CN203940390U - The cold junction heat pipe LED light fixture that directly dispels the heat - Google Patents

Abstract

The cold junction heat pipe LED light fixture that directly dispels the heat, comprise heat pipe, LED, driving power, with extraneous electrical connection interface and control system, it it is characterized in that the hot end surface of heat pipe, and the non-light-emitting area of LED matches and the non-light-emitting area of LED is connected with heat pipe hot junction direct heat transfer.The utility model cold junction directly dispels the heat, and its heat pipe hot junction of heat pipe LED light fixture is direct conducts heat and is connected with LED, in the situation that directly dispelling the heat with heat pipe cold junction, the shortest heat transfer glue or elastic conducting hotting mask and the heat pipe only comprising between LED and heat pipe of its heat transfer path from LED to environment.By make the pleated area of dissipation that can increase considerably at heat pipe cold junction, meet the requirement to radiator heat-dissipation area.

Description

The cold junction heat pipe LED light fixture that directly dispels the heat

Technical field

The utility model relates to the cold junction heat pipe LED light fixture that directly dispels the heat.LED is that the English of lasing fluorescence diode is called for short, and can be regarded as the generally acknowledged technical term of the art.

Background technology

Adopt the LED light fixture of gravity assisted heat pipe, its general configuration should be conducted heat and connect several LED for the hot junction below heat pipe.The Main Function that heat pipe here rises should be to realize heat flow density conversion and heat radiation.Relevant heat flow density is transformed to roughly and is transformed to approximately 0.06 watt/square centimeter from approximately 0.5 watt/square centimeter.

Investigate existing LED light fixture, for the wide LED for 5*7 millimeter, 0.6 watt of general power, light efficiency 21% of one of them long * and the energy except luminous, all by surface conductive entered environment, LED all surfaces are long-pending, get 1 centimetre of 2(0.5*0.7*2+0.1.25*(7+5+7+5)), its heat flow density of loading of dispelling the heat is 0.6*(1-0.21) 474 watts/centimetre 2 of/1=0..If do not adopt radiator, the surface temperature of LED can be over 100 ℃.

Again, for a heat radiation load, be the LED with radiator of 10 watts, in the flat cubic centimetre of area of dissipation 200 of its spreader surface, its heat radiation power density is 0. 05 watts/centimetre 2.Reference in contrast: the expose to the sun peak strength of penetrating of sunshine is about 1 Qian Wa/㎡ and closes 0.1 watt/centimetre 2.25 watts of incandescent light bulb that surface area is 170 centimetre 2, because glass cell-shell stops and absorption ultrared, obviously rise the temperature on glass cell-shell surface.Here, get 10 watts of heat radiation powers by glass cell-shell, its heat radiation power density of conducting by glass cell-shell is 0.0588 watt/centimetre 2 of 10/170 ≈.

The computing formula of object heat radiation power and heat-delivery surface temperature rise is:

Q=K*ΔT*S…………?

In formula 1, Q is heat radiation power, and dimension is watt; K is the heat transfer coefficient from heat pipe cold end surfaces to air, and dimension is watt/(℃ * ㎡); Δ T is the intensification that air is heated, dimension be K or ℃; S is the area of the heat pipe cold junction that contacts with air, and dimension is square metre.

By Q=10, K=23 watt/(℃ * ㎡), S=0.02 ㎡ substitution; 21.74 ℃ of the temperature rise Δ T ≈ of described heat dissipation model.When S=0.017 ㎡, obtain 25.58 ℃ of temperature rise Δ T ≈.Here all heat radiation load all with almost average temperature by with air heat-exchange entered environment.In fact, the numerical value of Coefficient K also comprises that with surface state clean conditions is relevant with emissivity.

For LED light fixture, its heat radiation approach from LED to air is complicated more than incandescent lamp.The temperature rise value of 30 ℃ of the relative environment temperatures in LED lamp radiator surface is got to 21.74 ℃, and the temperature of getting Heat Conduction Material between LED and heat pipe hot junction fall 2 ℃, the temperature of heat pipe hot junction tube wall fall 2 ℃, from heat pipe hot junction to the temperature of cold junction two phase flow heat transfer, fall ignore, the temperature of heat pipe cold junction tube wall falls 1 ℃, the surface temperature of known described LED will reach 30+21.74+1+2+2=56.74 ℃.In view of the surface temperature of LED changes with environment temperature and itself heat flow density.When the peak of set environment temperature is that 30 ℃, heat transfer coefficient are set as 23 and the maximum temperature of LED while being 64 ℃, the heat pipe cold end area that every watt of heat radiation power needs is at least 15 square centimeters; Corresponding heat flow density is 0.0667 watt/centimetre 2.Under this operating mode, the LED10 light decay of ten thousand hours is expected lower than 20%; And existing minority LED light fixture inferior only one summer light decay will reach more than 50%.

Chinese patent 2008200495178 discloses a kind of high power hot pipe LED illuminating apparatus, include LED, pedestal, heat pipe, and be provided with heat abstractor, one side of pedestal is provided with one or more than one LED, and one end of heat pipe is that hot junction is connected with described pedestal, the other end is that cold junction is connected with described heat abstractor.Directly welding or fill heat-conducting silicone grease and without heat transfer medium in the middle of other, thermal resistance is relatively little between heat pipe and pedestal, heat transfer efficiency is high.Have simple in structure, good heat dissipation effect, the feature of reliable operation.But it adopts pedestal heat transfer connection LED that electric insulation layer need to be set and realizes electrical isolation; It is at metal heat pipe cold junction configuration radiating fin plate as the heat exchange interface with air, and owing to also having temperature to fall between heat pipe cold junction and radiating fin plate, and the surface temperature of radiating fin plate is inhomogeneous, thus increased dispel the heat link and with the heat exchange thermal resistance of air; Fin produces cost and is not easy to clean; Between metal heat pipe hot junction and LED, needing withstand voltage higher insulating barrier, itself there is thermal resistance in insulating barrier.LED surface is because of large, the same thermal resistance of heat flow density, and temperature is fallen can be many greatly.Because LED is to responsive to temperature, temperature surpasses 65 ℃ of LED can very fast decline.Therefore, cut down heat transfer link and the thermal resistance of the link that reduces to conduct heat just significant.

Summary of the invention

The purpose of this utility model is that the cold junction heat pipe LED light fixture that directly dispels the heat will be provided.

The utility model is realized the technical scheme of its object: manufacture the cold junction heat pipe LED light fixture that directly dispels the heat, comprise heat pipe, LED, driving power and with extraneous electrical connection interface.Between heat pipe and LED, contain or do not contain heat transfer substrate.Heat pipe comprises shell, blast pipe, working medium and liquid-sucking core net.Heat pipe cold junction with or without pleated.Comprise two core electric wires or bulb screw mouth connector with extraneous electrical connection interface.When described LED color or colour temperature are while being constant, a plurality of LED that form described color or colour temperature comprise that three-primary color LED can only realize with one group of two wire and extraneous electrical connection with extraneous; When described LED color or colour temperature are while being adjustable, a plurality of LED that form described color or colour temperature comprise that three-primary color LED adopts respectively one group of two wire to realize and extraneous electrical connection with extraneous separately.Heat pipe package each several part is seamless to be melted to be sealed and connects as one; The hot end surface of heat pipe matches with the non-light-emitting area of LED and the non-light-emitting area of LED is connected with heat pipe hot junction direct heat transfer; Heat pipe cold junction is without wing plate.

Can also make outside, heat pipe hot junction contain LED circuit plate.The outer surface in the inner surface of LED circuit plate and heat pipe hot junction matches.LED circuit plate comprises insulated substrate and is made in conducting wire, LED linkage interface, circuit board enhancement Layer and the mesh on insulated substrate.LED linkage interface comprises soldering interface.LED linkage interface is used for connecting LED; Between LED linkage interface and heat pipe, adopt Design on thermal insulation.Enhancement Layer comprises stephanoporate steel plate or the elasticity web plate that is embedded in insulated substrate inside.Adopt enhancement Layer can significantly strengthen rigidity and the stability of LED circuit plate.Suitable mesh can reduce for being enclosed with of heat pipe and is beneficial to heat radiation.Between LED circuit plate and driving power, by several wire cable, realize both connections, described both connection comprises that mechanical connection, electrical connection and the binding of opposite heat tube are simultaneously connected.Described both connection comprises by the cable linkage interface of LED circuit plate or driving power periphery and realizing; Cable linkage interface comprises that cable is wound around stub.Conventionally, cable is fixed on heat pipe by binding material bonding, and cable can also adopt fillet metal forming to reduce the projection on phase opposite heat tube surface sometimes.Or, the structure that makes described driving power adopt driving power main body to be connected with a driving power base.Driving power main body configuration contact chip, driving power base configuration cable buckling groove.After driving power main body and driving power base are connected, described contact chip and described cable buckling groove are realized electrical connection.And adopt with cable joint end and serial connection/and be connected to the fast wiring cable of elastic component.Described serial connection refers to that described elastic component is connected in series with cable and described elastic component flows through the electric current identical with described cable; Described and connect and refer to the two ends of described elastic component and the cable of a segment length affluence is connected and described connector current flowing or flow through less electric current not.Fast wiring cable has sufficiently high tensile strength; Elastic component comprises one section of spring.Make described cable joint end be connected with the clamping of described cable buckling groove.Comprise being connected between LED circuit plate and fast wiring cable and being welded to connect or fast-assembling connects.Fast-assembling connects and comprises that above-mentioned clamping connects.

Can also make LED circuit plate contain some LED hole, the edge in LED hole contains two places above and LED linkage interface; LED is arranged in described LED hole and with Heat Conduction Material and comprises that elastic conducting hotting mask conducts heat and is connected with heat pipe hot junction with transparent heat conduction binding material.

Can also make the LED linkage interface on LED circuit plate is stainless sheet steel on a wiring board being arranged on wiring board; The stainless sheet steel stitch welding plain film with corrugated changeover portion is contained respectively at LED two ends; Two stainless sheet steels are the position that is welded to connect that on wiring board, stainless sheet steel and stitch welding plain film are superimposed with each other and contain laser stitch welding.

Can also make LED circuit plate comprise flexible PCB.

And order and heat pipe hot junction pass hot linked LED surface and contain shape and the identical elastic conducting hotting mask of heat pipe hot end surface; Heat pipe contains the linkage interface with LED circuit plate and driving power or driving power base, and linkage interface comprises the interface that is threaded with LED circuit plate and driving power or driving power base; Linkage interface also comprises that the positioning step of an above outwardly convex and LED circuit plate and driving power or driving power susceptor surface contain respectively the linkage interface matching with described positioning step surface; Or,

Adopt some laminating fin or laminating groups of fins of conducting heat and being connected with heat pipe cold junction; Order passes hot linked LED surface with heat pipe hot junction, and described laminating fin or laminating groups of fins and surface, heat pipe contact position are contained heat-conducting glue or contained shape and elastic conducting hotting mask that heat pipe hot end surface is identical; Heat pipe contains the linkage interface with LED circuit plate and driving power or driving power base, and linkage interface comprises the interface that is threaded with LED circuit plate and driving power or driving power base; Linkage interface also comprises that the positioning step of an above outwardly convex and LED circuit plate and driving power or driving power susceptor surface contain respectively the linkage interface matching with described positioning step surface.

Can also make LED wiring board contain one end band hitch and not be connected in series the fast wiring cable of elastic component; Driving power base contains a carbine with retractility; Described fast wiring cable and the socket of described carbine realize and electric and mechanical connection between the two; Or LED wiring board contains one end band hitch and is not connected in series the fast wiring cable of elastic component; Driving power base contains a diving board hook with flexibility; Described fast wiring cable and described diving board rhampotheca connect the electric and mechanical connection of realizing with between the two.

Can also make LED two ends respectively contain a heat pipe package jump ring part, jump ring part comprises two reeds, and the free end of each reed respectively contains an above contact pin.Jump ring part conducts heat and is connected with heat pipe hot junction; Contact pin can insert a Plug pin patch bay and realize electrical connection between the two.

The utility model cold junction heat pipe LED light fixture that directly dispels the heat can also comprise an even mating plate; An even mating plate magnetic linkage interface is respectively contained in the hot junction of heat pipe or hot junction boundary and even mating plate inner side; The material of described magnetic linkage interface comprises: paramagnetic material+permanent-magnet material or permanent-magnet material+permanent-magnet material; Described two even mating plate magnetic linkage interface magnetic connect.

Can also adopt an above heat pipe, comprise heat pipe with an above cold junction, with the U-shaped tubular heat tube of two cold junctions, comprise two main cold junctions of U-shaped tubulose and in many cool side heat pipes of main cold junction Shang Pangjie branch cold junction with main cold junction; Described each cold junction comprise pull out straight upwards, helical buckling upwards and the cold junction that makes progress of serpentine bend; All LED are arranged in each heat pipe hot junction according to heat radiation load sharing.

Can also make heat pipe cold junction not contain special-purpose fin; Or heat pipe cold junction has bigger serface surface and comprises pleated.

The beneficial effects of the utility model: the utility model cold junction its heat pipe cold junction of heat pipe LED light fixture that directly dispels the heat directly dispels the heat, the shortest heat transfer glue or elastic insulated heat conducting film and the heat pipe only comprising between LED and heat pipe of its heat transfer path from LED to environment.Actual effect is: at heat-pipe radiator or even radiator cost, on average reduce under 50 to 70% prerequisites, the service life of light decay 20% extending to more than 7 years for average 2 to 3 years from existing heat-pipe radiator or cast aluminium radiator product.The non-ferrous metal that cast aluminium radiator relates to is cast into major source of pollutant; And the carrying capacity of environment of heat pipe processing is insignificant, environmental benefit is obvious.The heat pipe cold junction with bigger serface is included in heat pipe cold junction and makes and pleatedly can increase considerably operating temperature and the cost that area of dissipation further reduces LED and increase few.

The utility model cold junction heat pipe LED light fixture that directly dispels the heat does not adopt fin only to rely on heat pipe cold junction heat radiation to compare and have advantages of surperficial easy cleaning with the heat pipe LED light fixture that adopts fin.In thermotube wall Tu photocatalyst of titanium dioxide coating processed, the organic matter dirt that can utilize the light last decomposition of light fixture to contact with described coating of titanium dioxide, plays the effect of automated cleaning.

Heat pipe LED light fixture adopts fast wiring cable to form dismountable type structure and is convenient for changing the heat pipe that different shaping comprises the moulding of imitation animals and plants, increases amusement temperament and interest.Flowing or some new contents being set of high transparent heat pipe inner utilization steam can obtain some brand-new experience.

LED circuit plate is connected with the heat transfer of heat pipe and LED and extraneous electrical connection provide an integrated platform for LED.

LED hole is set on LED circuit plate LED can be directly connected with adopting heat pipes for heat transfer, contribute to realize heat transfer resistance and minimize.Adopt laser weld LED firm welding, can realize at normal temperatures, the thermal shock of welding process opposite heat tube tube wall is little.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is a heat pipe LED fitting structure schematic diagram that adopts single heat pipe.

Fig. 2 is the LED circuit plate structure schematic diagram of a heat pipe LED light fixture, is the front of Fig. 1 LED circuit plate is described.

Fig. 3 is a heat pipe structure schematic diagram with round table-like cold junction, is the special description to Fig. 1 heat pipe.

Fig. 4 is the structural representation of facing that a heat pipe LED light fixture adopts laser stitch welding LED stitch welding plain film.

Fig. 5 is the upper TV structure schematic diagram that a heat pipe LED light fixture adopts laser stitch welding LED stitch welding plain film.

Fig. 6 is that a heat pipe is with the heat pipe LED fitting structure schematic diagram with driving power base and LED circuit plate linkage interface.

Fig. 7 is the special description to heat pipe in Fig. 6.

Fig. 8 is a structural representation that fast wiring cable is connected with carbine.

Fig. 9 is a structural representation that fast wiring cable is connected with diving board hook.

Figure 10 is that jump ring part and the heat pipe plug-in of a LED conducts heat and be connected and face structural representation with Plug pin patch bay is electrically connected.

Figure 11 is the side-looking structural representation that jump ring part and the heat pipe plug-in of a LED conducts heat and be connected and be electrically connected with Plug pin patch bay.

Figure 12 is the structural representation of the light fixture of cool side heat pipes LED more than.

Figure 13 be one with the make progress heat pipe expanded view of U-shaped distortion tubulose heat pipe LED light fixture of cold junction of two serpentine bends.

Figure 14 be one with the make progress plan structure schematic diagram of U-shaped distortion tubulose heat pipe LED light fixture of cold junction of two serpentine bends.

Figure 15 is a heat pipe expanded view that is tilted to the U-shaped distortion tubulose heat pipe LED light fixture of upper cold junction with two equal angles.

Figure 16 is a plan structure schematic diagram that is tilted to the U-shaped distortion tubulose heat pipe LED light fixture of upper cold junction with two equal angles.

Figure 17 and 18 is respectively the plan structure schematic diagram of a sleeve type heat-pipe LED light fixture and faces sectional structure schematic diagram.

Figure 19 is the structural representation of a heat pipe LED shot-light.

Figure 20 is the structural representation of a LED wall lamp.

Figure 21 is the structural representation of the imitative crystal pendant lamp array of a LED.

Figure 22 is the composite construction schematic diagram of a LED lamp affixed to the ceiling, and top is top view; Bottom is front view.

Figure 23 is the side-looking structural representation of heat pipe LED traffic lights.

Figure 24 is the backsight structural representation of heat pipe LED traffic lights.

Figure 25 is the structural representation of a upper half paraboloid rotary body chuck heat pipe LED light fixture.

Figure 26 is the structural representation of a back-off parabola rotary body heat pipe LED light fixture.

Figure 27 is the structural representation of facing of a Platelike heat pipe LED light fixture.

1. heat pipes in figure; 2.LED; 3. driving power base; 4. driving power main body; 5. with extraneous electrical connection interface; 6. even mating plate; 7. blast pipe; 11.LED circuit board; 12. conducting wires; 14. cable buckling grooves; 15.LED linkage interface; 16. cable joint ends; 17. elastic components; 18. fast wiring cables; 19.LED hole; 20. contact chips; 21. magnetic couplings; 22. conductive bonding materials; 23. corrugated changeover portions; 24. stitch welding plain films; 26,27. positioning steps; 28,29. interfaces that are connected; 30. laminating fin; 31. steel wire hairsprings; 32. carbines; 33. diving board hooks; 34. jump ring parts; 35. contact pins; 36. Plug pin patch bay; 38. hot junctions; 39. main cold junctions; 40. cold junctions; 41. clips; 42. driving powers; 43. is pleated; 44. condensers; 45. housings; 46. guide rail bases; 47. joint faces; 49. chutes; Half paraboloid rotary body chuck on 50.; 51. times half paraboloid rotary bodies; 52. parabola rotary body chucks; 53. liquid-sucking core nets; 54. support members; 55. foaming materials.

The specific embodiment

Fig. 1 to 3 provides first embodiment of the utility model jointly.

In Fig. 1 to 3, heat pipe LED light fixture comprise heat pipe 1, LED2, driving power base 3, driving power main body 4, with extraneous electrical connection interface 5, even mating plate 6 and control system 13.Heat pipe 1 comprises shell, blast pipe 7 and working medium.Can also liquid-sucking core net be set in heat pipe 1 inside as required.Working medium comprises water and ethanol.As frozen in fruit product use occasion and storage and transport process, can select ethanol as working medium.Adopt bulb screw mouth and the electric wire that can use screw lamp holder with extraneous electrical connection interface 5.Heat pipe 1 shell each several part is seamless to be melted to be sealed and connects as one.The hot end surface of heat pipe 1 and the surface of LED2 match.Heat pipe 1 cold junction is without pleated and do not adopt fin.LED2 conducts heat and is connected with heat pipe 1 hot junction.In Fig. 1 to 3, arrow inwards represents heat pipe hot junction side by side, and heat pipe hot junction absorbs heat energy; Outside arrow represents heat pipe cold junction side by side, heat pipe cold junction releasing heat energy.

LED circuit plate 11 is contained in heat pipe 1 outside, hot junction.LED circuit plate 11 comprises insulated substrate and is made in conducting wire 12, cable buckling groove 14, LED linkage interface 15 and the enhancement Layer on insulated substrate.Enhancement Layer adopts stephanoporate steel plate to be embedded in insulated substrate inside.Stephanoporate steel plate enhancement Layer is lightweight, intensity is guaranteed, its hollow sectors does not affect conductor and passes through LED circuit plate 11.At least two above conducting wire 12, places are not directly electrical connection each other.The outer surface in the inner surface of LED circuit plate 11 and heat pipe 1 hot junction matches.The periphery of LED circuit plate 11 and driving power base 3 contains many places cable buckling groove 14.The fast wiring cable 18 of some two ends band cable joint ends 16 and middle serial connection elastic component 17, by 16 clampings of its cable joint end connect cable buckling groove 14 on LED circuit plates 11 and driving power base 3 realize electrical connection between LED circuit plate 11 and driving power base 3 and, LED circuit plate 11, driving power base 3 and heat pipe 1 three's mechanical connection.LED linkage interface 15 for and LED2 between electrical connection comprise and being welded to connect.Fast wiring cable 18 can comprise that transparent sticky paper bonding is fixed on heat pipe 1 with binding material.

LED circuit plate 11 contains some LED hole 19, the interior placement in LED hole 19 LED2.The edge in each LED hole 19 contains two LED of place linkage interfaces 15.Between LED linkage interface 15 and heat pipe 1, adopt Design on thermal insulation.LED2 is arranged in LED hole 19 and by elastic conducting hotting mask or heat conduction binding material and conducts heat and be connected with heat pipe 1 hot junction.

Driving power main body 4 is connected with driving power base 3 and comprises and being threaded.After driving power main body 4 is connected with driving power base 3, driving power main body 4 is electrically connected by contact chip 20 and the cable buckling groove 14 on driving power base 3; Thereby connect, light LED2.

Even mating plate 6 is by being arranged at permanent magnetism magnetic coupling 21 on even mating plate 6 and being arranged at the mutual magnetic of permanent magnetism magnetic coupling 21 on heat pipe 1 and realizing and being connected of heat pipe 1.Described setting comprises the pre-buried of moulding and bonding.

LED linkage interface 15 in embodiment 1 can also be with reference to the embodiment 2 of figure 4 and Fig. 5.

Fig. 4 and Fig. 5 provide second embodiment of the utility model jointly.

In Fig. 4 and Fig. 5, in heat pipe 1 hot junction, post a LED circuit plate 11.On LED circuit plate 11, be provided with conducting wire 12 and cable buckling groove 14,14 clampings of cable buckling groove connect the cable joint end 16 of fast wiring cable 18.On LED circuit plate 11, be also provided with LED hole 19 for settling LED2.

Be made in stainless sheet steel on the wiring board that LED linkage interface on LED circuit plate 11 15 adopts 0.4 millimeter of thickness.Between LED linkage interface 15 and glass heat pipe 1, adopt Design on thermal insulation to alleviate the thermal shock of glass heat pipe 1 and heat transfer.On the contact-making surface of LED2 and glass heat pipe 1, Tu is shaped with heat conduction binding material 22.LED2 two ends are stacked up and down by stainless sheet steel on the stitch welding plain film 24 with corrugated changeover portion 23 and LED linkage interface 15 wiring boards respectively.The corrosion resistant plate that is stacked that two thickness is 0.4 millimeter adopts laser to carry out stitch welding.On stitch welding plain film 24 and linkage interface 15 wiring boards, the gauge of stainless sheet steel can regulate.On LED linkage interface 15 wiring boards, stainless sheet steel will experience laser weld, so the embedding enhancement Layer of LED circuit plate 11 of its below should retain steel plate.

Adopt 3 stitch welding on the stitch welding plain film 24 of describing in multiple spot stitch welding such as Fig. 5 can increase the reliability being welded to connect.Employing can slow down negative effect that harmful stress that may exist between LED2 and LED circuit plate 11 produces, can slow down unfavorable mechanicals efforts, thermal shock and heat transfer to glass heat pipe 1 with the stitch welding plain film 24 of corrugated changeover portion 23.

Fig. 6 and Fig. 7 provide the 3rd embodiment of the utility model.

In Fig. 6 and 7, heat pipe LED light fixture comprise heat pipe 1, LED2, driving power base 3, driving power main body 4 and with extraneous electrical connection interface 5.LED circuit plate 11 is contained in heat pipe 1 outside, hot junction.Be installed on the surface that the LED2 on LED circuit plate 11 contacts with heat pipe 1 and contain elastic conducting hotting mask.The object that elastic conducting hotting mask is set is for through repeatedly more still keeping heat-transfer behavior good between heat pipe 1 and LED after heat exchanger tube 1.The positioning step 26 and 27 that heat pipe 1 contains more than one outwardly convex at the position contacting with LED circuit plate 11 with driving power base 3 is as linkage interface.Positioning step 26 and 27 shape can be circular or other shapes.Driving power base 3 and LED circuit plate 11 contain respectively the interface 28,29 that is connected with heat pipe 1 positioning step 26 and 27.Positioning step 26 and 27 can also be deformed into the interface 28,29 that is connected the interface that is threaded cooperatively interacting.The periphery of driving power base 3 adopts many places cable buckling groove 14.Some with LED circuit plate 11 electrical connection, with cable joint end 16 and be connected in series the fast wiring cable 18 of elastic component 17, by its cable joint end 16 clampings, connect the cable buckling groove 14 on driving power base 3, realize driving power base 3, LED circuit plate 11 and heat pipe 1 three's connection and the electrical connection between driving power base 3 and LED circuit plate.

Adopt the cable clamping of Fig. 6 and Fig. 7 embodiment to connect soon mode, can facilitate the free-hand more heat exchanger tube 1 of junior school student.The structure that adopts driving power base 3 to be connected with driving power main body 4 also can be used for the upgrading of LED light fixture, as long as change driving power main body 4, just can realize the software and hardware upgrade to LED light fixture.Can higher LED, LED circuit plate and the heat pipe of reserve value during the upgrading of LED light fixture.

In Fig. 6 and Fig. 7 embodiment, can also stick on laminating fin 30 or laminating groups of fins and bind round and fixed with steel wire hairspring 31 at the cold junction outer surface of heat pipe 1.Laminating fin 30 contains heat-conducting glue or is provided with elastic conducting hotting mask with the contact position of heat pipe 1.

Fig. 8 provides the 4th embodiment of the utility model.

In Fig. 8, when the fast wiring cable 18 of one end band hitch is connected with driving power footing foundation at one and the carbine 32 with retractility is left behind, cover is buckled in the electric and mechanical connection of realizing on carbine 32 with carbine 32.Here, fast wiring cable 18 omits the elastic component 17 using in embodiment 3.

Fig. 9 provides the 5th embodiment of the utility model.

In Fig. 9, when the fast wiring cable 18 of one end band hitch is connected with driving power footing foundation at one and the diving board hook 33 with retractility is left behind, cover is buckled in the electric and mechanical connection of realizing on diving board hook 33 with diving board hook 33.Here, fast wiring cable 18 omits the elastic component 17 using in embodiment 3.

Fig. 8 and Fig. 9 embodiment facilitate fast-assembling, maintenance, upgrading and the pattern variation of the utility model heat pipe LED light fixture.

Figure 10 and Figure 11 provide the 6th embodiment of the utility model jointly.

In Figure 10 and Figure 11, a heat pipe package jump ring part 34 is respectively contained at LED2 two ends, and jump ring part 34 contains two reeds, and the free end of each reed respectively contains contact pin 35.Jump ring part 34 conducts heat and is connected with heat pipe 1 hot junction.For improving heat transfer efficiency, the upper surface contacting with heat pipe of LED2 can be guided hot adhesion material or elastic conducting hotting mask is set by Tu.Contact pin 35 can insert the electrical connection of 36 realizations of a Plug pin patch bay coordinating with it and Plug pin patch bay 36.

The advantage of jump ring part 34 comprises simplification or has omitted LED circuit plate.Figure 10 and Figure 11 embodiment are also applicable to the LED light fixture of strip, the LED2 needing only at a long heat pipe hot junction equal strap jump ring part 34 in this case.

Figure 12 provides the 7th embodiment of the utility model.

In Figure 12, heat pipe LED light fixture comprise heat pipe 1, LED2 and with extraneous electrical connection interface 5.The hot junction 38 of heat pipe 1 is in the form of annular discs, in hot junction 38 upper surface perforates and with main cold junction 39 melt envelope be connected.The other some branches cold junction 40 that connects of main cold junction 39, the heat pipe 1 of formation cold junction more than.Periphery in heat pipe 1 hot junction 38 is connected and fixed LED circuit plate 11 with several clips 41.Be arranged at main cold junction 39 tops with extraneous electrical connection interface 5 bulb screw mouths.The blast pipe of heat pipe 1 is arranged at main cold junction 39 upper port places.

Many cool side heat pipes of Figure 12 embodiment LED light fixture can be got less volume in the certain cold junction area situation of maintenance.Because the tube that diameter is 150 millimeters is identical with its cylindrical portion external surface area of contour tube of 30 millimeters of 5 diameters, but both volumes can differ manyfold.

Figure 13 and Figure 14 provide the 8th embodiment of the utility model jointly.

In Figure 13 and Figure 14, with the hot junction 38 of the U-shaped distortion tubular heat tube 1 of the cold junction 40 of two serpentine bend sections, conduct heat and be connected with LED2.The heat pipe cold junction 40 of nexine is narrower to be represented with light color.Outer field heat pipe cold junction 40 is wider to be represented by dark color.Can conduct heat and connect an above LED2 in each hot junction 38.All LED2 are arranged in heat pipe 1 hot junction 38 according to heat radiation load sharing.Blast pipe can be arranged at the upper port place of nexine or outer arbitrary cold junction.

The U-shaped distortion tubular heat tube 1 of 4 cold junctions 40 with two serpentine bend sections in Figure 13 is arranged symmetrically with and forms a cylindrical body, the U-shaped distortion tubular heat tube 1 that is each cold junction 40 with two serpentine bend sections respectively occupies the about quadrant round angle of described cylindrical body, and this can see more intuitively in Figure 14 plan structure schematic diagram.

Equally, can also make the U-shaped distortion tubular heat tube 1 of the cold junction 40 with two serpentine bend sections in Figure 13 and Figure 14 embodiment respectively occupy described cylindrical body approximately 1/2nd or 1/3rd or 1/5th or sixth angle of circumference.

The LED light fixture of the cold junction 40 that employing serpentine bend makes progress it highly can only have employing to pull out 30% of straight upwards cold junction.

The heat pipe LED light fixture of Figure 13 and Figure 14 embodiment also can only be used single heat pipe 1 and its hot junction 38 is extended to and approaches a circle, arranges a plurality of LED2 on heat pipe hot junction 38.

Figure 15 and Figure 16 provide the 9th embodiment of the utility model jointly.

In Figure 15 and Figure 16, conduct heat and be connected with LED2 in the hot junction 38 of stretching the U-shaped distortion tubular heat tube 1 of cold junction 40 upwards with two equal angles.The heat pipe cold junction 40 use light color of nexine represent.Outer field heat pipe cold junction 40 use dark colors represent.Can conduct heat and connect an above LED2 in each hot junction 38.All LED2 are arranged in heat pipe 1 hot junction 38 according to heat radiation load sharing.Adopt equal angles be tilted to cold junction 40 LED light fixture its highly can only have to adopt and pull out 30% of straight upwards cold junction.

The number of the U-shaped distortion tubular heat tube 1 of Figure 15 and the cold junction 40 with two serpentine bend sections in Figure 16 embodiment can also be expanded as a plurality of and make it according to himself mutually nested layout in the even interval of cylindrical body, respectively occupy described self cylindrical body approximately 1/2nd or 1/3rd or 1/4th or 1/5th angle of circumference.

Figure 13,14 and the heat pipe LED light fixture of Figure 15,16 liang of embodiment be applicable to making LED shadowless lamp.Shadowless lamp needs constantly its spatiality of conversion.Even if adopt a plurality of U-shaped distortion tubular heat tubes to show up when making positive and negative 29 degree and tilting at Astral lamp light, still can guarantee that the working medium of its cold junction normally refluxes.Adopt the applicable production in enormous quantities of crooked pipe manufacture heat pipe and yield rate high.Part heat pipe or LED damage complete machine endure.

The heat pipe LED light fixture of Figure 15 and 16 embodiment can also elongate its heat pipe hot junction 38 to approaching a circle and arrange a plurality of LED2 on hot junction 38.

Figure 17 and 18 provides the of the present utility model ten embodiment jointly.

In Figure 17 and 18, heat pipe LED light fixture comprise heat pipe 1, LED2, driving power 42 and with extraneous electrical connection interface 5.LED circuit plate 11 is contained in heat pipe 1 outside, hot junction.Heat pipe 1, for logical jacket structured in two, contributes to hollow space hot-air to accelerate to rise and strengthens cold end surface heat exchange.Surface as the internal layer jacket pipe of cold junction 40 contains a plurality of pleated 43.Driving power 42 is arranged in the inside of heat pipe 1, can adopt bonding connection mode to realize and being connected with heat pipe 1.The blast pipe 7 of heat pipe 1 is arranged in chuck inwall.

Pleated in inner tube in Figure 17 and 18 embodiment can increase at most nearly 30% area of dissipation, can reduce on year-on-year basis 4 to 6 ℃ of the temperature of LED2.

Figure 19 provides the 11 embodiment of the utility model.

In Figure 19, heat pipe LED shot-light comprise heat pipe 1, LED2, driving power 42 and with extraneous electrical connection interface 5, condenser 44 and housing 45.With extraneous electrical connection interface 5 be twisted-pair feeder.Rectangular cross section is processed into for improving with the heat transfer efficiency of LED2 in 38 places, heat pipe 1 hot junction.Heat pipe 1 cold junction 40 is got the integrally bending that serpentine bend dullness stretches upwards and do to adapt to condenser 44 and housing 45 and is refluxed to guarantee working medium.Heat pipe 1 is arranged in condenser 44 rear sides in housing 45 together with driving power 42.Condenser 44 collects light and forms shot-light effect.

Be necessary to emphasize: the hot end surface of the utility model heat pipe can partial operation become plane or almost plane for improving with the heat transfer efficiency of LED2.At this moment, the cross section that is processed into the heat pipe package of plane or almost plane described in can be for comprising a straight line corresponding with plane and other various shapes.

Figure 20 provides the 12 embodiment of the utility model.

In Figure 20, LED wall lamp comprise sleeve type heat-pipe 1, LED2, with extraneous electrical connection interface 5 and driving power 42.Translucent adhesive such as silica gel bonding for the light-emitting area of LED2 and sleeve type heat-pipe 1 hot junction.The light-emitting area of LED2 and heat pipe 1 hot junction bonding.The light that LED2 sends irradiates by the tube wall of two-layer heat pipe 1.In four surfaces of heat pipe 1 two-layer tube wall, there is an above effect of processing to play even mating plate through frostedization.

Figure 21 provides the 13 embodiment of the utility model.

In Figure 21, the imitative crystal pendant lamp array of LED comprises heat pipe 1, LED2, cup-shaped even mating plate 6 and driving power 42, and adopts flexible cord to be connected with extraneous power supply.

Figure 21 embodiment is because LED remains good operating mode, and light decay is slow.Thereby contribute to keep for a long time photochromic uniformity.Can give the impression of crystal pendant lamp very high quality.

Figure 22 provides the 14 embodiment of the utility model.

In Figure 22, LED lamp affixed to the ceiling comprises heat pipe 1, LED2, driving power 42 and housing 45.The hot junction 38 of heat pipe 1 is roughly bent into a round rectangle and arranges and conduct heat and be connected with each LED2 along housing 45 surrounding inner sides.From hot junction, to start upwards to coil a circle with the form of round rectangle many at 38 two ends respectively for two cold junctions 40 of heat pipe 1.Cold junction 40 represents with thicker solid line and dotted line and thinner solid line and dotted line respectively in two views.The finished product of Figure 21 embodiment, 40 watts of LED lamp powers, it highly can be only 35 millimeters, and it is 0.9 kilogram that its weight alleviates from 3.2 kilograms of same specification cast aluminium radiator light fixture; Heat-sinking capability is also improved largely.

Figure 23 and 24 provides the 15 embodiment of the utility model jointly.

In Figure 23 and 24, heat pipe LED traffic lights comprise heat pipe 1, LED2, driving power 42, housing 45, guide rail basis 46 and heat pipe chute-type installation interface.Heat pipe 1 comprises plane hot junction 38 and a shaft-like cold junction 40 with level inclination, and 38 splicings of each plane hot junction form a large perpendicular, each plane hot junction 38 above positive bonding LED2 form a display interface.Chute-type installation interface is aluminium profile member, comprises that one can coordinate the chute 49 being slidably connected with guide rail basis 46, two, both sides with joint face 47 and two of the both sides of heat pipe 1 plane hot junction 38 back side bonding connections.During maintenance, can directly along guide rail basis 46, pull out heat pipe chute-type installation interface.Heat pipe 1 is bonded on joint face 47.LED2 is pasted on heat pipe 1 the place ahead, hot junction with heat-conducting glue.The hot junction of a heat pipe 1 a plurality of LED2 that can bond comprise the LED2 that sends different colours light.When the LED2 of three kinds of different colours light of the hot junction of a glass heat pipe 1 bonding, can manufacture three look one is traffic lights.The traffic lights of three look one are saved material.

In Figure 23 and 24 embodiment, heat pipe 1 adopts the shaft-like cold junction 40 stretching out backward, both can dispel the heat sufficiently uniformly, is applicable to again the requirement of the intensive installation of traffic lights LED2 larger area.

Figure 25 provides the 16 embodiment of the utility model.

In Figure 25, upper half paraboloid rotary body chuck heat pipe LED light fixture comprises that half paraboloid rotary body chuck 50 is heat pipe 1, LED2, lower half paraboloid rotary body 51 and driving power 42.Interior half chuck of upper half paraboloid rotary body chuck 50 heat pipes 1 is got roughly parabola rotary body shape, its form a complete roughly parabola rotary body together with lower half paraboloid rotary body 51 and on described parabola rotary body Tu minute surface processed, described parabola minute surface is converted to a light beam roughly for light that spot light LED2 is sent.

Figure 25 embodiment utilizes half paraboloid rotary body chuck 50 as heat pipe, can obtain the area of dissipation of 100 to 300 square centimeters, and the LED light fixture that is applicable to 8 to 25 watts comprises mine lamp, car light and small projector light fixture.Its lower half-body of revolution 51 can adopt plastics or metal to make.As required, can suitably be out of shape described parabola rotary body.

Figure 26 provides the 17 embodiment of the utility model.

In Figure 26, the parabola rotary body heat pipe LED light fixture of back-off comprises that the parabola rotary body chuck 52 of a back-off is heat pipe 1, LED2 and driving power 42.The inner side of the parabola rotary body chuck 52 of back-off is a parabola rotary body, on described parabola rotary body, is manufactured with minute surface, and described minute surface is converted to a light beam roughly for the light that spot light LED2 is sent.The bead of parabola rotary body chuck 52 is level and smooth and have the width suitable with LED2 width and for conducting heat, be connected LED2.Electrical connection interface 5 adopts two-wire.

Figure 26 embodiment utilizes the parabola rotary body chuck 52 of back-off as heat pipe 1, can obtain the area of dissipation of 100 to 600 square centimeters, applicable light-emitting area is that the bead of parabola rotary body chuck 52 is a circle and the LED light fixture of 8 to 50 watts that can horizontal setting.When heat pipe 1 inside arranges liquid-sucking core net, the variation at its opposite heat tube inclination angle is insensitive, can make the bead of parabola rotary body chuck 52 described in described light-emitting area normally work within the scope of the level inclination of positive and negative 10 °.Figure 27 is the structural representation of a Platelike heat pipe LED light fixture.

Figure 27 provides the 18 embodiment of the utility model.

In Figure 27, Platelike heat pipe LED light fixture comprises a Platelike heat pipe 1, LED2 and driving power 42.Electrical connection interface 5 adopts two-wire.The LED2 of Figure 27 embodiment be distributed in Platelike heat pipe 1 below, can obtain flat luminous illuminating effect.When Platelike heat pipe 1 internal placement liquid-sucking core net 53, can make Platelike heat pipe 1 normally work within the scope of positive and negative 10 ° or larger level inclination.When the imbibition ability of described liquid-sucking core net 53 can guarantee the working medium of Platelike heat pipe 1 to be transported to each LED2 place for LED2 heat release evaporation by capillarity, even the light-emitting area of uniform LED2 normally can be worked upward and within the scope of positive and negative 10 ° or larger level inclination.For overcoming the pressure differential of Platelike heat pipe 1 tube wall both sides, be the poor of inner approximately 0.1 atmospheric pressure and outside 1 atmospheric pressure, in Platelike heat pipe 1 inside, two inwalls that support member 54 withstands Platelike heat pipe 1 be from the inside set.At Platelike heat pipe 1, do not arrange that the foaming material 55 that outwardly convex is set on a tube wall of LED2 can increase considerably the cold junction area of Platelike heat pipe 1.

Heat pipe wall thickness with foaming material 55 can reduce.The clean slightly trouble of heat pipe with foaming material 55.In heat pipe 1 tube wall Tu photocatalyst of titanium dioxide coating processed, the organic matter dirt that can utilize the light last decomposition of light fixture to contact with described coating of titanium dioxide, makes it to become the simple molecules such as nitrogen, carbon dioxide and water.Can be with reference to existing techniques in realizing in heat pipe 1 tube wall Tu photocatalyst of titanium dioxide coating processed.

The positive end out line that also can make the heat pipe of Figure 27 embodiment is other form beyond round rectangle, such as the ellipse of Figure 27 top.Like this, can both utilize the compressive property that domes are good, can make again volume miniaturization and make the capillarity section of liquid-sucking core net be unlikely to long, slightly the light-emitting area illumination angle of arch is better than plane.

The making of the Platelike heat pipe 1 of Figure 27 embodiment can be with reference to the content of the first two embodiment 16 and 17.

Claims (9)

1. the cold junction heat pipe LED light fixture that directly dispels the heat, comprise heat pipe, LED, driving power and with extraneous electrical connection interface, heat pipe comprises shell, blast pipe, working medium and liquid-sucking core net; Heat pipe cold junction is shaped with or is not shaped with pleated; Comprise two core electric wires or bulb screw mouth connector with extraneous electrical connection interface; When described LED color or colour temperature are while being constant, a plurality of LED that form described color or colour temperature comprise that three-primary color LED can only realize with one group of two wire and extraneous electrical connection with extraneous; When described LED color or colour temperature are while being adjustable, a plurality of LED that form described color or colour temperature comprise that three-primary color LED adopts respectively one group of two wire to realize and extraneous electrical connection with extraneous separately, and it it is characterized in that the hot end surface of heat pipe, and the non-light-emitting area of LED matches and the non-light-emitting area of LED is connected with heat pipe hot junction direct heat transfer; Heat pipe cold junction is without wing plate.

2. the cold junction according to claim 1 heat pipe LED light fixture that directly dispels the heat, is characterized in that outside, heat pipe hot junction contains LED circuit plate, and the outer surface in the inner surface of LED circuit plate and heat pipe hot junction matches; LED circuit plate comprises insulated substrate and is made in conducting wire, LED linkage interface, circuit board enhancement Layer and the mesh on insulated substrate; LED linkage interface comprises soldering interface; Enhancement Layer comprises stephanoporate steel plate or the elasticity web plate that is embedded in insulated substrate inside; Between LED circuit plate and driving power, by several wire cable, realize both connections, described both connection comprises that mechanical connection, electrical connection and the binding of opposite heat tube are simultaneously connected; Described both connection comprises by the cable linkage interface of LED circuit plate or driving power periphery and realizing; Cable linkage interface comprises that cable is wound around stub; Or, the structure that makes described driving power adopt driving power main body to be connected with a driving power base; Driving power main body configuration contact chip, driving power base configuration cable buckling groove, after driving power main body and driving power base are connected, described contact chip and described cable buckling groove are realized electrical connection; And adopt with cable joint end and serial connection/and be connected to the fast wiring cable of elastic component; Fast wiring cable has sufficiently high tensile strength; Elastic component comprises one section of spring, makes described cable joint end be connected with the clamping of described cable buckling groove; Comprise being connected between LED circuit plate and fast wiring cable and be welded to connect or connect in succession soon, connect in succession soon and comprise that above-mentioned clamping connects.

3. the cold junction according to claim 2 heat pipe LED light fixture that directly dispels the heat, is characterized in that LED circuit plate contains some LED hole, and the edge in LED hole contains the above and LED linkage interface in two places; LED is arranged in described LED hole and with Heat Conduction Material and comprises that elastic conducting hotting mask conducts heat and is connected with heat pipe hot junction with transparent heat conduction binding material.

4. the cold junction according to claim 2 heat pipe LED light fixture that directly dispels the heat, is characterized in that the LED linkage interface on LED circuit plate is stainless sheet steel on a wiring board being arranged on wiring board; The stainless sheet steel stitch welding plain film with corrugated changeover portion is contained respectively at LED two ends; Two stainless sheet steels are the position that is welded to connect that on wiring board, stainless sheet steel and stitch welding plain film are superimposed with each other and contain laser stitch welding.

5. the cold junction according to claim 2 heat pipe LED light fixture that directly dispels the heat, is characterized in that LED circuit plate comprises flexible PCB;

Pass hot linked LED surface with heat pipe hot junction and contain shape and the identical elastic conducting hotting mask of heat pipe hot end surface; Heat pipe contains the linkage interface with LED circuit plate and driving power or driving power base, and linkage interface comprises the interface that is threaded with LED circuit plate and driving power or driving power base; Linkage interface also comprises that the positioning step of an above outwardly convex and LED circuit plate and driving power or driving power susceptor surface contain respectively the linkage interface matching with described positioning step surface; Or,

Contain some laminating fin or laminating groups of fins of conducting heat and being connected with heat pipe cold junction; Pass hot linked LED surface with heat pipe hot junction, and described laminating fin or laminating groups of fins and surface, heat pipe contact position are contained heat-conducting glue or are contained shape and elastic conducting hotting mask that heat pipe hot end surface is identical; Heat pipe contains the linkage interface with LED circuit plate and driving power or driving power base, and linkage interface comprises the interface that is threaded with LED circuit plate and driving power or driving power base; Linkage interface also comprises that the positioning step of an above outwardly convex and LED circuit plate and driving power or driving power susceptor surface contain respectively the linkage interface matching with described positioning step surface.

6. the cold junction according to claim 2 heat pipe LED light fixture that directly dispels the heat, is characterized in that LED wiring board contains one end band hitch and is not connected in series the fast wiring cable of elastic component; Driving power base contains a carbine with retractility; Described fast wiring cable and the socket of described carbine realize and electric and mechanical connection between the two; Or LED wiring board contains one end band hitch and is not connected in series the fast wiring cable of elastic component; Driving power base contains a diving board hook with flexibility; Described fast wiring cable and described diving board rhampotheca connect the electric and mechanical connection of realizing with between the two.

7. the cold junction according to claim 1 heat pipe LED light fixture that directly dispels the heat, is characterized in that LED two ends respectively contain a heat pipe package jump ring part, and jump ring part comprises two reeds, and the free end of each reed respectively contains an above contact pin; Jump ring part conducts heat and is connected with heat pipe hot junction; Contact pin can insert a Plug pin patch bay and realize electrical connection between the two.

8. the cold junction according to claim 1 heat pipe LED light fixture that directly dispels the heat, is characterized in that also comprising an even mating plate; An even mating plate magnetic linkage interface is respectively contained in the hot junction of heat pipe or hot junction boundary and even mating plate inner side; The material of described magnetic linkage interface comprises: paramagnetic material+permanent-magnet material or permanent-magnet material+permanent-magnet material; Described two even mating plate magnetic linkage interface magnetic connect.

9. according to the heat pipe LED light fixture that directly dispels the heat of the cold junction described in claim 1 or 2 or 7 or 8, it is characterized in that containing an above heat pipe, comprise heat pipe with an above cold junction, with the U-shaped tubular heat tube of two cold junctions, comprise two main cold junctions of U-shaped tubulose and in many cool side heat pipes of main cold junction Shang Pangjie branch cold junction with main cold junction; Described each cold junction comprise pull out straight upwards, helical buckling upwards and the cold junction that makes progress of serpentine bend; All LED are arranged in each heat pipe hot junction according to heat radiation load sharing.

10. according to the heat pipe LED light fixture that directly dispels the heat of the cold junction described in claim 1 or 2 or 7 or 8, it is characterized in that heat pipe cold junction does not contain special-purpose fin; Or heat pipe cold junction has bigger serface surface and comprises pleated.