EP3064692A1 - Locking device for a door - Google Patents

Abstract

1. locking arrangement (1) for a door (2), comprising - A trained to send a trigger signal tripping device (8), and a holding device (7) designed to lock the door (2) in the closed or open position, - wherein the locking arrangement (1) is designed to transmit the holding device (7) from a determining state to a releasing state when the triggering signal is emitted by the triggering device (8) by supplying electrical energy - wherein the locking assembly (1) comprises at least two mutually independent subsystems (25), wherein the holding device (7) of each subsystem (25) independently of the at least one remaining subsystem (25) from the determining state into the releasing state can be transferred.

Description

The invention relates to a locking arrangement for a door. Furthermore, the invention relates to a method for operating a locking arrangement.

Locking arrangements are widely used in building services engineering for door and gate systems, which are equipped with fire barriers in accordance with the applicable regulations. A locking arrangement consists of at least the following components: triggering device, power supply device and holding device. The locking arrangement allows a door equipped with a mounted door closer to be kept open either at a fixed or selected angle until it is electrically triggered. In previously known solutions, the individual components of the locking arrangement are connected to the building power network for power supply. In particular, when retrofitting or expanding existing buildings is a great effort by wiring with the building electricity network. In order to make the wiring optically acceptable, it may be necessary to pry up the walls and ceilings so that the cables can be laid "under plaster". In the case of historic building substances, this sometimes causes considerable damage through the retrofitting with locking arrangements for fire doors.

The invention has for its object to provide a locking arrangement, which avoids the aforementioned disadvantage, in particular to provide a locking arrangement that is easy to install. It is also an object of the invention to provide a suitable method for operating the locking arrangement.

The object is solved by the independent claim 1. Advantageous developments of the locking arrangement are given in the dependent device claims, the description and in the figures. Furthermore, the invention is also solved by the features of the independent method claim according to independent claim 13. Advantageous developments of the method are given in the dependent method claims, the description and in the figures. Features and details described in connection with the locking arrangement according to the invention also apply in connection with the method according to the invention and vice versa. The features mentioned in the description and in the claims may each be essential to the invention individually or in combination. In particular, a locking arrangement is provided with which the inventive method is executable, as well as a method that can be performed with the locking arrangement according to the invention.

Thus, the object is achieved by a locking arrangement for a door, which is designed to hold the door in the closed or open position. The term door also includes doors, gates and gates. The locking arrangement comprises a triggering device designed for transmitting a triggering signal, wherein the triggering device is in particular a smoke detector or a fire alarm. Alternatively or additionally, it is preferably provided that input devices and / or sensors can be connected to the triggering device. Furthermore, the locking arrangement comprises a holding device designed to lock the door in the closed or open position. It is provided that the locking arrangement is designed to transfer by supplying electrical energy, the holding device of a detecting state in a releasing state. In particular, it is possible that the holding device can be in the ascertaining and / or releasing state without the supply of electrical energy. Thus, the working current principle is realized. This enables energy-saving operation of the locking arrangement. Due to the energy-saving operation, it is possible to cabling to the To dispense with building electricity network and thus provide an easy to install Feststellanordnung. Under the state of the holding device is in particular a state understood, which serves to lock the door by the holding device. Under the releasing state is understood in particular a state in which the holding device has released the door, so that the door is movable, in particular closable, is. In the releasing state, in particular, a door actuator, in addition to the locking arrangement, is allowed to open or close the door from the previously held position. The transfer of the holding device from the determining to the releasing state thus serves in particular for releasing the door. Optionally, it can be provided that by supplying electrical energy, the holding device can be transferred from the releasing state into the ascertaining state.

In particular, after emitting a triggering signal by the triggering device, the holding device is transferred from the determining to the releasing state. By transferring into the releasing state, an additional door operator is allowed to open or close the door from the held position. The locking arrangement has at least two mutually independent subsystems, wherein the holding device of each subsystem can be transferred independently of the at least one remaining subsystem from the determining to the releasing state. Thus, a high reliability of the release is achieved, so that the door in case of danger, especially a fire, safely and reliably released. The locking device is particularly preferably battery operated and thus independent of an external power supply. The locking arrangement may comprise at least one battery or at least one accumulator as an energy storage unit. The locking arrangement is in particular free of an electrical connection to a building electricity network.

In particular, the locking arrangement comprises a holding device, which is designed to determine the door only in the open position. Accordingly, the Locking arrangement preferably designed to transmit when transmitting the trigger signal, the holding device in the releasing state, so that the door is closable.

The at least two subsystems are provided in particular since, according to the working current principle, electrical energy is required to release the door. In this case, if a subsystem fails, another subsystem transfers the holding device into the releasing state. Preferably, each subsystem receives the triggering signal of the triggering device.

Each subsystem preferably comprises a component of the holding device which can be flowed through by electric current, with the aid of which the releasing state is achieved. The component can, for. B. may be formed as a magnetic coil. By the component is an element of the holding device, for. B. an anchor, movable, through which the transfer takes place in the releasing state. For example, in this case a blockage of a holding mechanism of the holding device can be canceled. The component can be part of an actuator, z. As an electromagnet or an electric motor to be. Such a holding device is z .B. in the DE 10 2010 061 246 A1 which is fully incorporated by reference.

Preferably, each subsystem forms at least one circuit or is part of at least one circuit which extends from the reception of the triggering signal to the component of the holding device which can flow through electrically. Thus, each subsystem can in particular each independently after receiving the trigger signal cause the transfer to the releasing state. The holding device may also mechanical components such. B. have the anchor and the holding mechanism, which are preferably not part of the subsystem. In the locking state, the holding mechanism is preferably blocked.

Preferably, a single power supply for supplying the locking arrangement is provided with electrical energy. The energy supply preferably supplies all subsystems of the locking arrangement with electrical energy. The power supply is in particular at least one battery or at least one accumulator.

Furthermore, it is preferably provided that each subsystem of the locking arrangement has at least one magnetic coil and at least one control device provided for driving the magnetic coil. Particularly preferably, it is provided that each magnetic coil can be controlled by its own control device. In this case, provision is made in particular for the retaining device to be transferable, in particular reversible, from the ascertaining state into the releasing state by driving one of the magnet coils. In this case, the switching can be achieved by each of the magnetic coils.

Magnetic coils are preferably part of an electromagnet with which a holding mechanism can be blocked. The magnetic coils may in particular be designed to be wound in parallel. Alternatively, the magnetic coils are arranged one behind the other.

The electromagnet may in particular be part of a bistable electromagnetic system.

Furthermore, each subsystem preferably has at least one monitoring device, in particular monitoring electronics. Particularly preferably, each magnet coil is assigned its own monitoring device. The control device advantageously monitors an operating state of the magnetic coil via the monitoring device. Thus, defects or irregularities in the operation of the solenoid can be seen. Due to the at least double design of the magnetic coils and control devices, it is thus still possible, despite detected error in one of the magnetic coils, to transfer the holding device by means of the other magnetic coil in the releasing state. In order to avoid a failure of the locking arrangement is also preferred provided that the holding device is transferred to the releasing state, if a fault is detected in one of the magnetic coils.

By means of the monitoring device, a current intensity of the current flowing through the magnetic coil is preferably determined. Thus, the monitoring device itself can determine the electric current. Alternatively, it is provided that the control unit determines the current intensity at the monitoring device, so that the monitoring device only comprises an electrical resistance for the indirect determination of the current intensity. In particular, the current intensity is determined via a measurement of a voltage applied to the resistor.

The determination of the current takes place at each energization of the solenoid. Alternatively or additionally, it may be provided that the electrical current flowing through the magnet coil is determined by the monitoring device at predetermined intervals, which is stored in the control device. The predetermined distances can be identical in particular. Thus, for example, such a determination of the current intensity can be carried out every twenty four hours. In this way it can be determined whether a sufficient current flow through the magnetic coil is flowable, so that the magnetic coil can establish the releasing state in case of fire. For example, can be prevented as an error occurring the flow of current through the magnetic coil by an interruption of a circuit. To carry out the determination of the current strength, the magnetic coil is energized with such a polarity that the current is ineffective on the state of the holding device.

Particularly preferably, the locking device comprises an energy storage unit as a power supply. The energy storage unit may comprise one or more electrochemical energy stores. The electrochemical energy store can be designed as a battery or as an accumulator. The multiple energy storage can in series and / or be connected in parallel. For example, several, z. B. two, energy storage in series and the rows of energy storage each other in turn be connected in parallel. In particular, the energy storage unit may be formed as an energy storage package with multiple energy storage.

Each subsystem preferably has at least one energy buffer, in particular a capacitor. Particularly preferably, each magnetic coil is assigned its own energy buffer. In this case, electrical energy from the energy buffer, in particular via a power device, in particular a power electronics, the magnetic coil can be fed. The power device is designed in particular as a switch for adjusting the current flow direction. The power device is preferably controllable by the control device. The energy buffer is in particular designed to store at least that amount of energy which is necessary for the transfer to the releasing state. Preferably, at least twice the amount of energy in the intermediate energy storage can be stored. As a result, a secure transfer of the holding device in the releasing state is ensured even if the power supply is not enough energy to switch the solenoid available. In addition, it may be that only the intermediate energy storage can provide a sufficient current for the solenoid. The recommended maximum continuous current of an energy storage of the energy storage unit can be z. B., however, between 20 mA and 200 mA, preferably between 60 mA and 120 mA. The maximum pulsed discharge current of the energy store can be between 80 mA and 400 mA, preferably between 150 mA and 250 mA. As a result, the energy storage unit can be made particularly secure. The magnetic coil receives electrical energy preferably only via the energy buffer of the power supply.

It is advantageously provided that the energy storage unit is electrically connected to each control device via a respective storage device, in particular memory electronics. Alternatively or additionally, the energy storage unit is connected to each intermediate energy storage device via a respective voltage converter. Via the voltage converter, a higher electrical voltage can be generated in the energy buffer than in the energy storage unit. In particular, via the voltage converter, the control device can cause a charging of the energy buffer. Particularly preferably, energization of the magnetic coil is provided only via the energy buffer. Thus, the intermediate energy storage is arranged between the energy storage unit and the magnetic coil.

About the memory device, a state of charge of the energy storage unit itself can be detected for the control devices. This makes it clear when the energy storage unit has to be replaced. In particular, a voltage failure and / or an undervoltage of the energy storage unit can be detected via the storage device. Here, the storage device may include a voltage measuring point. In one embodiment, the storage device itself may determine an electrical voltage that characterizes the energy storage unit. Alternatively, it is provided that the control unit determines the voltage characterizing the energy storage unit by means of the storage device.

It is conceivable that the storage device comprises a capacitor. The capacitor may be provided to provide the respective control device with electrical energy in case of failure of the power supply unit. In particular, at least the amount of energy that is necessary for the control device to initiate the transfer of the holding device into the releasing state can be stored in the capacitor. Additionally or alternatively, the storage device may comprise a voltage conversion device for adapting the voltage of the energy storage unit to the voltage of the control device.

In a preferred embodiment, the triggering device is electrically connected to each control device. In particular, the trigger device sends out the trigger signal as soon as a fire or smoke condition has been detected. In addition, it is particularly preferred that the triggering device is battery operated. In particular, the energy storage unit can also supply the triggering device with electrical energy. Thus, it requires no wiring to an external power supply for the tripping device. Furthermore, the triggering device is advantageously carried out self-monitoring, whereby a reliable transmission of the trigger signal is ensured. The connection between the triggering device and the control devices is in particular a wired connection. Particularly advantageously, the triggering device includes a smoke alarm panel. In particular, the smoke detection center has its own smoke sensor and / or can be connected to additional smoke detectors and / or other signal transmitters. The smoke alarm panel is preferably connectable via a radio link with the additional smoke detectors and / or the other signalers.

Preferably, with the holding device, a sliding element can be detected and / or released within a slide rail. That is, in a transfer of the holding device from the locking to the releasing state, the sliding element is released, so that the sliding element is movable in the slide rail. The sliding element can be connected to the door. In the locking state, the sliding element is fixed in the slide by the holding device. Preferably, the holding device, in particular the holding mechanism, blocks the sliding element in the slide rail in the locking state. In the releasing state, the sliding element is movably arranged in the slide rail, so that the door is also movable.

Advantageously, the holding device on the anchor and the holding mechanism. The anchor and the holding mechanism are operatively connected. It may be that the armature can be brought by each of the magnetic coils in a first position, in the the holding mechanism blocks the sliding element. Here, the holding mechanism, for example, the sliding element form and / or non-positively include. It may also be that the armature can be brought by each of the magnetic coil in a second position in which the holding mechanism releases the sliding member. In this case, for example, the positive and / or frictional connection between the holding mechanism and the sliding element can be canceled. In the first position, the slider is detected within the slide rail. In the first and / or the second position, the armature may preferably be held by a permanent magnet. Therefore, no additional energy is needed to the door z. B. to keep noted.

For example, the armature is held in one of the positions by the permanent magnet, while the armature is held in the other position by the force of a spring. In order to move from one position to the other position, the force of the permanent magnet is at least as long overcome by means of the magnetic field generated by the magnetic coil until the armature is moved by the spring in the other position. In order to move the armature from the other position into the one position, the force of the spring is overcome by means of the magnetic field generated by the magnetic coil at least until the armature can be moved into the one position by the force of the permanent magnet.

Finally, the locking arrangement advantageously has a position sensor which detects a position of the movable element of the magnetic coil of the holding device, in particular of the armature. The position sensor is in particular a magnetic switch or a microswitch.

The control devices of the subsystems are preferably connected to one another via a data line for mutual monitoring. In particular, data can be exchanged via the data line, a status comparison can be made, and / or an error message can be sent to the respective other control device.

Further, the locking assembly may include a display device for displaying a defect.

The triggering device of the locking arrangement is in particular connectable to a, particularly preferred battery-operated, signal generator. This signal transmitter is in particular an optionally available fire detector or smoke detector of the locking arrangement. When the triggering device receives a signal from the signaler indicative of a detected fire, the triggering device transmits the triggering signal, thereby transferring the holding device to the releasing state. This allows a door operator connected to the door to act on the door. In particular, a closing or opening spring is provided in the door operator. The force of the prestressed spring is transmitted to the door when the locking device is triggered so that it opens or closes. The door operator is not part of the locking arrangement in particular.

Particularly preferably, the locking arrangement according to the invention is to be arranged on a fire door. In most cases, the fire door is kept open in normal operation. The locking assembly is then used in case of fire to release the door so that it is closed by a door closer. On the other hand, the locking arrangement can also cause the door to open by releasing the closed door and then automatically opening the door to release, for example, an escape route. In one embodiment, the locking assembly is only for releasing the door, so that the door is closed.

In a particularly preferred embodiment, it is provided that the signal generator and / or the triggering device and / or the holding device are exclusively battery operated. Thus, it requires no cable connection to the building electricity network for these three components.

The invention also relates to a method for operating a locking arrangement. The locking arrangement preferably corresponds to a locking arrangement described above. At least the locking arrangement comprises a holding device designed to lock the door. Thus, the door in the closed or open position can be determined with the holding device. Furthermore, the locking arrangement comprises at least two subsystems with a control device and at least one electrical element. In this case, the electrical element may be a magnetic coil and / or an energy buffer and / or a voltage converter. The method comprises the following steps: The control device of a subsystem monitors the electrical element of the subsystem. Thus, information about the state of the electrical element of the subsystem is available to the controller of each subsystem. A defect is therefore recognizable by the control device. Furthermore, a monitoring of the control device of a subsystem by the control device of another subsystem takes place. Thus, the control devices of the subsystems monitor each other so as to detect a defect of the control devices themselves. In a further step, it is determined that there is a defect in a subsystem. Therefore, when using this subsystem, it is not ensured that the holding device is transferred to a releasing state when the solenoid belonging to the subsystem is driven. Therefore, in a next step, the other subsystem is used so that the controller of the other subsystem drives the associated solenoid coil. In this way, the holding device is transferred to the releasing state. Preferably, it is additionally displayed on a display device that a defect is present.

The magnetic coil is preferably monitored via a power device as already described with respect to the locking arrangement according to the invention. If a predetermined current is not reached in the solenoid, a defect is detected.

With regard to the energy buffer, in particular the electrical voltage of the energy buffer is monitored. If it is not possible to generate a predetermined electrical voltage of the energy buffer in a given time window by charging, so a defect is detected.

With regard to the voltage converter, in particular the rate of charging of the energy buffer is monitored. If a predetermined charging speed is not achieved, a defect is detected.

Furthermore, it can be provided that the control devices of the subsystems monitor themselves. For this example, CPU and RAM test can be performed. In particular, the self-monitoring is carried out at regular, predetermined intervals. Alternatively or additionally, the monitoring of the other control device cyclically, that is. be carried out at regular, predetermined intervals. The distances can be stored in the control device. If an error occurs during monitoring, eg. B. detected in the CPU or RAM test, a defect in the corresponding subsystem is detected.

If a defect has been detected in one of the subsystems, another subsystem causes the holding device to be transferred from a determining state to a releasing state. Thus, the door can not remain in an undesired position if one of the subsystems fails. The predetermined current intensity in the magnetic coil, the predetermined electrical voltage of the intermediate energy storage device and / or the predefined speed for charging are stored in each case in particular in the control device.

If no defect is found, then the holding device z. B. transferred in case of fire only by one of the subsystems in the releasing state. Thus, the other subsystem is redundant.

In addition, it is preferably provided that the door is held by the holding device in an open position. Preferably, the door is held only in the open position. In a further step, a fire is finally detected by the triggering device. The detection can be carried out by the triggering device itself or by an optional signal generator connected to the triggering device. In a final step, the control device of a subsystem is used to drive the solenoid of the subsystem, so that the door is released from the holding device. In this way, a closing function for a fire door is realized because the otherwise kept open door is closed in case of fire.

In a further advantageous embodiment of the method, in addition, the remaining voltage of the energy storage unit, in particular the falling below a predefined minimum remaining voltage, displayed by the display device. Thus, a user is advised that the energy storage unit is to be changed. If the voltage of the energy storage unit continues to drop, the holding device is transferred to the releasing state.

Finally, it is preferably provided that the energy storage unit charges the intermediate energy storage. This is particularly advantageous because only the energy buffers store the magnetic coils with electrical energy while the energy storage unit charges the energy buffers. If charging by the energy storage unit fails, for example due to power failure or undervoltage of the energy storage unit, the remaining energy in the energy buffers electrical energy is used to transfer the holding device in the releasing state, to exclude that this is no longer possible by subsequent discharge of energy buffers.

Fig. 1

eine erfindungsgemäße Feststellanordnung gemäß einem Ausführungsbeispiel,

Fig. 2

ein schematisches Schaltbild der erfindungsgemäßen Feststellanordnung gemäß dem Ausführungsbeispiel,

Fig. 3

ein erfindungsgemäßes Verfahren, das in einer erfindungsgemäßen Feststellanordnung hinterlegt ist,

Fig. 4

ein Ausschnitt des erfindungsgemäßen Verfahrens, das in einer erfindungsgemäßen Feststellanordnung hinterlegt ist,

Fig. 5

ein weiterer Ausschnitt des erfindungsgemäßen Verfahrens, das in einer erfindungsgemäßen Feststellanordnung hinterlegt ist.

In the following the invention will be shown with reference to an embodiment and explained in more detail in the figures. This shows:

Fig. 1

a locking arrangement according to the invention according to an embodiment,

Fig. 2

a schematic diagram of the locking arrangement according to the invention according to the embodiment,

Fig. 3

a method according to the invention, which is stored in a locking arrangement according to the invention,

Fig. 4

a detail of the method according to the invention, which is stored in a locking arrangement according to the invention,

Fig. 5

a further detail of the method according to the invention, which is deposited in a locking arrangement according to the invention.

Fig. 1 shows a locking assembly 1 according to the embodiment. Shown is a door 2. At this door 2, in addition to the locking arrangement 1, a door operator 3, designed as a door closer, mounted. In the door operator 3, a closing spring is integrated. The force of the closing spring is transmitted from the closing spring via a linkage 4 to a sliding element 9. The sliding element 9 is guided in a slide rail 5 of the fixing arrangement 1 mounted on the side of the fall.

Furthermore, the locking arrangement 1 comprises a triggering device 8. This is designed as a smoke detector and / or fire alarm. Alternatively or additionally, the triggering device 8 with further signal transmitters 6 (see. FIG. 2 ) connectable, the signal generator 6 are mounted in particular on the ceiling. Another component of the locking arrangement 1 is a holding device 7, with which the sliding element 9 can be detected. By fixing the sliding element 9, the door 2 is preserved in the open position. A control of the holding device 7 is carried out by and within two subsystems 25, their structure and function with reference to below FIG. 2 is described. The holding device 7 is controlled by the subsystems 25 such that the sliding element 9 is detected until the triggering device 8 emits a triggering signal to the subsystems 25.

In the case of smoke or fire, this is detected by the triggering device 8 and / or by the external signal generators 6. The external signal generator 6 are coupled via radio to the tripping devices 8. The triggering device 8 generates the triggering signal when a fire or smoke has been detected. This trigger signal is forwarded to the subsystems 25, whereby the holding device 7 is transferred from a determining state SZ in the releasing state GZ and the sliding element 9 releases. Thus, the energy pre-stored in the closing springs of the door operator 3 can close the door leaves of the door 2.

FIG. 2 shows a schematic diagram of the Feststellanordnung 1. In the in FIG. 2 shown embodiment, two signal transmitters 6 are present, which communicate with the tripping device 8 via a radio link. The signal generator 6 are thus able to transmit a signal to the triggering device 8 when the signal transmitter 6 detect smoke or a fire. Likewise, the triggering device 8 is designed to detect a fire.

In addition, locking assembly 1 has two subsystems 25, wherein the triggering device 8 is connected to the subsystems 25. Therefore, the triggering device 8 is connected to two control devices 11. The control devices 11 have an identical function. The control devices 11 are in particular microcontrollers. The control devices 11 are connected to each other via a data line 20 for data exchange, so that a mutual monitoring of the control devices 11 is realized. This allows the detection of errors within one subsystem 25 by the other subsystem 25. Thus, redundancy is provided within the detection assembly 1. *** "

The control devices 11 are set up to control magnetic coils 10. Each subsystem 25 has at least one magnetic coil 10, so that each magnetic coil 10 of a subsystem 25 can be controlled by the control device 11 of the subsystem 25. The magnetic coils 10 are part of a holding device 7, with which an armature 22 is durable in at least two different positions, without having to be supplied from the outside energy. In particular, the holding device 7 has an electromagnet. The electromagnet holds the armature 22 in a first position until a current pulse on one of the magnetic coils 10 switches the electromagnet and thus converts the armature 22 into a second position different from the first position.

Thus, each control device 11 is arranged to apply a current pulse to a magnetic coil 10 in order to release the sliding element 9. For this purpose, each control device 11 is connected to a respective power device 16, wherein the power devices 16 emit electrical energy in each case according to the specifications of the control devices 11 to a magnetic coil 10 associated with the power device 16. By applying the magnetic coils 10 with electrical energy, the sliding element 9 is released. Thus, the locking assembly 1 is based on a working flow principle.

By using the working current principle, a reliable release in the case of receiving the triggering signal from the triggering device 8 must be ensured. Therefore, the locking assembly 1 in each subsystem 25 at least one monitoring device 17, in particular for each magnetic coil 10 has its own monitoring device 17 on. The monitoring device 17 checks whether the magnetic coil 10 assigned switching signals are implemented and / or if there is an interruption of the circuit of the magnetic coil 10. For this purpose, the monitoring device 17 of a subsystem 25 is electrically connected to the control device 11 of the subsystem 25. If a fault of the solenoid coil 10 of the subsystem 25 are detected, for example, an interruption in the circuit of the solenoid 10, so it is not guaranteed that a driving the solenoid 10, the slider 9 releases. Due to the presence of several subsystems 25 within the locking arrangement 1, however, a further magnetic coil 10 is present, so that the sliding element 9 can be released by controlling the further magnetic coil 10.

Furthermore, each subsystem has at least one energy buffer 15. The electrical energy required to operate the magnetic coils 10 is stored in the intermediate energy storage 15, wherein in particular each magnetic coil 10 is associated with an energy buffer 15. The energy buffer 15 is electrically connected to the power device 16 so that the electrical energy stored in the energy buffer 15 can be delivered to the solenoid 10 via the power device 16.

Each subsystem 25 also has at least one voltage converter 14, the intermediate energy storage devices 15 being charged via the voltage transformers 14, in particular each intermediate energy storage device 15, via a respective voltage converter 14, from a common energy storage unit 12. Only for a better overview is in FIG. 2 the energy storage 12 shown in three elements. The energy storage unit 12 is in particular a battery or an accumulator or a circuit of several batteries or accumulators. Thus, the locking assembly 1 is independent of an external power supply, such as a home network.

In addition, each subsystem 25 has at least one storage device 13, wherein the energy storage unit 12 is connected to the control devices 11 via the storage devices 13. By means of the memory device 13, a voltage failure and / or an undervoltage of the energy storage unit 12 is detected detected. Should a state of the energy storage unit 12 be detected by means of one of the storage device 13, which does not allow a reliable charging of the energy buffer 15, the control devices 11 then control the magnetic coils 10 such that the Sliding element 9 is released. Thus, it is prevented that the sliding member 9 is held by the locking assembly 1 and due to a failure of the energy storage unit 12, a transfer to the releasing state GZ is no longer possible.

The memory device 13 further comprises a respective capacitor, with which the respective associated control device 11 can be supplied with electrical energy.

In addition, the locking arrangement 1 advantageously has a display device 18, with which the state of each magnetic coil 10 and / or the energy storage unit 12 can be displayed. Furthermore, a push button 19 is preferably provided.

Finally, the locking arrangement 1 has a position sensor 23 which detects a position of the armature 22. The position sensor 23 is in particular a magnetic switch, for. B. a reed switch.

In order to be able to use the locking arrangement 1 safely and reliably even when using the working flow principle, monitoring of the locking arrangement is advantageous. Therefore, there is a constant monitoring of the solenoid coil 10 and the energy buffer 15 of a subsystem 25 by the controller 11 of the subsystem 25 instead. This means that the control devices 11 of each subsystem 25 always have information about the state of the components of the subsystem 25. In particular, this information is exchanged via all control devices 11. In addition, a monitoring of the control device 11 of a subsystem 25 by the control device 11 of the other subsystem 25 takes place. This serves to detect failures of control devices 11 themselves. Finally, it is determined that a defect in the magnetic coil 10, the energy buffer 15 or the control device 11 of a subsystem 25 is present, the other subsystem 25 is used to release the slider 9.

FIG. 3 shows an embodiment of a method 30 according to the invention, which by means of the locking arrangement 1 of FIGS. 1 and 2 is performed. Here, a part of the locking assembly 1 is shown again: namely, the two subsystems 25, the in FIG. 3 be referred to as the first subsystem 25.1 and 25.2 as a second subsystem. The subsystems 25.1 and 25.2 each include the control devices 11, which respectively monitor the magnetic coil 10 and the energy buffer 15 of the respective subsystem 25.1, 25.2 according to the arrows 32 and 33. Furthermore, the control devices 11 monitor themselves, which is indicated by the arrows 31. The control devices 11 monitor each other according to the arrow 34.

If the control device 11 of the first subsystem 25.1 determines that a defect has occurred in the first subsystem 25.1, then the control device 11 of the second subsystem 25.2 is informed by the control device 11 of the first subsystem 25.1. Then, the control device 11 of the second subsystem 25.2 causes the transfer of the holding device 7 in the releasing state GZ. If the control device 11 of the second subsystem 25.2 accordingly determines that a defect has occurred in the second subsystem 25.2, then the control device 11 of the first subsystem 25.1 is informed by the control device 11 of the second subsystem 25.2, which then transfers the holding device 7 to the releasing one Condition GZ prompted. Also, a transfer of the holding device 7 is caused in the releasing state GZ when the control device 11 of the first subsystem 25.1 detects a defective control device 11 of the second subsystem 25.2 or the control device 11 of the second subsystem 25.2 a defective control device 11 of the first subsystem 25.1. In this case, the transfer is made by the non-defective control device 11.

FIG. 4 and FIG. 5 contain details of how the control devices 11 can each monitor the intermediate energy storage 15 and the magnetic coil 10.

In FIG. 4 a method 40 is shown in which in each case the magnetic coil 10 is to be energized test half. For this purpose, the position of the armature 22 must first be determined in a method step 41 by the position sensor 23 and thereby determined whether the holding device 7 is in the ascertaining state SZ or in the releasing state GZ. Accordingly, in a method step 42 in a test T, the magnetic coil 10 is energized by the power device 16 in such a way that the current flowing through the magnetic coil 10 has no effect on the state of the holding device 7. The test T is performed for a predetermined discharge period Δt ₂ . During the test T, the current intensity I _{1 is} measured by the monitoring device 17 in a method step 43. The control unit 11 checks in a method step 44 whether the current intensity I _{1 is} in a value range I ₀ , I ₂ with I ₀ <I ₁ <I ₂ . This is not the case, what is in FIG. 4 is marked with a "-", the holding device 7 is transferred by the other subsystem 25.1, 25.2 in the releasing state GZ, which corresponds to the method step 45.

Also, a voltage value U ₂ , which is characteristic of the energy buffer 15, determined before and after the discharge time .DELTA.t _{2 of} the test T. A corresponding measuring point can be located between the energy buffer 15 and the power device 16. From the determined voltage values U ₂ , a voltage value difference, ie a voltage drop ΔU _{2, is} calculated in a method step 46. Subsequently, it is checked in a method step 47 whether the voltage drop ΔU _{2 is} greater than a maximum value ΔU _V. Is this the case, what is in FIG. 4 is marked with a "+", the holding device 7 is transferred to the releasing state GZ by the other subsystem 25.1, 25.2 according to method step 45. This prevents that in the case of an energy buffer 15, which has aged and can store only a small amount of electrical energy, in case of fire, the holding device 7 must be transferred to the releasing state GZ.

If the current I ₁ lies in a value range I ₀ , I ₂ , which is in FIG. 4 is shown with a "+" and the voltage drop .DELTA.U _{2 is} smaller than a maximum value .DELTA.U _V , the method 40 is only restarted at a predetermined time interval .DELTA.t ₃ .

In FIG. 5 another method 50 for monitoring the energy buffer 15 is shown. In order to have sufficient electrical energy available in the energy buffer 15, a voltage value U ₂ for the energy buffer 15 is determined in accordance with method step 51 of the energy buffer 15 at predetermined time intervals Δt ₅ . In a method step 52, it is checked whether the determined voltage value U ₂ falls below a setpoint voltage value U _V2 by a predetermined amount B. If this is the case, what is in FIG. 5 is characterized by a "+", it is trying to recharge the intermediate energy storage 15 according to the method step 53. This is not the case, what is in FIG. 5 is characterized by a "-", a new determination of U _{2 is} performed in the predetermined time interval .DELTA.t ₅ . In the case of a charge is checked in a step 54, if time t (U ₂ = U _V2 ) for charging the intermediate energy storage 15 to the target voltage value U _V2 within a predetermined time window .DELTA.t ₄ . Here, the time window Δt _{4 has} both an upper limit t _above and a lower limit t _below in the second range. Ie. the charge can be too slow, z. B. because the voltage converter 14 is defective, or too fast, z. B. because the energy buffer 15 has too little capacity. If the charge is not in the time window Δt ₄ , which is in FIG. 5 is marked with "-", the holding device 7 is transferred in the releasing state GZ by the other subsystem 25.1, 25.2 in a method step 55. Otherwise, the routine is repeated at the predetermined time intervals Δt ₅ .

t _down and t _above may be selected depending on the predetermined amount B to be _dropped and the capacity of the intermediate energy storage device 15. As a value, t _below z. B. between 0.1 s and 10 s, preferably between 1 s and 4 s. As a value, t can be stored at the _{top of} z. B. between 10 s and 60 s, preferably between 5 s and 30 s. For example, the predetermined time window Δt ₄ may be given by 0.1 s = t _down ≤ Δt ₄ ≤ 60 s = t _above or 1s = t _down ≤ Δt ₄ ≤ 30 s = t _above or 3 s = t _down ≤ Δt ₄ ≤ 16 s = t _above . In particular, by the lower limit t _below an aging of the intermediate energy storage 15 by 10% to 50%, preferably by 20% to 40% account.

The predetermined discharge time .DELTA.t ₂ can be a very reduced period of time to 12 to avoid unnecessary discharge the energy storage unit. For example, the predetermined discharge time Δt ₂ can be specified as a time between 10 ms and 2 s, preferably between 20 ms and 80 ms.

It may be sufficient to choose the predetermined time interval Δt ₃ as a large time interval. For example, Δt ₃ may be selected as a value from the interval 2 h ≦ Δt ₃ ≦ 48 h, preferably 6h ≦ Δt ₃ ≦ 36 h, particularly preferably 12h ≦ Δt ₃ ≦ 30 h.

The predetermined time interval Δt ₅ can be selected as a value from an interval with 2 s ≦ Δt ₅ ≦ 20 s, preferably 4 s ≦ Δt ₅ ≦ 12 s. In particular, Δt ₅ can be 8s.

The lower limit I ₀ and the upper limit I ₂ for the current I _magnet are of the current required for the solenoid 10 and / or preferred, for. B. of the rated current, depending. The lower limit I ₀ can z. B. be chosen so that the magnetic coil 10 above the lower limit I ₀ generates a sufficient magnetic field 10 for the transfer of the holding device 7 in the releasing state GZ. The upper limit I ₂ can z. B. be chosen so that above the upper limit I _{2 is} a short-circuit current. For example, the lower limit I ₀ as a value from the interval 0.5 * I _magnet ≤ I ₀ ≤ 0.95 * I _magnet , preferably 0.6 * I _magnet ≤ I ₀ ≤ 0.9 * I _magnet , preferably 0 , 75 * I _magnet ≤ I ₀ ≤ 0.85 * I _magnet selected. For example, the upper limit I ₂ as a value of the interval 1.3 * I _magnet ≤ I ₂ ≤ 3 * I _magnet , preferably 1.5 * I _magnet ≤ I ₂ ≤ 2.5 * I _magnet , preferably 1.7 * I _magnet ≤ I ₀ ≤ 2.2 * I _magnet selected. By way of example only, the lower limit I _{0 can} be a value from the interval 300 mA ≦ I ₀ ≦ 575 mA, preferably 350 mA ≦ I ₀ ≦ 550 mA, more preferably 400 mA ≦ I ₀ ≦ 500 mA be selected. The upper limit I _{2 should be selected} as a value from the interval 800 mA ≦ I ₂ ≦ 2000 mA, preferably 1000 mA ≦ I ₂ ≦ 1500 mA. It is conceivable that different current intensities are required for the magnet coil of each subsystem 25.1, 25.2.

The maximum value .DELTA.U _V can be selected such that an aging of the capacitance of the capacitor element by 10% to 50%, preferably by 20% to 40% is taken into account. Accordingly, the maximum value ΔU _V may correspond to a value of 1.1 to 2 times, preferably 1.25 to 1.7 times, the voltage drop of the non-aged capacitor element for the predetermined discharging period. For example, the maximum value ΔU _{V may be} a value between 0.3 V and 1 V.

The target voltage value U _V2 is to be selected such that, depending on the capacity of the energy buffer 15 used, the charge amount for transferring the holding device 7 into the releasing state GZ is sufficient. The amount of charge is preferably sufficient for an n-fold transfer to the releasing state GZ, where n is selected from the range 2 ≦ n ≦ 4, preferably 2 ≦ n ≦ 10. For example, U _V2 may be a value from a range of 8V ≦ U _V2 ≦ 16V, preferably 10V ≦ U _V2 ≦ 14V.

The amount B by which the determined voltage value U ₂ may fall below the set voltage value U _V2 without charging can be selected as a value from the interval 0.05 U _V2 ≦ B ≦ (n-1) / n U _V2 . Additionally or alternatively, the amount B may be a value from an interval 0.05 U _V2 ≦ B ≦ 0.4 U _V2 , preferably 0.05 U _V2 ≦ B ≦ 0.2 U _V2 , particularly preferably 0.05 U _V2 ≦ B ≤ 0.1 U _V2 . For example, B may be chosen as a value between 0.5V and 1.5V.

LIST OF REFERENCE NUMBERS

1

Locking assembly

2

door

3

door actuators

4

linkage

5

slide

6

signaler

7

holder

8th

triggering device

9

Slide

10

solenoid

11

control device

12

Energy storage unit

13

storage device

14

DC converter

15

Storage of energy

16

power device

17

monitoring device

18

display device

19

button

20

data line

22

anchor

23

position sensor

25

subsystem

30

method

31-34

monitoring arrows

40

method

41 to 45

steps

50

method

51 to 55

steps

SZ

determining condition

GZ

releasing condition

U ₂

Voltage value for 15

U _V2

Target voltage value

B

amount

t

Time to reach the set voltage value

I ₁

measured current

I ₀ , I ₂

Limits of the range of values

T

test

ΔU ₂

Voltage drop for 15

ΔU _V

maximum value

Δt ₂

predetermined discharge period

Δt ₃

predetermined time interval

Δt ₄

given time window

.delta.t ₅

predetermined time interval

Claims (16)

Locking arrangement (1) for a door (2), comprising - A trained to send a trigger signal tripping device (8), and a holding device (7) designed to lock the door (2) in the closed or open position, - wherein the locking arrangement (1) is designed to transmit the holding device (7) from a determining state (SZ) to a releasing state (GZ) when the triggering signal is emitted by the triggering device (8) by supplying electrical energy, - wherein the locking assembly (1) comprises at least two mutually independent subsystems (25), wherein the holding device (7) of each subsystem (25) independently of the at least one remaining subsystem (25) from the determining state (SZ) in the releasing state (GZ) is transferable. Locking arrangement (1) according to claim 1, characterized by a single power supply, in particular a battery or a rechargeable battery, for the supply of electrical energy, in particular for the supply of all subsystems (25) with electrical energy. Locking arrangement (1) according to one of the preceding claims, characterized in that each subsystem (25) has at least one magnetic coil (10), and one for controlling the magnetic coil (10) provided control device (11), wherein by means of the magnetic coil (10) Holding device (7) from the determining state in the releasing state (GZ) can be transferred. Locking arrangement (1) according to any one of the preceding claims, characterized in that each subsystem (25) at least one Monitoring device (17), wherein in particular each magnetic coil (10) is associated with its own monitoring device (17), and wherein an operating state of the magnetic coil (10) of the control device (11) via the monitoring device (17) can be monitored. Locking arrangement (1) according to any one of the preceding claims, characterized in that each subsystem (25) has at least one energy buffer (15), wherein in particular each magnetic coil (10) is associated with an energy buffer (15), and wherein electrical energy from the energy buffer ( 15) via a power device (16) which is controllable by the control device (11) of the respective subsystem (25), the magnetic coil (10) of the respective subsystem (25) can be fed. Locking arrangement (1) according to one of the preceding claims, characterized by an energy storage unit (12), in particular at least one accumulator or a battery, wherein the energy storage unit (12) via a respective storage device (13) with each control device (11) and / or over each a voltage converter (14) is electrically connected to each energy buffer (15). Locking arrangement (1) according to one of the preceding claims, characterized in that the triggering device (8) comprises a smoke sensor and / or a fire sensor, wherein the triggering device (8) emits the trigger signal when a fire detected by the smoke sensor and / or the fire sensor is. Locking arrangement (1) according to one of the preceding claims, characterized in that the holding device (7) has an armature (22), and a permanent magnet, wherein the armature (22) and the permanent magnet (24) together with the magnetic coils (10) form bistable electromagnetic system, so by driving at least one of the magnetic coils (10) of the armature (22) is convertible from a first stable position to a second stable position. Locking arrangement (1) according to any one of the preceding claims, characterized in that the holding device (7) has a position sensor (23), wherein with the position sensor (23) a position of a by the magnetic coil (10) movable element of the holding device (7), in particular, the position of the armature (22) can be detected. Locking arrangement (1) according to one of the preceding claims, characterized in that a sliding element (9) within a slide rail (5) is lockable and / or releasable with the holding device (7). Locking arrangement (1) according to one of the preceding claims, characterized in that the locking arrangement (1) is exclusively battery-operated and have no cable connection to the building electricity network. Locking arrangement (1) according to one of the preceding claims, characterized in that at least one external signal generator (6), in particular a smoke detector or fire detector, with the triggering device (8) is connectable, in particular wirelessly connectable. Method for operating a locking arrangement (1) comprising - A trained for fixing the door (2) in the closed or open position holding device (7), and at least two subsystems (25) each with a control device (11) and with at least one electrical element,
characterized by the steps: - Monitoring the electrical element of a subsystem (25) by the control device (11) of the subsystem (25), and / or Monitoring the control device (11) of one subsystem (25) by the control device (11) of another subsystem (25), - determining that there is a defect in a subsystem (25), and - Using another subsystem (25) for driving the holding device (7). Method according to claim 13, characterized by the steps: Holding the door (2) in an open position by the holding device (7), Detecting a fire by a triggering device (8), - Using the control device (11) of a subsystem for driving a solenoid (10) of the subsystem, so that the door (2) of the holding device (7) is released. A method according to claim 13 or 14, characterized in that a remaining voltage of the energy storage unit (12), in particular the falling below a predefined minimum remaining voltage, by a display device (18) is displayed. Method according to one of claims 13 to 15, characterized in that the energy storage unit (12) the intermediate energy storage (15) charges, wherein in a generation of a predetermined electrical voltage of the energy buffer (15) outside a predetermined time window, the holding device (7) in a releasing State (GZ) is transferred ..

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