CN104730444A - Multifunctional LED lamp test machine - Google Patents
Multifunctional LED lamp test machine Download PDFInfo
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- CN104730444A CN104730444A CN201510180439.1A CN201510180439A CN104730444A CN 104730444 A CN104730444 A CN 104730444A CN 201510180439 A CN201510180439 A CN 201510180439A CN 104730444 A CN104730444 A CN 104730444A
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Abstract
The invention discloses a multifunctional LED lamp test machine which comprises a PLC (programmable logic controller) main unit, detection modules, changeover switches and the like. Eight LED direct-current power detection circuits and eight LED lamp detection circuits can be respectively controlled by eight contacts of a 16-channel relay control module, the detection modules are sequentially serially connected onto the eight LED direct-current power detection circuits and the LED lamp detection circuits by other eight contacts, the eight LED direct-current power detection circuits are connected to output ends of transformers by the changeover switches, the detection modules include alternating-current and direct-current detection modules, LED driving power sources and light emitting diodes are arranged on the LED direct-current power detection circuits when direct-current power sources are about to be detected, and LED lamps are arranged on the LED lamp detection circuits when about to be detected. The multifunctional LED lamp test machine has the advantages that existing current situations with backward LED lamp delivery inspection means and simple detection items can be changed, and the multifunctional LED lamp test machine can assist in product performance study analysis and improved designs.
Description
Technical field
The present invention relates to electrical equipment detection technique field, more particularly, relate to a kind of Multifunctional LED lamp test machine.
Background technology
The domestic factory having many production LED at present, but, the performance detection apparatus of LED is but quite simple, in being expert at, the detection means very backwardness of LED, most producer is at product export first 8 hours energizing tests, power factor for LED can only be inspected by random samples, and be detected by the hand-held multimeter of workman, personal error is large, does not more have special system automatically to gather product data, sets up product reliability database.
Summary of the invention
The present invention, for solving the deficiencies in the prior art, provides the Multifunctional LED lamp test machine of a kind of detection means advanced person, can carry out the detection of many set products simultaneously, detects power factor (PF), power, the CO of finished product or LED direct supply
2the parameters such as discharge capacity.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Multifunctional LED lamp test machine, comprise the input of 220V power supply, transformer, PLC main frame, also comprise 16 tunnel relay control module, detection module, change-over switch, eight contacts of described 16 tunnel relay control module can control eight LED direct supply testing circuits and eight LED testing circuits respectively, other eight contacts are for being serially connected in eight LED direct supply testing circuits and LED testing circuit sequentially by described detection module, wherein, eight LED direct supply testing circuits are connected to the output terminal of transformer by change-over switch, described detection module comprises interchange detection module and DC detecting module, when needs detect LED direct supply, described LED direct supply testing circuit arranges LED drive power and load, when needs detect LED, described LED testing circuit arranges LED.
Described PLC main frame is connected with 16 tunnel relay control module, detection module communication by 485 buses.
Described PLC main frame connects sound light alarming circuit.
Described Multifunctional LED lamp test machine comprises multiple 16 tunnel relay control module be connected in parallel.
Described interchange detection module is serially connected in change-over switch front, and described DC detecting module is serially connected in change-over switch rear.
Compared with prior art, the invention has the beneficial effects as follows:
Multifunctional LED lamp test machine of the present invention changes that current LED factory inspection means are backward, the simple present situation of test item, and offers help for the performance study analysis of product, improvement design.
Multifunctional LED lamp test machine of the present invention is applicable to the product export inspection of laboratory or manufacturer, can carry out the test of many group LED simultaneously.For LED burn-in test project, system can test the process data collection of front and back and described point, generates aging of product curve, for the reliability consideration of LED provides authentic data.
Accompanying drawing explanation
Fig. 1 is the PLC control circuit schematic diagram of Multifunctional LED lamp test machine of the present invention.
Fig. 2 is Multifunctional LED lamp test machine schematic diagram of the present invention.
Fig. 3 is the relay control module electrical control schematic diagram of Multifunctional LED lamp test machine of the present invention.
Fig. 4 is the separate unit test machine net control figure of Multifunctional LED lamp test machine of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
See Fig. 1-4, Multifunctional LED lamp test machine of the present invention comprises the input of 220V power supply, transformer, PLC main frame, also comprise 16 tunnel relay control module, detection module, eight contacts of described 16 tunnel relay control module can control eight LED direct supply testing circuits respectively, other eight contacts are for being serially connected in eight LED direct supply testing circuits sequentially by described detection module, described PLC main frame is by 485 buses and 16 tunnel relay control module, detection module communication connects, described detection module comprises interchange detection module and DC detecting module, described LED direct supply testing circuit is provided with LED drive power to be detected and load (as light emitting diode or resistance).
Test machine adopts PLC control technology, and RS485 bus is carried out data and sent PLC main frame to, connects PC/ touch-screen by RS232 interface, carries out data display and checks.By the input voltage (being 220V, 110V, 85V respectively) of the groupings such as the control of main frame output signal KA1, KA2, KA3, after the data gathered compare, output alarm, is checked touch-screen by sound/light prompting, also be can be accessed by abnormal alarm module when finished product test.The RS485 serial ports of PLC is by 485 buses and host communication, and Y0, Y1, Y2 port of PLC connects KA1-KA3 tri-relays respectively, provides three kinds of AC power to select.Separate unit test machine network settings 255# address, except interchange detection module, DC detecting module employ except 1# address, 2# address, can also connect 253 16 tunnel relay control module.Each 16 tunnel relay control module can be tested 8 LED finished product lamps.
As shown in Figure 2,220V exchanges through transformer, exportable 220V(KA1) or 110V(KA2) or 85V(KA3) three kinds of AC power, to adapt to the grid requirements in country variant/area.For LED finished product, use interchange detection module to detect, the project of detection comprises LED electric current, voltage, power, power factor, CO
2discharge capacity.Exchanging detection module 1 is a data acquisition and communication module, it and PLC host communication.As shown in Figure 3,16 tunnel relay control module have KA3#1-KA3#16 totally 16 contacts, wherein KA3#1-KA3#8 is for connecting 8 LED, KA3#9-KA3#16 is used for interchange detection module to be connected in series in the test circuit of 8 LED, namely, in a relay module, electric current, voltage, power, power factor, the CO of 8 LED can be detected sequentially by exchanging detection module
2discharge capacity.Exemplarily, in fig. 2, the testing circuit structure of No. one of 16 tunnel relay control module, No. two, No. three three LED finished product lamps (representing three LED respectively) is only denoted.After test starts, PLC sends signal, 16 tunnel relay control module work, trigger a wherein switch closed (such as KA3#1), make the LED bright light of a load, after LED pre-operation a period of time, PLC signals, closed by 16 tunnel relay control module gauge tap KA3#9, namely interchange detection module is connected on the circuit of a load, realizes the parameter detecting to this LED.
Because LED comprises luminophor and direct supply two parts, when Multifunctional LED lamp test machine needs to detect the parameter of direct supply, undertaken by DC detecting module 2, DC detecting module can complete the detection of direct current voltage, power, power factor (PF).For LED drive power (direct supply), because it is from AC-DC, have energy loss through overcommutation, filtering, by test circuit image data, conversion ratio can be calculated, test circuit data acquisition, carry out the calculating of conversion ratio at main frame, and carry out qualified judgement.By change-over switch 3, primary input power supply connects the driving power of DC detecting module.
When needing the direct supply detecting LED, the direct supply of LED is connected on driving power 4, and the light emitting diode of LED is connected on No. one to No. eight light emitting diode 5 even load port of test circuit.When pressing change-over switch, exchange driving power 4 and light emitting diode 5 that DC detecting module is connected in input, exchange detection module 1 and detect the input parameter of powering to driving power, DC detecting module detects the output parameter of driving power.PLC is then allowed by relay switch contacts and exchanges and the data of DC Module from low paramount collection every lamp.Concrete example is as follows: PLC sends signal, 16 tunnel relay control module work, trigger a wherein switch closed (such as KA3#1), make a light emitting diode bright light, meanwhile, PLC signals, and is closed by 16 tunnel relay control module gauge tap KA3#9, namely exchanging detection module and DC detecting block coupled in series on the circuit of a light emitting diode and driving power, the parameter detecting to this driving power is realized.When detecting LED direct supply, test machine is not with finished product load.
Below openly specific embodiments of the invention are only; do not form limiting the scope of the invention; for general technical staff of the technical field of the invention; do not departing under general idea prerequisite of the present invention; according to technical solution of the present invention do without the need to through the change of creative work and replacement, all should drop within protection scope of the present invention.
Claims (5)
1. a Multifunctional LED lamp test machine, comprise the input of 220V power supply, transformer, PLC main frame, it is characterized in that: also comprise 16 tunnel relay control module, detection module, change-over switch, eight contacts of described 16 tunnel relay control module can control eight LED direct supply testing circuits and eight LED testing circuits respectively, other eight contacts are for being serially connected in eight LED direct supply testing circuits and LED testing circuit sequentially by described detection module, wherein, eight LED direct supply testing circuits are connected to the output terminal of transformer by change-over switch, described detection module comprises interchange detection module and DC detecting module, when needs detect LED direct supply, described LED direct supply testing circuit arranges LED drive power and load, when needs detect LED, described LED testing circuit arranges LED.
2. Multifunctional LED lamp test machine according to claim 1, is characterized in that: described PLC main frame is connected with 16 tunnel relay control module, detection module communication by 485 buses.
3. Multifunctional LED lamp test machine according to claim 2, is characterized in that: described PLC main frame connects sound light alarming circuit.
4. the Multifunctional LED lamp test machine according to claim 1 or 2 or 3, is characterized in that: described Multifunctional LED lamp test machine comprises multiple 16 tunnel relay control module be connected in parallel.
5. Multifunctional LED lamp test machine according to claim 4, is characterized in that: described interchange detection module is serially connected in change-over switch front, and described DC detecting module is serially connected in change-over switch rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180439.1A CN104730444A (en) | 2015-04-16 | 2015-04-16 | Multifunctional LED lamp test machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180439.1A CN104730444A (en) | 2015-04-16 | 2015-04-16 | Multifunctional LED lamp test machine |
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| CN201510180439.1A Pending CN104730444A (en) | 2015-04-16 | 2015-04-16 | Multifunctional LED lamp test machine |
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Cited By (2)
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|---|---|---|---|---|
| CN109444704A (en) * | 2018-10-25 | 2019-03-08 | 江苏理工学院 | LEDbulb lamp photoelectric properties on-line detecting system |
| CN113960456A (en) * | 2021-12-20 | 2022-01-21 | 深圳市永达电子信息股份有限公司 | Automatic detection device and method for micro-damage of circuit interface |
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Inventor after: Yang Xiaodong Inventor after: Deng Yulin Inventor after: Zeng Zhaojun Inventor after: Mao Xingbiao Inventor before: Yang Xiaodong Inventor before: Deng Yulin Inventor before: Zeng Zhaojun Inventor before: Mao Xingbiao |
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Application publication date: 20150624 |