EP4148216A1 - Verfahren zur stromversorgung eines elektronischen zylinders eines schlosses - Google Patents

Verfahren zur stromversorgung eines elektronischen zylinders eines schlosses Download PDF

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Publication number
EP4148216A1
EP4148216A1 EP22187709.5A EP22187709A EP4148216A1 EP 4148216 A1 EP4148216 A1 EP 4148216A1 EP 22187709 A EP22187709 A EP 22187709A EP 4148216 A1 EP4148216 A1 EP 4148216A1
Authority
EP
European Patent Office
Prior art keywords
key
electronic cylinder
cylinder
electrical energy
generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22187709.5A
Other languages
English (en)
French (fr)
Inventor
Roger Leclerc
Florian DUPE
Norbert Marchal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cogelec SAS
Original Assignee
Cogelec SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cogelec SAS filed Critical Cogelec SAS
Publication of EP4148216A1 publication Critical patent/EP4148216A1/de
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611—Cylinder locks with electromagnetic control
    • E05B47/0619—Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626—Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/063—Cylinder locks with electromagnetic control by blocking the rotor radially with a rectilinearly moveable blocking element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0057—Feeding
    • E05B2047/0058—Feeding by batteries
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0057—Feeding
    • E05B2047/0062—Feeding by generator
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0082—Induction for charging or current transformation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0094—Mechanical aspects of remotely controlled locks
    • E05B2047/0095—Mechanical aspects of locks controlled by telephone signals, e.g. by mobile phones
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00579—Power supply for the keyless data carrier

Definitions

  • the invention relates to a method for powering an electronic cylinder of a lock. It also relates to a key and an assembly for the implementation of this method.
  • Known access control systems include a master key and an electronic cylinder.
  • a master key For example, such a system is described in the application EP3220362 .
  • the electronic cylinder is equipped with a battery.
  • this battery supplies the electronic cylinder but also the main key used to unlock the electronic cylinder.
  • the main key used to unlock the electronic cylinder.
  • this emergency power supply phase consists of inserting a special key equipped with a blade and electrical contacts into the electronic cylinder which make it possible to establish wired electrical connections with the electronic cylinder.
  • This special key is fitted with a battery which powers the electronic cylinder.
  • this special key is also capable of transmitting an access code to the electronic cylinder at the same time, allowing it to be unlocked.
  • this emergency power supply phase is not always practical to implement.
  • the user when the user discovers that he cannot unlock the electronic cylinder with his main key because the battery is faulty, the user does not necessarily have the special key on him. He may therefore find himself temporarily unable to unlock the electronic cylinder. Then the special key uses a battery to power the electronic cylinder. However, this battery, even if it is not used, discharges naturally over time. Thus, when the user needs to use the special key, his battery can be discharged which still makes it temporarily impossible to unlock the cylinder.
  • the invention aims to overcome the problems of the emergency power supply phase of the demand EP3308104 . It therefore relates to a method of supplying an electronic cylinder according to claim 1.
  • the invention also relates to a key and an assembly for implementing the claimed supply method.
  • FIG. 1 represents an access door 2 to a building.
  • This door 2 has an interior side, typically located inside a room, and an exterior side on the opposite side.
  • the terms “interior” and “exterior” refer, respectively, to the interior and exterior sides of the door 2.
  • the door 2 here extends in a vertical plane. Thereafter, the vertical direction is designated by the Z direction of an XYZ orthogonal frame.
  • the X direction is perpendicular to the vertical plane in which the door 2 mainly extends. All of the figures in which an electronic lock is shown are oriented with respect to this reference XYZ.
  • Door 2 is equipped with a handle 4 and an electronic lock 6. To simplify the figure 1 , only part of the gate 2 is shown.
  • the general mechanical architecture of the lock 6 is, for example, identical to that described in the applications FR3025236 And EP3431684 . For this reason, only the details necessary for understanding the invention are given here. For further details, the reader is referred to these requests.
  • the lock 6 comprises a bolt 10 movable in translation, parallel to the direction Y, alternately and reversibly, between an extended position and a retracted position.
  • the bolt 10 protrudes beyond the edge of the door 2 to engage in a keeper fixed without any degree of freedom on the frame of the door 2.
  • the bolt 10 locks door 2 in its closed position.
  • the bolt 10 is retracted inside the door 2 and no longer protrudes beyond the edge of this door 2.
  • the door 2 can be moved by a user of a closed position to an open position by operating the handle 4.
  • the lock 6 also includes an electronic cylinder 12 and a screw 14 for fixing the cylinder 12 in the door 2.
  • the cylinder 12 is movable between an unlocked position and, alternately, a locked position. In the unlocked position, it allows the opening of door 2 and therefore access to the building. In the locked position, it prohibits the opening of the door 2 and therefore access to a building.
  • the cylinder 12 moves the bolt 10 from its extended position to its retracted position when a key 16 ( figure 2 ), authorized to unlock the lock 6, is introduced, then turned inside this cylinder 12.
  • the cylinder 12 also moves the bolt 10 from its retracted position to its extended position when the authorized key is inserted and then turned in the opposite direction. inside this cylinder. Conversely, when an unauthorized key is introduced inside the cylinder 12, this cylinder prevents the movement of the bolt 10 from its extended position to its retracted position.
  • the key 16 can be introduced inside the cylinder 12 from the exterior side and, alternately, from the interior side of the door 2.
  • the cylinder 12 emerges on each side of the door 2.
  • Screw 14 has a head that is flush with the edge of door 2. The threaded end of screw 14 is screwed into cylinder 12 to hold it in place inside door 2.
  • the cylinder 12 is also not connected to an electricity distribution network.
  • cylinder 12 conforms to the European format.
  • the cylinder 12 extends along a longitudinal axis 20 parallel to the direction X. It comprises a stator 22 fixed without any degree of freedom to the door 2 by means of the screw 14 and a bit 24 housed at the inside a transverse notch 26.
  • the notch 26 extends in a transverse plane 28 parallel to the directions Y, Z.
  • Plane 28 is a plane of symmetry for bit 24.
  • the bit 24 rotates counterclockwise around the axis 20 to move the bolt 10 from its extended position to its retracted position and in the opposite direction to move the bolt 10 from its retracted position to its extended position.
  • the plane 28 also divides the stator 22 into two parts.
  • the part of the stator 22 located on the inner side of door 2 is called “inner half-stator” and bears the reference 30.
  • the part of stator 22 located on the outer side of door 2 is called “outer half-stator” and bears the reference the reference 32.
  • the half-stators 30 and 32 are almost symmetrical to each other with respect to the plane 28. Thus, only the half-stator 32 is described in more detail by the following.
  • the half-stator 32 comprises a front cover 34 parallel to the plane 28 and directly exposed outside the door 2. This front cover prevents having direct access to the moving parts located inside the cylinder 12 so as to protect them against break-in attempts.
  • This cover 34 is crossed by an orifice 36 intended to receive a blade 38 of the key 16.
  • the orifice 36 is centered on the axis 20.
  • the orifice 36 is shaped so as to allow the introduction of the blade 38 to inside the cylinder 12 by a translational movement along the axis 20.
  • the axis 20 is therefore an axis for introducing the key 16 inside the cylinder 12.
  • the orifice 36 is also shaped to allow the key 16 introduced inside the cylinder 12 to turn on itself around the axis 20.
  • the key 16 comprises a transceiver 40 capable of transmitting, via an electrical connection, the access code to the cylinder 12 .
  • the key 16 comprises a body 39 from which the blade 38 extends.
  • the blade 38 is fixed without any degree of freedom to the body 39.
  • the body 39 forms a means of gripping the key.
  • the body 39 is shaped to be gripped by the fingers of the user in order to introduce the blade 38 inside the orifice 36.
  • the body 39 is also shaped to allow the user to rotate the blade 38, around axis 20, inside cylinder 12.
  • Body 39 also forms a housing inside which is received an electronic circuit 120 ( Figure 4 ) of the key 16.
  • the body 39 mechanically and electrically isolates the electronic circuit 120 from the external environment.
  • the blade 38 has no pattern in relief intended to move the pins of the lock to cause mechanical unlocking of the lock 6.
  • the blade 38 comprises at least one pattern capable of cooperating with a pattern of complementary shape on a rotor of cylinder 12 to drive this rotor in rotation when the key turns.
  • this pattern on blade 38 is a flat 42 located on its distal end.
  • Key 16 is used to power cylinder 12 via electrical connections. These electrical connections are established only when the blade 38 is introduced inside the cylinder 12.
  • the blade 38 comprises electrical contacts capable of cooperating with corresponding electrical contacts of the cylinder 12 to establish these electrical connections between the key 16 and the cylinder 12.
  • the blade 38 comprises six electrical contacts arranged symmetrically on either side of the axis of the blade 38.
  • the contacts symmetrical to one of the other are part of the same conductive ring. In the figures, only the contacts 44 to 46 located on the same side of the blade 38 are visible.
  • the key 16 to power the cylinder 12, the key 16 comprises a main generator 41 and an auxiliary generator 43.
  • the generator 41 is capable of supplying, on its own, to the cylinder 12, a quantity Q of electrical energy .
  • the quantity Q is the quantity of electrical energy necessary for the cylinder 12 to be able to be unlocked in response to the reception of a valid access code transmitted by the key 16.
  • the quantity Q therefore corresponds to the quantity of energy consumed by the key 16 and the cylinder 12 to manage to move the cylinder 12 into its unlocked position.
  • the generator 41 is said to be “main” because it is the one which is normally used to supply the cylinder 12.
  • the generator 41 is an energy recovery device able to generate the quantity Q of energy from a displacement of the key 16 by the user. This energy recovery device is described in more detail with reference to the figures 8 to 13 .
  • the generator 43 is called “auxiliary" because it is used to supply the cylinder 12 in the event of failure of the generator 41. This generator 43 is described in more detail with reference to the figure 4 .
  • Stator 22 comprises a cylindrical channel 50, of circular cross-section, crossing right through stator 22 and therefore the two half-stators 30 and 32.
  • This channel 50 extends along axis 20.
  • axis 20 coincides with the axis of symmetry of revolution of channel 50.
  • the channel 50 receives a rotor 52.
  • the rotor 52 is for example identical to that described in more detail, in particular, with reference to the figures 5 and 6 demand FR3025236 .
  • the rotor 52 comprises a housing 96 capable of receiving the end of the blade 38.
  • the cross section of this housing 96 comprises at least one shape complementary to the end of the blade 38 so as to be meshed in rotation by the blade 38.
  • this complementary shape is a flat capable of meshing with the flat 42 of the blade 38.
  • channel 50 opens into cover 34 opposite orifice 36.
  • the half-stator 32 comprises a shell 54 located entirely on the exterior side of the plane 28 and half of a strip 56 located on the exterior side of this plane 28.
  • the strip 56 is symmetrical with respect to the plane 28.
  • the shell 54 includes the front cover 34, the orifice 36 and half of the channel 50 located on the exterior side.
  • the shell 54 is formed from a single block of rigid material.
  • rigid material or “rigid material”, is meant a material whose Young's modulus at 25° C. is greater than 100 GPa or 150 GPa and, preferably, greater than 200 GPa.
  • the half-stator 32 comprises a controllable mechanism 76 for unlocking the cylinder.
  • This mechanism 76 is able to move a member 80 for blocking the rotation of the rotor 52.
  • This mechanism 76 is fixed, without degree of freedom, on the shell 54.
  • the mechanism 76 and the member 80 are similar or identical. to those described in the application FR3025236 . To increase the readability of the picture 3 , the representations of the mechanism 76 and of the member 80 have been simplified.
  • the member 80 moves in translation between a blocking position (shown on the picture 3 ) and a retracted position.
  • a distal end of the member 80 is received inside a crevice arranged in the rotor 52 to prevent the rotation of this rotor around the axis 20.
  • the distal end of the member 80 is located outside the crevice, so that the rotor 52 can be driven in rotation by the key 16 around the axis 20.
  • the member 80 moves only in translation between its blocking position and its retracted position.
  • this translational displacement is parallel to the Z direction.
  • the mechanism 76 typically comprises a controllable electric actuator 82 and an electronic unit 84 for controlling this actuator 82.
  • the actuator 82 moves from an active position to an inactive position. .
  • the member 80 can be freely moved from its locking position to its retracted position when the key 16 is turned inside the cylinder 12.
  • the actuator 82 holds the member 80 in its locking position.
  • actuator 82 is in its active position and member 80 cannot be moved to its retracted position.
  • the actuator 82 Once the actuator 82 has reached its inactive position, it remains in its inactive position until the key 16 is removed from the cylinder 12. Typically, the actuator 82 is maintained in its inactive position without consuming energy.
  • the actuator 82 comprises a magnet mechanism which keeps it in its inactive position until the removal of the key 16.
  • the displacement of the actuator 82 from its inactive position to its active position is here mechanically driven by the movement of the key when it is removed from the cylinder 12.
  • the unit 84 compares the access code received with pre-recorded access codes. If the access code received matches one of the access codes prerecorded, then the unit 84 transmits the unlock command. Otherwise, the unit 84 does not transmit this unlocking command.
  • unit 84 communicates with transceiver 40 via an electrical link 106 which is established when key 16 is fully inserted into channel 50. At the same time, key 16 transmits the energy required to power mechanism 76 via two electrical connections 107 and 108.
  • Connection 106 is established via contact 44 and an electrical contact 100 of half-stator 32.
  • Connections 107 and 108 are established via contacts 45, 46 and two electrical contacts 101 and 102 of half-stator 32. Electrical connections 106 to 108 are wired connections.
  • the electrical contacts 100 to 102 are, for example, structurally identical to each other.
  • these contacts 100 to 102 are made as described in the application EP3431684 .
  • FIG. 4 schematically represents the electronic circuit 120 of the key 16.
  • Generators 41 and 43 are connected in parallel between electrical pads 124 and 126. More specifically, each of generators 41 and 43 includes a negative electrode and a positive electrode. The negative electrode is at a lower electrical potential than the positive electrode. The negative electrode corresponds to the ground of the electric circuit of the key 16. The negative electrodes of the generators 41, 43 are connected to the pad 124 and the positive electrodes of the generators 41, 43 are connected to the pad 126. The pads 124 and 126 are directly connected, respectively, to the electrical contacts 45 and 46 via electrical conductors.
  • connection means “electrically connected”.
  • directly connected means that two electrical components are connected to each other, only by a wired connection and therefore without passing through another electrical or electronic component different from a wired connection.
  • a wire connection or an electrical conductor is typically an electrical wire, for example of circular section, or an electrical track of a printed circuit.
  • the transceiver 40 modulates the information to be transmitted to the cylinder 12 via the contact 44. In the opposite direction, it demodulates the information received via the contact 44.
  • the transceiver 40 is permanently connected between the pads 124, 126 and the electrical contact 44. More specifically, the transceiver 40 is connected to the pad 44 by a electrical conductor.
  • the information exchanged between the transceiver 40 and the microcontroller 140 is in baseband.
  • the electromagnetic radiation implemented for the operation of the antenna 136 is radiated at the frequency of 13.56 MHz.
  • the memory 152 includes in particular the instructions of an access control module 156.
  • the memory 152 also includes access rights which make it possible to trigger the unlocking of the cylinder 12.
  • the access rights of the key 16 include in particular the access code to be transmitted to the cylinder 12 to trigger its unlocking.
  • module 156 When executed, the module 156 causes the operations to be carried out which manage the interaction of the key 16 with the cylinder 12 to trigger and, alternately, prevent the unlocking of this cylinder.
  • module 156 includes instructions for sending the access code of key 16 to cylinder 12 via port 146 and transceiver 40.
  • the generator 43 transforms the electromagnetic radiation of a near-field transceiver into electrical energy delivered between the pads 124 and 126 and capable of powering the microcontroller 140, the transceiver 40 and the mechanism 76 for unlocking the cylinder 12
  • the near-field transceiver is an NFC transceiver, i.e. conforms to the NFC standard. This is typically the NFC transceiver with which most mobile phones are now equipped.
  • the generator 43 comprises the antenna 136 and a rectifier 180 connected between terminals 182, 184 of the antenna 136. When the antenna 136 is exposed to electromagnetic radiation from an NFC transceiver located nearby, it generates an alternating current between terminals 182 and 184.
  • Capacitor 188 is used here to filter high frequencies. For this purpose, its capacity is small. In particular, the capacitance of capacitor 188 does not allow the quantity Q of energy necessary to supply the key 16 and the cylinder 12 to be contained here. More precisely, in this embodiment, the key 16 has no battery or capacitor. having a capacity large enough to store the quantity Q of energy therein. The absence of such a battery or such a large capacity capacitor makes it possible to limit the size of the electronic circuit 120.
  • the key 16 comprises a moving part 200 which moves, relative to the body 39 of the key, from an advanced position to a retracted position when the introduces the blade 38 into the channel 50.
  • the advanced and retracted positions of the moving part 200 are represented, respectively, on the figures 5 and 6 .
  • the moving part 200 is a protective shutter that can be moved in translation along the axis of the blade 38 between the advanced position of the figure 5 and the retracted position of the figure 6 .
  • the reference numeral 200 is used both to designate the moving part and the protective flap.
  • This protection component is for example similar to that described in the application EP3477026 .
  • the flap 200 In the advanced position, the flap 200 completely covers the contacts 44 to 46. In this advanced position, the flap 200 therefore protects the electrical contacts from external attacks. The flap 200 also makes it possible to prevent the contacts 44 to 46 from being accidentally short-circuited together when the key 16 is stored.
  • the contacts 44 to 46 are directly exposed to their external environment, which allows them to come into direct mechanical and electrical contact with the electrical contacts 100 to 102.
  • the flap 200 is formed of an end piece 202, made of rigid material, mounted freely in translation along the blade 38.
  • This end piece 202 completely surrounds the blade 38. Its cross section is similar to that of the blade 38. By example, it has an upper flat and a lower flat.
  • the tip 202 has a distal end 206 able to move, by shape cooperation with a corresponding stop of the cylinder 12, the tip 202 from the advanced position to the position retracted when the blade 38 is introduced inside the channel 50.
  • this distal end 206 corresponds to the annular distal end of the tip 202 facing the distal end of the blade 38.
  • the distal end 206 first comes to bear directly on the periphery of the orifice 36. Then, as the user pushes the blade 38 inside the channel 50, the periphery of the orifice 36 cooperates with the distal end 206 to simultaneously move the flap 200 from its advanced position to its retracted position. It is therefore the periphery of the orifice 36 which here constitutes the corresponding stop of the cylinder 12.
  • the tip 202 On the side opposite the distal end 206, the tip 202 has an annular proximal end 208.
  • this annular proximal end takes the form of a flange projecting around its periphery.
  • the key 16 comprises a cap 210 fixed without any degree of freedom to the body 39.
  • This cap 210 completely encircles a proximal portion of the blade 38 while providing around this proximal portion a hollow space capable of entirely receiving the tip 202 when the latter is in its retracted position and only partially when the end piece 202 is in its advanced position.
  • cap 210 has an opening through which tip 202 slides between its retracted and advanced positions. In the advanced position, the flange 208 comes to rest on the periphery of this opening, which retains the tip 202 around the blade 38.
  • the key 16 also includes a spring 212 capable of automatically moving the flap 200 from its retracted position to its advanced position as soon as the distal end 206 is no longer resting on the periphery of the orifice 36.
  • the spring 212 urges this effect permanently the tip 202 to its forward position.
  • the spring 212 is a helical spring which surrounds the proximal portion of the blade 38. On one side, it bears against the flange 208 and, on the opposite side, it bears against the body 39.
  • the spring 212 is also housed inside the cap 210 so that it is not accessible from the outside of the key 16.
  • the stiffness of the spring 212 is 0.15 N/mm and its compression stroke is 12 mm.
  • FIG 7 represents the key 16 in a configuration where a part of the body 39 has been removed to reveal a printed circuit 230 on which are fixed the various components of the electronic circuit 120. More precisely, the figure 7 shows the side of the printed circuit 230 on which the antenna 136 is made. The other components of the electronic circuit 120 are fixed on the other side of the printed circuit. The printed circuit 230 is entirely received inside the body 39. In this figure the flap 200 is not shown.
  • the generator 41 will now be described in more detail with reference to the figures 8 to 13 .
  • the principle of operation of the generator 41 is identical to that described in detail in the application EP2765264 .
  • this principle of operation is here adapted so that the generator 41 transforms the movement of the flap 200 from its advanced position to its retracted position into electrical energy to supply the cylinder 12 and the key 16.
  • the generator 41 transforms the movement of the flap 200 from its advanced position to its retracted position into electrical energy to supply the cylinder 12 and the key 16.
  • one end of the spring 240 is fixed to an immobile anchor point integral with the body 39.
  • the opposite end of the spring 240 is fixed to a movable pin 244.
  • the pin 244 is a solid cylinder. extending in a direction perpendicular to the faces of the printed circuit 230.
  • the spring 240 is a coil spring. In its constrained state, the spring 240 is tighter than in its relaxed state. The stiffness of this spring 240 is constant or as described in detail with reference to the figure 8 demand EP2765264 .
  • Transformer 242 converts mechanical rotational motion into electrical energy. For this purpose, it comprises a shaft 248 ( figure 8 ) on which is fixed, without any degree of freedom, a toothed wheel 250 ( figure 8 ).
  • Transformer 242 also includes alternator 254 ( figures 8 to 13 ) mechanically connected to shaft 248 to convert the rotation of shaft 248 into electrical energy.
  • alternator 254 is a permanent magnet machine like the one described in application EP1808816 .
  • This alternator 254 is electrically connected to a rectifier which makes it possible to transform the alternating voltage generated by the alternator 254 into direct voltage delivered between the pads 124 and 126. This rectifier is conventional and has not been shown in the figures.
  • the generator 41 comprises a trigger 262 on which is fixed, without any degree of freedom, the pin 244.
  • the key 16 comprises a rod 260 ( Figures 9 to 13 ) actuation which transmits the movement of the flap 200 to the pin 244.
  • the rod 260 extends mainly parallel to the axis 20 of introduction of the key.
  • a first end of the rod 260 is fixed, without any degree of freedom, to the flap 200.
  • the first end is fixed to the collar 208.
  • a second free end, opposite the first end, is shaped to bear directly on the pin 244 and push it from its proximal position to its distal position when the flap 200 moves from its advanced position to its retracted position .
  • the trigger 262 is shaped to switch automatically from the locked state to the unlocked state when the pin 244 reaches its distal position and this without consuming electrical energy.
  • the trigger 262 is mounted in rotation around an axis 266 ( Figures 8 to 10 ) extending perpendicularly to the faces of the printed circuit 230. Under these conditions, the trajectory of the pin 244 between its proximal position and its distal position is an arc of a circle.
  • the pin 244 is eccentric with respect to the axis 266 so that a rotational movement of the trigger 262 stretches the spring 240, which causes it to pass from its relaxed state to its constrained state.
  • the trigger 262 is in the locked state only during the translation of the flap 200 from its advanced position to its retracted position.
  • the trigger 262 is shaped so that the return force of the spring 240 permanently urges the pin 244 against the second end of the rod 260 when the flap 200 moves from its advanced position to its retracted position.
  • axis 266 is positioned so that pin 244 is below a plane 267 (see figure 11 ) as the pin 244 moves from its proximal position to its distal position.
  • the plane 267 contains the axis 266 and passes through the immobile anchor point of the spring 240.
  • the position of the pin 244 on the trigger 262 is chosen so that the pin 244 crosses this plane 267 at the moment when the pin 244 reaches its distal position. As soon as the pin 244 passes the distal position, the pin 244 passes above the plane 267. As explained below, we thus obtain an automatic passage of the trigger 262 from its locked state to its unlocked state when the pin 244 reaches its distal position.
  • the spring 240 In the unlocked position of the trigger 262, the spring 240 returns from its constrained state to its released state independently of the movement of the shutter 200. This therefore releases the difference in potential energy between these two states in the form of kinetic energy, it that is to say here in the form of a rotational movement of the trigger 262.
  • the trigger 262 includes a toothed wheel sector 268 ( Picture 8 ) capable of meshing with the wheel R4 at least in the locked state.
  • the toothed sector 268 is here sufficiently small to disengage automatically from the toothed wheel R4 before the trigger 262 stops. Thanks to this, the shaft 248 can continue to rotate under the effect of its inertia and the inertia of the multiplier 252 and the wheel 250 even after the trigger 262 has come to a stop.
  • the notched sector 268 extends over an angular sector less than 315° or 300° and, preferably, greater than 180°.
  • the vertex angle of this angular sector is located on the axis 266.
  • the trigger 262 cannot mesh with the wheel R4.
  • the method begins with a phase 300 of ordinary power supply of the cylinder 12. If the phase 300 fails, for example because the generator 41 is faulty, then a phase 302 of emergency power supply is executed. As soon as the key 16 and the cylinder 12 are powered, whether following the execution of phase 300 or of phase 302, an access control phase 304 is executed.
  • the phase 300 begins with a step 310 during which a user introduces the key 16 inside the channel 50 by pushing it along the axis 20 in the direction X.
  • the flap 200 is in its advanced position and the pin 244 is in its proximal position as shown in the figure 9 . Then, the distal end 206 of the flap 200 bears directly on the cover 34 of the cylinder 12.
  • a step 312 the user continues to push the key 16 inside the channel 50 in the direction of insertion X. This moves the flap 200 from its position advanced to its retracted position. At the same time, the second end of the rod 260 sinks inside the body 39. At one point, during this movement, the second end of the rod 260 then comes into mechanical support on the pin 244 as shown in there figure 10 . From this moment, the movement of the flap 200 is transmitted by the rod 260 to the pin 244 which then moves from its proximal position to its distal position. During this movement, given that the pin 244 is located below the plane 267, the return force exerted by the spring 240 keeps the pin 244 bearing on the second end of the rod 260. The trigger 262 is therefore in its locked state. Consequently, it rotates clockwise at the same time as the user pushes the key 16 inside the channel 50. This movement of the trigger 262 moves the spring 240 from its relaxed state to its constrained state.
  • the pin 244 reaches its distal position represented on the figure 11 .
  • the spring 240 reaches its constrained state and the electrical contacts 44 to 46 come into mechanical support on, respectively, the contacts 100 to 102.
  • the electrical connections 106 to 108 between the key 16 and cylinder 12 are established.
  • the spring 240 is dimensioned to be sure that the difference ⁇ E P between the potential energies stored in the relaxed and constrained states is sufficient to produce the quantity Q of electrical energy.
  • pawn 244 is in plane 267.
  • the pin 244 crosses the plane 267.
  • the restoring force of the spring 240 then causes the trigger 262 to turn clockwise.
  • the pin 244 moves away from the second end of the rod 260 and returns, by rotating clockwise, to its proximal position as shown in the figure 12 .
  • the difference ⁇ E P of potential energies stored in the spring 240 is released in the form of kinetic energy.
  • the toothed sector 268 is meshed with the toothed wheel R4.
  • the kinetic energy of trigger 262 is transmitted to shaft 248 through multiplier 252.
  • the pin 244 comes into abutment against the upper horizontal edge of the rod 260 as shown in the figure 13 .
  • the rotational movement of the trigger 262 stops and the latter is immobilized.
  • the toothed sector 268 disengages, here disengages, from the toothed wheel R4.
  • the notched sector 268 disengages from the wheel R4 just before the pin 244 comes into abutment against the edge of the rod 260.
  • the shaft 248 continues to rotate on itself because of its inertia and the inertia of the multiplier 252 and the wheel 250.
  • the alternator 254 transforms this rotation into electrical energy which is transmitted, here as it is produced and after having been rectified, to the microcontroller 140, to the transceiver 40 and, via the electrical connections 107 and 108, to the cylinder 12.
  • a prototype of the generator 41 described here showed that it was possible to recover 7.5 mJ during the 100 ms which begins from the execution of step 316.
  • the average speed of rotation of the shaft 248 is d around 16200 rpm during these 100ms. These 7.5 mJ are greater than the quantity Q.
  • access control phase 304 is executed in parallel with step 322. More specifically, phase 304 begins as soon as microcontroller 140 and control unit 84 are supplied with a voltage allowing their operation.
  • Phase 304 typically includes a step 330 during which key 16 transmits to unit 84, via wired link 106, the access code contained in its memory 152.
  • unit 84 verifies if the access code received is valid. If so, unit 84 generates the unlock command. Actuator 82 then moves into its active position and the user can then freely turn key 16 to move cylinder 12 into its unlocked position. In the event that the access code received is invalid, unit 84 does not generate the unlocking command and cylinder 12 remains in its locked position.
  • step 330 After step 330, during a step 332, the user removes key 16 from channel 50. Electrical connections 106 to 108 are then broken.
  • the flap 200 returns to its advanced position under the action of the spring 212.
  • the rod 260 returns at the same time to its initial position shown on the figure 9 .
  • the spring 240 returns the pin 244 to its proximal position.
  • the user establishes an energy transmission link between key 16 and cylinder 12 which makes it possible to power cylinder 12 from key 16.
  • the user introduces the key 16 into the cylinder 12 and pushes the blade 38 inside the channel 50 until reaching a depressed position where the electrical contacts 44 to 46 come into mechanical support on, respectively, the contacts 100 to 102.
  • the electrical connections 106 to 108 between the key 16 and the cylinder 12 are established.
  • the user activates the NFC transceiver of his mobile telephone if it is not already active. From this moment, this transmitter-receiver radiates an electromagnetic field capable of being transformed into electrical energy by the generator 43 of the key 16.
  • the user places his mobile phone close to the key 16, that is to say in this case less than 20 cm or less than 10 cm from the body 39 of the key 16.
  • the antenna 136 is then exposed to the electromagnetic field of the NFC transceiver of the mobile telephone.
  • the generator 43 transforms its electromagnetic radiation into electrical energy delivered between the pads 124 and 126 and therefore directly between the contacts 45 and 46.
  • the electrical energy produced by the generator 43 is therefore transmitted to the as it is produced at the unit 84 via the electrical connections 107 and 108.
  • the quantity Q of energy necessary to unlock the cylinder 12 is not d first stored in a battery with a capacity greater than Q and then returned to cylinder 12.
  • the generator 43 As long as the mobile phone is kept close to the key 16, the generator 43 generates electrical energy. Here, the user keeps his mobile phone near the key 16 for a sufficient time to unlock the cylinder 12.
  • phase 304 is executed in parallel with step 354.
  • the mobile telephone transmits data to the key 16 by the intermediary of the NFC link.
  • the key 16 stores the data received in its memory 152 or transmits them directly to the cylinder 12 via the link 106.
  • the cylinder 12 transmits data to the key 16 via the link 106 and, in response, the key 16 transmits them to the mobile phone via the NFC link.
  • the electrical contacts of the key are not necessarily located on the blade 38.
  • they are located on a part of the body 39 which bears against the cover 34 of the cylinder 12.
  • the cover 34 is equipped with the electrical contacts 100 to 102 necessary to establish the wired electrical connections between the key and this cylinder.
  • the transmission of access rights can be done by means of a wireless information transmission link established between the key and the electronic cylinder.
  • the electronic circuit 120 of the key may be identical to that described in the application filed on February 04, 2021 under number FR2101057 .
  • the generators 41 and 43 are connected in parallel between the pads 124 and 126 of the electronic circuit of the demand FR2101057 instead of the battery.
  • the electronic circuit of the control unit 84 is made as described in this application. FR2101057 .
  • the electronic circuit 120 comprises a battery connected between the pads 124 and 126.
  • the electrical energy generated by the generator 41 and/or the generator 43 is first temporarily stored in this battery, then subsequently transmitted to the cylinder.
  • the capacity of this battery is small, that is to say insufficient to store the quantity Q of energy.
  • the use of a large capacity battery, that is to say capable of storing the quantity Q of energy, to fulfill the same role is also possible.
  • Transceiver 138 can be omitted.
  • the key 16 is not capable of exchanging data with the mobile telephone via the NFC link.
  • the transformation of the electromagnetic radiation emitted by the NFC transceiver of the mobile telephone into electrical energy remains possible. In the latter case, it is not necessary for the mobile telephone to modulate the electromagnetic radiation emitted by its NFC transceiver in order to encode data therein.
  • the rod 260 does not bear directly on the pin 244, but on a cleat distinct from the pin 244. This cleat is fixed without any degree of freedom to the trigger 262 as described, for example, in the application EP2765264 .
  • the moving part 200 does not form a shutter for protecting the electrical contacts of the key.
  • the moving part can also be a simple rod which slides along the blade 38 when the key is introduced into the cylinder 12 without this rod also fulfilling the function of a shutter for protecting the electrical contacts.
  • the key may include a protective flap which is then a part mechanically separate from the moving part.
  • the protective shutter is omitted.
  • the moving part coincides with the blade 38 of the key.
  • the blade 38 is movable, relative to the body 39, in translation along the axis 20 of introduction of the key.
  • the abutment of the cylinder 12 is then formed, for example, by the bottom of the channel 50.
  • the blade 38 is introduced into the channel 50 until its distal end comes into abutment against the bottom of the channel. From this moment, when the user pushes on the body 39 to push the key even further inside the channel 50, the blade 38 moves from this advanced position to a retracted position inside the body 39. It is this movement of the blade 38 towards the inside of the body 39 which is then transformed by the generator 41 into electrical energy.
  • the movement of the mobile part between its advanced and retracted positions is not a movement in translation.
  • the moving part pivots around an axis integral with the body 39. It is this rotational movement which is then converted into electrical energy by the generator 41.
  • the different embodiments of such an energy harvesting device described in applications EP2765264 And EP1808816 can be adapted to be housed in the body 39 of the key 16 and to use the movement of the movable part 200 relative to the body 39 instead of the movement of the blade 38 in the electronic cylinder, to generate electrical energy .
  • alternator 254 is replaced by a direct current generator or a piezoelectric generator.
  • the electromagnetic field transformed into electrical energy by the auxiliary generator can be any magnetic field generated by a mobile telephone and sufficiently energetic to allow the generation, by the auxiliary generator, of the quantity Q of energy in less than 200 ms or in less than 100ms when the mobile phone is within 20cm of the auxiliary generator.
  • the electromagnetic field that fulfills these conditions is the electromagnetic field used to establish an NFC link.
  • any magnetic field generated by the mobile telephone and which is sufficiently energetic, when the mobile telephone is less than 20 cm from the key can be used instead of the magnetic field radiated at 13.56 MHz.
  • it is sufficiently energetic it is also possible to use the magnetic field used to establish a Wi-Fi link conforming to the standards of the IEEE 802.11 group or a link conforming to the Bluetooth standard.
  • generator 43 Other embodiments of the generator 43 are possible.
  • other more sophisticated rectifiers than rectifier 180 can be used to rectify the alternating current generated by antenna 136.
  • the characteristics of the generator 41 which make it possible to produce the quantity Q of energy from the movement of the mobile part 200 can be implemented independently of the characteristics necessary for the implementation of the emergency power supply phase 302 .
  • the auxiliary generator can be made differently from what has been described in the particular case of the generator 43.
  • the auxiliary generator does not generate electrical energy from the electromagnetic radiation of a transmitter- near-field receiver.
  • the generator 43 is replaced by an auxiliary generator which comprises only a battery capable of supplying a quantity of energy greater than the quantity Q of energy when this battery is connected between the electrical contacts 45 and 46.
  • the quantity of energy stored in this battery is then at least twice greater than the quantity Q so as to allow several uses of this auxiliary generator.
  • the connection of this battery between the electrical contacts 45 and 46 to power the cylinder 12 is, for example, triggered by pressing a button located on the key.
  • the auxiliary generator 43 is omitted. In this case, if the generator 41 is faulty, the key can no longer be used to power the cylinder 12.
  • the characteristics of the generator 43 which make it possible to execute the emergency power supply phase 302 can be implemented independently of the characteristics of the generator 41 which make it possible to produce the quantity Q of energy from the movement of the moving part 200.
  • the transmission of electrical energy from key 16 to cylinder 12 can be done via a wireless energy transmission link.
  • the wireless power transmission link is made in a manner similar to what has been described for transmitting electrical power from the mobile telephone to the key.
  • an additional antenna is housed in the key and an antenna is housed in the cylinder. These two antennas are configured to wirelessly transmit the energy from the key to the cylinder, preferably using a frequency different from that used to establish the NFC link.
  • the generator 41 it is not necessary for the energy recovery device to use the movement of a moving part which protrudes outside the body 39.
  • this energy recovery device is made as described in one of the following requests: EP1039074 , DE202017103124 , WO200065180 .
  • the moving part is not moved by shape cooperation with the electronic lock when the key is introduced inside the cylinder.
  • the main generator is not an energy harvesting device.
  • the main generator is a simple electric battery capable of storing an amount of energy greater than several hundred times the quantity Q and which must be replaced once it is discharged.
  • the main generator is housed in cylinder 12. In this case, it is connected between contacts 101 and 102.
  • the main generator is housed inside cylinder 12, it is for example identical to that described in the request EP2765264 .
  • the main generator can also be in this case a replaceable battery housed in the cylinder 12.
  • the main generator can also be a transformer, housed in the cylinder 12, which is connected to an electricity distribution network.
  • the main generator is omitted.
  • the cylinder 12 is systematically supplied via the generator 43.
  • the moving part 200 is moved from its advanced position to its retracted position when the key is introduced into the cylinder 12 guarantees that the electrical energy produced by the energy recovery device is produced just before unlocking the cylinder 12.
  • the storage time of the electrical energy in this battery is very short so that the battery does not has practically no time to discharge before the energy it contains is consumed by the cylinder 12.
  • the fact that the movement of the moving part is actuated by the introduction of the key into the cylinder avoids the user having to perform superfluous movements with the key which are only used to reload this key. For example, the user does not need to shake the key before using it.
  • the moving part 200 also forms a shutter for protecting the electrical contacts 44 to 46 prevents these electrical contacts from being damaged when the key collides with other keys of the same key ring or with objects located in same user pocket.
  • the flap prevents the electrical contacts from being shorted to each other by a metal object attached to the same key ring.
  • the tubular end piece makes it possible to simply retain the moving part 200 around the blade 38.
  • auxiliary generator 43 in the key simply compensates for a failure of the energy recovery device.
  • the energy recovery device generates on each introduction of the key into the cylinder 12 a quantity of energy greater than or equal to the quantity Q and transmits it directly to the cylinder 12 without temporarily storing it in the key, makes it possible to avoid the use of a battery capable of fully storing the quantity Q of energy necessary for the operation of the cylinder 12. Thus, this makes it possible to avoid the use of a battery having a large capacity and therefore to limit the clutter of the key.
  • auxiliary generator is housed inside the same key used to unlock the electronic cylinder, ensures that when the user discovers the failure of the main generator when trying to unlock the cylinder 12, then he necessarily has on it the auxiliary generator 43 since it is housed inside the key 16.
  • auxiliary generator transmits the electrical energy to the cylinder 12 as it is produced, makes it possible to avoid having to temporarily store the quantity Q of energy in a battery of the key. This makes it possible to avoid the problems linked to the discharge of such a battery over time. This also makes it possible to reduce the size of the key.
  • auxiliary generator 43 exploits the electrical energy stored in the battery of the user's mobile telephone rather than that stored in a battery of the key increases the availability of the emergency power supply phase. In fact, today, a user rarely forgets to charge his mobile telephone, whereas he can more easily forget to charge the battery of a key or to replace the battery of this key.
  • the key equipped with the auxiliary generator 43 can easily replace keys in which the auxiliary generator includes a battery. Indeed, the implementation of the emergency power supply phase does not require any modification of the cylinder 12.
  • the generators 41 and 43 use the same power transmission link simplifies the architecture of the key/cylinder assembly. Furthermore, the fact that the main generator is also housed inside the key simplifies the architecture of the cylinder 12, since the latter can then be completely devoid of an internal power source. Finally, the cylinder 12 operates in the same way both when powered by the main generator 41 and by the auxiliary generator 43.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
EP22187709.5A 2021-09-09 2022-07-29 Verfahren zur stromversorgung eines elektronischen zylinders eines schlosses Pending EP4148216A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2109475A FR3126726B1 (fr) 2021-09-09 2021-09-09 Procédé d'alimentation d'un cylindre électronique d'une serrure

Publications (1)

Publication Number Publication Date
EP4148216A1 true EP4148216A1 (de) 2023-03-15

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EP (1) EP4148216A1 (de)
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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101057A7 (de) 1970-08-14 1972-03-31 Signaux Entr Electriques
DE19918817C1 (de) 1999-04-26 2000-09-07 Huf Huelsbeck & Fuerst Gmbh Elektronischer Schlüssel, insbesondere für Fahrzeuge
EP1039074A1 (de) 1999-03-23 2000-09-27 EVVA-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. Kommanditgesellschaft Schlüssel für die Betätigung von elektronisch gesicherten Schlössern
EP1808816A1 (de) 2005-12-16 2007-07-18 Iloq Oy Elektromechanisches Schloss und zugehöriges Betriebsverfahren
EP2674552A1 (de) 2012-06-12 2013-12-18 iLoq Oy Elektromechanische Schloss
EP2765264A1 (de) 2013-02-07 2014-08-13 Cogelec Elektronisches Schloss
FR3025236A1 (fr) 2014-09-02 2016-03-04 Cogelec Cylindre de serrure
DE202017103124U1 (de) 2017-05-23 2017-06-28 Assa Abloy Sicherheitstechnik Gmbh Schlüssel für ein elektronisch oder elektrisch betätigbares Schließsystem
EP3220362A1 (de) 2016-03-18 2017-09-20 Cogelec Anornung zum entriegeln einer zugangstür zu einem raum
EP3308104A1 (de) 2015-06-10 2018-04-18 Commissariat à l'énergie atomique et aux énergies alternatives Verfahren zur verarbeitung von messungen von mindestens einem elektronischen sensor in einer tragbaren vorrichtung
EP3431684A1 (de) 2017-07-21 2019-01-23 Cogelec Elektronisches schloss
EP3477026A1 (de) 2017-10-27 2019-05-01 Cogelec Elektronischer schlüssel für ein elektronisches schloss

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101057A7 (de) 1970-08-14 1972-03-31 Signaux Entr Electriques
EP1039074A1 (de) 1999-03-23 2000-09-27 EVVA-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. Kommanditgesellschaft Schlüssel für die Betätigung von elektronisch gesicherten Schlössern
DE19918817C1 (de) 1999-04-26 2000-09-07 Huf Huelsbeck & Fuerst Gmbh Elektronischer Schlüssel, insbesondere für Fahrzeuge
WO2000065180A1 (de) 1999-04-26 2000-11-02 Huf Hülsbeck & Fürst Gmbh & Co. Kg Elektronischer schlüssel, insbesondere für fahrzeuge
EP1808816A1 (de) 2005-12-16 2007-07-18 Iloq Oy Elektromechanisches Schloss und zugehöriges Betriebsverfahren
EP2674552A1 (de) 2012-06-12 2013-12-18 iLoq Oy Elektromechanische Schloss
EP2765264A1 (de) 2013-02-07 2014-08-13 Cogelec Elektronisches Schloss
FR3025236A1 (fr) 2014-09-02 2016-03-04 Cogelec Cylindre de serrure
EP3308104A1 (de) 2015-06-10 2018-04-18 Commissariat à l'énergie atomique et aux énergies alternatives Verfahren zur verarbeitung von messungen von mindestens einem elektronischen sensor in einer tragbaren vorrichtung
EP3220362A1 (de) 2016-03-18 2017-09-20 Cogelec Anornung zum entriegeln einer zugangstür zu einem raum
DE202017103124U1 (de) 2017-05-23 2017-06-28 Assa Abloy Sicherheitstechnik Gmbh Schlüssel für ein elektronisch oder elektrisch betätigbares Schließsystem
EP3431684A1 (de) 2017-07-21 2019-01-23 Cogelec Elektronisches schloss
EP3477026A1 (de) 2017-10-27 2019-05-01 Cogelec Elektronischer schlüssel für ein elektronisches schloss

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FR3126726B1 (fr) 2023-07-28
FR3126726A1 (fr) 2023-03-10

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