CN102841321A - Alarm control circuit and alarm tool for lamp aging test - Google Patents
Alarm control circuit and alarm tool for lamp aging test Download PDFInfo
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- CN102841321A CN102841321A CN2011101709986A CN201110170998A CN102841321A CN 102841321 A CN102841321 A CN 102841321A CN 2011101709986 A CN2011101709986 A CN 2011101709986A CN 201110170998 A CN201110170998 A CN 201110170998A CN 102841321 A CN102841321 A CN 102841321A
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Abstract
The invention is suitable for the field of lamp detection, and provides an alarm control circuit and an alarm tool for a lamp aging test. The control circuit comprises a transformer T1, a rectification and filtering unit, a voltage stabilizing unit, a temperature control switch S1, a relay K1, a first switch unit, a second switch unit and a counter, wherein the temperature control switch S1 is immediately turned off when the temperature of the lamp exceeds a preset temperature; the relay K1 is switched off when the temperature control switch S1 is turned off so as to cut off the electric supply for the lamp; the first switch unit is switched off when the power of the lamp is cut off, and discharge is stopped; the second switch unit is used for charging breakover after the first switch unit is switched off, and a timing signal is output; and the counter is used for recording the power-off time of the lamp when receiving the timing signal. According to the alarm control circuit and the alarm tool for the lamp aging test disclosed by the invention, the lamp is powered off by the temperature control switch when the temperature is high, the power-off time is recorded to prevent the lamp from being burned due to the external fault, and detecting data is further revised according to the power-off time.
Description
Technical field
The invention belongs to the light fixture detection range, relate in particular to a kind of light fixture aging test alarm control circuit and warning frock thereof.
Background technology
At large-power light-emitting diodes (Light Emitting Diode; LED) in the aging test; The heat radiation of LED is the successful key of aging test, dispels the heat with fan usually at present, because the voltage of LED work is different with fan work voltage; So need two power supply power supplies of LED power supply and blower power supply; At this moment potential safety hazard will appear: as the power supply of fan damage cause fan can't work or as fan break down and cause fan to quit work or rotating speed descends, and the power work of LED is normal, then can cause because of the rising of LED temperature to burn out.
But this fault owing to non-LED itself causes LED to be burnt out, and can not draw LED light decay rule and because of the aging other problems that produces, influence testing result, and it is low to detect the data accuracy rate.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of light fixture aging test alarm control circuit, is intended to solve in the present light fixture aging test light fixture and burns owing to external fault causes temperature to raise, and detect the low problem of data accuracy rate.
The embodiment of the invention is to realize like this; A kind of light fixture aging test alarm control circuit is connected with light fixture through the light fixture D.C. regulated power supply, and said control circuit comprises transformer T1, rectification filtering unit and voltage regulation unit; The input end of said transformer T1 is connected with the mains electricity input end; The output terminal of said transformer T1 is connected with the input end of said rectification filtering unit, and the output terminal of said rectification filtering unit is connected with the input end of said voltage regulation unit, and said control circuit also comprises:
Temperature detect switch (TDS) S1; The temperature control end of said temperature detect switch (TDS) S1 is affixed on the heat radiator of said LED; The current input terminal of said temperature detect switch (TDS) S1 is connected with the output terminal of said voltage regulation unit; Be used for when the temperature of said light fixture is no more than preset temperature, remaining closed, when the temperature of said light fixture surpasses preset temperature, break off immediately;
Relay K 1; The moving contact of said relay K 1 is connected with the input end of said light fixture D.C. regulated power supply; The stationary contact of said relay K 1 is connected with said mains electricity input end; The coil of said relay K 1 is connected between the current output terminal and ground end of said temperature detect switch (TDS) S1, is used for that moving contact separates with stationary contact when said temperature detect switch (TDS) S1 disconnection, controls said civil power said light fixture is cut off the power supply; Moving contact and stationary contact adhesive are controlled said civil power said light fixture are supplied power again when said temperature detect switch (TDS) S1 is closed;
First switch element, the input end of said first switch element is connected with the current output terminal of said temperature detect switch (TDS) S1, is used for when said light fixture cuts off the power supply, keep turn-offing, when said light fixture is supplied power again, the conducting discharge;
The second switch unit; The control end of said second switch list is connected with the output terminal of said first switch element, and the input end of said second switch unit is connected with the output terminal of said voltage regulation unit, is used for having no progeny when said first switch element closes; The conducting of charging; The output timing signal after said first switch element conducting discharge, stops to export timing signal;
Counter, the input end of said counter is connected with the output terminal of said second switch list, and the output head grounding of said counter is used for during receiving said timing signal the power-off time of the said light fixture of record.
Another purpose of the embodiment of the invention is to provide a kind of light fixture aging test warning frock that adopts above-mentioned control circuit.
In embodiments of the present invention; Utilize temperature detect switch (TDS) when high temperature, light fixture to be done power down process; And the record power-off time, not because of external fault burns, reduced the probability of aging test risk with the protection light fixture; And can do further correction to other detection data of light decay rule and aging test according to power-off time, improved the accuracy of aging test data greatly.
Description of drawings
The structural drawing of the light fixture aging test alarm control circuit that Fig. 1 provides for one embodiment of the invention;
The exemplary circuit structural drawing of the light fixture aging test alarm control circuit that Fig. 2 provides for one embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention utilizes temperature detect switch (TDS) when high temperature, light fixture to be done power down process; Report to the police simultaneously and write down power-off time; Protect the safety of light fixture effectively; And can do further correction to other detection data of light decay rule and aging test according to power-off time, improved the accuracy of aging test data greatly.
Fig. 1 shows the structure of the light fixture aging test alarm control circuit that the embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the present invention.
This control circuit can be applied in the light fixture aging test warning frock of various structures.
The light fixture aging test alarm control circuit that provides as one embodiment of the invention; Be connected with light fixture through light fixture D.C. regulated power supply 21; This control circuit comprises transformer T1, rectification filtering unit 11 and voltage regulation unit 12, and transformer T1 input end is connected with the mains electricity input end, and transformer T1 output terminal is connected with the input end of said rectification filtering unit 11; The output terminal of rectification filtering unit 11 is connected with the input end of voltage regulation unit 12, and this control circuit also comprises:
Temperature detect switch (TDS) S1; The temperature control end of this temperature detect switch (TDS) S1 is affixed on the heat radiator of light fixture 23; The current input terminal of temperature detect switch (TDS) S1 is connected with the output terminal of voltage regulation unit 12; Be used for when the temperature of light fixture 23 is no more than preset temperature, remaining closed, when the temperature of light fixture 23 surpasses preset temperature, break off immediately;
Relay K 1; The moving contact of this relay K 1 is connected with the input end of light fixture D.C. regulated power supply 21, and the stationary contact of relay K 1 is connected with the mains electricity input end, and the coil of relay K 1 is connected between the current output terminal and ground end of temperature detect switch (TDS) S1; Be used for that moving contact separates with stationary contact when temperature detect switch (TDS) S1 breaks off; The control civil power is to light fixture 23 outages, and moving contact and stationary contact adhesive when temperature detect switch (TDS) S1 is closed are controlled civil power light fixture 23 is supplied power again;
In embodiments of the present invention, respectively light fixture 23 and fan 24 are supplied power, when work appears abending in fan 24; Temperature detect switch (TDS) S1 turn-offs because of temperature rises, and is quit work by relay K 1 control light fixture 23, and carries out timing through first switch element 13 with second switch unit 14 control counters 15 simultaneously; Descend up to getting rid of fan 24 fault temperature; Temperature detect switch (TDS) S1 is closed once more, and light fixture 23 works on, and counter 15 stops timing.
In embodiments of the present invention; Utilize temperature detect switch (TDS) when high temperature, light fixture to be done power down process; And the record power-off time, not because of external fault burns, reduced the probability of aging test risk with the protection light fixture; And can do further correction to other detection data of light decay rule and aging test according to power-off time, improved the accuracy of aging test data greatly.
Below in conjunction with specific embodiment realization of the present invention is elaborated.
Fig. 2 illustrates the exemplary circuit structure of the light fixture aging test alarm control circuit that the embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the present invention.
As one embodiment of the invention, this control circuit can be realized control to a plurality of light fixtures through a plurality of temperature detect switch (TDS)s, and the light source of this light fixture can be led light source.
In embodiments of the present invention; Temperature detect switch (TDS) S1 is to temperature detect switch (TDS) S5 series connection, is affixed on the heat radiator of LED1 to LED5 of series connection the parallel connection of first fan to the tendencies fan respectively; Be electrically connected with the city through fan D.C. regulated power supply 22, be used for LED1 to LED5 is carried out radiating treatment.
In embodiments of the present invention; The primary coil of transformer T1 is connected with live wire L with the zero line N of civil power respectively; The secondary coil of transformer T1 is connected with the input end of rectifier bridge B1; The output terminal of rectifier bridge B1 passes through filter capacitor C1 ground connection, and passes through the DC voltage of voltage regulation unit 12 output 12V, and this voltage regulation unit 12 can adopt 7812 stabilivolts to realize.
One end of resistance R 1 is the input end of second switch unit 14; The other end of resistance R 1 is that the control end of second switch unit 14 passes through resistance R 4 ground connection; And be connected with the grid of switching tube Q2 simultaneously; The drain electrode of switching tube Q2 is that the input end of second switch unit 14 is connected with an end of resistance R 1 simultaneously, and through capacitor C 2 ground connection, the source class of switching tube Q2 is the output terminal of second switch unit 14 to the grid of switching tube Q2 again.
As one embodiment of the invention, switching tube Q1 is a NPN type triode, and switching tube Q2 is a N type power field effect pipe.
As one embodiment of the invention, this control circuit can also comprise loudspeaker SP, and this loudspeaker SP is parallelly connected with timer 15, and the end of loudspeaker SP is connected with the output terminal of second switch unit 14, the other end ground connection of loudspeaker SP.
As one embodiment of the invention; This control circuit can also comprise alarm lamp 16; This alarm lamp 16 is parallelly connected with loudspeaker SP or timer 15, and an end of this alarm lamp 16 is connected with the output terminal of second switch unit 14, the other end ground connection of alarm lamp 16.
As one embodiment of the present invention, alarm lamp 16 can be bulb, also can be the LED light emitting diode.
In embodiments of the present invention, when the beginning aging test, earlier with transformer T1 energized; Transformer T1 converts civil power into required supply voltage V1, and carries out voltage stabilizing through rectification filtering unit 11 backs through voltage regulation unit 12, exports stable 12V DC voltage; At this moment, temperature detect switch (TDS) S1 is in closure state at normal temperatures to temperature detect switch (TDS) S5, and one road electric current is through the coil of relay K 1; Make the contact adhesive, relay K 1 conducting makes civil power convert the required DC voltage V2 of LED1 to LED5 into through light fixture D.C. regulated power supply 21, and LED1 to LED5 works; Connect fan power supply simultaneously and make first fan to the tendencies fan work, respectively LED1 to LED5 is lowered the temperature; Another road electric current is through 2 chargings of 1 pair of capacitor C of resistance R; Simultaneously after resistance R 2, resistance R 3 dividing potential drops, making the base stage of switching tube Q1 is high level; Switching tube Q1 conducting; First switch controlling signal of its collector output low level, switching tube Q2 turn-offs, and counter 15, loudspeaker SP and alarm lamp 16 are not worked.
When in test process, the arbitrary fan in first fan to the tendencies fan occurs unusual, can't untimelyly cause corresponding LED temperature to raise for corresponding LED lowers the temperature or lowers the temperature; When the temperature of this corresponding LED surpassed the setting value of temperature detect switch (TDS), corresponding temperature detect switch (TDS) turn-offed the power supply of block system relay K1; Relay K 1 contact is broken off, and civil power is stopped a plurality of LED power supplies, and is can Yin Wendu not too high and burn to guarantee LED; And it is low level that the temperature detect switch (TDS) disconnection makes the base stage of switching tube Q1 simultaneously, and switching tube Q1 ends, and electric current begins capacitor C 2 chargings; The grid voltage of switching tube Q2 rises, when the grid voltage of switching tube Q2 reaches its forward voltage, and switching tube Q2 conducting; Output current signal picks up counting counter 15 work, and loudspeaker SP sends alarm sound, alarm lamp 16 luminous promptings; Notify the staff record, the staff received and fan was carried out fault behind the various alarms and get rid of this moment, when the fan reparation well; After LED cooled off gradually, temperature detect switch (TDS) recovers conducting made LED1 to LED5 work proceed aging test, and this hour counter 15 stops timing; The working time that is counter 15 is the power-off time of LED; The staff can will deduct timer 15 record power-off times the test duration when the light fixture aging test finishes, can obtain the aging working time of LED, and further calculate light decay rule accurately and aging test other detect data.
As one embodiment of the invention, can also on loudspeaker SP and alarm lamp, connect two switch S 11 and S12 are used for after the staff receives the report for police service, cutting off switch S 11, S12, with the convenient alarm that when keeping in repair fan, stops.
In embodiments of the present invention, utilize temperature detect switch (TDS) when high temperature, LED to be done power down process, write down power-off time simultaneously; With prompting staff handling failure; The temperature that LED is not caused because of non-LED faults such as fan power supply damage, fan failure, rotation speed of the fan are slack-off rises and burns device, has effectively protected LED, has reduced loss; Reduced the probability of aging test risk; And according to power-off time other detection data of light decay rule and aging test are done further correction, improved the accuracy of aging test data greatly, this control circuit is simple in structure, cost is low.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. light fixture aging test alarm control circuit; Be connected with light fixture through the light fixture D.C. regulated power supply, said control circuit comprises transformer T1, rectification filtering unit and voltage regulation unit, and the input end of said transformer T1 is connected with the mains electricity input end; The output terminal of said transformer T1 is connected with the input end of said rectification filtering unit; The output terminal of said rectification filtering unit is connected with the input end of said voltage regulation unit, it is characterized in that, said control circuit also comprises:
Temperature detect switch (TDS) S1; The temperature control end of said temperature detect switch (TDS) S1 is affixed on the heat radiator of said light fixture; The current input terminal of said temperature detect switch (TDS) S1 is connected with the output terminal of said voltage regulation unit; Be used for when the temperature of said light fixture is no more than preset temperature, remaining closed, when the temperature of said light fixture surpasses preset temperature, break off immediately;
Relay K 1; The moving contact of said relay K 1 is connected with the input end of said light fixture D.C. regulated power supply; The stationary contact of said relay K 1 is connected with said mains electricity input end; The coil of said relay K 1 is connected between the current output terminal and ground end of said temperature detect switch (TDS) S1, is used for that moving contact separates with stationary contact when said temperature detect switch (TDS) S1 disconnection, controls said civil power said light fixture is cut off the power supply; Moving contact and stationary contact adhesive are controlled said civil power said light fixture are supplied power again when said temperature detect switch (TDS) S1 is closed;
First switch element, the input end of said first switch element is connected with the current output terminal of said temperature detect switch (TDS) S1, is used for when said light fixture cuts off the power supply, keep turn-offing, when said light fixture is supplied power again, the conducting discharge;
The second switch unit; The control end of said second switch list is connected with the output terminal of said first switch element, and the input end of said second switch unit is connected with the output terminal of said voltage regulation unit, is used for having no progeny when said first switch element closes; The conducting of charging; The output timing signal after said first switch element conducting discharge, stops to export timing signal;
Counter, the input end of said counter is connected with the output terminal of said second switch list, and the output head grounding of said counter is used for during receiving said timing signal the power-off time of the said light fixture of record.
2. control circuit as claimed in claim 1 is characterized in that said control circuit comprises a plurality of temperature detect switch (TDS)s, is affixed on respectively on the said light fixture heat radiator of a plurality of series connection.
3. control circuit as claimed in claim 1 is characterized in that, the light source of said light fixture is a led light source.
4. control circuit as claimed in claim 1 is characterized in that, said first switch element comprises:
Switching tube Q1, resistance R 2 and resistance R 3;
One end of said resistance R 3 is the input end of said first switch element; The other end of said resistance R 3 is through said resistance R 2 ground connection; And be connected with the base stage of said switching tube Q1 simultaneously; The grounded emitter of said switching tube Q1, the output terminal of very said first switch element of the current collection of said switching tube Q1.
5. control circuit as claimed in claim 4 is characterized in that, said switching tube Q1 is a NPN type triode.
6. control circuit as claimed in claim 1 is characterized in that, said second switch unit comprises:
Switching tube Q2, resistance R 1, resistance R 4 and capacitor C 2;
One end of said resistance R 1 is the input end of said second switch unit; The other end of said resistance R 1 is that the control end of said second switch unit is through said resistance R 4 ground connection; The other end of said resistance R 1 is connected with the grid of said switching tube Q2 simultaneously; The drain electrode of said switching tube Q2 is connected with an end of said resistance R 1, and the grid of said switching tube Q2 is through said capacitor C 2 ground connection, and the source class of said switching tube Q2 is the output terminal of said second switch unit.
7. control circuit as claimed in claim 6 is characterized in that, said switching tube Q2 is a N type power field effect pipe.
8. control circuit as claimed in claim 1 is characterized in that, said control circuit also comprises:
Loudspeaker, said loudspeaker is parallelly connected with said timer, and an end of said loudspeaker is connected with the output terminal of said second switch unit, the other end ground connection of said loudspeaker.
9. control circuit as claimed in claim 1 is characterized in that, said control circuit also comprises:
Alarm lamp, said alarm lamp is parallelly connected with said loudspeaker or said timer, and an end of said alarm lamp is connected with the output terminal of said second switch unit, the other end ground connection of said alarm lamp.
10. a light fixture aging test warning frock is characterized in that, the control circuit of said light fixture aging test warning frock is like each described control circuit of claim 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110170998.6A CN102841321B (en) | 2011-06-23 | 2011-06-23 | A kind of light fixture aging test alarm control circuit and warning frock thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110170998.6A CN102841321B (en) | 2011-06-23 | 2011-06-23 | A kind of light fixture aging test alarm control circuit and warning frock thereof |
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| CN102841321A true CN102841321A (en) | 2012-12-26 |
| CN102841321B CN102841321B (en) | 2015-08-26 |
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| CN201110170998.6A Expired - Fee Related CN102841321B (en) | 2011-06-23 | 2011-06-23 | A kind of light fixture aging test alarm control circuit and warning frock thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101806871A (en) * | 2010-04-02 | 2010-08-18 | 北京巨数数字技术开发有限公司 | On-line detection method |
| CN103698717A (en) * | 2013-12-30 | 2014-04-02 | 佛山冠今光电科技有限公司 | Aging testing device for detecting driving performance stability of LED (light-emitting diode) power supply |
| CN103760500A (en) * | 2013-12-31 | 2014-04-30 | 河南云华灿光电科技有限公司 | Lamp test circuit and lamp tester comprising same |
| CN104076298A (en) * | 2013-03-29 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Emergency lamp repeated conversion performance test circuit and emergency lamp repeated conversion performance tester |
| CN104184109A (en) * | 2013-05-23 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Overvoltage protection device for lamp aging test |
| CN104215915A (en) * | 2013-05-31 | 2014-12-17 | 海洋王（东莞）照明科技有限公司 | Lamp aging testing device |
| CN104635179A (en) * | 2014-12-30 | 2015-05-20 | 昆山恩都照明有限公司 | Lamp head switch aging test device |
| CN110191542A (en) * | 2019-06-22 | 2019-08-30 | 安徽华新光电饰业有限公司 | A kind of temperature protector and its mounting process of LED lamp |
| CN110708849A (en) * | 2019-09-30 | 2020-01-17 | 苏州精濑光电有限公司 | Illumination control system and lamp box |
| CN110853577A (en) * | 2019-11-27 | 2020-02-28 | 京东方科技集团股份有限公司 | Display panel and brightness compensation method |
| CN113985311A (en) * | 2021-10-22 | 2022-01-28 | 深圳市中孚能电气设备有限公司 | Miner lamp aging test device, terminal and system |
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Cited By (17)
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| CN101806871B (en) * | 2010-04-02 | 2015-12-16 | 深圳市中庆微科技开发有限公司 | A kind of online test method |
| CN101806871A (en) * | 2010-04-02 | 2010-08-18 | 北京巨数数字技术开发有限公司 | On-line detection method |
| CN104076298B (en) * | 2013-03-29 | 2016-12-28 | 海洋王（东莞）照明科技有限公司 | Emergency light repeats conversion performance test circuit and tester |
| CN104076298A (en) * | 2013-03-29 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Emergency lamp repeated conversion performance test circuit and emergency lamp repeated conversion performance tester |
| CN104184109B (en) * | 2013-05-23 | 2017-11-24 | 海洋王（东莞）照明科技有限公司 | A kind of over-pressure safety device of light fixture burn-in test |
| CN104184109A (en) * | 2013-05-23 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Overvoltage protection device for lamp aging test |
| CN104215915A (en) * | 2013-05-31 | 2014-12-17 | 海洋王（东莞）照明科技有限公司 | Lamp aging testing device |
| CN103698717A (en) * | 2013-12-30 | 2014-04-02 | 佛山冠今光电科技有限公司 | Aging testing device for detecting driving performance stability of LED (light-emitting diode) power supply |
| CN103698717B (en) * | 2013-12-30 | 2017-01-25 | 佛山冠今光电科技有限公司 | Aging testing device for detecting driving performance stability of LED (light-emitting diode) power supply |
| CN103760500B (en) * | 2013-12-31 | 2016-02-24 | 河南中云创光电科技股份有限公司 | A kind of light fixture test circuit and there is the light fixture tester of this circuit |
| CN103760500A (en) * | 2013-12-31 | 2014-04-30 | 河南云华灿光电科技有限公司 | Lamp test circuit and lamp tester comprising same |
| CN104635179A (en) * | 2014-12-30 | 2015-05-20 | 昆山恩都照明有限公司 | Lamp head switch aging test device |
| CN110191542A (en) * | 2019-06-22 | 2019-08-30 | 安徽华新光电饰业有限公司 | A kind of temperature protector and its mounting process of LED lamp |
| CN110191542B (en) * | 2019-06-22 | 2021-07-20 | 安徽华新光电饰业有限公司 | Temperature protector of LED lamp and mounting process thereof |
| CN110708849A (en) * | 2019-09-30 | 2020-01-17 | 苏州精濑光电有限公司 | Illumination control system and lamp box |
| CN110853577A (en) * | 2019-11-27 | 2020-02-28 | 京东方科技集团股份有限公司 | Display panel and brightness compensation method |
| CN113985311A (en) * | 2021-10-22 | 2022-01-28 | 深圳市中孚能电气设备有限公司 | Miner lamp aging test device, terminal and system |
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| CN102841321B (en) | 2015-08-26 |
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Granted publication date: 20150826 Termination date: 20200623 |