WO2001091271A1

WO2001091271A1 - Drive device for a door

Info

Publication number: WO2001091271A1
Application number: PCT/EP2001/003157
Authority: WO
Inventors: Andreas Finke; Heinz Kleyer; Christopher Nimsch
Original assignee: Dorma Gmbh + Co. Kg
Priority date: 2000-05-23
Filing date: 2001-03-20
Publication date: 2001-11-29
Also published as: DE10024502C1; AU4421301A

Abstract

The invention relates to a drive device for a door, which comprises a drive motor (9) with a rotor (15, 16, 30) and with a first coil (12), whereby the coil (12) is connected to a power element (19) via connecting lines (17). In addition, a control device (28) and a transmission device for transmitting the rotary motion of the rotor (15, 16, 30) into an opening motion or closing motion of the door are provided. The drive motor (9) also comprises a second coil (13), which is connected to a separate power element (22) via connecting lines (18). This enables an emergency operation (battery) (23) of the drive device to be maintained via the second coil (13) and the separate power element (22).

Description

Drive device for a door

description

The invention relates to a drive device for a door according to the preamble of patent claim 1.

For doors that z. B. are arranged in escape routes, it must be ensured that the door still opens even if a door drive fails. For this purpose, doors have been proposed which, in addition to a drive device, also have a rubber rope which is held under pretension. If the drive of the door fails, the element causing the pretensioning is released, so that the door is moved into its desired position by the rubber cable, i. H. open (escape route) or closed (security area) position.

A drive for a door is known from DE-199 13 996 A1, the drive motor device consisting of at least two drive motors. For driving the leaves of the door system, separate drive motors can be provided for each leaf or a mechanical interconnection of several drive motors can also be provided for one or more leaves. In order to ensure that if one of the motors fails, both wings are still driven in the sense of an emergency opening or closing, the control device of the door drive is designed so that a change in the operating state, i.e. in particular a malfunction that occurs, is automatically known and a possibly defective drive motor is electrically released from the drive motor device in order to continue the operation of the door system with the remaining drive motor or the remaining drive motors. An automatic door drive is known from DE-198 35 632 A1, which has a battery power source, via which the electric motor drive device can be driven if a mains power source fails. The electric motor drive device has at least two electric motors, each of which can be individually controlled and operated or can be jointly controlled and operated synchronously. Furthermore, a switchover device is provided, by means of which the electric motor control device can be connected to the battery power source, bypassing an output stage, and can be controlled in emergency operation.

The drive devices used in the described prior art are disadvantageous in that at least two separate electric motors are always present in order to operate the doors in an emergency. B. in escape routes or similar to ensure. This requires a relatively complicated structure, in particular also for controlling the motors in emergency operation.

It is therefore an object of the present invention to provide a drive device for a door which, with a simple structure and simple, quick assembly, ensures the operation of the door in an emergency situation.

The object of the invention is achieved by the features of patent claim 1. The subclaims show further advantageous refinements of the invention.

The provision according to the invention of a drive motor with a second winding (auxiliary winding) thus ensures that a redundant system for operating the door is provided without this two separate motors are necessary. For this purpose, a rotor of the drive motor is extended such that in addition to the usual first winding, the second auxiliary winding is also arranged around the rotor. As a result, the motor can either be controlled only via the first main winding or, in the event of a failure, only controlled via the auxiliary winding. Of course, in normal operation it is also possible for the drive motor to be controlled via both windings. Since the second winding is connected to a separate power unit via separate connection lines, it is not affected by faults. B. occur in the power section of the first winding.

The rotor is preferably designed such that it has a larger diameter at the areas where it is surrounded by the two windings than at the other areas. This enables the rotor to be stored in several places. Preferably, the rotor can also be supported between the first and second windings. This allows the rotor to run particularly smoothly.

The rotor preferably has a constant diameter. This is particularly advantageous with regard to production engineering circumstances, since the rotor can then be manufactured simply and inexpensively.

In order to ensure easy manufacture of the rotor, the rotor is preferably formed in one piece.

A central control device is preferably provided, which is connected to a first power unit for the first winding and a second power unit for the second winding. Here there the central control device sends control and regulation commands to the power units and receives feedback from them.

The second power section is preferably connected to an emergency power supply. This also ensures door operation in the event of a power failure or the like. should occur. The emergency power supply is particularly preferably designed as a rechargeable battery. The battery is preferably permanently charged during normal operation in order to have an optimal charge.

According to a further preferred embodiment of the invention, the drive motor is connected to a drive belt via a transmission in order to move the door. This enables simple and reliable operation of the door. The door is particularly preferably attached directly to the drive belt.

According to a preferred embodiment of the invention, the drive device is used in a sliding door. Two door wings are particularly preferably provided, one door wing being connected to a lower run of the drive belt and another door wing connected to an upper run of the drive belt. This ensures that the two door leaves are actuated evenly and synchronously.

The drive device is particularly preferably designed such that rotation monitoring of the rotor is carried out via the second winding in normal operation of the drive device.

At the same time, the common axis of the rotors is connected to an incremental encoder. This incremental encoder can preferably be connected to a Be front of the common housing attached. In order to securely mount the housing, a mounting bracket can be attached to the incremental encoder, which in addition to its actual mounting function also performs a protective function for the incremental encoder against damage.

According to the invention, a drive device for a door is thus provided, which provides a redundant drive device with only one drive motor. This enables a particularly inexpensive and compact drive device to be implemented. It is particularly advantageous in the embodiment according to the invention that only one transmission for transmitting the driving force to a drive belt such as. B. a toothed belt or the like is necessary.

The invention is reproduced below on the basis of schematically illustrated exemplary embodiments. It shows:

Figure 1 is a schematic front view of a two-leaf sliding door with an automatic drive according to the invention

Figure 2 is a schematic, partially sectioned side view of a drive device according to a first embodiment of the present invention and

FIG. 3: a partially sectioned, schematic side view of a drive device according to a second exemplary embodiment of the present invention,

Figure 4: mechanical structure of the invention. FIG. 1 shows the schematic structure of a two-leaf sliding door with a first door leaf 1 and a second door leaf 2. As shown in Figure 1, the two door panels 1, 2 are firmly connected with a drive belt. Here, the first door leaf 1 is fastened to a lower run 5 of the drive belt by means of a leaf connection 7. The second door leaf 2 is fastened to an upper run 4 of the drive belt by means of a leaf connection 6. The drive belt is driven by a drive motor 9 via a gear 8 and a driven roller 10. A deflection roller 3 is also provided.

In Figure 1, the partially open state of the two-leaf sliding door is shown. Since the two door leaves 1, 2 are connected directly to the drive belt via the wing connections 6, 7, they are actuated synchronously, so that a complex control device can be dispensed with.

In order to close the open door shown in FIG. 1, the upper run 4 is moved in the direction of the driven roller 10, or at the same time the lower run 5 in the direction of the deflection roller 3. As a result, the two door leaves 1, 2 move towards one another and the Passage is closed. This must be ensured, for example, if the door acts as a fire protection door to prevent the fire from being ignited by additional drafts in the event of a fire.

FIG. 2 shows a first exemplary embodiment of a drive device for a door according to the invention.

As shown in FIG. 2, the drive device comprises a first winding 12, a second winding 13 (auxiliary winding) and a rotor 15, 16, which are arranged in a common housing 29. The rotor is designed such that it has a first region 15, around which the first winding 12 is arranged, and on which the rotor has a larger, constant diameter. Furthermore, the rotor has a second region 16, which is surrounded by the second winding 13 and which also has a larger, constant diameter. The diameter of the first region 15 corresponds to the diameter of the second region 16.

As shown in FIG. 2, the rotor is supported at three points via bearings 14, a bearing 14 being arranged between the region 15 and the region 16 of the rotor. This allows the rotor to run particularly smoothly.

The first winding 12 is connected to a first power unit 19 via connecting lines 17. The second winding 13 is connected to a second power unit 22 via connecting lines 18. Furthermore, a central control device 28 is provided, which issues control and regulating commands to the first power unit 19 via a line 20 and receives feedback signals from the power unit 19 from the first power unit 19 via a return line 21. Furthermore, the second power unit 22 is also connected to the central control device 28 by lines 24, 25 for control and regulating commands and feedback.

As further shown in FIG. 2, the second power unit 22 is connected to an emergency power supply 23 via lines 26, 27. This emergency power supply can be designed, for example, as a rechargeable battery, which is kept in a constantly charged state during normal operation in order to be able to act as an energy source for emergency operation. This will the power section 22 is independent of the network operation and can also operate the drive motor 9 in the event of a network failure.

The operation of the drive device according to the invention is described below. In normal operation, the control device 28 issues control commands to the first power unit 19, and the drive device 9 is operated via the first winding 12 and the area 15 of the rotor. Since the rotor 15, 16 is rotatably mounted about an axis of rotation 11, the rotor 15, 16 rotates and the drive belt is moved via the gear 8 and the drive roller 10. As a result, the two wings 1, 2 of the sliding door open or close.

If, for example, the power unit 19 can no longer be operated due to a power failure, the central control device 28 automatically switches to the second power unit 22. The rotor 16 is actuated via the auxiliary winding 13 via the second power section 22. The power supply of the second power unit 22 is provided via the emergency power supply 23. Thus, the drive motor 9 is driven in this case by the auxiliary winding 13, so that actuation of the door is ensured even if the main drive system 12, 15, 19 fails. Since the areas 15 and 16 of the rotor lie on a common axis 11 and are connected to one another, only one gear 8 is required to transmit the driving force to the drive belt.

FIG. 3 shows a drive device according to a second exemplary embodiment of the present invention. The same or similar parts are denoted by the same reference numerals as in the first embodiment. The second exemplary embodiment essentially corresponds to the first exemplary embodiment. Therefore, only parts or areas described in detail that differ from the first embodiment.

As shown in FIG. 3, the drive device 9 consists of a first winding 12, a second winding 13 and a rotor 30, which are arranged in a common housing 29.

In contrast to the first exemplary embodiment, in the second exemplary embodiment the rotor 30 is designed as a cylindrical rotor, which rather has a constant diameter. As a result, the rotor 30 is only supported at bearing points 14 at its left or right end. This configuration of the rotor 30 ensures that the rotor 30 can be manufactured in a simple and inexpensive manner.

According to the first embodiment, the rotor 30 is connected to the drive belt via a transmission 8 and the drive roller 10 in order to actuate a door connected to the drive belt. According to the first embodiment, the windings 12 and 13 are connected to power units 19 and 22, which in turn are connected to a central control device 28. An emergency power supply 23 is also provided, which is connected to the second winding 13 via the second power part 22, and thereby creates an emergency operation of the drive motor 90.

The function of the drive motor of the second embodiment corresponds to that of the first embodiment. That is, in normal operation, the rotor 30 is operated via the first winding 12 and the power section 19. In emergency operation, the rotor 30 is operated via the second winding 13 and the power section 22. 4 shows the mechanical structure of a drive unit. The common housing 29 is delimited on one end by the gear 8 with an axis exit 31, which exits by 90 ° to the central axis 36 of the housing 29 and to which the driven roller 10 is fastened, and on the other end by an incremental encoder 32. The incremental encoder 32 is at an angle 33 , which is fastened to the incremental encoder 32 with screws 34, the angle 33 simultaneously serving to fasten the drive unit with the fastening bore 37 to the gear 8. Thus, the incremental encoder is simultaneously protected against external damage by the angle 33. The connectors 35 are used to connect the connecting lines 17, 18 to the power units 19, 22.

In summary, the present invention relates to a drive device for a door, which has a drive motor 9 with a rotor 15, 16, 30 and a first winding 12, the winding being connected to a power unit 19 via connecting lines 17. Furthermore, a control device 28 and a transmission device 8, 10, 4, 5 for transmitting the rotary movement of the rotor 15, 16, 30 into an opening movement or closing movement of the door 1, 2 are provided. The drive motor 9 further comprises a second winding 13, which is connected to a separate power unit 22 via connecting lines 18. In this case, emergency operation of the drive device via the second winding and the separate power unit 22 is maintained.

The preceding description of the exemplary embodiments according to the present invention is only for illustrative purposes and not for the purpose of restricting the invention. Are within the scope of the invention various changes and modifications are possible without departing from the scope of the invention and its equivalents.

reference numeral

1) Door leaf

2) Door leaf

3) pulley

4) upper run

5) lower strand

6) wing connection

7) Wing connection

8) Gear

9) Drive motor

10) driven roller

11) axis

12) motor winding (stator)

13) auxiliary winding

14) bearings

15) rotor (motor winding)

16) rotor (auxiliary winding)

17) Connection lines

18) Connection lines

19) Power section (motor winding)

20) Control and regulation command

21) Feedback

22) Power section (auxiliary winding)

23) Emergency power supply (battery)

24) feedback

25) Emergency supply control

26) Connection

27) feedback 28) central control

29) common housing

30) common rotor

31) Axle exit

32) Incremental encoder

33) Angle

34) screws

35) connector

36) Central axis

37) mounting hole

Claims

claims

1. Drive device for a door (1, 2), with

- A drive motor (9) with a rotor (15, 16; 30) and a first winding (12) which is connected to a power unit (19) via connecting lines (17),

- A control device (28) and

- A transmission device (8, 10, 4, 5) for transmitting the rotary movement of the rotor (15, 16; 30) in an opening

/ Closing movement of the door leaves (1, 2),

characterized,

that the rotor (15, 16; 30) has a second winding (13) which is connected to a separate power unit (22) via connecting lines (18).

2. Drive device according to claim 1, characterized in that the rotor has a larger diameter at regions (15, 16) where it is surrounded by the windings (12, 13) than at other regions.

3. Drive device according to claim 1, characterized in that the rotor (30) has a constant diameter.

4. Drive device according to one of claims 1 to 3, characterized in that the rotor (15, 16; 30) is formed in one piece.

5. Drive device according to one of claims 1 to 4, characterized in that the first winding (12) and the second winding (13) and the rotor (15, 16, 30) are housed in a common housing (29).

5

6. Drive device according to claim 5, characterized in that on the housing (29) on one end the gear (8) and on the other an incremental encoder (32) are flanged.

10 7. Drive device according to claim 6, characterized in that ^• - that the incremental encoder (32) by a mounting bracket

(33) is protected from damage.

8. Drive device according to one of claims 1 to 7, characterized 15 indicates that a central control unit (28) is provided, which with the first power section (19) and the second Lei-

, , , Stungteil (22) is connected.

9. Drive device according to one of claims 1 to 8, characterized 20 indicates that the second power part (22) is connected to an emergency power supply (23).

10. Drive device according to claim 8, characterized in that the emergency power supply is designed as a battery.

25

11. Drive device according to one of claims 1 to 11, characterized in that the rotor (15, 16; 30) via a gear (8) and a roller (10) is connected to a drive belt.

12. Drive device according to claim 11, characterized in that the door leaves (1, 2) are attached directly to the drive belt.

13. Drive device according to claim 11 or 12, characterized in that two door leaves are provided, one door leaf

(1) with a lower run (5) of the drive belt and another door wing (2) with an upper run (4) of the drive belt.

14. Drive device according to one of claims 1 to 13, characterized in that rotation monitoring of the rotor (15, 16; 30) takes place via the second winding (13).

15. Sliding door with a drive device according to one of claims 1 to 14.

16. Sliding door according to claim 15, characterized in that the sliding door is used in escape and rescue routes.