Motor and fan manufacturer Ziehl-Abegg is breaking into new market segments extending motor size and introducing new impellers.
This completion of its product range of energy-saving EC motors accompanies the introduction of new impellers. The combination of impeller and EC motor reduces noise and power consumption compared to the current market standard.
Commenting on the rising demand for fans for residential ventilation, product manager Moritz Kramer said better household insulation increases the need for controlled ventilation.
Krämer said this requires small fans that provide continuous reliable operation for many years. With the EC055 motor size, Ziehl-Abegg can now apply its expertise in the construction of efficient electric motors in this application area.
The small EC fans are also used for heat pumps for water heating, in electronic cooling and in refrigeration. "Whereas in electronic cooling the focus is on power consumption, in residential applications we also have to consider noise generation", Krämer said.
“With this in mind, Ziehl-Abegg has designed a new centrifugal impeller for this application with a special backward curved blade design.
"This centrifugal fan is the product of our decades of experience in developing optimum blade geometry. The new centrifugal impellers can of course be used in other areas, too.”
In the output range of 100 watts to 6 kW, there are only a few manufacturers of energy-saving motors in the world who can provide the full spectrum of products.
With the so-called EC055 Ziehl-Abegg has brought a product to market that combines better performance and noise characteristics with standard installation dimensions. EC motors from Ziehl-Abegg are also known as “ECblue”.
EC motors are direct current external rotor motors that are equipped with permanent magnets. When the motor turns, the electronic circuit determines the position of the rotor, which is then used to control the motor winding.
This control is known as commutation, with the EC in EC motor standing for "electronically commutated".