EP3418482A1 - Electric door drive and security door - Google Patents

Abstract

The present invention relates to a door drive for a security door such as a fire or smoke protection door, comprising an electric drive unit for electrically driving a movable door leaf of the safety door, a control unit connectable to the electric drive unit for outputting control signals to the electric drive unit for opening and / or or Closing the security door, at least one fault reporting device, which is designed to deliver a fault signal to the control unit in the presence of a fault criterion, wherein the control unit is adapted to prevent upon receiving such an interference signal, an electric driving the door leaf, but not closed door bring about a one-time closing of the door leaf, and at least one emergency opening input device and a mechanical energy storage. The present invention further relates to a safety door with such an electric door drive and a method for operating a safety door in a plurality of operating modes.

Description

The present invention relates to a door drive for a security door such as a fire or smoke protection door, comprising an electric drive unit for electrically driving a movable door leaf of the safety door, a control unit connectable to the electric drive unit for outputting control signals to the electric drive unit for opening and / or or Closing the security door, at least one fault reporting device, which is designed to emit an interference signal to the control unit in the presence of an interference criterion, wherein the control unit is designed to prevent an electric drive of the door leaf upon receipt of such an interference signal and, however, when the door is not closed to cause a one-time closing of the door leaf. The present invention further relates to a safety door with such an electric door drive and a method for operating a safety door in a plurality of operating modes.

Such door drives are used, for example, to automatically close fire doors in case of fire to counteract a spread of the fire. During the normal operation of the safety door, an electric opening and closing of the door leaf can take place as in a normal, that is not safety-relevant, automatic door. The fault reporting device may in particular be a fire alarm.

The electrical separation of the drive unit from the control unit is caused in case of alarm for safety reasons, in particular to prevent unwanted opening of the door leaf and to allow a preferably electroless closing of the door leaf, if the door is not yet closed. Upon demand closing, the door leaf is held in the closed position under the action of a mechanical energy store independent of the power supply and any control signals.

This is fundamentally desirable in terms of the safety door's protective function, but presents a problem in that escaping persons are obstructed. Especially with security doors with high protection function, the door wings are often relatively heavy, so that the corresponding mechanical energy storage must exert a high clamping force.

Especially weak people or people with physical disabilities may therefore not open the door in an escape the door. Therefore, security doors of the type mentioned are generally not suitable for barrier-free building. However, an electrical opening of the door leaf in the event of escape separates in such door drives from the principle, since the control unit has no access to the electric drive unit in case of failure.

The object of the invention is to provide a door drive that safely closes a door in case of fire alarm or smoke alarm in normal network operation and even in case of power failure. Furthermore, the door drive should allow weak people or persons with physical disabilities to use the door in the event of an alarm as an escape door.

The object is achieved by a door drive with the features of claim 1.

• eine elektrische Antriebseinheit zum elektrischen Antreiben eines beweglichen Türflügels der Sicherheitstür,
• eine mit der elektrischen Antriebseinheit verbindbare Steuerungseinheit zum Ausgeben von Steuersignalen an die elektrische Antriebseinheit zum Öffnen und/oder Schließen der Sicherheitstür,
• zumindest eine Störfallmeldeeinrichtung, welche dazu ausgebildet ist, bei Vorliegen eines Störkriteriums ein Störsignal an die Steuerungseinheit abzugeben, wobei die Steuerungseinheit dazu ausgebildet ist, bei Erhalt eines solchen Störsignals ein elektrisches Antreiben des Türflügels zu unterbinden, vorzugsweise mittels einer elektrischen Trennung der elektrischen Antriebseinheit, bei nicht geschlossenem Türflügel jedoch ein einmaliges Schließen des Türflügels herbeizuführen, wobei die Steuerungseinheit zumindest einen Mikrokontroller, eine Motoransteuerung und ein Motorrelais aufweist, wobei der zumindest eine Mikrokontroller dazu ausgebildet ist, das eine Motorrelais zum Öffnen und Schließen der Sicherheitstür anzusteuern und das Motorrelais zu öffnen, um das elektrische Antreiben des Türflügels bei Vorliegen des Störkriteriums zu unterbinden,
• zumindest eine Notöffnungseingabevorrichtung, die bei Aktivierung ein Notöffnungssignal an die Steuerungseinheit übermittelt, wobei die Steuerungseinheit dazu ausgebildet ist, bei Erhalt eines solchen Notöffnungssignals zumindest einmalig ein unterbundenes elektrisches Antreiben des Türflügels zu erlauben, um eine Öffnungsbewegung des Türflügels zumindest unterstützend sowie ein erneutes Schließen des Türflügels herbeizuführen, und
• einen mechanischen Energiespeicher, vorzugsweise in Form einer Federanordnung, zum Speichern von potentieller Energie, wobei der mechanische Energiespeicher derart mit dem Türflügel koppelbar oder gekoppelt ist, dass bei einer Öffnungsbewegung des Türflügels Energie in den Energiespeicher geladen wird und, ggfs. nach Freigabe des Energiespeichers, eine Schließbewegung des Türflügels unter Abgabe von Energie des Energiespeichers zumindest unterstützt wird, wobei die Steuerungseinheit dazu ausgebildet ist, bei Vorliegen des Störkriteriums, und bei nicht geschlossenem Türflügel ein Schließen des Türflügels mittels des mechanischen Energiespeichers herbeizuführen, falls ein elektrisch angetriebenes Schließen nicht oder nicht in geeigneter Weise möglich ist.

An inventive door drive comprises:

• an electric drive unit for electrically driving a movable door leaf of the safety door,
• a control unit connectable to the electric drive unit for outputting control signals to the electric drive unit for opening and / or closing the safety door,
• at least one accident reporting device, which is designed to emit an interference signal to the control unit when an interference criterion is present, wherein the control unit is designed to receive such an interference signal to prevent electrical driving of the door leaf, preferably by means of electrical separation of the electric drive unit, however, to bring about a one-time closing of the door leaf when the door is not closed, wherein the control unit has at least one microcontroller, a motor drive and a motor relay, wherein the at least one microcontroller is designed for this purpose is to control a motor relay for opening and closing the safety door and to open the motor relay in order to prevent the electric driving of the door leaf in the presence of the interference criterion,
• at least one emergency opening input device which transmits an emergency opening signal to the control unit when activated, wherein the control unit is designed to allow at least once a received electric drive of the door wing upon receipt of such an emergency opening signal, at least supportive of an opening movement of the door leaf and a renewed closing of the door leaf to bring about, and
• a mechanical energy store, preferably in the form of a spring arrangement, for storing potential energy, the mechanical energy store being coupled or coupled to the door leaf such that energy is charged into the energy store during an opening movement of the door leaf and, if necessary, after release of the energy store, a closing movement of the door leaf is at least supported by releasing energy of the energy store, wherein the control unit is designed to bring about closing of the door leaf in the presence of the interference criterion, and if the door is not closed by means of the mechanical energy store, if an electrically driven closing is not or not suitable manner is possible.

The electric door drive according to the invention can safely close a security door by means of the control unit, a fire alarm or smoke alarm both in normal network operation and in a power failure. By means of the emergency opening input device, weak persons or persons with physical disabilities can close the door despite the secure closing of the door in the event of a door lock Use the alarm as an escape door. For this purpose, the control unit is designed to let an emergency closed door open again.

Furthermore, the invention has the advantage that by the use of at least one microcontroller signals from the incident reporting device as well as from the emergency opening input device can be processed faster, so that electrical functions of the security door can be performed faster.

Preferably, a redundant power supply is provided, wherein the redundant power supply is adapted to replace in the presence of a disturbance criterion and / or a power failure, a power supply of the door drive from a power grid. By providing a redundant power supply, the electric door drive according to the invention can be opened electrically in case of fire alarm or smoke alarm even in the event of a power failure by generating an emergency opening signal. Thus, it is also possible in case of power failure weak persons or persons with physical impairments to use the security door as an escape door.

Particularly preferably, the redundant power supply is formed by an accumulator. Such rechargeable batteries can be provided in a particularly simple and cost-effective manner. The size or capacity of the batteries used can be relatively easily adapted to the desired mode.

Preferably, a charging and monitoring device is provided, by means of which a state of the accumulator is monitored. By means of the charging and monitoring device can be ensured in case of power failure that the battery is always sufficiently charged. Furthermore, the charging and monitoring device can be configured to detect a defect of the accumulator, so that it can be replaced in good time before the occurrence of an emergency.

According to an advantageous embodiment, the control unit is designed, upon detection of a low state of charge of the redundant power supply, preferably by means of the charging and monitoring device to bring about electrical isolation of the electric drive unit from the redundant power supply and maintain until the power supply from the power grid again is guaranteed. This prevents the safety door from being kept open in case of danger.

Particularly preferably, the at least one microcontroller is designed to close the motor relay when the emergency opening input device is activated for a predefined period of time. By closing the motor relay, an electrical connection between the motor drive and the drive unit can be temporarily restored to allow barrier-free door opening.

Advantageously, two microcontrollers are provided, which are each connected to the incident reporting device, the emergency opening input device and the motor relay. In this way, a redundant evaluation of the signals of the fault reporting device and / or the emergency opening input device in the control unit can take place. Accordingly, the control unit can set the electric door drive from normal operation to an alarm mode only in the event of independent and proper detection of signals of the accident reporting device and / or the emergency opening input device, or can execute control commands in alarm mode.

The second microcontroller is preferably designed to carry out a redundant evaluation of the signals of the at least one accident reporting device. The two microcontrollers are connected to the motor relay by means of an AND gate and the motor relay is only opened when a fault criterion of at least one microcontroller is detected. Thus, the controller can only with independent detection of proper signals of the emergency opening input device let the security door open at least supportive.

In addition, a redundant motor, a redundant motor relay and a redundant motor control can be present in order to further increase operational safety.

Preferably, the at least one microcontroller is adapted, after the opening movement of the door leaf after activation of the emergency opening input device, to bring about a closing movement of the door leaf after a predefined time, for example in the range of 5 to 120 seconds, by the electric drive unit.

Advantageously, the at least one microcontroller is configured to evaluate signals of the emergency opening input device in an edge-triggered manner. For this purpose, the controller evaluates, for example, the rising edge of the signal, so that a continuous activation of the microcontroller, e.g. caused by jamming of the emergency button, can not lead to a permanent opening of the door, so that the security door, for example, is not kept open in case of fire.

• im Normalbetrieb eine Stromversorgung aus dem Stromnetz vorhanden ist und die Steuerungseinheit dazu ausgebildet ist, bei Erkennen von Türöffnungssignalen, bspw. von einem Bewegungsmelder, Steuersignale an die elektrische Antriebseinheit auszugeben, um die Sicherheitstür zu öffnen und/oder zu schließen;
• im Alarmbetrieb Störsignale von der Störfallmeldeeinrichtung durch die Steuerungseinheit empfangen werden und die Steuerungseinheit dazu ausgebildet ist, die Sicherheitstür mittels der Antriebseinheit und/oder dem mechanischen Energiespeicher zu schließen, wobei im Alarmbetrieb die Steuerungseinheit insbesondere dazu ausgebildet ist, die Türöffnungssignale nicht mehr auszuwerten;
• im Netzausfallbetrieb kein Strom aus dem Stromnetz vorhanden ist und die Steuerungseinheit dazu ausgebildet ist, die redundante Energieversorgung hinzu zu schalten, um die Funktion des Stromnetzes zu übernehmen und den elektrischen Türantrieb mit Strom zu versorgen; und
• im Türschließerbetrieb kein Strom aus dem Stromnetz vorhanden ist und ein Mindestladezustand der redundanten Energieversorgung unterschritten ist, und die Steuerungseinheit dazu ausgebildet ist, ein Schließen des Türflügels mittels des mechanischen Energiespeichers herbeizuführen;

wobei die Steuerungseinheit dazu ausgebildet ist, im Normalbetrieb, im Alarmbetrieb und im Netzausfallbetrieb bei Vorliegen eines Notöffnungssignals zumindest einmalig ein elektrisches Antreiben des Türflügels in Öffnungsrichtung herbeizuführen.Preferably, the electric door drive is adapted to be operated in a plurality of operating modes, wherein the plurality of operating modes in particular consist of the following operating modes: normal operation, alarm operation, power failure operation and door closer operation, wherein

• in normal operation, a power supply from the power grid is present and the control unit is adapted to output upon detection of door opening signals, for example. From a motion detector, control signals to the electric drive unit to open the safety door and / or close;
• in alarm operation, interference signals from the incident reporting device are received by the control unit and the control unit is designed to open the security door by means of the drive unit and / or the mechanical energy store close, in alarm mode, the control unit is designed in particular to no longer evaluate the door opening signals;
• in the power failure mode, no power from the power grid is present and the control unit is adapted to switch the redundant power supply to take over the function of the power grid and to provide the electric door drive with power; and
• no power is available from the power supply in the door closer operation and a minimum charge state of the redundant power supply is not reached, and the control unit is designed to bring about a closing of the door leaf by means of the mechanical energy store;

wherein the control unit is adapted to cause at least once in the normal operation, in alarm mode and power failure operation in the presence of an emergency opening signal, an electric driving the door leaf in the opening direction.

When operating the electric door drive in several operating modes, the safety door can be operated according to the specific accident, so that the operation of the safety door can be preset to various malfunctions.

Advantageously, the control unit is adjustable to control in the case of power failure either the drive in normal operation, in alarm or initially in normal operation and after a settable time or when reaching a lower limit for the state of charge of the redundant power supply in alarm mode. Thus, the power failure operation can be configured parametrisierbar.

Preferably, there are sensors that monitor the opening and / or closing of the door leaf and output an obstacle signal to the control unit when there is an obstacle in the movement area of the door leaf. By means of such sensors can be prevented that, for example, people who are in the range of motion of the door are injured by an automatically closing door.

According to a further aspect, the above object is achieved by a security door. Such a security door comprises a door leaf, which is movable relative to a door frame between an open position and a closed position and an electric door drive of the type mentioned, wherein the door drive is coupled via a coupling element with the door leaf to allow automatic movement of the door leaf. The advantages that have been explained in connection with the electric door drive according to the invention apply here mutatis mutandis.

Preferably, the at least one emergency opening input device is provided in or on the security door. In this way, the emergency opening can be initiated in the area of the relevant security door, so that weak persons or persons with physical impairments find an emergency button in the area of the security door.

Preferably, the safety door is a slam safety door and preferably a fire door. Safety slam doors can be relatively easily opened and closed by means of an electric door drive and kept closed by means of a mechanical energy storage.

• Normalbetrieb, wenn die Stromversorgung aus dem Stromnetz vorhanden ist und wenn keine Störsignale von der Störfallmeldeeinrichtung empfangen werden;
• im Alarmbetrieb, wenn Störsignale von der Störfallmeldeeinrichtung empfangen werden;
• im Netzausfallbetrieb, wenn die Stromversorgung aus dem Stromnetz nicht vorhanden ist; und
• im Türschließerbetrieb, wenn die Sicherheitstür im Netzausfallbetrieb betrieben wird und wenn ein Mindestladezustand der redundanten Energieversorgung nicht mehr gewährleistet ist;

wobei

• im Normalbetrieb bei Erkennen von Türöffnungssignalen, bspw. von einem Bewegungsmelder, Steuersignale von der Steuerungseinheit an die elektrische Antriebseinheit ausgegeben werden, um die Sicherheitstür zu öffnen und/oder zu schließen,
• im Alarmbetrieb bei Erkennen einer geöffneten Sicherheitstür Steuersignale von der Steuerungseinheit ausgegeben werden, um die Sicherheitstür zumindest einmalig mittels der Antriebseinheit und/oder dem mechanischen Energiespeicher zu schließen,
• im Netzausfallbetrieb die Steuerungseinheit die redundante Energieversorgung hinzuschaltet, um die Funktion des Stromnetzes zu übernehmen und den elektrischen Türantrieb mit Strom zu versorgen; und

im Türschließerbetrieb die Steuerungseinheit automatisch ein Schließen des geöffneten Türflügels mittels des mechanischen Energiespeichers bewirkt.In another aspect, the present invention relates to a method of operating a security door in multiple modes of operation, wherein the plurality of modes of operation consist of the following modes of operation:

• Normal operation when the power supply from the power grid is present and when no spurious signals are received from the fault reporting device;
• in alarm mode, when interference signals are received by the fault reporting device;
• in the power failure mode, if the power supply from the power grid is not available; and
• in door closer operation, if the safety door is operated in the power failure mode and if a minimum state of charge of the redundant power supply is no longer guaranteed;

in which

• in normal operation upon detection of door opening signals, for example from a motion detector, control signals are output from the control unit to the electric drive unit in order to open and / or close the safety door,
• control signals are output by the control unit in alarm mode when an open safety door is detected in order to close the safety door at least once by means of the drive unit and / or the mechanical energy store,
• in the power failure mode, the control unit adds the redundant power supply to take over the function of the power grid and to provide power to the electric door drive; and

In the door closer operation, the control unit automatically causes the open door leaf to be closed by means of the mechanical energy store.

According to such a method, the security door can be operated in at least three modes of operation such that weak persons or persons with physical impairments can use the door as a escape door in the event of an alarm or in the event of a power failure despite the secure closing of the security door.

The advantages that have been explained in connection with the electric door drive or the security door according to the invention apply here mutatis mutandis.

Advantageously, in the power failure mode opening and closing the security door as in normal operation or in Alarmbetreib or initially as in normal operation and after a predetermined time in alarm operation is performed.

Further developments of the invention are set forth in the dependent claims, the description and the accompanying drawings.

Fig. 1

ist eine vereinfachte Prinzipdarstellung einer erfindungsgemäßen Sicherheitstür.

Fig. 2

ist eine vereinfachte Prinzipdarstellung einer weiteren erfindungsgemäßen Sicherheitstür.

Fig. 3

ist eine vereinfachte Prinzipdarstellung einer dritten erfindungsgemäßen Sicherheitstür.

The invention will now be described by way of example with reference to the drawings.

Fig. 1

is a simplified schematic diagram of a security door according to the invention.

Fig. 2

is a simplified schematic diagram of another security door according to the invention.

Fig. 3

is a simplified schematic diagram of a third security door according to the invention.

Fig. 1 shows a fire door 11, which includes a movable door wing 13. The door leaf 13 is rotatable relative to a frame, a guide or the like. The fire door 11 could also include a plurality of door leaves 13, for example, two oppositely rotatable door wings 13. On the door 13, an actuating element 15 is provided. The actuating element 15 may be provided in the form of a handle or a door handle, by means of which a user can manually open the door leaf 13.

In principle, the fire door 11 may also be designed for fully automatic operation, for example using door opener signals supplied by proximity sensors (not shown), and accordingly designed without an actuator.

For automatically opening and closing the fire door 11, a door drive 17 is provided which comprises an electric drive unit 19, here in the form of an electric motor. The electric drive unit 19 is not in the individual illustrated coupling element coupled to the door leaf 13 so that it is electrically driven. The electric drive unit 19 could also be designed only for a servo operation in which no independent opening of the door leaf 13 by means of the electric drive unit 19 is possible, but only a manual opening of the door leaf 13 is supported.

The door drive 17 further comprises a mechanical energy storage 21, which is also coupled to the door leaf 13. The mechanical energy storage 21 may be performed in a basically known manner as a simple spring arrangement. When the door leaf 13 is opened, the spring arrangement is tensioned, that is, potential energy is stored in the mechanical energy storage 21. By means of the spring arrangement, the door leaf 13 can also be held in the open position after a single opening. A closing movement of the door leaf 13 is effected while releasing energy of the mechanical energy store 21. In case of failure of the power supply from the mains 41, the spring assembly includes an open fire door 11th

To output appropriate control signals to the electric drive unit 19, an electronic control unit 23 is provided which comprises a microcontroller 25 (.mu.C), a motor driver 27 and a motor relay 29. The normally open motor relay 29 is arranged in a supply circuit 31 which connects the electric drive unit 19 with the motor drive 27.

The electrical control unit 23 is in the example of Fig. 1 single channel (only one μC), but can also be dual-channel (two μC see Fig. 2 and 3 ) be formed. In both cases, the control unit 23, 23 'fulfills the requirements regarding functional safety of the applicable directives with regard to a fire alarm.

The motor drive 27 and the motor relay 29 are also connected to the microcontroller 25. To connect the motor relay 29 to the microcontroller 25, a control current path 33 is provided. Furthermore, a fault reporting device in the form of a fire detector 35 is provided. In the absence of an accident, the motor relay 29 is closed.

It should be noted that the motor driver 27 and the drive unit 19 are both single-channel (see figures) or dual-channel (not shown), i. two motor controls 27, two motor relays 29, two motors 19 may be. Furthermore, the microcontroller 25 of the control unit 23 is connected via a control line 39 to the motor drive 27 and designed to bring about opening movements and subsequent closing movements of the door leaf 13 by the electric drive unit 19, while the motor relay 29 is closed. The opening movements and closing movements may be e.g. triggered by a motion sensor (not shown) in a known manner, the door opening signals transmitted to the control unit 23.

As soon as the fire detector 35 detects a fire, the motor relay 29 or a normally open contact (not shown) is opened by means of the microcontroller 25 via the control current path 33. For this purpose, the fire detector 35 transmits an interference signal to the control unit 23. The control unit 23 is designed to prevent electrical drive of the door leaf 13 upon receipt of such an interference signal. The motor driver 27 is then disconnected from the electric drive unit 19. Accordingly, any electrical driving of the door leaf 13 is omitted. If the door leaf 13 is not yet closed, the control unit 23 ensures at least a single closing of the door leaf. For this purpose, either the electric drive 19 or the mechanical energy storage 21 can be used to move the door leaf 13 in the closed position. Fire detectors 35 and smoke detectors that can be used for this purpose are well known from the prior art.

If a person wants to pass the fire door 11 in case of fire, they must open the door 13 against the force of the mechanical energy storage 21. In particular, weak people or people with physical impairments may not be able to muster this power. In order not to prevent these persons from leaving the burning building, for example, an emergency opening input device in the form of an emergency button 37 is arranged in the area of the safety door 11.

Upon actuation of the emergency button 37 an emergency opening signal is transmitted to the microcontroller 25. For this purpose, the microcontroller 25 analyzes the rising edge of the incoming emergency opening signal of the emergency button 37. The control unit 23 evaluates the rising edge of the interference signal, so that a continuous activation of the microcontroller 25, e.g. caused by jamming of the emergency button 37, can not lead to a permanent opening of the door.

The control unit 23 is designed to allow at least once a prevented electric driving of the door leaf 13 upon receipt of such an emergency opening signal. The control unit 23 is thereby able by means of the microcontroller 25 to be able to temporarily bridge a disconnection of the electric drive unit 19 triggered by the fire detector 35 from the motor drive 27. As a result, the fire door 11 is opened at least supportive and then causes a renewed closing of the door leaf 13.

Furthermore, escape route safety sensors, not shown, may be coupled to the control unit 23, which provide the function of the emergency opening input device. Thus, if a person touches the emergency button 37 or pressed in case of fire or if a Rettungswegsicherungs sensor reports the approach of a fleeing person, the microcontroller 25 is controlled such that the motor relay 29 is closed, and a signal of the fire detector 35 temporarily overridden ,

In the short term, in this context, the security door means for a predetermined period of time, e.g. 5 to 120 seconds, preferably 10 to 60 seconds is opened to allow escapees to leave the building. After expiration of the predetermined period, the motor relay 29 opens.

In this context, it should be noted that in an emergency opening, the control unit 23 may be configured to have full access to the electric drive unit 19 during normal operation during the predetermined period.

The safety state of the fire door 11, in which the motor drive 27 separated from the electric drive unit 19 and the door leaf 13 is acted upon exclusively by the mechanical energy storage 21 is then restored. However, another bridging can be triggered again at any time by a further edge at the signal input of the microcontroller 25.

In principle, the microcontroller 25 could also be designed to bridge the separation of the drive unit 19 triggered by the fire detector 35 from the control unit 23 for a predetermined period of time.

Due to the emergency button 37 or one or more escape route safety sensors, it is ensured that the control unit 23 still has limited access to the electric drive unit 19 after a triggered fire alarm, so that escaping persons through the electric door drive 17 when leaving a building in an emergency can be supported.

Should the power supply from the power supply 41 fail in the event of fire or in the presence of another accident and a person wants to pass through the fire door 11, they must manually open the door 13 against the force of the mechanical energy storage 21, since the spring is designed to be any failure Power supply to close the fire door 11. As already mentioned, in particular weak people or people with physical impairments may not be able to apply the force required to open the door.

However, in order to continue to ensure the barrier-free operation of the fire door 11 even in the event of a power failure or a power cut in the event of a fire, an additional redundant power supply 43 is provided. The redundant power supply 43 is an accumulator in the present example. The accumulator 43 supplies the door drive 17 with electrical energy in the event of a power failure, so that the fire door 11 can also be used in the event of a power failure, e.g. can be opened via the emergency button 37. This switching of the electrical power supply from the mains 41 to the accumulator 43 and back takes place automatically by means of the control unit 23, 23 '. By means of the accumulator 43, a barrier-free passage through the door 11 can be ensured, at least for a certain period of time.

Advantageously, a state of charge of the accumulator 43 is monitored by means of a charging and monitoring device 45 in normal network operation and upon detection of falling below a state of charge of the accumulator 43 or upon a determination that the accumulator 43 is no longer working properly, indicated by the microcontroller 25 that the Accumulator 43 has to be maintained. In addition, the motor relay 29 can be opened so that the door leaf 13 is closed by the mechanical energy storage 21 for safety reasons.

The accumulator 43 has a predefined capacity, as a function of which a service life of the accumulator 43, ie a predefined period in which the redundant power supply is possible, can be determined. The control unit 23 monitors the state of charge or the capacity of the accumulator 43 in the event of a power failure.

Preferably, the capacity of the accumulator 43 is selected such that a service life of at least 30 minutes to 180 minutes is guaranteed, so that the fire door as T30, T60, T90, T120 and T180 door used, and can also be passed during this period barrier-free , When the accumulator 43 is discharged, the controller switches to a door closer operation (see below).

Fig. 2 shows a further embodiment of the invention. Compared to the embodiment of the Fig. 1 the control unit 23 'comprises the Fig. 2 in addition, a second microcontroller 47 and a logical AND 49 in the form of an AND gate. The second microcontroller 47 forms a redundant monitoring option together with the logical AND 49. The redundant monitoring option offers the system a possibility of checking, by means of which it can be evaluated whether an interference signal, for example, has actually been emitted by the fire detector 35 or not. If the second microcontroller 47 comes to the same result as the first microcontroller 25, the signals from the first and second microcontroller 25, 47 are forwarded to the logical AND 49 and only upon detection of a fault by both microcontroller 25, 47, the motor relay 29 is automatic open.

Fig. 3 shows a further embodiment of the invention. Compared to the embodiment of the Fig. 2 the control unit 23 "does not comprise a logical AND, but the two microcontrollers 25, 47 are in each case connected directly to the motor drive 27 in order to control them redundantly each time a fault signal for closing the fire door 11 is received.

Instead of the connection between the two microcontrollers 25, 47 and the motor driver 27, the logical AND 49 of the embodiment according to FIG Fig. 2 also be designed as a logical OR.

By means of the embodiment according to Fig. 3 or by means of a logical OR, it can be ensured even if one of the microcontrollers 25, 47 fails the motor control 27 or the motor relay 29, a closing of the door at a disturbance signal from, for example, a fire detector 35 actually brought about.

Another way of accomplishing a redundant closing of the fire door 11 on the basis of the two microcontrollers 25, 47 is to provide a respective motor, motor driver and motor relay for each microcontroller 25, 47 instead of connecting both microcontrollers 25, 47 to a motor driver 27 ,

In the in the FIGS. 1 to 3 In the embodiments shown, additional sensors may be present (not shown) that monitor the opening and / or closing of the door leaf 13 and output an obstacle signal, similar to a photoelectric barrier in an elevator, to the control unit 23, 23 ', 23 "when in the Movement range of the door leaf 13 is an obstacle.

• ein Normalbetrieb, wenn die Stromversorgung aus dem Stromnetz 41 vorhanden ist und wenn keine Störsignale von der Störfallmeldeeinrichtung 35 empfangen werden,;
• ein Alarmbetrieb, wenn Störsignale von der Störfallmeldeeinrichtung 35 empfangen werden;
• ein Netzausfallbetrieb, wenn die Stromversorgung aus dem Stromnetz 41 nicht vorhanden ist; und
• ein Türschließerbetrieb, wenn die Sicherheitstür 11 im Netzausfallbetrieb betrieben und wenn ein Mindestladezustand der redundanten Energieversorgung 43 nicht mehr gewährleistet wird.

The fire door 11 is operated by a method for operating the security door 11 in a plurality of operating modes. These are:

• a normal operation when the power supply from the power grid 41 is present and when no noise is received from the fault reporting device 35;
• an alarm operation when jamming signals are received from the fault reporting device 35;
• a power failure operation when the power supply from the power grid 41 is absent; and
• a door closer operation when the safety door 11 is operated in the power failure mode and when a minimum state of charge of the redundant power supply 43 is no longer guaranteed.

In normal operation, upon detection of door opening signals, for example from a motion detector, control signals from the control unit 23, 23 ', 23 "at the electric drive unit 19 is output to open and / or close the safety door 11.

In alarm operation, control signals 23, 23 ', 23 "are output by the control unit 23, 23', 23" upon detection of an opened safety door in order to close the safety door 11 at least once by means of the drive unit 19 and / or the mechanical energy store 21.

In the power failure mode, the control unit 23, 23 ', 23 ", the redundant power supply 43 is added to take over the function of the power grid 41 and to provide power to the electric door drive 17. In power failure operation can open and close the security door as in normal operation or in Alarm operation or initially as in normal operation and after a predetermined time in alarm operation are performed.

In the door closer operation, the control unit 23, 23 ', 23 "automatically effects a closing of the opened door leaf 13 by means of the mechanical energy store 21.

Thus, the door drive 17 operates in normal operation as any known door drive. A power supply from the mains 41 is present. The fire door 11 opens automatically after being driven by the known sensors, such as e.g. Motion detectors, which can be formed from a radar, infrared sensor, push-button or similar. The fire door 11 can also be opened by a control by the emergency opening signal of the emergency button 37. In normal operation, both the opening and the closing of the door by sensors (not shown) can be secured.

In the event of an alarm, the fire detector 35 switches the safe control 23, 23 ', 23 "into alarm mode. The control unit 23, 23', 23" causes the fire door 11 to be closed by means of the motor control 27 and the drive unit 19 In the alarm mode, the control unit 23, 23 ', 23 "evaluates the normal control sensors, such as motion detectors, which may consist of a radar, infrared sensor, buttons or the like, no longer Persons or persons with physical impairments automatically open and pass the fire door 11. The fire door 11 opens after each actuation (flank) and automatically closes again after an adjustable period of time.The closing force of the motor (drive unit 19) corresponds to the minimum closing force required by the guidelines (EN -Equipment).

In the power failure mode, the fire door 11 can be operated as in normal operation. For this purpose, only the redundant power supply is then connected, so that the accumulator 43 takes over the function of the power grid 41 and supplies the door drive 17 with power.

The power failure operation can also be parameterized by either the normal operation in the alarm mode is switched or first in the normal operation and after an adjustable time, the fire door 11 from the normal operating mode in which the accumulator 43, the door drive 17 with power in the alarm mode ( see above) is switched.

The opening of the fire door 11 and the closing of the fire door 11 may also be monitored sensory in the power failure mode and alarm operation. To monitor the closing, suitable sensors (not shown) are used. These are preferably designed such that smoke can not prevent the closing, so does not lead to a response of the sensors.

In alarm mode, the control unit 23, 23 ', 23 "could also be designed to allow a maximum number of opening movements, for example 5 to 10 such opening movements, which prevents, for example, a defect of the emergency button 37, that too many undesired opening movements affect the function of the emergency opening device 37, for example, the accumulator 43 discharged early.

In alarm operation, the control unit monitors by means of the charging and monitoring device 45 in a power failure, the state of charge of the accumulator 43. Upon detection that the accumulator 43 is almost completely discharged, the controller switches to the door closer operation and opens the motor relay 29. This is possibly the Detecting a spring of the mechanical energy storage 21 by means of a valve or a brake (both not shown) solved so that the spring or the mechanical energy storage 21 acts on the door and the open door closes securely. Automatic opening is no longer possible in this operating mode, the fire door 11 is no longer accessible, but closes reliably after each manual opening.

Emergency button 37 is used for emergency opening. For this purpose, a special signal via which weak persons and persons with physical impairments can automatically open the door is transmitted to the control unit 23, 23 ', 23 "as long as energy is available from the power network 41 or accumulator 43. The emergency button 3 can also be designed as escape route button, cam switch in the door handle 15, radio transmitter, etc.

The first and the second microcontroller 25, 47 can each have test inputs, by means of which a functional test of the control unit 23, 23 ', 23 "can be carried out by means of test signals.

In addition, the control unit 23, 23 ', 23 "can also have a memory in which the various operating modes are stored, The memory can also be designed to store operating data of the safety door 11 or the accumulator 43 Security door was opened or closed, the duration of an opening movement or a Closing movement, in the presence of a disturbance criterion, the duration and the time of the disturbance criterion or the time course of the capacity of the accumulator 43, which may be an indication of the state of the accumulator 43.

The data and / or programs stored in the memory can be output by means of an interface (not shown) of the control unit 23, 23 ', 23 "and evaluated in a further device (not shown) 23, 23 "linked firmware can be updated by means of an update initiated by the interface. Such an interface can be eg an Ethernet interface, a USB interface, a Bluetooth interface, a WLAN interface, etc.

LIST OF REFERENCE NUMBERS

11

Fire door

13

door

15

jig

17

door drive

19

drive unit

21

energy storage

23

control unit

23 '

control unit

23 "

control unit

25

microcontroller

27

motor Controller

29

motor relay

31

Supply circuit

33

Control current path

35

fire alarm

37

emergency button

39

control line

41

network

43

accumulator

45

Charging and monitoring device

47

microcontroller

49

logical AND

Claims (16)

Electric door drive (17) for a security door (11), in particular a fire door, comprising: an electric drive unit (19) for electrically driving a movable door leaf (13) of the safety door (11), a control unit (23, 23 ', 23 ") connectable to the electric drive unit (19) for outputting control signals to the electric drive unit (19) for opening and / or closing the safety door (11), - At least one accident reporting device (35) which is adapted to deliver in the presence of a Störkriteriums an interference signal to the control unit (23, 23 ', 23 "), wherein the control unit (23, 23', 23") is adapted to, at However, when the door leaf (13) is not closed, the door leaf (13) is closed once, the control unit (23; 23 '; 23 ") comprising at least one microcontroller (25 , 47), a motor drive (27) and a motor relay (29), wherein the at least one microcontroller (25, 47) is adapted to drive a motor relay (29) for opening and closing the safety door (11) and the motor relay (29) to open in order to prevent the electric drive of the door leaf (13) in the presence of the interference criterion, at least one emergency opening input device (37) which, when activated, transmits an emergency opening signal to the control unit (23; 23 '; 23 "), the control unit (23; 23';23") being designed at least once upon receipt of such an emergency opening signal to prevent an inhibited electric drive of the door leaf (13) to an opening movement the door leaf (13) at least supportive and a re-closing of the door leaf (13) cause, and a mechanical energy store (21) for storing potential energy, the mechanical energy store (21) being coupled or coupled to the door leaf (13) such that energy is charged into the energy store (21) during an opening movement of the door leaf (13); , If necessary, after release of the energy storage, a closing movement of the door leaf (13) while releasing energy of the energy store (21) is at least supported, wherein the control unit (23; 23 ', 23 ") is designed to be present in the presence of the Störkriteriums and not closed door (13) to bring about a closing of the door leaf (13) by means of the mechanical energy storage device (21), if an electrically driven closing is not or not possible in a suitable manner. Electric door drive (17) according to claim 1,
characterized in that
a redundant power supply (43) is provided, wherein the redundant power supply (43) is designed, in the presence of a fault criterion and / or a power failure, a power supply of the door drive (17) from a power grid (41), preferably for a predefined period of time, to replace. Electric door drive (17) according to claim 1 or 2,
characterized in that
the redundant power supply is formed by an accumulator (43). Electric door drive (17) according to claim 3,
characterized in that
a charging and monitoring device (45) is provided, by means of which a state of the accumulator (43) is monitored. Electric door drive (17) according to claim 4,
characterized in that
the control unit (23, 23 ', 23 ") is designed, upon detection of a low state of charge of the redundant power supply (43), preferably by means of the charging and monitoring device (45), an electrical separation of the electric drive unit (19) from the redundant To bring energy supply (43) and maintain until the power supply from the mains (41) is ensured again. Electric door drive (17) according to one of the preceding claims,
characterized in that
the at least one microcontroller (25, 47) is adapted to close the motor relay (29) for a predefined period of time when the emergency opening input device (37) is activated. Electric door drive (17) according to claim 6,
characterized in that
two micro-controllers (25, 47) are provided, each connected to the fault reporting device (35), the emergency opening input device (37) and the motor relay (29). Electric door drive (17) according to claim 7,
characterized in that
the second microcontroller (47) is designed to carry out a redundant evaluation of the signals of the at least one fault reporting device (35), and
the two microcontrollers (25, 47) are connected to the motor relay (29) by means of an AND gate (49) and the motor relay (29) is opened only upon detection of an interference criterion of at least one microcontroller (25, 47). Electric door drive (17) according to claim 7 or 8,
characterized in that
only one motor drive (27) in the control unit (23, 23 ') arranged and the second microcontroller (47) is not connected to the one motor drive (27). Electric door drive (17) according to one of the preceding claims 6 to 9,
characterized in that
the at least one microcontroller (25, 47) is designed to evaluate signals of the emergency opening input device (37) in an edge-triggered manner. Electric door drive (17) according to one of the preceding claims,
characterized in that
the electric door drive (17) is adapted to be operated in a plurality of operating modes, wherein the plurality of operating modes in particular consist of the following operating modes: normal operation, alarm operation, power failure operation and door closer operation, wherein in normal operation, a power supply from the power grid (41) is present and the control unit (23, 23 ', 23 ") is designed to output control signals to the electric drive unit (19) when detecting door opening signals, for example from a motion detector. to open and / or close the safety door (11); in the alarm mode, fault signals from the fault reporting device (35) are received by the control unit (23, 23 ', 23 ") and the control unit (23, 23', 23") is designed to operate the safety door (11) by means of the drive unit (19 ) and / or to close the mechanical energy store (21), wherein in the alarm mode, the control unit (23, 23 ', 23 ") is in particular designed to no longer evaluate the door opening signals; - In the power failure mode, no power from the power grid (41) is present and the control unit (23, 23 ', 23 ") is adapted to the redundant power supply (43) to switch to take over the function of the power grid (41) and to supply the electrical door drive (17) with electricity, and - In the door closer operation no power from the power grid (41) is present and a minimum state of charge of the redundant power supply (43) is below, and the control unit (23; 23 ', 23 ") is adapted to close the door leaf (13) by means of mechanical energy storage (21) bring about; wherein the control unit (23; 23 ', 23 ") is designed to bring about at least once in the normal operation, in alarm operation and in power failure operation in the presence of an emergency opening signal, an electric driving of the door leaf (13) in the opening direction. Electric door drive (17) according to claim 11,
characterized in that
the control unit (23, 23 ', 23 ") is adjustable, in case of power failure, optionally the door drive (17) in normal operation, in alarm mode or initially in normal operation and after expiry of an adjustable time or when reaching a lower limit for the state of charge of the redundant power supply (43 ) in alarm mode. Electric door drive (17) according to one of the preceding claims,
characterized in that sensors are provided which monitor the opening and / or closing of the door leaf (13) and output an obstacle signal to the control unit (23, 23 ', 23 ") when there is an obstacle in the movement region of the door leaf (13) , Safety door (11), in particular fire door, with a door leaf (13),
is movable relative to a door frame between an open position and a closed position, and an electric door drive (17) according to at least one of the preceding claims, wherein the door drive (17) via a coupling element with the door (13) is coupled to an automatic movement of the Door leaf (13) to allow, and preferably wherein the at least one emergency opening input device in or on the security door (11) is provided. A method of operating a security door (11) according to claim 14, in a plurality of modes of operation, the plurality of modes of operation consisting of the following modes of operation: - Normal operation, if the power supply from the power grid (41) is present and, if no interference signals from the fault reporting device (35) are received; in alarm mode, when interference signals are received by the fault reporting device (35); - in the power failure mode, if the power supply from the power grid (41) is not present; and - in door closer operation, if the safety door is operated in the power failure mode and if a minimum state of charge of the redundant power supply (43) is no longer guaranteed; in which in normal operation upon detection of door opening signals, for example from a motion detector, control signals are output from the control unit (23, 23 ') to the electric drive unit (19) in order to open and / or close the safety door (11), in the alarm mode when an open safety door (11) is detected, control signals are output by the control unit (23, 23 ', 23 ") to the safety door (11) at least once by means of the drive unit (19) and / or the mechanical energy store (21) close, - In the power failure mode, the control unit (23, 23 ', 23 ") the redundant power supply (43) hinzuschaltet to take over the function of the power grid (41) and to provide power to the electric door drive (17); - In the door closer operation, the control unit (23, 23 ', 23 ") automatically causes a closing of the opened door leaf (13) by means of the mechanical energy storage device (21). Method according to claim 15,
characterized in that
In the power failure mode, opening and closing the safety door (11) as
in normal operation or in alarm mode or initially as in normal operation and after a predetermined time in alarm operation is performed.

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