CN203979917U

CN203979917U - LED immerses the glass heat pipe LED light fixture of working medium with enamel watertight composition

Info

Publication number: CN203979917U
Application number: CN201420055929.XU
Authority: CN
Inventors: 邱玉燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2014-12-03
Anticipated expiration: 2024-01-28

Abstract

LED immerses the glass heat pipe LED light fixture of working medium with enamel watertight composition, comprise glass heat pipe, LED, driving power, with extraneous electrical connection interface and control system, it is characterized in that glass heat pipe contains built-in LED; Described built-in LED wards off Tu watertight composition with the clear glass forming on LED and pin thereof in the glass solution by LED being immersed in fast to low melt temperature in surface; Described built-in LED immerses working medium; The electrode that the pin of described built-in LED melts envelope by glass is drawn; Described pin and electrode are through compatibility processing.Its glass heat pipe hot junction insulation of glass heat pipe LED light fixture that the utility model LED immerses working medium with enamel watertight composition can directly be conducted heat and be connected with LED, and heat-sinking capability is strong.Meet the requirement to radiator heat-dissipation area by make the pleated area of dissipation that can increase considerably at glass heat pipe cold junction.It is good that glass properties is stablized the strong air-tightness of weatherability.

Description

LED immerses the glass heat pipe LED light fixture of working medium with enamel watertight composition

Technical field

The utility model relates to LED and immerses the glass heat pipe LED light fixture of working medium with enamel watertight composition.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 that the hot junction heat transfer below heat pipe connects several LED.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, all get 1 centimetre of 2(0.5*0.7*2+0.1.25*(7+5+7+5 by surface conductive entered environment, LED all surfaces are long-pending for one of them long * is wide for the LED of 5*7 millimeter, 0.6 watt of general power, light efficiency 21% and the energy except luminous)), 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 exceed 100 DEG C.

Again, be the LED with radiator of 10 watts for a heat radiation load, 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 glass heat pipe cold end surface to air, and dimension is watt/(DEG C * ㎡); Δ T is the intensification that air is heated, dimension be K or DEG C; S is the area of the glass heat pipe cold junction that contacts with air, and dimension is square metre.

By Q=10, K=23 watt/(DEG C * ㎡), S=0.02 ㎡ substitution; 21.74 DEG C of the temperature rise Δ T ≈ of described heat dissipation model.In the time of S=0.017 ㎡, obtain 25.58 DEG C 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 more than incandescent lamp complexity.The temperature rise value of 30 DEG C of relative LED lamp radiator surface environment temperatures is got to 21.74 DEG C, and the temperature of getting Heat Conduction Material between LED and heat pipe hot junction fall 2 DEG C, the temperature of heat pipe hot junction tube wall fall 2 DEG C, fall from heat pipe hot junction to the temperature of cold junction two phase flow heat transfer ignore, the temperature of heat pipe cold junction tube wall falls 1 DEG C, the surface temperature of known described LED will reach 30+21.74+1+2+2=56.74 DEG C.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 DEG C, heat transfer coefficient are set as 23 and the maximum temperature of LED while being 64 DEG C, the glass heat pipe cold junction 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; Its metal heat pipe cold junction configuration radiating fin plate as with the heat exchange interface of air, 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, thereby has increased dispel the heat link and the heat exchange thermal resistance with 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 exceedes 65 DEG C 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 to provide LED to immerse the glass heat pipe LED light fixture of working medium with enamel watertight composition.

The utility model is realized the technical scheme of its object: manufacture a LED and immerse the glass heat pipe LED light fixture of working medium with enamel watertight composition, comprise glass heat pipe, LED, driving power, with extraneous electrical connection interface and control system, glass heat pipe comprises glass shell, blast pipe, working medium and liquid-sucking core net; 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, the multiple 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, the multiple 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.Control system comprises man-machine interface; Described man-machine interface is connected with the governor circuit signal of control system by wired or wireless mode.Make glass heat pipe shell each several part seamless melt to be sealed connect as one; Glass heat pipe contains built-in LED; Described built-in LED wards off Tu watertight composition with the clear glass forming on LED and pin thereof in the glass solution by LED being immersed in fast to low melt temperature in surface; Described built-in LED immerses working medium; The electrode that the pin of described built-in LED melts envelope by glass is drawn; Described pin and electrode are through compatibility processing.Through the material of compatibility processing not with working medium generation chemical reaction, can not produce on-condensible gas.

Can also make described control system comprise that three driving power controllers of governor circuit, memory, man-machine interface and interface circuit thereof, three-primary color LED and interface circuit, optical signal reception and transmitter module and interface circuit thereof, camera head microphone are subject to sound device and interface circuit and software thereof to comprise application program; Three driving power controller interface circuits of described governor circuit, memory, user-machine interface circuit, three-primary color LED, optical signal receive and be connected by bus signals by sound device interface circuit with transmitter module interface circuit and camera head microphone; Described man-machine interface comprises a touch device, and described touch device comprises the touch-screen with various background colors.

The beneficial effects of the utility model: its glass heat pipe hot junction insulation of glass heat pipe LED light fixture that the utility model LED immerses working medium with enamel watertight composition can directly be conducted heat and be connected with LED, in the situation that directly dispelling the heat with glass heat pipe cold junction, the shortest heat transfer glue or elastic conducting hotting mask and the glass heat pipe only comprising between LED and glass heat pipe of its heat transfer path from LED to environment.Actual effect is: on average reduce under 50 to 70% prerequisites at heat-pipe radiator or even radiator cost, 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 processing of glass heat pipe can only relate to fuel gas fire head, its carrying capacity of environment is insignificant.And because carbon emission in long 3 times of service life of glass heat pipe LED light fixture, glass heat pipe radiator production process is few, environmental benefit is obvious.The glass heat pipe cold junction with bigger serface is included in glass heat pipe cold junction and makes and pleatedly can increase considerably temperature and the cost that area of dissipation further reduces LED and increase few.It is good that glass properties is stablized the extremely strong air-tightness of weatherability, and significantly improve service life compared with metal heat pipe.Adopting high-transparent glass to manufacture heat pipe can bring or keep some brand-new visual experiences to comprise the light efficiency obtaining as crystal pendant lamp.Can also make in the light that LED sends upwards outwards illuminating by glass heat pipe tube wall through the diffused light part of several times reflection and transmission overcoming limitation that LED light fixture can not 360 degree illuminations, can also utilizing the tube wall of glass heat pipe to play the effect of even mating plate, thereby and obtain the experience of making organic LED or transparent organic LED and obtain selectable additional light efficiency at wide open face heat pipe cold end surfaces.

The utility model LED can also adopt the LED of double-side with the glass heat pipe LED light fixture of enamel watertight composition immersion working medium, to obtain distinguished lighting effects.

The utility model LED immerses the glass heat pipe LED light fixture of working medium with enamel watertight composition and does not adopt fin only to rely on the heat radiation of glass heat pipe cold junction and adopt compared with the heat pipe LED light fixture of fin and have advantages of surperficial easy cleaning.In glass heat pipe 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, plays the effect of automated cleaning; Especially adopt high-transparent glass to manufacture heat pipe, all surfaces that can make light arrive more light fixture through reflection and transmission carries out automated cleaning.

Glass heat pipe is light, corrosion-resistant, good with working medium compatibility, tube wall venting more than 90% for the consistent or harmless water vapour of working fluids characteristic, can once be blow molded into net shape and comprise the pleated of formation cold end surface.

Brief description of the drawings

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

Fig. 1 is the glass heat pipe LED fitting structure schematic diagram that a LED immerses glass heat pipe 1 working medium.

Fig. 2 is total line frame graph of a glass heat pipe LED lamp control system.

1. glass heat pipes in figure; 2.LED; 3. driving power; 4. with extraneous electrical connection interface; 5. control system; 6. man-machine interface; 7. glass melts envelope electrode; 61. governor circuits; 62. memories; 63. user-machine interface circuit; Three driving power controller interface circuits of 64. three-primary color LEDs; 65. optical signals receive and transmitter module interface circuit; 66. camera head microphones are subject to sound device interface circuit; 67. buses.

Detailed description of the invention

Fig. 1 provides first embodiment of the utility model.

In Fig. 1, glass heat pipe LED light fixture comprise glass heat pipe 1, built-in LED2, driving power 3, with extraneous electrical connection interface 4 and control system 5.Control system 5 comprises man-machine interface 6.Between the governor circuit of man-machine interface 6 and control system 5, adopt wired or wireless signal to be connected.Glass heat pipe 1 comprises glass shell and working medium.Built-in LED2 pin and light-emitting area thereof are with transparent watertight layer.The pin of built-in LED2 melts envelope electrode 7 by glass draws glass heat pipe shell.Glass melt envelope electrode making can be with reference to the electrode deriving structure of bulb.The manufacturing technology of transparent watertight layer can comprise with reference to prior art: ward off Tu watertight composition by LED being immersed in fast in the glass solution of low melt temperature and forming clear glass on LED and pin thereof.

The effect that described these watertight compositions can also have even mating plate concurrently simultaneously comprises the processing that makes described waterproof layer material increase scattering, and the processing of described increase scattering comprises takes frosted processing.

In Fig. 1 embodiment, the positive and negative of built-in LED2 contacts with the refrigerant heat transfer in glass heat pipe by watertight composition or transparent watertight layer, can make the heat radiation operating mode of LED significantly improve, and the power of LED2 can be increased exponentially comprise to adopt positive and negative all with the LED2 of light-emitting area.

Fig. 2 provides second embodiment of the utility model.

In Fig. 2, glass heat pipe LED lamp control system comprises that three driving power controllers of governor circuit 61, memory 62, man-machine interface and interface circuit 63 thereof, three-primary color LED and interface circuit 64, optical signal reception and transmitter module and interface circuit 65 thereof, camera head microphone are subject to sound device and interface circuit 66 and software thereof to comprise application program.Three driving power controller interface circuits 64 of described governor circuit 61, memory 62, user-machine interface circuit 63, three-primary color LED, optical signal receive and be connected by bus 67 signals by sound device interface circuit 66 with transmitter module interface circuit 65 and camera head microphone.The man-machine interface of Fig. 2 embodiment comprises a touch device.Described touch device comprises the touch-screen with various background colors.

Can comprise that the variation that application program makes the state of described LED light fixture touch touch-screen position according to user changes by software, such as user touches the redness on touch-screen, LED just sends red light.

Can comprise that the variation that application program makes the state of described LED light fixture touch touch-screen position according to user changes by software, for example user touches the acoustic control position on touch-screen, the light that LED sends intensity variation by it inquiry of replying or directly sound: " be very glad and accept owner's instruction." then user send and " please dance No. 14." sound, the microphone of LED light fixture sends " dances No. 14." sound.User says again: " start." LED light fixture sends light and the music of color change according to setting.

Can comprise that application program makes described LED light fixture take and the image of shooting with video-corder is sent in hidden receiving-member by optical signal carrier firm automatically the turning on light of user in the time entering by software, and automatically and the person of entering engage in the dialogue: " hello." user arranges and promise according to a preconcerted arrangement.LED light fixture is by comparing to judge it is that owner enters owner and serves program with the content of prior storage, if can turn off light daytime; Can also report and remind such as take medicine to water flowers to owner and meet child and make a phone call to household.If judge that the person of entering may be uninvited guest, enter uninvited guest's program of serving and comprise direct warning and sound the alarm.

Claims

1.LED immerses the glass heat pipe LED light fixture of working medium with enamel watertight composition, comprise glass heat pipe, LED, driving power and with extraneous electrical connection interface, glass heat pipe comprises glass shell, blast pipe, working medium and liquid-sucking core net; 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, the multiple 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, the multiple 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, is characterized in that glass heat pipe contains built-in LED; Described built-in LED wards off Tu watertight composition with the clear glass forming on LED and pin thereof in the glass solution by LED being immersed in fast to low melt temperature in surface; Described built-in LED immerses working medium; The electrode that the pin of described built-in LED melts envelope by glass is drawn; Described pin and electrode are through compatibility processing.

2. LED according to claim 1 immerses the glass heat pipe LED light fixture of working medium with enamel watertight composition, it is characterized in that containing positive and negative all with the LED(2 of light-emitting area).