CN102287787A

CN102287787A - Heat radiator arranged in vacuum cavity and applied to LED (Light Emitting Diode) single light source

Info

Publication number: CN102287787A
Application number: CN2010102026436A
Authority: CN
Inventors: 包绍林; 包建敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-17
Filing date: 2010-06-17
Publication date: 2011-12-21

Abstract

The invention discloses a heat radiator arranged in a vacuum cavity and applied to an LED (Light Emitting Diode) single light source. In the heat radiator, single-chip multi-core LED chips are arranged through serial and parallel combinations and silica gel is injected on the surface to seal a metal base plate so as to form a heat sink, and a light collecting lens is externally arranged; the heat of a certain surface collecting point of the vacuum cavity can be conducted to the circumference of the vacuum cavity by utilizing a suitable amount of working fluid added to the vacuum cavity in a conduction velocity 100 times of that of pure copper, and then a plurality of heat radiating fins specially arranged on circumferential surface layers of the vacuum cavity are used for radiating heat of the LED single light source, thus a purpose of fast heat radiation is realized.

Description

A kind ofly establish the radiator that vacuum cavity is used for single light source of LED

Technical field

The present invention relates to a kind of radiator that vacuum cavity is used for single light source of LED of establishing.

Technical background

Light emitting diode, being called for short LED, to have a volume little, energy consumption is low, the highlighted end, advantages such as low pressure operation, be widely used in the every profession and trade field, adopt the LED semi-conductor solid-state light source to come replace incandescent and fluorescent lamp etc., become trend, but, LED is because of being subjected to the restriction of self-characteristic, the operating temperature height can cause optical attenuation serious, influence its service life, and the illuminating lamp of single high-power LED light source, must have the faster and better radiator of thermal diffusivity more, the heat that is produced when promptly led chip being worked distributes, the radiator of existing single high-power combination LED illuminating lamp, usually adopt several led chip connection in series-parallel combinations, dense arrangement led chip light source together is fixed on the aluminium alloy plate again, and by aluminium alloy plate natural heat dissipation, the big calorimetric in being assembled by led chip one like this is far away relatively to Edge Distance, because led chip is intensive more concentrated together, the heat that is gathered is difficult to quick derivation, and work can make the temperature of led chip surpass the interior temperature of its scope in service life for a long time for a long time, thereby has influenced the illuminating effect and the service life of led chip.

Summary of the invention

Problem to be solved by this invention is to overcome prior art, and above-mentioned defective provides good again a kind of of a kind of hypervelocity of dispelling the heat to establish the radiator that vacuum cavity is used for single light source of LED.

The technical solution adopted in the present invention is, is raw material with the aluminium of perfect heat-dissipating, through large-scale aluminium extrusion, by necessary requirement.Being formulated to one, to have the radiator that is provided with many fin around the vacuum cavity be led chip quick heat radiating and can be by the big or small required setting of light source power at an end of vacuum cavity, can be multi-faceted, diversified several led light source pedestal exhaust positions a kind of establishes the radiator that vacuum cavity is used for single light source of LED, utilize and add an amount of working solution in the vacuum cavity, can conduct the principle of heat fast, heat on the described led light source pedestal exhaust position that sets on the vacuum cavity promptly is transmitted on the many fin that have on the whole vacuum cavity surrounded surface, the heat that is produced during the work of the heat sink upward led chip of pedestal promptly looses and derives, led chip is remained in the safe and reliable heat rating, solved above many disadvantages.

Above-mentioned described a kind of radiator that vacuum cavity is used for single light source of LED of establishing, wherein radiator is exactly a light fixture, add an amount of working solution in the vacuum cavity in the described radiator, the principle that can conduct heat fast is: a large amount of heat that produces when led light source is worked on set position, when this end points is heated, this heat can be near the working solution fluid vaporization the body wall, start working about 30 ℃, the vapour pressure of heating end can raise and vapour pressure is moved than the condensing gas end at the end and produced steam flow this moment, steam borrows capillary force to be back to evaporation ends and to have finished a circulation holding cooling release thermal coagulation to become liquid with fixed attention.Conduct heat by vacuum cavity, still do not alleviated the weight of light fixture self, the more important thing is that can shift diffusion to the big calorimetric that an end points produces apace causes on the whole vacuum cavity fin all around, its heat transfer rate will be 100 times of copper, 200 times of radiators that this technology of usefulness is made of aluminium will solve single light source heat radiation difficult problem of LED.

Above-mentioned a kind of radiator that vacuum cavity is used for single light source of LED of establishing, the described aluminium alloy extrusions of formulating by necessary requirement can be an also triangular form body of round body, square, rectangle body, polygonal body.

Above-mentioned a kind of radiator that vacuum cavity is used for single light source of LED of establishing, wherein vacuum cavity is the important composition part of entire radiator, be to be processed into some meters long by large-scale aluminium extrusion production equipment, interior hollow again that this aluminium section bar is required on request length is come disjunction, the height of vacuum cavity and entire radiator height are basic identical, around cavity, be provided with various fin, the seat of using the described led light source that equates with cavity hole area below the cavity is welded seal mutually, or use with cavity hole area big slightly one the circle described led light source seat, add sealing ring, use the screw fit sealing.The seat of described led light source can be formulated by necessary requirement, can be the plane shape, can be the isoceles triangle shape of cone shape, isosceles trapezoid and polyhedron-shaped.The top position of cavity is used and is equated with the cavity hole area or the aluminium sheet of big slightly circle welded seal mutually, perhaps adds sealing ring and forms vacuum cavity with the screw fit sealing.

The outward appearance of described radiator can determine that the big I of design radiator decides by calculating area of dissipation by the watt level of led light source, can apply in a flexible way in a word, but not violate this area, the spiritual scope of patent of the present invention by demand attractive in appearance.After adopting technique scheme, solved the heat radiation difficult problem that single light source chip dense arrangement of LED heat is concentrated, made led chip how hold low-temperature condition, played conclusive effect service life prolonging LED,

Description of drawings

To be that the present invention is a kind of establish the radiator three-dimensional exploded view schematic diagram that vacuum cavity is used for single light source of LED to Fig. 1.

To be that the present invention is a kind of establish the radiator sectional view schematic diagram that vacuum cavity is used for single light source of LED to Fig. 2.

To be that the present invention is a kind of establish the radiator that vacuum cavity is used for single light source of LED to Fig. 3, under the cavity

The installation diagram schematic diagram at the set led light source of face seat.

To be that the present invention is a kind of establish the radiator that vacuum cavity is used for single light source of LED to Fig. 4, on the cavity

The installation diagram schematic diagram of the cavity hush panel that face is set.

The specific embodiment:

Patent of the present invention is a kind of radiator that vacuum cavity is used for single light source of LED of establishing, the radiator that can have single LEDs power radiating effect of 50W-500W, though the description of patent of the present invention, combine certain embodiments, but it should be understood by one skilled in the art that patent of the present invention is not limited to embodiment described here, and can carry out various modifications and variations but do not deviate from the spirit and scope of the present invention.

Claims

A kind ofly establish the radiator that vacuum cavity is used for single light source of LED

1. establish the radiator that vacuum cavity is used for single light source of LED for one kind, it is characterized in that with the metallic aluminium being material, customized by concrete radiator structure requirement designing mould, be processed into interior hollow by large-scale aluminium extrusion production equipment, some rice are long, hollow in described, can make, round, positive square, rectangle, triangular form, polygonal hollow body, described apparent size and shape, also can make into circle, square, cuboid, triangle body, the aluminium section bar of the multiple style that is connected with many fin of many 1-4 millimeters between the radiating surface of gengon inner chamber body and outward appearance again with this aluminium section bar on request Len req come disjunction, again by processing, make one and have vacuum cavity, fin, heat dissipation channel, the outward appearance radiating surface is the radiator of one, utilize and add an amount of working solution in the vacuum cavity and can conduct heat fast, the heat of being assembled on a certain LED of the body seat, vacuum cavity limit, promptly spread all over whole vacuum cavity outer surface, again by the fin heat dissipation channel on the outer surface around the vacuum cavity, radiating surface heat radiation, can keep when making led light source work its specific temperature reach the long-life purpose of light source.
2. the size of described radiator integral can be by the required size of the power of single light source of LED, and by calculating to determine design, the whole superficial layer of described heat radiation except that the seat of led light source, becomes dark volume through surface oxidation treatment.
3. the outward appearance of described radiator can be determined design by demand attractive in appearance.
4. a kind of radiator that vacuum cavity is used for single light source of LED of establishing as claimed in claim 1, it is characterized in that described radiator centre is provided with a cavity, the height of cavity and radiator height are basic identical, many fin are arranged around cavity, heat dissipation channel and radiating surface, the aluminium sheet welded seal of the corresponding type shape of top and following usefulness of cavity, perhaps the aluminum plate with corresponding size adds sealing ring screw fit sealing, forms vacuum cavity
5. a kind of vacuum cavity that is provided with as claimed in claim 1, the radiator that is used for single light source of LED, the following position that it is characterized in that described radiator vacuum cavity is provided with can be by the seat of dress led light source, but the seat flat shape that sets also can be the isoceles triangle shape of cone shape, the isosceles trapezoid shape, polyhedron-shaped, set the heat sink combined light source of several pedestals by required in a word, assembling combination adds cover one collector lens on the seat of required setting.The aluminium lid plate at the top position of vacuum cavity is provided with one and vacuumizes mouth.
6. a kind of radiator that vacuum cavity is used for single light source of LED of establishing as claimed in claim 1 is characterized in that in the vacuum cavity of described radiator, adds an amount of working solution and pump drainage air, forms vacuum cavity.