CN203827576U - LED street lamp lighted with gradient in luminance - Google Patents
LED street lamp lighted with gradient in luminance Download PDFInfo
- Publication number
- CN203827576U CN203827576U CN201420203212.5U CN201420203212U CN203827576U CN 203827576 U CN203827576 U CN 203827576U CN 201420203212 U CN201420203212 U CN 201420203212U CN 203827576 U CN203827576 U CN 203827576U
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- street lamp
- led
- led street
- delay circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses an LED street lamp lighted with a gradient in luminance. The LED street lamp comprises a plurality of LEDs and a heat dissipation device. The LED street lamp further comprises a control switch assembly for controlling the LEDs or LED modules in the LED street lamp to be lighted in sequence or to be all lighted with a gradient in luminance. For example, the control switch assembly may be a plurality of dual metal switches which are arranged on the heat dissipation device and have different temperature expansion coefficients, and the input ends of the dual metal switches are connected with a power supply, while the output ends are connected with the LEDs or LED modules. The LED street lamp provided by the utility model has the advantages that the structure is simple and practical, and the impact current generated upon the start of the LED street lamp is significantly reduced, so that the driving power supply is effectively protected, the service life of the driving power supply is effectively prolonged, and power faults are reduced.
Description
Technical field
The utility model relates to a kind of light fixture, relates in particular to the turn on light LED street lamp of defencive function of a kind of band.
Background technology
Street lamp is the important component part of city illumination, traditional street lamp often adopts high-pressure sodium lamp, the high-pressure sodium lamp shortcoming that light efficiency is low has on the whole caused the huge waste of the energy, therefore, development of new is efficient, energy-conservation, the life-span is long, color rendering index is high, the street lamp of environmental protection is of great significance the energy-conservation tool of city illumination.Under this background, LED street lamp is born, and it usings light-emitting diode as light source, and because it is a kind of solid-state cold light source, the feature such as have environment friendly and pollution-free, little power consumption, light efficiency is high, the life-span is long, maintenance cost is low, at present, just little by little replaces traditional street lamp.
What LED street lamp was different from conventional high-pressure sodium lamp street lamp is, the light source of high-power LED street lamp is comprised of a plurality of LED, the efficient white light-emitting diodes that adopt low-voltage DC supply, is synthesized by GaN based power type blue-ray LED and yellow fluorescent powder, there is the distinct advantages such as efficient, safety, energy-saving and environmental protection, life-span length, fast response time, color rendering index height, can be widely used in city illumination.Outer cover can be made of PC pipe, high temperature resistant 135 degree that reach. low temperature resistant reaching-45 degree.
LED street lamp is mainly used in outdoor environment, stand all the year round wind and weather, the adverse circumstances that Thunder rumbled and lightning flashed, 50 ℃ of the Gao Shikeda of outside air temperature, and also likely reach-40 ℃ when minimum.LED light source belongs to semiconductor light sources, the characteristics of luminescence of itself determines that its failure rate is quite low, the failure rate of coupling part is also quite low, so the quality of LED driving power quality has directly determined the life-span of whole street lamp, is also most crucial part in the middle of LED street lamp industry.Once and street lamp is loaded onto, maintenance is non-product difficulty all, needs a large amount of manpower and materials, Ge great street lamp producer grieves to this and can't bear.Therefore, the driving power of protection LED street lamp, is to reduce the effective means of safeguarding LED street lamp number of times.And during at present LED street lamp work, directly start, to driving power, cause very large moment impact electric current like this, easily damage electronic device, increased the probability breaking down of power supply.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that existing LED street lamp exists, and the little LED street lamp of impulse current when a kind of startup is provided.
The appropriate technical solution of taking is as follows: a kind of gradually bright LED street lamp of turning on light, and it mainly comprises some LEDs and radiator; It is characterized in that: LED street lamp also comprises controls the LED in LED street lamp or LED module is lighted successively or all gradually bright control switch assemblies; Aforementioned control switch assembly is the different bimetal release of several temperature expansion coefficients being arranged on radiator, and bimetal release input is connected with power supply, and output is connected with LED or LED module.
After road lamp switch closes a floodgate, first LED or LED module are lit, generate heat, and heat is transmitted on radiator radiator is increased, and after temperature acquires a certain degree, the bimetal release of lower temperature first closes, and second LED or LED module are connected and be lit; Radiator temperature rise continue to increase, and second bimetal release also and then closed, and the 3rd LED or LED module are connected and lighted; Repeat above-mentioned relay process until whole LED or LED module are all lit; can avoid so all LED or LED modules to light simultaneously; avoided driving power to be subject to the impact of larger starting current; effectively protected driving power; in the useful life that is conducive to extend driving power, reduced power failure.
Further, aforementioned bimetal release is arranged on the side of radiator.Be arranged on side less on the cross-ventilated impact of spreader surface, avoid reducing the performance of radiator.
Or aforementioned control switch assembly is an electronic sequence switch, electronic sequence switch comprises some grades of delay circuits and electronic switching device; The input input of initial one-level delay circuit is connected with power supply, and the input of next stage delay circuit is connected on the electronic switch output of upper level, and every grade of electronic switch output is connected with LED or LED module.After road lamp switch closes a floodgate; after first LED or the of short duration time delay of LED module, be lit; start the delay circuit of the second level simultaneously; after delay time arrives; second LED or LED module are connected and are lit; start the delay circuit of the third level simultaneously; so be extrapolated to and light step by step whole LED or LED module; can avoid so all LED or LED modules to light simultaneously; avoided driving power to be subject to the impact of larger starting current; effectively protect driving power, be conducive to extend the useful life of driving power, reduced power failure.
Further, aforementioned delay circuit comprises the voltage divider that two resistance form, and the charge and discharge capacitance device that is connected to this voltage divider output.When capacitor is charged to the threshold values of electronic switch, turn on-switch; During power-off, electric capacity can pass through resistance repid discharge.
Or, aforementioned control switch assembly is a charging delay circuit and semiconductor switch, this semiconductor switch is a powerful triode, the control end of triode is connected with the output of charging delay circuit, the output of triode is connected with LED or LED module, and the power end of triode is connected with power supply; The input of delay circuit is connected with power supply.After powering on; the voltage of charging delay circuit slowly raises; after triode amplifies, increase lentamente the electric current of the triode output of flowing through, with the electric current reaching by LED or LED module, increase gradually; brightness increases gradually; until normal work, thereby effectively avoided driving power to be subject to the impact of larger starting current, effectively protected driving power; in the useful life that is conducive to extend driving power, reduced power failure.
Further, aforementioned charging delay circuit comprises the voltage divider that two resistance form, and the charging capacitor that is connected to this voltage divider output.When capacitor is charged to the threshold values of triode, triode starts to connect; During power-off, electric capacity can pass through resistance repid discharge.
With respect to prior art; the beneficial effect that the utility model adopts technique scheme to reach is: simple and practical, significantly reduced impulse current when LED street lamp starts, and effectively protected driving power; in the useful life that is conducive to extend driving power, reduced power failure.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the principle schematic of another execution mode of the present utility model.
Fig. 3 is the principle schematic of another execution mode again of the present utility model.
Description of reference numerals 1, radiator 2, bimetal release 3, LED module 4, LED 5, delay circuit 6, electronic switch 7, charging delay circuit.
Embodiment
Below in conjunction with accompanying drawing, preferred implementation of the present utility model is described.
Embodiment 1: referring to Fig. 1, and a kind of gradually bright LED4 street lamp of turning on light, it mainly comprises some LEDs 4 and radiator 1; It is characterized in that: LED street lamp also comprises controls the LED4 in LED street lamp or LED module 3 is lighted successively or all gradually bright control switch assemblies; Aforementioned control switch assembly is the different bimetal release 2 of several temperature expansion coefficients being arranged on radiator 1, and bimetal release 2 inputs are connected with power supply, and output is connected with LED4 or LED module 3.Wherein, bimetal release 2 is further arranged on the side of radiator 1.Preferably, the switch motion temperature interval of 2 of bimetal releases is 2 ℃.
Embodiment 2: referring to Fig. 2, except control switch assembly, the present embodiment other parts are identical with embodiment 1, and in the present embodiment, control switch assembly is an electronic sequence switch, and electronic sequence switch comprises some grades of delay circuits 5 and electronic switching device SW1; Electronic switching device SW1 is preferably integrated logical type electronic switching device device; The input input of initial one-level delay circuit 5 is connected with power supply, and the input of next stage delay circuit 5 is connected on electronic switch 6 outputs of upper level, and every grade of electronic switch 6 outputs are connected with LED4 or LED module (L11, L21, Ln1).Particularly, delay circuit 5 comprises two resistance (R11, R21; R12, R22; R1n, R2) voltage divider that forms, and the charge and discharge capacitance device (C1, C2, Cn) that is connected to this voltage divider output.Preferably, between the time delay of delay circuit 5 for being 2 seconds ~ 10 seconds.
Embodiment 3: referring to Fig. 3, except control switch assembly, the present embodiment other parts are identical with embodiment 1, in the present embodiment, control switch assembly is a charging delay circuit 7 and semiconductor switch, and this semiconductor switch is a powerful triode Q1, and the control end of triode Q1 is connected with the output of charging delay circuit 7, the output of triode Q1 is connected with LED4 or LED module (L4, L5, Ln), and the power end of triode Q1 is connected with power supply; The input of delay circuit 5 is connected with power supply.Particularly, charging delay circuit 7 comprises the voltage divider that two resistance (R1, R2) form, and the charging capacitor C3 that is connected to this voltage divider output.Preferably, between the time delay of delay circuit 5 for being 50 seconds ~ 200 seconds.
Above is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, do not departing under the prerequisite of the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (6)
1. the gradually bright LED street lamp of turning on light, it mainly comprises some LEDs and radiator; It is characterized in that: LED street lamp also comprises controls the LED in LED street lamp or LED module is lighted successively or all gradually bright control switch assemblies; Aforementioned control switch assembly is the different bimetal release of several temperature expansion coefficients being arranged on radiator, and bimetal release input is connected with power supply, and output is connected with LED or LED module.
2. the gradually bright LED street lamp of turning on light as claimed in claim 1, is characterized in that: described control switch assembly is an electronic sequence switch, and electronic sequence switch comprises some grades of delay circuits and electronic switching device; The input input of initial one-level delay circuit is connected with power supply, and the input of next stage delay circuit is connected on the electronic switch output of upper level, and every grade of electronic switch output is connected with LED or LED module.
3. the gradually bright LED street lamp of turning on light as claimed in claim 2, is characterized in that: described delay circuit comprises the voltage divider that two resistance form, and the charge and discharge capacitance device that is connected to this voltage divider output.
4. the gradually bright LED street lamp of turning on light as claimed in claim 1, it is characterized in that: described control switch assembly is a charging delay circuit and semiconductor switch, this semiconductor switch is a powerful triode, the control end of triode is connected with the output of charging delay circuit, the output of triode is connected with LED or LED module, and the power end of triode is connected with power supply; The input of delay circuit is connected with power supply.
5. the gradually bright LED street lamp of turning on light as claimed in claim 4, is characterized in that: described charging delay circuit comprises the voltage divider that two resistance form, and the charging capacitor that is connected to this voltage divider output.
6. the gradually bright LED street lamp of turning on light as claimed in claim 1, is characterized in that: described bimetal release is arranged on the side of radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203212.5U CN203827576U (en) | 2014-04-24 | 2014-04-24 | LED street lamp lighted with gradient in luminance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203212.5U CN203827576U (en) | 2014-04-24 | 2014-04-24 | LED street lamp lighted with gradient in luminance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203827576U true CN203827576U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203212.5U Expired - Fee Related CN203827576U (en) | 2014-04-24 | 2014-04-24 | LED street lamp lighted with gradient in luminance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203827576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041365A (en) * | 2018-06-27 | 2018-12-18 | 重庆卓创国际工程设计有限公司 | Intelligent lighting system |
-
2014
- 2014-04-24 CN CN201420203212.5U patent/CN203827576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041365A (en) * | 2018-06-27 | 2018-12-18 | 重庆卓创国际工程设计有限公司 | Intelligent lighting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150424 |
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| EXPY | Termination of patent right or utility model |