# US 2014/0197718 A1 · Low-profile, disk-shaped drive unit for a revolving door > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197718 A1 - Document ID: US20140197718A1 - Status: Published application - Kind: A1 - Application number: 14/154,423 - Filed: 2014-01-14 - Published: 2014-07-17 - Earliest claimed: 2013-01-14 - Assignees: Dormakaba Deutschland GmbH - Inventors: Sven BUSCH; Stefan KISSLER; Thomas SCHMITZ - Web page: https://patentgrep.com/patent/US20140197718A1 ## CPC - H02K 1/2791: Surface mounted magnets; Inset magnets - E05F 15/608: for revolving wings - H02K 11/30: Structural association with control circuits or drive circuits - E05D 15/02: for revolving wings - E05Y 2800/106: Lighting - E05Y 2900/132: Doors - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract A drive unit for a revolving door with an electronically commutated multipole motor having a quantity of coil elements and a quantity of magnet elements. The multipole motor has a flat base structure and a disk-shaped or cup-shaped stator part arranged at a stationary structural component part. A disk-shaped or cup-shaped rotor part is arranged in a plane-parallel manner with respect to the stator part and can be drivingly connected to a turnstile of the revolving door. The coil elements and the magnet elements are received in an area between the stator part and the rotor part. ## Claims ### Claim 1 A drive unit for a revolving door (100) comprising: an electronically commutated multipole motor (1) having a flat base structure comprising: a plurality of coil elements (10); a plurality of magnet elements (11); a disk-shaped or cup-shaped stator part (12) configured to be arranged at a stationary structural component part (13); and a disk-shaped or cup-shaped rotor part (14) arranged in a plane-parallel with respect to the stator part (12) configured to be drivingly connected to a turnstile (15) of the revolving door (100), wherein the coil elements (10) and the magnet elements (11) are received in an area between the stator part (12) and the rotor part (14). ### Claim 2 (depends on 1) The drive unit according to claim 1, wherein the flat base structure of the electronically commutated multipole motor (1) is substantially round and a ratio of a height of the flat base structure to a diameter of the flat base structure is at least 1:3. ### Claim 3 (depends on 1) The drive unit according to claim 1, wherein the multipole motor (1) further comprises a control unit (16) received between the stator part (12) and the rotor part (14). ### Claim 4 (depends on 1) The drive unit according to claim 1, wherein the rotor part (14) is bearing-mounted at the stator part (12) to be rotatable around a drive axis (17). ### Claim 5 (depends on 1) The drive unit according to claim 1, wherein the coil elements (10) are arranged on a radially inner side relative to the magnet elements (11). ### Claim 6 (depends on 1) The drive unit according to claim 1, wherein the coil elements (10) have wound bodies (10a) arranged at the stator part (12) that extend substantially radially between the stator part (12) and the rotor part (14). ### Claim 7 (depends on 1) The drive unit according to claim 1, wherein the coil elements (10) are arranged in a stationary manner at the stator part (12), and the rotor part (14) is cup shaped with a cup surface portion (20), the magnet elements (11) arranged on an inner side of the cup shaped rotor part. ### Claim 8 (depends on 1) The drive unit according to claim 1, wherein the rotor part (14) is configured to be connected to revolving wings (21) of the turnstile (15). ### Claim 9 (depends on 1) The drive unit according to claim 1, further comprising an output shaft (23) connected to the rotor part (14) in a torsionally rigid manner that extends in a drive axis (17); and an adapter element (24) that connects the turnstile (15) to the output shaft (23). ### Claim 10 (depends on 1) The drive unit according to claim 1, wherein the multipole motor (1) has at least one rotary feedthrough (25) by which a control unit (16) is electrically connected to an element rotating with the rotor part (14) by at least one electric lead (26). ### Claim 11 (depends on 1) The drive unit according to claim 1, wherein the electronically commutated multipole motor (1) is arranged to be visible at an underside of the structural component part (13). ### Claim 12 (depends on 1) An arrangement of a revolving door comprising: the drive unit according to claim 1; and a receiving vessel (27) configured to receive the multipole motor (1), wherein the drive unit is arranged at least partially recessed in the structural component part (13). ### Claim 13 (depends on 12) The arrangement according to claim 12, wherein the drive unit is integrated in the revolving door (100) on a ceiling side, and at least one decorative element (28) is retained at least partially by the receiving vessel (27) and is arranged at an underside of the structural component part (13). ### Claim 14 (depends on 1, 12) A revolving door (100) having a drive unit according to claim 1 and an arrangement of a drive unit according to claim 12. ### Claim 15 A method for the arrangement of a drive unit, comprising: providing a drive unit; providing a receiving vessel (27) configured to receive the drive unit; arranging the drive unit at the receiving vessel (27) before or after: arranging the receiving vessel (27) at or in a structural component part (13). ### Claim 16 (depends on 15) The method according to claim 15, further comprising connecting a turnstile (15) to a rotor part (14) of a multipole motor (1) of the drive unit. ### Claim 17 (depends on 2) The drive unit according to claim 2, wherein the ratio of the height of the flat base structure to a diameter of flat base structure is at least 1:8. ### Claim 18 (depends on 4) The drive unit according to claim 4, wherein at least one axial bearing (18) and/or at least one radial bearing (10) is arranged between the stator part (12) and the rotor part (14). ### Claim 19 (depends on 8) The drive unit according to claim 8, wherein the revolving wings (21) are connected directly to an outer surface (22) of the rotor part (14). ### Claim 20 (depends on 16) The method according to claim 16, further comprising connecting revolving wings (21) of the turnstile (15) to the rotor part (14).