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Request Outdoor Lighting LED Tube

LED tube lighting out as a result of the more complex environment, affected by temperature, UV, humidity, rain rain, dust, chemicals, gas and other natural conditions, the impact over time, it will cause LED Tube light fades to a serious problem. Therefore be considered final, outdoor lighting designers should consider when designing the external environmental factors on the tube of LED outdoor lighting.

Second, heat lamps outdoor equipment choices led tube should pay attention

Shell and the radiator as a whole, to solve the problem of heating tube LED, this approach is better, generally use aluminum or aluminum alloy, copper alloy or copper, and good thermal conductivity of other alloys. Convection cooling with air, strong winds and the heat pipe cooling of the thermal heat, (Heat is similar to a cooling jet cooling by heat pipes, but the structure is more complex.)

Choose the type of method cooling, the cost of the lamps have a direct impact, should be considered, select the best product support and design programs.

Shade material selection is crucial, the current use of transparent Plexiglas, PC materials, the shadow of traditional glass is transparent, that this type of election materials from the shadows to the design of positioning on product quality, in general, outdoor lighting The best shade is the traditional glass, which is to create long-term, the best choice for high-end lighting. The use of plastic transparent, plexiglass and other materials to make the shade, interior lighting of the shade to do well for the outdoor life is limited, as sunlight outdoors, ultraviolet radiation, dust, chemical gases, day and night temperature changes and other factors that shorten the lamp life of aging, followed by the liquidation of pollution, could not easily clean and so reduce the impact of the production of light transparency of the lamp.

Third, outside Tube LED chip packaging technology

Current domestic production of light Led Tube (mainly the street) are mainly used over 1W LED Tube Series and parallel to the assembly, this approach most advanced packaging thermal high-tech hydraulic fittings products, is not easy to create high-quality lighting. Or is the use of 30W, 50W or more modules to be assembled, in order to achieve the required power, packaging materials Led Tube useful in the resin epoxy encapsulation silicone useful. The difference is: less temperature epoxy resin, a time Easy to aging. Silicone encapsulated temperature is better, should be used with careful selection.

The author of view is: a multi-chip package and heat sink is better overall, or multi-chip package with aluminum plate and then through the phase change materials and thermal grease and the radiator to link the products manufactured by the thermal resistance that the Assembly device tube LED thermal resistance at least two thermal resistance, more conducive to heat dissipation. Led Tube lamps per module, the module substrate is generally copper substrates, which joins external heat sink to use a phase change material good or a good thermal paste to ensure the copper substrate in the propagation time heat off the heat to the device, such as handling is not easy to make the accumulation of heat caused by the temperature rise too high module chip, the chip LED Tube work. I think: multi-chip package suitable for the manufacture general lighting, ideal for situations of limited space compact modular manufacturing LED light tube (like the headlights drive from the main lighting, etc.).

Fourth, in the design of outdoor lighting Led Tube Radiator

LED light tube radiator is an essential element, its shape, size, surface heat dissipation must be designed to conform to the benefits the radiator is too small, the temperature of the LED lamp tube is too high luminous efficiency and lifetime of the radiator too large, the material consumption for increase product cost and more weight, reduced competitiveness of products. Led tube design suitable heat sink is essential. Heatsink includes the following:

1. Clearly led tube light cooling power needed.

2. Radiator with some of the parameters: the specific heat of metal, metal, thermal conductivity, resistance to chipping, heat sink thermal resistance, ambient thermal resistance.

3. Determine the use of dispersed type (heat by natural convection cooling of the wind strong cooling heat pipes and other means of cooling heat) to the cost comparison:. lower costs by natural convection cooling medium large wind, heat pipe cooling high cost of air cooling the highest cost.

4. Determine the temperature maximum allowable operating Led Tube Lamp (room temperature over lamps permitted temperature rise)

5. Calculate the size the radiator, cooling region. And to determine the shape of the radiator.

6. The radiator and the tube light LED to form a complete lighting and power for more than eight hours at room temperature 39 ℃ – 40 ℃ environment temperature of the lamp check to see if it meets the cooling requirements to test the calculation is correct, as not meeting the conditions of use will recalculate and correct the settings.

7. Radiator and sealed tight in the shade, dust, darkness and the heat sink between the aging pad the rubber mat or rubber mat, with a stainless steel bolt, so that sealed waterproof

Note the four points above, then the light of the promulgation of the final technical specifications for outdoor lighting, street lighting and design standards urban, it is essential to designers of exterior lighting to the most basic Fiber Optic knowledge terminal box.

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