| CN105785707B (en) * | 2016-05-24 | 2018-11-02 | 昆山丘钛微电子科技有限公司 | VCM integrated performance test methods and system |
| CN106597193B (en) * | 2016-11-11 | 2019-01-04 | 歌尔股份有限公司 | Detection method, detection device and the instrument of camera module |
| CN109495737B (en) * | 2018-12-07 | 2020-09-08 | 重庆市天实精工科技有限公司 | Voice coil motor life test system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1819053A (en) * | 2005-02-07 | 2006-08-16 | 贵州南方汇通世华微硬盘有限公司 | Installation testing method of small hard-disk voice coil motor upper cover |
| CN2837860Y (en) * | 2005-10-18 | 2006-11-15 | 比亚迪股份有限公司 | Aging clamp for minisize motor aging machine |
| CN201111843Y (en) * | 2007-10-29 | 2008-09-10 | 东莞彩显有机发光科技有限公司 | Clamp for OLED aging testing |
-
2009
- 2009-03-13 CN CN 200910300860 patent/CN101833234B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1819053A (en) * | 2005-02-07 | 2006-08-16 | 贵州南方汇通世华微硬盘有限公司 | Installation testing method of small hard-disk voice coil motor upper cover |
| CN2837860Y (en) * | 2005-10-18 | 2006-11-15 | 比亚迪股份有限公司 | Aging clamp for minisize motor aging machine |
| CN201111843Y (en) * | 2007-10-29 | 2008-09-10 | 东莞彩显有机发光科技有限公司 | Clamp for OLED aging testing |
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|---|---|
| CN101833234A (en) | 2010-09-15 |
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