CN202396032U - LED (light-emitting diode) spotlight provided with driving board without electrolytic capacitor - Google Patents
LED (light-emitting diode) spotlight provided with driving board without electrolytic capacitor Download PDFInfo
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- CN202396032U CN202396032U CN2011204537188U CN201120453718U CN202396032U CN 202396032 U CN202396032 U CN 202396032U CN 2011204537188 U CN2011204537188 U CN 2011204537188U CN 201120453718 U CN201120453718 U CN 201120453718U CN 202396032 U CN202396032 U CN 202396032U
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Abstract
The utility model relates to an LED (light-emitting diode) spotlight provided with a driving board without an electrolytic capacitor. The LED spotlight comprises a driving board without an electrolytic capacitor, a light source module and an outer shell of a spotlight, wherein the driving board without the electrolytic capacitor is installed in the cavity of the outer shell of the spotlight; and the light source module is placed at the upper part of the outer shell of the spotlight. The LED spotlight is characterized in that the driving board without the electrolytic capacitor comprises a power supply input circuit, an over-current over-voltage protection circuit, an anti-interference circuit, a rectification filtering circuit, a power supply voltage stabilizing circuit and a control circuit which are connected in sequence, wherein voltage pulse signals output by the control circuit are coupled to a secondary stage through an inductance coupling circuit, or is supplied to the driving circuit for use after being subjected to filtering and voltage stabilizing through the filtering circuit. Because a design without the electrolytic capacitor is adopted by the LED spotlight, the volume is reduced, and the service life of the LED spotlight is ensured.
Description
Technical field
The utility model relates to the LED field of illuminating lamps, relates in particular to a kind of LED shot-light of no electrolytic capacitor drive plate.
Background technology
Shot-light is a kind of typical modern school lighting; Have advantages such as the reflector refracting power is strong, optically focused property is good, light is soft; But flexible Application is in fields such as commercial lighting, decorative lightings, can realize giving prominence to the key points, environment uniqueness, levels are rich, strong, the in riotous profusion colorful artistic effect of atmosphere.Traditional shot-light adopts Halogen lamp LED more, and luminous efficiency is lower, relatively power consumption, illuminated ambient temperature are risen, useful life is short.LED is far superior to the traditional lighting product on the aspect of principle of luminosity, energy-saving and environmental protection; And the LED shot-light has following major advantage:
the LED response speed fast; Luminous efficiency is high, can solve the problem of conventional light source poor starting; The not mercurous harmful element that waits of
LED shot-light; Alternative conventional incandescent helps environmental protection;
the white LED light source colour temperature tone that adopts can be selected design; Satisfy the varying environment demand; Also be used for public illumination, also can be used for the bedroom illumination;
LED shot-light adopts DC driven; Need higher stability and fail safe, and design is more flexible; 5. white light LEDs all can be realized high color rendering index (CRI) at 2700K in the 9000K scope, and the vision that helps people is healthy.6. the luminous one-way of LED has formed the perfection support to the shot-light luminous intensity distribution.
But; Owing to make the driver module less stable that the LED shot-light is adopted; After working in hot environment or working thousands of hours, driver module has just reached its life-span, and circuit performance descends even scraps; Make the life-span of driver module have only 1/tens of the white LED light source life-span, had a strong impact on the useful life of LED shot-light.At present; For the life-span and stability that prolong the LED shot-light, main way has two kinds: the one, and adopt high thermal conductive silicon fat pad sheet to increase the heat-sinking capability between led light source and the heat-radiating substrate, and the LED shot-light is carried out structural design; Make it the contact area enough, promote its radiating rate with air; The 2nd, adopt and change driver module, or change the electrochemical capacitor that uses on the driver module, circuit is keeped in repair.The advantage of method one is that heat dissipation design reduces the influence of heat to white LED light source and driver module, and its shortcoming is the R&D costs of the manufacturer of increase, and can not fundamentally solve the influence of temperature to the element of electrochemical capacitor and other driver modules; Method two has increased the maintenance cost of LED shot-light.These two kinds of methods can not fundamentally solve driver module and unmatched problem of led light source life-span.
In view of this, the inventor furthers investigate to the LED shot-light of no electrolytic capacitor drive plate, and this case produces thus.
Summary of the invention
The utility model purpose is to provide a kind of LED shot-light of no electrolytic capacitor drive plate, and the driving design of its no electrolytic capacitor has circuit and exports advantage stable, the light fixture long service life.
In order to reach above-mentioned purpose, the solution of the utility model is:
A kind of LED shot-light of no electrolytic capacitor drive plate; Comprise no electrolytic capacitor drive plate, light source module, shot-light shell; Said no electrolytic capacitor drive plate is installed in the shot-light shell cavity; Said light source module is placed on the shot-light shell upper, it is characterized in that: said no electrolytic capacitor drive plate comprises power supply input circuit, overcurrent-overvoltage protecting circuit, anti-jamming circuit, current rectifying and wave filtering circuit, power supply stabilization circuit and the control circuit that connects successively, the voltage pulse signal of said control circuit output; Be coupled to secondaryly through inductive coupling circuit, or behind the filter circuit filtering voltage regulation, supply with drive circuit and use.
As a kind of preferred version, said no electrolytic capacitor drive plate is removed traditional electrochemical capacitor from, and its control circuit has the effect of detection and filtering ripple, and performance is superior to electrochemical capacitor filtering.
As a kind of preferred version, the slight change of the electric current of said drive circuit relatively feeds back to said control circuit with reference voltage after the current sampling circuit sampling, and said control circuit is regulated output voltage according to value of feedback, reaches the effect of burning voltage.
As a kind of preferred version, said light source module is made up of high-power LED light source and heat-radiating substrate, adopts conductive coefficient bonding greater than the heat-conducting silicone grease of 1.8 W/mk between high-power LED light source and the heat-radiating substrate.
As a kind of preferred version, the gross power of said high-power LED light source is 1～15W.
As a kind of preferred version, said heat-radiating substrate processes metallic plate by the high thermal conductivity metal or the high thermal conductivity ceramic material is processed ceramic wafer.
As a kind of preferred version, the LED shot-light of said no electrolytic capacitor drive plate is exempted from the electrochemical capacitor design, and the shot-light shell can be widely used in fields such as commercial lighting according to different occasion designs with lighting angle.
After adopting such scheme, the utlity model has following effect:
One, because the LED shot-light is taked the design of no electrolytic capacitor drive plate; Make drive plate not receive the influence of electrochemical capacitor; Improve the stability of drive plate, making it useful life and LED life-span mate, for the white light LEDs shot-light becomes real long-life, energy-conservation, non-maintaining new light sources raising guarantee.
Two, owing to adopted control circuit, drive circuit and current sampling circuit are played the supervision effect, guarantee the stability of voltage and current output, and then improved the stability of LED shot-light.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model no electrolytic capacitor drive plate.
Embodiment
For letting the above-mentioned feature and advantage of the utility model can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs., elaborates as follows.
The LED shot-light of a kind of no electrolytic capacitor drive plate of the utility model; Comprise no electrolytic capacitor drive plate, light source module, shot-light shell; Said no electrolytic capacitor drive plate is installed in the shot-light shell cavity; Said light source module is placed on the shot-light shell upper, it is characterized in that: said no electrolytic capacitor drive plate comprises power supply input circuit, overcurrent-overvoltage protecting circuit, anti-jamming circuit, current rectifying and wave filtering circuit, power supply stabilization circuit and the control circuit that connects successively, the voltage pulse signal of said control circuit output; Be coupled to secondaryly through inductive coupling circuit, or behind the filter circuit filtering voltage regulation, supply with drive circuit and use.
As a kind of preferred version, said no electrolytic capacitor drive plate is removed traditional electrochemical capacitor from, and its control circuit has the effect of detection and filtering ripple, and performance is superior to electrochemical capacitor filtering.
As a kind of preferred version, the slight change of the electric current of said drive circuit relatively feeds back to said control circuit with reference voltage after the current sampling circuit sampling, and said control circuit is regulated output voltage according to value of feedback, reaches the effect of burning voltage.
As a kind of preferred version, said light source module is made up of high-power LED light source and heat-radiating substrate, adopts conductive coefficient bonding greater than the heat-conducting silicone grease of 1.8 W/mk between high-power LED light source and the heat-radiating substrate.
As a kind of preferred version, the gross power of said high-power LED light source is 1～15W.
As a kind of preferred version, said heat-radiating substrate processes metallic plate by the high thermal conductivity metal or the high thermal conductivity ceramic material is processed ceramic wafer.
As a kind of preferred version, the LED shot-light of said no electrolytic capacitor drive plate is exempted from the electrochemical capacitor design, and the shot-light shell can be widely used in fields such as commercial lighting according to different occasion designs with lighting angle.
Product form of the foregoing description and graphic and non-limiting the utility model and style, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from the patent category of the utility model to its suitable variation or modification of doing.
Claims (5)
1. the LED shot-light of a no electrolytic capacitor drive plate; Comprise no electrolytic capacitor drive plate, light source module, shot-light shell; Said no electrolytic capacitor drive plate is installed in the shot-light shell cavity; Said light source module is placed on the shot-light shell upper, it is characterized in that: said no electrolytic capacitor drive plate comprises power supply input circuit, overcurrent-overvoltage protecting circuit, anti-jamming circuit, current rectifying and wave filtering circuit, power supply stabilization circuit and the control circuit that connects successively, the voltage pulse signal of said control circuit output; Be coupled to secondaryly through inductive coupling circuit, or behind the filter circuit filtering voltage regulation, supply with drive circuit and use.
2. the LED shot-light of a kind of no electrolytic capacitor drive plate according to claim 1; It is characterized in that: the slight change of the electric current of said drive circuit; After the current sampling circuit sampling, relatively feed back to said control circuit with reference voltage; Said control circuit is regulated output voltage according to value of feedback, reaches the effect of burning voltage.
3. the LED shot-light of a kind of no electrolytic capacitor drive plate according to claim 1; It is characterized in that: said light source module is made up of high-power LED light source and heat-radiating substrate, adopts conductive coefficient bonding greater than the heat-conducting silicone grease of 1.8 W/mk between said high-power LED light source and the heat-radiating substrate.
4. the LED shot-light of a kind of no electrolytic capacitor drive plate according to claim 3 is characterized in that: the gross power of said high-power LED light source is 1～15W.
5. the LED shot-light of a kind of no electrolytic capacitor drive plate according to claim 3 is characterized in that: said heat-radiating substrate is the metallic plate or the ceramic wafer of high thermal conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204537188U CN202396032U (en) | 2011-11-16 | 2011-11-16 | LED (light-emitting diode) spotlight provided with driving board without electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204537188U CN202396032U (en) | 2011-11-16 | 2011-11-16 | LED (light-emitting diode) spotlight provided with driving board without electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202396032U true CN202396032U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204537188U Expired - Fee Related CN202396032U (en) | 2011-11-16 | 2011-11-16 | LED (light-emitting diode) spotlight provided with driving board without electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202396032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475209A (en) * | 2013-09-29 | 2013-12-25 | 武汉理工大学 | Non-electrolytic-capacitor high-power-factor correction device and method |
-
2011
- 2011-11-16 CN CN2011204537188U patent/CN202396032U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475209A (en) * | 2013-09-29 | 2013-12-25 | 武汉理工大学 | Non-electrolytic-capacitor high-power-factor correction device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20131116 |