CN201145244Y

CN201145244Y - Self-refrigeration cooling LED lamp

Info

Publication number: CN201145244Y
Application number: CNU2007200617219U
Authority: CN
Inventors: 陈炳武
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-18
Filing date: 2007-12-18
Publication date: 2008-11-05
Anticipated expiration: 2017-12-18

Abstract

The utility model relates to a high-power self-cooling radiating LED illuminating lamp, consisting of a lamp cap, a housing, an LED illuminating element and a radiator, etc., wherein, the inside of the radiator is provided with a cooling pipe which is encapsulated with cooling agent fluid inside, the periphery of the cooling pipe is connected with radiating fins or cooling plates, the high-power LED illuminating element is stuck at the sealing bottom of the cooling pipe, when the temperature of the place where a chip is arranged is higher than the boiling point temperature of the cooling agent, the cooling agent is vaporized to bring the heat at the bottom to the upper end of the pipeline, after the heat is transmitted to the pipe wall and the cooling plates, the cooling agent is condensed to form drops flowing back to the bottom and is circulated after absorbing the heat, thereby reducing the temperature of the pipe bottom, ensuring that the temperature of the chip does not increase overhigh and fulfilling the purposes of delaying the light decay process and prolonging the service life of the lamp. The high-power self-cooling radiating LED illuminating lamp also has the advantages that the structure is simple, the LED power can be increased relatively, and the cost of the lamp with the same power is lowered, thereby having practical social and economical benefits.

Description

From the refrigeration heat radiating LED lamp

Technical field

The utility model relates to lighting device, is specifically related to the LED lighting technical field.

Background technology

The conventional radiator structure design of the many employings of existing high-power LED illuminating lamp, it promptly generally is the outer surface that the heat of led chip generation is delivered to lamp housing by the heat conductivility of metal, be dispersed in the air then and go, but the heat conductivility of this design is limited, after the power of LED increased, heat can not in time pass apace, will cause chip temperature to surpass the operating temperature of permission, the light decay process of chip is accelerated, and useful working life shortens.Therefore the heat radiation of LED light fixture is bad is to influence the factor of LED lamp to more high-power development.

Goal of the invention

The utility model provides a kind of new designing from the refrigeration radiator structure, and purpose is to improve the heat conduction and heat radiation performance of high-power LED lamp, promotes light fixture and develops to more high-power direction, and can improve the useful working life of LED.

Summary of the invention

The technical solution of the utility model is: have in the light fixture from the refrigeration radiator, form by at least one coolant tubes and the radiating fin or the heat radiation plate that are connected on the coolant tubes caliber, inject an amount of refrigerant liquid working medium in the coolant tubes, sealed at both ends, high-power LED luminescent part is mounted on the closed bottom position of coolant tubes, its operation principle is, when the temperature of die sites rises to the boiling temperature of refrigerant liquid, the top that heat of vaporization rises to pipeline will be vaporized and take away to refrigerant, simultaneously with heat transferred coolant tubes tube wall, after the refrigerant cooling, condense into liquid and be back to the bottom, the above exothermic process of heat absorption back recirculation, the die sites of so going down obtains cooling, allows temperature maintenance in the operating temperature range that allows.If there is not the effect of refrigerant, the heat that chip produces can only slowly little by little be delivered to the shell away from chip along the thermally conductive pathways of heat abstractor, and heat can not in time be led away apace, the just very fast rising of the temperature of chip.The heat dissipation problem of light fixture is exactly the heat dissipation problem of led chip in fact, and to have guaranteed that the temperature at chip place can not rise too high for the refrigeration of refrigerant just, and the LED light fixture has been had from the refrigeration heat dispersion.

Technique effect

Obviously, after high-powered LED lamp adopted technical solutions of the utility model, the heat conduction and heat radiation performance of light fixture greatly improved, and can improve the power of LED relatively, can delay the light decay process of led chip, improved the service life of LED lamp.

Description of drawings

Fig. 1 is the structural representation of one of technical solutions of the utility model;

Fig. 2 is the cross section view of Fig. 1;

Fig. 3, Fig. 4 are the cross section schematic top plan view of one of scheme expansion structure;

Fig. 5 is two a structural representation of technical solutions of the utility model;

Fig. 6 is the cross-sectional plan view of Fig. 5;

Fig. 7 is the cross-sectional plan view of scheme two expansion structures;

The specific embodiment

Fig. 1, Fig. 2 is the structural representation of one of concrete technical application scheme, illustrate lamp holder 1 among the figure, power module 2, housing 3, these are common or similar on the ordinary lamp and lantern, feature structure of the present utility model is from the refrigeration radiator, it is made up of with the some radiating fins 4 around being connected it coolant tubes 5, be packaged with an amount of refrigerant liquid 6 in the pipe, high-power LED luminescent part 7 is mounted on the closed bottom position of coolant tubes, same as the prior art, the power input line of power module 2 connects lamp holder 1, article 2, power supply output line is just meeting LED, negative pole, the position, termination of lamp have lens or 8 sealings of glass lid.The common available aluminum material of coolant tubes and radiating fin is made by extrusion process or extrusion process, to be boiling point cause certain simple substance liquid between 100 ℃ or the mixing material of multiple liquid substance at-10 ℃ to said refrigerant, and concrete preparation needs control flexibly according to the design considerations of light fixture.Operation principle is: when the heat that the high-power LED luminescent part chip produces makes the temperature of coolant tubes bottom surpass the boiling point of refrigerant, the part refrigerant liquid begins vaporization, steam zone after the vaporization is walked the upper end that heat is climbed to pipeline, with at the bottom of condensing into drip return tube behind the heat transferred tube wall, the above-mentioned heat absorption exothermic process of heat absorption back recirculation, so just playing the pipe bottom is the refrigeration of chip region, can avoid the temperature of chip to rise too high.

Fig. 3, Fig. 4 are the extension expansions of Fig. 1 structure, and by many coolant tubes 5 and the composite heating radiator formed of the radiating fin 4 of one with it, Fig. 3 is the vertical view of the radiator that is combined into by 7 coolant tubes; Fig. 4 then is the schematic diagram that more coolant tubes are arranged by matrix, satisfies the more designing requirement of large-power lamp with this.

Fig. 5, Fig. 6 are two structural representations of concrete technical application scheme, lamp holder 1, housing 3 equivalents one among the figure, difference is the radiator of bottom, it is made up of with the some fin 9 of vertical closed assembly on its caliber at a certain distance coolant tubes 5, be packaged with an amount of refrigerant liquid 6 in the pipe, high-power LED luminescent part 7 is mounted on the closed bottom position of coolant tubes.Operation principle is with aforementioned.

Fig. 7 is the extension expansion structure vertical view of scheme two, and this radiator is installed in the identical folded fin 9 side by side by many (illustrating 7 among the figure) coolant tubes 5, can be to many great power LEDs refrigeration simultaneously heat radiation.

Coolant tubes is made by metal material, and preferred copper or aluminium matter tubing is made, and fin 9 is formed by the sheet metal punching out, and preferred aluminium sheet is made.

Above-mentioned said refrigerant be boiling point between-10 ℃ to 100 ℃ simple substance liquid or the mixing material of multiple liquid substance, concrete preparation can according to Design of Luminaires require key element flexibly control determine.

Claims

1, a kind of from the refrigeration heat radiating LED lamp, comprise LED light-emitting component, lamp holder, housing, it is characterized in that: also include from the refrigeration radiator, should have a coolant tubes at least from the refrigeration radiator, be packaged with refrigerant liquid in it, be connected with some radiating fins around the coolant tubes, high-power LED luminescent part is mounted on the closed bottom position of coolant tubes.

2, a kind of from the refrigeration heat radiating LED lamp, comprise LED light-emitting component, lamp holder, housing, it is characterized in that: also include from the refrigeration radiator, should be made up of some quantity fin that coolant tubes that is packaged with refrigerant liquid more than one and stacked vertical are installed on its caliber at interval from the refrigeration radiator, high-power LED luminescent part is mounted on the closed bottom position of coolant tubes.

3, according to claim 1 from the refrigeration heat radiating LED lamp, it is characterized in that: coolant tubes and radiating fin are to be made by extrusion process or extrusion process with aluminum material.

4, according to claim 2 from the refrigeration heat radiating LED lamp, it is characterized in that: coolant tubes is made by metal material, and preferred copper or aluminium matter tubing is made, and said fin is formed by the sheet metal punching out, and preferred aluminum plate material is made.

5, according to claim 1 and 2 from the refrigeration heat radiating LED lamp, it is characterized in that: said refrigerant be boiling point between-10 ℃ to 100 ℃ simple substance liquid or the mixing material of multiple liquid substance.