A kind of water-refrigeration LED road lamp that combines with wind-force
Technical field
The present invention relates to the cooling of electric pyrogenicity body, particularly the water-refrigeration LED road lamp that combines of a kind of and wind-force that can dispel the heat to high power LED bulb holder fast.
Background technology
In recent years, along with the continuous development of LED material epitaxy and chip technology, the LED luminous efficiency improves constantly, and its application is also progressively widened.Brainstrust estimates one after another that also LED will replace incandescent lamp and fluorescent lamp becomes lighting source of new generation.The LED lighting source is compared with fluorescent lamp with traditional incandescent lamp, and huge advantage is arranged: 1. at first the LED volume is little, and the life-span is long, and structure closely can realize the large tracts of land array, moreover LED do not contain harmful lead and mercury, has avoided the pollution to environment simultaneously; 2. LED uses the dc source of low-voltage to drive, and does not therefore have the 50Hz stroboscopic of traditional lighting light source; 3. traditional illuminating lamp radiation area can produce a large amount of heat, and the radiation area of LED mainly concentrates on visible region mainly at infrared region, produces heat hardly, is a kind of cold light source, and is therefore not only energy-conservation but also eliminated electromagnetic wave beyond the visible light to the harm of human body; 4. the packaged back of LED anti-vibration, security is good, can be applied under the various rugged environments; 5. the LED response time lacks and is degradation failure.The green illumination light source that cause has these significant advantages, LED will become 21st century gradually is that situation becomes.
LED when the light fixture, mainly need handle heat radiation and luminous intensity distribution two large problems as light source applications of new generation well; At present, occurred the high-power LED street lamp product on the market, utilized high-power LED light source to replace the light source of conventional road lamp, except will solving the luminous intensity distribution problem, heat dissipation problem is the key issue that LED street lamp product needed solves.General LED street lamp is in order to solve heat dissipation problem, and the radiator structure design is complicated, consumptive material is many, structure is heavy, and its radiating effect is also desirable not to the utmost.
Summary of the invention
For solving the heat dissipation problem of above-mentioned high-power LED street lamp, the present invention is intended to propose a kind of water-refrigeration LED road lamp that combines with wind-force.
The present invention addresses the above problem the technical scheme that is adopted: a kind of water-refrigeration LED road lamp that combines with wind-force, the great power LED diode is installed on the substrate of good heat conductivity, it is characterized in that: substrate is connected with heat sink fitting tightly, heat sink and water self-circulating device form good heat conduction and are connected, and one or more wind-force agitating device is installed on the water self-circulating device.
Great power LED diode of the present invention is by inlaying or the mode and the substrate of bonding are connected and fixed, substrate and heat sink to fit tightly welding fixing, form good heat conduction and connect, the heat that makes the great power LED light emitting diode be produced passes to heat sink the heat radiation by substrate.The water self-circulating device is successively by water inlet pipe, water tank, outlet pipe with water mouth with pass the loop that heat sink pipeline serial connection forms connection; Water inlet pipe is connected the bottom of water tank sidewall, and outlet pipe is connected the top of water tank side, and this mode is convenient to heat sinkly separate with water tank; Perhaps the water self-circulating device is a water tank with water mouth, heat sinkly fits tightly and is welded in the water tank bottom surface or directly weld on it as the bottom surface of water tank, and the bottom surface of this mode water tank directly is heat sink, and promptly heat sink one side directly directly contacts with recirculated water.Water tank is selected a material by metal, plastics and pottery and is made; Heat sinkly make by hot good conductor materials such as aluminium, potteries.The wind-force agitating device is connected to form by power transmission shaft and stirring vane by windmill; Power transmission shaft is installed on the water tank wall, and stirring vane places water tank, and windmill places outside the water tank, thereby utilize wind-force to quicken the water circulation LED road lamp cap is cooled off.
The invention has the beneficial effects as follows: the heat sink of LED road lamp cap cooled off thereby utilize the wind-force agitating device to quicken the water circulation, the present invention is simple in structure, cost is low, good heat dissipation effect and utilize wind-force can quicken water circulation and do not need other extra power, make LED be in all the time under the lower temperature in this way and work, thereby keep higher luminous efficiency; Make the timely heat radiation of great power LED improving its service life, improve the service life of whole lamp.
Description of drawings
Fig. 1 wind-force agitating device of the present invention structural representation;
The stirring vane schematic diagram of Fig. 2 wind-force agitating device of the present invention;
The windmill schematic diagram of Fig. 3 wind-force agitating device of the present invention;
Fig. 4 embodiment of the invention one structural representation;
Fig. 5 is inventive embodiments two structural representations;
Among the figure: 1. great power LED; 2. substrate; 3. heat sink; 4. heat sink pipeline; 5. water inlet pipe; 6. water tank; 7. water filling port; 8. outlet pipe; 9. wind-force agitating device; 9.1 windmill; 9.2. power transmission shaft; 9.3. stirring vane.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment one
As Fig. 1~Fig. 3 and shown in Figure 4, a kind of water-refrigeration LED road lamp that combines with wind-force, great power LED
1 diode is connected and fixed by inlaying with substrate 2, and it is fixing that substrate 2 and heat sink 3 fits tightly welding, and the water self-circulating device is successively by water inlet pipe 5, with water mouth 7 water tank 6, outlet pipe 8 with pass the loop that heat sink 3 pipeline 4 serial connections form connection; Water inlet pipe 5 is connected the bottom of water tank 6 sidewalls, and outlet pipe 8 is connected the top of water tank 6 sides, and water tank 6 is made by metal material; Heat sink 3 are made by aluminum, heat sink 3 form good heat conduction with the water self-circulating device is connected, because adopt pipeline that water tank 6 and heat sink 3 is connected, the housing that the utility model water tank 6 can be installed on street lamp when therefore using is independent outward, or water tank 6 and street lamp shell combination are fixed together; The present invention is an example so that a wind-force agitating device 9 to be installed on the water self-circulating device, and wind-force agitating device 9 is connected to form by power transmission shaft 9.2 and stirring vane 9.3 by windmill 9.1; Power transmission shaft 9.2 is installed on water tank 6 walls, and stirring vane 9.3 places water tank 6, and windmill 9.1 places outside the water tank 6.
The outward winding seal cover of the water filling port 7 on the water tank 6, inject water toward water filling port 7, in water tank 6 and pipeline, all fill with water, screw the seal cover of water tank 6 water filling ports 7, start power supply, circuit board in the street lamp drives great power LED 1 work, and LED is converted to luminous energy another part to an electric energy part and then is converted to heat energy; The heat that LED produces is transmitted to heat sink 3, and the water self-circulating device is taken away unnecessary heat by heat sink 3, make LED be in all the time under the lower temperature in this way and work, thereby keep higher luminous efficiency, the whole LED road lamp system also is in comparatively stable duty.The groundwork principle of water self-circulating device is to utilize the temperature variant principle of water density, when coolant-temperature gage during greater than 4 ℃ temperature rising density reduce, this moment, temperature higher water can float and the lower water of temperature can sink, make cooling water flow into water tanks 6 and the cooling water of outlet pipe 8 flows out from water tank 6 from water inlet pipe 5, windmill 9.1 in the wind-force agitating device 9 drives the water that blade 9.3 stirs in the water tank 6 by power transmission shaft 9.2 simultaneously, quicken the circulation of water, can take away heat sink 3 unnecessary heats fast in this way, thereby constantly cool off heat sink 3.Be that the present invention utilizes the self-loopa characteristic of water when heating to come heat sink 3 of LED road lamp cap is cooled off, and utilize wind-force acceleration water circulation and do not need other extra power that the present invention is simple in structure, cost is low, good heat dissipation effect.
Embodiment two
As Fig. 1~Fig. 3 and shown in Figure 5, a kind of water-refrigeration LED road lamp that combines with wind-force, great power LED 1 diode is connected and fixed by inlaying with substrate 2, it is fixing that substrate 2 and heat sink 3 fits tightly welding, compare different being with embodiment one: the water self-circulating device only fits tightly and be welded in water tank 6 bottom surfaces for the sealing radiator 6 heat sink 3 that has water filling port 7 or directly as welding on it the bottom surface of water tank 6, promptly heat sink 3 one side contacts with cooling water in the direct water tank 6.Identical with embodiment one, present embodiment also is to utilize water adding the self-loopa characteristic of pining for, quicken the circulation of cooling water by wind-force agitating device 9, dispel the heat to heat sink 3 to reach fast, make great power LED 1 of the present invention can remain on a stable operating temperature and improve its service life, present embodiment is heat sink 3 directly to be water tank 6 bottom surfaces, therefore make the water tank 6 of present embodiment can be directly and lamp housing one-body molded, make that the structure of street lamp is more compact.Of the present invention heat sink 3 can directly dispel the heat to solar LED street lamp equally.