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Time：2021-10-19Views：0
Generally, the environment where the cooling fan is used is a high temperature environment, but some special products need to work at room temperature. In low temperature areas, the cooling fan also needs to work. Then, the cooling fan can work at a low temperature such as -20 degrees?
For customers who have such requirements, we will design fans that can work at low temperatures for customers. Normally, ordinary oil-bearing fans may not work if they are below -10 degrees, and the lubricating grease may be solidified.
Our design is that using ISC ball bearings imported from Japan, it can still work normally at a low temperature of -20 degrees, but the speed will be lower, and the temperature will be lower, causing the bearing to solidify, freeze, and the shaft core cannot rotate. At this time, There will be a short circuit inside the cooling fan, the temperature of the motor rises, the temperature rises, the ice around the shaft core melts, and the cooling fan can run
The three-phase star connection of the DC cooling fan has a variable frequency motor control circuit
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