EP3652100B1 - Automatic door, more particularly automatic lift door - Google Patents

Automatic door, more particularly automatic lift door Download PDF

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Publication number
EP3652100B1
EP3652100B1 EP18731991.8A EP18731991A EP3652100B1 EP 3652100 B1 EP3652100 B1 EP 3652100B1 EP 18731991 A EP18731991 A EP 18731991A EP 3652100 B1 EP3652100 B1 EP 3652100B1
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EP
European Patent Office
Prior art keywords
electric motor
door
temperature
closing holding
automatic
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EP18731991.8A
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German (de)
French (fr)
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EP3652100A1 (en
Inventor
Alexander Möstel
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Franz Xaver Meiller Fahrzeug und Maschinenfabbrik GmbH and Co KG
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Franz Xaver Meiller Fahrzeug und Maschinenfabbrik GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/143—Control systems or devices electrical

Definitions

  • Automatic doors of the type considered here are known in many variants. These are doors whose door leaves are moved between their door closed position and their door open position by means of controlled motor drives. In particular, they can be designed as automatic sliding doors, revolving doors, lifting doors or lamellar doors. They can differ in size and environment. For example, it can be industrial doors, hangar doors, garage doors, etc. On the other hand, there are also small automatic doors, such as passenger elevator doors, etc.
  • Automatic outdoor doors can sometimes or constantly be exposed to low temperatures well below the freezing point of 0 ° C in their application environment. At such low temperatures it can become too A sluggishness of the door drive device come, for example due to the hardening effects of bearing lubrication, gear lubricants or also due to thermal distortion of guides, rollers, bearings, etc., which can lead to disruptions in the automatic operation of the door. In order to prevent such disturbances, proposals have already been made to provide electrically operated heating strips in the areas of the door which are particularly sensitive to temperature. A door header with components of the door drive device accommodated therein is particularly suitable as such an area.
  • the door header often has transverse guides for the door leaf arrangement above the door opening.
  • the object of the present invention is to provide an automatic door of the type mentioned at the outset which enables reliable operation even at low temperatures even without separate heating means such as heating tapes or the like.
  • the automatic door with the features mentioned at the beginning has at least one temperature sensor for detecting a temperature at a reference point in the area - and / or in the vicinity of the automatic door and for outputting its temperature measurement information to the control device, the Control device is set up to control the electrical power to be provided for generating the closing holding force of the electric motor as a function of the respective temperature information of the temperature sensor, so that the electric power of the electric motor as the measurement temperature of the temperature sensor falls, at least when it falls below a certain measuring temperature increases - and the electrical power of the electric motor decreases again when the measuring temperature rises again.
  • the present invention is based on the idea of heating the engine environment by generating heat loss from the electric motor when generating the closing holding force, specifically as a function of the measuring temperature of the temperature sensor. The colder this measurement temperature, the greater the amount of heat loss generated, at least within certain limits. If the measurement temperature increases again after the temperature sensor has cooled down, the control device can also reduce the electrical power of the electric motor again in order to achieve the most economical operation of the electric motor.
  • Temperature-sensitive elements of the drive device should be sufficiently well thermally coupled to the electric motor in order to be able to benefit from its waste heat.
  • the electric motor and further components of the drive device are preferably accommodated in at least one cavity of the housing, for example in a door transom forming the housing.
  • the housing should be thermally insulated so that the waste heat supplied by the electric motor is accumulated as efficiently as possible within the housing area in order to heat the temperature-sensitive components of the drive device that are present there and thus keep them at favorable operating temperatures.
  • the control device is set up to vary the closing holding current to be provided to generate the closing holding force of the electric motor in order to control the electrical power of the electric motor as a function of the respective temperature information from the temperature sensor, so that the closing holding current of the electric motor decreases as the measurement temperature falls of the temperature sensor increases at least when the temperature falls below a certain value - and the closing holding current of the electric motor increases again increasing measurement temperature decreases again.
  • the electric motor can be, for example, a low-voltage direct current motor that works with an operating voltage in the range from 12 to 50 V, for example 24 V. The currents used here to generate heat loss from the electric motor can be controlled at these low voltages.
  • the electrical power to be provided for generating the closing holding force of the electric motor can be varied in a range between 40 W and 120 W according to one embodiment of the invention.
  • the closing holding current to be provided for generating the closing holding force of the electric motor can be varied in a range between 1.5 A and 10 A.
  • the control device is preferably set up to hold the closing holding current of the electric motor at an essentially constant value when the measuring temperature of the temperature sensor exceeds a certain limit value. In this way, it is achieved that at non-critical temperatures of the drive device, an energy-saving electric motor operation with little heat loss is possible.
  • the at least one temperature sensor is preferably arranged on the electric motor and accommodated with it within a door fender.
  • the temperature of the electric motor can be continuously monitored and, in the context of the present invention, regulated to a favorable setpoint value or to a favorable setpoint value interval.
  • the temperature sensor can also be provided elsewhere, for example outside the automatic door, for example to detect the ambient temperature so that the power supply to the electric motor is controlled as a function of the outside temperature.
  • both a temperature sensor provided on the electric motor and at least one further temperature sensor, such as an outside temperature sensor, are provided and are in data transmission connection with the control device, so that the control device takes into account the measured values of both temperature sensors when controlling the electric motor.
  • a car door of an elevator may be mentioned as a preferred exemplary embodiment of the invention.
  • the automatic sliding door shown in the figures is a telescopic sliding door with a frame and a door leaf arrangement made up of two door leaves 3, 5, which during the opening process and the closing process of the telescopic sliding door are aligned parallel to one another in two parallel sliding planes E3, E5 and move horizontally along guide rails .
  • a drive device 7 is used to open or close the telescopic sliding door when requested, for example by pressing a button Figure 1a positioned on the right and according to Figure 1b
  • the door leaf positioned in the shifting plane E3 a little further back moves faster than the door leaf 5 positioned in the shifting plane E5 a little further to the front . moved twice as fast as the other door leaf.
  • the two door leaves 3, 5 are orthogonal to the displacement planes E3, E5 at a small distance from one another, so that they move into the closed position according to FIG. 1 without touching one another along the displacement planes E3, E5 Figure 1a and can be moved into the open position 2a.
  • the automatic operation of the door takes place under the control of an electronic control device 25, which is accommodated together with the drive device 7 in a cavity 24 of the door header 26.
  • the control device 25 generates control and switching commands for an electric motor 27 in order to supply it with electrical drive energy in a controlled manner and to specify the respective direction of rotation of the motor.
  • the door drive device 7 shown in greatly simplified form in the figures is a cable drive in which the electric motor 27 drives a pulley 31 to the right above the door opening 4 via a transmission belt 29 or the like, the pulley 31 being two cylindrical concentric to the pulley axis Has pulley sections 33, 35, of which the pulley section 33 has a larger diameter than the pulley section 35.
  • Each of the two pulley sections 33, 35 is wrapped by a respective endless pull cable 37, 39 and is used to drive and deflect it.
  • a second pulley 41 is arranged to the left above the door opening 4 and also has two cylindrical pulley sections 43, 45 with correspondingly different diameters, which are arranged concentrically to their pulley axis and which are looped around by the endless pull cables 37, 39 and serve to deflect them.
  • the door leaf 3, which runs faster, is connected to the lower strand 36 of the endless pull rope 37, which runs around the pulley sections 33, 43 with a larger diameter, via a driver element 47, whereas the other door leaf 5 is connected to the lower run 38 of the endless pull rope 39, which runs around the pulley sections 35, 45 is connected via a driver element 49.
  • the electric motor 27 is controlled in such a way that it causes the deflection roller 31 to rotate clockwise (based on Figure 1a ) drives, the driver elements 47, 49 move with the lower strands 36, 38 in Figure 1a to the left, so that the door leaves 3, 5 are also shifted to the left in the door opening movement direction.
  • the pull rope 37 revolves around the pulley sections 33, 43 with the larger diameters, it has a greater circulating speed than the other pull rope 39, which revolves around the pulley sections 35, 45 with the smaller diameters. Accordingly, the door leaf moved by the pull rope 37 is also displaced faster in the door closing direction of movement and in the door opening direction of movement than the door leaf 5 moved by the pull rope 39.
  • the control device 25 controls the electric motor 27 to rotate clockwise or counterclockwise, the door leaves are 3, 5 shifted in the door closing movement direction or in the door opening movement direction.
  • a temperature sensor 50 for detecting the temperature on the electric motor 27 is located directly on the electric motor 27 in the cavity 24 of the door header 26.
  • the temperature sensor 50 transmits its temperature measurement information to the control device 25 via a corresponding data transmission connection.
  • the control device 25 If the door is in the closed state and the temperature measured value (measuring temperature) of the sensor 50 is below a certain temperature value, for example 5 ° C., the control device 25 provides a larger electrical operating current for the electric motor 27 with the voltage of, for example, 24 VDC kept constant, by varying an output current limit of the relevant current source accordingly.
  • the increase in current leads to heating of the electric motor 27 and its surroundings.
  • the control device 25 ensures a reduction in the electric current supplied to the electric motor 27, so that correspondingly less heat is emitted by the electric motor 27 and a further increase in temperature is prevented as far as possible becomes.
  • a further temperature sensor is identified by 52, which is located outside the door panel 26 and can provide information about the temperature outside the automatic door, which can also be taken into account by the control device 25 when controlling the motor.
  • the door header 26 is lined with a thermal insulation material 54 in order to keep a heat exchange between the drive device 2 and the door environment low.
  • pull cable drive device 7 explained above was presented merely as an example as a suitable drive device for an automatic door according to the invention.
  • Other drive devices such as spindle drives, linear motor drives, toothed belt drives, etc., can also be used as door drives.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Description

Die Erfindung betrifft eine automatische Tür, insbesondere eine automatische Aufzugtür, mit

  • wenigstens einer Türblattanordnung, welche zwischen einer Türschließstellung und einer Türöffnungsstellung bewegbar gelagert und elektromotorisch antreibbar ist,
  • einer zumindest teilweise in einem Gehäuse untergebrachten Antriebseinrichtung mit einem steuerbaren Elektromotor als Antriebsmittel für die Türblattanordnung und
  • einer Steuereinrichtung zur Steuerung des Elektromotors, wobei der Elektromotor mittels der Steuereinrichtung dazu ansteuerbar ist, eine Schließhaltekraft auf die Türblattanordnung auszuüben, wenn diese in ihrer Schließstellung ist.
The invention relates to an automatic door, in particular an automatic elevator door with
  • at least one door leaf arrangement which is movably mounted between a door closed position and a door open position and can be driven by an electric motor,
  • a drive device which is at least partially accommodated in a housing and has a controllable electric motor as drive means for the door leaf arrangement and
  • a control device for controlling the electric motor, the electric motor being controllable by means of the control device to exert a closing holding force on the door leaf arrangement when it is in its closed position.

Automatische Türen der hier betrachteten Art sind in vielen Varianten bekannt. Es handelt sich dabei um Türen, deren Türblätter mittels gesteuerter motorischer Antriebe zwischen ihrer Türschließstellung und ihrer Türöffnungsstellung bewegt werden. Sie können insbesondere als automatische Schiebetüren, Drehtüren, Hubtüren oder Lamellentüren ausgebildet sein. Sie können sich in Größe und Umgebung durchaus unterscheiden. Beispielsweise kann es sich dabei um Industrietore, Hangartore, Garagentore usw. handeln. Andererseits gibt es auch kleine automatische Türen, etwa Türen von Personenaufzügen usw.Automatic doors of the type considered here are known in many variants. These are doors whose door leaves are moved between their door closed position and their door open position by means of controlled motor drives. In particular, they can be designed as automatic sliding doors, revolving doors, lifting doors or lamellar doors. They can differ in size and environment. For example, it can be industrial doors, hangar doors, garage doors, etc. On the other hand, there are also small automatic doors, such as passenger elevator doors, etc.

Beispiele automatischen Türen sind in Dokumente EP 3 091 163 A2 , EP 2 993 296 A1 und US 6 392 537 B1 offenbart.Examples of automatic doors are in documents EP 3 091 163 A2 , EP 2 993 296 A1 and U.S. 6,392,537 B1 disclosed.

Insbesondere offenbart EP 3 091 163 A2 den Oberbegriff des Anspruchs 1.In particular disclosed EP 3 091 163 A2 the preamble of claim 1.

Automatische Außenbereichstüren können in ihrer Anwendungsumgebung bisweilen oder auch ständig tiefen Temperaturen weit unterhalb des Gefrierpunktes von 0 °C ausgesetzt sein. Bei derart tiefen Temperaturen kann es zu einer Schwergängigkeit der Türantriebseinrichtung kommen, etwa aufgrund von Aushärtungseffekten von Lagerschmierungen, Getriebeschmiermitteln oder auch aufgrund von thermischem Verzug von Führungen, Laufrollen, Lagern usw., was zu Störungen des Automatikbetriebs der Tür führen kann. Um solche Störungen zu unterbinden, sind bereits Vorschläge gemacht worden, elektrisch betreibbare Heizbänder in den Bereichen der Tür vorzusehen, welche besonders temperaturempfindlich sind. Als ein solcher Bereich kommt insbesondere ein Türkämpfer mit darin untergebrachten Komponenten der Türantriebsvorrichtung infrage. Dabei handelt es sich um eine Traverse, die sich entlang dem oberen Rand der Türöffnung erstreckt und Hohlraumbereiche aufweist, in denen oft Komponenten der Türantriebseinrichtung inclusive Elektromotor und Getriebeelementen untergebracht sind. Insbesondere bei automatischen Schiebetüren weist der Türkämpfer häufig oberhalb der Türöffnung quer verlaufende Führungen der Türblattanordnung auf.Automatic outdoor doors can sometimes or constantly be exposed to low temperatures well below the freezing point of 0 ° C in their application environment. At such low temperatures it can become too A sluggishness of the door drive device come, for example due to the hardening effects of bearing lubrication, gear lubricants or also due to thermal distortion of guides, rollers, bearings, etc., which can lead to disruptions in the automatic operation of the door. In order to prevent such disturbances, proposals have already been made to provide electrically operated heating strips in the areas of the door which are particularly sensitive to temperature. A door header with components of the door drive device accommodated therein is particularly suitable as such an area. This is a traverse that extends along the upper edge of the door opening and has cavity areas in which components of the door drive device, including the electric motor and gear elements, are often housed. In the case of automatic sliding doors in particular, the door header often has transverse guides for the door leaf arrangement above the door opening.

Aufgabe der vorliegenden Erfindung ist es, eine automatische Tür der eingangs genannten Art bereitzustellen, welche auch ohne gesonderte Heizmittel wie etwa Heizbänder oder dgl. einen zuverlässigen Betrieb auch bei tiefen Temperaturen ermöglicht.The object of the present invention is to provide an automatic door of the type mentioned at the outset which enables reliable operation even at low temperatures even without separate heating means such as heating tapes or the like.

Zur Lösung dieser Aufgabe wird vorgeschlagen, dass die automatische Tür mit den eingangs genannten Merkmalen wenigstens einen Temperatursensor zur Erfassung einer Temperatur an einem Bezugspunkt im Bereich - oder/und in der Umgebung der automatischen Tür und zur Abgabe seiner Temperaturmessinformationen an die Steuereinrichtung aufweist, wobei die Steuereinrichtung dazu eingerichtet ist, die für die Erzeugung der Schließhaltekraft des Elektromotors bereitzustellende elektrische Leistung in Abhängigkeit von der jeweiligen Temperaturinformation des Temperatursensors zu steuern, so dass die elektrische Leistung des Elektromotors mit sinkender Messtemperatur des Temperatursensors zumindest ab Unterschreitung einer bestimmten Messtemperatur zunimmt - und die elektrische Leistung des Elektromotors bei wiederansteigender Messtemperatur wieder abnimmt.To solve this problem, it is proposed that the automatic door with the features mentioned at the beginning has at least one temperature sensor for detecting a temperature at a reference point in the area - and / or in the vicinity of the automatic door and for outputting its temperature measurement information to the control device, the Control device is set up to control the electrical power to be provided for generating the closing holding force of the electric motor as a function of the respective temperature information of the temperature sensor, so that the electric power of the electric motor as the measurement temperature of the temperature sensor falls, at least when it falls below a certain measuring temperature increases - and the electrical power of the electric motor decreases again when the measuring temperature rises again.

Der vorliegenden Erfindung liegt die Idee zugrunde, durch Erzeugung von Verlustwärme des Elektromotors bei Erzeugung der Schließhaltekraft die Motorumgebung zu erwärmen, und zwar in Abhängigkeit von der Messtemperatur des Temperatursensors. Je kälter diese Messtemperatur ist, desto größer der Betrag der erzeugten Verlustwärme zumindest innerhalb bestimmter Grenzen. Nimmt die Messtemperatur nach einer betreffenden Abkühlung des Temperatursensors wieder zu, so kann die Steuereinrichtung auch die elektrische Leistung des Elektromotors wieder reduzieren, um einen möglichst sparsamen Betrieb des Elektromotors zu erreichen.The present invention is based on the idea of heating the engine environment by generating heat loss from the electric motor when generating the closing holding force, specifically as a function of the measuring temperature of the temperature sensor. The colder this measurement temperature, the greater the amount of heat loss generated, at least within certain limits. If the measurement temperature increases again after the temperature sensor has cooled down, the control device can also reduce the electrical power of the electric motor again in order to achieve the most economical operation of the electric motor.

Temperaturempfindliche Elemente der Antriebseinrichtung sollten thermisch hinreichend gut an den Elektromotor angekoppelt sein, um von dessen Abwärme profitieren zu können. Vorzugsweise sind der Elektromotor und weitere Komponenten der Antriebseinrichtung in wenigstens einem Hohlraum des Gehäuses, z.B. in einem das Gehäuse bildenden Türkämpfer untergebracht. Das Gehäuse sollte thermisch gedämmt sein, so dass die von dem Elektromotor gelieferte Abwärme möglichst effizient innerhalb des Gehäusebereichs gestaut wird, um dort vorhandene temperaturempfindliche Komponenten der Antriebseinrichtung zu erwärmen und somit auf günstigen Betriebstemperaturen zu halten.Temperature-sensitive elements of the drive device should be sufficiently well thermally coupled to the electric motor in order to be able to benefit from its waste heat. The electric motor and further components of the drive device are preferably accommodated in at least one cavity of the housing, for example in a door transom forming the housing. The housing should be thermally insulated so that the waste heat supplied by the electric motor is accumulated as efficiently as possible within the housing area in order to heat the temperature-sensitive components of the drive device that are present there and thus keep them at favorable operating temperatures.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist die Steuereinrichtung dazu eingerichtet, den zur Erzeugung der Schließhaltekraft des Elektromotors bereitzustellenden Schließhaltestrom zu variieren, um die elektrische Leistung des Elektromotors in Abhängigkeit von der jeweiligen Temperaturinformation des Temperatursensors zu steuern, so dass der Schließhaltestrom des Elektromotors mit sinkender Messtemperatur des Temperatursensors zumindest ab Unterschreitung einer bestimmten Messtemperatur zunimmt - und der Schließhaltestrom des Elektromotors bei wieder ansteigender Messtemperatur wieder abnimmt. Bei dem Elektromotor kann es sich beispielsweise um einen Niedervolt-Gleichstrommotor handeln, der mit einer Betriebsspannung aus dem Bereich von 12 bis 50 V, beispielsweise 24 V, arbeitet. Die hier zur Erzeugung von Verlustwärme des Elektromotors angewandten Ströme sind bei diesen geringen Spannungen beherrschbar.According to a preferred embodiment of the invention, the control device is set up to vary the closing holding current to be provided to generate the closing holding force of the electric motor in order to control the electrical power of the electric motor as a function of the respective temperature information from the temperature sensor, so that the closing holding current of the electric motor decreases as the measurement temperature falls of the temperature sensor increases at least when the temperature falls below a certain value - and the closing holding current of the electric motor increases again increasing measurement temperature decreases again. The electric motor can be, for example, a low-voltage direct current motor that works with an operating voltage in the range from 12 to 50 V, for example 24 V. The currents used here to generate heat loss from the electric motor can be controlled at these low voltages.

Es kommen als Elektromotoren für die Erfindung jedoch nicht nur Gleichstrommotoren infrage, sondern auch effektivspannungsmäßig angepasste Wechselstrom- und Drehstrommotoren.However, not only direct current motors come into consideration as electric motors for the invention, but also alternating current and three-phase motors with effective voltage adapted.

Die für die Erzeugung der Schließhaltekraft des Elektromotors bereitzustellende elektrische Leistung kann gemäß einer Ausführungsform der Erfindung in einem Bereich zwischen 40 W und 120 W variierbar sein.The electrical power to be provided for generating the closing holding force of the electric motor can be varied in a range between 40 W and 120 W according to one embodiment of the invention.

Gemäß einer Ausführungsform der Erfindung kann der für die Erzeugung der Schließhaltekraft des Elektromotors bereitzustellende Schließhaltestrom in einem Bereich zwischen 1,5 A und 10 A variiert werden.According to one embodiment of the invention, the closing holding current to be provided for generating the closing holding force of the electric motor can be varied in a range between 1.5 A and 10 A.

Die Steuereinrichtung ist vorzugsweise dazu eingerichtet, den Schließhaltestrom des Elektromotors auf einem im Wesentlichen konstanten Wert zu halten, wenn die Messtemperatur des Temperatursensors einen bestimmten Grenzwert überschreitet. Auf diese Weise wird erreicht, dass bei unkritischen Temperaturen der Antriebseinrichtung ein energiesparender Elektromotorbetrieb mit geringer Verlustwärme möglich ist.The control device is preferably set up to hold the closing holding current of the electric motor at an essentially constant value when the measuring temperature of the temperature sensor exceeds a certain limit value. In this way, it is achieved that at non-critical temperatures of the drive device, an energy-saving electric motor operation with little heat loss is possible.

Vorzugsweise ist der wenigstens eine Temperatursensor an dem Elektromotor angeordnet und mit diesem innerhalb eines Türkämpfers untergebracht. In einem solchen Fall kann die Temperatur des Elektromotors laufend überwacht werden und im Sinne der vorliegenden Erfindung auf einen günstigen Sollwert bzw. auf ein günstiges Sollwertintervall geregelt werden.The at least one temperature sensor is preferably arranged on the electric motor and accommodated with it within a door fender. In such a case, the temperature of the electric motor can be continuously monitored and, in the context of the present invention, regulated to a favorable setpoint value or to a favorable setpoint value interval.

In anderen Ausführungsformen der Erfindung kann der Temperatursensor jedoch auch an anderer Stelle, beispielsweise außerhalb der automatischen Tür vorgesehen sein, um beispielsweise die Umgebungstemperatur zu erfassen, so dass die Steuerung der Stromzufuhr zum Elektromotor in Abhängigkeit von der Außentemperatur erfolgt.In other embodiments of the invention, however, the temperature sensor can also be provided elsewhere, for example outside the automatic door, for example to detect the ambient temperature so that the power supply to the electric motor is controlled as a function of the outside temperature.

Auch ist es möglich, dass sowohl ein an dem Elektromotor vorgesehener Temperatursensor als auch wenigstens ein weiterer Temperatursensor, etwa ein Außentemperatursensor, vorgesehen sind und in Datenübertragungsverbindung mit der Steuereinrichtung stehen, so dass die Steuereinrichtung die Messwerte beider Temperatursensoren bei der Steuerung des Elektromotors berücksichtigt.It is also possible that both a temperature sensor provided on the electric motor and at least one further temperature sensor, such as an outside temperature sensor, are provided and are in data transmission connection with the control device, so that the control device takes into account the measured values of both temperature sensors when controlling the electric motor.

Als ein bevorzugtes Ausführungsbeispiel der Erfindung sei eine Kabinentür eines Aufzugs genannt.A car door of an elevator may be mentioned as a preferred exemplary embodiment of the invention.

Ein Ausführungsbeispiel der Erfindung wird nachstehend unter Bezugnahme auf die Figuren näher erläutert.

  • Figur 1a zeigt in stark vereinfachter Darstellung eine Frontansicht einer automatischen Schiebetür nach der Erfindung im geschlossenen Zustand, wobei der Türrahmen im Bereich des Türkämpfers teilweise ausgebrochen dargestellt ist, um die Antriebseinrichtung zu verdeutlichen.
  • Figur 1b zeigt eine Schnittansicht der Schiebetür aus Figur 1a entsprechend der Schnittebene b-b in Figur 1a.
  • Figur 2a zeigt die Schiebetür aus Figur 1a und Figur 1b in nahezu vollständig geöffnetem Zustand in einer Frontansicht entsprechend Figur 1a.
  • Figur 2b zeigt eine Schnittansicht der Schiebetür aus Figur 2a entsprechend der Schnittebene b-b in Figur 2a.
An embodiment of the invention is explained in more detail below with reference to the figures.
  • Figure 1a shows a greatly simplified representation of a front view of an automatic sliding door according to the invention in the closed state, the door frame in the area of the door post is shown partially broken away in order to illustrate the drive device.
  • Figure 1b FIG. 4 shows a sectional view of the sliding door from FIG Figure 1a corresponding to the section plane bb in Figure 1a .
  • Figure 2a shows the sliding door off Figure 1a and Figure 1b in an almost completely open state in a front view accordingly Figure 1a .
  • Figure 2b FIG. 4 shows a sectional view of the sliding door from FIG Figure 2a corresponding to the section plane bb in Figure 2a .

Die in den Figuren gezeigte automatische Schiebetür ist eine Teleskopschiebetür mit einem Rahmen und einer Türblattanordnung aus zwei Türblättern 3, 5, die sich beim Öffnungsvorgang und beim Schließvorgang der Teleskopschiebetür in zwei hintereinanderliegenden, parallelen Verschiebeebenen E3, E5 parallel zueinander ausgerichtet und horizontal zueinander längs Führungsschienen bewegen.The automatic sliding door shown in the figures is a telescopic sliding door with a frame and a door leaf arrangement made up of two door leaves 3, 5, which during the opening process and the closing process of the telescopic sliding door are aligned parallel to one another in two parallel sliding planes E3, E5 and move horizontally along guide rails .

Eine Antriebseinrichtung 7 dient dazu, die Teleskopschiebetür auf entsprechende Anforderung, etwa auf Knopfdruck, zu öffnen oder zu schließen, wobei sich das in Figur 1a rechts positionierte und gemäß Figur 1b in der etwas weiter hinten liegenden Verschiebeebene E3 positionierte Türblatt schneller bewegt als das in der etwas weiter vorne liegenden Verschiebeebene E5 positionierte Türblatt 5. Bei derartigen Teleskopschiebetüren wird das in Öffnungsbewegungsrichtung nachlaufende - und in Schließbewegungsrichtung vorlaufende Türblatt (im Beispielsfall das Türblatt 3) üblicherweise mit ca. der doppelten Geschwindigkeit verschoben wie das andere Türblatt.A drive device 7 is used to open or close the telescopic sliding door when requested, for example by pressing a button Figure 1a positioned on the right and according to Figure 1b The door leaf positioned in the shifting plane E3 a little further back moves faster than the door leaf 5 positioned in the shifting plane E5 a little further to the front . moved twice as fast as the other door leaf.

Die beiden Türblätter 3, 5 weisen orthogonal zu den Verschiebeebenen E3, E5 einen geringen Abstand voneinander auf, so dass sie ohne gegenseitige Berührung entlang der Verschiebeebenen E3, E5 in die Schließstellung gemäß Figur 1a und in die Öffnungsstellung 2a verschoben werden können.The two door leaves 3, 5 are orthogonal to the displacement planes E3, E5 at a small distance from one another, so that they move into the closed position according to FIG. 1 without touching one another along the displacement planes E3, E5 Figure 1a and can be moved into the open position 2a.

Der Automatikbetrieb der Tür erfolgt unter Kontrolle einer elektronischen Steuereinrichtung 25, die zusammen mit der Antriebseinrichtung 7 in einem Hohlraum 24 des Türkämpfers 26 untergebracht ist.The automatic operation of the door takes place under the control of an electronic control device 25, which is accommodated together with the drive device 7 in a cavity 24 of the door header 26.

Die Steuereinrichtung 25 erzeugt Steuer- und Schaltbefehle für einen Elektromotor 27, um ihn gesteuert mit elektrischer Antriebsenergie zu versorgen und die jeweilige Motordrehrichtung vorzugeben. Je nach Motordrehrichtung des Elektromotors 27 bewegen sich die Türblätter 3, 5 in Öffnungsbewegungsrichtung oder in Schließbewegungsrichtung. Bei der in den Figuren stark vereinfacht dargestellten Türantriebseinrichtung 7 handelt es sich um einen Seilzugantrieb, bei dem der Elektromotor 27 über einen Transmissionsriemen 29 oder dgl. eine Umlenkrolle 31 rechts oberhalb der Türöffnung 4 antreibt, wobei die Umlenkrolle 31 zwei konzentrisch zur Umlenkrollenachse aneinander angeordnete zylindrische Umlenkrollenabschnitte 33, 35 aufweist, von denen der Umlenkrollenabschnitt 33 einen größeren Durchmesser hat als der Umlenkrollenabschnitt 35. Jeder der beiden Umlenkrollenabschnitte 33, 35 ist von einem jeweiligen Endloszugseil 37, 39 umschlungen und dient zu dessen Antrieb und Umlenkung. Eine zweite Umlenkrolle 41 ist links oberhalb der Türöffnung 4 angeordnet und weist ebenfalls zwei konzentrisch zu ihrer Umlenkrollenachse zueinander angeordnete zylindrische Umlenkrollenabschnitte 43, 45 mit entsprechend unterschiedlichen Durchmessern auf, welche von den Endloszugseilen 37, 39 umschlungen werden und zu deren Umlenkung dienen. Mit dem unteren Trum 36 des um die Umlenkrollenabschnitte 33, 43 mit größerem Durchmesser umlaufenden Endloszugseils 37 ist das schneller laufende Türblatt 3 über ein Mitnehmerelement 47 verbunden, wohingegen mit dem unteren Trum 38 des um die Umlenkrollenabschnitte 35, 45 umlaufenden Endloszugseils 39 das andere Türblatt 5 über ein Mitnehmerelement 49 verbunden ist. Wird der Elektromotor 27 so angesteuert, dass er die Umlenkrolle 31 zur Drehung im Uhrzeigersinn (bezogen auf Figur 1a) antreibt, so bewegen sich die Mitnehmerelemente 47, 49 mit den unteren Trumen 36, 38 in Figur 1a nach links, so dass die Türblätter 3, 5 ebenfalls in Türöffnungsbewegungsrichtung nach links verschoben werden. Wird der Elektromotor 27 so angesteuert, dass er die Umlenkrolle 31 zur Drehung entgegengesetzt dem Uhrzeigersinn (bezogen auf Figur 2a) antreibt, so werden die Türblätter 3, 5 aus ihrer Öffnungsstellung gemäß Figur 2a in Schließbewegungsrichtung nach rechts mit den unteren Trumen 36, 38 bewegt.The control device 25 generates control and switching commands for an electric motor 27 in order to supply it with electrical drive energy in a controlled manner and to specify the respective direction of rotation of the motor. Depending on the direction of motor rotation of the electric motor 27 move the door leaves 3, 5 in the opening movement direction or in the closing movement direction. The door drive device 7 shown in greatly simplified form in the figures is a cable drive in which the electric motor 27 drives a pulley 31 to the right above the door opening 4 via a transmission belt 29 or the like, the pulley 31 being two cylindrical concentric to the pulley axis Has pulley sections 33, 35, of which the pulley section 33 has a larger diameter than the pulley section 35. Each of the two pulley sections 33, 35 is wrapped by a respective endless pull cable 37, 39 and is used to drive and deflect it. A second pulley 41 is arranged to the left above the door opening 4 and also has two cylindrical pulley sections 43, 45 with correspondingly different diameters, which are arranged concentrically to their pulley axis and which are looped around by the endless pull cables 37, 39 and serve to deflect them. The door leaf 3, which runs faster, is connected to the lower strand 36 of the endless pull rope 37, which runs around the pulley sections 33, 43 with a larger diameter, via a driver element 47, whereas the other door leaf 5 is connected to the lower run 38 of the endless pull rope 39, which runs around the pulley sections 35, 45 is connected via a driver element 49. If the electric motor 27 is controlled in such a way that it causes the deflection roller 31 to rotate clockwise (based on Figure 1a ) drives, the driver elements 47, 49 move with the lower strands 36, 38 in Figure 1a to the left, so that the door leaves 3, 5 are also shifted to the left in the door opening movement direction. If the electric motor 27 is controlled in such a way that it causes the deflection roller 31 to rotate counterclockwise (based on Figure 2a ) drives, the door leaves 3, 5 are moved from their open position according to Figure 2a in the direction of closing movement to the right with the lower strands 36, 38.

Da das Zugseil 37 um die Umlenkrollenabschnitte 33, 43 mit den größeren Durchmessern umläuft, hat es eine größere Umlaufgeschwindigkeit als das andere Zugseil 39, welches um die Umlenkrollenabschnitte 35, 45 mit den kleineren Durchmessern umläuft. Dementsprechend wird das von dem Zugseil 37 mitbewegte Türblatt auch schneller in Türschließbewegungsrichtung und in Türöffnungsbewegungsrichtung verschoben als das von dem Zugseil 39 mitbewegte Türblatt 5. Je nachdem, ob die Steuereinrichtung 25 den Elektromotor 27 zur Drehung im Uhrzeigersinn oder entgegen dem Uhrzeigersinn ansteuert, werden die Türblätter 3, 5 in Türschließbewegungsrichtung oder in Türöffnungsbewegungsrichtung verschoben.Since the pull rope 37 revolves around the pulley sections 33, 43 with the larger diameters, it has a greater circulating speed than the other pull rope 39, which revolves around the pulley sections 35, 45 with the smaller diameters. Accordingly, the door leaf moved by the pull rope 37 is also displaced faster in the door closing direction of movement and in the door opening direction of movement than the door leaf 5 moved by the pull rope 39. Depending on whether the control device 25 controls the electric motor 27 to rotate clockwise or counterclockwise, the door leaves are 3, 5 shifted in the door closing movement direction or in the door opening movement direction.

In der Türschließstellung liegt das Türblatt 3 an einem Schließanschlag an.In the door closed position, the door leaf 3 rests against a closing stop.

Im geschlossenen Zustand der Tür, also bei in Türschließstellung befindlicher Türblattanordnung 3,5, wird dem Elektromotor 27 unter Kontrolle der Steuereinrichtung 25 elektrische Energie zugeführt, so dass er eine Schließhaltekraft erzeugt, die vermittels der Antriebseinrichtung 2 auf die Türblätter 3, 5 übertragen wird. Im geschlossenen Zustand der Tür sind die Türblätter 3, 5 somit in Türschließstellung vorgespannt.In the closed state of the door, i.e. with the door leaf arrangement 3, 5 in the door closed position, electrical energy is supplied to the electric motor 27 under the control of the control device 25, so that it generates a closing holding force which is transmitted to the door leaves 3, 5 by means of the drive device 2. In the closed state of the door, the door leaves 3, 5 are thus pretensioned in the door closed position.

In dem Hohlraum 24 des Türkämpfers 26 befindet sich unmittelbar an dem Elektromotor 27 ein Temperatursensor 50 zur Erfassung der Temperatur an dem Elektromotor 27. Der Temperatursensor 50 gibt seine Temperaturmessinformationen über eine entsprechende Datenübertragungsverbindung an die Steuereinrichtung 25 ab.A temperature sensor 50 for detecting the temperature on the electric motor 27 is located directly on the electric motor 27 in the cavity 24 of the door header 26. The temperature sensor 50 transmits its temperature measurement information to the control device 25 via a corresponding data transmission connection.

Befindet sich die Tür im Schließzustand und liegt der Temperaturmesswert (Messtemperatur) des Sensors 50 dabei unter einem bestimmten Temperaturwert, beispielsweise 5 °C, so stellt die Steuereinrichtung 25 bei konstant gehaltener Spannung von beispielsweise 24 VDC einen größeren elektrischen Betriebsstrom für den Elektromotor 27 bereit, indem sie eine Ausgangsstrombegrenzung der betreffenden Stromquelle entsprechend variiert.If the door is in the closed state and the temperature measured value (measuring temperature) of the sensor 50 is below a certain temperature value, for example 5 ° C., the control device 25 provides a larger electrical operating current for the electric motor 27 with the voltage of, for example, 24 VDC kept constant, by varying an output current limit of the relevant current source accordingly.

Die Stromerhöhung führt zu einer Erwärmung des Elektromotors 27 und dessen Umgebung. Je weiter die Messtemperatur des Sensors 50 absinkt, desto größer wird der bereitgestellte Strom in bestimmten Grenzen eingestellt, so dass auch entsprechend mehr Wärme von dem Elektromotor 27 an dessen Umgebung in dem Türkämpfer 26 abgegeben wird und die Komponenten der Antriebseinrichtung 2 vor einer kritischen Abkühlung geschützt werden.The increase in current leads to heating of the electric motor 27 and its surroundings. The further the measurement temperature of the sensor 50 drops, the greater the current provided is set within certain limits, so that correspondingly more heat is emitted from the electric motor 27 to its surroundings in the door header 26 and the components of the drive device 2 are protected from critical cooling become.

Steigt die Messtemperatur des Temperatursensors 50 im Schließzustand der Tür wieder über einen bestimmten Wert an, so sorgt die Steuereinrichtung 25 für eine Reduzierung des dem Elektromotor 27 zugeführten elektrischen Stroms, so dass entsprechend weniger Wärme von dem Elektromotor 27 abgegeben wird und ein weiterer Temperaturanstieg möglichst unterbunden wird.If the measurement temperature of the temperature sensor 50 rises above a certain value again when the door is closed, the control device 25 ensures a reduction in the electric current supplied to the electric motor 27, so that correspondingly less heat is emitted by the electric motor 27 and a further increase in temperature is prevented as far as possible becomes.

Mit 52 ist noch ein weiterer Temperatursensor gekennzeichnet, der sich au-ßerhalb des Türkämpfers 26 befindet und Informationen über die Temperatur außerhalb der automatischen Tür bereitstellen kann, die ggf. ebenfalls von der Steuereinrichtung 25 bei der Motorsteuerung mitberücksichtigt werden können.A further temperature sensor is identified by 52, which is located outside the door panel 26 and can provide information about the temperature outside the automatic door, which can also be taken into account by the control device 25 when controlling the motor.

Der Türkämpfer 26 ist mit einem Wärmedämmstoff 54 ausgekleidet, um einen Wärmeaustausch zwischen der Antriebseinrichtung 2 und der Türumgebung gering zu halten.The door header 26 is lined with a thermal insulation material 54 in order to keep a heat exchange between the drive device 2 and the door environment low.

Es sei an dieser Stelle deutlich betont, dass die vorstehend erläuterte Zugseilantriebseinrichtung 7 lediglich exemplarisch als eine geeignete Antriebseinrichtung für eine erfindungsgemäße automatische Tür vorgestellt wurde. Es kommen auch andere Antriebseinrichtungen, etwa Spindelantriebe, Linearmotorantriebe, Zahnriemenantriebe usw. als Türantriebe infrage.It should be clearly emphasized at this point that the pull cable drive device 7 explained above was presented merely as an example as a suitable drive device for an automatic door according to the invention. Other drive devices, such as spindle drives, linear motor drives, toothed belt drives, etc., can also be used as door drives.

Claims (9)

  1. Automatic door, in particular an automatic lift door, comprising
    - at least one door leaf arrangement (3, 5), which is mounted such that it can move between a closed position and an open position of the door and can be driven by means of an electric motor,
    - a drive device (7), which is housed in a housing (26) at least in part, and comprises a controllable electric motor (27) as the drive means for the door leaf arrangement (3, 5), and
    - a control device (25) for controlling the electric motor (27),
    - it being possible for the electric motor (27) to be actuated by means of the control device (25) in order to exert a closing holding force on the door leaf arrangement (3, 5) when said door leaf arrangement is in its closed position,
    characterised by
    at least one temperature sensor (50, 52) for recording the temperature at a reference point in the region of and/or in the area around the automatic door and for outputting the measured temperature information thereof to the control device (25), the control device (25) being designed to control the electrical power that is to be provided in order to generate the closing holding force of the electric motor (27) on the basis of the particular temperature information from the temperature sensor (50) such that the electrical power of the electric motor (27) increases as the temperature measured by the temperature sensor (50, 52) decreases, at least once the measured temperature has fallen below a specific measured temperature, and the electrical power of the electric motor (27) decreases again when the measured temperature increases again.
  2. Automatic door according to claim 1, characterised in that the control device (25) is designed to vary the closing holding current that is to be provided in order to generate the closing holding force of the electric motor (27) in order to control the electrical power of the electric motor (27) on the basis of the particular temperature information from the temperature sensor (50, 52) such that the closing holding current of the electric motor (27) increases as the temperature measured by the temperature sensor (50) decreases, at least once the measured temperature has fallen below a specific measured temperature, and the closing holding current of the electric motor (27) decreases again when the measured temperature increases again.
  3. Automatic door according to either claim 1 or claim 2, characterised in that the electrical power to be provided in order to generate the closing holding force of the electric motor (27) can vary in a range of between at least 40 W to 120 W.
  4. Automatic door according to any of the preceding claims, characterised in that the closing holding current that is to be provided in order to generate the closing holding force of the electric motor (27) can vary in a range of between at least 1.5 A and 10 A.
  5. Automatic door according to any of the preceding claims, characterised in that the control device (25) is designed to keep the closing holding current of the electric motor (27) substantially constant when the temperature measured by the temperature sensor (50, 52) exceeds a specific threshold value.
  6. Automatic door according to any of the preceding claims, characterised in that said door comprises a door header (26) that forms the housing, and in that the at least one temperature sensor (50, 52) is arranged on the electric motor (27) and is housed inside the door header (26) together with said motor.
  7. Automatic door according to any of the preceding claims, characterised in that the drive device (7) comprises a transmission that is connected to the electric motor (27) and is likewise housed in the housing (26).
  8. Automatic door according to any of the preceding claims, characterised in that the housing (26) is thermally insulated at least in a chamber region of the housing (26) that contains components of the drive device, including the electric motor (27).
  9. Automatic door according to any of the preceding claims, characterised in that said door is a sliding door, in particular a sliding door for a lift car.
EP18731991.8A 2017-07-10 2018-06-07 Automatic door, more particularly automatic lift door Active EP3652100B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017211754.0A DE102017211754A1 (en) 2017-07-10 2017-07-10 Automatic door, in particular automatic elevator door
PCT/EP2018/065084 WO2019011541A1 (en) 2017-07-10 2018-06-07 Automatic door, more particularly automatic lift door

Publications (2)

Publication Number Publication Date
EP3652100A1 EP3652100A1 (en) 2020-05-20
EP3652100B1 true EP3652100B1 (en) 2021-06-16

Family

ID=62636171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18731991.8A Active EP3652100B1 (en) 2017-07-10 2018-06-07 Automatic door, more particularly automatic lift door

Country Status (5)

Country Link
EP (1) EP3652100B1 (en)
AU (1) AU2018300555B2 (en)
DE (1) DE102017211754A1 (en)
ES (1) ES2880410T3 (en)
WO (1) WO2019011541A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9203945U1 (en) * 1992-03-24 1992-05-21 Siemens AG, 8000 München Device for preventing overheating of an engine
JP3547977B2 (en) * 1998-02-27 2004-07-28 株式会社ナブコ Remote monitoring system for automatic door systems
DE102011078164A1 (en) * 2011-06-28 2013-01-03 Siemens Aktiengesellschaft elevator system
FR3025239B1 (en) * 2014-09-02 2019-08-16 Fermod SLIDING DOOR TRANSLATION SYSTEM AND METHOD FOR CONTROLLING THE SAME
DE102015208206A1 (en) * 2015-05-04 2016-11-10 Franz Xaver Meiller Fahrzeug- Und Maschinenfabrik - Gmbh & Co Kg Sliding door, in particular lift sliding door

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3652100A1 (en) 2020-05-20
DE102017211754A1 (en) 2019-01-10
ES2880410T3 (en) 2021-11-24
AU2018300555B2 (en) 2023-11-09
AU2018300555A1 (en) 2019-12-05
WO2019011541A1 (en) 2019-01-17

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