Door drive with a small high-performance motor unit
AssigneeDormakaba Deutschland GmbH
InventorsDennis Bertels, Martin Wagner, Dietmar Finis
Life of this patent
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Abstract
A door drive for arrangement on or in connection with a door system, whereby at least one leaf element of the door system is movable. The door drive includes a motor unit with a housing, in which a stator is stationarily received, and wherein a rotor is arranged so as to be rotationally-movable in the housing and includes an output shaft, wherein the output shaft can be brought into operative connection in a driving manner with the leaf element. The rotor includes a support body, on which receiving fields are formed, on which permanent magnets are adhered.
Claims12
A door drive for arrangement on or in connection with a door system, whereby at least one leaf element of the door system is movable, including a motor unit with a housing, in which a stator is stationarily received, and wherein a rotor is arranged so as to be rotationally-movable in the housing and includes an output shaft,
- wherein the output shaft is configured to be brought into operative connection in a driving manner with the leaf element,
- wherein the rotor includes a support body, on which receiving fields are formed, on which permanent magnets are adhered,
- wherein the rotor has an axis of rotation, wherein separating webs are formed between the receiving fields, which form a part of the circumferential area and extend parallel to the axis of rotation,
- wherein the receiving fields have a longitudinal extension running parallel to the axis of rotation between the separating webs and over their longitudinal edge are formed with overlay strips laterally adjoining the separating webs.
Dependencies are inferred from the claim text.