CN104931897B - A kind of device for the detection of LED lamp bead plate - Google Patents
A kind of device for the detection of LED lamp bead plate Download PDFInfo
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- CN104931897B CN104931897B CN201510422108.4A CN201510422108A CN104931897B CN 104931897 B CN104931897 B CN 104931897B CN 201510422108 A CN201510422108 A CN 201510422108A CN 104931897 B CN104931897 B CN 104931897B
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- 238000001514 detection method Methods 0.000 title claims abstract description 134
- 239000011324 bead Substances 0.000 title claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
A kind of device for the detection of LED lamp bead plate, including bedplate, fixing device and detection means are provided with bedplate, the detection means includes detection support and detection circuit arrangement, the detection support includes supporting plate, supporting plate is provided with cylinder, the cylinder rod of cylinder is provided with detection clamping plate, detection plate is provided with detection clamping plate, test plug is provided with detection plate, test plug is provided with electric wire, test plug is connected with detection circuit arrangement by electric wire, the fixing device includes fixed plate, fixed plate is provided with fixed seat, the fixed plate is provided with multiple first screwed holes, the fixed seat is coordinated by bolt and the first screwed hole to be fixed in fixed plate, limited post is provided with fixed seat.Because the position of the through hole of different types of LED lamp bead plate is different, fixed seat is to coordinate to be fixed in fixed plate by bolt and the first screwed hole, by changing relative position of the fixed seat in fixed plate the limited post of fixed seat can be made to coordinate with the through hole of LED lamp bead plate.
Description
Technical field
The present invention relates to LED illumination to detect instrument field, and in particular to a kind of device for the detection of LED lamp bead plate.
Background technology
LED lamps have that small volume, power consumption are low, service life is long, low power consuming, high brightness, low in calories, environmentally friendly, sturdy and durable
The advantages that, it is deep in recent years to be praised highly by industry.During production, the test of various performances can be also carried out to LED lamp bead plate,
When carrying out short-circuit test to LED lamp bead plate, because not designing setting for correlation specifically for the test in existing technology
It is standby, therefore the efficiency detected is very low, can not fix LED lamp bead plate well and be detected, detection is also inconvenient.Work as detection
It is very not convenient for production detection, it is necessary to be equipped with fixing device corresponding with LED lamp bead plate when different LED lamp bead plate.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of detection safe operation it is quick, can be according to different model
LED lamp bead plate carrys out the device for being used for the detection of LED lamp bead plate of regulation fixing apparatus.
In order to solve the above-mentioned technical problem, the present invention includes bedplate, and fixing device is provided with bedplate and detection fills
Put, the detection means includes detection support and detection circuit arrangement, and the detection support includes two supporting plates, in two branch
A cylinder is respectively provided with frame plate, the cylinder rod of each cylinder is provided with a detection clamping plate, is provided between two detection clamping plates
Detection plate, test plug is provided with detection plate, test plug is electrically connected with detection circuit arrangement, and the fixing device is in
The lower section of detection plate, the fixing device include fixed plate and fixed seat, and fixed plate is provided with fixed seat, is provided with fixed seat
Limited post, is provided with two shift knobs and pneumatic means on bedplate, pneumatic means respectively with cylinder and two shift knobs
Connection, time-delay mechanism is provided with detection circuit arrangement, delay switch is provided with bedplate, delay switch is in detection plate
Lower section, time-delay mechanism are connected with delay switch and detection circuit arrangement respectively.When whether detection LED lamp bead plate is short-circuit, by LED
The limited post of through hole and fixed seat on pearl plate coordinates, and LED lamp bead plate is fixed on the securing means, then operating personnel's both hands
Two shift knobs are pinned simultaneously, start pneumatic means, pneumatic means, which starts cylinder, makes the lever drives detection clamping plate of cylinder past
Lower motion, detection clamping plate drive detection plate is down in motion process, and the test plug in detection plate at LED lamp bead plate detection with connecing
Touch and coordinate, while detection plate acts on delay switch, start-up study device, time-delay mechanism plug to be detected is examined with LED lamp bead plate
The fully mated rear detection circuit arrangement that starts detects to LED lamp bead plate at survey, so operates convenient and swift, because not
The position of the through hole of the LED lamp bead plate of same type is different, and fixed seat is detachably arranged in fixed plate, can pass through
Change relative position of the fixed seat in fixed plate, the limited post of fixed seat is coordinated with the through hole of LED lamp bead plate, so as to be applicable
Property is very wide.Because operating personnel must both hands pin two shift knobs simultaneously and could start pneumatic means, can so avoid
Hand is pushed down by pneumatic means, safe operation.
As a further improvement on the present invention, the first pillar, fixed plate and first are provided between fixed plate and bedplate
Pillar is bolted mode and connected.
As a further improvement on the present invention, multiple the first screwed holes in matrix distribution are provided with the fixed plate,
The fixed seat is coordinated by bolt and the first screwed hole to be fixed in fixed plate.
As a further improvement on the present invention, the first screwed hole with the longitudinal sides parallel of fixed plate is provided with fixed plate
Group, the quantity of the first screwed hole group is seven groups, and the spacing of the first screwed hole group of two adjacent groups is equal, every group of first screwed hole group
Including nine the first screwed holes.
As a further improvement on the present invention, mounting hole and mounting seat are provided with detection plate, inspection is provided with mounting hole
Plug is surveyed, test plug is provided with electric wire, and in mounting seat, test plug is connected with detection circuit arrangement by electric wire for electric wire holding
Connect.Because electric wire be holding in mounting seat, can so prevent that electric wire from arranging confusion in detection plate, it is convenient to arrange detection
The arrangement of electric wire.
As a further improvement on the present invention, the second pillar, supporting plate and second are provided between supporting plate and bedplate
Pillar is bolted mode and connected.
As a further improvement on the present invention, clip slot, the detection plate and two clip slots are provided with the detection clamping plate
It is located at merging between detection clamping plate.
As a further improvement on the present invention, the detection circuit arrangement includes detection single-chip microcomputer, adjusting switch and two
More than detection amplifying circuit, the adjusting switch with detection single-chip microcomputer be connected, it is described detect amplifying circuit including diode D1,
Diode D2, diode D3, light emitting diode D4, light emitting diode D5, NPN triode Q1, NPN triode Q2, NPN triode
Q3, NPN triode Q4, NPN triode Q5, PNP triode Q6, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electricity
R6, resistance R7, resistance R8, resistance R9, resistance R10 and external device are hindered, diode D1 positive pole is connected with detection single-chip microcomputer, and two
Pole pipe D1 negative pole is connected with resistance R1 one end, and the resistance R1 other end is connected with diode D3 positive pole, diode D3's
Negative pole is connected with NPN triode Q2 base stage, and NPN triode Q2 colelctor electrode is connected with resistance R10 one end, resistance R10's
The other end is connected with PNP triode Q6 base stage, PNP triode Q6 the emitter stage positive pole with light emitting diode D4, hair respectively
Optical diode D5 positive pole is connected with external power supply, and PNP triode Q6 colelctor electrode is connected with external device, light emitting diode D4
Negative pole be connected with resistance R6 one end, the resistance R6 other end is connected with NPN triode Q4 colelctor electrode, NPN triode Q4
Base stage be connected with resistance R5 one end, NPN triode Q4 grounded emitter, the resistance R5 other end connects with external device
Connect, light emitting diode D5 negative pole is connected with resistance R8 one end, and the resistance R8 other end connects with NPN triode Q5 colelctor electrode
Connect, NPN triode Q5 base stage is connected with resistance R7 one end, NPN triode Q5 grounded emitter, the resistance R7 other end
It is connected with external device, diode D1 negative pole is connected with resistance R2 one end, and resistance the R2 other end and diode D2 are just
Pole connects, and the base stage of diode D2 negative pole and NPN triode Q1 connects, and the colelctor electrode of NPN triode Q1 is respectively with lighting two
Pole pipe D5 positive pole connects with PNP triode Q6 emitter stage, the emitter stage of NPN triode Q1 with respectively with NPN triode Q3
Base stage connected with resistance R3 one end, resistance R3 other end ground connection, NPN triode Q3 colelctor electrode and external device connect
Connect, NPN triode Q3 emitter stage is connected with resistance R4 one end, and resistance R4 other end ground connection, the test plug passes through
Electric wire is connected with the external device of connection detection circuit device, and the time-delay mechanism is connected with detection single-chip microcomputer.
With coordinating at LED lamp bead plate detection, each amplifying circuit that detects is connected test plug with the lamp bead accordingly detected, is led to
After upper electricity, the detected lamp bead on LED lamp bead plate is controlled to light by detecting single-chip microcomputer, it is corresponding to detect on amplifying circuit
Light emitting diode D4 and light emitting diode D5 can light, when the lamp bead of being not detected on LED lamp bead plate occurs short-circuit,
Because short circuit current very little, operating personnel are difficult to observe that the lamp bead being not detected at lights, and single-chip microcomputer sends signal triggering two
Pole pipe D1 paths, turn on NPN triode Q2 by diode D3, so that NPN triode Q5 is turned on, because short circuit current leads to
Cross external device via the NPN triode Q5 of conducting to amplify, so that light emitting diode D5 conductings are luminous, single-chip microcomputer sends signal
Diac D1 paths, turn on NPN triode Q1 by diode D2, so that NPN triode Q4 is turned on, because short-circuit
Electric current is amplified by external device via the NPN triode Q4 of conducting, so that light emitting diode D4 conductings are luminous, thus may be used
Whether the lamp bead being not detected at very easily knowing occurs short circuit.By switch detection single-chip microcomputer can be controlled to send electric current
Frequency.
As a further improvement on the present invention, the quantity of the detection amplifying circuit is ten.
In summary, it is an advantage of the invention that detection safe operation it is quick, can according to the LED lamp bead plate of different model come
Regulation fixing apparatus.
Brief description of the drawings
It is next with reference to the accompanying drawings and detailed description that the present invention will be further described in detail.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the detection plate of the present invention.
Fig. 3 is the schematic diagram of the detection circuit arrangement of the present invention.
Fig. 4 is the circuit diagram of the detection amplifying circuit of the present invention.
Embodiment
As shown in Fig. 1 to Fig. 2, the present invention includes bedplate 1, and fixing device and detection means, institute are provided with bedplate 1
Stating detection means includes detection support and detection circuit arrangement 2, and the detection support includes two supporting plates 3, in supporting plate 3 and
The second pillar 4 is provided between bedplate 1, supporting plate 3 is bolted mode with the second pillar 4 and is connected, in two supporting plates 3
On be respectively provided with a cylinder 5, the cylinder rod of each cylinder 5 is provided with a detection clamping plate 6, and folder is provided with the detection clamping plate 6
Groove 7, detection plate 8 is provided between two detection clamping plates 6, the detection plate 8 matches somebody with somebody to merge with two clip slots 7 is located at detection clamping plate 6
Between, mounting hole 9 and mounting seat 10 are provided with detection plate 8, is provided with test plug 11 at mounting hole 9, in test plug 11
Provided with electric wire 12, the holding of electric wire 12 is in mounting seat 10, and test plug 11 is connected with detection circuit arrangement 2 by electric wire 12, institute
The lower section that fixing device is in detection plate 8 is stated, the fixing device includes fixed plate 13 and fixed seat 16, at fixed plate 13 and bottom
The first pillar 14 is provided between seat board 1, fixed plate 13 is bolted mode with the first pillar 14 and is connected, in fixed plate 13
The first screwed hole group provided with the longitudinal sides parallel with fixed plate 13, the quantity of the first screwed hole group is seven groups, two adjacent groups
The spacing of first screwed hole group is equal, and every group of first screwed hole group includes nine the first screwed holes 15, and the fixed seat 16 passes through
Bolt and the first screwed hole 15, which coordinate, to be fixed in fixed plate 13, and limited post 17 is provided with fixed seat 16, is set on bedplate 1
There are two shift knobs 18 and pneumatic means, pneumatic means is connected with cylinder 5 and two shift knobs 18 respectively, in detection circuit
Device 2 is provided with time-delay mechanism, and delay switch 19 is provided with bedplate 1, and delay switch 19 is in the lower section of detection plate 8, prolonged
When device respectively with delay switch 19 and detection circuit arrangement 2 be connected.When whether detection LED lamp bead plate is short-circuit, by LED lamp bead plate
On through hole and the limited post 17 of fixed seat 16 coordinate, LED lamp bead plate is fixed on the securing means, then operating personnel's both hands
Two shift knobs 18 are pinned simultaneously, start pneumatic means, pneumatic means, which starts cylinder 5, makes the lever drives of cylinder 5 detect folder
Plate 6 down moves, and detection clamping plate 6 drives detection plate 8 down in motion process, test plug 11 and LED lamp bead in detection plate 8
It is engaged at plate detection, while detection plate 8 acts on delay switch 19, start-up study device, time-delay mechanism plug to be detected
11 detect with the fully mated rear detection circuit arrangement 2 that starts at LED lamp bead plate detection to LED lamp bead plate, so operate
Next convenient and swift, because the position of the through hole of different types of LED lamp bead plate is different, fixed seat 16 is by bolt and first
Screwed hole, which coordinates, to be fixed in fixed plate 13, can be made solid by changing relative position of the fixed seat 16 in fixed plate 13
The limited post 17 of reservation 16 coordinates with the through hole of LED lamp bead plate, so as to which applicability is very wide.Because electric wire 12 is holding in mounting seat
On 10, it can so prevent that electric wire 12 from arranging confusion in detection plate 8, the convenient arrangement for arranging detection electric wire 12.
As shown in Fig. 3 to Fig. 4, the detection circuit arrangement 2 includes detection single-chip microcomputer 20, adjusting switch 21 and ten detections
Amplifying circuit 22, the adjusting switch 21 are connected with detection single-chip microcomputer 20, and the detection amplifying circuit 22 includes diode D1, two
Pole pipe D2, diode D3, light emitting diode D4, light emitting diode D5, NPN triode Q1, NPN triode Q2, NPN triode
Q3, NPN triode Q4, NPN triode Q5, PNP triode Q6, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electricity
R6, resistance R7, resistance R8, resistance R9, resistance R10 and external device are hindered, diode D1 positive pole is connected with detection single-chip microcomputer 20,
Diode D1 negative pole is connected with resistance R1 one end, and the resistance R1 other end is connected with diode D3 positive pole, diode D3
Negative pole be connected with NPN triode Q2 base stage, NPN triode Q2 colelctor electrode is connected with resistance R10 one end, resistance R10
The other end be connected with PNP triode Q6 base stage, PNP triode Q6 emitter stage respectively the positive pole with light emitting diode D4,
Light emitting diode D5 positive pole is connected with external power supply, and PNP triode Q6 colelctor electrode is connected with external device, light emitting diode
D4 negative pole is connected with resistance R6 one end, and the resistance R6 other end is connected with NPN triode Q4 colelctor electrode, NPN triode
Q4 base stage is connected with resistance R5 one end, NPN triode Q4 grounded emitter, and resistance the R5 other end and external device connect
Connect, light emitting diode D5 negative pole is connected with resistance R8 one end, and the resistance R8 other end connects with NPN triode Q5 colelctor electrode
Connect, NPN triode Q5 base stage is connected with resistance R7 one end, NPN triode Q5 grounded emitter, the resistance R7 other end
It is connected with external device, diode D1 negative pole is connected with resistance R2 one end, and resistance the R2 other end and diode D2 are just
Pole connects, and the base stage of diode D2 negative pole and NPN triode Q1 connects, and the colelctor electrode of NPN triode Q1 is respectively with lighting two
Pole pipe D5 positive pole connects with PNP triode Q6 emitter stage, the emitter stage of NPN triode Q1 with respectively with NPN triode Q3
Base stage connected with resistance R3 one end, resistance R3 other end ground connection, NPN triode Q3 colelctor electrode and external device connect
Connect, NPN triode Q3 emitter stage is connected with resistance R4 one end, resistance R4 other end ground connection, and the test plug 11 is logical
Cross electric wire 12 to be connected with the external device 23 of connection detection circuit device 2, the time-delay mechanism is connected with detection single-chip microcomputer 20.
With coordinating at LED lamp bead plate detection, each amplifying circuit 22 that detects connects test plug 11 with the lamp bead accordingly detected
Connect, after being electrified, control the detected lamp bead on LED lamp bead plate to light by detecting single-chip microcomputer 20, corresponding detection is put
Light emitting diode D4 and light emitting diode D5 on big circuit 22 can light, when the lamp bead being not detected on LED lamp bead plate
When generation is short-circuit, single-chip microcomputer sends signal diac D1 paths, turns on NPN triode Q2 by diode D3, so as to
Turn on NPN triode Q5, because short circuit current is amplified by external device via the NPN triode Q5 of conducting, so that hair
Optical diode D5 conductings are luminous, and single-chip microcomputer sends signal diac D1 paths, leads NPN triode Q1 by diode D2
It is logical, so that NPN triode Q4 is turned on, because short circuit current is amplified by external device via the NPN triode Q4 of conducting, from
And make light emitting diode D4 conductings luminous, it thus can very easily know whether the lamp bead being not detected at occurs short circuit.
The frequency for detecting single-chip microcomputer 20 and sending electric current can be controlled by adjusting switch 21.
Claims (8)
- A kind of 1. device for the detection of LED lamp bead plate, it is characterised in that：Including bedplate, fixed dress is provided with bedplate Put and detection means, the detection means include detection support and detection circuit arrangement, the detection support includes two supports Plate, a cylinder is respectively provided with two supporting plates, the cylinder rod of each cylinder is provided with a detection clamping plate, in two detection folders Detection plate is provided between plate, test plug is provided with detection plate, test plug is electrically connected with detection circuit arrangement, described solid Determine the lower section that device is in detection plate, the fixing device includes fixed plate and fixed seat, and fixed seat is detachably arranged in solid On fixed board, limited post is provided with fixed seat, two shift knobs and pneumatic means, pneumatic means difference are provided with bedplate It is connected with cylinder and two shift knobs, is provided with time-delay mechanism on detection circuit arrangement, delay switch is provided with bedplate, Delay switch is in the lower section of detection plate, and time-delay mechanism is connected with delay switch and detection circuit arrangement respectively, in detection plate Provided with mounting hole and mounting seat, test plug is provided with mounting hole, test plug is provided with electric wire, and electric wire holding is in mounting seat On, test plug is connected with detection circuit arrangement by electric wire.
- 2. the device for being used for the detection of LED lamp bead plate as described in claim 1, it is characterised in that：Fixed plate and bedplate it Between be provided with the first pillar, fixed plate is bolted mode with the first pillar and is connected.
- 3. the device for being used for the detection of LED lamp bead plate as described in claim 1, it is characterised in that：It is provided with the fixed plate Multiple the first screwed holes in matrix distribution, the fixed seat is coordinated by bolt and the first screwed hole to be fixed in fixed plate.
- 4. the device for being used for the detection of LED lamp bead plate as described in claim 3, it is characterised in that：It is provided with fixed plate with consolidating First screwed hole group of the longitudinal sides parallel of fixed board, the quantity of the first screwed hole group is seven groups, the first screwed hole of two adjacent groups The spacing of group is equal, and every group of first screwed hole group includes nine the first screwed holes.
- 5. the device for being used for the detection of LED lamp bead plate as described in claim 1, it is characterised in that：Supporting plate and bedplate it Between be provided with the second pillar, supporting plate is bolted mode with the second pillar and is connected.
- 6. the device for being used for the detection of LED lamp bead plate as described in claim 1, it is characterised in that：Set on the detection clamping plate There is clip slot, the detection plate matches somebody with somebody to merge with two clip slots to be located between detection clamping plate.
- 7. the device for being used for the detection of LED lamp bead plate as described in claim 1, it is characterised in that：The detection circuit arrangement bag Detection single-chip microcomputer, adjusting switch and more than two detection amplifying circuits are included, the adjusting switch is connected with detection single-chip microcomputer, institute Stating detection amplifying circuit includes diode D1, diode D2, diode D3, light emitting diode D4, light emitting diode D5, NPN tri- Pole pipe Q1, NPN triode Q2, NPN triode Q3, NPN triode Q4, NPN triode Q5, PNP triode Q6, resistance R1, electricity Hinder R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10 and external device, two poles Pipe D1 positive pole with detection single-chip microcomputer be connected, diode D1 negative pole is connected with resistance R1 one end, the resistance R1 other end and Diode D3 positive pole connection, diode D3 negative pole are connected with NPN triode Q2 base stage, NPN triode Q2 colelctor electrode It is connected with resistance R10 one end, the resistance R10 other end is connected with PNP triode Q6 base stage, PNP triode Q6 transmitting The positive pole with light emitting diode D4, light emitting diode D5 positive pole and external power supply are connected respectively for pole, PNP triode Q6 current collection Pole is connected with external device, and light emitting diode D4 negative pole is connected with resistance R6 one end, resistance the R6 other end and the poles of NPN tri- Pipe Q4 colelctor electrode connection, NPN triode Q4 base stage are connected with resistance R5 one end, NPN triode Q4 grounded emitter, The resistance R5 other end is connected with external device, and light emitting diode D5 negative pole is connected with resistance R8 one end, and resistance R8's is another One end is connected with NPN triode Q5 colelctor electrode, and NPN triode Q5 base stage is connected with resistance R7 one end, NPN triode Q5 Grounded emitter, the resistance R7 other end is connected with external device, and diode D1 negative pole is connected with resistance R2 one end, electricity The resistance R2 other end is connected with diode D2 positive pole, and diode D2 negative pole and the base stage of NPN triode Q1 connect, NPN tri- Pole pipe Q1 colelctor electrode is connected with light emitting diode D5 positive pole and PNP triode Q6 emitter stage respectively, NPN triode Q1 Emitter stage with NPN triode Q3 base stage and resistance R3 one end with being connected respectively, resistance R3 other end ground connection, the poles of NPN tri- Pipe Q3 colelctor electrode is connected with external device, and NPN triode Q3 emitter stage is connected with resistance R4 one end, and resistance R4's is another End ground connection, the test plug are connected by electric wire with the external device of connection detection circuit device, the time-delay mechanism and inspection Survey single-chip microcomputer connection.
- 8. the device for being used for the detection of LED lamp bead plate as described in claim 7, it is characterised in that：The detection amplifying circuit Quantity is ten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510422108.4A CN104931897B (en) | 2015-07-17 | 2015-07-17 | A kind of device for the detection of LED lamp bead plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510422108.4A CN104931897B (en) | 2015-07-17 | 2015-07-17 | A kind of device for the detection of LED lamp bead plate |
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| Publication Number | Publication Date |
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| CN104931897A CN104931897A (en) | 2015-09-23 |
| CN104931897B true CN104931897B (en) | 2018-03-13 |
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| CN201510422108.4A Expired - Fee Related CN104931897B (en) | 2015-07-17 | 2015-07-17 | A kind of device for the detection of LED lamp bead plate |
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| CN107064825A (en) * | 2017-06-08 | 2017-08-18 | 常东记 | A kind of LED multifunctional testers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429464Y (en) * | 2009-04-09 | 2010-03-24 | 张九六 | Automatic test spectrometer for united LED |
| CN101995326B (en) * | 2009-08-25 | 2012-11-28 | 上海诚测电子科技发展有限公司 | Test bed for testing comprehensive performance of LED modules |
| JP5901966B2 (en) * | 2011-01-13 | 2016-04-13 | ローム株式会社 | LED short detection circuit, LED driving device, LED lighting device, vehicle |
| CN202256542U (en) * | 2011-07-22 | 2012-05-30 | 深圳市金华光科技有限公司 | Light emitting diode (LED) enhanced computer detection instrument system |
| CN103076532B (en) * | 2012-12-28 | 2016-12-07 | 上海澳星照明电器制造有限公司 | A kind of LED failure testing circuit and detection method |
| CN103401209B (en) * | 2013-08-02 | 2016-04-27 | 广州视源电子科技股份有限公司 | LED backlight short-circuit protection circuit |
| CN104444182A (en) * | 2014-10-31 | 2015-03-25 | 广东泰卓光电科技股份有限公司 | LED streetlamp assembling and testing production line |
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Granted publication date: 20180313 |