CN202091839U

CN202091839U - Led lamp

Info

Publication number: CN202091839U
Application number: CN2011201558939U
Authority: CN
Inventors: 潘宇强; 崔飒; 卢敬民
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-17
Filing date: 2011-05-17
Publication date: 2011-12-28
Anticipated expiration: 2021-05-17

Abstract

The utility model relates to an LED lamp, which includes a support, a constant current drive power supply, an organic glass housing permitting light diffusion, an aluminium base wiring board and LED patches; a heat dissipation coating is provided on a surface of a aluminium base sheet of the aluminium base wiring board; and a gas filler with a high heat conduction coefficient is provided in a bulb. The LED lamp has a good heat dissipation performance, is low in cost, long in service life, light, beautiful and practical, permits lumination of a whole body of the bulb, prevents generation of condensed water on an inner wall of the lamp and occurrence of glaring and meets the requirement of indoor illumination.

Description

The LED lamp

Technical field

The utility model relates to lighting device, especially relates to a kind of LED lamp that can promote heat dispersion.

Background technology

The LED lamp is compared common scalding lamp, fluorescent lamp, electricity-saving lamp and is had obvious superiority.Energy-efficient, than the energy-conservation 60%-80% of traditional energy-saving lighting lamp; Environmental protection does not have the no infrared ray of ultraviolet ray, and radiationless no stroboscopic can open frequently, harmful elements such as not mercurous and xenon.Belong to real environmental protection lighting source; Extra long life can reach 30,000 to 50,000 hours service life, is 30 times of common bulb; Safe and reliable, earthquake-proof function is strong, and the required voltage electric current is little, and caloric value is few, does not produce potential safety hazard; Applied range can be used for general lighting, solar lighting, and also available decorative lighting also can be used for city lighting cosmetic treatment etc.Along with becoming better and approaching perfection day by day of the luminous overall technology of LED, the LED illumination will obtain to use more widely.

But under present technical merit, also have many factors restricting the paces of LED illumination development.Dispelled the heat into a bottleneck in the LED illumination application.LED is when work, and PN junction can generate heat, if the thermal conductance that produces can not be gone out, makes junction temperature maintain reasonable level, and the light decay of LED will be very serious.Therefore, reasonably Design of Luminaires is satisfying outside other index of light fixture, and a key request is that heat dispersion will be got well, ball bulb especially, and paster is just had higher requirement to heat radiation by the sealing of ball bubble.For this reason, designers use different Heat Conduction Materials and have designed various radiator structures, make great efforts to reduce junction temperature, but present heat dissipation technology are ripe not enough, causes the light decay of LED bulb lamp also not come up to the expectation.The LED bulb lamp obtains must seek more efficiently radiating mode before the widespread adoption.In addition, the radiator structure that generally adopts is outer dress radiator at present, but this mode not only influences the outward appearance of LED lamp, and has increased the weight and the manufacturing cost of lamp.

Summary of the invention

The purpose of this utility model is that the objective requirement at the LED lamp under the above-mentioned technical background provides a kind of lifting thermal diffusivity, reduces manufacturing cost, weight reduction and improve the long-life LED lamp of outward appearance.

Technical solution of the present utility model is that the LED lamp comprises support, and constant-current driving power supply has the lucite shell of light diffusing, aluminum-based circuit board, the LED paster, the surface of the aluminium substrate of described aluminum-based circuit board is provided with the heat radiation coating layer, is provided with the gas inserts of high thermal conductivity coefficient in the bulb.

Above-described aluminum-based circuit board is one or more, linearly shape or U-shaped, perhaps spirality.

Aluminum-based circuit board of the present utility model is one or more, and its tail end is curved.

Heat radiation coating layer of the present utility model can be a ZS-411 radiation cooling dope layer.

The thickness of above-described ZS-411 radiation cooling dope layer can be 0.2-0.3mm.

The gas filler of the high thermal conductivity coefficient in the bulb of the present utility model can be the gaseous mixture inserts of helium inserts or hydrogen inserts or hydrogen and helium.

Operation principle of the present utility model is that aluminium substrate fully contacts with the gas that is sealed in the bubble lamp, after the heat that LED card sheet produces exports on the aluminium substrate, a part exhales with ultrared form, another part then imports gas in the bulb rapidly, import to shell by gas in the bulb again, be dispersed into outside the lamp at last.The thermal conductivity factor of air is 0.0233W/ (m ﹒ a ℃) in the time of 0 ℃, and helium is 0.144 W/ (m ﹒ a ℃), and hydrogen is 0.163 W/ (m ﹒ ℃), and leading coefficient during the rising temperature also will increase.This shows that when replacing air to be filled in the bulb with helium or hydrogen, heat-transfer rate has increased by 6 to 7 times, by means of the gas of heat radiation coating and high thermal conductivity coefficient, this structure makes the integral heat sink performance of lamp obtain obvious lifting.The aluminium substrate length and the radian that are welded with the low-power LED paster can be made adjustment with the shape of bulb outer wall, are evenly distributed thereby make apart from luminous point on the sphere at the equidistant place of bulb inner wall, have guaranteed that the bubble lamp can obtain the aesthetic of whole body uniform illuminating.In addition, behind filling helium or the hydrogen, lower when the gas humidity ratio fills air in the lamp, heat conduction is rapider in addition in the lamp, and gas temperature is more even in the lamp, and the temperature of lamp housing is just more even, thereby has eliminated the common condensed water of present LED bulb inner wall.This is that the design of radiator structure has replaced the simple aluminium alloy heat radiator heat dissipation design that generally adopts at present with aluminium substrate, helium or hydrogen, heat radiation coating and the organic material shell that disperses, and junction temperature has been dropped to lower temperature not using under the heat radiator dedicated situation; The use of special lamp housing material has also obtained desirable energy-conservation and anti-dazzle effect, thereby has reduced manufacturing cost when having improved the outward appearance of LED lamp again.

The utility model has the advantages that the heat dispersion that has promoted the LED lamp; Accomplished the bulb entirely lighting; Alleviated weight; Reduced cost; Avoided bulb inner wall can produce condensed water; Prevented the generation of dazzle, thereby made the LED lamp obtain the longer life-span and more attractive in appearance and practical, and then made it possess the condition in inlet chamber intraoral illumination field with lower cost.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a three-dimensional exploded view of the present utility model.

The specific embodiment

As shown in Figure 1 and Figure 2, the utility model mainly comprises lamp holder 1, support 2, constant-current driving power supply 3, lucite shell 4, aluminum-based circuit board 5, LED paster 6.Described aluminum-based circuit board 5 is 8, and the tail end of aluminum-based circuit board 5 is with lucite shell 4 crooked curved being arranged in the ball bulb.Aluminum-based circuit board 5 also can be linear, U-shaped or spirality.Power is that to be welded on width be that the power of LED paster 6 also can be selected in 0.06-1 watt scope on the aluminum-based circuit board 5 of 1mm for 0.56cm thickness to 0.1 watt LED paster 6.Be coated with one deck heat radiation coating layer 7 on the surface of aluminum-based circuit board 5.Heat radiation coating layer 7 is ZS-411 radiation cooling dope layers, and the thickness of ZS-411 radiation cooling dope layer is 0.25 mm, and its thickness also can be selected in the scope of 0.2-0.3mm.The lucite shell 4 of bulb is to add the light inlet dispersant in transparent organic materials such as PMMA or PC, aid in optical design again, make this lucite shell 4 have unusual high light transmission and good light diffusing, thereby obtained desirable energy-conservation and anti-dazzle effect.Fill the gas inserts 8 of full high thermal conductivity coefficient in the bulb under normal pressure, described gas inserts 8 is helium inserts, or the hydrogen inserts, also can be the gaseous mixture inserts of hydrogen and helium.The aperture of the central authorities of lamp holder 1 is used to bleed and inflate simultaneously, after other part assemblings of bulb are finished, vacuumizes from aperture at last, then sucks helium or hydrogen, then with the aperture of fluid sealant with conduction nut water tight lamp holder 1.

Claims

1.LED lamp comprises support, constant-current driving power supply has the lucite shell of light diffusing, aluminum-based circuit board, and the LED paster is characterized in that the surface of aluminum-based circuit board is provided with the heat radiation coating layer, is provided with the gas inserts of high thermal conductivity coefficient in the bulb.

2. LED lamp according to claim 1 is characterized in that described aluminum-based circuit board is one or more, linearly shape or U-shaped, perhaps spirality.

3. LED lamp according to claim 1 is characterized in that described aluminum-based circuit board is one or more, and its tail end is curved.

4. LED lamp according to claim 1 is characterized in that described heat radiation coating layer is a ZS-411 radiation cooling dope layer.

5. LED lamp according to claim 4, the thickness that it is characterized in that described ZS-411 radiation cooling dope layer is 0.2-0.3mm.

6. LED lamp according to claim 1 is characterized in that the gas inserts of the high thermal conductivity coefficient in the bulb is helium, hydrogen inserts, or the gaseous mixture inserts of hydrogen and helium.