CN202082864U - Strong shock resisting LED (Light-Emitting Diode) flood lamp - Google Patents
Strong shock resisting LED (Light-Emitting Diode) flood lamp Download PDFInfo
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- CN202082864U CN202082864U CN2011201161676U CN201120116167U CN202082864U CN 202082864 U CN202082864 U CN 202082864U CN 2011201161676 U CN2011201161676 U CN 2011201161676U CN 201120116167 U CN201120116167 U CN 201120116167U CN 202082864 U CN202082864 U CN 202082864U
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Abstract
The utility model relates to a strong shock resisting LED (Light-Emitting Diode) flood lamp. The LED flood lamp is an LED lighting lamp formed by connecting a temperature compensator and a plurality of lighting LED chips in series and connected with an output end of a direct-current voltage-stabilized power supply, wherein the temperature compensator can be composed of one or 2-3 temperature compensation thermistors provided with a positive temperature coefficient and mutually connected in parallel. As a mode of remotely connecting the LED lighting lamp and the direct-current voltage-stabilized power supply for power supply is adopted, an AC/DC (Alternating Current/Direct Current) converter is not required to be mounted in the lamp and an equipment failure rate is reduced; the temperature compensator is arranged in the lamp so that the reduction of a positive voltage of an LED chip can be cancelled, thereby ensuring that the LED current is stable and the shock-resisting property is greatly increased; the strong shock resisting LED flood lamp has the advantages of novel structure, low cost, strong shock resisting property, good electricity-saving effect and the like; moreover, products can meet shock-resisting operating requirements of aeronautics and astronautics engine test beds and various high-speed vehicles on lighting lamps.
Description
Technical field
The utility model belongs to the technology of semiconductor illumination application field, relate to a kind of anti-macroseism LED floodlight with high anti-seismic performance and good illumination effect, product can satisfy the antidetonation instructions for use to lighting of Aero-Space engine testsand and various hot-short.
Background technology
During the operation of Aero-Space engine test or hot-short owing to be attended by extremely strong strong vibrations, so that testing crew can't be observed the test run situation near aero-engine or hot-short equipment, all adopt the mode of spot sampling, remote observation to obtain experimental result usually.For the commissioning process of accurate careful observation aero-engine or hot-short equipment, must really accurately sample, for this illumination to test bay has high requirement.In case indivedual lightings break down, and just can't continue test run, thereby cause great economic loss.
Equipment such as aero-engine or hot-short test bay generally adopt the high-power metallic halide lamp both at home and abroad at present, and under strong motion, the glass shell of this light fixture is very easily broken, and the edison socket of light fixture is also very easily loosening, thus the influence illumination.Simultaneously, the power consumption of this light fixture is very big, and test bay generally adopts the 450W Metal halogen lamp at present, and a test bay approximately needs 40, and general power is about 18KW, and each test run all needs to consume bigger electric weight.In addition, this light fixture all is installed on the tens meters high roof in test run workshop usually, and maintain and replace is difficulty very.In order to overcome these difficulties, domestic have many enterprises not stint to spend huge sums from external import light fixture, but these light fixtures have just improved anti-seismic performance from structure, but can not improve the anti-seismic performance of light fixture in itself.
In recent years, semi-conductor lighting lamp (LED) obtains breakthrough, and luminous efficiency has reached 150Lm/w, considerably beyond Metal halogen lamp, but also improving constantly, simultaneously semi-conductor lighting lamp adopts solid light source, thereby has extremely strong anti-seismic performance, but since the LED lamp by direct current supply, usually the lamp domestic demand is installed the AC/DC converter, after this electronic circuit bears sharp pounding, also can break down, thus the influence illumination.
The utility model content
The purpose of this utility model is the problem that prior art exists is solved, so provide that a kind of novel structure, cost are low, antidetonation serviceability and the good anti-macroseism LED floodlight of power savings.
Technical solution of the present utility model is: the anti-macroseism LED floodlight that is provided be one connect with the D.C. regulated power supply output by a temperature compensator and many LED illuminating lamps that emitting led chip is composed in series.In the specific design scheme, said temperature compensator can be made of the temperature-compensating thermistor of a positive temperature coefficient, also can be made of the temperature-compensating thermistor of 2～3 positive temperature coefficients that are connected in parallel to each other.
Compared with prior art, the utility model adopts LED illuminating lamp and the mode that connects at the D.C. regulated power supply away from aero-engine or the setting of hot-short test bay focus zone, it is the mode of external D.C. regulated power supply, remote power feeding, make to need not in the lamp AC/DC converter is installed again, lowered equipment failure rate; Because the forward drop of led chip has negative temperature coefficient, after environment temperature raises, the forward voltage drop of led chip reduces, the electric current of LED lamp will be increased, because design current has reached the saturation current of chip, forward current increases, can not increase lamplight brightness, but will have a strong impact on the life-span of LED, therefore, the temperature compensator (temperature-compensating thermistor) of in light fixture, packing into, when temperature raise, the resistance of temperature compensator increased, and pressure drop increases, can offset the reduction of led chip forward voltage fully, thereby guarantee that the LED current stabilization is constant; Owing to have only temperature compensator and several elements of led chip in the lamp, its anti-seismic performance is improved greatly in addition.In addition, in other configuration aspects, the LED lampshade adopts safety glass, adds the certain thickness rubber washer that is used to reduce impact endurance test shock between cloche and shell, and whole lamp reduces screw as far as possible and connects, to guarantee the whole anti-macroseism performance of LED light fixture.Experiment showed, and adopt the LED Flood lamps and lanterns of 70W can reach the illuminating effect of 250W Metal halogen lamp, so can save the electric weight more than 70% in the commissioning process, produce tangible economic benefit, greatly satisfy user's instructions for use.
Description of drawings
Accompanying drawing is the theory structure schematic diagram of an embodiment of the utility model.
The specific embodiment
Below with reference to drawings and Examples content of the present utility model is described further, but actual fabrication structure of the present utility model is not limited in following embodiment.
Referring to accompanying drawing, the circuit part of anti-macroseism LED floodlight described in the utility model is composed in series by a temperature compensator 1 and many emitting led chips (being illustrated as 5 chips).Concrete enforcement in the structure, temperature compensator 1 can be made of the temperature-compensating thermistor of a positive temperature coefficient, also can be made of the temperature-compensating thermistor of 2～3 positive temperature coefficients that are connected in parallel to each other.After in led circuit, sealing in the thermistor of positive temperature coefficient, when temperature raises, the resistance of this resistance increases, pressure drop increases, design correct words, just can offset the reduction of led chip forward voltage fully, thereby guarantee that the LED current stabilization is constant, satisfy the antidetonation instructions for use of Aero-Space engine testsand and various hot-short lighting.
Claims (3)
1. anti-macroseism LED floodlight, it is characterized in that this anti-macroseism LED floodlight be one connect with the D.C. regulated power supply output by a temperature compensator (1) and many LED illuminating lamps that emitting led chip is composed in series.
2. anti-macroseism LED floodlight according to claim 1 is characterized in that said temperature compensator (1) is made of the temperature-compensating thermistor of a positive temperature coefficient.
3. anti-macroseism LED floodlight according to claim 1 is characterized in that said temperature compensator (1) is made of the temperature-compensating thermistor of 2～3 positive temperature coefficients that are connected in parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201161676U CN202082864U (en) | 2011-04-19 | 2011-04-19 | Strong shock resisting LED (Light-Emitting Diode) flood lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201161676U CN202082864U (en) | 2011-04-19 | 2011-04-19 | Strong shock resisting LED (Light-Emitting Diode) flood lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082864U true CN202082864U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201161676U Expired - Lifetime CN202082864U (en) | 2011-04-19 | 2011-04-19 | Strong shock resisting LED (Light-Emitting Diode) flood lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082864U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376816A (en) * | 2014-11-21 | 2015-02-25 | 京东方科技集团股份有限公司 | LED backlight drive circuit, LED backlight device and display device |
| CN104902656A (en) * | 2015-07-01 | 2015-09-09 | 上海顿格电子贸易有限公司 | Driving circuit of LED (light-emitting diode) lamp as well as lighting equipment |
-
2011
- 2011-04-19 CN CN2011201161676U patent/CN202082864U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376816A (en) * | 2014-11-21 | 2015-02-25 | 京东方科技集团股份有限公司 | LED backlight drive circuit, LED backlight device and display device |
| CN104902656A (en) * | 2015-07-01 | 2015-09-09 | 上海顿格电子贸易有限公司 | Driving circuit of LED (light-emitting diode) lamp as well as lighting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180711 Address after: 518117 No. 6 Lane three, Fu Xin Road, Tsuen Tau Village, Pingdi street, Longgang District, Shenzhen, Guangdong Patentee after: Guangdong Kexin Electronics Co., Ltd. Address before: 515152 Chen Dian Industrial Zone, Chaonan District, Shantou, Guangdong Patentee before: Guangdong Kexin Industrial Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |
|
| CX01 | Expiry of patent term |