Patent ID: 11879469
Assignee: I.M.E. INDUSTRIA MOTORI ELETTRICI S.P.A.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 0:
1. A flush-mounted fan system of an industrial ventilation system, the fan system comprising:
a fan device comprising a blade group commandable in rotation about a main axis (X-X) and an electric motor group extending along the main axis (X-X) comprising:
i) a drive shaft extending along the main axis (X-X) having a blade end to which the blade group is solidly connected;
ii) an electric motor comprising a rotor of an external rotor type and a stator, wherein the rotor is operatively connected to the drive shaft; and
iii) an electronic command device of the electric motor positioned along the main axis (X-X),
wherein the electric motor comprises a motor body, which is defining along the main axis (X-X) a motor casing housing the electric motor and a command casing housing the electronic command device, wherein the motor casing is positioned between the blade group and the command casing, wherein the electric motor further comprises a rotor bell on which the rotor is housed, wherein the rotor bell is housed in the motor casing, and wherein the drive shaft is solidly connected to the rotor bell such that a rotation of the rotor bell corresponds to a rotation of the drive shaft,
wherein the motor casing comprises a first shell, a second shell, at least one first gasket, and at least one second gasket, wherein the first shell and the second shell are sealingly engaged with each other via the at least one first gasket and the at least one second gasket and define a motor chamber in which the rotor and the stator are contained, wherein the first shell surrounds the rotor bell, wherein the command casing is coupled to the second shell, and wherein the at least one first gasket and the at least one second gasket restrict entry of debris and moisture into the motor casing; and

a flush-mounted frame housing the fan device, the frame comprising:
m) a flush-mounted box defining a through opening identifying an opening center (C); and
n) a bracket group housed in the through opening supporting the fan device in such a way that the main axis (X-X) and the opening center (C) correspond.