Easy-to-change frequency changer air filtering-net device

The utility model discloses an air-filtering net device for a transducer, which is easy to be exchanged; the utility model mainly consists of a front plate and a filter net support machine. The front plate is provided with a ventilating hole, which is used for fixing the front plate on a first fixing device of the transducer and is also used for fixing a second fixing device of the filter net support organ. The filter net support organ is a frame; a filter net is fixed on the frame. When the filter net wants to be cleaned, the front plate is taken down from the transducer firstly, and then the filter net support organ is also dismounted from the front plate. The whole installation and dismounting process does not need cut off the electricity, or stop the electricity. So the operation is simple, convenient and safe.