Ventilation device for a ventilation, heating and/or air-conditioning unit
A ventilation equipment and airflow technology, which is applied in heating/cooling equipment, air handling equipment, cooling/ventilation/heating transformation, etc., can solve the problems of occupying ventilation equipment space, restricting, and reducing the size of ventilation equipment, so as to save costs, Guarantee reliability and ensure the effect of function
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[0035] figure 1 A ventilation device 1 according to the invention is illustrated. Such a ventilation device comprises a support 2 in which an electric motor 3 is accommodated. According to an exemplary embodiment, such a motor is of the brush and commutator type, but the invention preferably relates to a brushless motor.
[0036] An electric motor 3 rotationally drives an impeller 4 comprising a disc 5 shown in dashed lines in the figure. Since the shaft of the motor is coupled to the disc 5, this disc forms the means for driving the impeller. Such a disk is, for example, solid in the sense that its walls have no openings. According to another alternative, such a disc 5 has a plurality of orifices.
[0037] On the periphery of such a disc, a plurality of vanes 6 extend in a direction parallel to the direction of extension of the motor shaft. The end of each blade is attached via a band 7 . Such an impeller 4 thus forms a squirrel-cage impeller, also known as a radial tur...
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