CN202939273U - LED test device and LED test system - Google Patents
LED test device and LED test system Download PDFInfo
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- CN202939273U CN202939273U CN 201220655541 CN201220655541U CN202939273U CN 202939273 U CN202939273 U CN 202939273U CN 201220655541 CN201220655541 CN 201220655541 CN 201220655541 U CN201220655541 U CN 201220655541U CN 202939273 U CN202939273 U CN 202939273U
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Abstract
The embodiment of the utility model discloses an LED test device and an LED test system. The LED test device comprises a power supply unit, a bearing body, a vibration generator, a light shield and a photometer, wherein the power supply unit is connected with and supplies power to an LED test piece to be tested, the bearing body is used for bearing the LED test piece, the vibration generator is used for driving the bearing body and the LED test piece on the bearing body to vibrate, the bottom surface of the light shield is provided with a through hole through which the bearing body passes to be positioned in the light shield to enable the light shield to cover the LED test piece, and the photometer is installed on the light shield and collects diffuse reflection light in the light shield to measure optical parameters of the LED test piece. According to the utility model, due to the adoption of the technical means of arranging the through hole on the bottom surface of the light shield and passing the bearing body through the through hole to position the bearing body in the light shield so as to enable the light shield to cover the LED test piece, performance parameters such as light, color, electricity and the like of the LED test piece can be detected online in real time, and test errors caused by the change of stress condition and the repeated installation and disassembly of the LED test piece are avoided.
Description
Technical field
The utility model relates to LED parameter testing field, relates in particular to a kind of LED proving installation and system.
Background technology
In order to investigate LED in actual use, the impact of environmental factor (such as vibration) on its performance, need to there be correlation test equipment to come simulating practical service environment, LED is carried out the vibration reliability test, by analyzing failure cause and the failure mode of given the test agent, the subsequent design of guide product.
At present current LED vibration reliability method of testing is: same model, with batch the LED product in, extract the sample of some, measure its performance parameter before test and in process of the test, extrapolate the LED estimated performance of this model, this batch according to corresponding algorithm.In the vibration reliability test process, when needs are measured the performance parameter of LED, stop vibration, and the LED sample on support is pulled down successively, be positioned in integrating sphere one by one and measure, measure and again the LED sample is reinstalled on support after complete, continue follow-up test.The problem of its existence is:
1) in whole reliability testing process, need to repeatedly install, dismantle the LED sample, increased a large amount of manpowers and time cost;
2) in the process of installation and removal repeatedly, existence causes the labile factor of LED properties of sample change and affects final testing result;
3) in whole process of the test, when needs are measured the performance parameter of LED sample, need to interrupt vibration stress, this stress condition that occurs in process of the test changes unpredictable on the impact of whole test findings.
The utility model content
The utility model embodiment technical matters to be solved is, a kind of online LED proving installation that detects in real time the LED vibration reliability of realizing is provided.
The utility model embodiment another technical matters to be solved is, a kind of online LED test macro that detects in real time the LED vibration reliability of realizing is provided.
In order to solve the problems of the technologies described above, the utility model embodiment has proposed a kind of LED proving installation, comprises the power supply unit that connects and be LED test specimen power supply to be measured, and the LED proving installation also comprises: the supporting body that is used for carrying LED test specimen; Be used for to drive supporting body and on the vibration machine of LED test specimen vibration; The bottom surface is provided with the light shield of through hole, and described supporting body passes that described through hole is placed in light shield so that light shield covers described LED test specimen; And be installed on light shield and gather the interior photometer of diffuse light so that the optical parametric of LED test specimen is measured of light shield.
Further, photometer comprises to be got the light unit and is connected in the photometry unit of getting the light unit by optical fiber, and the roof of light shield is provided with gets the light unit, also is provided with in light shield be used to blocking by the shadow shield of LED test specimen direct projection to the direct light of getting the light unit.
Further, described light shield is by a stent support, and the height of the height of support and vibration machine is complementary, so that light shield covers described LED test specimen.
Further, described supporting body is rigidly fixed on the vibration table of vibration machine.
Further, described vibration machine is the vibration machine of controlled adjustable electrodynamic type, electromagnetic type, mechanical type, fluid pressure type or the pneumatic type of vibration frequency, Oscillation Amplitude and time of vibration.
Further, described light shield is integrating sphere, temperature control box or moisture-heat test-box.
Correspondingly, the utility model embodiment also provides a kind of LED test macro, and it comprises: LED proving installation as above; And the controller that is connected in and controls described vibration machine, photometer and power supply unit co-ordination.
The beneficial effect of the utility model embodiment is: by the light shield bottom surface, through hole is set, supporting body passes that described through hole is placed in light shield so that light shield covers the technological means of described LED test specimen, thereby realized the online performance parameters such as light, look and electricity that detect in real time the LED test specimen, avoided the stress condition to change and repeatedly install, dismantle the LED test specimen and the test error introduced.
Description of drawings
Fig. 1 is the structural representation of the LED proving installation of the utility model embodiment.
Fig. 2 is the vertical view of the supporting body of LED proving installation shown in Figure 1.
Fig. 3 is the schematic flow sheet of the LED method of testing of the utility model embodiment.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can mutually combine, and below in conjunction with the drawings and specific embodiments, the utility model are described in further detail.
Please refer to Fig. 1 ~ Fig. 2, the utility model embodiment provides a kind of LED proving installation, and described LED proving installation comprises power supply unit 10, vibration machine 20, supporting body 30, light shield 40 and photometer 50.
Supporting body 30 is fixedly arranged on the vibration table 22 of vibration machine 20, is used for carrying LED test specimen 100 and under vibration machine 20 drives, drives described LED test specimen 100 synchronous vibrations.Particularly, described supporting body 30 is by being spirally connected or welding on the vibration table 22 that is rigidly fixed in vibration machine, supporting body 30 and described hole size and form fit, thereby, can easily the vibration table 22 of vibration machine 20 be put as in light shield 40.Supporting body 30 is preferably disc with described through hole, also can be rectangle, a plurality of pedestals 31 that evenly distribute on supporting body 30, and LED test specimen 100 is arranged on pedestal 31, and pedestal 31 is located in the equally distributed groove of supporting body 30 or on even curface.
In embodiment shown in Figure 1, light shield 40 bottom surfaces also are provided with a through wires hole, and each road power lead of power supply unit 10 is connected in LED test specimen 100 through this through wires hole from the bottom of supporting body 30; By described mode, power lead is set, power lead is decreased to minimum to the impact of vibration-testing degree of accuracy.In present embodiment, scribble the whitewash layer of high diffuse reflectance on the inside surface of light shield 40, particularly, described whitewash is preferably barium sulphate.
Photometer 50 is installed on light shield 40 and gathers the interior diffuse light of light shield 40 so that the optical parametric of LED test specimen 100 is measured.Particularly, photometer 50 comprises to be got light unit 51 and is connected in the photometry unit 52 of getting light unit 51 by optical fiber, the roof of light shield 40 is provided with gets light unit 51, also be provided with in light shield 40 be used to blocking by the shadow shield 42 of LED test specimen 100 direct projections to the direct light of getting light unit 51, guarantee to get light unit 51 by described shadow shield 42 and collected single diffusing, and then improved measuring accuracy.
Correspondingly, the utility model embodiment also provides a kind of LED test macro, and it comprises LED proving installation as above, and the controller (scheming not shown) that is connected in and controls described vibration machine 20, photometer 50 and power supply unit 10 co-ordinations.Particularly, described controller is integrated in a computing machine, be provided with supporting test procedure in described computing machine, vibration machine 20, photometer 50 and power supply unit 10 all can be controlled by the computing machine automatic synchronization, automatically recorded the performance parameters such as light, look and electricity of test period, vibration parameters and LED test specimen 100 by computing machine follow procedure set model, and according to the attenuation of LED test specimen 100 performance parameters, calculate the estimated performance of test specimen by related algorithm.
Please refer to Fig. 3, the utility model embodiment also provides a kind of LED method of testing, vibration machine 20, photometer 50 and power supply unit 10 all can be controlled by the computing machine automatic synchronization, automatically recorded the performance parameters such as light, look and electricity of test period, vibration parameters and LED test specimen 100 by computing machine follow procedure set model, and according to the attenuation of LED test specimen 100 performance parameters, calculate the estimated performance of LED test specimen 100 by related algorithm.
Described method comprises:
Preparation process S1: assemble the LED test macro, and the vibration parameters of this test is set by controller; Particularly, described LED test macro assembling process is: the supporting body 30 that LED test specimen 100 will be installed is fixed on vibration table 22 by web member, through hole by light shield 40 bottom surfaces covers described LED test specimen 100 with light shield 40, and each road power lead of power supply unit 10 is connected in LED test specimen 100 from the bottom of supporting body 30.
Vibrating step S2: drive 100 vibrations of LED test specimen according to described vibration parameters; Particularly, controller sends instruction according to described vibration parameters, and amplify 20 vibrations of rear drive vibration machine through power amplifier, and then the LED test specimen 100 that drives on supporting body 30 vibrates thereupon, the light that LED test specimen 100 sends is after getting light unit 51 collections,, realized the online of performance parameter of test specimen in vibration processes measured in real time to the photometry unit 52 by Optical Fiber Transmission.
Get photo measure step S3: get the diffuse light of light unit 51 Real-time Collection LED test specimen 100 correspondences and by controller, the optical parametric of LED test specimen 100 measured.In the first embodiment, described Real-time Collection is to measure in vibration processes always; In the second embodiment, described Real-time Collection is, is preset with interval time of measurement in controller, measures when reaching predetermined interval in vibration processes, and the interval was surveyed once in 1 hour or 2 hours; In the 3rd embodiment, described Real-time Collection is to measure in vibration processes always, and measures once after the vibration end again; In the 4th embodiment, described Real-time Collection is, is preset with interval time of measurement in controller, measure when reaching predetermined interval in vibration processes, and vibration measured once after finishing again.Wherein, measure after vibration finishes is that the situation that after vibration is finished, LED test specimen 100 parameters change also measures to improve measurement accuracy, by above-mentioned four kinds of embodiments, thereby need not repeatedly to install, dismantle with respect to prior art, need not interrupt vibration just measures, realized online detecting in real time, avoided the stress condition to change and repeatedly installed, dismantle the LED test specimen and the test error introduced.
As a kind of embodiment, described preparation process comprises that also boundary arranges substep: the decay limit parameter of this test is set, for example 30%; The described photo measure step of getting also comprises afterwards: determining step: judge whether current tested LED test specimen 100 exceeds set decay limit parameter, if finish this test.For example, the ratio that controller relatively judges the optical parametric that detects before optical parametric that vibration detects after stable and vibration stops test greater than 30% the time, and reports to the police by modes such as sound, light.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that do not break away from principle of the present utility model and spirit can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalency range thereof.
Claims (7)
1. a LED proving installation, comprise the power supply unit that connects and be LED test specimen power supply to be measured, it is characterized in that, the LED proving installation also comprises:
The supporting body that is used for carrying LED test specimen;
Be used for to drive supporting body and on the vibration machine of LED test specimen vibration;
The bottom surface is provided with the light shield of through hole, and described supporting body passes that described through hole is placed in light shield so that light shield covers described LED test specimen; And
Be installed on light shield and gather the interior photometer of diffuse light so that the optical parametric of LED test specimen is measured of light shield.
2. LED proving installation as claimed in claim 1, it is characterized in that, photometer comprises to be got the light unit and is connected in the photometry unit of getting the light unit by optical fiber, the roof of light shield is provided with gets the light unit, also is provided with in light shield be used to blocking by the shadow shield of LED test specimen direct projection to the direct light of getting the light unit.
3. LED proving installation as claimed in claim 1, is characterized in that, described light shield is by a stent support, and the height of the height of support and vibration machine is complementary, so that light shield covers described LED test specimen.
4. LED proving installation as claimed in claim 1, is characterized in that, described supporting body is rigidly fixed on the vibration table of vibration machine.
5. LED proving installation as claimed in claim 1, is characterized in that, described vibration machine is the vibration machine of controlled adjustable electrodynamic type, electromagnetic type, mechanical type, fluid pressure type or the pneumatic type of vibration frequency, Oscillation Amplitude and time of vibration.
6. LED proving installation as claimed in claim 1, is characterized in that, described light shield is integrating sphere, temperature control box or moisture-heat test-box.
7. a LED test macro, is characterized in that, described LED test macro comprises:
LED proving installation as described in any one in claim 1 to 6; And
Be connected in and control the controller of described vibration machine, photometer and power supply unit co-ordination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655541 CN202939273U (en) | 2012-11-23 | 2012-11-23 | LED test device and LED test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655541 CN202939273U (en) | 2012-11-23 | 2012-11-23 | LED test device and LED test system |
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| CN202939273U true CN202939273U (en) | 2013-05-15 |
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| CN 201220655541 Expired - Fee Related CN202939273U (en) | 2012-11-23 | 2012-11-23 | LED test device and LED test system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944826A (en) * | 2012-11-23 | 2013-02-27 | 深圳清华大学研究院 | LED testing device, system and method |
| CN104215414A (en) * | 2013-05-30 | 2014-12-17 | 海洋王（东莞）照明科技有限公司 | Lamp vibration test method |
| CN105181302A (en) * | 2015-10-12 | 2015-12-23 | 国网天津市电力公司 | Device for detecting LED brightness consistency in linear light source production process |
| CN105676149A (en) * | 2016-01-25 | 2016-06-15 | 系新电子技术（苏州）有限公司 | LED light bar detector |
| CN109269766A (en) * | 2018-09-10 | 2019-01-25 | 汽解放汽车有限公司 | Electric current continuous acquisition monitoring system and monitoring method during a kind of lamps and lanterns vibration test |
| CN110879135A (en) * | 2019-11-29 | 2020-03-13 | 昆山国显光电有限公司 | Optical testing device and optical testing method |
-
2012
- 2012-11-23 CN CN 201220655541 patent/CN202939273U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944826A (en) * | 2012-11-23 | 2013-02-27 | 深圳清华大学研究院 | LED testing device, system and method |
| CN102944826B (en) * | 2012-11-23 | 2016-08-17 | 深圳清华大学研究院 | LED tests device, system and method |
| CN104215414A (en) * | 2013-05-30 | 2014-12-17 | 海洋王（东莞）照明科技有限公司 | Lamp vibration test method |
| CN105181302A (en) * | 2015-10-12 | 2015-12-23 | 国网天津市电力公司 | Device for detecting LED brightness consistency in linear light source production process |
| CN105676149A (en) * | 2016-01-25 | 2016-06-15 | 系新电子技术（苏州）有限公司 | LED light bar detector |
| CN109269766A (en) * | 2018-09-10 | 2019-01-25 | 汽解放汽车有限公司 | Electric current continuous acquisition monitoring system and monitoring method during a kind of lamps and lanterns vibration test |
| CN110879135A (en) * | 2019-11-29 | 2020-03-13 | 昆山国显光电有限公司 | Optical testing device and optical testing method |
| CN110879135B (en) * | 2019-11-29 | 2021-08-10 | 昆山国显光电有限公司 | Optical testing device and optical testing method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20181123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |