国产精品嫩草影院入口一二三_99r6这里在线精品视频_久久99这里只有是精品6_久久99精品久久久久久不卡 无码骚夜夜精品,超碰97人人模人人爽人人喊,亚洲成Av人在线观看网站,国产高清不卡一区二区

Contact Us

220V Cooling Fan self-cooled thermal design formula

Date: 2014-12-15   Click: 1545 Times

Since "220V Cooling Fan" rear radiator installed will greatly reduce the thermal resistance, and the heat always tend to flow to the direction of least resistance, so when the power supply module mounted on the heat sink, can be considered, the power generated by the module basically through the radiator and the heat dissipated in. Only a few (less than 10%) of the heat from the enclosure floor "220V Cooling Fan" of the power module and the side walls and dissipated by heat exchange. From the previous sections we can find a formula consumed by the power module and the module housing and Pd heat the surrounding fluid (air) temperature difference △ T. Such "220V Cooling Fan" heatsink thermal resistance Rth required for the following task is to check the radiator catalog or manual to find out the size of the power supply module substrate rather, in a suitable environment for temperature and natural convection and radiation thermal resistance of the heat sink can be smaller than Rth.

Back to: Industry news

+86-0769-83660708

Home Product News Contact