EP2871307B1 - Power reserve for a motor operated lock - Google Patents

Description

The present invention relates to a motor-operated lock and a device for a power supply door of the motor-operated lock according to the preamble of claim 1, wherein the lock comprises a lock housing, a lock latch movable between a locked position and an unlocked position, a translationally movable slide and a lock mechanism has (on), acts on the slider, thereby releasing the latch. Furthermore, the lock has a motor-gear unit for moving the slider via an engaging device.

STATE OF THE ART

Such door locks are widely known. That is, there are a variety of slide-controlled door locks on the market. In these door locks, the "control" of the processes in the door lock takes place via a slide. In such door locks the movably mounted slider is moved via a motor-gear unit. That is, the engine-transmission unit is responsible for unlocking the door lock by lifting the slider. Examples of closing devices with a motor drive device for actuating the latch of a lock can be found in EP 2 016 243 B1 and EP 1 203 860 A1 ,

The known door locks have a translationally mounted slide. The slider is advantageously movably mounted in the lock housing of the door lock. The slider is in operative connection with a latch of the door lock. The lock latch the door lock is movable between a locked position and an unlocked position. In the locked position, the latch, which may be designed in particular as a cross latch, projects out of the door lock, in particular the lock housing, so as to engage in a lock latch receptacle of a door frame. In the unlocked position, the latch is pulled into the door lock or lock housing to release the door. The latch can be pivoted between the two positions. Preferably, the lock latch between the locked position and the unlocked position is mounted linearly movable.

The operative connection between the slide and the latch is made by the locking mechanism, also referred to as the hinge mechanism, of the door lock. The locking mechanism locks the latch case. By a translational movement of the slider, the locking of the locking mechanism is released. Only by pressing the door while the latch is moved. Like the latch, the additional case head is moved only by pressing the door. At the same time, the additional case head will never lock the lock.

The slider is taken in the known motorized door locks by an engagement device, for example, a mandrel, which is located on a worm wheel of the motor-gear unit, and impinges upon rotation of the worm wheel on the slider, whereby the slider within the door lock or Moves the lock housing, in particular linearly shifted.

As engagement means also arranged on a drive wheel engagement member is known, wherein the drive wheel through the motor-gear unit is driven. Advantageously, while the engagement means is arranged eccentrically to the axis of rotation of the drive wheel and is designed such that during a rotational movement of the drive wheel, the engagement member, the displacement of the slider via a slide contact surface, ie by contacting the slide contact surface, performs. During the displacement of the slide, the contact contour of the engagement element slides along the slide contact surface.

D. h., By the eccentric arrangement of the engagement member on the drive wheel, the engagement member comes with a rotation of the drive wheel in contact with the slider and takes this with the rotation. The slider is thereby moved within the door lock or the lock housing, in particular moved linearly. If the drive wheel with the engagement element arranged thereon is preferably rotated further in the clockwise direction, the engagement element comes out of contact with the slide, i. H. in an out of contact position with the slider. In the non-contact position, the latch may act on the locking mechanism, resulting in movement of the slider, which in turn causes the latch to be moved to its locking position. This operative connection between the external contact position of the engagement element or the engagement device with the slide, the latch and the bolt is considered in particular as a necessary measure for a fire door.

But it comes to a power interruption or a power failure, ie that the motor-gear unit, in particular the motor, which serves for driving the rotatably mounted about the rotation axis drive wheel with the engagement element disposed thereon or for driving the mandrel, for example on a worm wheel of the engine-gear unit is arranged, is no longer supplied with energy, this can in a certain position of the engagement member or the mandrel relative to the slider, namely, when the engagement element or the mandrel with the slider is in a contact position, to a blockage of the slider, ie to an inhibition of the translational movement of the slider come. As a result, the force required to actuate the locking mechanism can not be transmitted from or to the slide, so that a lock, for example a panic or fire door, is no longer guaranteed, in particular the latch coupled to the slide can not be moved into its locking position. Also, a contact position of the engagement member or the mandrel with the slider must not cause a locked panic or fire door no longer releases the panic or escape route.

In the present case, the interventional device is understood to mean the engagement element and the mandrel.

Disclosure of the invention

It is therefore an object of the present invention to provide a device for supplying electrical power to a motor-operated lock, which still provides so much energy in the event of a power failure or in the event of a power failure of the motor-gear unit, in particular the engine, that the engaging means or the mandrel, which are in contact with the slider, can be brought out of contact with the slider. In addition, it is the object of the present invention to reduce the assembly costs and the manufacturing cost of a device for supplying electrical power to a motor-operated lock, wherein the device should be simple and space-saving.

This object is achieved on the basis of a motor-operated lock and a device for supplying electrical power to the motor-operated lock according to the preamble of claim 1 in conjunction with its characterizing features. Advantageous developments are specified in the dependent claims.

The invention includes the technical teaching that in the lock housing an energy-storing element is integrated, and that the energy-storing element is connectable to a voltage source, and wherein the energy-storing element is at least designed so that in case of power failure or power interruption the motor is electrically operable to move the engagement means from a contact position with the slider.
The device according to the invention should therefore also be understood as a power reserve. The energy in the energy-storing element is essentially due to an electrostatic energy storage, wherein the energy storage has at least an energy density of 1J / cm ³ . Where 1J = 1Ws. Thus, the power of the engine of the engine-transmission unit z. B. 1 Watt. At an energy density of 1J / cm ³ and an assumed size of the Energy storage of 1 cm ³ , the electrical component could be operated in the ideal case 1 s. The arrangement of the device according to the invention can therefore be done in the lock housing. The arrangement of the device according to the invention with the energy storage can be done accordingly without creating an additional space in the door.

An electrolytic capacitor, which also stores the energy essentially by an electrostatic energy storage, has z. B. at a volume of 22 cm ^3, an energy density of 0.125 J / cm ³ . This means that to operate the motor-gear unit for 1 s with a power of 1 W through an electrolytic capacitor, the volume of the electrolytic capacitor must be 176 cm ³ . This corresponds to a side length of the electrolytic capacitor of about 5.6 cm on the assumption that the electrolytic capacitor is cube-shaped.

In a preferred embodiment, it is provided that the energy-storing element preferably has an energy density of at least 5J / cm ³ , particularly preferably has an energy density of at least 8 J / cm ³ . The greater the energy density, the longer is an operating life of the engine of the engine-transmission unit with a certain power. Thus, the power of the engine of the engine-transmission unit z. B. 5 watts. With an energy density of 5J / cm ³ and an assumed size of the energy-storing element of 1 cm ³ , the motor of the motor-gear unit could ideally be operated for 1 s. The higher the energy density of the energy-storing element, the longer can also be the operation of the motor of the motor-gear unit by the energy-storing element. Accordingly, with an energy-storing element of 8J / cm ^3, the motor of the motor-gear unit can be operated with a power of 1 watt 8s. This can be effective the engaging means are brought in the out-of-contact position with the plant contour of the slider.

Furthermore, it is advantageous that the energy store is a supercapacitor. A supercapacitor may be a double-layer capacitor, a pseudo-capacitor or a hybrid capacitor. Also, a combination of double-layer capacitor, pseudo-capacitor and hybrid capacitor is conceivable. The supercapacitor, in particular the double-layer capacitor, is characterized in that the energy density at the same volume is up to 60 times greater compared to an electrolytic capacitor. In addition, a supercapacitor is subject to almost no calendar aging with respect to an accumulator. Also, the availability and operation of a supercapacitor are almost independent of the charging and discharging cycles. The use of a supercapacitor instead of a z. B. conventional electrolytic capacitor thus allows a space-saving design of the entire device, wherein the device can be arranged in the lock housing of the motorized lock so that the spatial-physical extent of the door, in particular an escape door for people not from the spatial-physical extent of the device is tangent.

It is particularly advantageous that a down converter converts the electrical voltage into a lower voltage, wherein the energy storage device can be charged by the lower voltage. A nominal voltage of the energy store can be far below the tappable electrical voltage of the energy of the voltage source, so that the buck converter can convert the electrical voltage to the rated voltage. In the industry is often z. B. a DC voltage of 24 volts used. The rated voltage of a supercapacitor as Double-layer capacitor can be 2.5 volts. To counteract destruction of the supercapacitor, the higher tap-off voltage can be converted to the lower rated voltage via the down converter.

In addition, it is advantageous that a constant current source is arranged electrically on the energy store. The constant current source can be used to limit a charging current during charging of the energy storage device. In addition, an overload of the buck converter can be avoided by the constant current source. In addition, a correct operation for charging the energy storage is guaranteed.

Furthermore, it is conceivable that at least two energy stores are connected in series. By switching energy storage devices in series, the voltage can be increased by the energy storage devices connected in series. In the case that z. B. an energy storage 2.5 volts rated voltage, 5 volts can be reached by the series voltage of the two energy storage in the series connection of two energy storage devices with a rated voltage of 2.5 volts. It is also conceivable that a parallel connection of energy storage devices can take place, as a result of which the capacity is increased by the two energy storage devices connected in parallel. Furthermore, a combination of a parallel and series connection of energy storage can take place. By increasing the voltage through the energy storage devices connected in series, the electrical power can be correspondingly increased by the energy storage devices connected in series. This also applies to a parallel connection, wherein the electrical power is determined from the product of voltage times current.

Furthermore, it is conceivable that an increase in the lower voltage by the boost regulator to a first output voltage is effected by a boost regulator. The boost regulator can double the low voltage. The boost regulator offers good efficiency with a simple inductance. In addition, higher voltages can be achieved with good efficiency by means of a transformer. The transformer can be a transformer.

It is also conceivable according to the invention for there to be an increase in the first output voltage through a cascade unit to a second output voltage. The cascade unit may be a Villard cascade. The space requirement of a Villard cascade is low compared to a transformer, in particular a transformer, since only diodes and capacitors are used for the construction of the Villard cascade. In this case, an input voltage of the Villard cascade can be converted into an almost arbitrarily high output voltage. Depending on the number of diodes and capacitors used in the Villard cascade, an arbitrarily high second output voltage can be generated. The Villard cascade converts a supplied AC voltage into a high DC voltage, the magnitude of the DC voltage being determined by the number of diodes and capacitors used within the circuit of the Villard cascade.

In a preferred embodiment, it is provided that the charge of the series-connected energy storage takes place by a passive balancing circuit. In this case, the balancing circuit can be constructed with resistors. Thus, when two energy storage devices are used, two resistances can be connected in series and, by the series connection with the passive balancing, the charge of the Energy storage permanently. Advantageously, in the event of a power failure, the electrical supply can be made directly from the energy stores. A balancing circuit with two energy stores can accordingly have two resistances connected in series, an energy store being connected in parallel at each resistor. In the case that the energy stores have the same rated voltage, it is advantageous that the resistors have the same resistance values.

It is likewise advantageous that a switching unit is arranged on the energy store, wherein electrical energy of the energy store can be transmitted to the motor of the motor-gear unit by the switching unit. The switching unit may be a transistor, wherein a base of the transistor may be arranged electrically to the tappable electrical voltage of the voltage source. In the event of a failure of the electrical voltage, the transistor changes its switching state, whereby the electrical energy of the energy storage device is transferable to the engine of the engine-transmission unit. The switching unit can also be a relay, wherein the relay can be arranged electrically with an input to the tappable electrical voltage. In case of failure of the electrical voltage, a switching state of the relay can also change. The switching state of the switching unit can be a closing or opening a switch.

Advantageously, the switching unit and the energy-storing element of the device according to the invention are on a support within the lock housing and in particular already existing circuits, for example, position sensors, which are arranged on a printed circuit board of the motor-operated lock, and its possibly existing power supply connected. This means, in an advantageous manner, that the energy supply of the energy-storing Elements of the device as well as their switching unit for the motor-driven lock within the lock housing, which is why a separate cable transition from the lock housing out to an outside of the lock housing arranged energy or voltage source is superfluous.

In order to arrange the energy-storing element and necessary for the switching unit components of the device within the lock housing, these are to reduce the size of the invention according to the invention reduced to a certain capacity and function, namely in case of power failure or power interruption, the motorized lock at least once in a predefined position to proceed. Preference is given as a predefined position to understand the disengagement of the slide with the engagement means.

Due to the functional limitation of the device according to the invention and its consequent minimization of the size of a fully functional device can be provided, which can be integrated in the lock housing for the motorized lock, which drastically reduces the assembly work and thus the cost of mounting the device to let.

Preferably, the carrier is a one- or two-sided circuit board, which may also be designed in several layers, printed circuit board, printed circuit board or printed circuit board for electronic components. In the present case can be understood as a carrier and the circuit board with the switching unit arranged thereon for controlling the motor-operated lock. In this case, the carrier and the circuit board are integrally formed with each other. This means that the switching unit and the energy-storing element of the Power reserve are preferably arranged directly on the circuit board for controlling the motor-operated lock. An additional wiring or a cable transition between the circuit board and the carrier are thus unnecessary.

However, in order to retrofit already manufactured or already installed motorized locks, the carrier is preferably a further printed circuit board, printed circuit board, board or printed circuit, which is connected to the circuit board and / or the power supply of the motorized lock. Particularly preferably, the carrier is connected to the printed circuit board by plugging or plugging the carrier onto or onto the printed circuit board. This can be done for example via connectors that produce both a mechanical and a data and energy-connecting contact between the circuit board and the carrier. Of course, it is also conceivable to connect the circuit board and the carrier within the housing via a cable transition.

If the motor-operated lock moreover also has sensors which offer the possibility of sensory detection of the lock functions, the capacity of the energy-storing element of the device according to the invention should be designed in such a way that at least one signal is forwarded to a control unit or monitoring can be. This is necessary, in particular, for monitoring motor-operated locks when they are used, for example, in large objects in safety-sensitive areas.

Of course, an accumulator or two or more accumulators connected together can also be used as energy-storing element become. It is also conceivable to incorporate other energy or current sources than the aforementioned energy-storing elements in the device according to the invention. However, all in all, the energy-storing elements must fulfill the condition that they are usable in the lock housing and also provide a sufficient electrical capacity, which makes it possible to drive the motor-driven lock in a predefined position as described above. Of course, a combination of different energy-storing elements is conceivable. For example, a capacitor could be installed in combination with an accumulator in the power reserve according to the invention.

Regardless of whether the device and the energy storage element are integrally formed with the circuit board or whether the device and energy storage element are modular, i. H. should be designed as a to be connected to the circuit board component, the carrier, the switching unit, the electronic components and the energy-storing element should be so designed or arranged in the lock housing that there is no impairment of the motor-operated lock. For this purpose, the carrier of the device is preferably contoured such that it eliminates functional elements of the motor-operated lock. This means that the designed for example as a printed circuit board or board carrier is adapted in shape to the functional elements and their location in the lock housing to avoid mechanical contact with these elements, which would lead to a loss of function of the lock in the extreme case.

A method which may be practiced by the combination of the motorized lock of the present invention and the apparatus for powering the lock includes electrically energizing the motorized lock with a voltage source for opening and closing the door is operated and an energy-storing element is charged by a tapped off at the voltage source electrical voltage, wherein in case of failure of the electrical voltage, the motor-driven lock is electrically operated by the energy-storing element. According to the invention, it is provided that the energy in the energy-storing element essentially takes place by means of an electrostatic energy storage, the energy-storing element having at least an energy density of ¹ J / cm ³ .

It is particularly advantageous that a switching unit is arranged on the energy-storing element, and that, in the event of a failure of the electrical voltage, a change in a switching state of the switching unit causes an energy output of the energy stored in the energy-storing element to the motor of the motor-gearbox unit becomes. The switching unit can be a transistor or a relay. A switching state can be an open switch position or a closed switch position. By using a transistor as a switching unit, a fast and reliable release of energy by the energy-storing element to the motor of the motor-gear unit can be done by a fast switching from a first switching state to a second switching state. In addition, the choice of a transistor, which may also be a field effect transistor, is advantageous since it can be arranged on a circuit board in SMD technology. The choice of a transistor or a field effect transistor in the SMD technology offers the advantage that a structure of the device according to the invention can be carried out in a space-optimized manner.

Furthermore, it is advantageous that the tapped voltage of the voltage source is reduced by a buck regulator to a lower voltage than the tapped voltage, wherein by the lower Voltage of the energy storage is loaded. The use of a buck converter offers the advantage that with a high voltage that can be tapped, energy-storing elements with a very low rated voltage can also be used. Since the energy-storing element may for example be a supercapacitor, z. B. for a double-layer capacitor rated voltage about 2.5 volts. At a tapped voltage of 24 volts or 30 volts, the down-voltage can be reduced to the nominal voltage of 2.5 volts by the down converter. In this case, energy-storing elements can be arranged in series, wherein z. B. two energy-storing elements with a rated voltage of 2.5 volts need a voltage of 5 volts. The required 5 volts can be provided via the buck converter, wherein the energy storing elements, which are connected in series, can be charged via a balancing circuit, in particular by using resistors. When using two energy-storing elements with the same nominal voltage, therefore, the formation of two resistors in series with the same resistance values is appropriate. The series-connected resistors with the same resistance form a voltage divider, with the same voltage across each resistor. Accordingly, applying 5 volts to the series resistors drops a voltage of 2.5 volts per resistor. At these resistors can then be arranged in parallel in each case an energy storage device with a rated voltage of 2.5 volts.

According to the invention, it can be provided that the low voltage is increased to a higher voltage, in particular substantially to the magnitude of the input voltage of the voltage source. The enlargement of the low voltage to the amount of input voltage offers the advantage of having an exchange of one already built motorized lock in a door which is energetically powered directly by a voltage source, in a subsequent installation of the device according to the invention, does not need to be done. This significantly reduces the cost of retrofitting the device according to the invention for a door that is already equipped with a motor-operated lock. The inventive device and the method have the advantage that already built motorized locks for a door with a certain voltage and a certain tapped voltage of a power source can continue to be used, since only between the power source with the tapped voltage and the motorized lock the Inventive device or method of the invention can be applied. In addition, the use of a supercapacitor as energy storage offers the advantage that the entire device according to the invention can be arranged in the space-limited lock housing.
The device can be arranged on double-sided capacitors with a rated voltage of 2.5 volts on a board with the dimensions of 1.7 cm x 8.5 cm using two supercapacitors. With a height of about 1 cm and a contouring, which eliminates the mechanical components of the castle, so that the entire device can be arranged as a unit in the lock housing and connected to the possibly existing circuit board and / or the power source of the motorized lock ,

Fig. 1

eine Draufsicht auf die Vorderseite eines Trägers der Vorrichtung in Form einer Leiterplatte, auf dem die Schalteinheit und das Energie speichernde Element der Vorrichtung angeordnet sind,

Fig. 2

eine Draufsicht auf die Rückseite des Trägers aus Figur 1 und

Fig. 3

in einer perspektivischen Ansicht eine Innenansicht eines motorbetriebenen Schlosses für eine Tür mit dem Träger der Vorrichtung aus den Figuren 1 und 2 in einem Schlossgehäuse.

Further, measures improving the invention will be described in more detail below with the description of a preferred embodiment of the invention with reference to FIGS. It shows:

Fig. 1

a top view of the front of a support of the device in the form of a printed circuit board, on which the switching unit and the energy-storing element of the device are arranged,

Fig. 2

a plan view of the back of the carrier FIG. 1 and

Fig. 3

in a perspective view of an interior view of a motorized lock for a door with the support of the device of the FIGS. 1 and 2 in a lock housing.

In the different figures, the same parts are always provided with the same reference numerals, which is why they are usually described only once.

The FIGS. 1 and 2 show the device 1 according to the invention for a motorized lock 2, which in FIG. 3 is shown.
On a support 5, which is designed here as a two-sided circuit board, electronic components 7 are arranged. The electronic components 7 together with strip conductors on the support 5, the switching unit for controlling the device 1. The carrier 5 is contoured so that it can be integrated into a lock housing 3 of the motorized lock 2. For this purpose, the carrier 5 on recesses 8, the functional elements of the motor-operated lock 2 aussparent, ie, that mechanical limitations of the functional elements of the motor-driven lock 2 are prevented by the carrier 5. In order to achieve this, the electronic components 7 are chosen in their arrangement and size so that they follow the contour of the carrier 5.

In addition to the electronic components 7, an energy-storing element 6 is arranged on the carrier 5. It is a capacitor, more precisely, two interconnected capacitors, which are in direct proximity to each other, which may be formed as supercapacitors. The interconnected capacitors are placed on the carrier 5 so that they can be integrated with the carrier 5 in the lock housing 3. Of course, the capacitors can also be arranged distributed over the carrier 5 and interconnected.

The capacity of the interconnected capacitors is selected so that the motor-operated lock 2 can be moved in a predefined position via the device 1 according to the invention in the event of a power failure or a power interruption. The energy in the energy-storing element 6 takes place essentially by means of an electrostatic energy storage, the energy-storing element 6 having at least an energy density of ¹ J / cm ³ . At the energy storing element 6, the motor 13 is electrically connected. The motor 13 can be operated via a voltage source (not shown) or via the energy-storing element 6. In normal operation, the motor 13 is supplied with electrical energy via the voltage source. In the event of a power source failure, the stored energy of the energy storing element 6 is used to rotate, via the operation of the motor 13, a drive wheel 14 connected therewith, as shown, to engage the engagement member 20 which is disposed on the drive wheel 14. to bring in an out-of-contact position with the slider 15. In normal operation, the energy-storing element 6 can be permanently charged by the voltage source.

A switch 7, 24, which is also an electronic component 7, which is arranged on the support 5, is located on a square drive for a pusher 19, as in FIG. 3 shown on. The switch 7, 24 serves to detect the position of the square drive.

FIG. 3 schematically shows a perspective view of an interior view of a motorized lock 2 for a door with the in the FIGS. 1 and 2 As shown in the invention, the individual components of the motor-driven lock 3 are not relevant, only essential elements of the motorized lock 2 are referred to serve for orientation. Thus, the operation of the motor-operated lock 2 and the device 1 according to the invention is in no way impaired.

The left lateral connection of the lock housing 3 forms a cuff 9, which is broken by a lock latch 10, an additional case head 11 and a bolt 12.

A pusher nut 19 is arranged rotatably about an actuating axis in the motor-operated lock 2 or the lock housing 3 of the motor-operated lock 2. At the follower 19 an actuating arm 21 is attached. The actuating arm 21 may be fixed non-positively to the follower 19. Preferably, the actuating arm 21 is integrally formed, in particular monolithic, with the follower 19. During a movement of the follower 19 about the actuating axis of the actuating arm 21 comes into contact with the slider 15. This leads to a movement, in particular a displacement, of the slider 15th

The slider 15 is operatively connected to a lock latch 10 and can move it by its movement from a locked position into an unlocked position, in which the latch 10 and the additional case head 11 is retracted by the forend 9 in the direction of the lock housing 3. The slider 15 is translationally movable, in particular linearly movable, in the motor-operated lock 2, in particular in the lock housing 3, stored. For transmitting the movement of the slider 15 in a release of the lock latch 10, a locking mechanism 22 is provided.

The motor-driven lock 2 further comprises a motor 13 with a motor-gear unit for driving the rotatably mounted about a rotation axis drive wheel 14. The motor 13 with the motor-gear unit is also used to unlock the latch 10, and in particular for moving the slider 15. The force of the motor 13 is not shown here in detail transmission and a transmission element, which in operative contact with the drive wheel 14th is transferred to the slider 15. In this case, the transmission element may be formed, for example, as a drive screw. By a rotation of the transmission element, the drive wheel 14, which is preferably designed as a gear wheel, in particular as a worm wheel, are rotated about its axis of rotation. On the drive wheel 14, an engagement element 20 is arranged eccentrically to the axis of rotation of the drive wheel 14. The engagement member 20 is formed such that upon rotational movement of the drive wheel 14, the engagement member 20 performs the displacement of the slider 15 via a slider contact surface 23 of the slider 15. That is, during the displacement of the slider 15, the contact contour of the engagement member 20 slides on the slider contact surface 23 along. The engagement element 20 is presently designed as a cam. Due to the structural design of the engagement member 20 requires the Motor only a relatively small engine torque to move the slider 15. If the engagement element 20 is rotated further, in particular rotated in a clockwise direction, the engagement element 20 comes via the contact contour 23 of the slider 15 in a contact position with the slider 15, whereby the translational movement of the slider 15 can be performed. If there is a power failure in this contact position between the slider 15 and the engagement member 20, ie, that the motor 13 is no longer energized, this leads to an inhibition of the translational movement of the slider 15 and to a blocking of the slider by the contact position As a result, the specific force for actuating the locking mechanism 23 force can not be transmitted from the slider 15 so that a lock, such as a panic or fire door, is no longer guaranteed.

In addition to the motor 13 and the follower 19 is located in the lock housing 3, a lock cylinder 16. The lock cylinder 16 is so in operative connection with the slide 15 that is displaced upon actuation of the lock cylinder 16 by a key 15 of the slider. By moving the slider 15, the bolt 12 of the motorized lock 2 can be operated, preferably retracted.

Below the drive wheel 14, an actuating axis 19 is arranged in the lock 2 for manual unlocking of the lock. In the actuation axis 19 is an actuator, which is not shown explicitly fastened. The actuator may be a knob, a handle or the like, which may be actuated by a user to open the lock.

Below the follower 19 and below the drive wheel 14, a return spring 17 is arranged, which acts on the follower 19.
To the right of the drive wheel 14, the actuation shaft 19, the return spring 17 and the lock cylinder 16, which in the present case form functional elements 18 of the motor-driven lock 2, is a device 1 according to the invention, the carrier 5 with the switching unit for controlling the device 1 and the energy-storing element 6 comprising, disposed within the lock housing 3. In this case, the contour of the carrier 5 is designed so that it at least partially the drive wheel 14, the follower 19, the return spring 17 and the lock cylinder 16 of the motor-operated lock 2 ausspart. In addition, functional elements 18 of the lock housing 3, which in the present case serve for the passage of closure elements, are recessed from the contour of the carrier 5.
The carrier 5 can at least partially overlap a circuit board 4 already installed in the lock housing 3, on which, for example, an electronic system for interrogating the position of the lock 2 or its control technology is already installed. The carrier 5 is connected via this section to the circuit board 4 data and / or voltage slider contact surface supplying.
As can be seen, the size of the interconnected capacitors is chosen so that they find space in the lower right corner of the lock housing 3 below a functional element 18 of the lock housing 3.

LIST OF REFERENCE NUMBERS

1

contraption

2

motorized lock

3

lock housing

4

circuit board

5

carrier

6

Energy saving element

7

electronic components on the carrier 5

8th

Recesses in the carrier 5

9

stulp

10

latch

11

Additional drop-head

12

bars

13

engine

14

drive wheel

15

pusher

16

lock cylinder

17

return spring

18

Functional element of the lock housing 3

19

follower

20

Engagement element or engagement device

21

actuating arm

22

locking mechanism

23

Slide contact surface

24

switch

Claims (6)

1. A motor-driven lock (2), in particular a self-interlocking anti-panic lock, and a device (1) for a door for the electrical supply of the motor-driven lock (2), wherein the lock (2) includes a lock housing (3), a lock latch-bolt (10), which is displaceable between an interlocked position and an unlocked position, a slider (15), which is supported to be translationally movable, as well as a blocking mechanism (23), onto which the slider (15) acts and thereby releases the lock latch-bolt (10), and wherein the lock (2) includes a motor-transmission-unit, comprising at least one motor (13) for moving the slider (15) beyond an engagement device (20), characterized in that an energy storing element (6) may be incorporated into the lock housing (3), and in that the energy storing element (6) may be connected to a voltage source, and wherein the energy storing element (6) is designed at least such that, in the event of a power failure or a power interruption, the motor (13) may be electrically operated in order to move the engagement device (20) out of a contact position with the slider (15).
2. The motor-driven lock (2) and device (1) according to claim 1, characterized in that a carrier (5), on which electronical components (7), forming the switch unit, and the energy storing element (6) are disposed, may be incorporated into the lock housing (3).
3. The motor-driven lock (2) and device (1) according to claim 1 or 2, characterized in that the carrier (5) having the energy storing element (6) disposed thereon may be connected to the motor-driven lock (2) in a data-connected and/or voltage-connected manner.
4. The motor-driven lock (2) and device (1) according to any of the preceding claims, characterized in that the energy storing element (6) consists of a capacitor or two or more interconnected capacitors, in particular supercapacitors.
5. The motor-driven lock (2) and device (1) according to any of the claims 1 to 3, characterized in that the energy storing element (6) consists of an accumulator or two or more interconnected accumulators.
6. The motor-driven lock (2) and device (1) according to any of the preceding claims, characterized in that the carrier (5) has contours and is dimensioned such that recesses are provided for functional elements of the motor-driven lock (2).

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