CN-122029333-A - Electronic lock core lock

Abstract

An electronic lock cylinder lock (1) comprising a rotor (2), an actuation cam (3) for operating a lock opening mechanism, and a latch element (4) slidably supported in the rotor (2) between a latched position and an unlatched position between the rotor (2) and the actuation cam (3), there being housed in the rotor (2) a moving actuator for the latch element (4) comprising an electric motor, a rotatable element (5) capable of being driven in rotation by the electric motor, and magnetic coupling means between the rotatable element (5) and the sliding latch element (4), wherein said magnetic coupling means comprise at least one primary permanent magnet (6, 7) attached to the rotatable element (5) and at least one secondary permanent magnet (8, 9) attached to the sliding latch element (4).

Inventors

• CLAUDIO RICH
• Federico Maria Real to
• Matteo Kalzafee

Assignees

• 伊赛奥锁具有限公司

Dates

Publication Date

20260512

Application Date

20241007

Priority Date

20231020

Claims (12)

1. 1. An electronic lock (1) with a lock core, comprising a rotor (2), an actuation cam (3) for a lock opening mechanism, a latch element (4) slidably supported in the rotor (2) between a latched position and an unlatched position between the rotor (2) and the actuation cam (3), characterized in that an actuator for moving the latch element (4) is accommodated in the rotor (2), the actuator comprising an electric motor, a rotatable element (5) drivable in rotation by the electric motor and means for magnetic coupling between the rotatable element (5) and the slidable latch element (4), wherein the means for magnetic coupling comprises at least one primary permanent magnet (6, 7) fixed to the rotatable element (5) and at least one secondary permanent magnet (8, 9) fixed to the slidable latch element (4).
2. 2. Electronic lock (1) according to claim 1, characterized in that the rotatable element (5) performs a reversible stroke between an end-of-travel position at closing and an end-of-travel position at opening, in which end-of-travel position the rotatable element controls the switching of the latching element (4) from the unlatched position to the latched position.
3. 3. Electronic lock (1) according to any preceding claim, characterized in that it comprises a first primary permanent magnet (6) and a second primary permanent magnet (7) and a first secondary permanent magnet (8) and a second secondary permanent magnet (9).
4. 4. Electronic lock (1) according to the preceding claim, characterized in that said means for magnetic coupling corresponding to the end-of-travel position at the closing are in a configuration adapted to keep said rotatable element (5) in a stable equilibrium position and to keep said latch element (4) in said unlatched position.
5. 5. Electronic lock (1) according to any one of claims 3 and 4, characterized in that said means for magnetic coupling corresponding to the end-of-travel position at the opening are in a configuration adapted to hold said rotatable element (5) in a stable equilibrium position and actuate said latch element (4) towards said latch position.
6. 6. Electronic lock according to any preceding claim, characterized in that the latching element (4) is slidable orthogonally to the rotation axis of the rotor (2).
7. 7. An electronic lock (1) according to any one of claims 3-6, characterized in that the means for magnetic coupling are adapted to reverse the direction of the magnetic torque generated on the rotatable element (5) from the direction of the magnetic torque opposite to the opening to the direction of the magnetic torque assisting the opening when the limit angular position is reached during rotation of the rotatable element (5) from the end-of-travel position at the closing to the end-of-travel position at the opening.
8. 8. An electronic lock (1) according to any preceding claim, characterized in that it comprises a key (11) insertable into a slot (12) of the rotor (2) to actuate the actuation cam (3) when the latch element (4) is in the latched position, and means for accumulating energy from a key extraction movement (11) from the slot (12) to assist a subsequent rotary actuation of the rotatable element (5).
9. 9. Electronic lock (1) according to the preceding claim, characterized in that the energy recovery means comprise a slidable lever (22) in the rotor (2), said lever having means for releasable engagement with the key (11), said lever (22) having a pin (13) for transmitting movement to an inclined plane (14) for absorbing movement fixed to the rotatable element (5).
10. 10. Electronic lock (1) according to any preceding claim, characterized in that it has means (25, 26) for mechanically locking the rotatable element (5) in the end-of-travel position at the closing.
11. 11. Electronic lock (1) according to the preceding claim, characterized in that said mechanical locking means of said rotatable element (5) in the end-of-travel position at said closing comprise a shoulder (15) of said inclined plane (14) intercepted by said pin (13) in correspondence with the release position of said lever (22) from said key (11).
12. 12. Electronic lock (1) according to the preceding claim, characterized in that it has means (25, 26) for mechanically blocking the unlocking of the latch element (4) in the end-of-travel position at the closing.

Description

Electronic lock core lock Description The invention relates to an electronic lock cylinder lock comprising a rotor, a cam for operating an opening mechanism of the lock and a latch element located between the rotor and an actuation cam. In many known devices, the energy required for the latch is typically provided by a battery housed in the key. Current research is naturally focused on designing systems that minimize the energy required for the latch in order to extend battery life. In addition, some of these devices are constructed in a manner that makes them more susceptible to accidental opening or tampering. The technical task of the present invention is therefore to create an electronic lock cylinder lock that obviates the technical drawbacks of the known art. Within the scope of this technical task, one object of the present invention is to create an electronic lock cylinder lock that requires a reduced amount of energy to couple the rotor with the actuation cam. It is another object of the present invention to create an electronic lock cylinder lock that is capable of recovering a portion of the energy required for latching from normal operation of the lock. It is a further object of the present invention to create an electronic lock cylinder lock that achieves a stable operating configuration. Technical task and these and other objects according to the present invention are achieved by creating an electronic lock cylinder lock comprising a rotor, an actuation cam for operating an opening mechanism of the lock, a latch element slidably supported in the rotor between a latched position and an unlatched position between the rotor and the actuation cam, characterized in that an actuator for moving the latch element is housed within the rotor, the actuator comprising an electric motor, a rotatable element capable of being driven in rotation by the electric motor, and means for magnetic coupling between the rotatable element and the sliding latch element, wherein the means for magnetic coupling comprises at least one primary permanent magnet fixed to the rotatable element and at least one secondary permanent magnet attached to the slidable latch element. In a preferred embodiment of the invention, the rotatable element performs a reversible stroke between a closed end-of-stroke position, in which the rotation of the actuation cam is decoupled from the rotation of the rotor, and an open end-of-stroke position, in which the rotation of the actuation cam is coupled to the rotation of the rotor. In a preferred embodiment of the present invention, a first primary permanent magnet and a second primary permanent magnet, and a first secondary permanent magnet and a second secondary permanent magnet are provided. In a preferred embodiment of the invention, the means for magnetically coupling are in a configuration adapted to hold the rotatable element in a stable equilibrium position and to operate the latch element in the unlatched position, corresponding to the end-of-travel position at closure. In a preferred embodiment of the invention, the means for magnetically coupling are configured to hold the rotatable element in a stable equilibrium position and to actuate the latching element towards the latching position, corresponding to the end-of-travel position at opening. In a preferred embodiment of the invention, the magnetic coupling means are adapted to reverse the direction of action of the magnetic torque generated on the rotatable element from the direction of magnetic torque opposite to the opening to the direction of magnetic torque assisting the opening when the limit angular position is reached during rotation of the rotatable element from the end-of-travel position at closing to the end-of-travel position at opening. Further features of the invention are mentioned in the following dependent claims. Further features and advantages of the invention will become more apparent from the description of a preferred, but not exclusive, embodiment of an electronic lock cylinder lock according to the invention, provided by way of example and not limitation in the accompanying drawings, in which: FIG. 1 shows an isometric view of a lock with a key actuated from the outside and a knob actuated from the inside; FIG. 2 shows the lock of FIG. 1 partially exploded; FIG. 3 shows some exploded parts of the lock of FIG. 1; FIG. 4 shows the latching element of the lock of FIG. 1 with the magnet removed; FIG. 5 shows the rotatable element of the lock of FIG. 1 with the magnet removed; Fig. 6A, 6B, 6C, 6D, 6E show rear views of the rotor with components mounted in various operational positions; FIG. 7 shows a side elevation view of the vertical section of the lock when the key is not fully inserted; FIG. 8 shows a side elevation view of the vertical section of the lock with the key fully inserted; Fig. 9 shows an exploded detail of the energy recovery system and the closed position locking mechanism. Referring to the mentio