Low-profile, disk-shaped drive unit for a revolving door

Patent metadata

Field	Value
Publication number	US-10148144-B2
Application number	US-201414154423-A
Country	US
Kind code	B2
Filing date	Jan 14, 2014
Priority date	Jan 14, 2013
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

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.

First claim

What is claimed is:

1. An arrangement of a revolving door ( 100 ) comprising:
a drive unit 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 )
wherein the multipole motor further includes a control unit received between the stator part and the rotor part; and

a receiving vessel ( 27 ) configured to receive the multipole motor ( 1 ), wherein the drive unit is arranged at least partially recessed in the stationary structural component part ( 13 ).

2. The arrangement 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.

3. The arrangement 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 ).

4. The arrangement according to claim 1 , wherein the coil elements ( 10 ) are arranged on a radially inner side relative to the magnet elements ( 11 ).

5. The arrangement according to claim 1 , wherein the coil elements ( 10 ) have wound bodies ( 10 a ) arranged at the stator part ( 12 ) that extend substantially radially between the stator part ( 12 ) and the rotor part ( 14 ).

6. The arrangement 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.

7. The arrangement according to claim 1 , wherein the rotor part ( 14 ) is configured to be connected to revolving wings ( 21 ) of the turnstile ( 15 ).

8. The arrangement according to claim 1 , further comprising:
an output shaft ( 3 ) 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 ).

9. The arrangement 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 ).

10. The arrangement 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 ).

11. The arrangement according to claim 1 , 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 ).

12. A revolving door ( 100 ) having an arrangement of a drive unit according to claim 1 .

13. The arrangement 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.

14. The arrangement according to claim 3 , 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 ).

15. The arrangement according to claim 7 , wherein the revolving wings ( 21 ) are connected directly to an outer surface ( 22 ) of the rotor part ( 14 ).

Assignees

• Dorma Deutschland Gmbh
• Dormakaba Deutschland Gmbh

Inventors

• Busch Sven
• Kissler Stefan
• Schmitz Thomas

Classifications

• H02K11/30

  Structural association with control circuits or drive circuits · CPC title

• E05Y2800/106

  Lighting · CPC title

• E05F15/608 Primary

  for revolving wings · CPC title

• E05Y2900/132

  Doors · CPC title

• H02K1/2786 Primary

  Outer rotors · CPC title