DE102015102911A1 - Locking arrangement for a door - Google Patents

Abstract

Locking arrangement (1) for a door (2), comprising - a triggering device (8) designed to send a triggering signal, and - a holding device (7) designed to lock the door (2) in the closed or open position, - the locking arrangement ( 1) is designed, upon transmission of the trigger signal by the triggering device (8) by supplying electrical energy to transfer the holding device (7) from a locking state to a releasing state, - wherein the locking arrangement (1) at least two independent subsystems (25) comprising, 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 dispense with a wiring to the building electricity network and thus provide a mounting-friendly 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 trigger signal by the triggering device, the holding device of the Convicted in the releasing state convicted. 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 is preferably designed to transmit the holding device in the releasing state when the trigger signal is emitted, so that the door can be closed.

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 eg 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 power 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 preferably provided that the holding device is transferred to the releasing state, if an error 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 plurality of energy stores can be connected in series and / or 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 include a Voltage conversion device for adjusting the voltage of the energy storage unit to the voltage of the control device include.

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 any of the magnetic coils in a first position in which 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 may be cyclic, i. 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 by the triggering device itself or by an optionally provided 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.

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

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

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

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

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

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

1 shows a locking arrangement 1 according to the embodiment. Shown is a door 2 , At this door 2 is next to the locking arrangement 1 a door operator 3 , designed as 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 on a sliding element 9 , The sliding element 9 is in a side mounted slide rail 5 the locking arrangement 1 guided.

Furthermore, the locking arrangement comprises 1 a triggering device 8th , This is designed as a smoke detector and / or fire alarm. Alternatively or additionally, the triggering device 8th with further signalers 6 (see. 2 ) connectable, the signal generator 6 especially mounted on the ceiling. Another component of the locking arrangement 1 is a holding device 7 with which the sliding element 9 is detectable. By fixing the sliding element 9 is the door 2 Durable in the open position. A control of the holding device 7 is done by and within two subsystems 25 whose structure and function are described below with reference to 2 is described. The holding device 7 is from the subsystems 25 controlled such that the sliding element 9 until the triggering device is detected 8th a trigger signal to the subsystems 25 sending out.

In the event of smoke or fire, this will be from the triggering device 8th and / or from the external signalers 6 detected. The external signal generator 6 are via radio to the tripping devices 8th coupled. The triggering device 8th generates the trigger signal when a fire or smoke has been detected. This trigger signal is sent to the subsystems 25 forwarded, causing the holding device 7 is transferred from a determining state SZ in the releasing state GZ and the sliding member 9 releases. Thus, in the closing springs of the door operator 3 pre-stored energy the door leaves the door 2 shut down.

2 shows a schematic diagram of the locking arrangement 1 , In the in 2 embodiment shown are two signal generators 6 present, via a radio link with the triggering device 8th communicate. The signalers 6 are thus able to send a signal to the triggering device 8th to transmit when the signalers 6 Detect smoke or a fire. Likewise, the triggering device 8th trained to detect a fire.

It also has locking arrangement 1 two subsystems 25 on, with the triggering device 8th with the subsystems 25 connected is. Therefore, the triggering device 8th with two control devices 11 connected. The control devices 11 to have an identical function. The control devices 11 are in particular microcontrollers. The control devices 11 are over a data line 20 connected to the data exchange, so that a mutual monitoring of the control devices 11 is realized. This allows the detection of errors within the one subsystem 25 through the other subsystem 25 , Thus, there is redundancy within the locking arrangement 1 given.

The control devices 11 are set up so magnetic coils 10 head for. Every subsystem 25 has at least one magnetic coil 10 on, so every solenoid 10 a subsystem 25 from the control device 11 of the subsystem 25 is controllable. The magnetic coils 10 are part of a holding device 7 with which an anchor 22 is durable in at least two different positions, without having to be supplied with energy from the outside. In particular, the holding device 7 an electromagnet on. The electromagnet holds the anchor 22 so long in a first position, until a current pulse on one of the solenoid coils 10 switches the solenoid and thus the armature 22 transferred to a different position from the first position second position.

Thus, each control device 11 furnished, a magnetic coil 10 to apply a current pulse to the sliding element 9 release. This is every control device 11 each with a power device 16 connected, wherein the power devices 16 electrical energy according to the specifications of the control devices 11 to one of the power device 16 associated magnetic coil 10 submit. By applying the magnetic coils 10 with electrical energy becomes the sliding element 9 Approved. Thus, the locking arrangement is based 1 on a working current principle.

By using the working current principle, reliable release must be obtained in the event of receiving the trip signal from the trip device 8th to be guaranteed. Therefore, the locking arrangement 1 in every subsystem 25 at least one monitoring device 17 , in particular for each solenoid 10 a separate monitoring device 17 , on. The monitoring device 17 Check if the magnet coil 10 assigned switching signals are implemented and / or if an interruption of the circuit of the solenoid 10 is present. This is the monitoring device 17 a subsystem 25 with the control device 11 of the subsystem 25 electrically connected. Should be a fault of the solenoid 10 of the subsystem 25 be recognized, for example, a break in the circuit of the solenoid 10 , so it is not guaranteed that driving the solenoid 10 the sliding element 9 releases. Due to the presence of multiple subsystems 25 within the locking arrangement 1 However, it is another solenoid 10 present, so that the sliding element 9 by driving the other solenoid 10 is releasable.

Furthermore, each subsystem has at least one energy buffer 15 on. The for operating the magnetic coils 10 required electrical energy is in the energy buffer 15 stored, in particular each solenoid 10 an energy cache 15 assigned. The energy cache 15 is electrical with the power device 16 connected, so that the electrical energy stored in the energy buffer 15 is stored on the power device 16 to the solenoid 10 is deliverable.

Every subsystem 25 also has at least one voltage transformer 14 on, with the energy buffers 15 over the voltage transformers 14 , in particular any intermediate energy storage 15 each with its own voltage transformer 14 from a common energy storage unit 12 getting charged. Only for a better overview is in 2 the energy store 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 arrangement 1 independent of an external power supply, such as a home network.

In addition, each subsystem assigns 25 at least one storage device 13 on, with the energy storage unit 12 about the storage devices 13 with the control devices 11 connected is. By means of the storage device 13 is a voltage failure and / or an undervoltage of the energy storage unit 12 detected executed. Should be a state of energy storage unit 12 by means of one of the storage device 13 be detected, the reliable charging of energy buffers 15 not allowed, so control the control devices 11 then the magnetic coils 10 such that the sliding element 9 is released. This prevents the sliding element 9 from the locking arrangement 1 is held and due to a failure of the energy storage unit 12 a transfer to the releasing state GZ is no longer possible.

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

In addition, the locking arrangement 1 advantageously a display device 18 on, with which the state of each solenoid 10 and or the energy storage unit 12 is representable. Furthermore, a push button is preferred 19 intended.

Finally, the locking arrangement 1 a position sensor 23 on, a position of the anchor 22 detected. The position sensor 23 is in particular a magnetic switch, z. B. a reed switch.

To the locking arrangement 1 To be able to use safely and reliably even when using the working flow principle, a monitoring of the locking arrangement is advantageous. Therefore, there is a constant monitoring of the solenoid 10 and the energy cache 15 a subsystem 25 through the the control device 11 of the subsystem 25 instead of. This means that the control devices 11 every subsystem 25 always information about the state of the components of the subsystem 25 have. In particular, this information is about all the control devices 11 replaced. In addition, monitoring of the control device takes place 11 a subsystem 25 through the control device 11 of the other subsystem 25 instead of. This serves to failures of control devices 11 to recognize yourself. Eventually it is determined that there is a defect in the solenoid 10 , the energy cache 15 or the control device 11 a subsystem 25 is present, then becomes the other subsystem 25 used to the sliding element 9 release.

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

Represents the control device 11 of the first subsystem 25.1 notice that there is a defect in the first subsystem 25.1 has occurred, the control device 11 of the second subsystem 25.2 through the control device 11 of the first subsystem 25.1 informed. Thereupon, the control device causes 11 of the second subsystem 25.2 the transfer of the holding device 7 in the releasing state GZ. Set accordingly the control device 11 of the second subsystem 25.2 notice that there is a defect in the second subsystem 25.2 has occurred, the control device 11 of the first subsystem 25.1 through the control device 11 of the second subsystem 25.2 informed, then the transfer of the holding device 7 in the releasing state GZ prompted. Also, a transfer of the holding device 7 in the releasing state GZ causes when the control device 11 of the first subsystem 25.1 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 detected. Here, the transfer by the non-defective control device 11 performed.

4 and 5 contain details, such as the control devices 11 each the energy buffer 15 and the magnetic coil 10 can monitor.

In 4 is a procedure 40 represented, in which in each case the magnetic coil 10 for test purposes. For this purpose must first in a procedural step 41 through the position sensor 23 the position of the anchor 22 determined and thereby determined whether the holding device 7 is in the determining state SZ or in the releasing state GZ. Accordingly, in one process step 42 in a test T the solenoid 10 through the power device 16 so energized that by the magnetic coil 10 flowing current ineffective on the state of the holding device 7 is. The test T is performed for a predetermined discharge period Δt ₂ . During the test T will be in one step 43 the current I ₁ by means of the monitoring device 17 measured. The control unit 11 checked in a procedural 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 4 marked with a "-", the holding device 7 through the other subsystem 25.1 . 25.2 transferred to the releasing state GZ, what the process step 45 equivalent.

Also, a voltage value U ₂ , which for the energy buffer 15 is characteristic, before and after the discharge time .DELTA.t _{2 of} the test T determined. A corresponding measuring point can be located between the energy buffer 15 and the power device 16 are located. From the determined voltage values U ₂ is in one step 46 a voltage value difference, ie a voltage drop .DELTA.U ₂ calculated. Subsequently, in a process step 47 checks whether the voltage drop ΔU _{2 is} greater than a maximum value ΔU _V. Is this the case, what is in 4 is marked with a "+", then the holding device 7 in the releasing state GZ by the other subsystem 25.1 . 25.2 according to method step 45 transferred. This prevents that in the case of an energy buffer 15 which has aged and only a small amount of electrical energy can store, 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 4 is shown with a "+" and the voltage drop .DELTA.U _{2 is} smaller than a maximum value .DELTA.U _V , so only in a predetermined time interval .DELTA.t _3, the method 40 restarted.

In 5 is another procedure 50 for monitoring the energy buffer 15 shown. To get enough electrical energy in the energy buffer 15 to be available, according to the method step 51 the energy cache 15 at predetermined time intervals Δt _5, a voltage value U ₂ for the energy buffer 15 determined. In one process 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 5 is marked by a "+", then the energy buffer is tried 15 according to the method step 53 recharge. This is not the case, what is in 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 in one step 54 checks whether time t (U ₂ = U _V2 ) for the charging of the energy buffer 15 to the target voltage value U _V2 within a predetermined time window .DELTA.t ₄ takes place. 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 of the voltage converter 14 is defective, or too fast, z. B. because of the energy buffer 15 has too low a capacity. If the charge is not in the time window Δt _4, which is in 5 is denoted by "-" is in a process step 55 the holding device 7 in the releasing state GZ by the other subsystem 25.1 . 25.2 transferred. Otherwise, the routine is repeated at the predetermined time intervals Δt ₅ .

t _down and t _above may vary depending on the predetermined amount B to be _dropped and the capacity of the intermediate energy storage 15 be elected. 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 be selected. 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, due to the lower limit t _{at the bottom,} an aging of the intermediate energy storage device 15 by 10% to 50%, preferably by 20% to 40%.

The predetermined discharge time .DELTA.t ₂ may be a very small amount of time to the energy storage unit 12 not to unload unnecessarily. 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 a value from the interval 2 h ≦ Δt ₃ ≦ 48 h, preferably 6 h ≦ Δt ₃ ≦ 36 h, particularly preferably 12 h ≦ 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 special Δt ₅ ≦ 12 s. In particular Δt be ₅ 8s.

The lower limit I ₀ and the upper limit I ₂ for the amperage I _magnet are of the amperage applicable to the solenoid coil 10 needed 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 a sufficient magnetic field 10 for the transfer of the holding device 7 generated 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 of 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 can be} 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 may be selected} as 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. 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 for the magnetic coil of each subsystem 25.1 . 25.2 different currents are needed.

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 discharge time 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 used 15 the amount of charge for the transfer of the holding device 7 is sufficient in the releasing state GZ. 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) / nU _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

Δt ₅

predetermined time interval

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102010061246 A1 [0009]

Claims (16)

Locking arrangement ( 1 ) for a door ( 2 ), comprising - a tripping device configured to transmit a tripping signal ( 8th ), and - one to lock the door ( 2 ) in closed or open position holding device ( 7 ), - wherein the locking arrangement ( 1 ) is formed, upon transmission of the trigger signal by the triggering device ( 8th ) by supplying electrical energy, the holding device ( 7 ) from a determining state (SZ) to a releasing state (GZ), - wherein the locking arrangement ( 1 ) at least two independent subsystems ( 25 ), wherein the holding device ( 7 ) of each subsystem ( 25 ) independent of the at least one remaining subsystem ( 25 ) can be transferred from the determining state (SZ) to the releasing state (GZ). Locking arrangement ( 1 ) according to claim 1, characterized by a single energy 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 ) at least one magnetic coil ( 10 ), and one for driving the magnetic coil ( 10 ) provided control device ( 11 ), wherein by means of the magnetic coil ( 10 ) the holding device ( 7 ) can be transferred from the determining state to the releasing state (GZ). Locking arrangement ( 1 ) according to one of the preceding claims, characterized in that each subsystem ( 25 ) at least one monitoring device ( 17 ), in particular each magnet coil ( 10 ) own monitoring device ( 17 ), and wherein an operating state of the magnetic coil ( 10 ) from the control device ( 11 ) via the monitoring device ( 17 ) is monitorable. Locking arrangement ( 1 ) according to one of the preceding claims, characterized in that each subsystem ( 25 ) at least one energy buffer ( 15 ), in particular each magnet coil ( 10 ) an energy buffer ( 15 ), and wherein electrical energy from the energy buffer ( 15 ) via a power device ( 16 ) generated by the control device ( 11 ) of the respective subsystem ( 25 ) is controllable, 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 via a respective voltage transformer ( 14 ) with each energy buffer ( 15 ) is electrically connected. Locking arrangement ( 1 ) according to one of the preceding claims, characterized in that the triggering device ( 8th ) comprises a smoke sensor and / or a fire sensor, wherein the triggering device ( 8th ) emits the trip signal when a fire is detected by the smoke sensor and / or the fire sensor. Locking arrangement ( 1 ) according to one of the preceding claims, characterized in that the holding device ( 7 ) an anchor ( 22 ), and a permanent magnet, wherein the armature ( 22 ) and the permanent magnet ( 24 ) together with the magnetic coils ( 10 ) form a bistable electromagnetic system, so that by controlling at least one of the magnetic coils ( 10 ) the anchor ( 22 ) can be transferred from a first stable position to a second stable position. Locking arrangement ( 1 ) according to one of the preceding claims, characterized in that the holding device ( 7 ) a position sensor ( 23 ), wherein with the position sensor ( 23 ) a position of a through the magnetic coil ( 10 ) movable element of the holding device ( 7 ), in particular the position of the anchor ( 22 ), is detectable. Locking arrangement ( 1 ) according to one of the preceding claims, characterized in that with the holding device ( 7 ) a sliding element ( 9 ) within a slide rail ( 5 ) is detectable and / or releasable. Locking arrangement ( 1 ) according to one of the preceding claims, characterized in that the locking arrangement ( 1 ) is battery operated only and has 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 ( 8th ) is connectable, in particular wirelessly connectable. Method for operating a locking arrangement ( 1 ) full - one to lock the door ( 2 ) in closed or open position holding device ( 7 ), and - at least two subsystems ( 25 ) each having a control device ( 11 ) and at least one electrical element, characterized by the steps of: - 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 a subsystem ( 25 ) by the control device ( 11 ) of another subsystem ( 25 ), - determining that a defect in a subsystem ( 25 ), and - using a different 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 ( 8th ), - using the control device ( 11 ) of a subsystem for controlling a magnetic coil ( 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 falling below a predefined minimum remaining voltage, from a display device ( 18 ) is shown. Method according to one of claims 13 to 15, characterized in that the energy storage unit ( 12 ) the energy buffers ( 15 ), wherein at one generation of a predetermined electrical voltage of the energy buffer ( 15 ) outside a predetermined time window, the holding device ( 7 ) is transferred to a releasing state (GZ).

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