Electronic lock cylinder

Abstract

The present invention relates to an electronic lock cylinder actuatable by an electronic key (9), wherein the electronic lock cylinder comprises a stator body (2), a rotor (1), a motor (14) actuatable by the electronic key (9), a clutch mechanism for locking and unlocking the rotation of the rotor (1) relative to the stator body (2) by means of actuation of the motor (14), and a system for detecting the rotation of the rotor (1) relative to the stator body (2), which system is configured to deactivate the motor (14) when the rotor (1) rotates relative to the stator body (2). In a preferred embodiment, the clutch mechanism comprises two locking balls (3), which are elements that move radially inside the lock cylinder to lock and unlock the rotation of the rotor (1) relative to the stator body (2).

Description

Technical Field

[0001] This invention includes an electronic lock cylinder that can be unlocked and opened using an electronic key. The lock cylinder includes: a clutch mechanism that can be electronically actuated for the purpose of locking the rotor of the lock cylinder, thereby enabling a secure and robust lock to be provided using electronic locking devices against potential attacks on doors or passageways; and a system for detecting the rotation of the rotor relative to the stator body, which allows the motor to be deactivated while the rotor is rotating relative to the stator body for optimal energy management.

[0002] This invention belongs to the field of locksmithing, and more specifically to the field of electronic lock cylinders or electromechanical lock cylinders for access control systems. Background Technology

[0003] In today's access control systems, the use of electronic lock cylinders is becoming increasingly common due to their versatility, security, and configuration capabilities compared to purely mechanical lock cylinders. Configurations such as restricting access based on user needs or preferences allow for opening at specific times and the acquisition of information related to opening attempts or attempts made.

[0004] In the market for electronic lock cylinders, there are electronic lock cylinders that have internal charge storage devices such as batteries and control systems that allow the lock cylinder to be used independently without the need for external wired connections.

[0005] In addition to these systems, lock cylinders can also be found on the market that do not integrate batteries or control systems internally, or have fixed wired connections. Instead, they are powered and controlled by a management system located in the key. In other words, due to their characteristics, lock cylinders are intended to be installed in passageways where electrical connections are difficult, or in passageways subject to temperature or weather changes that could affect the operation and replacement of the fixed battery.

[0006] In this way, the present invention focuses on these latter types of electronic lock cylinders.

[0007] This type of lock cylinder without batteries is specifically used in facilities that require them to be robust due to their location or the weather they will be exposed to, and which include as few electronic components as possible and require less maintenance.

[0008] Some examples of using this type of lock cylinder are for controlling access to: substations located in isolated locations; outdoor areas that may contain materials, large warehouses, or in short, high-value instruments or machinery.

[0009] In this type of facility, due to the electronic lock cylinder, access permissions can be managed by configuring access keys with codes via electronic devices, thus controlling who can and cannot enter the facility. Similarly, these permissions can be temporary, meaning they can only be used for a specific period of time, and furthermore, they allow for control of entry and exit by a management system. For these lock cylinders, only a key incorporating the control system and a battery to power the cylinder are required to perform unlocking or opening operations.

[0010] However, these lock cylinders present a two-fold problem. On the one hand, the security of the lock cylinder must be guaranteed to ensure its proper operation, meaning that the lock cylinder will not malfunction when opening and closing, and it must also provide tamper resistance.

[0011] On the other hand, the wear and tear on the lock cylinder motor must be as low as possible to be effective for the user, so as to prevent the user from having to charge or replace the key battery every short period of time. Summary of the Invention

[0012] The present invention includes an electronic lock cylinder capable of being driven by an electronic key, the electronic key being insertable into the electronic lock cylinder, wherein the electronic lock cylinder includes: a stator body; a rotor configured to rotate relative to the stator body; a motor capable of being driven by the electronic key, i.e., actuated by the electronic key; a clutch mechanism for locking and unlocking the rotation of the rotor relative to the stator body by actuation of the motor; and a system for detecting the rotation of the rotor relative to the stator body, the system being configured to deactivate the motor when the rotor rotates relative to the stator body.

[0013] This system for detecting the rotation of the rotor relative to the stator body can be configured to shut down the motor while the rotor is rotating, thereby reducing energy consumption.

[0014] A system for detecting the rotation of a rotor may include:

[0015] - Position detection magnet, which is positioned within the stator body;

[0016] - A field emitter, which is positioned within the rotor; and

[0017] - A magnetic sensor, which is located in the rotor and configured to detect a magnetic field emitted by a position detection magnet and guided to the magnetic sensor by means of a field emitter;

[0018] The magnetic sensor is electrically connected to the motor, preferably to an electronic circuit that controls the activation and deactivation of the motor. The magnetic sensor can be connected via an electronic control device for the lock cylinder. The motor is configured to be deactivated when the magnetic sensor detects a change in the position of the position detection magnet relative to the magnetic sensor.

[0019] Compared to existing electronic lock cylinders on the market, systems that detect rotor rotation offer significant advantages. In some lock cylinders of this type, the battery continuously supplies power to the motor until the key is removed, resulting in very high energy consumption. However, with a rotation detection system, the power supply is cut off when rotation of the rotor relative to the stator is detected, thereby optimizing energy consumption.

[0020] The lock cylinder can be configured such that when the rotor rotates relative to the stator body, causing a specific change in the magnetic field detected by the sensor, the motor circuit stops supplying power to the motor. This change in the magnetic field is due to the fact that as the rotor rotates, the magnet is no longer aligned with the field emitter and the magnetic sensor, thus altering the transmission of the field received by the magnetic sensor.

[0021] Preferably, the magnetic sensor, field emitter, and position detection magnet are initially aligned (with a 0° angle between them), and when the rotor rotates relative to the stator body to open the electronic lock cylinder for access, the magnetic sensor, field emitter, and position detection magnet become misaligned, i.e., tilted at an angle relative to the vertical. In this case, the magnetic sensor detects this displacement or rotation, thereby cutting off the power supply to the motor, thus improving the energy efficiency of the lock cylinder.

[0022] An electronic key can be a peripheral device that includes a control mechanism with opening logic, allowing it to be electrically connected to a lock cylinder to unlock the lock cylinder.

[0023] In one embodiment, the clutch mechanism further includes at least one locking ball and a rocker arm connected to a motor, the rocker arm being configured to rotate about itself between a locked position and an unlocked position when the motor can be driven, wherein the rocker arm includes at least one radial opening.

[0024] The rocker arm is understood as a part in the form of a disc, rod, or bar, which is movable because it can rotate about an axis—in this case, the axis defined by the electronic lock cylinder—and is used to release or lock the rotation of the rotor relative to the stator body.

[0025] In this embodiment, the rotor is configured to rotate relative to the stator body and includes a rotor supplement comprising: a first section including an inner opening into which a rocker arm is inserted with a gap; wherein the first section is concentrically inserted from the outside into the inner cavity of the stator body of the electronic lock core with a gap; and at least one radial through hole, preferably also located in the first section of the rotor supplement, wherein at least one locking ball is inserted with a gap in the radial through hole.

[0026] The fact that the rocker arm is inserted into the inner opening of the rotor supplement with a gap means that the rocker arm can rotate concentrically relative to the rotor supplement while remaining within the inner opening of the rotor supplement, without transmitting rotation to the rotor supplement. Similarly, the fact that the first section of the rotor supplement is inserted into the inner cavity of the stator body with a gap means that the rotor supplement can rotate relative to the stator body while maintaining concentricity.

[0027] The radial through-hole containing the locking ball can be a through-hole oriented in the radial direction of the rotor supplement, with a diameter large enough to accommodate the locking ball, thereby allowing the locking ball to move radially throughout the entire interior of the radial through-hole due to its clearance.

[0028] In this embodiment, the inner cavity of the stator body, in which the first section of the rotor supplement is positioned, includes a recess. When the rotor supplement is in the closed position of the electronic lock cylinder, a portion of the locking ball is positioned in the recess. The recess may include a straight plane or a curved plane, thereby facilitating locking of the rotor supplement relative to the stator body and allowing the locking ball to slide through the recess.

[0029] In one embodiment, the rocker arm is in a locked position when the radial opening is not radially aligned with the radial through-hole of the rotor supplement, and in an unlocked position when the radial opening is radially aligned with the radial through-hole of the rotor supplement.

[0030] Therefore, in one embodiment, the locking ball is configured to be removed from a recess in the stator body and inserted into a radial opening in the rocker arm when the rotor rotates relative to the stator body with the rocker arm in the unlocked position, and remains inside the radial through-hole of the rotor supplement. Preferably, the rotation is caused by the rotation of a key inserted in the electronic lock cylinder.

[0031] Furthermore, with the rocker arm in the locked position, since the locking ball cannot be inserted into the radial opening of the rocker arm, it is partially inserted into a recess in the stator body and configured to lock the rotation of the rotor relative to the stator body. Given that the diameter of the ball is larger than the radial space of the hole in the rotor supplement for the locking ball to be inserted, a portion of the ball must remain outside the hole—either inside or outside, i.e., either in the recess of the stator body or in the radial opening of the rocker arm. In other words, if the rocker arm, due to its orientation, does not allow the ball to be inserted into the radial opening, the ball will prevent the rotor from rotating and thus prevent the lock from opening.

[0032] In this way, if the electronic key does not have an authorization code when it is inserted into the electronic lock cylinder, the electronic lock cylinder will not activate the motor, and therefore the rocker arm will not rotate, thus keeping the rotor locked. If the key has an authorization code, the motor will rotate the rocker arm, which will be in the unlocked position to allow the rotor to rotate relative to the stator body.

[0033] In one embodiment, in addition to the rotor supplement, the rotor also includes a rotor head, which includes a motor and a clutch mechanism, wherein the rotor head is connected to the rotor supplement. That is, they share the same integral rotation. In this way, with the rocker arm in the unlocked position, the rotation of the rotor relative to the stator body for opening the electronic lock cylinder represents not only the rotation of the rotor supplement, but also the integral rotation of the motor and clutch mechanism components relative to the stator body. This means that it is not a part of the clutch mechanism or motor that rotates, but rather the entire assembly that rotates.

[0034] In one embodiment, the rotor supplement includes a second section connected to a cam, wherein the cam is configured to rotate integrally with the rotation of the rotor supplement relative to the stator body. That is, the cam rotates as the rotor rotates relative to the stator body.

[0035] In one embodiment, when the electronic key is inserted into the electronic lock cylinder, the rotation of the rotor relative to the stator body is integrated with the rotation of the electronic key relative to the stator body.

[0036] In this embodiment, with the rocker arm in the unlocked position, rotating the key causes the rotor to rotate, and the locking ball can move radially and enter the radial opening of the rocker arm, thus allowing the rotor supplement to continue rotating, thereby moving the cam and unlocking the lock. In other words, in this embodiment, the rotational movement of the rotor is caused by the user carrying the key and rotating it.

[0037] In one implementation, when the key is inserted into or connected to the electronic lock cylinder, the motor can be driven or actuated by the electronic key, which is an authorized key for opening. That is, the motor requires the insertion or connection of an authorized key into the lock cylinder to perform the actuation, directing the electrical consumption of the lock cylinder into the rotation of the motor, thereby causing the rocker arm to rotate.

[0038] In one embodiment, the clutch mechanism includes: an actuator disc connected to a motor and a rocker arm, configured to transmit rotation of the motor shaft to the rocker arm when the motor is driven or actuated, i.e., to transmit torque from the motor to the rocker arm; and a return spring, preferably a torsion spring mounted on the actuator disc, configured to rotate the actuator disc in a direction opposite to the rotation of the motor and to rotate the rocker arm from an unlocked position to a locked position. In other words, in this embodiment, when the motor is activated, the rocker arm can be rotated from the locked position to the unlocked position by means of the actuator disc by rotating the motor shaft, but when a load is applied to the same actuator disc, the spring performs rotation in the opposite direction.

[0039] The connection between the motor shaft and the actuator disc is robust, meaning the actuator disc rotates about itself when the motor is actuated. The connection between the actuator disc and the rocker arm is preferably a tenon-and-groove connection, and the actuator disc includes a protrusion that can be assembled into a groove on the rocker arm. Since the actuator disc and return spring are included in the clutch mechanism, and the clutch mechanism is located in the head of the rotor, both the actuator disc and the return spring rotate integrally with the stationary stator body, motor body, rotor assembly, and rocker arm when the lock cylinder is opened.

[0040] The rocker arm's return to its original position is caused by the rotational energy accumulated in the return spring when the actuator disc is rotated by the motor. For this reason, once the rotor is rotated by turning the key as indicated in one of the aforementioned embodiments, the motor is disconnected, and the rocker arm can be restored to its locked state by rotating in the opposite direction due to the action of the spring. In this way, the locking ball protrudes radially toward the recess of the stator body before the rocker arm is placed in its initial locked position. That is, in this embodiment, the rocker arm's return movement is performed by the spring, not the motor, thus reducing the electrical consumption of the lock cylinder.

[0041] In one embodiment, the clutch mechanism includes two locking balls, each inserted into one of two radial through holes in the rotor supplement, wherein the rocker arm includes two radial openings, each locking ball corresponding to one radial opening; and wherein the inner cavity of the stator body, in which the first section of the rotor supplement is positioned, includes two recesses, wherein a portion of one of the locking balls is tightly positioned in a corresponding recess of the two recesses.

[0042] In this embodiment, the locking force of the rotor relative to the stator is greater, and therefore the lock cylinder is more secure and less susceptible to unintended tampering. Preferably, the locking balls are aligned diametrically, that is, the locking balls face each other relative to the axis defining the rocker arm.

[0043] In one embodiment, the electronic lock cylinder includes at least one reset magnet attached to the stator body, the reset magnet being configured to attract a locking spherical member made of magnetic material to a recess in the cavity of the stator body. In other embodiments, gravity may be used instead of a magnet as a means of positioning the spherical member in the recess to lock the rotor relative to the stator.

[0044] In one embodiment, the electronic lock cylinder includes an electronic control device connected to a motor and capable of connecting to an electronic key when the key is inserted into or attached to the electronic lock cylinder. The electronic control device verifies whether the inserted key is authorized, controls the activation of the motor, and also controls the use of the lock cylinder.

[0045] In one embodiment, the electronic lock cylinder includes a pin locking, key insertion, and key removal mechanism, wherein the mechanism includes at least:

[0046] - Upper pin, which is connected to the stator body of the lock by means of a compression spring, wherein the compression spring and the upper pin are received in a hole in the stator body;

[0047] - A lower pin rests on an upper pin in a position for inserting and removing a key; wherein, when the key is inserted into or removed from the electronic lock cylinder, the lower pin is movable along the direction of the hole in the stator body where the upper pin is located.

[0048] This locking mechanism allows a key to be inserted into and removed from the lock cylinder at a specific position; the pin system is common in mechanical locks.

[0049] Similarly, systems for detecting rotor rotation are suitable for electronic locks where the rotor needs to rotate more than 360° relative to the stator body to open the lock; these are known as multi-turn locks. A disadvantage of this type of lock is that the rotor must be unlocked every time it completes one full rotation, requiring the electronic lock cylinder key to be removed and reinserted.

[0050] However, in the case of multi-turn locks, using a system for detecting the rotation of the rotor, the magnetic sensor can be configured to: when it detects that the rotor has rotated 360° and is close to passing the 0° position again (that is, rotating a full circle relative to the stator body), reactivate the motor to move it from the locked position to the unlocked position, and thus make the operation more comfortable for the user because there is no need to remove the key again.

[0051] Specifically, in this embodiment, the motor can be configured to be deactivated when the magnetic sensor detects a decrease in the magnetic field emitted by the position detection magnet; and the motor can be configured to be activated when the magnetic sensor detects an increase in the magnetic field emitted by the position detection magnet.

[0052] In addition to the electronic lock cylinder, the present invention also includes an electronic lock comprising an electronic key and an electronic lock cylinder, such as the electronic lock cylinder described and defined in any of the foregoing embodiments, wherein the electronic key includes a battery that provides power to the motor of the electronic lock cylinder.

[0053] In this implementation, the key's battery only supplies the motor of the lock cylinder with the electrical energy required to move the rocker arm to its unlocked position. If, after a predetermined time, the rotor does not rotate—that is, if the key has been inserted and a signal has been sent to the motor to rotate the rocker arm, but the rotor has not been rotated relative to the stator body, for example, by turning the key—the lock cylinder can be configured to disconnect from the energy supply and return the rocker arm to its locked position. This optimizes energy use and prevents inappropriate and / or malicious use.

[0054] In one embodiment of the electronic lock, the electronic lock cylinder includes an electrical connector configured to connect to an electrical connector of an electronic key.

[0055] With this implementation, when the key is inserted into the lock cylinder, both connector elements are in communication and verify whether the key code is authorized to open the lock. If the code is authorized, the lock cylinder's electronics send a command to the motor to start the motor moving, thereby moving the rocker arm, i.e., rotating the rocker arm, until the rocker arm is in its unlocked position. Attached Figure Description

[0056] To aid in a better understanding of the developed system and in conjunction with its actual and preferred exemplary implementations, a series of figures are provided, in which the following are illustrated:

[0057] - Figure 1A A perspective view of an electronic lock cylinder inserted with an electronic key is shown.

[0058] - Figure 1B It shows Figure 1A The same perspective view of the electronic lock cylinder inserted by the electronic key is cut in half along the longitudinal plane to allow observation of the components located inside the stator body.

[0059] Figure 2A shows a front view of the electronic lock cylinder with an electronic key inserted.

[0060] Figure 2B shows a cross-sectional view of an electronic lock cylinder inserted with an electronic key; the view is used to illustrate... Figure 2C and Figure 2E The cross-sectional planes (AA and BB) depicted in the figure.

[0061] - Figure 2C A front view cut along the longitudinal plane indicated by reference numeral AA in Figure 2B is shown, in which the depiction of the key is shown interrupted on the left, and in which the components inside the electronic lock cylinder can be seen.

[0062] - Figure 2D It shows Figure 2C The detailed view depicted by reference numeral "C" shows, in which the assembly of the rocker arm, actuator disk, motor, rotor supplement and return spring can be seen in an enlarged manner.

[0063] - Figure 2E The diagram shows a plan view of the electronic lock cylinder interrupted in the lower portion by being cut through the transverse plane BB indicated in Figure 2B.

[0064] - Figure 2F It shows Figure 2E The detailed view depicted by the reference numeral "D" shows the assembly of the spherical component, magnet, rocker arm, actuator disk, return spring, motor, and rotor supplement from a planar angle and in a magnified manner.

[0065] - Figure 3 An exploded perspective view of the rotor is shown, in which the rotor head, rotor supplement, and locking ball can be seen, including the actuator disk and rocker arm.

[0066] - Figure 4A perspective view of an electronic lock cylinder is shown, in which components formed by a rotor supplement, rocker arm, cam, spherical component and magnet are assembled into a mounted assembly to move relative to the stator body.

[0067] - Figure 5 A front view of an electronic lock cylinder in which an electronic key is inserted is shown, the key depicted in an interrupted form. The view shows the cross-sectional planes identified by the reference numeral EE as depicted in Figures 6A to 6D.

[0068] Figures 6A to 6D show the different positions of the rocker arm and rotor supplement relative to the stator body.

[0069] Therefore, Figure 6A shows the rocker arm in the locked state, wherein the radial opening of the rocker arm is not aligned with the radial through hole of the rotor supplement, and the cam is in the closed position.

[0070] Figure 6B shows the rocker arm in the unlocked state, where the radial opening is aligned with the radial through hole of the rotor supplement, and the cam is similarly in a horizontal position with the hole of the rotor supplement.

[0071] Figure 6C shows the rocker arm in the unlocked state, wherein the radial opening is aligned with the radial through hole of the rotor supplement, wherein the rotor supplement is slightly tilted relative to the stator body, and since the cam and the rotor share the same rotation, the cam is in a position tilted at the same angle as the rotor's rotation relative to the stator body based on Figure 6B.

[0072] Figure 6D shows the rocker arm in the unlocked state, where, compared to Figure 6C, the rotor supplement is more tilted relative to the stator body, and the cam is in a more tilted position, at the same angle as the rotor rotating relative to the stator body.

[0073] - Figure 7A A front view of an electronic lock cylinder in which an electronic key is inserted is shown, the key depicted in an interrupted manner. The view depicts a cross-sectional plane identified by the reference numeral FF.

[0074] - Figure 7B It shows the result of Figure 7A The figure shows a cross-sectional view taken through a lateral section plane, indicated by the reference numeral FF.

[0075] - Figure 7C It shows Figure 7B The figure shows details of a system for detecting the rotation of a rotor, indicated by reference numeral "G", in which the magnet, transmitter, and magnetic sensor are aligned.

[0076] - Figure 7D It also shows Figure 7BThe figure shows details of a system for detecting the rotation of a rotor, indicated by reference numeral "G", in which the magnet and the magnetic sensor are misaligned.

[0077] The following is a list of the reference numerals used in the figures:

[0078] (1) Rotor

[0079] (2) Stator body

[0080] (2.1) Recessed part

[0081] (3) Locking spherical component

[0082] (4) Reset magnet

[0083] (5) Rocker arm

[0084] (5.1) Radial opening

[0085] (6) Position detection magnet

[0086] (7) Field emitter

[0087] (8) Magnetic sensor

[0088] (9) Electronic key

[0089] (10) Compression spring

[0090] (11) Rotor head

[0091] (12) Actuator disk

[0092] (13) Return spring

[0093] (14) Motor

[0094] (15) Rotor supplement

[0095] (15.1) Hole

[0096] (16) Cam

[0097] (17) Upper pin

[0098] (18) Lower pin Detailed Implementation

[0099] As can be seen in the diagram, especially... Figure 1A and Figure 1B As can be seen in the present invention, the invention includes an electronic lock cylinder that can be actuated and inserted by an electronic key (9).

[0100] In the aforementioned Figures 1A to 1BIn the middle, you can see that the electronic key (9) is inserted into one of the front sides of the electronic lock cylinder, which is usually visible when the lock cylinder is installed on a door or passage.

[0101] The electronic lock cylinder shown in the figure has the appearance of a common lock cylinder on the market—whether it is a mechanical lock cylinder or an electronic lock cylinder—but this electronic lock cylinder only has an opening that can be inserted by an electronic key (9) to open the electronic lock cylinder.

[0102] The operation of the electronic lock cylinder includes: when the lock cylinder is closed when the cam (16) rotates relative to the stator body (2), that is, when the lock where the lock cylinder is located is closed, inserting the electronic key (9) into one end of the lock cylinder to open the lock cylinder, wherein the stator body (2) serves as a stop or a housing or pin connected to a hole or stop embedded in the frame of the door.

[0103] The electronic lock cylinder includes a rotor (1), which in turn includes a rotor head (11) and a rotor supplement (15). A motor (14), an actuator disc (12), a rocker arm (5), two locking balls (3), and a return spring (13) are mounted in the rotor head (11).

[0104] By inserting the electronic key (9) into the electronic lock cylinder, the connector of the key (9) is connected to the electronic connector of the lock cylinder, which sends a signal to the electronic control device of the lock cylinder connected to the motor (14) to actuate the motor (14). The electrical energy required to actuate the motor (14) comes from the electronic key (9), which includes a battery that stores the electrical energy required to rotate the motor (14).

[0105] When the motor (14) is activated, the motor (14) causes the actuator disk (12) connected to the motor (14) via the shaft of the motor (14) to rotate about itself. The actuator disk (12) transmits the rotation, i.e. the torque, provided by the motor (14) to the rocker arm (5), which is initially in the locked position as shown in FIG. 6A, so that the rocker arm (5) rotates to the unlocked position as shown in FIG. 6B.

[0106] Once the rocker arm (5) has been rotated to the unlock position, the user can rotate the electronic key (9) inserted in the electronic lock cylinder so that the rotor (1) rotates completely relative to the stator body (2) with the electronic key (9) to open the lock as shown in Figures 6C and 6D, wherein the rotor (1) is attached to the cam (16) of the lock cylinder by means of the rotor supplement (15).

[0107] The locking and unlocking of the rocker arm (5) is determined by the clutch mechanism of the lock cylinder. In addition to the rocker arm (5), the mechanism includes, from the inside out and concentrically, two locking spherical members (3) inserted into two radially facing holes in the rotor supplement (15); the rotor supplement (15); two reset magnets (4) fixedly positioned and attached to the stator body (2); and the stator body (2) of the lock cylinder itself. That is, the arrangement is the same as that shown in Figures 6A to 6D, wherein the rocker arm (5) is positioned in the inner opening of the rotor supplement (15) with a gap between the rocker arm (5) and the rotor supplement (15), which allows independent rotation between the rocker arm (5) and the rotor supplement (15), and the rotor supplement (15) is also positioned in a cavity inside the stator body (2) with a gap.

[0108] The operation of the mechanism will be described in the order of Figures 6A to 6D. In this way, in Figure 6A, the rocker arm (5) is in a locked position because the two radial openings (5.1) included in the rocker arm (5) are not aligned with the two holes (15.1) of the rotor supplement (15). The two radial openings (5.1) are located on the periphery of the rocker arm (5), and the locking ball (3) is positioned in the two holes (15.1) of the rotor supplement 15.

[0109] Once the rocker arm (5) has traveled from the locked position to the unlocked position, that is, once the rocker arm (5) has rotated about itself and traveled from the position shown in FIG. 6A to the position shown in FIG. 6B, the electronic key (9) inserted in the lock cylinder can be rotated so that the rotor (1) rotates with the electronic key (9). The locking ball (3) is inserted into the hole (15.1) of the rotor supplement (15) when the lock is in the closed position and is partially inserted into the recess (2.1) due to the attraction exerted by the reset magnet (4) adjacent to the recess (2.1) of the stator body (2). When the rotor (1) rotates, the locking ball (3) can also be partially inserted into the radial opening (5.1) of the rocker arm (5) as shown in FIG. 6C and removed from the recess (2.1) due to the influence of its geometry, thereby allowing the rocker arm (5) and the rotor supplement (15) to rotate together relative to the stator body (2).

[0110] If the rocker arm (5) has not been rotated by the actuation of the motor (14), the locking ball (3) cannot be inserted into the radial opening (5.1), so the locking ball (3) will act as a stop between the stator body (2) and the rotor supplement (15), thereby preventing the rotor (1) from rotating.

[0111] Once the electronic key (9) rotates and the rotor (1) rotates relative to the stator body (2) to rotate the cam (16) and thus open the lock, the electronic key (9) can be removed from the lock cylinder in the same position where the electronic key (9) was inserted, i.e., in a horizontal or vertical position, as is the case with most locks, due to the pin mechanism included in the lock, thus leaving the rotor supplement (15) in the position shown in Figures 6A and 6B.

[0112] In order to rotate the rocker arm (5) to the locked position after the lock cylinder is opened, the clutch mechanism also includes a return spring (13) connected to the actuator disc (12). The return spring (13) accumulates energy due to the rotation of the motor (14) when the motor (14) rotates the rocker arm (5) to the unlocked position, thereby allowing the energy accumulated during the deformation of the spring (13) to be used to rotate the rocker arm (5) in the opposite direction to the locked position as shown in FIG6A.

[0113] The pin mechanism includes an upper pin (17) connected to the stator body (2) of the lock by means of a compression spring (10), and a lower pin (18) resting on the surface of the upper pin (17). When the electronic key (9) is inserted into the electronic lock cylinder, the pins (17, 18) move inward along the direction of the opening where the compression spring (10) is located, and the spacer between the pins (17, 18) is positioned at a precise height that allows the key (9) to rotate relative to the stator body (2). Figure 2C This arrangement is clearly shown, wherein the plane separating the two pins (17, 18) coincides with the plane separating the rotor head (11) from the stator body (2).

[0114] The preferred basic part of the present invention can be... Figures 7B to 7D As seen in the diagram, the lock cylinder also includes a system for detecting the rotation of the rotor (1), the system comprising: a position detection magnet (6) positioned in the stator body (2), i.e., the position detection magnet (6) is stationary relative to the rotation of the rotor (1); a field emitter (7) included in the rotor head (11) and rotating together with the rotor head (11); and a magnetic sensor (8) also positioned in the rotor head (11) and configured to detect the magnetic field of the position detection magnet (6) guided by the field emitter (7).

[0115] This system for detecting rotation allows it to know when the rotor (1) rotates relative to the stator body (2), thus allowing the power supply from the battery of the electronic key (9) to the motor (14) to be cut off when the rocker arm (5) is unlocked, thereby optimizing power consumption.

[0116] In the case of a "multi-turn" type electronic lock cylinder, that is, in the case where the electronic lock cylinder requires the rotor (1) to rotate more than one turn relative to the stator body (2) to open or close the opening device (door), this system for detecting rotation can avoid having to remove and insert the electronic key (9) after each rotation to reset the rocker arm (5) to the unlock position shown in Figure 6B.

[0117] For this purpose, the magnetic sensor (8) can be configured to: detect that the rotor (1) has rotated 360° and is close to passing the 0° position (that is, detect that the rotor (1) has rotated a full circle relative to the stator body (2), and reactivate the motor (14) to move it from the locked position to the unlocked position, and thus make the operation more comfortable for the user, since there is no need to remove the key and insert it again to unlock the rocker arm (5).

[0118] In this embodiment, the motor (14) can be configured to be deactivated when the magnetic sensor (8) detects a decrease in the magnetic field emitted by the position detection magnet (6); and the motor (14) can be configured to be activated when the magnetic sensor (8) detects an increase in the magnetic field emitted by the position detection magnet (6).

[0119] In other words, the return spring (13) and the system for detecting rotation, together with the previously defined arrangement of the clutch mechanism, optimize the electrical consumption of the lock cylinder, thereby maintaining the stability of the lock cylinder.

Claims

1. An electronic lock cylinder capable of being inserted and driven by an electronic key (9), characterized in that, The electronic lock cylinder includes: - Stator body (2); - Motor (14), which can be driven by the electronic key (9); - Rotor (1), the rotor (1) being configured to rotate relative to the stator body (2); - A clutch mechanism for locking and unlocking the rotation of the rotor (1) relative to the stator body (2) by actuating the motor (14); and - A system for detecting the rotation of the rotor (1) relative to the stator body (2), wherein the system is configured to deactivate the motor (14) when the rotor (1) rotates relative to the stator body (2).

2. The electronic lock cylinder according to claim 1, wherein, The system for detecting the rotation of the rotor (1) includes: - Position detection magnet (6), the position detection magnet (6) being positioned in the stator body (2); - Field emitter (7), said field emitter (7) being positioned in said rotor (1); and - A magnetic sensor (8) is positioned in the rotor (1) and is configured to detect a magnetic field emitted by the position detection magnet (6) and guided to the magnetic sensor (8) by means of the field emitter (7); The magnetic sensor (8) is electrically connected to the motor (14); wherein the motor (14) is configured to be deactivated when the magnetic sensor (8) detects a change in the position of the position detection magnet (6) relative to the magnetic sensor (8).

3. The electronic lock cylinder according to claim 2, wherein, The system for detecting the rotation of the rotor (1) is configured to: deactivate the motor (14) when the magnetic sensor (8) detects a decrease in the magnetic field emitted by the position detection magnet (6); and activate the motor (14) when the magnetic sensor (8) detects an increase in the magnetic field emitted by the position detection magnet (6).

4. The electronic lock cylinder according to any one of claims 1 to 3, wherein, The clutch mechanism includes: A rocker arm (5) connected to the motor (14), the rocker arm (5) being configured to rotate between a locked position and an unlocked position, wherein the rocker arm (5) includes at least one radial opening (5.1); and At least one locking spherical component (3); The rotor (1) includes a rotor supplement (15), which includes: The first section includes an inner opening, wherein the rocker arm (5) is inserted into the inner opening with a gap; wherein the first section is concentrically inserted from the outside into the inner cavity of the stator body (2) of the electronic lock cylinder with a gap; and A radial through hole (15.1), in which the locking ball (3) is inserted with a gap; The inner cavity of the stator body (2) includes at least one recess (2.1), the first section of the rotor supplement (15) is positioned in the inner cavity, and when the rotor supplement (15) is in the closed position of the electronic lock core, at least one part of the locking ball (3) is positioned in the recess (2.1).

5. The electronic lock cylinder according to claim 4, wherein, The rocker arm (5) is in the locked position when the radial opening (5.1) is not radially aligned with the radial through hole (15.1) of the rotor supplement (15), and the rocker arm (5) is in the unlocked position when the radial opening (5.1) is radially aligned with the radial through hole (15.1) of the rotor supplement (15).

6. The electronic lock cylinder according to claim 4, wherein, The locking ball (3) is configured to be removed from the recess (2.1) of the stator body (2) and inserted into the radial opening (5.1) of the rocker arm (5) when the rocker arm (5) is in the unlocked position and the rotor (1) rotates relative to the stator body (2). and When the rocker arm (5) is in the locked position, the locking ball (3) is partially inserted into the recess (2.1) of the stator body (2), and the locking ball (3) is configured to lock the rotation of the rotor (1) relative to the stator body (2).

7. The electronic lock cylinder according to claim 4, wherein, The rotor (1) also includes a rotor head (11), in which the motor (14) and the clutch mechanism are located, wherein the rotor head (11) is connected to the rotor supplement (15).

8. The electronic lock cylinder according to claim 4, wherein, The rotor supplement (15) includes a second section attached to a cam (16), wherein the cam (16) is configured to rotate integrally with the rotation of the rotor supplement (15) relative to the stator body (2).

9. The electronic lock cylinder according to claim 4, wherein, The clutch mechanism further includes: - An actuator disk (12) connected to the motor (14) and the rocker arm (5), the actuator disk (12) being configured to transmit rotation of the shaft of the motor (14) to the rocker arm (5) when the motor (14) is actuated; and - A reset spring (13) is mounted on the actuator disk (12) and is configured to rotate the actuator disk (12) in a direction opposite to the rotation of the motor (14) and to rotate the rocker arm (5) from the unlocked position to the locked position.

10. The electronic lock cylinder according to claim 4, wherein, The clutch mechanism includes two locking ball joints (3), each of which is inserted into one of the two radial through holes (15.1) of the rotor supplement (15), wherein the rocker arm (5) includes two radial openings (5.1), each locking ball joint (3) corresponding to one radial opening (5.1); and wherein the inner cavity of the stator body (2) includes two recesses (2.1), the first section of the rotor supplement (15) is positioned in the inner cavity, wherein a portion of one of the two locking ball joints (3) is positioned in a close manner in a corresponding recess of the two recesses (2.1).

11. The electronic lock cylinder according to claim 4, comprising at least one reset magnet (4) attached to the stator body (2), the reset magnet (4) being configured to attract the locking spherical member (3) made of magnetic material to the recess (2.1) of the cavity of the stator body (2).

12. The electronic lock cylinder according to any one of claims 1 to 3, comprising a pin locking, key insertion, and key removal mechanism, wherein, The locking, key insertion, and key removal mechanism includes at least the following: - Upper pin (17), which is connected to the stator body (2) of the electronic lock core by means of a compression spring (10), wherein the compression spring (10) and the upper pin (17) are accommodated in a hole in the stator body (2); - A lower pin (18) rests on the upper pin (17) in a position for inserting and removing the electronic key (9); wherein, when the electronic key (9) is inserted into or removed from the electronic lock cylinder, the lower pin (18) is movable along the direction of the hole in the stator body (2) in which the upper pin (17) is located.

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