CN102721937B - The aging test frock of LED - Google Patents
The aging test frock of LED Download PDFInfo
- Publication number
- CN102721937B CN102721937B CN201110079063.7A CN201110079063A CN102721937B CN 102721937 B CN102721937 B CN 102721937B CN 201110079063 A CN201110079063 A CN 201110079063A CN 102721937 B CN102721937 B CN 102721937B
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- CN
- China
- Prior art keywords
- relay
- led
- aging test
- power supply
- fan
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Abstract
The invention discloses the aging test frock of a kind of LED, it includes LED, fan, the first power supply and second source, the first relay K
1with the second relay K
2, described first relay K
1on the positive pole that the two ends of hot-wire coil are connected in described first power supply respectively in parallel and negative pole, described first relay K
1one end of normal battle and described second relay K
2one end electrical connection of hot-wire coil, described first relay K
1normal battle the other end composition described second relay K
2the other end access of hot-wire coil, and the second relay K
2the two ends of hot-wire coil are with on parallel way access civil power; Described second relay K
2one end of normal battle be connected with the positive pole of described second source and negative electricity, described second relay K
2the other end of normal battle be electrically connected with city.The present invention can avoid when the power fail of powering to fan, and the power supply of powering to LED works on, and causes LED to be burned, and affects the result of the aging test of LED.
Description
Technical field
The present invention relates to the test tool of a kind of LED, refer in particular to the aging test frock of a kind of LED.
Background technology
In the aging test of great power LED, consider the heat dispersal situations of LED, usual employing fan dispels the heat, so just have the heat radiation power supply of fan and the power supply of LED is provided, because the voltage of LED work is different from fan work voltage, a power supply can not be used simultaneously, just need two power supplys respectively to LED and Power supply, at this moment just there will be potential safety hazard; If the power supply of powering to fan is bad, fan then quits work; And the power work of powering to LED is normal, LED can be caused like this to burn out because heating up very fast, like this, will occur due to the fault of non-LED itself and cause LED to be burned, so, LED light must not be gone out and to decline rule and aging other problems itself, the loss that cannot retrieve will be caused.
Summary of the invention
The invention provides the aging test frock of a kind of LED, it can be avoided when the power fail of powering to fan, and the power supply of powering to LED works on, and causes LED to be burned, and affects the result of the aging test of LED.
The present invention is achieved in that
The aging test frock of a kind of LED, it includes LED, fan, the first power supply and second source, described fan is connected in positive pole and the negative pole of described first power supply in parallel, described LED is connected in positive pole and the negative pole of described second source in parallel, and this aging test frock also includes: the first relay K
1with the second relay K
2, described first relay K
1on the positive pole that the two ends of hot-wire coil are connected in described first power supply respectively in parallel and negative pole, described first relay K
1one end of normal battle and described second relay K
2one end electrical connection of hot-wire coil, described first relay K
1normal battle the other end composition described second relay K
2the other end access of hot-wire coil, and described second relay K
2the two ends of hot-wire coil are with on parallel way access civil power; Described second relay K
2one end of normal battle be connected with the positive pole of described second source and negative electricity, described second relay K
2the other end of normal battle and city be electrically connected in series.
Wherein, described first relay K
1for direct current 12V normally opened relay, it is hilted broadsword normally opened relay or double-pole normally opened relay.
Wherein, described fan is 12V DC fan.
Wherein, described second relay K
2for alternating current 220V normally opened relay, it is hilted broadsword normally opened relay or double-pole normally opened relay.
Wherein, described first power supply and second source are D.C. regulated power supply.
The present invention compared with prior art, has following beneficial effect:
The aging test frock of LED of the present invention, it when the first power supply no-output of powering to fan, can cut off the second source of powering to LED immediately, avoid LED to burn because of non-self reason, reduce the risk of the aging test of LED, reduce the loss, and structure is simple, and cost is low.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the aging test frock embodiment one of LED of the present invention;
Fig. 2 is the circuit diagram of the aging test frock embodiment two of LED of the present invention;
Fig. 3 is the circuit diagram of the aging test frock embodiment three of LED of the present invention;
Fig. 4 is the circuit diagram of the aging test frock embodiment four of LED of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail:
The aging test frock of LED of the present invention, it includes fan, LED, the first power supply and second source, the first relay K
1with the second relay K
2, described fan M is connected in positive pole and the negative pole of described first power supply in parallel, and described LED is connected in positive pole and the negative pole of described second source in parallel; LED is device to be aging, and fan M is for giving LED heat transmission; Described first relay K
1on the positive pole that the two ends of hot-wire coil are connected in described first power supply respectively in parallel and negative pole, described first relay K
1one end of normal battle and described second relay K
2one end electrical connection of hot-wire coil, described first relay K
1normal battle the other end composition described second relay K
2the other end access of hot-wire coil, and described second relay K
2the two ends of hot-wire coil are with on parallel way access civil power; Described second relay K
2one end of normal battle be connected with the positive pole of described second source and negative electricity, described second relay K
2the other end of normal battle be electrically connected with city.
In the present invention, described first power supply is 12V D.C. regulated power supply, also can select different voltage according to the quantity of the rated voltage of fan or fan M, e.g., and 5V, 24V or 36V etc.; Described second source can be 5V, 12V, 24V or 36V D.C. regulated power supply, and selects according to the rated voltage of single LEDs 2 and LED2 quantity; Described fan is 12V DC fan.
In the present invention, described first relay K
1for direct current 12V normally opened relay, described first relay K
1for hilted broadsword normally opened relay or double-pole normally opened relay, described second relay K
2for alternating current 220V normally opened relay, described second relay K
2for hilted broadsword normally opened relay or double-pole normally opened relay.
Principle of work of the present invention:
When LED is aging, only has and first open that (it is invalid for now opening LED power, because not also being energized by K
2control) K
1with the first power supply of fan M place circuit, the first electric power output voltage, fan M starts working, and namely dispels the heat to LED; Now K
1coil electricity, K
1normal adhesive battle of coil, K immediately
2coil electricity, K
2normal battle closes, and the power supply energising of LED, open the second source of LED place circuit, output voltage, power to LED, LED starts working, and namely carries out aging.
In test process, if the first power supply no-output of fan M place circuit, now fan M quits work, K
1coil blackout, K
1normal battle disconnects, K
2coil is power-off also, K
2normal battle disconnects, second source power-off, and LED extinguishes; Like this, fan power-off, simultaneously LED also cannot work, and by two relay protections, LED is because of without heat radiation, and makes its temperature rise and burn out LED.
It is below several specific embodiment of the present invention
Embodiment 1
As shown in Figure 1, the aging test frock of LED, it includes 12V DC fan M, LED2, the first power supply 3 and second source 4, first relay K
1with the second relay K
2; Wherein, the first relay K
1for direct current 12V hilted broadsword normally opened relay, the second relay K
2for alternating current 220V double-pole normally opened relay, the first power supply 3, second source 4 are D.C. regulated power supply; Fan M is connected in positive pole and the negative pole of the first power supply 3 in parallel, and LED2 is connected in positive pole and the negative pole of second source 4 in parallel; First relay K
1on the positive pole that the two ends of hot-wire coil are connected in the first power supply 3 respectively in parallel and negative pole, the first relay K
1one end of normal battle and the second relay K
2one end electrical connection of hot-wire coil, this first relay K
1the other end of normal battle constitute the second relay K
2the other end of hot-wire coil, and the second relay K
2the two ends of hot-wire coil are with on parallel way access civil power; Described second relay K
2one end of normal battle be connected with the positive pole of described second source and negative electricity, described second relay K
2the other end of normal battle be connected in parallel on civil power.
Embodiment 2
As shown in Figure 2, the aging test frock of the LED in this embodiment, is with the difference of embodiment 1: the first relay K
1for direct current 12V double-pole normally opened relay; This first relay K
1on the positive pole that the two ends of hot-wire coil are connected in the first power supply 3 respectively in parallel and negative pole, the first relay K
1one end of normal battle and the second relay K
2one end of hot-wire coil is connected in parallel, this first relay K
1normal battle the other end with access on civil power with parallel way.
Embodiment 3
As shown in Figure 3, the aging test frock of the LED in this embodiment, is with the difference of embodiment 1: the second relay K
2for alternating current 220V hilted broadsword normally opened relay, this second relay K
2one end of normal battle be electrically connected with an electrode of second source, the other end is electrically connected with the zero line (N) of civil power, and another electrode of second source is electrically connected with the live wire (L) of civil power.
Embodiment 4
As shown in Figure 4, the aging test frock of the LED in this embodiment, is with the difference of embodiment 3: the first relay K
1for direct current 12V double-pole normally opened relay; This first relay K
1on the positive pole that the two ends of hot-wire coil are connected in the first power supply 3 respectively in parallel and negative pole, the first relay K
1one end of normal battle and the second relay K
2one end of hot-wire coil is connected in parallel, this first relay K
1normal battle the other end with access on civil power with parallel way.
These are only specific embodiments of the invention, do not limit protection scope of the present invention with this; Not violating any replacement and improvement that the basis of the present invention's design is done, all belong to protection scope of the present invention.
Claims (8)
1. the aging test frock of a LED, it includes LED, fan, the first power supply and second source, described fan is connected in positive pole and the negative pole of described first power supply in parallel, described LED is connected in positive pole and the negative pole of described second source in parallel, it is characterized in that, this aging test frock also includes: the first relay K
1with the second relay K
2, described first relay K
1on the positive pole that the two ends of hot-wire coil are connected in described first power supply respectively in parallel and negative pole, described first relay K
1one end of normal battle and described second relay K
2one end electrical connection of hot-wire coil, described first relay K
1normal battle the other end composition described second relay K
2the other end access of hot-wire coil, and described second relay K
2the two ends of hot-wire coil are with on parallel way access civil power; Described second relay K
2one end of normal battle be connected with the positive pole of described second source and negative electricity, described second relay K
2the other end of normal battle and city be electrically connected in series; Described first power supply and second source are D.C. regulated power supply; Described fan is that described LED dispels the heat.
2. the aging test frock of LED as claimed in claim 1, is characterized in that, described first relay K
1for direct current 12V normally opened relay.
3. the aging test frock of LED as claimed in claim 2, is characterized in that, described first relay K
1for hilted broadsword normally opened relay.
4. the aging test frock of LED as claimed in claim 2, is characterized in that, described first relay K
1for double-pole normally opened relay.
5. the aging test frock of LED as claimed in claim 1, it is characterized in that, described fan is 12V DC fan.
6. the aging test frock of LED as claimed in claim 1, is characterized in that, described second relay K
2for alternating current 220V normally opened relay.
7. the aging test frock of LED as claimed in claim 6, is characterized in that, described second relay K
2for hilted broadsword normally opened relay.
8. the aging test frock of LED as claimed in claim 6, is characterized in that, described second relay K
2for double-pole normally opened relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110079063.7A CN102721937B (en) | 2011-03-30 | 2011-03-30 | The aging test frock of LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110079063.7A CN102721937B (en) | 2011-03-30 | 2011-03-30 | The aging test frock of LED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102721937A CN102721937A (en) | 2012-10-10 |
| CN102721937B true CN102721937B (en) | 2016-01-13 |
Family
ID=46947753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110079063.7A Expired - Fee Related CN102721937B (en) | 2011-03-30 | 2011-03-30 | The aging test frock of LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102721937B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049222B (en) * | 2013-03-15 | 2017-02-01 | 深圳市海洋王照明工程有限公司 | Circuit for testing multiple LEDs |
| 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 |
| CN104427677B (en) * | 2013-08-20 | 2018-09-11 | 海洋王（东莞）照明科技有限公司 | Lamp low voltage safety switch circuit |
| CN113504421B (en) * | 2021-06-23 | 2023-10-13 | 中国电子科技集团公司第三十八研究所 | Full-automatic aging method for electronic product |
Citations (7)
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|---|---|---|---|---|
| TWI224711B (en) * | 2003-05-29 | 2004-12-01 | Microtek Int Inc | Lamp protection device and method |
| CN1567674A (en) * | 2003-06-09 | 2005-01-19 | 全友电脑股份有限公司 | Bulb protecting device and method |
| CN1746766A (en) * | 2004-09-09 | 2006-03-15 | 宏碁股份有限公司 | Radiating system and method for projector |
| CN2811633Y (en) * | 2004-06-17 | 2006-08-30 | Tcl王牌电子(深圳)有限公司 | Automatic on-off device for fan of back-projection TV set when power failure |
| US20060290206A1 (en) * | 2005-06-27 | 2006-12-28 | Kunihiko Tabei | Fan power supply apparatus and image projection apparatus |
| CN201129641Y (en) * | 2007-12-07 | 2008-10-08 | 西安电子科大赛福电子技术有限责任公司 | High-power green environment protection lighting lamp composed of LED |
| CN101881404A (en) * | 2010-07-01 | 2010-11-10 | 王干 | Intelligently controlled forced convection radiation LED streetlamp system |
-
2011
- 2011-03-30 CN CN201110079063.7A patent/CN102721937B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI224711B (en) * | 2003-05-29 | 2004-12-01 | Microtek Int Inc | Lamp protection device and method |
| CN1567674A (en) * | 2003-06-09 | 2005-01-19 | 全友电脑股份有限公司 | Bulb protecting device and method |
| CN2811633Y (en) * | 2004-06-17 | 2006-08-30 | Tcl王牌电子(深圳)有限公司 | Automatic on-off device for fan of back-projection TV set when power failure |
| CN1746766A (en) * | 2004-09-09 | 2006-03-15 | 宏碁股份有限公司 | Radiating system and method for projector |
| US20060290206A1 (en) * | 2005-06-27 | 2006-12-28 | Kunihiko Tabei | Fan power supply apparatus and image projection apparatus |
| CN201129641Y (en) * | 2007-12-07 | 2008-10-08 | 西安电子科大赛福电子技术有限责任公司 | High-power green environment protection lighting lamp composed of LED |
| CN101881404A (en) * | 2010-07-01 | 2010-11-10 | 王干 | Intelligently controlled forced convection radiation LED streetlamp system |
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| Publication number | Publication date |
|---|---|
| CN102721937A (en) | 2012-10-10 |
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