Exhaust fans can help ventilation and ventilation. For example, in rooms with poor ventilation, such as bathrooms, etc., we can use exhaust fans to promote air flow, so that the room is not easy to get wet, and it can also remove odors. The exhaust fan is driven by a motor, so it will inevitably heat up for a period of time, but if the temperature is too high, it is best to turn it off for a period of time, which can save power and extend the service life.
When the exhaust fan is running, there will be heat, but also pay attention to whether there are these faults
If the kitchen exhaust fan is hot, this is because the thermal protection has acted, causing the thermal motor to lose power to protect the motor from burning out. This is often caused by the leaves of the kitchen exhaust fan becoming hot due to friction and clogging. You can manually move the leaves back to their original positions.
If there is a problem with the coil of the kitchen exhaust fan, it can also cause heat. Typically, the coils are made of all copper. If it contains impurities, such as aluminum wires, it is more likely to get hot during operation, and the overall heat dissipation rate is relatively high.
The bearing housings at both ends of the motor are also an aspect that cannot be ignored. If the wear is severe and the bearing sinks, it will also cause friction and heat between the rotor and the stator. Therefore, we can dismantle the inside, check whether the position of the bearing housings at both ends of the motor has changed, and repair and fix it.
Products like fans work the same way. When the exhaust fan is working, it will pass a large current. When current passes through the fan, most of the electrical energy becomes mechanical energy that drives the rotation of the fan blades, and part of the electrical energy is consumed in the motor of the electric fan as thermal energy. Therefore, if the fan continues to work for a long time, it will cause the case to heat up and even burn your hands. If it is heated for a long time, it will burn out the motor. Therefore, after the fan has been working for a period of time, it should be stopped to allow it to dissipate heat.
This is generally not the case. The household exhaust fan itself has low power and low power consumption. The design of this exhaust fan motor can run continuously for 24 hours. The temperature rise of the exhaust fan motor is normal during operation, and there is a thermal fuse protection device inside the exhaust fan for protection. If it is often opened for a long time, it will mainly consume power. The automatic damage rate will be higher and the service life will be much shorter after a long time. Usually only public toilets will keep running, not at home.
