When the UV light is cured, the UV ink undergoes a photochemical reaction after irradiation. If the UV light power density is higher, the curing depth and speed are also increased, and the printing work efficiency is improved. Therefore, in order to ensure the optical power density, the high-power UVLED chip adopts an array arrangement, and its total power can reach 292.5W.
In the work of high-power LED, about 80% of the electricity is converted into heat energy, optical power density = total power × thermal energy conversion rate / light exit area, after calculation, the optical power density can meet the curing requirements of UV ink. If effective heat dissipation measures are not taken, the temperature of the LED will rise rapidly, which will seriously affect the performance.
Due to the simple structure and high reliability of the natural convection heat dissipation, it is more suitable for lamps with less power. The heat generated by the LED array is easily concentrated locally to form a "hot spot", and the heat sink of the power substrate can be used in a larger volume. Heavy, used on moving nozzles can put a burden on the mobile device of the printing press.
The semiconductor refrigeration chip has a compact structure, a very small thermal inertia, and a short cooling time, which can effectively eliminate "hot spots" and make the temperature of the heat dissipation surface uniform. Although the power of a single cooling element is small, it can be combined into a refrigeration system, so the range of cooling power range is relatively large. This high-power UVLED was chosen to replace the traditional heat sink heatsink with a semiconductor refrigeration module.
Description
-Contact resistance:≤5Omohm
-Switch Function: S. P. D. T. with lamp.
-Various shapes and colors: yellow, blue, red, black, green
-Press the button, power on; release it, power off
Features
A push button switch is a switch that has a knob that you push to open or close the contacts. In some pushbutton switches, you push the switch once to open the contacts and then push again to close the contacts. In other words, each time you push the switch, the contacts alternate between opened and closed. These types are commonly called latching switches. There are also Non latching push button switches that only maintain the switch contacts when the switch is help in position. Once the switch is let go, the current is broken and the switch turns off. Push switches are usually a simple on-off switch.
Push Light Switch,Mini Push Button Switch,Push Button Switch Types,Push Button On Off Switch
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