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Indoor LED Lighting Further Development
Jun 12, 2017

At present, Indoor LED Lighting the biggest technical problem of LED lighting is the problem of heat dissipation, which leads to led driving power supply, electrolytic capacitors have become the LED lighting further development of the short plate, LED light source of premature aging. In the lighting scheme using Lvled light source, because the LED light source works at low voltage (Vf 3.2V), large current (If 300-700ma) working state, heat is very strong, traditional lamp space is narrow, small area of radiator is very difficult to quickly export heat. Indoor LED Lighting Despite the use of a variety of thermal solutions, the results are unsatisfactory, as LED lighting is a solution-free problem. Looking for easy to use, good thermal conductivity, and low-cost heat dissipation materials are always in the effort.

At present, the LED light source in the power, about 30% of the energy converted into energy, the rest of the conversion into heat so much heat energy to be exported as soon as possible is the key to the design of LED lamps and lanterns, thermal heat conduction, heat convection, heat radiation to be distributed. Indoor LED Lighting Only as soon as the heat can be exported to effectively reduce the temperature of the LED lamps inside the cavity, in order to protect the power supply is not in a prolonged high-temperature environment to work, Indoor LED Lighting in order to avoid LED light source due to long-term high temperature work and premature aging.

Because the LED light source itself does not have infrared, Indoor LED Lighting ultraviolet rays, so the LED light source does not have radiation heat dissipation function, led illumination lamp's heat dissipation way only through with the LED lamp Bead Board close combination radiator to derive the heat. Indoor LED Lighting The radiator must have the function of heat conduction, heat convection and heat radiation.

Any radiator, in addition to the heat from the heating source to quickly transfer to the surface of the radiator, the main thing is to rely on convection and radiation to the heat emitted into the air. Heat conduction only solves the way of heat transfer, and heat convection is the main function of radiator, the heat dissipation is mainly determined by the capacity of radiating area, shape and natural convection intensity, and the heat radiation is only the auxiliary function. In general, if the heat from the heat source to the surface of the radiator is less than 5mm, so long as the material thermal conductivity is greater than 5 o'clock, Indoor LED Lighting its heat can be exported, the rest of the heat must be heat convection to dominate.

Most LED lighting sources still use low voltage (Vf 3.2V), large current (If 200-700ma) LED lamp beads, because of the high heat at work, the use of aluminum alloy with higher thermal conductivity must be used. Usually have a die-casting aluminum radiator, extruded aluminum radiator, stamping aluminum radiator. Die-casting Aluminum radiator is a pressure casting part of the technology, the liquid zinc and copper alloy poured into the die-casting machine into the mouth, die-casting machine, die-casting, the design of the mold in advance of the limited shape of the radiator.

Extruded aluminum radiator is the liquid aluminum through the fixed mold extrusion molding, and then the bar through the machine cutting into the shape of the need for the radiator, late processing costs are higher. Extruded aluminum radiator. The fins can be done a lot of thin, Indoor LED Lighting the heat dissipation area to maximize the expansion of the fins work automatically form air convection diffusion heat, Indoor LED Lighting heat dissipation effect is better

Stamping aluminum radiator is through the punch and die on steel, aluminum alloy plate stamping, pull up, so that it becomes a cup-shaped radiator, stamping-shaped radiator inside and outside the surrounding smooth, because there is no wing and the heat dissipation area is limited. Indoor LED Lighting Commonly used aluminum alloy materials are 5052, 6061, 6063. Stamping parts of small quality, high utilization of materials, is a low-cost solution.

The heat conduction of aluminum alloy radiator is ideal, which is more suitable for the isolated switching constant current power supply. For the non-isolated switch constant current power supply, Indoor LED Lighting it is necessary to pass the structure design of the lamp to communicate and DC, high-voltage and Low-voltage power supply isolation, in order to pass the CE or UL certification.