CN104006366B - A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe - Google Patents
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe Download PDFInfo
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- CN104006366B CN104006366B CN201410248675.8A CN201410248675A CN104006366B CN 104006366 B CN104006366 B CN 104006366B CN 201410248675 A CN201410248675 A CN 201410248675A CN 104006366 B CN104006366 B CN 104006366B
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Abstract
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, belongs to dedicated illumination technical field.Including gravity assisted heat pipe, gravity assisted heat pipe is made up of evaporator section, condensation segment, the internal evacuation of gravity assisted heat pipe also fills heat-conducting medium, each condensation segment outer wall is equipped with radiating fin, between each condensation segment, space is equipped with metal sidewall, metal sidewall, the alignment of condensation segment top, gravity assisted heat pipe is equipped with upper cover；Upper cover, gravity assisted heat pipe, metal sidewall constitute power source cavity after enclosing, and arrange burst panel, arrange power module in the power source cavity of burst panel side in power source cavity；Being equipped with heat sink bottom gravity assisted heat pipe, heat sink bottom surface arranges LED light source module, LED light source module periphery is equipped with lampshade and constitutes light-source chamber.Above-mentioned a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, simple in construction, practicality, radiating effect is good, and power supply is mutually isolated with light source, can realize higher requirement of explosion proof.
Description
Technical field
The invention belongs to dedicated illumination technical field, a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe.
Background technology
At underground coal mine, Oil production sites and refinery, easily there is explosive gas mixture or combustible dust cloud in the occasions such as chemical workshop, the lighting of these occasions needs have explosion prevention function, prevents light fixture from producing electric arc, spark or the high temperature material such as damp, combustible dust that ignites sets off an explosion or burns.At present the light source of conventional explosion-proof lamp particularly explosion suppression type explosion-preventing lamp is mainly the gas-discharge lamps such as fluorescent lamp, high-pressure mercury lamp, Metal halogen lamp, there is heavy metal pollution to varying degrees, starts the shortcomings such as time length, light efficiency are the highest.LED, as forth generation light source, has luminous efficiency high, and color rendering properties is good, the advantages such as running voltage is low, becomes the preferred light source of following explosion-proof lamp.The power density of great power LED is about 30% up to hundreds of W/cm2, electro-optical efficiency at present, and LED chip volume is the least in addition, and therefore the heat flow density at its chip is high.Bad heat radiation can cause the decline of LED luminous efficiency, service life reduction, spectral drift even to burn chip, and too high temperature also makes explosion-proof lamp cannot meet the T5/T6 temperature standard of II, III electric appliances, it is impossible to use in the environment of some damp.
Retrieval for prior art finds, number of patent application 201010215572.3, invention entitled explosion-proof lamp.Its radiator structure used is upwards uniform projection multiple thermal column portion outside lamp casing, and each thermal column portion includes multiple fin-shaped radiating ribs, leaves predetermined gap between each fin-shaped radiating ribs.Owing to each radiating ribs is the most penetrating, this radiator structure easily produces dust stratification, affects radiating effect.
Number of patent application 201310291756.1, invention entitled a kind of LED anti-explosion lamp based on radiating structure.This technology uses and fin is placed on enclosure interior, and sidewall has ventilation slot, lower surface and connects with radiating shell upper surface and form internal heat dissipating passage together with radiating shell.It is contemplated that built-in fin radiating effect is relatively poor, although the generation of dust stratification can be slowed down to a certain extent, but the dust stratification increasing over time accumulation can be deposited in lamp interior, makes heat-sinking capability decline.
Number of patent application 201220341889.6, the entitled a kind of LED anti-explosion lamp of utility model.This technology uses and is fixed on together with heat pipe on the side of column-like projection block by LED light source module, and the heat pipe other end is connected with heat dissipation base.The radiator structure using heat pipe can improve the radiating effect of light fixture, but the sectional area of every heat pipe limits radiating effect, and many heat pipes add the number of faying face, are unfavorable for being fabricated to the explosion-proof lamp of the types such as flame-proof type.
Summary of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to design and a kind of simple in construction, practicality, the technical scheme of the efficient LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe are provided, its radiating effect is good, and power supply is mutually isolated with light source, can realize higher requirement of explosion proof.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that including gravity assisted heat pipe, gravity assisted heat pipe is made up of evaporator section, condensation segment, evaporator section is bowl structure, and condensation segment is more than one and is distributed in evaporator section edge surrounding, and the internal evacuation of gravity assisted heat pipe also fills heat-conducting medium, each condensation segment outer wall is equipped with radiating fin, between each condensation segment, space is equipped with metal sidewall, and metal sidewall, the alignment of condensation segment top, gravity assisted heat pipe is equipped with upper cover；Upper cover, gravity assisted heat pipe, metal sidewall constitute power source cavity after enclosing, and arrange burst panel, arrange power module in the power source cavity of burst panel side in power source cavity；Being equipped with heat sink bottom gravity assisted heat pipe, heat sink bottom surface arranges LED light source module, LED light source module periphery is equipped with lampshade and constitutes light-source chamber.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that bottom gravity assisted heat pipe, being equipped with base, Shade base, lampshade top is connected with Shade base, is equipped with metal net mask outside lampshade, and metal net mask top is connected with base engagement.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that arrange aperture bottom gravity assisted heat pipe, the wire of power module connects LED light source module through aperture.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that gravity assisted heat pipe uses copper, aluminum or its alloy to make, its outer layer wall thickness 1.0-3.0mm, internal layer wall thickness 5-10mm.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that metal sidewall uses copper, aluminum, cast iron or its alloy to make, and the thickness of metal sidewall is 5-10mm, and metal sidewall welds cooperation with gravity assisted heat pipe junction.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that the evaporator section bottom interior surface of gravity assisted heat pipe arranges one group of heating column, condensation segment inner surface arranges water conservancy diversion groove, and gravity assisted heat pipe inner surface other parts carry out the rough surfaceization of sandblasting and process.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that heat-conducting medium is trichorotrifluoroethane, water, ethanol or acetone, and when the loading of heat-conducting medium does not works with gravity assisted heat pipe, liquid volume accounts for the 1/4-1/3 of evaporator section.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that radiating fin uses punching press or welding manner to be fixed on each condensation segment outer wall.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that LED light source module is made up of one or more than one high-power LED encapsulation, heat sink for metal-core printed circuit board, ceramic substrate or aluminium alloy base plate.
Described a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that condensation segment is 3-8, is uniformly distributed 10-30 triangle radiating fin outside condensation segment.
Above-mentioned a kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, simple in construction, practicality, radiating effect is good, and power supply is mutually isolated with light source, can realize higher requirement of explosion proof；LED chip temperature is directly proportional to the speed of gravity assisted heat pipe heat absorption-evaporation-condensation-backflow, and temperature more high cooling efficiency is the best, and radiator is suitable for wider lamp power scope；The heat-conducting medium that component selections is suitable can be become according to the explosion gas of explosion-proof lamp use occasion or combustible dust；Gravity assisted heat pipe internal strengthening radiating treatment can effectively promote heat conductivility, and vertical trench beneficially condensed fluid is back to rapidly evaporator section, prevents to dry up；Power source cavity and light-source chamber are separate, improve the safety criterion that light fixture is explosion-proof, and power supply is not on the heat dissipation channel of LED chip, and chip heating is less on power source temperature impact；Integration processing mode, is constituted power source cavity by gravity assisted heat pipe, it is possible to reduce faying face quantity, increases the physical strength of light fixture.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Section A-A schematic diagram in Fig. 1；
Fig. 3 is the section B-B schematic diagram of Fig. 1；
Fig. 4 is the structural representation of another embodiment of the present invention；
In figure: 1-upper cover, 2-gravity assisted heat pipe, 21-evaporator section, 22-condensation segment, 23-heat-conducting medium, 24-heating column, 25-water conservancy diversion groove, 3-radiating fin, 4-LED light source module, 5-is heat sink, 6-power module, 7-lampshade, 8-metal net mask, 9-power source cavity, 10-light-source chamber, 11-aperture, 12-wire, 13-metal sidewall, 14-flame proof baffle plate, 15-base, 15a-Shade base.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is illustrated.
As shown in the figure, this LED anti-explosion lamp includes gravity assisted heat pipe 2, gravity assisted heat pipe 2 is made up of evaporator section 21 and Duo Gen condensation segment 22, evaporator section 21 is in bowl structure, condensation segment 22 is more than one and is distributed in evaporator section 21 edge surrounding, gravity assisted heat pipe 2 is internal is hollow structure, the internal evacuation of gravity assisted heat pipe 2 also fills heat-conducting medium 23, each condensation segment 22 outer wall is equipped with radiating fin 3, between each condensation segment 22, space is equipped with metal sidewall 13, metal sidewall 13, the alignment of condensation segment 22 top, gravity assisted heat pipe 2 is equipped with upper cover 1；Upper cover 1, gravity assisted heat pipe 2, metal sidewall 13 constitute power source cavity 9 after enclosing, and arrange burst panel 14, arrange power module 6 in the power source cavity 9 of burst panel 14 side in power source cavity 9；Being equipped with heat sink 5 bottom gravity assisted heat pipe 2, heat sink 5 bottom surfaces arrange LED light source module 4, LED light source module 4 periphery is equipped with lampshade 7, and to constitute light-source chamber 10, power source cavity 9 and light-source chamber 10 mutually isolated.Gravity assisted heat pipe 2 bottom welding arranges base 15, Shade base 15a, and lampshade 7 top is connected with Shade base 15a, and lampshade 7 is outside is equipped with metal net mask 8, and metal net mask 8 top is connected with base 15.Arranging aperture 11 bottom gravity assisted heat pipe 2, the wire 12 of power module 6 is connected through aperture 11 with LED light source module 4.Gravity assisted heat pipe 2 uses copper, aluminum or its alloy to make, it would however also be possible to employ other metal is made；Gravity assisted heat pipe 2 outer layer wall thickness 1.0-3.0mm, gravity assisted heat pipe 2 internal layer wall thickness 5-10mm.Metal sidewall 13 uses copper, aluminum, cast iron or its alloy to make, it would however also be possible to employ other metal is made；The thickness of metal sidewall 13 is 5-10mm, and metal sidewall 13 uses welding manner seamless link with gravity assisted heat pipe 2 junction.
Described gravity assisted heat pipe 2 is internal carries out multiple strengthening radiating treatment, wherein evaporator section 21 bottom interior surface utilizes spark cutting technology to generate the heating column 24 that rectangle is spacedly distributed, the height of heating column 24, the parameter such as size and spacing can be spaced by changing electric pulse, electronic pulse width, cutting spacing, current intensity etc. are changed, gravity assisted heat pipe 2 inner surface other parts carry out the rough surfaceization of sandblasting and process, increase the adhesive ability of heat-conducting medium 23, and heat-conducting medium 23 back-flow velocity after the water conservancy diversion groove 25 that condensation segment inner surface etching is parallel with it improves liquefaction.
The internal evacuation of described gravity assisted heat pipe 2 also fills heat-conducting medium 23, when loading does not works with gravity assisted heat pipe 2, liquid volume accounts for the 1/4-1/3 of evaporator section 21, heat-conducting medium 23 should have heat stability and compatible with gravity assisted heat pipe 2 case material, significant physical change or chemical reaction will not occur, the temperature level being suitable for according to explosion-proof lamp, may select the low-boiling point liquids such as trichorotrifluoroethane, water, ethanol, acetone.
Described rectangular heat dissipation fin 3 punching press or welding manner are fixed on outside condensation segment 22, and in order to be dispersed into rapidly in air by heat, its section typical structure such as Fig. 3 becomes the flower-shaped structure distribution of the sun.
Described LED light source module 4 is formed by one or many high-power LED encapsulation, it is placed on heat sink 5, heat sink 5 may select metal-core printed circuit board, ceramic substrate or aluminium alloy base plate etc., and the materials such as heat sink 5 fixedly mount with gravity assisted heat pipe 2 lower surface, central filler heat-conducting glue are to increase heat conductivility.
Described gravity assisted heat pipe 2, metal sidewall 13 and upper cover 1 constitute power source cavity 9, its junction is screwed with plane faying face or seam faying face, elastic or compressible liner is placed in faying face, including but not limited to be coated with rubber or the plastic gasket of fire proofing, liner act as preventing moisture, imflammable gas or dust from entering power source cavity.
The transparent material such as safety glass or Merlon chosen by described lampshade 7, constitutes light-source chamber 10 with gravity assisted heat pipe 2, and the outer metal net mask 8 placing steel matter of lampshade 7 is protected.
Described flame proof baffle plate 14 is the metal baffle being connected with upper cover 1, as flame proof baffle plate after insertion power source cavity 9, can individually be isolated by power module 6.
In conjunction with Fig. 1, introduce its concrete operation principle: when LED light source module 4 works, the heat produced is through heat sink 5 evaporator sections 21 reaching gravity assisted heat pipe 2, liquid heat-conducting medium 23 seethes with excitement after absorbing heat, the heat-conducting medium 23 of vaporization is risen along condensation segment 22 tube wall of gravity assisted heat pipe 2 and is dispersed in air by radiating fin 3 by heat, heat-conducting medium 23 returns to liquid and rapidly returns back to evaporator section 21 along water conservancy diversion groove 25 under gravity after discharging heat, it is achieved the quick derivation of heat.Vaporization-heat transfer-the Liquefaction Rate of heat-conducting medium 23 is directly proportional to the power of LED light source module 4, and power more golf calorific value is the biggest, and the circulation rate of heat-conducting medium 23 is the fastest, and therefore this gravity assisted heat pipe is applicable to bigger power bracket.This design structure is installed in the range of can meeting explosion-proof lamp-45o-45o, if increasing angle of inclination further, only need to suitably increase the quantity of heat-conducting medium 23.Power source cavity 9 and light-source chamber 10 are mutually isolated, the power module 6 flame proof baffle plate 14 being easily generated most electric spark is separated simultaneously, this flameproof lamp structure is made to meet flame proof requirement, and the gravity assisted heat pipe 2 of integration is as a part for lamp housing, decrease the quantity of faying face, also improve the explosive-proof grade of light fixture.
Fig. 2 gives the Section A-A schematic diagram of gravity assisted heat pipe 2 in Fig. 1, it is seen that heating column 24 is distributed on heat pipe evaporator section 21 with uniform rectangular.
Fig. 3 gives the section B-B schematic diagram of Fig. 1; the number of visible condensation segment 22 is 4; 18 triangle radiating fins 3 it are uniformly distributed in the outside of explosion-proof lamp lamp housing; it should be noted that; the shape of cross section of condensation segment 22 and the quantity of radiating fin 3 and radiating fin 3 all can be changed according to actual requirement; it will be apparent to those skilled in the art that within all these changes and deforms the protection domain that all should belong to the claims in the present invention.
Fig. 4 is the structural representation of another embodiment of the present invention, in this embodiment, radiating fin 3 horizontal positioned, can ensure that each radiating fin 3 all has good physical contact with condensation segment 22, but the fin horizontal positioned of horizontal positioned can reduce the coefficient of heat convection, and easy sedimentating dust, so this embodiment is less be applicable to dust and uses draughty environment.
It should be pointed out that, that the above detailed description of the invention can make those skilled in the art that the present invention is more fully understood, but limit the present invention never in any form.Therefore; although the present invention has been described in detail by this specification referring to the drawings with embodiment; but; skilled artisan would appreciate that; still the present invention can be modified or equivalent; in a word, all are without departing from the technical scheme of the spirit and scope of the invention and improvement thereof, and it all should be contained within the protection domain of the invention patent.
Claims (9)
1. the LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that including gravity assisted heat pipe (2), gravity assisted heat pipe (2) is by evaporator section (21), condensation segment (22) is constituted, evaporator section (21) is in bowl structure, condensation segment (22) is more than one and is distributed in evaporator section (21) edge surrounding, the internal evacuation of gravity assisted heat pipe (2) also fills heat-conducting medium (23), each condensation segment (22) outer wall is equipped with radiating fin (3), between each condensation segment (22), space is equipped with metal sidewall (13), metal sidewall (13), align in condensation segment (22) top, gravity assisted heat pipe (2) is equipped with upper cover (1)；Upper cover (1), gravity assisted heat pipe (2), metal sidewall (13) constitute power source cavity (9) after enclosing, and arrange burst panel (14), arrange power module (6) in the power source cavity (9) of burst panel (14) side in power source cavity (9)；Gravity assisted heat pipe (2) bottom is equipped with heat sink (5), and heat sink (5) bottom surface arranges LED light source module (4), and LED light source module (4) periphery is equipped with lampshade (7) and constitutes light-source chamber (10)；Evaporator section (21) bottom interior surface of gravity assisted heat pipe (2) arranges one group of heating column (24), and condensation segment (22) inner surface arranges water conservancy diversion groove (25), and gravity assisted heat pipe (2) inner surface other parts carry out the rough surfaceization of sandblasting and process.
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that gravity assisted heat pipe (2) bottom is equipped with base (15), Shade base (15a), lampshade (7) top is connected with Shade base (15a), lampshade (7) is outside is equipped with metal net mask (8), and metal net mask (8) top is connected with base (15).
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that gravity assisted heat pipe (2) bottom arranges aperture (11), and the wire (12) of power module (6) connects LED light source module (4) through aperture (11).
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that gravity assisted heat pipe (2) uses copper, aluminum or its alloy to make, its outer layer wall thickness 1.0-3.0mm, internal layer wall thickness 5-10mm.
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that metal sidewall (13) uses copper, aluminum, cast iron or its alloy to make, the thickness of metal sidewall (13) is 5-10mm, and metal sidewall (13) welds cooperation with gravity assisted heat pipe (2) junction.
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that heat-conducting medium (23) is trichorotrifluoroethane, water, ethanol or acetone, when the loading of heat-conducting medium (23) does not works with gravity assisted heat pipe (2), liquid volume accounts for the 1/4-1/3 of evaporator section (21).
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that radiating fin (3) uses punching press or welding manner to be fixed on each condensation segment (22) outer wall.
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterized in that LED light source module (4) is made up of one or more than one high-power LED encapsulation, heat sink (5) are metal-core printed circuit board, ceramic substrate or aluminium alloy base plate.
A kind of LED anti-explosion lamp dispelled the heat by force based on gravity assisted heat pipe, it is characterised in that condensation segment (22) is 3-8, condensation segment (22) is outside is uniformly distributed 10-30 triangle radiating fin (3).
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| CN106031592B (en) * | 2015-03-09 | 2020-12-01 | 浙江绍兴苏泊尔生活电器有限公司 | Hot pot |
| CN105715969A (en) * | 2016-04-06 | 2016-06-29 | 内蒙古博特科技有限责任公司 | Thermal superconductivity high-power LED illuminating device |
| CN108857271A (en) * | 2018-06-05 | 2018-11-23 | 浙江超亿消防装备有限公司 | A kind of firm pressure resistant type fire extinguishing cylinder |
| CN109340633B (en) * | 2018-11-28 | 2021-08-31 | 佛山市世普科技照明有限公司 | Spontaneous slow-reflection reciprocating patch LED mining lamp capable of maintaining high transmittance |
| CN116293590A (en) * | 2023-03-08 | 2023-06-23 | 祥华防爆科技有限公司 | An explosion-proof lamp shell structure with double protection |
| CN120379205A (en) * | 2025-03-25 | 2025-07-25 | 响水振勋电子有限公司 | Heat dissipation enhancement type current sensor shell |
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| CN201396609Y (en) * | 2009-06-19 | 2010-02-03 | 中山辉量普光电科技有限公司 | Heat dissipation integrated LED illuminating lamp |
| CN102109128A (en) * | 2009-12-28 | 2011-06-29 | 大连金三维科技有限公司 | Semiconductor light source mining lamp |
| CN202171216U (en) * | 2011-05-13 | 2012-03-21 | 湖北小天地科技有限公司 | Heat-tube heat sink large-power light-emitting diode (LED) structure |
| CN102384449A (en) * | 2011-11-03 | 2012-03-21 | 苏州晶雷光电照明科技有限公司 | LED (light-emitting diode) lamp easy to dissipate heat |
| CN202598449U (en) * | 2011-12-20 | 2012-12-12 | 国研高能（北京）稳态传热传质技术研究院有限公司 | A phase-change sunflower-shaped radiator for heat dissipation of a large-power LED |
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| CN104006366A (en) | 2014-08-27 |
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