A kind of two heat pipe effect high-efficiency radiator
Technical field:
The utility model relates to heat sink technology field, refers in particular to a kind of two heat pipe effect high-efficiency radiator.
Background technology:
Common radiator is generally gilled radiator, and the main aluminum alloy materials that adopts makes, and in order to strengthen heat transfer efficiency, strengthen radiating effect, there is the radiator combined with heat pipe by gilled radiator market.At present, the general heat pipe of this kind of radiator with heat pipe be perforation or embeddedly with the fin contacts of radiator, heat pipe is outside exposed, this structure is not too attractive in appearance on the one hand, the processing of radiator body is cumbersome on the other hand, and the contact of heat pipe and radiator is insufficient, affects heat-conducting effect.In a word, the heat dispersion of this kind of radiator with heat pipe still has room for promotion at present.
Utility model content:
The purpose of this utility model is the weak point overcoming existing product, provides a kind of two heat pipe effect high-efficiency radiator.
The technical solution adopted in the utility model is: a kind of two heat pipe effect high-efficiency radiator, it comprises radiator body, some radiating fins that radiator body has hollow tube-shape body and extends to its surrounding, end cap is packaged with in the hollow tube-shape body two ends of radiator body, between hollow tube-shape body inside, two end cap, be provided with at least one heat pipe, the two ends of heat pipe contact with two end cap respectively; And the confined space formed between hollow tube-shape body inside, two end cap is vacuum state and is marked with micro-liquid medium.
The body of described heat pipe is the aluminium alloy body in flat, and the body of heat pipe bends to " U " shape, and the bottom of U-shaped body is welded with bottom head covers, and the both ends of U-shaped body bend inwards respectively and weld with top end cover.
End cap central in the hollow tube-shape body top of radiator body is provided with the reserved tubule vacuumizing and note liquid medium.
The outer end of described each radiating fin be formed one with axially parallel closed type framework, the outside of each closed type framework is extended with several sub-fin again.
The side of described radiating fin, closed type framework has waveform convex-concave surface.
The utility model by forming vacuum sealing space and insert micro-liquid medium in radiator body, and installs heat pipe in this confined space inside, and form two quick conductive circulations, heat transfer efficiency significantly improves, and heat dispersion also significantly improves.In addition, the heat pipe in the utility model can adopt aluminum alloy materials, and cost also decreases, and adopts flat structure, heat pipe is contacted with radiator body more abundant; Radiator body arranges the ancillary methods such as stack effect structure, wavy surfaces, sub-fin, makes radiator integral heat conductivility, heat dispersion promotes further.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram of the utility model middle part broken section;
Fig. 2 is top view of the present utility model.
Detailed description of the invention:
Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
As Figure 1-Figure 2, described in the present embodiment is a kind of two heat pipe effect high-efficiency radiator, it comprises radiator body 1, some radiating fins 12 that radiator body 1 has hollow tube-shape body 11 and extends to its surrounding, end cap 13 is packaged with in hollow tube-shape body 11 two ends of radiator body 1, between hollow tube-shape body 11 inside, two end cap 13, be provided with at least one heat pipe 2, the two ends of heat pipe 2 contact with two end cap 13 respectively; And the confined space 100 formed between hollow tube-shape body 11 inside, two end cap 13 is vacuum state and is marked with micro-liquid medium 3.
Preferably, the body of described heat pipe 2 is the aluminium alloy body in flat, and the body of heat pipe bends to " U " shape, and the bottom of U-shaped body is welded with the end cap 13 of bottom, and the both ends of U-shaped body bend inwards respectively and weld with top end cover.The reserved tubule 14 vacuumizing and note liquid medium is provided with in end cap 13 center at hollow tube-shape body 11 top of radiator body 1.
During use, the heating surface close contact of the article such as the bottom head covers 13 of radiator and LED; The utility model by installing heat pipe 2 in the confined space 100 of radiator inside, add that its inner space is vacuum state and injects micro-liquid medium 3, define two heat pipe effect, the i.e. heat-conduction effect of first general heat pipe 2, when bottom head covers 13 is heated, heat conduction is to the bottom of heat pipe 2, working media in heat pipe 2 absorbs heat rapidly and vaporizes and upwards spread, conduct to heat pipe 2 periphery again, exothermic condensation refluxes, and forms the first heat conductive circulation; It two is heat pipe effects that confined space 100 between hollow tube-shape body 11 and end cap 13 is formed, when bottom head covers 13 is heated, liquid medium 3 in confined space 100 under vacuo boiling point is extremely low, can fast endothermic vaporization, up, and rapidly by heat conduction to hollow tube-shape body 11 periphery and top end cover 13, then rely on outside radiating fin 12 quick heat radiating, condensation after the medium heat release after vaporization, along barrel backflow, form the second heat conductive circulation.
Further, the outer end of described each radiating fin 12 be formed one with axially parallel closed type framework 121, the outside of each closed type framework 12 is extended with several sub-fin 122 again.The side of described radiating fin 12, closed type framework 121 has waveform convex-concave surface.Stack effect can be formed by closed type framework 121, the air that bottom is first heated can rise along framework, at the cross-ventilation of formation up and down of closed type framework 121, waveform convex-concave surface, sub-fin 122 etc. can increase the efficiently radiates heat area of whole radiator, thus strengthen radiating effect further.
In sum, the utility model by forming the confined space 100 of vacuum and insert micro-liquid medium 3 in radiator body 1, and installs heat pipe 2 in this confined space 100 inside, forms two quick conductive circulations, heat transfer efficiency significantly improves, and heat dispersion also significantly improves.In addition, the heat pipe in the utility model can adopt aluminum alloy materials, and cost also decreases, and adopts flat structure, heat pipe is contacted with radiator body more abundant; Radiator body arranges the ancillary methods such as stack effect structure, wavy surfaces, sub-fin, makes radiator integral heat conductivility, heat dispersion promotes further.
Simple embodiment of the present utility model shown in above-described embodiment and accompanying drawing; those skilled in the art can when not departing from the utility model thought; various modifications or change are made to above-described embodiment; thus protection domain of the present utility model not limit by above-described embodiment, and should be the maximum magnitude of the inventive features that claims are mentioned.