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Indoor LED Lighting Heat Transfer Path
Sep 26, 2017

LED lighting is currently the biggest technical problem is the cooling problem, Indoor LED Lighting poor heat dissipation lead to LED drive power, electrolytic capacitors have become the further development of LED lighting fixtures, LED light source premature aging reasons. Indoor LED Lighting In the use of LVLED light source lighting program, because the LED light source work in the low voltage (VF = 3.2V), high current (IF = 300-700mA) working condition, the heat is very powerful, the traditional lighting space is small, small area of heat It is difficult to derive heat quickly. Despite the use of a variety of cooling programs, the results are unsatisfactory, a LED lighting a solution to the problem. Looking for easy to use, good thermal conductivity, Indoor LED Lighting and low-cost cooling materials are always in the effort.

At present, LED light source after power, about 30% of the energy into light energy, the rest into heat so it should be so much heat as soon as possible export LED lighting design is the key technology, heat through the heat conduction, thermal convection, heat radiation Can be distributed. Indoor LED Lighting Only as soon as possible to export heat in order to effectively reduce the temperature inside the LED lamps in order to protect the power supply is not in the long-term high temperature environment, in order to avoid the LED light source due to long-term high temperature work and premature aging.

Because LED light source itself is not infrared, Indoor LED Lighting Indoor LED Lighting ultraviolet, LED light source itself does not have radiation cooling function, LED lighting cooling path can only be used with LED lamp beads plate close combination of heat sink to derive heat. Radiator must have the function of heat conduction, thermal convection, heat radiation.

Any radiator, Indoor LED Lighting in addition to the heat can be quickly transferred from the heat source to the surface of the radiator, Indoor LED Lighting the most important thing is to rely on convection and radiation to heat the heat to the air. Thermal conductivity only solves the heat transfer path, and thermal convection is the main function of the radiator, the heat dissipation performance is mainly determined by the capacity of the heat dissipation area, shape and natural convection strength, Indoor LED Lighting and the heat radiation is only auxiliary function. In general, if the heat from the heat source to the radiator surface distance of less than 5mm, then as long as the material thermal conductivity is greater than 5, the heat can be derived, Indoor LED Lighting the rest of the heat must be dominated by thermal convection.

Most LED lighting sources still use low voltage (VF = 3.2V), Indoor LED Lighting high current (IF = 200-700mA) LED lamp beads, because the work of high heat, Indoor LED Lighting you must use a higher thermal conductivity of aluminum. Usually die-cast aluminum radiator, extruded aluminum radiator, Indoor LED Lighting stamping aluminum radiator. Die-cast aluminum radiator is a pressure casting parts of the technology, Indoor LED Lighting the liquid zinc copper and aluminum alloy poured into the die-casting machine feed port, Indoor LED Lighting die-casting machine die-casting, casting mold design in advance shape of the radiator.