Method and device for operating a cabinet lock of a central locking system with energy recovery

Abstract

Method for operating a cabinet lock of a central locking system with electromechanical locking or electromechanical control of the locking mechanism and lock-side energy storage device (10), wherein the mechanical energy supplied by the user when actuating an actuating element (1) of the cabinet lock, designed as a push or rotary knob, is converted into electrical energy and is used at least for the electrical supply of a lock-side control unit (20), wherein the mechanical energy is fed to a generator (8, 31) which generates an electric current and feeds it into the energy storage unit (10), characterized in that the current of the energy storage unit (10) is directed to a voltage regulator (13) which adapts the stored energy in the energy storage unit (10) to the voltage and current requirements of the control unit (20), which acts on the sliding drive of a locking element (22) via a line (21).which has a locking pin (24) for blocking and releasing a locking bolt (26), and that a source switch (14) is connected to the voltage regulator (13) via a line (15), which contains a switch (17) to whose input a battery (16) is connected, and that when the voltage regulator (13) determines that the energy stored in the energy storage device (10) is insufficient to provide the necessary current and voltage for powering the control device (20), the switch (17) is actuated and the battery (16) is connected.

Description

The invention relates to a method and a device for operating a cabinet lock of a central locking system with lock-side energy generation. It also relates to a cableless cabinet lock of a central locking system with electromechanical locking or locking control according to the preamble of the independent patent claims. The invention also relates to a cableless cabinet lock in isolation without this being part of a central locking system.A locking system with programmable keys of a central locking system is known, for example, from the subject matter of EP 0 911 466 B2.However, this known locking system has the disadvantage that cable connections from a central station to the respective cabinet locks of a multiple locking system are necessary, which entails a high level of installation and maintenance complexity. Because of the cable connection, it is difficult to change, implement or make a connection or expansion installation of this type. In this case, the entire wiring needs to be changed.In the case of cable-bound cabinet locks of a central locking system, a control device is therefore always necessary as a superordinate entity in order to ensure management of the individual cabinet locks.Wireless cabinet locks with a stationary battery installed in the cabinet lock are also known, which do not require a cable connection to a server. For this case, the authorisation for opening or closing the cabinet lock is written to a mobile data carrier designed as an RFID tag. The mobile data carrier is designed as an RFID tag, so that the state or the unique identifier of the mobile, passive tag is determined by the interrogation in the field of a lock-side reader and is communicated from the lock side to a remote server via a radio communication.However, the disadvantage of such a cordless cabinet lock with a mobile data carrier designed as a tag is that a stationary battery must always be arranged in the cabinet lock, and the battery replacement intervals are relatively short. In the case of high-quality lithium batteries, the replacement time is generally about 2 years.This has the disadvantage that after at the latest 2 years expensive and high-quality batteries have to be disposed of, which is associated with considerable cost and damage to the environment.DE 10 2004 041 518 A1 discloses a method for operating a cabinet lock of a central locking system with lock-side energy generation according to the preamble of patent claim 1.WO 2009 / 936 585 A1 discloses a method for operating a cabinet lock of a central locking system with lock-side energy generation according to the preamble of claim 3.DE 32 08 818 A1 discloses a method for operating a cabinet lock of a central locking system with lock-side power generation according to the preamble of claim 4.DE 10 2010 018 221 A1 discloses a device for operating a cabinet lock of a central locking system with lock-side energy generation according to the preamble of claim 6.The invention is based on the object of further developing a cableless cabinet lock of the type mentioned at the beginning in such a way that the service intervals required for replacing the batteries are substantially extended or even a complete freedom from maintenance of the cabinet locks is achieved.To achieve the object set, the invention is characterized by the technical teaching of the independent patent claims.An energy-autonomous cabinet lock is proposed which can either completely dispense with a built-in battery or which requires only one backup battery, the replacement of which is only necessary after 10 or more years.According to claim 1, it is provided that the user himself applies a mechanical energy to the cabinet lock upon actuation of the cabinet lock, which is converted into electrical energy. This is used to supply the lock control and, if appropriate, in addition to the electromechanical actuation of the locking pin which carries out the locking of the locking bolt.According to this technical teaching, it is accordingly provided that preferably only the mechanical energy which is entered into the lock by the user by actuating a push button or rotary knob for the purpose of opening or closing is used for autonomous energy supply of at least the lock controller. In an extended application, in addition to the energy supply of the lock control, the energy supply of the locking mechanism can also be provided.The kinetic energy (kinetic energy) generated by the user is the energy that an object contains due to its movement. It corresponds to the work that must be expended to set the object from rest to the current movement. It depends on the mass m and on the speed v of the moving body.Such an actuating element is designed, for example, as a linearly movable actuating button, in the case of the actuation of which a specific kinetic energy is generated, which is transmitted from a suitable mechanical transmission to a generator, which in turn converts the kinetic energy into a voltage and an accompanying current, which is used for supplying voltage to the entire electronic circuit of the lock system and, if appropriate, also for supplying voltage to the displacement drive for driving the locking element for locking or releasing the locking bolt, or alternatively directly also for the displacement drive of the locking bolt.In a second embodiment, the actuator is configured as a rotary knob, wherein angular rotation of the rotary knob produces rotational energy which acts on a gear driving the aforementioned generator, which in turn converts the energy into a voltage and an accompanying current,The kinetic energy to be applied by the user is accordingly coupled to the actuation energy to be applied by the user without this for the actuation of the cabinet lock according to the invention.If, for example, the user wants to close the cabinet, the actuating element is actuated mechanically (either via the push button or via the rotary knob), and this mechanical movement is conducted to the generator via the gear mechanism.Conversely, the mechanical actuation is preferably also used when opening the lock, wherein a mechanical energy is input to the lock from the user because it actuates the push or rotary knob in order to open the lock or move the cabinet door.According to the invention, the actuating mechanism for closing or opening the cabinet, but also the cabinet door itself, is accordingly coupled to suitable devices for generating energy.In another embodiment, it is provided that the energy is not converted into an electrical energy when the rotary knob is actuated, but that such a conversion takes place in the hinge region.In this case, the generator or the transmission which operates on the generator is coupled to the angular movement of the hinge in order to convert the mechanical hinge pivoting movement into an electrical energy in the generator.There are various designs in the design of the generator used here. In a first embodiment, it can be provided that the generator is designed as a linear generator, which means that a linear mechanical displacement of an armature or the like leads to the generation of a voltage.In a second embodiment, it can be provided that the generator operates in a rotary manner, that is to say a rotary mechanical transmission converts the rotary movement of an output pinion into an associated rotary movement of a generator, wherein the transmission is preferably designed as a transmission. A very slow or short-path mechanical actuation results in a fast-rotating movement of the transmission and a correspondingly high input of energy into the generator, which thereby operates with high efficiency.In another embodiment, it is provided that the transmission is coupled to a flywheel, which means that the mechanical energy input by the user is input via a flywheel to the transmission and the generator, which in turn is connected with the advantage that the flywheel has a lag time and thereby an even more effective control of the generator is achieved with a better efficiency.The advantage of the invention is that the technical teaching according to the invention substantially extends the service intervals. In a first embodiment of the invention, it is provided that a support battery is installed in the cabinet lock. This ensures that the service life of such a battery has been extended in the range between 5 and 10 years.The generated electrical energy is either stored in a battery or consumed promptly (intermediate storage: capacitor, supercap, goldcap, etc.) by the electrical controller.A further advantage of the invention is that the electrical energy is generated directly during the actuation or the desired use of the lock and is thus available only when required. This avoids the problem of storing the electrical energy, especially in the case of smaller installations.Moreover, in the form of independent claim 3, it is also claimed that the energy is input not by a mechanical actuation of the user, but by electromagnetic waves or by light waves (claim 4).For this purpose, in a first embodiment, it is provided that the energy of an electromagnetic field, for example an RFID field, acts on an induction coil or an antenna in the cabinet lock and an energy converter converts the RF voltage from the received antenna current into a DC voltage and introduces it into a current storage suitable for this purpose.In another embodiment, it is provided that the high-energy waves are introduced as light waves (i.e. daylight or UV rays) into photovoltaic cells which operate on an energy converter which in turn delivers the converted energy to a power store.The invention is therefore not limited to the mechanical actuation for generating the energy necessary for the actuation of the lock, but rather wireless energy fields can also be used, in particular radio fields or even light waves.It goes without saying that all the above-mentioned energy generation methods should enjoy protection on their own, but also in any desired combination or composition with one another. For this reason, the claims may include any combination of all or individual energy harvesting methods.The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another.All the details and features disclosed in the documents, including the summary, in particular the spatial configuration illustrated in the drawings, are claimed as essential to the invention, provided they are novel, individually or in combination, compared with the prior art.The invention is explained in more detail below with reference to drawings which represent only one embodiment. In this case, further features and advantages of the invention which are essential to the invention are evident from the drawings and their description.The following are shown: FIG. 1 : schematic functional diagram of a first embodiment of the invention FIG. 1A : Perspective illustration of an actuating element in the form of a pushbutton FIG. 1B is a front view of a rotary knob used to actuate the cabinet lock FIG. 2 : a first embodiment for generating current from a mechanical actuation FIG. 3 : shows a second embodiment for generating current from a mechanical actuation FIG. 4 : a first embodiment for generating current from radio waves FIG. 5 shows a second embodiment for generating current from light waves FIG. 6 : the voltage time diagram in the case of a mechanical actuation of the actuating element at the output of the generator FIG. 7 : the function blocks which run during the actuation time in the control (microcontroller) of the cabinet lock FIG. 8 shows a flow diagram of a complete closing process FIG. 9 shows a detail of the actuation of the locking pin according to FIG. 1, showing further details FIG. 10 : shows a flow chart in the microcontroller controller for ensuring the energy supplyThe functional diagram of FIG. 1 shows a first embodiment, an actuating element 1 being shown in general. According to FIG. 1A, the actuating element 1 can be designed as a pushbutton which is pressed into the lock plate of a cabinet lock in the direction of the arrow 2. Electrical energy is obtained from the mechanical movement generated.FIG. 1B shows that instead of a pushbutton according to FIG. 1A, a rotary knob 59 can also be used, which is rotated, for example, in the arrow direction 3 and the rotational mechanical energy generated via a rotary angle 60 is used to generate electric current in the generator 8.FIG. 1 generally shows that the actuating element 1 acts against a force accumulator 4, the force accumulator being supported with respect to a fixed support 5.In the sense of FIG. 3, it is also provided that a piezo transducer 32 is arranged in conjunction with the energy storage device 4, which piezo transducer controls the energy storage device by the mechanical actuation of the actuating element 1, which in the exemplary embodiment shown consists of a rectifier 11 and a battery 12 or equivalent energy storage devices.In the exemplary embodiment according to FIG. 1, it is furthermore shown that the mechanical displacement or rotation of the actuating element 1 is initiated via a mechanical actuating path 6 to a transmission gear 7, which carries out a transmission of the mechanical movement into a fast rotational or a sliding movement.The output of this transmission 7 is coupled to a generator 8, which can also be referred to as a dynamo. This can be a linear dynamo or a rotationally driven dynamo.Instead of the introduction of a mechanical energy via a transmission 7 to a generator 8, a hydraulic energy can also be used. In this case, the displacement of the actuator 1 acts on a piston compressing a suitable hydraulic fluid which, via a rotatively driven element, generates a rotary motion coupled to the generator 8 which generates a current.At the output of the generator 8, the generated current is introduced via the electrical line 9 to a suitable energy store 10. In a preferred embodiment, this energy storage device 10 contains a rectifier 11 and a battery 12. It can also be designed as a storage capacitor.Via the line 64, the current generated at the output of the energy store 10 is conducted to a voltage regulator 13. The voltage regulator 13 has the task of adapting the stored electrical energy in the energy store 10 to the voltage and current requirements of the controller 20 with the microcontroller.A temporary changeover can also be provided, that is to say the voltage regulator 13 supplies current to the controller 20 only if it turns out that the power supply is sufficient for the controller 20 and for the actuation of the movement drive for the locking pin 24.For this purpose, a source switching circuit 14 is connected to the voltage control 13 via the line 15. This contains (schematically shown) a switch 17, to the input of which a battery 16 is connected. Instead of the battery, another electricity storage device can also be used. This is a stationary (backup) battery 16, the service life of which is thus decisively extended.If it is established in the voltage regulator 13 that the energy stored in the energy store 10 is not sufficient for the supply of the necessary current and voltage requirement for the power supply to the controller 20, the switch 17 is actuated and the battery 16 is switched for a short time via the line 18 to the input of the controller 20, namely to the line 19.This results in the high functionality of the invention, since it is shown that the battery 16 either has never to be used or only has to be used sporadic and only in the case that the mechanical actuation energy from the actuation element 1 should not be sufficient.The control 20 acts via the line 21 on the displacement drive of a locking element 22, which displacement drive is schematically shown as an armature coil 23 in the exemplary embodiment shown. Any displacement drive may be used, and other linear or rotary actuated electromechanical actuators may be used instead of an armature coil. The purpose of supplying current to the armature coil 23 is to engage the locking pin 24 in a locking recess 25 of a locking bolt 26 or to disengage it from this locking recess 25. This is illustrated in more detail in FIG. 9.FIG. 9 shows, in a shortened and schematic manner, that the mechanical actuation energy for the actuation of the actuation element 1 acts on the closure latch 26 via a mechanical deflection 28, not shown in more detail, which carries out the actual closing function between the cabinet door and the carcass. For this purpose, a tumbler 27 is provided in the cabinet body, into which the locking latch 26 is engaged in the closed state.In the open state, the closing latch 26 is pulled out of the tumbler 27 by the mechanical actuation of the actuating element 1, so that the cabinet door is open.In order to enable locking of the locking bolt 26, it is provided according to the invention that the locking pin 24, which is schematically shown in FIG. 1, can be moved into an associated locking recess 25 on the locking bolt 26. A mechanical actuation of the actuating element 1 for disengaging the locking bolt 26 from its tumbler 27 in the cabinet therefore leads to no result because the locking bolt 26 is blocked by the locking pin 24.In another embodiment, it is provided that the locking pin 24 itself is designed as a locking latch 26.Consequently, it is important that the control 20 first brings the locking pin 24 out of engagement with the locking recess 25 in the locking bolt 26 via the locking element 22, so that the locking pin can be actuated mechanically at all by actuating the actuating element 1 (which can also be designed as a rotary knob 59). The locking pin 24 is engaged and disengaged in the directions of the arrows 29.When the locking pin 24 is released, the locking bolt 26 is actuated in the open position, and this generates mechanical energy, which leads via the generator 8 to a power supply of the controller 20 and of the locking element 22.FIG. 2 shows as a first exemplary embodiment the exemplary embodiment already shown in principle in FIG. 1, that the mechanical actuation of the actuating element 1 is conducted to a dynamo 31 via a flywheel transmission 30, which still generates additional mechanical energy.FIG. 3 shows as a further exemplary embodiment that a mechanical actuation of the actuating element 1 is conducted to a piezo transducer 32. In the description of FIG. 1, it has been pointed out that the piezo transducer can be used instead of or together with the energy store 4. It may also be located at another location where the generated kinematic energy is converted to a pressure applied to the piezo transducer 32.Here too, the piezo transducer conducts its generated electrical energy into the energy store 10, so that the required energy is available at the output 33.FIG. 4 shows as a further exemplary embodiment that not only a mechanical actuation is used for generating energy. The energy of an RF field 34 can additionally be used alone or in combination with the mechanical actuation. The radio waves generated by at least one central radio antenna in the region of the locking system or a hand-held device are introduced onto a lock-side antenna 35 which is designed, for example, as an induction coil, wherein the RF energy is converted in an energy converter 36 into a direct current which is fed to the energy store 10.Finally, FIG. 5 shows that photovoltaic cells 39 are also used as an alternative or cumulative to the mechanical actuation, which cells capture light waves 37 and carry out a current conversion. The current obtained from this is fed to a charge controller 38 which feeds the current to the energy store 10.FIG. 6 shows an actuation pulse, namely as a power curve 40, over the actuation time t at the output of the generator 8.The energy content 41, which results from the integration of this power-time curve, is the available energy that is available for driving the entire electronic circuit.FIG. 7 shows that processing of a series of function blocks is started in the central microcontroller (controller 20) during the mechanical actuation time. In function block 42, the entire circuit is first initialized, and this is followed by function block 43, which gives the command from the cabinet lock to read the card that is held at a certain distance from the cabinet lock. For this purpose, a reader field is generated in the cabinet lock via an antenna, not shown in detail, and the identifier of the mobile data carrier is read out with the passive tag installed in the mobile data carrier, so that the cabinet lock recognizes the authorisation of the mobile data carrier and can be moved further accordingly.Instead of an RFID field generated by the cabinet lock, an NFC field can also be used. The process of reading the card is followed by the function block 44, which contains a checking cycle in the microcontroller with which it is checked whether it is a card permissible for this cabinet installation. This is done by reading a corresponding memory block on the card. It can likewise be established with this method whether it is a special card (e.g. service card) for this cabinet installation.The term "card" in the context of the present description of the invention is used interchangeably with the term "RFID-TAG" which is incorporated in the card. It is preferably a passive RFID tag.In function block 45, the cabinet lock sends a radio pulse (containing the appropriate lock and card data) to a remote center and the center is interrogated as to whether the card is authorized to actuate the lock.In function block 46, the microcontroller in the cabinet controller waits for a radio pulse to be received and the lock to be released from the central office. In function block 47, the enabling pulse is transmitted from the central station to the microcontroller of the cabinet via the radio communication station, received by the latter and evaluated.The electromechanically driven closing mechanism is then actuated in function block 48. As already indicated in the preceding description, an armature coil 23 is only indicated as an exemplary embodiment, which displaces the locking pin 24 designed as an armature.In another embodiment, however, the displacement drive can also be designed as a linear motor or as a rotary motor. It can likewise be a hydraulically driven motor. An electromechanical control (valve) of a hydraulic locking mechanism is also possible.In another embodiment, only an electromechanical control (valve) of a hydraulic locking mechanism is possible. After the locking pin 24 has been actuated, feedback to the central station is effected via the radio communication interface in function block 49, and the entire circuit is de-energized in function block 50, i.e. it is switched to a de-energized off state.FIG. 8 is a flow chart showing the operations described above in the form of function blocks 42-50.Starting from the actuation of the button at position 51, the mechanical energy on a flywheel dynamo is initiated at position 52, and at position 53 the generation of the electrical energy and its introduction into a power store takes place together with a voltage regulation.The energy generated at the output 33 is supplied to the controller 20 for the microcontroller executing the above-described function blocks.In the event of a radio query at the server, a check is made in function blocks 45- 47 as to whether the server has responded. If the answer in decision block 54 is NO, the entire power supply is immediately turned off and switched to a sleep state in function block 50. If, however, the server response is positive, the actuation of the locking is branched off into the function block 48.The locking in function block 48 is followed by a check of the locking state (decision block 55) and, accordingly, a feedback 57 is made to the server via the radio communication station and, after that, the sleep state of the circuit is made in function block 50.The locking operation is queried. Following entry point 63 is a decision block 55 which makes a determination as to whether or not the actuation of the latch was successful. If it was successful, the feedback 57 to the server takes place.If, however, it was not successful, a message 56 (message error) is made to the server. After sending the message "error" in branch 58 to the server, the system enters sleep mode 50. It is not necessary to implement the branch 58 as radio communication. Figure 10 shows the insertion of the flow chart at entry point 63 At decision block 54 it has been checked and in dependence thereon it is assumed at entry point 65 that actuation of the lock mechanism is desired.At position 66, the voltage across the alternate storage 16 is measured to determine that if the voltage derived from the generator 8 and the energy storage 10 is insufficient, the alternate storage 16 still has enough energy to cause the energy to be taken from the energy storage 16. Referring to Fig. 1, a source switch 14 is shown. Fig. 10 shows the block diagram of the source switching.If it is determined at 67 that the voltage of the alternative memory 16 is sufficient, the system branches to the YES branch and to the function block 48. The lock is thus actuated and the lock is monitored in the monitoring block 61. It is checked whether the locking current is unacceptably high, for example because the locking pin 24 is blocked. It is also checked whether the closing or opening time of the lock pin 24 exceeds an unacceptably high time, thereby detecting a failure.In the case of such a malfunction, the disturbance 62 is branched off and, in the case of the normal function, the entry point 63 is branched off.However, if it is determined that the voltage at the alternative memory 16 is not sufficient, the decision block 67 branches to a warning message 56 and the warning message is passed to a server 68 via the branch 58. If the permissible time or the maximum permissible locking current is exceeded in the locking monitoring device 61, a fault message 62 is likewise sent to the server 68 via the branch 58, which is possibly designed as a radio link 58.It is also added to FIG. 8 that, in the case of a radio query at the server, it is determined in function blocks 45- 47 that radio path 58 is disturbed. The lock controller then receives no response from the server. For this case, no function is triggered in the locking system if a locked state of the locking system is desired.If, on the other hand, the locking system of the lock is to be opened, the last stored internal ID number of the mobile data carrier is used and is opened if they match. This means that even if the radio communication with the server malfunctions, the lock can be opened once again.Drawing Legend1 Actuating element 2 Arrow direction 3 Arrow direction 4 Energy store 5 Support 6 Actuating travel 7 Transmission 8 Generator 9 Line 10 Energy store 11 Rectifier 12 Rechargeable battery 13 Voltage regulator 14 Source changeover 15 Line 16 Battery 17 Switch 18 Line 19 Line 20 Controller 21 Line 22 Locking element 23 Armature coil 24 Locking pin 25 Locking recess 26 Closing latch 27 Tumbler (cabinet) 28 Mechanical deflection 29 Arrow direction 30 Flywheel transmission 31 Dynamo 32 Piezo converter 33 Output 34 RF field 35 Antenna (or coil) 36 Energy converter 37 Light wave 38 Charge regulator 39 Photovoltaic cell 40 Power profile 41 Energy content 42 Function block 43 Function block 44 Function block 45 Function block 46 Function block 47 Function block 48 Function block 49 Function block 50 Function block 51 Position 52 Position 53 Position 54 Decision block 55 decision block 56 message 57 feedback 58 branch (possibly designed as a wireless path) 59 rotary knob 60 rotary angle 61 monitoring block 62 interference block 63 entry point 64 line 65 position 66 position 67 decision block 68 server

Claims

Method for operating a cabinet lock of a central locking system with electromechanical locking or electromechanical control of the locking and lock-side energy storage device (10), wherein the mechanical energy introduced by the user when an actuating element (1) of the cabinet lock designed as a push or rotary knob is actuated is converted into electrical energy and is used at least for the electrical supply of a lock-side control device (20), wherein the mechanical energy is introduced to a generator (8, 31) which generates an electrical current and introduces it into the energy storage device (10), characterized in that the current of the energy storage device (10) is conducted to a voltage regulator (13) which adapts the stored energy in the energy storage device (10) to the voltage and current requirement of the control device (20) which acts via a line (21) on the displacement drive of a locking element (22), which has a locking pin (24) for blocking and releasing a locking bolt (26), and in that a source changeover device (14) is connected to the voltage regulator (13) via a line (15), said source changeover device containing a switch (17), to the input of which a battery (16) is connected, and in that, if the voltage regulator (13) establishes that the energy stored in the energy store (10) is not sufficient for the provision of the necessary current and voltage requirement for the power supply of the controller (20), the switch (17) is actuated and the battery (16) is switched on.Method according to claim 1, characterised in that a mechanical energy introduced by the user onto the hinge of the door leaf is converted into electrical energy for supplying the lock-side control (20).Method for operating a lock of a central locking system with electromechanical locking and lock-side energy store (10), wherein an electrical energy is introduced and is used at least for the electrical supply of a lock-side controller (20), wherein the electrical energy is introduced to an energy converter which generates an electrical current and introduces it into the energy store (10), wherein the energy of an external RF field (34) is converted into electrical energy in the lock, characterized in that the current of the energy store (10) is conducted to a voltage regulator (13) which adjusts the stored energy in the energy store (10) to the voltage and current requirement of the controller (20), which acts via a line (21) on the displacement drive of a locking element (22) which has a locking pin (24) for blocking and releasing a lock bolt (26), and that a source switch (14) is connected to the voltage regulator (13) via a line (15), said source switch containing a switch (17), to the input of which a battery (16) is connected, and that if the voltage regulator (13) establishes that the energy stored in the energy store (10) is not sufficient for the supply of the necessary current and voltage requirement for the power supply of the controller (20), the switch (17) is actuated and the battery (16) is switched on.Method for operating a lock of a central locking system with electromechanical locking and lock-side energy store (10), wherein an electrical energy is introduced and is used at least for the electrical supply of a lock-side controller (20), wherein the electrical energy is introduced to an energy converter which generates an electrical current and introduces it into the energy store (10), wherein a daylight energy acting on the lock is converted into electrical energy, characterized in that the current of the energy store (10) is conducted to a voltage regulator (13) which adapts the stored energy in the energy store (10) to the voltage and current requirement of the controller (20), which acts via a line (21) on the displacement drive of a locking element (22) which has a locking pin (24) for blocking and releasing a lock bolt (26), and that a source switch (14) is connected to the voltage regulator (13) via a line (15), said source switch containing a switch (17), to the input of which a battery (16) is connected, and that if the voltage regulator (13) establishes that the energy stored in the energy store (10) is not sufficient for the supply of the necessary current and voltage requirement for the power supply of the controller (20), the switch (17) is actuated and the battery (16) is switched on.Method according to one of Claims 1 to 4, characterized in that the converted electrical energy is additionally used for the electromechanical actuation of the locking pin (24) and / or of the locking bolt (26).Device for operating a cabinet lock of a central locking system with electromechanical locking or electromechanical control of the locking and lock-side energy storage device (10), wherein the mechanical energy introduced by the user upon actuation of an actuating element (1) of the cabinet lock designed as a pressure or rotary knob can be converted into electrical energy and can be used at least for the electrical supply of the lock-side control device (20), wherein the mechanical energy can be introduced to a generator (8, 31) which generates an electrical current and introduces it into an energy storage device (10), characterized in that the current of the energy storage device (10) can be introduced to a voltage regulator (13) which adapts the stored energy in the energy storage device (10) to the voltage and current requirement of the control device (20) which is connected via a line (21) to the displacement drive of a locking element (22), which has a locking pin (24) for blocking and releasing a closing latch (26), and in that a source changeover device (14) is connected to the voltage regulator (13) via a line (15), said source changeover device containing a switch (17), to the input of which a battery (16) is connected, which can be connected via the switch (17), if required, for the additional supply of power to the controller (20).Device according to claim 6, characterised in that the generator (8, 31) additionally carries out the movement control of the locking pin (24) and / or of the locking bolt (26).Device according to Claim 6 or 7, characterized in that the electrical energy generated can be stored either in a rechargeable battery (12) or in a storage device such as a capacitor, supercap, goldcap, etc., or can be supplied directly to the electrical controller (20).Device according to one of Claims 6 to 8, characterized in that the lock-side controller (20) is designed as an RFID system which generates a reader field which is suitable for interrogating a mobile data carrier which carries a passive tag or in that the data exchange between data carrier and lock-side controller takes place via NFC.Device according to any one of claims 6 to 9, characterised in that the actuator (1) drives a transmission (7) and a flywheel coupled to the generator (8, 31).

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