CN101476709A - Gravity circulation vaporization cooling apparatus of high-power LED lamp - Google Patents
Gravity circulation vaporization cooling apparatus of high-power LED lamp Download PDFInfo
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- CN101476709A CN101476709A CNA2009101148927A CN200910114892A CN101476709A CN 101476709 A CN101476709 A CN 101476709A CN A2009101148927 A CNA2009101148927 A CN A2009101148927A CN 200910114892 A CN200910114892 A CN 200910114892A CN 101476709 A CN101476709 A CN 101476709A
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Abstract
The invention discloses a gravity circular evaporating and cooling device for a high power LED light, which is characterized in that the evaporating and cooling device comprises an evaporating chamber provided with a heat conducting substrate and a condensing chamber positioned at the upper end of the evaporating chamber; and the evaporating chamber part of the evaporating and cooling device is provided with an LED light, and a light tube pin of the LED light is subjected to heat conduction with a coolant liquid in the evaporating chamber by integrally and fixedly connecting heat conducting substrate. The device has the advantages of simple structure and excellent heat radiating effect, and can be widely applied to outdoor illumination equipment.
Description
Technical field
The invention belongs to the heat abstractor field of lighting apparatus, be specifically related to a kind of gravity circulation vaporization cooling apparatus of high-powered LED lamp.
Background technology
Along with the development and the change of lighting source technology, people are to seek a kind of easy to use, low energy consumption, high brightness, light source cheaply to the higher target of the pursuit of light.Now the light source that possesses energy-conservation notion becomes important problem in this century because the influence of energy shortage and environment aspect the stage.The requirement of energy-saving and emission-reduction shows illumination in the prior art, and decorate, the advertisement electric light source is had higher requirement.LED (LightEmitting Diode), light emitting diode become comparatively satisfactory light source of present stage.Compare with fluorescent tube with osram lamp of the prior art, LED has the advantage that working voltage is low, usefulness is high, volume is little, the life-span is long, stability is strong, the response time is short, color can be changeable, and does not have problems such as high power consumption that osram lamp and fluorescent tube exist, frangible and mercury pollution.
LED is a kind of solid-state semiconductor devices, and it can directly be converted into light to electricity.Its core is a semi-conductive wafer, and an end of wafer is attached on the support, and an end is a negative pole, and the other end connects the positive pole of power supply, makes entire wafer by epoxy encapsulation.Semiconductor wafer is made up of two parts, and a part is a P-type semiconductor, occupies an leading position in its hole, the inside, and the other end is a N-type semiconductor, mainly is electronics here.But when these two kinds of semiconductors couple together, just form one " P-N knot " between them.When electric current acted on this wafer by lead, electronics will be pushed to the P district, and electronics will send energy with the form of photon then with hole-recombination in the P district.And the light wavelength color of light just is by the material decision that forms the P-N knot.
Light emitting diode is a kind of injection lelctroluminescence device.Under the extra electric field effect, the radiation recombination in electronics and hole and the electricity that takes place cause effect 10%～15% of energy are converted into luminous energy, and the vibration of the lattice of radiationless compound generation is converted into heat energy with all the other energy of 85%～90%.Different with illuminating device traditional in the prior art, do not comprise infrared part in the luminescent spectrum of LED, its heat can not rely on radiation to discharge.And as also can distribute heat in the converter work of the power source of LED illuminator, different with other light source be that the maximum operating temperature that the electronic device in LED pipe and the converter can bear is very low, generally is no more than 70 ℃.The overheated electronic device that causes is damaged, and even directly influences the system-wide service behaviour life-span.The LED lamp of former instinct operate as normal more than 50,000 hours just discharged insufficiently because of heat in the work, is difficult in actual applications break through 10,000 hours, and the hundreds of of can only working that has is hour just no longer luminous.
In recent years, along with people to the going deep into of the research of LED lamp, the heat dissipation technology of LED lamp has been carried out a large amount of research.High-power LED street lamp was disclosed on August 23rd, 2006 as Chinese patent application CN1821651A, comprise heat dissipation base, be embedded with at least three LED lamps that are connected in the heat dissipation base concave bottom surface, heat dissipation base recess periphery is fitted with diffuser, has the bar body radiator of ad hoc meter with the corresponding outside of heat dissipation base concave bottom surface, LED lamp lamp sleeve is connected to corresponding lens, clamped the lens securing cover plate between heat dissipation base and the diffuser, this lens securing cover plate is shaped on the lens opening with the corresponding number of LED lamp, and the lens end is through the lens opening build-in of correspondence.Its heat abstractor principle is to utilize a plurality of LED lamps to be contained in the requirement that reaches the actual light photograph on the same big radiator, but the bar shaped radiator that only leans on its back is to space heat elimination, inefficiency, power also are difficult to accomplish requirement, the huge expensive cost that causes otherwise the light fixture volume will become.
Chinese patent application CN1807971A disclosed a kind of LED high-power illumination lamp in the prior art on July 26th, 2006, it is characterized in that illuminating lamp is by the luminous array of LED, the reflector array plate corresponding of front side with the LED array chip, the band radiating fin metallic heat radiating plate of rear side, and the superimposed composition of cooling fan, the luminous array of LED is arranged on the insulating circuit board by the LED luminescence unit to be formed, the LED luminescence unit is directly installed on the surface by led chip to be had on the metal fin of insulating barrier, and led chip has the translucent cover of band reflector outward.Its radiating principle is to utilize fan forced convection to reach effective in the heat quick heat radiating on its backside heat device, and reaches the purpose of heat radiation, yet the life-span of fan is limited.
Chinese patent application CN101178171A disclosed a kind of heat dissipating method that utilizes the LED lamp of air pressure and wind-tunnel in the prior art on May 14th, 2008, by the circuit board in LED lamp housing and the housing, heat sink on power supply and the constant-current source constitutes an airflow path, be provided with air inlet holes and airflow path connection in lamp holder end, the diameter of the aperture of air inlet holes and ventilation duct or support bar or electric pole is complementary, ventilation duct or support bar or electric pole are hollow pipe, be communicated with airflow path by air inlet holes, lower end at ventilation duct or support bar or electric pole has air inlet, the other end of airflow path has venthole on housing, the draught head that cold air stream forms owing to the height of ventilation duct or support bar or electric pole, air is risen in the passage that hollow pipe forms naturally, in airflow path, form distinguished and admirable, with circuit board, the heat that produces when power supply and constant-current source work is taken out of outside the housing at any time, reaches heat radiation.This method works long hours and has a large amount of dust and deposit in lamp, influence heat radiation and very easily accidents caused.
Chinese patent ZL200720119365.1 is in a kind of high-powered LED lamp heat radiation on June 25th, 2008 array in the prior art, mainly form by a plurality of cell arrays, each unit mainly comprises radiating bottom plate, the thermal steering device, U type radiating fin and LED luminescence component are formed, it is characterized in that: the exiting surface array of LED lamp the luminous heat-radiating integrated unit of a plurality of high-powered LED lamps, each unit all interconnects and is fixed into as a whole with the radiating fin of adjacent cells by separately, the periphery of the heat-radiating integrated unit on the vertical direction of exiting surface forms a plurality of heat radiation passages that surrounded by corresponding linking to each other of radiating fin, and this heat radiation passage is at the easy stack effect that forms from bottom to top of LED work adstante febre.The heat radiation of its LED pipe is bad, and complex structure, cost height, and this also is the FAQs place of existing technologies.
Summary of the invention
Main purpose of the present invention is to provide a kind of gravity circulation vaporization cooling apparatus of high-powered LED lamp, and it is poor or structure is complicated, manufacturing cost is than problems such as height to have solved in the prior art high-powered LED lamp radiating effect.
In order to solve these problems of the prior art, technical scheme provided by the invention is as follows:
A kind of gravity circulation vaporization cooling apparatus of high-powered LED lamp is characterized in that described evaporation-cooled device comprises vaporization chamber with heat-conducting substrate and the condensation chamber that is positioned at the vaporization chamber upper end; The vaporization chamber of described evaporation-cooled device partly is provided with the LED lamp, the luminous tube pin of described LED lamp by fixedlying connected with the heat-conducting substrate one of vaporization chamber with vaporization chamber in cooling medium liquid body heat conduction.
Preferably, the vaporization chamber of described device comprises two heat-conducting substrates that connected by the thermal conductive metal pipe rivet welding, filling refrigerant liquid between substrate, and the luminous tube pin of described LED lamp is fixing by the heat-conducting substrate one welding of thermal conductive metal pipe and vaporization chamber.
Preferably, to be selected from metal system be high heat-radiating substrate with pottery to described substrate; More preferred, described heat-conducting substrate is selected from pottery, Cu/Mo alloy heat sink, Cu/W alloy heat sink, aluminium sheet or copper coin; The chip of described LED lamp sticks on the substrate by the chip attach material, and encapsulates by encapsulating material; Described thermal conductive metal pipe is selected from copper pipe, aluminum pipe.
Preferably, the vaporization chamber of described device comprises the refrigerant liquid by filling between two substrates and two substrates, on the substrate of fixedly connected LED lamp fluorescent tube screw or screw element is set, and the luminous tube pin of described LED lamp is fixed by screw socket and vaporization chamber substrate one.
Preferably, the thickness of substrate is in 0.2～2mm scope, and more preferred range is 0.5～1.0mm; The spacing range of two substrates is at 1～8mm, and more preferred range is at 2～5mm; Connect by the copper pipe rivet welding between two substrates, described copper pipe is arranged in rectangular; Described high-powered LED lamp luminous tube pin runs through described copper pipe and substrate welding.
Preferably, the vaporization chamber of described device comprises by two substrates, on the substrate of fixedly connected LED lamp fluorescent tube screw or screw element is set, and the luminous tube pin of described LED lamp is fixed by screw socket and vaporization chamber substrate one.
Preferably, the thickness of substrate is in 0.2～2mm scope, and more preferred range is 0.5～1.0mm; The spacing range of two substrates is at 1～8mm, and more preferred range is at 2～5mm; Adopt the punching tapping on the described substrate or adopt pre-buried screw element that screw or screw element are set, the luminous tube pin of described LED lamp is fixed by screw socket and vaporization chamber substrate one.
Preferably, the luminous tube pin of described LED lamp is the tubulose of port sealing, is communicated with refrigerant in the pipe; Preferably, the luminous tube pin of the described LED lamp outside or inboard are thread segment, cooperate fixedly connected with screw socket or screw element on the vaporization chamber.
Preferably, a plurality of luminous tube pins of described LED lamp are connected fixedly connected with the vaporization chamber one.
Preferably, the encapsulating material between the chip printed board of the substrate of the vaporization chamber of described evaporation-cooled device and its outside LED lamp is an insulating heat-conduction material.
Preferably, the chip printed board of described LED lamp is connected airtight encapsulation by chip attach material and insulating heat-conduction material, substrate.The chip attach material is selected from heat-conducting glue, conductivity type silver slurry, tin slurry and gold-tin alloy scolder; Insulating heat-conduction material is selected from epoxy resin, pottery, silicones.
Preferably, vaporization chamber one side of described device is provided with the cooling medium charging mouth of end cap seal, and opposite side communicates with vapor-liquid separation chamber; Filling refrigerant liquid between described vaporization chamber substrate.
Preferably, the insulating materials that described vaporization chamber housing is an one is made, great power LED, driving power are encapsulated in the housing, its housing lower wall is transparent quartz glass, LED lamp fluorescent tube welding ends is two substrates that be arranged in parallel, and the luminous tube pin of described LED lamp and vaporization chamber substrate welding one are fixed.
Preferably, connect by vapor-liquid separation chamber between described device vaporization chamber, the condensation chamber, described condensation chamber comprises refrigerant gas ascending tube, the refrigerant liquid down pipe that is connected with vapor-liquid separation chamber; Described gas ascending tube, refrigerant liquid down pipe upper end are provided with fin tube condenser, and the upper end of fin tube condenser offers the air discharge ports of end cap seal.
Preferably, described refrigerant gas ascending tube is communicated with the top, upper end of vapor-liquid separation chamber, and the bottom, lower end of refrigerant liquid down pipe and vapor-liquid separation chamber is communicated with or the top, upper end of running through vapor-liquid separation chamber extends to bottom the lower end.
Preferably, described fin tube condenser comprises collector tube, and refrigerant liquid down pipe upper end is communicated with collector tube; Several rectangular aluminum pipes that the collector tube upper end is welded to connect for the aluminium sheet spiral; Described refrigerant gas ascending tube goes upward to liquid collecting aluminum pipe top or is communicated with the branch vapour aluminum pipe of rectangular aluminum pipe top setting.
Preferably, it is rectangular aluminum pipe that a plurality of cross sections are set in the described condensation chamber, the intensive snakelike thin aluminum sheet of welding between described rectangular aluminum pipe, described rectangular aluminum pipe bottom is connected by collector tube, refrigerant liquid down pipe is connected with described collector tube bottom, and described rectangular aluminum pipe top can be provided with branch vapour aluminum pipe and be connected with described refrigerant gas ascending tube; Perhaps described refrigerant gas ascending tube extends described collector tube top; The inside diameter ranges of described aluminum pipe inner chamber is between 0.5～5mm, and more preferred range is between 1～2mm.
Preferably, described refrigerant gas ascending tube, refrigerant liquid down pipe are the compatible electric insulating tube of refrigerant, and refrigerant liquid down pipe, refrigerant gas ascending tube independently are provided with or the socket setting; Described vapor-liquid separation chamber independently be provided with or with vaporization chamber, condensation chamber or one of be wholely set.
Preferably, described refrigerant gas ascending tube and refrigerant liquid down pipe are the compatible electric insulating tube of refrigerant, and refrigerant liquid down pipe places the inside of refrigerant gas ascending tube or the inside that refrigerant gas ascending tube places refrigerant liquid down pipe.
Preferably, described evaporation-cooled device comprises that several vaporization chamber unit form the vaporization chamber group, is linked in sequence by the vaporization chamber tube connector between the vaporization chamber unit, is connected by vapor-liquid separation chamber between vaporization chamber group and condensation chamber.
Another object of the present invention is to the high-powered LED lamp that provides a kind of, comprise evaporation-cooled device, driving power, the power device of described driving power mounts the vaporization chamber heat-conducting substrate outside that is arranged on evaporation-cooled device.
Preferably, the power device of described driving power is a converter, and the heater element of described converter attaches the vaporization chamber part outside that is arranged on evaporation-cooled device.
Another purpose of the present invention is to provide a kind of outdoor lighting equipment, comprises support bar, it is characterized in that post upper connects described high-powered LED lamp; The gravity circulation vaporization cooling apparatus condensation chamber upper end of described high-powered LED lamp is provided with cover plate; The evaporation-cooled device vaporization chamber and the vapor-liquid separation chamber of described LED lamp are wholely set.
Beneficial effect of the present invention
Technical solution of the present invention adopts the principle of gravity circulating and evaporating cooling to carry out heat dissipation design, structurally, the evaporation-cooled device employing vaporization chamber of technical scheme of the present invention is positioned at the lower end of condensation chamber, and being fixed as one by vaporization chamber partial L ED lamp luminous tube pin and vaporization chamber reaches the effect of heat radiation.The inventor does not comprise infrared part through the discovery that studies for a long period of time in the luminescent spectrum of LED lamp, the heat of generation can not discharge by radiation.Employing of the present invention is fixedlyed connected the pin of one and is carried out the heat conduction with vaporization chamber, play beyond thought effect.Vaporization chamber adopts the two substrates heat conduction structure in the technical scheme of the present invention, utilizes the good heat-conduction effect of copper, greatly improves the thermal conduction effect of LED lamp luminous tube pin.
The LED lamp luminous tube pin that adopts in optimal technical scheme of the present invention is the tubulose of port sealing, is communicated with refrigerant in the pipe, is convenient to the interior evaporative heat loss of pin that refrigerant enters the LED lamp like this.The substrate of pin and vaporization chamber adopts copper pipe welding one or connects airtight one by screw socket in the optimal technical scheme, has strengthened the substrate fixed effect of LED lamp and vaporization chamber, plays good conduction of heat again.The LED luminous tube pin outside has thread segment in the optimal technical scheme, makes it directly to be installed on the vaporization chamber that is made of pottery or other insulator that the metal embedded part is housed.
LED fluorescent tube or fluorescent tube chip adstante febre in the technical solution of the present invention, heat conducts to the vaporization chamber substrate portion by pin, because vaporization chamber substrate inboard is a refrigerant liquid, in vaporization chamber, produce steam behind the refrigerant heated liquid, steam is the refrigerant gas ascending tube partial condensation at condensation chamber through vapor-liquid separation chamber, is back to vaporization chamber through refrigerant liquid down pipe.
In optimal technical scheme of the present invention, the power device of LED fluorescent tube and driving power all is arranged on the outside of vaporization chamber, its heating part all pastes and is arranged on the vaporization chamber, temperature when such integrated design makes the LED lamp operation greatly reduces, and plays the effect to the power device cooling of driving power.Condensation chamber adopts the finned tube condenser pipe in the optimal technical scheme, is back in the vaporization chamber through refrigerant liquid down pipe in conjunction with aluminum pipe condensation in the finned tube, plays hydronic effect.
The LED pipe that adopts in the preferred version of the present invention is the flat package pipe of a band heat-radiating substrate formula, then the heat-radiating substrate of LED pipe, the heater element of converter is directly attached the outer surface that is arranged on the vaporization chamber substrate.The converter one of employing LED pipe and driving power is fitted in and carries out heat dissipation design in the vaporization chamber in the preferred technical solution of the present invention, reaches integral heat sink effect preferably.
In sum, the present invention directly is connected in the refrigerant liquid that is immersed in vaporization chamber with the refrigerant contact or by metal by at least one pin with LED lamp fluorescent tube, obtain one simple in structure, the high-powered LED lamp of good heat dissipation effect, this technical scheme can be applied in the outdoor lighting equipment.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the structural representation of embodiment of the invention evaporation-cooled device;
Fig. 2 is an embodiment of the invention evaporation-cooled device vaporization chamber part-structure schematic diagram; Wherein the LED luminous tube pin is weldingly fixed on the substrate of vaporization chamber;
Fig. 3 is another embodiment of the present invention evaporation-cooled device LED lamp tube structure schematic diagram; Wherein a pin hollow is used for the heat conduction in two kinds of packing forms, and a pin is used for being electrically connected; Wherein (a) is used for the packing forms that LED manages up and installs forward; (b) be used for the packing forms that LED manages down and installs forward;
Fig. 4 is LED fluorescent tube hollow pin and the evaporation-cooled device connection diagram of Fig. 3;
Fig. 5 is the structural representation of the evaporation-cooled device of a plurality of vaporization chamber series connection in further embodiment of this invention;
Fig. 6 is the schematic diagram that is electrically connected of parallel connection after the series connection of Fig. 5; Wherein insulation of vaporization chamber tube connector or vaporization chamber insulation;
Fig. 7 for the back in parallel of Fig. 5 in parallel be electrically connected schematic diagram; Wherein the vaporization chamber tube connector is nonisulated or vaporization chamber is nonisulated;
Fig. 8 is the structural representation of the another evaporation-cooled device of the present invention, wherein LED lamp fluorescent tube belt substrate;
Fig. 9 is the structural representation of further embodiment of this invention outdoor lighting equipment.
Wherein, among Fig. 1,1 is vaporization chamber, 2 is the power device of driving power, and 3 is LED lamp fluorescent tube, and 4 is the chip printed board, 5 is insulating heat-conduction material, 6 is cold-resistant matchmaker's insulation tube, and 7 is vapor-liquid separation chamber, and 8 is refrigerant liquid down pipe, 9 is refrigerant gas ascending tube, 10 is fin tube condenser, and 11 is the cooling medium charging mouth, 12 air discharge ports.Among Fig. 2,21 is direct insertion high-powered LED lamp fluorescent tube, 22 copper pipes for welding, and 23 is the LED luminous tube pin, 24 is refrigerant liquid; 31 is that LED fluorescent tube, 32 is the pin of hollow among Fig. 3, and 33 for being electrically connected pin; 41 LED pins among Fig. 4 for band external screw thread hollow, 42 is that screw, 43 is the tube connector of vaporization chamber for vaporization chamber copper coin, 44 for refrigerant liquid, 45; Among Fig. 5,51 pins, 52 for the electrical connection of LED fluorescent tube are that the pin, 53 of the LED lamp hollow of hollow is the vaporization chamber unit; Among Fig. 8,81 is LED lamp fluorescent tube, and 82 is heat-conducting substrate, and 83 is vaporization chamber, and 84 is refrigerant liquid, and 85 is vaporization chamber unit tube connector; Among Fig. 9,91 is support bar, and 92 is cover plate, and 93 is condensation chamber, and 94 is that vaporization chamber, vapor-liquid separation chamber are integrated; 95 is gas ascending tube and liquid down pipe.
The specific embodiment
For the technical scheme of more detailed statement foregoing invention, the following inventor lists specific embodiment and comes bright technique effect; It is emphasized that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.
The gravity circulation vaporization cooling apparatus of embodiment 1 direct insertion high-powered LED lamp
As Fig. 1 and Fig. 2, the gravity circulation vaporization cooling apparatus of this high-powered LED lamp, this device comprise vaporization chamber 1 with heat-conducting substrate and the condensation chamber that is positioned at the vaporization chamber upper end; Vaporization chamber comprises two heat-conducting substrates that connected by the thermal conductive metal pipe rivet welding, filling refrigerant liquid between substrate, and fluorescent tube 3 pins of LED lamp are fixing by the heat-conducting substrate one welding of thermal conductive metal pipe and vaporization chamber.This heat-conducting substrate is a copper coin, and thermal conductive metal pipe is a copper pipe.The thickness of substrate is about 0.5mm; The spacing range of two substrates connects by the copper pipe rivet welding between two substrates at 2mm, and described copper pipe is arranged in rectangular; The high-powered LED lamp luminous tube pin runs through copper pipe and substrate welding.
The LED light fixture has a plurality of fluorescent tubes, and at least one pin of each fluorescent tube is connected fixedly connected with the vaporization chamber one.Encapsulating material between the chip printed board 4 of the substrate of the vaporization chamber of evaporation-cooled device and its outside LED lamp is an insulating heat-conduction material 5.The chip printed board of LED lamp is connected airtight encapsulation by chip attach material and insulating heat-conduction material, substrate.Insulating heat-conduction material is selected silicones for use.Chip attach material selection gold-tin alloy scolder.
Vaporization chamber one side is provided with the cooling medium charging mouth 11 of end cap seal, and opposite side communicates with vapor-liquid separation chamber; Filling refrigerant liquid 24 between the vaporization chamber substrate.The vaporization chamber housing is that the insulating materials of one is made, great power LED, driving power are encapsulated in the housing, its housing lower wall is transparent quartz glass, and LED lamp fluorescent tube welding ends is two substrates that be arranged in parallel, and the luminous tube pin of described LED lamp is fixed with vaporization chamber substrate welding one and connected.
Connect by vapor-liquid separation chamber 7 between this device vaporization chamber, the condensation chamber, condensation chamber comprises refrigerant gas ascending tube 9, the refrigerant liquid down pipe 8 that is connected with vapor-liquid separation chamber; Gas ascending tube, refrigerant liquid down pipe upper end are provided with fin tube condenser 10, and the upper end of fin tube condenser offers the air discharge ports 12 of end cap seal.Refrigerant gas ascending tube is communicated with the top, upper end of vapor-liquid separation chamber, and the bottom, lower end of refrigerant liquid down pipe and vapor-liquid separation chamber is communicated with or the top, upper end of running through vapor-liquid separation chamber extends to bottom the lower end.
This fin tube condenser comprises collector tube, and refrigerant liquid down pipe upper end is communicated with collector tube; Several rectangular aluminum pipes that the collector tube upper end is welded to connect for the aluminium sheet spiral; Described refrigerant gas ascending tube goes upward to liquid collecting aluminum pipe top and is communicated with.It is rectangular aluminum pipe that a plurality of cross sections are set in the condensation chamber, the intensive snakelike thin aluminum sheet of welding between rectangular aluminum pipe, rectangular aluminum pipe bottom is connected by collector tube, refrigerant liquid down pipe is connected with described collector tube bottom, and rectangular aluminum pipe top can be provided with branch vapour aluminum pipe and be connected with refrigerant gas ascending tube; Perhaps refrigerant gas ascending tube extends described collector tube top; The inside diameter ranges of aluminum pipe inner chamber is about 1mm.
This refrigerant gas ascending tube, refrigerant liquid down pipe are the compatible electric insulating tube of refrigerant 6, and refrigerant liquid down pipe, refrigerant gas ascending tube independently are provided with; Vapor-liquid separation chamber independently is provided with.
The heat that distributes on the power device 2 of pipe such as the high-powered LED lamp that vaporization chamber is collected and driving power, gravity circulation theory by refrigerant passes through vapor-liquid separation chamber, refrigerant gas ascending tube with heat timely and effectively, arrive condenser, heat is dispersed in the environment the most at last, because the technical advantage of evaporative cooling itself, can guarantee that the temperature in the LED pipe remains near in the ambient temperature range, guarantee that the LED lamp can rationally use in the temperature range of safety.
This lamp is direct insertion high-powered LED lamp, the top and bottom of vaporization chamber 1 are made up of the sheet copper plate, about thickness 0.5mm, about spacing 2mm, two substrates connect by being arranged in rectangular thin copper pipe 22 rivet weldings, the pin two 3 that direct insertion great power LED fluorescent tube 21 carriages are linked to each other passes thin copper pipe welding, be used for after another pin bending being electrically connected, can effectively the heat that produces in the LED pipe be led vaporization chamber by pin like this, be connected heat radiation with vapor-liquid separation chamber with a fin tube condenser by communicating pipe again.Under the situation that does not change existing packing forms, the temperature of LED pipe is reduced greatly like this, improved the stability and the life-span of LED lamp.
Certainly, according to those of ordinary skills can understand like that, thin copper pipe can be arranged in the Any shape that other need.
The bolt connection type high-powered LED lamp of embodiment 2 band gravity circulation vaporization cooling apparatus
According to technical scheme of the present invention, technical scheme of the present invention can be made following adjustment and change, and Fig. 2 has provided concrete packing forms different in two, to be applicable to different LED pipe installation requirements.
As Fig. 1 and Fig. 3, the gravity circulation vaporization cooling apparatus of this high-powered LED lamp, this device comprise vaporization chamber 1 with heat-conducting substrate and the condensation chamber that is positioned at the vaporization chamber upper end; Vaporization chamber comprises the refrigerant liquid by filling between two substrates and two substrates, on the substrate 43 of fixedly connected LED lamp fluorescent tube 3 screw or screw element is set, and the luminous tube pin of described LED lamp is fixed by screw socket and vaporization chamber substrate one.This heat-conducting substrate is a copper coin 43, and thermal conductive metal pipe is a copper pipe.The thickness of substrate is about 1mm; The spacing range of two substrates is at 5mm.The chip of LED lamp sticks on the substrate by the chip attach material, and encapsulates by encapsulating material; Adopt the punching tapping on the substrate or adopt pre-buried screw element that screw or screw element are set, the luminous tube pin of LED lamp is fixed by screw socket and vaporization chamber substrate one.
3 one pins of the fluorescent tube of LED lamp 32 are the tubulose of port sealing, and interior the connection with refrigerant of pipe is used for the heat conduction; Another pin 33 is used for being electrically connected.It is thread segment that the fluorescent tube of LED lamp is used for heat conducting pin 41 outsides, cooperates fixedly connected with screw socket 42 or screw element on the vaporization chamber.A plurality of luminous tube pins of LED lamp are connected fixedly connected with the vaporization chamber one.
Between the chip printed board 4 of the substrate of the vaporization chamber of evaporation-cooled device and its outside LED lamp insulating heat-conduction material 5 is set also.The chip printed board of LED lamp is connected airtight encapsulation by chip attach material and insulating heat-conduction material, substrate.Insulating heat-conduction material is selected pottery for use.Chip attach material selection tin slurry.
Vaporization chamber one side is provided with the cooling medium charging mouth 11 of end cap seal, and opposite side communicates with vapor-liquid separation chamber; Filling refrigerant liquid 44 between the vaporization chamber substrate.The vaporization chamber housing is that the insulating materials of one is made, great power LED, driving power are encapsulated in the housing, its housing lower wall is transparent quartz glass, and LED lamp fluorescent tube welding ends is two substrates that be arranged in parallel, and the luminous tube pin of described LED lamp and vaporization chamber substrate welding one are fixed.
Connect by vapor-liquid separation chamber 7 between this device vaporization chamber, the condensation chamber, condensation chamber comprises refrigerant gas ascending tube 9, the refrigerant liquid down pipe 8 that is connected with vapor-liquid separation chamber; Gas ascending tube, refrigerant liquid down pipe upper end are provided with fin tube condenser 10, and the upper end of fin tube condenser offers the air discharge ports 12 of end cap seal.Refrigerant gas ascending tube is communicated with the top, upper end of vapor-liquid separation chamber, and the bottom, lower end of refrigerant liquid down pipe and vapor-liquid separation chamber is communicated with or the top, upper end of running through vapor-liquid separation chamber extends to bottom the lower end.
This fin tube condenser comprises collector tube, and refrigerant liquid down pipe upper end is communicated with collector tube; Several rectangular aluminum pipes that the collector tube upper end is welded to connect for the aluminium sheet spiral; Described refrigerant gas ascending tube goes upward to liquid collecting aluminum pipe top and is communicated with.It is rectangular aluminum pipe that a plurality of cross sections are set in the condensation chamber, the intensive snakelike thin aluminum sheet of welding between rectangular aluminum pipe, rectangular aluminum pipe bottom is connected by collector tube, refrigerant liquid down pipe is connected with described collector tube bottom, and rectangular aluminum pipe top can be provided with branch vapour aluminum pipe and be connected with refrigerant gas ascending tube; Perhaps refrigerant gas ascending tube extends described collector tube top; The inside diameter ranges of described aluminum pipe inner chamber is about 2mm.
This refrigerant gas ascending tube, refrigerant liquid down pipe are the compatible electric insulating tube of refrigerant 6, and refrigerant liquid down pipe, refrigerant gas ascending tube independently are provided with; Vapor-liquid separation chamber independently is provided with.
The heat that distributes on the power device 2 of pipe such as the high-powered LED lamp that vaporization chamber is collected and driving power, gravity circulation theory by refrigerant passes through vapor-liquid separation chamber, refrigerant gas ascending tube with heat timely and effectively, arrive condenser, heat is dispersed in the environment the most at last, because the technical advantage of evaporative cooling itself, can guarantee that the temperature in the LED pipe remains near in the ambient temperature range, guarantee that the LED lamp can rationally use in the temperature range of safety.
Select the high-powered LED lamp of thick LED pin in the present embodiment for use, tubulose is made in pin 41 inside that high-powered LED lamp fluorescent tube carriage links to each other, at this moment after LED pipe is connected by screw socket 42 with the substrate 43 of vaporization chamber or is threaded or welds, refrigerant directly imports in the LED pin of hollow, directly the heat that produces in the LED lamp fluorescent tube is taken away timely and effectively, can be broken through the limit of the peak power of existing direct insertion high-powered LED lamp like this; Improve by this encapsulation, can improve 5-10 to the power of straight cutting list lamp doubly.When such vaporization chamber is lined up a series of increasing radiating effect, vaporization chamber tube connector 45 is set at each vaporization chamber.This will continue statement in the following embodiments.
The bolt connection type high-powered LED lamp of the gravity circulation vaporization cooling apparatus of embodiment 3 band multiple-unit vaporization chambers
Fig. 4 be with vaporization chamber as a unit, a plurality of evaporation-cooled device vaporization chamber unit cell arrangement that embodiment 2 is obtained are about to the LED fluorescent tube and are fixed on the vaporization chamber, the LED lamp makes up a plurality of vaporization chambers unit 53, the mode by parallel connection is communicated with refrigerant pipe as Fig. 5.Pin of the fluorescent tube of LED lamp 51 is the tubulose of port sealing, and interior the connection with refrigerant of pipe is used for the heat conduction; Another pin 52 is used for being electrically connected.It is thread segment that the fluorescent tube of LED lamp is used for heat conducting pin 51 outsides, cooperates fixedly connected with screw socket or screw element on the vaporization chamber.A plurality of luminous tube pins of LED lamp are connected fixedly connected with the vaporization chamber one.Difference according to whether the material of vaporization chamber and middle hollow LED pin and vaporization chamber connecting portion insulate has two kinds of different LED fluorescent tube electric connecting modes.A kind of series connection back mode in parallel earlier that adopts, be applicable to when the vaporization chamber unit housings be nonmetal or connecting portion employing during for insulation, as Fig. 6; Another kind of adopt parallel connection after mode in parallel again connect, be applicable to when the vaporization chamber unit housings be the employing when being nonisulated of metal and connecting portion, as Fig. 7.As shown in the figure, specifically adopt different vaporization chambers, and can adopt the electric connecting mode of matters on demand according to actual demand.
Certainly, the inventor also studies the set-up mode of vaporization chamber and LED lamp fluorescent tube after deliberation.Also have the mode that heat-conducting substrate is contacted heat radiation with aluminium radiator large tracts of land volume in the prior art, can adopt what provide as shown in Figure 8 in the preferred technical solution of the present invention is that the LED pipe 81 that directly will have heat-conducting substrate 82 mounts setting with vaporization chamber 83.Vapour-liquid by vaporization chamber refrigerant liquid 84 changes, and vaporization chamber unit tube connector 85 can be connected with other vaporization chamber units in series and plays better cooling heat dissipation effect.Littler and the saving heat sink material that such design can not only be done volume, economical and effective.
The content that can understand according to the present invention according to those of ordinary skills, and above provide the situation explanation how the great power LED pipe that adopts different packing forms is connected with vaporization chamber, can select decision according to the demand of reality, the quality that the great power LED pipe is connected with vaporization chamber directly has influence on actual radiating effect, can be according to different separately encapsulation situations, select best mounting method, helping the rapid, efficient of heat derives.
As figure, this outdoor lighting equipment comprises support bar, and support bar 91 upper ends connect high-powered LED lamp; Gravity circulation vaporization cooling apparatus condensation chamber 93 upper ends of high-powered LED lamp are provided with cover plate 92; The evaporation-cooled device vaporization chamber of LED lamp and vapor-liquid separation chamber's one 94 are provided with.Condensation chamber is linked up with vaporization chamber and vapor-liquid separation chamber's one by gas ascending tube and liquid down pipe 95.
Based on this, contour structures and transitional street lamps structure basically identical, as Fig. 9, total specifically can change the profile of whole LED lamp according to the position that actual needs will change condenser, can make an integrally-built light fixture at vaporization chamber, condenser as rainproof.
By transpiration-cooled method, adopt gravity circulation theory advantages of simplicity and high efficiency that the heat of various great power LED pipes and the generation of converter heater element is derived heat rapidly by evaporimeter, make various great power LED pipes and converter heater element be kept closer to the level of environment temperature, generally can remain in 50 ℃, effectively avoid causing the heating of LED lamp, increase the service life.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All spirit essence is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (10)
1. the gravity circulation vaporization cooling apparatus of a high-powered LED lamp is characterized in that described evaporation-cooled device comprises vaporization chamber with heat-conducting substrate and the condensation chamber that is positioned at the vaporization chamber upper end; The vaporization chamber of described evaporation-cooled device partly is provided with the LED lamp, the luminous tube pin of described LED lamp by fixedlying connected with the heat-conducting substrate one of vaporization chamber with vaporization chamber in cooling medium liquid body heat conduction.
2, the gravity circulation vaporization cooling apparatus of high-powered LED lamp according to claim 1, the vaporization chamber that it is characterized in that described device comprises two heat-conducting substrates that connected by the thermal conductive metal pipe rivet welding, filling refrigerant liquid between substrate, the luminous tube pin of described LED lamp is fixing by the heat-conducting substrate one welding of thermal conductive metal pipe and vaporization chamber.
3, the gravity circulation vaporization cooling apparatus of high-powered LED lamp according to claim 2 is characterized in that described heat-conducting substrate is selected from pottery, Cu/Mo alloy heat sink, Cu/W alloy heat sink, aluminium sheet or copper coin; The chip of described LED lamp sticks on the substrate by the chip attach material, and encapsulates by encapsulating material; Described thermal conductive metal pipe is selected from copper pipe, aluminum pipe.
4, the gravity circulation vaporization cooling apparatus of high-powered LED lamp according to claim 1, the vaporization chamber that it is characterized in that described device comprises the refrigerant liquid by filling between two substrates and two substrates, on the substrate of fixedly connected LED lamp fluorescent tube screw or screw element are set, the luminous tube pin of described LED lamp is fixed by screw socket and vaporization chamber substrate one.
5, the gravity circulation vaporization cooling apparatus of high-powered LED lamp according to claim 4, the luminous tube pin that it is characterized in that described LED lamp is the tubulose of port sealing, is communicated with refrigerant in the pin pipe; The luminous tube pin of the described LED lamp outside or inboard are thread segment, cooperate fixedly connected with screw socket or screw element on the vaporization chamber substrate.
6,, it is characterized in that a plurality of luminous tube pins of described LED lamp connect fixedly connected with vaporization chamber substrate one according to the gravity circulation vaporization cooling apparatus of claim 2 or 4 described high-powered LED lamps.
7, the gravity circulation vaporization cooling apparatus of high-powered LED lamp according to claim 1, it is characterized in that connecting by vapor-liquid separation chamber between described device vaporization chamber, the condensation chamber, described condensation chamber comprises refrigerant gas ascending tube, the refrigerant liquid down pipe that is connected with vapor-liquid separation chamber; Described refrigerant liquid down pipe upper end is communicated with collector tube; Several rectangular aluminum pipes that the collector tube upper end is welded to connect for the aluminium sheet spiral; Described refrigerant gas ascending tube goes upward to liquid collecting aluminum pipe top or is communicated with the branch vapour aluminum pipe of rectangular aluminum pipe top setting.
8, the gravity circulation vaporization cooling apparatus of high-powered LED lamp according to claim 7, it is characterized in that described refrigerant gas ascending tube, refrigerant liquid down pipe are the compatible electric insulating tube of refrigerant, refrigerant liquid down pipe, refrigerant gas ascending tube independently are provided with or coaxial setting; Described vapor-liquid separation chamber independently be provided with or with vaporization chamber, condensation chamber or one of be wholely set.
9, a kind of high-powered LED lamp that comprises the described evaporation-cooled device of claim 1 is characterized in that this LED lamp also comprises driving power, and the power device of described driving power mounts the vaporization chamber heat-conducting substrate outside that is arranged on evaporation-cooled device.
10, a kind of outdoor lighting equipment comprises support bar, it is characterized in that post upper connects the described high-powered LED lamp of claim 9; The gravity circulation vaporization cooling apparatus condensation chamber upper end of described high-powered LED lamp is provided with cover plate; The evaporation-cooled device vaporization chamber and the vapor-liquid separation chamber of described LED lamp are wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101148927A CN101476709A (en) | 2009-01-21 | 2009-01-21 | Gravity circulation vaporization cooling apparatus of high-power LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101148927A CN101476709A (en) | 2009-01-21 | 2009-01-21 | Gravity circulation vaporization cooling apparatus of high-power LED lamp |
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| CN101476709A true CN101476709A (en) | 2009-07-08 |
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| CNA2009101148927A Pending CN101476709A (en) | 2009-01-21 | 2009-01-21 | Gravity circulation vaporization cooling apparatus of high-power LED lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148469A (en) * | 2013-02-27 | 2013-06-12 | 深圳市日上光电股份有限公司 | High-power LED light-transmitting and heat-conducting device |
| CN104180316A (en) * | 2013-05-24 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | High-power lamp |
-
2009
- 2009-01-21 CN CNA2009101148927A patent/CN101476709A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148469A (en) * | 2013-02-27 | 2013-06-12 | 深圳市日上光电股份有限公司 | High-power LED light-transmitting and heat-conducting device |
| CN104180316A (en) * | 2013-05-24 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | High-power lamp |
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Open date: 20090708 |