LED lights factory cooling principle of lamps and lanterns

LED street lamp manufacturer of lamps and lanterns cooling heat dissipation design principle. LED street lamp manufacturers used to make outdoor lamps and lanterns is generally above IP65 protection grade, if the shell for nonmetal ( Such as plastic) Materials, although the LED on the aluminum plate connected ( MCPCB) , but the quantity of heat of aluminum substrate LED effectively without conduction to the surface of the shell, then gather heat can make the aluminum substrate temperature has risen sharply, the LED high temperature caused by increasing the possibility of failure, cause the LED light failure, shorten service life. Calculate the thermal conductivity of lamps and lanterns theory there are many difficulties in theory, the main difficulty is at the same time conduction and convection heat transfer plays a role 'and convection is inside the sealed cavity of convection, boundary condition is very complex; Conduction is by multi-layer thermal conductive material multi-layer interface, cross section product range again, usually lead to the situation of the heat flow line distribution can not be calculated before can is obtained by analysis. Heats up after because the lamps and lanterns is in the open, to * after thermal steady state, that is to say, the thermal stability state of high temperature *, so the heat calculation of lamps and lanterns of steady state is considered, the transient temperature distribution is not important. Due to the structure of the lamps and lanterns is a variety of media, so in the actual calculation, each kind of medium one by one to solve, must be calculated Gui temperature field distribution inside the lamps and lanterns is very difficult, and it is not necessary. In fact, care about is whether some parts of the temperature within the temperature range of permissible, just calculate these parts at the temperature of the thermal stability. Thermal structure design of the lamp body was the creation of the LED lamps and lanterns is a problem that nots allow to ignore. LED street lamp manufacturers know although LED cold light source, the work itself is not a hot body, but when the current through the LED heat resistance will make the lamp body temperature, semiconductor materials produced by the LED will rapidly aging at high temperature, droop down to slow the LED lighting, LED lamps and lanterns have longer service life, must reduce the junction temperature of LED chip, to reduce the junction temperature, will reduce the lamp body temperature, and to reduce the thermal resistance between LED chips and light body that will be for good LED lamps and lanterns, heat dissipation problems. Dear customer: thank you for your attention to our products, the company in addition to have the product introduction, and street lamp manufacturers, scenery complementary street lamp manufacturers, manufacturer solar street lamps, solar street lamp manufacturers, and so on, if you are interested in our products, welcome to inquire. Thank you very much!
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