From the manufacturer to the consumer LED heat dissipation problem solving

Well-known LED has many advantages, compared with traditional lamps and lanterns, LED lamps and lanterns, in all aspects of advantage is much better than traditional lamps and lanterns, this also is why consumers like the LED lamps and lanterns, but LED also has a fatal problem & ndash; — The cooling! In this paper, from two aspects to introduce how to solve the cooling problem! Solve the heat dissipation of the LED, mainly from two aspects, and before packaging, can be understood as the LED chip heat dissipation and the LED lamps and lanterns of heat dissipation. Led chip cooling is mainly related to substrate and selection and process of the circuit. , the LED lamps and lanterns manufacturer will out all kinds of methods to solve, such as the T8 tubes, on the part of the bulb add one-third of the aluminum next to the aluminum substrate to help LED chip heat dissipation; Such as industrial and mining lamp, the high power LED lamps and lanterns, around the aluminum plate LED a thick copper to speed up the cooling. Other Led lamps and lanterns, heat dissipation, because made any Led lamps and lanterns, so the heat generated by the Led chip is always through the shell of lamps and lanterns are scattered into the air. If heat dissipation is not good, because the LED chip thermal capacity is small, a little heat accumulation will make the chip junction temperature increase rapidly, if long time work in the condition of high temperature, it would quickly shorten service life. However the quantity of heat to be able to lead to real chips to the outside air, go through many ways. In particular, the heat produced in the LED chip, from metal heat block it out, first through to the aluminum substrate PCB solder, again through the heat conduction glue to the aluminum radiator. So actually LED lamps and lanterns, heat dissipation includes heat conduction and heat dissipation of two parts. However the LED lamp shell heat according to the power size and the use place, also can have different choices. Now basically has the following several kinds of cooling methods: aluminum radiator fins: this is the most common way of heat dissipation, use aluminum radiator fins as a part of the shell to increase the cooling area. Thermal conductive plastic case: when plastic shell injection molding filling thermal conductive materials, increase the plastic shell heat conduction and heat capacity. Air fluid mechanics using the lamp shell shape, create convection air, this is the lowest cost to strengthen the cooling way. Fan lamp shell internal reinforced with long life high efficiency fan heat dissipation, low cost, good effect. Fan is trouble some, but want to change also does not apply to outdoor, this design is relatively rare. Heat pipe, heat pipe technology is used to transform heat from the LED chip to shell the cooling fins. In the large lamps and lanterns, this is a common design such as lamps. LED lamps and lanterns, heat dissipation problems, everything from the manufacturer to the consumer to do a good job in heat consumers actually is pay attention to the location of the installation of lamps and lanterns, avoid installed in high temperature environment, if must be used under the environment of high temperature, suggestion choice, the lamps and lanterns of special purpose!