Closing system comprising a motorized electric unit and a power and control unit

Abstract

Closing system comprising an electronic locking device, a motorized electrical unit, and a power and control unit defining a pre-assembled block and disposed on the device of closure, and electrically connected to each other, and in which the power and control unit comprises an electronic control unit mounted in a housing of the locking device, such electronic control unit being connected to the motorized electrical unit and programmed to actuate the motorized electrical unit so that the locking device is operable between a locking configuration and a released configuration; a housing made of an electrically insulating material disposed axially inside the housing so as to have a longitudinal cavity closed by the electronic control unit; first electrical conductors carried by the housing and a first pin of the electronic control unit configured to electrically connect poles with the same polarity of batteries to be housed in the housing, the poles being in agreement with a first pole of the battery directly in contact with the first pin; second electrical conductors and a second pin of the electronic control unit configured to electrically connect poles of the batteries opposite to the first pole, in which the second electrical conductors include an electrically conductive ring carried by an end of the housing and disposed in contact with the second pin; and the first and second conductors being configured to connect the batteries in parallel.

Description

[0001] CLOSING SYSTEM COMPRISING A MOTORIZED ELECTRIC UNIT AND A POWER AND CONTROL UNIT

[0002] DESCRIPTION

[0003] TECHNICAL FIELD

[0004] The present invention pertains to the field of onboard closure systems, for example, for doors, windows, gates, etc., particularly an electrically operable closure system. This system includes an onboard motorized electric unit and a power and control unit electrically connected to the motorized electric unit.

[0005] STATE OF THE ART

[0006] In the field of motorized onboard closure systems— such as those for doors, windows, gates, etc .—solutions are widely used that comprise a locking device, such as a cylinder or padlock, equipped with a motorized electric unit, like an electric motor. This motor can be electrically operated to lock and unlock the opening of these elements without requiring mechanical keys. To achieve this, such motorized closure systems typically include an onboard control unit that is wirelessly connected to an electronic device, such as a smartphone. Specifically, this control unit is programmed to receive a command signal from this electronic device, for example, via wireless connection protocols like Bluetooth, and to process the signal to activate the electric motor on the locking device. This motor either locks or unlocks the opening of , for example , a door where the locking device is installed, according to the command received from a user . Furthermore , to power the electric motor and the electronic control unit , such motori zed closure systems typically include onboard batteries within the locking device . The model and capacity of these batteries depend largely on the available housing space within the locking device . However, current commercially available solutions often have battery compartments that are not easily accessible . As a result , when the batteries need replacement to ensure continued functionality of the closure system, it is sometimes necessary to disassemble the entire electronic cylinder to access the battery compartment , rendering the motori zed closure system unusable for a certain period . Additionally, some currently available solutions are designed with a limited battery capacity, resulting in the disadvantage of reduced power capacity and more frequent battery replacement intervals . Therefore , there is a continuous need to develop compact and structurally simple solutions that are easy to assemble and disassemble , while simultaneously providing greater power capacity for the electric components to reduce the maintenance intervals for battery replacement .

[0007] OBJECT AND SUMMARY OF THE INVENTION

[0008] The purpose of this invention is to at least partially meet the needs mentioned above . This is achieved through a motori zed closure system that i s electrically operable , preferably in the form of an electronic cylinder or padlock, as defined in claim 1. According to a preferred embodiment of this invention, a motorized closure system is provided for installation on doors, windows, gates, etc., that can be electrically operated to eliminate the need for mechanical keys to lock or unlock, for example, a door on which it is installed. In particular, the operation of this motorized closure system can be controlled remotely, e.g., via a smartphone using a dedicated app or a wireless connection protocol such as Bluetooth. For example, this motorized closure system may include a locking device, such as an electronic cylinder or electronic padlock, equipped with an onboard motorized electric unit (e.g., an electric motor) that can move, for instance, a mobile pin within the lock where the system is mounted, to lock or unlock the door. In one aspect of this invention, the motorized closure system is designed with a construction that minimizes maintenance while also providing significant protection against weather elements that could impair its functionality over time. To achieve this, the motorized closure system includes a power and control unit that can be detachably mounted on the locking device to connect electrically to the motorized electric unit. For example, when the power and control unit is mounted on the locking device, it operates the motorized electric unit. Specifically, this power and control unit includes an electronic control module that can be mounted within a housing in the locking device. For instance, the housing could be a cavity that is easily accessible, such as by removing a cover on the handle of an electronic cylinder or from a buttonhole on the body of an electronic padlock, allowing the control module to be installed within this cavity . As noted above , this electronic control module can communicate with the motori zed electric unit and is programmed to operate it in such a way that a mechanism with a first and a second movable element can be switched between a locked and an unlocked configuration . For example , activating the electric motor may lock or unlock the opening, e . g . , of a door . In one instance , the first element could be a hook of the padlock, and the second element could be a sliding pin that engages the hook to close the padlock . In a latch lock, the first element might be the latch itsel f , while the second element is attached to the doorframe and blocks the latch to keep the door closed . Additionally, the power and control unit includes a casing that is axially mountable within the housing, featuring a longitudinal cavity facing the electronic control module and with at least one protrusion extending axially toward the housing entry . Speci fically, this casing is used to house multiple batteries in a configuration that maximi zes the available capacity . The batteries are stacked within the casing so that poles with the same polarity are aligned and in contact with each other, such as in a parallel connection .

[0009] Furthermore , to electrically connect the batteries with matching polarities , the power and control unit includes first and second electrical conductors . For example , first metallic inserts are connected together and radially inserted in the casing to electrically connect the poles of like polarity, with contact points aligned to the batteries of the same polarity . Based on this arrangement within the casing, these first and second electrical conductors are electrically connected to the electronic control module , speci fically with the first conductors connected to a first pin and the second conductors to a second pin of the electronic control module . Preferably, to connect the battery pole positioned longitudinally at the bottom of the casing to the electronic control module , an electrical conductor extends radially inside the casing to make contact with this pole . This conductor has shaped ends that extend axially to contact a conductive ring mounted on the exposed end of the casing, which is electrically connected to the electronic control module . It should also be noted that the casing is made of an electrically insulating material , such as a polymeric resin ( e . g . , acetal resin, polyoxymethylene ) molded through inj ection to prevent the battery poles from short-circuiting while they are connected to the corresponding first and second pins of the electronic control module . Furthermore , at the end of the casing near the entry of the housing, a longitudinal protrusion is created . This protrusion serves as a centering point for a cap mounted on the power and control unit . Speci fically, this cap is used to secure the casing within the housing, thereby not only maintaining the electrical connection between the batteries and the electronic control module but also providing protection and insulation for the components within the housing, especially the electrical ones . To achieve this , the cap has at least one axial hole that can engage with the protrusion to create a form- fitting connection between the cap and the casing . This way, when the cap is engaged on the casing with the batteries installed, the casing with the cap can be inserted into the housing . To secure the cap to the housing, the cap has an end that can be axially engaged between the casing and the housing to prevent rotational movement, e.g., by creating a threaded connection.

[0010] DESCRIPTION OF THE DRAWINGS

[0011] The constructional and functional features of the motorized locking system can be better understood from the following detailed description, which refers to the attached figures representing a preferred, non-limiting embodiment, in which:

[0012] - Fig.1-2 show perspective views of preferred embodiments of the motorized locking system according to the present invention;

[0013] - Fig.3 shows an exploded view of the power and control unit within the motorized locking system;

[0014] - Fig.4-4a respectively show a sectional view of a first embodiment of the present invention featuring the power and control unit and an exploded view of an electric motor unit within one of the motorized locking systems in Fig.1-2;

[0015] Fig.4b-4d display detailed views of the cam of the preferred embodiment in Fig.4;

[0016] - Fig.5-10 illustrate views of an additional embodiment of the present invention with the power and control unit;

[0017] - Fig.11 shows an exploded view of another implementation variant of the present invention;

[0018] - Fig.12 shows a sectional view of the variant in Fig.11;

[0019] - Fig.13 provides an exploded perspective view of certain components in the variant of Fig.11; Fig.14a and 14b show sectional detail views of the retracted and extended positions of the shuttle;

[0020] - Fig.15 presents another sectional view of the variant in Fig.11.

[0021] DETAILED DESCRIPTION OF THE INVENTION

[0022] In a preferred embodiment of the present invention, Fig.1-2 show a perspective view of a motorized locking system (S, T) comprising a motorized electric unit (Ul) (illustrated, for example, in an exploded detail view in Fig.4a) configured to activate the locking system into a locked or released state, and a power and control unit (U2) (Figs.3 and 4) electrically connected to the motorized electric unit and mountable in a detachable manner within the motorized locking system. Specifically, this motorized locking system is designed to lock and unlock openings such as doors, windows, or gates where it is installed, without requiring mechanical keys to operate. For example, the motorized locking system could be an electronic cylinder (S) or an electronic padlock (T) . In one aspect of the present invention, Fig.3 provides an exploded view of the power and control unit (U2) with the respective components of the electronic padlock (T) . Specifically, this power and control unit (U2) includes a housing (A) , preferably cylindrical in shape, with a longitudinal compartment (A3) inside. Additionally, the power and control unit (U2) includes an electronic control board (B) , such as a printed circuit board (PCB) , attached to a bottom surface (A2) of the compartment (A3) . To electrically power this control board, the power and control unit (U2) contains multiple batteries (C) , preferably button-cell type, and a second housing (D) with a compartment (DI) configured to house the multiple batteries. The second housing (D) is axially mounted within the first housing (A) so that compartment (DI) faces the control board (B) . This configuration allows the batteries (C) to be placed within compartment (DI) in such a way that each battery contacts the next, creating a stacking arrangement from the bottom toward the end of the compartment, i.e., toward the control board .

[0023] Preferably, there are three batteries arranged in compartment (DI) in a parallel connection configuration to enhance the power capacity of the power and control unit (U2) . However, variations with fewer or more than three batteries are also possible. In particular, to establish the parallel connection among the three batteries, they are arranged in compartment (DI) of the second housing (D) with like-polarity terminals facing and contacting each other.

[0024] To power the control board (B) , it includes a first pin (Bl) that is electrically connected to the like-polarity terminals of the batteries, for instance, the positive terminals. The electrical connections described below are configured to connect the button cells in parallel, stacked with like-polarity terminals in contact, two by two. In Fig.3, the batteries are positioned so that the battery closest to the control board (B) makes contact with the first pin (Bl) with its positive terminal. To connect all positive terminals of the batteries situated behind the battery in electrical contact with the first pin (Bl) , the second housing (D) includes first radial holes (D2) on a portion of its perimeter surface facing the inner surface of compartment (A3) of the first housing (A) . These holes (D2) are made to access the compartment (DI) of the second housing, aligning with the batteries' positive terminals.

[0025] These radial holes (D2) allow for the insertion of first electrically conductive elements (D3) , such as spring-loaded metal pins, which can be radially mobile with one end connected to the battery' s positive terminal via contact with its lateral surface. The other longitudinally opposite end extends radially out of the respective first hole (D2) , and the conductive elements are interconnected by a conductor (N) to supply electrical power to the battery in contact with the first pin (Bl) on the control board. These electrically conductive elements (D3) are spaced longitudinally to connect the lateral surfaces, i.e., the terminals of one sign of two batteries in contact at opposite-sign terminals, e.g., connecting the lateral surface of the battery in contact with the first pin (Bl) with the adjacent battery surface, while those batteries contact each other at negative terminals. To connect to the control board's terminals of opposite polarity to those connected to the first pin (Bl) , e.g., the negative terminals, the second housing (D) includes at least one second radial and through-hole (D4) on a portion of the perimeter surface, ideally near the location of the first holes (D2) , to access compartment (DI) of the second housing. Additionally, this second hole D4 is positioned to face at least a portion of the terminals of the batteries with the opposite polarity to that of the battery in contact with pin Bl of the electronic control board, e . g . , the negative terminals . Consequently, within this second hole D4 , a second electrically conductive element D5 can be inserted to make contact with terminals of the batteries with like polarity, such as a spring-loaded metal pin with a first end in contact with like-polarity terminals that are adj acent and touching, and a second end, longitudinally opposite the first , that protrudes radially from the second hole D4 . Preferably, this second electrically conductive element D5 is angularly spaced from the first electrically conductive elements D3 to reduce the risk of short circuits and is in contact with a third electrically conductive element E , preferably a metal ring, configured to axially engage with an edge of the second housing D positioned toward the electronic control board B . For instance , the third electrically conductive element E may have a recessed surface portion shaped to wrap around and contact the second electrically conductive element D5 . Additionally, based on the number of batteries used in the embodiment described here , an additional structural solution is provided to connect the terminal of the battery facing the bottom surface of the compartment DI , i . e . , the negative terminal , to the electronic control board . Speci fically, the second housing D includes on a portion of its perimeter surface , which faces the compartment A3 of the first housing A when in use , diametrically opposite radial openings D6 configured to partially insert within the compartment DI a fourth electrically conductive element D7 that , in use , extends parallel to the bottom surface of compartment DI , preferably within a longitudinal groove , ensuring contact with the battery terminal , e . g . , the negative terminal . Furthermore , this fourth electrically conductive element D7 is shaped so that its longitudinally opposite ends extend axially toward the electronic control board B, allowing it to contact the third electrically conductive element when the second housing D is mounted within the first housing A. In this way, according to this constructional configuration, the ends of the fourth electrically conductive element D7 are , in use , at least partially in contact with the surface of the third electrically conductive element E , which is , in turn, in contact with a second pin B2 extending from the electronic control board . This configuration ensures that all terminals with the opposite polarity to the battery terminal in contact with the first pin Bl , e . g . , the negative terminals , are electrically connected to the electronic control board B .

[0026] It should also be noted that the second housing D i s made of an electrically insulating material , such as a polymer resin like acetal polyoxymethylene resin, to prevent the batteries ' terminals from short-circuiting while connected to the respective pins Bl and B2 . Preferably, to reduce the axial bulk of the third electrically conductive element E when mounted onto the second housing D, an axial recess may be created, defining part of a buttonhole configured to wrap around the first electrically conductive elements without contacting them . According to another aspect of the present invention, to rigidly secure the second housing D to the first housing A, the power and control unit U2 includes a cap F with an end Fl designed to be rigidly and detachably engaged with the second housing D . Speci fically, this second housing features protrusions D8 extending longitudinally from the transverse surface at the end opposite to where the third electrically conductive element E is mounted in use . The cap F, on the other hand, is shaped to have axially through holes F2 so that when the end Fl of this cap is engaged with the end of the second housing D, a form- fit connection is created between the holes F2 and the proj ections D8 . This connection rigidly secures the cap F to the second housing D, forming a barrier that prevents impurities like dust from entering the first housing A. In this manner, an end portion Fl of the cap engages with the end of the second housing, extending at least partially along a longitudinal segment of the end of this second housing . Speci fically, the collar-shaped end Fl of the cap can be used to rigidly connect the second housing D to the first housing A, for example , through a threaded connection that engages the first end Fl of the cap axially with the second housing mounted on the first housing A. This also enables pre-assembly of the second housing D on the cap F so that , by securing the cap to the first housing A, the electrical power connection of the electronic control unit B to the third electrically conductive element E and, for example , the positive terminal of the button cell battery, is simultaneously made . According to an additional aspect of the invention, a seal G, such as an o-ring, can be placed between the perimeter edge on the end of the first housing A and the surface of the cap F in contact with this perimeter edge to prevent the entry of dust , moisture , etc . , into the power and control unit U2 when in operation . The power and control unit U2 also includes an antenna (not shown in the figure) for data exchange with the electronic control unit B. Specifically, the electronic control unit is programmed to receive a wireless command signal, e.g., from a smartphone via a dedicated app or wireless connection, such as Bluetooth, and to process this signal to operate the motorized locking system to lock or unlock the opening of the door, window, gate, etc., in which it is installed. In a preferred embodiment of the present invention, as shown in Fig. 1, the motorized locking system can be an electronic cylinder for doors, windows, etc., which can be electrically operated to lock or release the opening of the door, window, etc., where it is mounted. Specifically, as shown in Fig. 4, the electronic cylinder includes a body 1 extending parallel to an axis XI, this body being created by the rigid connection of a first and second stator la, lb, which are hollow along the axis XI. To connect the first and second stators, the body 1 also includes a coupling element 1c longitudinally positioned between the first and second stators to axially separate them and define an axial space between the first and second stators. Additionally, the electronic cylinder includes a first knob 2 with a profile segment that extends longitudinally within body 1, specifically within the first stator la, such that a longitudinal end 3 partially protrudes into the axial space between the first and second stators. The electronic cylinder also includes an eccentric 4 with a first and a second housing 4a, 4b that are longitudinally opposed and communicate via a first hole 5. The first housing is rigidly attached to the first longitudinal end 3 of the first knob, so that the eccentric 4 and the first knob 2 are fixed together to prevent rotation relative to axis XI , for instance , through a threaded connection . In particular, when the electronic cylinder is in operation, the eccentric 4 is rotated to lock or release the opening of the door, window, etc . , in which the cylinder is installed . This is achieved by rotating the eccentric 4 , for example , by turning the first knob, which in turn activates one or more movable pins configured to extend from the door, window, etc . , engaging with its frame when it is to be locked, or retracting to disengage from the frame when it is to be unlocked . As can be understood, with the eccentric 4 firmly connected to the first knob 2 for rotational control , e . g . , turning the first knob 2 always allows the door to be locked or released . This knob is positioned on the side of the space the user intends to secure , such as a home or of fice . To open a door , window, etc . , from an external space relative to the protected area, the electronic cylinder includes a second knob 6 , which incorporates a rotor 7 that extends longitudinally within body 1 , speci fically within the second stator lb, with a second longitudinal end 8 that partially protrudes into the axial space between the first and second stators , facing the second housing 4b of the eccentric . Additionally, this second knob 6 has a grip portion 9 that i s hollow along its length, forming a blind hole 10 , which securely holds a longitudinal portion 7a of rotor 7 that extends outside the second stator lb, allowing a user to rotate the second knob to lock or unlock the door in which the cylinder is mounted . Preferably, to secure the grip portion 9 to rotor 7 , the grip portion may have a hole 11 made transversely to the longitudinal portion 7a, allowing the insertion of a locking element (not shown in the figure ) in hole 11 , which interferes with both the grip portion and the rotor . Additionally, to prevent axial movement of the first and second knobs 2 , 6 along the axis XI , holes 12 , 13 are made in the first and second stators la, lb, into which pins are inserted, each with a longitudinal end that at least partially protrudes into the longitudinal cavity where the first and second knobs are at least partially housed . Additional ly, the longitudinal ends of each pin are positioned inside a first and a second perimeter groove 14 , 15 , created respectively on a profile portion of the first knob 2 and on a profile portion of the rotor 7 , so that the first and second knobs 2 , 6 can be guided in rotation with their respective grooves moving relative to the corresponding pin . At the same time , they are blocked from axial translation, preventing the first and second knobs from being extracted from the body 1 during use , e . g . , during an attempted theft . According to one aspect of this invention, the electronic cylinder also includes a hollow shuttle 16 positioned at least partially within the second seat 4b of the eccentric, extending through hole 5 toward the first end 3 of the first knob 2 , such that its opposite longitudinal end is partially engaged within a first longitudinal cavity 17 formed on the first end 3 of the first knob 2 . Additionally, the end of the shuttle 16 within the eccentric seat 4b includes a tooth 18 engaged in a housing 19 made on the second longitudinal end 8 of rotor 7 , aligned with axis XI , so that the second knob 6 and the shuttle 16 are rotationally constrained relative to axis XI . With this configuration, since the second knob 6 is not rotationally constrained to the eccentric 4 , it is not possible in a resting position to lock or unlock a door in which the electronic cylinder is mounted by rotating the second knob . This design is advantageous , as the second knob 6 i s placed on the external side of an area the user wants to protect , such as an apartment or of fice , meaning a user cannot lock or unlock the door from this external space ; the second knob spins freely . According to an additional aspect of the invention, to open a door equipped with cylinder S from the external side , it is necessary to rotationally link the second knob 6 to the first knob 2 , speci fically linking the second knob 6 to the eccentric 4 . To achieve this , the electronic cylinder includes a motori zed electric unit U1 ( Fig . 4 ) mounted on the first knob 2 , containing an electric motor 20 partially positioned within a second longitudinal cavity 21 of the first knob 2 , where it is securely fixed . This second cavity is connected to the first cavity 17 through a hole 22 . The motori zed electric unit U1 also includes a connection element 23 rigidly locked to the rotation of the electric motor shaft 20 and extending longitudinally from the second cavity to the first cavity . Furthermore , the motori zed electric unit U1 includes an insert 25 mounted on the end of the connection element 23 opposite the motor shaft , configured to move the shuttle 16 longitudinally to engage it with the eccentric 4 , thereby linking the second knob 6 to the f irst knob 2 for rotation . Speci fically, insert 25 extends parallel to axis XI from the connection element 23 through the shuttle 16 , with one end positioned opposite the end attached to the connection element . Preferably, gears are placed between the motor and connection element 23 to adj ust the rotation of the connection element by transmitting torque to convert a first torque from the motor into a di f ferent second torque for the connection element , e . g . , a greater torque . The insert 25 is connected to the connection element 23 so that rotating the connection element via electric motor 20 causes translation of insert 25 parallel to axis XI . For example , as shown in Fig . 4 , the conversion of rotational motion to translational motion between connection element 23 and insert 25 may use a screw-nut configuration, where the connection element 23 has a threaded end portion engaged within a threaded longitudinal hole 26 along a section of the insert . With this configuration, electric motor 20 can be operated to rotate connection element 23 , which in turn moves insert 25 in translation toward the first knob 2 to engage shuttle 16 with the eccentric, speci fically by engaging a portion of shuttle 18 within a pocket 4c ( Fig . 4b-4d) created on a section of the eccentric' s second seat 4b defined by a circular sector . This pocket 4c has two circumferential stops , allowing the shuttle to fit with circumferential play, ideally engaging the shuttle tooth 18 . Another pocket 4d may be provided to engage the diametrically opposite edge of the shuttle end where tooth 18 is located when it is engaged in pocket 4c . According to an additional aspect of the present invention, the shuttle 16 features a longitudinal cavity 16a facing toward the rotor 7 and configured to house a first spring 27 that extends from this seat parallel to the XI axis to contact a shoulder 28 made on the insert 25 , which is longitudinally positioned between the first spring 27 and the second knob 6 , with which the first spring is in contact . In this way, thi s shoulder 28 can be utili zed to load the first spring 27 as the insert 25 is translated in motion toward the first knob 2 . When this occurs , the first spring 27 generates a pushing force on the shuttle 16 , causing a portion of the shuttle to be inserted into pocket 4c made on the eccentric . This also happens when the pocket 4c and portion 18 are not initially aligned in the angular direction; after the user' s " idle" rotation of knob 6 to open, when portion 18 and pocket 4c become angularly aligned, the spring 27 , preloaded by the action of the motori zed electric unit Ul , will push the portion into the pocket . In this way, a form- fit coupling is defined, so that shuttle 16 is rotationally locked to the eccentric 4 , which, in turn, remains engaged with rotor 7 , meaning that the first and second knobs 2 , 6 are rigidly locked for rotation relative to axis XI . In this manner, the door in which cylinder S is installed can be locked or unlocked from the external environment , such as a home , of fice , etc . , by rotating the second knob 6 . To disconnect the second knob 6 from the eccentric 4 so that the knob again rotates freely, i . e . , preventing the door from being locked or unlocked from the external environment of the residence , the electric motor 20 is activated to rotate in the opposite direction, thus translating the insert 25 toward the rotor 7 . In this way, the first spring 27 is released, facilitating the axial displacement of the shuttle away from the eccentric 4 to disengage from it . Speci fically, to achieve an axial displacement of the shuttle toward rotor 7 , the electronic cylinder includes a spacer 29 rigidly fixed to the insert 25 , positioned opposite to the shoulder 28 in relation to the shuttle 16 . In particular, this spacer 29 is used to axially move shuttle 16 when insert 25 translates toward the second knob 6 . For example , the spacer 29 could be a component mounted on the insert 25 , such as a retaining ring, or it could be a radially extending portion of the insert , such as a shoulder . In this way, when insert 25 translates , the spacer contacts shuttle 16 , moving it toward rotor 7 and disengaging it from the pocket 4c of the eccentric . This spacer 29 is also utili zed during the assembly phases of the cylinder components within the body 1 , speci fically defining a stop against which the shuttle 16 with the first spring 27 onboard abuts , e . g . , thus blocking axial movement toward the first knob 2 . Preferably, to facilitate the disengagement of shuttle 16 from eccentric 4 , the electronic cylinder may include a second spring 30 positioned within the first longitudinal cavity 17 of the first knob 2 , opposite the first spring 27 relative to shuttle 16 . In particular, this second spring 30 is configured to exert a reaction force lower than the pushing force of the first spring 27 when the insert 25 is translated longitudinally, approaching the first knob 2 . Conversely, when the first spring 27 is discharged due to the translation of the insert 25 toward the rotor 7 , the second spring 30 exerts a pushing force greater than the reaction force of the first spring, thereby exerting an additional push on the shuttle beyond that exerted by the spacer 29 .

[0027] Preferably, the rotor 7 may feature a blind hole 31 axially made on its second longitudinal end 8 , where this blind hole is configured to house a longitudinal portion of the insert 25 , resting against a preloaded third spring 32 , which exerts a pushing force on the insert 25 toward the first knob 2 . Advantageously, the presence of the third spring 32 allows for an additional pushing force on the insert 25, helping the shuttle 16 approach the eccentric 4 and, at the same time , dampening the force applied to the insert by the second spring 30 toward the rotor 7 . This helps reduce peak loads on the components , thus improving overall reliability . Similar to the use of the third spring 32 , the electronic cylinder may preferably include a fourth spring 33 placed inside the longitudinal hole 26 in the insert 25 . Advantageously, this fourth spring 33 allows for the application of an additional pushing force on the insert 25 when it translates toward the rotor 7 , further faci litating the disengagement of the shuttle 16 from the pocket 4c on the eccentric 4 . According to an aspect of the present invention, to operate the electronic cylinder without requiring mechanical keys to be inserted into it , the power and control unit is mounted in use within the first knob in a releasable manner, e . g . , in a hollow grip portion extending from the first stator la and representing the first housing Al , which preferably has a shape adapted to the embodiment of the lock T shown in Fig . 5 . Thi s way, the electric motor 20 is electrically connected to the power and control unit U2 , e . g . , via power cables , allowing it to be powered and actuated by the latter . Speci fically, the electronic control unit B is programmed to receive a wireless command signal , e . g . , from a smartphone through a dedicated app or Bluetooth connection, and process this signal to actuate the electric motor 20 in rotation, thereby moving the insert 25 axially to lock or unlock the opening of a door in which the cylinder is mounted, depending on the received command. For example, when the electronic control unit B receives a command signal to unlock the opening of the door in which the electronic cylinder is installed, e.g., the front door of a residence, this unit sends an actuation signal to the electric motor 20, which rotates the connecting element 23 and, in turn, through its rotation, moves the insert 25 toward the first knob 2. As described previously, the advancement of the insert 25 couples the first and second knobs 2, 6 to rotate together through the shuttle that is brought into contact with the eccentric. In this way, a user outside the residence can rotate the second knob 6 and open the door to enter. To relock the door once the user has entered, e.g., their residence, a wireless command signal can be sent to the electronic control unit, e.g., via smartphone, causing the electric motor 20 to rotate in the opposite direction to release the shuttle from the eccentric 4, i.e., thus disengaging the second knob from the eccentric so that, when a user attempts to open the door from outside, this second knob rotates freely. Preferably, to prevent a user who has entered, e.g., their residence from forgetting to send the command signal to the electronic control unit B to relock the door— thus leaving the door unlocked— or to prevent the user from having to manually manipulate the first knob 2 to lock the door, the electronic control unit B can also be programmed to actuate the electric motor 20 to rotate, releasing the shuttle 16 after a predefined time interval. Furthermore, the electronic control unit B is programmed to detect the correct placement of the batteries inside the second casing D, e.g., after a replacement due to the depletion of one or more batteries previously housed within the power and control unit U2. In particular, by detecting electrical parameters such as current intensity, voltage, etc., via sensors within the electronic control unit B, it is possible to determine if the batteries are positioned in a desired configuration, preferably in a parallel connection, or in an undesirable configuration. For example, to notify a user whether the batteries are in a desired or undesired configuration, the power and control unit U2 may include an alert device (not shown in the figure) , preferably visual, such as an LED light, located inside the second casing D. For instance, if a visual alert device is used, the second casing D can be made of a material that allows light to pass through the end where projections D8 are located, so that the emission of light can alert a user when the batteries are in the desired configuration. In this way, in use, the emitted light passes through at least one hole F2 created on the cap F. Thus, with this configuration, as soon as the batteries are replaced, a user can verify in real-time whether the batteries have been arranged in the desired manner. In a further preferred embodiment of the present invention, as shown in Fig. 2, 5-10, the motorized locking system may be an electronic lock T configured to lock two or more adjacent components, such as doors, cabinets, suitcases, bicycles, etc. Specifically, as shown in Fig. 5 and 7, the electronic lock includes a body 101, preferably parallelepiped in shape, and a locking element 102, preferably a semicircular hook, with a first end 102a engaged inside a first hole 103 with an X100 axis created on a perimeter face of the body 101, and a second end 102b, longitudinally opposite to the first , releasably engageable inside a second hole 104 with an X200 axis , preferably a blind hole , made parallel to the first hole 103 . In this structural configuration, the electronic lock can operate between a locked configuration, in which the first and second ends 102a, 102b of the locking element 102 are rigidly engaged within the body 101 , and a released configuration, in which the first end 102a is free to slide along at least part of the first hole , disengaging the second end 102b from the second hole 104 and distancing it from the body 101 . In the following description, the locking element 102 will be referred to as the "hook . " Preferably, in the released configuration, the body 101 and the hook 102 can rotate relative to each other . In this way, when the electronic lock is in a released configuration, the second end 102b can engage components to be locked, e . g . , within two aligned eyelets located respectively on a door and its surrounding frame , so that the eyelets are engaged by a portion of the hook 102 . Furthermore , to place the electronic lock in a locked configuration, e . g . , blocking the door' s movement relative to the frame to keep it closed, from a released configuration, it is necessary to move the hook axially toward the body 101 so that the second end 102b is rigidly engaged at least partially within the second hole 104 . Speci fically, to keep the hook 102 locked in position once the second end is engaged inside the second hole 104 , the hook 102 ' s structural geometry is used, particularly a first contoured profile section 102c created on the first end 102a of the hook . For instance , this first contoured profile section features a recessed surface , preferably a hollow hemisphere , facing a third hole 105 ( Fig . 7 ) with an X300 axis created transversely to the f irst hole 103 , preferably perpendicularly . Additionally, this third hole 105 extends from a perimeter face of the body 101 parallel to a crosssection of the first end 102a, facing the first hole 103 and overlapping with it . Further, the third hole 105 extends longitudinally past the first hole 103 on the oppos ite side of the face on which this third hole 105 is created, forming a blind hole on one end and closed by an insert I on the opposite end . In this way, the third hole 105 and the first contoured profile section 102c can be used to set the lock in either a locked or released configuration . To do so , the lock includes a sliding pin 106 placed along at least part of the third hole , between the first contoured profile section 102c and the bottom of this third hole . In particular, this pin 106 is engaged within the third hole 105 , allowing longitudinal movement between an advanced position, where it axially proj ects at least partially into the first hole 103 to contact the first contoured profile section 102c, creating a shape- fit connection that blocks the axial movement of the hook 102 , and a retracted position where it is withdrawn inside the third hole 105 , distanced from the first contoured profile section 102c, thus allowing the hook 102 to slide along axis X100 . Consequently, once the second end 102b is engaged inside the second hole 104 , by actuating the pin 106 into the advanced position, it is possible to lock the lock in a secure configuration, which remains in place until the pin 106 is moved back to the retracted position, releasing the hook 102 . According to one aspect of the present invention, the hook 102 ' s axial travel is limited so that the first end 102a cannot be extracted from the first hole 103 , even when the lock is in a released configuration . In particular, to achieve this result , the body 101 has a hole 130 created transversely and preferably perpendicular to the X100 axis in a portion of the first hole , preferably between the first contoured profile section 102c and the entrance of the first hole . Speci fically, inside this hole 130 is housed a spring 131 on which a pin 132 rests , which in turn is housed in a pivot 133 with a recessed seat 134 facing towards the entrance of the hole 130 . When these components are assembled inside hole 130 , the pivot 133 protrudes at least partially into the first hole 103 , extending towards hole 130 . Therefore , based on this structural configuration, the hook 102 has a second contoured profile section 102d, preferably grooved, located between the first contoured profile section 102c and the entrance of the first hole 103 when the lock is in a locked configuration, defining the axial section along which the hook 102 moves inside the first hole 103 . Speci fically, the second contoured profile section 102d includes opposite longitudinal ends , each radially raised towards the wall of the first hole 103 . In this way, the pivot 133 is located between these ends of the second contoured profile section, so that when the electronic lock is in a released configuration, the hook 102 is movable in translation parallel to the first axis X100 , extending out of the first hole 103 until the lower end of the second contoured profile section 102d, i . e . , the one closest to the first contoured profile section 102c, comes into contact with the pivot 133 , which in turn blocks the axial movement of the hook, thus preventing its complete extraction from the body 101 . To move the hook 102 to a position where the first contoured profile section 102c is facing the pin 106 to lock the lock, the upper end of the second contoured profile section is used . Speci fically, the hook is translated parallel to the X100 axis until this end contacts the pivot 133 , which in turn blocks the axial movement of the hook, preventing it from continuing its axial movement inside the body 101 . When this occurs , the first contoured profile section 102c faces the pin 106 in a position where it can be engaged by the pin to block the hook' s movement in translation parallel to the X100 axis , i . e . , placing the electronic lock in a locked configuration . Preferably, to allow the hook 102 to rotate around the X100 axis when the lock is in a released configuration, in order to facilitate engagement with the components to be locked, the hook 102 includes a groove 135 made circumferentially around the lower end of the second contoured profile section . In this way, when the hook 102 is moved axially out of the first hole 103 , the lower end of the second contoured profile section 102d is brought into contact with the pivot 133 , so that the pivot can be engaged inside groove 135 . Speci fically, when the pivot 133 is engaged in groove 135 , the hook 102 becomes free to rotate but locked in translation along the X100 axis , so that while the hook 102 can rotate , it cannot be extracted from the body 101 , even when the lock is in a released configuration . According to a further aspect of the invention, when the electronic lock is in a released configuration, it is possible to operate on the pivot 133 to remove the hook 102 from the body 101 in such a way, e . g . , as to replace it with another hook of a different axial length, e.g., to engage a larger number of components inside the semi-ring of the hook. To do this, it is possible to insert a tool into the recessed seat 134 of the pivot 133 in order to apply an axial force that compresses the spring 131 and moves the pivot 133 further in. When this occurs, the pivot 133 is positioned inside the first hole 103 so that, when the hook 102 is removed from the body 101, the lower end of the second contoured profile section 102d is not blocked in translation by the pivot 133, allowing the hook to be detached from the body 101. In this way, it is possible to insert a hook 102 with the same structural configuration but a different axial extension, e.g., of the semi-ring, while keeping the pivot 133 inside hole 130, so that while the new hook moves within the first hole 103, the lower end of the second contoured profile section 102d is not blocked in translation by the pivot 133, allowing the hook to be engaged in the body 101. Once the lower end advances and surpasses the axial position of hole 130, the pivot 133 can be released to lift towards hole 130, pushed by the spring 131, and positioned again between the lower and upper ends of the second contoured profile section 102d. As shown also in Figs. 5 and 6, the electronic lock further includes a motorized electrical unit U100 configured to actuate the pin 106 into an advanced position, i.e., to bring the lock into a locking configuration. Specifically, on a peripheral face of body 101, preferably opposite to the one where the first and second holes 103, 104 are formed, a fourth hole 107 is made with the X400 axis, and this fourth hole is shaped to house the motorized electrical unit U100. Furthermore, the fourth hole 107 extends longitudinally transversely and preferably perpendicularly to the third hole 105 , facing towards the third hole 105 and overlapping it . Additionally, the fourth hole 107 extends beyond the third hole 103 ( Fig . 7 ) from the longitudinally opposite side of the body face where the fourth hole 105 is made , defining a blind hole . Therefore , as can be understood, body 101 is configured such that the first hole 103 is in communication with the third hole 105 , which in turn is in communication with the fourth hole 107 . Speci fically, Fig . 6 shows an exploded view of the motori zed electrical unit U100 , indicating with arrow M100 the mounting direction of the components inside the fourth hole 107 . In particular, the motori zed electrical unit U100 includes an actuator element 108 ( Fig . 6 ) located at the bottom of the fourth hole 107 such that a first portion 108a is at least partially longitudinally facing the third hole 105 , and a second portion 108b, from the entrance of the fourth hole , is in contact with a stop defined by the longitudinal profile of the fourth hole 107 . Moreover, the actuator element 108 is configured to be rotatable around the X400 axis , using the first portion 108a at least in part in contact with one end of the pin 106 so that a rotation of the actuator element causes the pin to move towards the first end 102a of the hook 102 . Speci fically, on the first portion 108a of the actuator element 108 , a recessed surface 109 is made , preferably convex, which faces towards the third hole 105 from the side of the hook 102 when the electronic lock is in a released configuration . In this position, an axial space is defined between the recessed surface 109 and the pin 106 , which is used to retract the pin towards the actuator element 108 . In this way, the longitudinal end of the pin 106 is brought into contact with the recessed surface 109 . In this position, the pin 106 is disengaged and spaced from the first contoured profile section 102c, allowing the hook to move freely in translation parallel to the X100 axis . Therefore , to bring the pin 106 into an advanced position, the remaining surface of the first portion 108a is used . Speci fically, since the latter has a larger radial extension than the recessed surface 109 , when the actuator element 108 is rotated, the pin 106 disengages from the recessed surface and is pushed longitudinally towards the contoured profile section 102c by the remaining surface of the first portion 108a . In this way, the pin 106 advances such that its longitudinally opposite end to the one facing the recessed surface 109 protrudes at least partially into the first hole 103 , contacting the hook and engaging with the first contoured profile section 102c, e . g . , defining a shape coupling that thus locks the hook in translation . Moreover, to maintain the actuator element 108 axially locked inside the fourth hole 107 , the motori zed electrical unit U100 includes a first support element 110 , preferably cylindrical , within which the actuator element 108 is at least partially housed . Speci f ically, the first support element 110 is positioned against the stop of the fourth hole 107 and is rigidly locked in translation inside the fourth hole 107 . For example , the first support element 110 may include a hole 111 on its peripheral surface , which may be disposed facing a corresponding hole 145 made on body 101 to allow the insertion of a locking element transversely to the axis of hole X400 , such as a pin (not shown in the figure ) , to axially lock the first support element . Furthermore , the first support element 110 has a first and a second cavity 110a, 110b longitudinally opposed to each other, such that the first cavity 110a is disposed towards the actuator element 108 , while the second cavity 110b is disposed towards the entrance of the hole . Therefore , according to this construction configuration, the actuator element 108 has the second portion 108b housed in the first cavity 110a, where it is rigidly locked in translation . Speci fically, on a peripheral portion of the second portion 108b of the actuator element , buttonholes 112 are made transversely to the X400 axis , in which a pin 113 i s engaged, protruding radially from a hole 114 made on the peripheral surface of the first support element 110 facing the wall of the fourth hole 107 . Speci fically, since the pin 113 has a greater length than the length of hole 114 , a portion of the pin protruding radially engages within the buttonhole 112 . In this way, the pin 113 blocks any axial movements of the actuator element 108 along the X400 axis . Moreover, the transverse position of the buttonhole 112 relative to the X400 axis is used to perform the rotational movement of the actuator element 108 , i . e . , the actuator element is guided in rotation via the pin engaged within buttonhole 112 . Preferably, the pin 145 locks the first support element 110 to the body 101 , and the pin 113 acts as an angular stop for the actuator element 108 through the circumferential extension of the buttonhole 112 .

[0028] Moreover, the first and second cavities 110a, 110b are communicated through an axial hole 115 ( Fig . 7 ) through which at least one end of the actuator element 108 extends from the first cavity 110a towards the second cavity 110b. To define a protective barrier against water and other atmospheric agents, a sealing ring G is housed within the first support element 110, e.g., inside the first cavity 110a, and is axially pressed by the actuator element 108. Additionally, to rotate the actuator element 108, the motorized electrical unit U100 includes an electric motor 116, e.g., a gearmotor, disposed inside the fourth hole 107 to be mechanically power-transmitted, e.g., via a shaft, to the end of the actuator element 108 that protrudes from the axial hole 115. Furthermore, to axially lock the electric motor 116, the motorized electrical unit U100 includes a second support element 117, preferably cylindrical, mounted inside the fourth hole 107, such that it has a longitudinal hole 118 extending parallel to the X400 axis, in which the electric motor 116 is at least partially engaged. Specifically, this second support element 117 has a first end 117a disposed towards the first support element 110, on which a first longitudinal recess 119 is made, shaped to be axially connected to the first support element 110, e.g., by a threaded connection. Preferably, since both the first and second support elements 110, 117 are cylindrical, to facilitate their gripping with a tool during assembly, flat seats 120a, 120b are provided on the peripheral surfaces facing the fourth hole 107, in which a tool, e.g., the jaws of a clamp, can be engaged to screw, for example, the first support element to the second support element. Additionally, the second support element 117 has a second end 117b longitudinally opposite to the first end 117a, on which a second longitudinal recess 121 is made, configured to rigidly constrain the second support element to a collar 122 disposed longitudinally towards the entrance of the fourth hole 107 . Speci fically, the collar 122 has a proj ection 123 that extends longitudinally to be rigidly engaged to the second support element 117 , e . g . , by a threaded connection between the second recess 121 and this proj ection . Furthermore , the collar 122 has a longitudinal recess 124 facing towards the second support element 117 and shaped to house the portion of the electric motor 116 that protrudes from the second support element 117 . Speci fically, this collar 122 includes a shoulder 125 against which, in use , the electric motor 116 remains in contact , so as to be axially locked, leaving a free space between this shoulder and the bottom surface of the longitudinal recess 124 . In this way, since the first support element 110 is rigidly constrained to the body 101 of the electronic lock, e . g . , by a pin engaged in hole 111 , and since the col lar 122 is rigidly constrained to the second support element 117 , which in turn is rigidly constrained to the first support element 110 , the motori zed electrical unit U100 is locked in translation parallel to the X400 axis . Preferably, the electric motor 116 has at least one flattened area or radial proj ection, and consequently, at least one of the collar 122 or the second support element 117 has a crosssection shaped to couple with this flattened area or proj ection and lock the angular position of the electric motor 116 through a prismatic coupling . Furthermore , a hole 127 ( Fig . 7 ) is made on the bottom surface of the longitudinal recess 124 , through which the power supply cables of the electric motor 116 exit to be connected to the power supply and control unit U2 . Therefore , i f it is desired to bring the lock from a released configuration to a locked configuration, using this construction configuration, it is possible to actuate the electric motor 116 to rotate the actuator element 108 , which, rotating rigidly with the shaft of the electric motor 116 , with a stroke equal to the peripheral length of the buttonhole 112 , pushes the pin 106 towards the hook 102 , engaging with it and thus bringing the lock into a locked configuration . As can be understood, to keep the lock in the locked configuration, it is necessary that the actuator element 108 is kept rotated with the first portion 108a pushing the pin against the contoured profile section 102c of the hook . To return the lock to a released configuration instead, the electric motor 116 is actuated to rotate the actuator element 108 in the opposite direction, bringing the recessed surface 109 facing towards the third hole 105 on the side of the hook 102 , so that the pin 106 can retract , e . g . , by pulling the hook manually so that the first section of the contoured profile 102c pushes the pin towards the actuator element 108 , placing its end in contact with the recessed surface 109 . According to a further aspect of the present invention, on a wall of the body 101 parallel to the X400 axis of the fourth hole 107 , a hole 128 is made that extends transversely to cross the fourth hole , continuing transversely defining a channel 128a inside the body 101 that reaches a seat 129 made on the body 101 transversely and preferably perpendicular to the X100 axis . To close the hole 128 to prevent the ingress of impurities and dirt into the fourth hole 107 , an additional closure element 151 , e . g . , a pin, may be provided . Speci fically, this channel 128a is used to carry the power cables of the electric motor 116 from the fourth hole 107 to the seat 129, where the power and control unit U2 is mounted in use in a releasable manner, to which these cables are connected. Additionally, to protect the motorized electrical unit U100, particularly the electric motor, from the ingress of, e.g., moisture, dust, etc., that could damage its operation, in addition to the G seal, this motorized electrical unit U100 includes seals 146, e.g., a v-ring, arranged respectively in the connection area between the first and second support elements 110, 117 and the second support element and the collar 122 to protect the housing volume in which the electric motor 116 is mounted. The presence of these seals ensures protection against the ingress of dust and especially water according to international operating standards for electromechanical components, such as the IP68 standard contained in the IEC 60529 regulation. Moreover, to prevent moisture, dust, etc., from entering the fourth hole 107 from the seat 129 through the channel 128a, a sealing material, e.g., resin or another polymeric material, may be injected into the fourth hole 107 through the hole 128. In this way, both the fourth hole 107 and the channel 128a can be filled to prevent the ingress of moisture, dust, etc., via the seat 129, making the electrical conductors feeding the electric motor 116 from the housing A waterproof. For example, the sealing material is a liquid resin that solidifies after being injected into the fourth hole 107, e.g., acetal resin, polyoxymethylene, etc. To also prevent the resin from leaking out through the entrance of the fourth hole 107, a cap 147 can be provided, rigidly mounted in that hole. Based on this construction configuration, the power and control unit U2 (as shown in Fig. 3) is mounted in use in a releasable manner inside the seat 129. Specifically, to do this, the seat 129 has a recess 150 (Fig. 7) made at the bottom of the seat 129, shaped to define a centering for the first housing A of the power and control unit U2. Additionally, the first housing A has holes Al along a peripheral edge on the side of the recess 131, in which these holes are used to constrain the first housing A to the body 1. Specifically, by placing the first housing inside the seat 129 so that the holes Al face each corresponding hole 136 made on the body 101, the first housing can be rigidly fixed in place using locking elements 137 (Fig. 5) , e.g., pins. Furthermore, as shown in Fig. 8, to provide greater protection for the components of the power and control unit U2, the lock includes a cover 138 shaped to be removably engaged inside the seat 129. Specifically, to lock the cover inside the seat 129, the cover has a hole 139, preferably blind, which in use faces a corresponding hole 140 made preferably on a surface of the body 101 where holes 136 are made. In this way, a threaded connection element 141 [not shown in the drawings, the number is used for identification] , e.g., a screw, can be inserted into this hole to rigidly lock the cover 138 inside the seat 129. According to this construction configuration, the cover 138 can be easily removed, e.g., by rotating the screw with a key, to access the power and control unit U2, e.g., to replace the batteries. For example, for safety reasons, the seat 129 includes a non-threaded portion facing outward from the body 101 and a threaded portion facing the seat 129, with the screw 141 engaged in the latter. A tool, e.g., an Allen wrench, preferably with a non-standard head geometry and shaped differently from traditional ones, e.g., 'cross, ' 'flat, ' hexagonal, Torx, etc., is introduced from the outside into the seat 129 and couples with the screw 141, which, when advanced, is received in the hole 139 of the cover 138, locking it in the seat 129. For example, a tamper-proof screw may be used. When the screw 141 retracts, it disengages from the hole 139, and the cover 138 is released from the action of the screw. Preferably, hole 142 can be replaced with a buttonhole (not shown) made from the edge of the cover 138 on the side of the seat 129 so that the cover can be removed even when the electronic lock is in a locked configuration to replace the batteries. Additionally, by keeping the power and control unit U2 mounted on the lock, it is possible to remove the cap F from the first housing A to extract the second housing D along with the batteries to be replaced, without needing to disassemble the entire power and control unit U2 from the lock.

[0029] However, to prevent the power and control unit U2 from being removed while the lock is in operation, i.e., when the lock is in a locked configuration, for example during a theft attempt, the cover 138 has a construction configuration such that it cannot be removed when the lock is closed. Specifically, to achieve this result, the first hole 103 extends to face the seat 129, and the cover has a hole 142 facing this first hole so that, when the lock is in a locked configuration, the end 102a of the hook 102 protrudes at least partially into the seat 129 engaging within the hole 142. In this way, since the hook 102 is at least partially engaged within the hole 142, the power and control unit U2 cannot be extracted from the seat 129 even when the locking elements that constrain the power and control unit U2 and the cover to the body 101 , e . g . , the pins 137 and the screw 140 , are removed, because the presence of the hook 102 in the hole 142 prevents the cover from being removed from the seat 129 and, consequently, the power and control unit U2 . When the electronic lock is in a released configuration, however, the hook 102 is in an advanced position inside the first hole 103 , and thus disengages the end of the hook 102a from the hole 142 of the cover, allowing access to the power and control unit U2 by removing the cover . According to a further aspect of the present invention, the power and control unit U2 includes a sensor (not shown in the figure ) , e . g . , a Hall ef fect sensor, and an antenna (not shown in the figure ) , both connected for data exchange to the electronic control unit B . Speci fically, the electronic control unit is programmed to receive a wireless command signal , e . g . , from a smartphone via a dedicated application, and process this signal to actuate the motori zed electrical unit U100 to bring the lock into either a locked or released conf iguration depending on the received command . For example , when the electronic control unit B receives a command signal to bring the lock into a locked configuration, the control unit sends an actuation signal to the electric motor 116 , which in turn rotates the actuator element 108 , causing the pin 106 to move longitudinally toward the hook 102 . When, however, the electronic control unit B receives a command signal to bring the lock into a released configuration, the control unit sends an actuation signal to the electric motor 116 to rotate in the opposite direction, so as to bring the recessed surface 109 facing toward the pin 106 . In this way, the pin 106 can be moved longitudinally into a retracted position inside the third hole 105, disengaging from the hook 102, e.g., by applying a force on the pin 106, manually pulling the hook 102. According to a further aspect of the present invention, as shown in Fig. 7, the end 102a of the hook 102 carries a magnet 143, which is used to detect whether the lock is in a locked or released configuration when a user is away from the lock, e.g., via smartphone. Specifically, to achieve this result, the electronic control unit B is also programmed to receive a signal from the sensor and process this signal to detect a locked configuration of the lock when the magnet 143 is near the power and control unit U2, and a released configuration when the magnet is far from the power and control unit. Furthermore, the electronic control unit B is programmed to detect a correct battery mounting arrangement inside the second housing D, e.g., following a replacement due to the depletion of one or more batteries previously placed in the power and control unit U2. Specifically, through the detection of electrical parameters such as current intensity, voltage, etc., by sensors placed on the electronic control unit B, it is possible to determine whether the batteries are positioned according to a desired arrangement, preferably in parallel, or in an undesired arrangement. Additionally, to alert a user that the batteries are arranged in a desired or undesired configuration, the power and control unit U2 may include a warning device (not shown in the figure) , preferably visual, such as a LED light, placed inside the second housing D. For example, if a visual warning device is used, the second housing D can be made from a material that allows light to pass through the end where the projections D8 are placed, so that through the emission of light, it is possible to alert a user when the batteries are arranged in a desired configuration. In this way, the emitted light in use passes through at least one hole F2 made on the cap F and reaches the cover 138, which has at least one passing opening 144, making the emitted light visible through the second housing D. Therefore, according to this construction configuration, as soon as the battery replacement is made, a user can verify almost in real time whether the batteries have been arranged in the desired manner. Preferably, on the bottom surface of the cover facing the seat 129, at least one spring device can be provided, e.g., a spring pin, which, in use, is compressed in contact with the cap F when the cover 138 is mounted in the seat 129. Specifically, this spring device is used to automatically lift the cover 138 from the seat 129 when it is disengaged from the screw 141 in the hole 139 and the electronic lock is in an open configuration, i.e., in which the end of the hook 102 is disengaged from the hole 142 of the cover 138. It is possible to use the cover 138 to disassemble the cap F from the first housing A to extract the batteries, e.g., by engaging the cover on the edge of the cap and rotating the cap to unscrew it from the first housing. According to an alternative embodiment not illustrated in the figures, the construction configuration of the ring lock described above can also be extended to solutions including a lock of the type with a rod.

[0030] Preferably, furthermore, to prevent foreign objects from accumulating in the second hole 102b where the locking element engages, a drainage channel (not shown in the figure) can be provided so that , e . g . , when it rains , water entering the second hole 102b can drain through this drainage channel , thus minimi zing the risk of damage and mal function of the electronic lock .

[0031] According to a preferred alternative embodiment of the present invention, in Fig . 11 , an exploded view of an electronic lock T1 is shown, representative of another embodiment of the motori zed locking system, whose construction configuration partially derives from that of the electronic cylinder S and the previously described electronic lock T . In Figs . 11- 15 , the components already described in the embodiment of the electronic cylinder S have the same reference numbers , while the components already described in the electronic lock T have the same reference numbers plus one hundred . As shown in a sectional view of the electronic lock T1 in Fig . 12 , in the first hole 203 of the electronic lock, a first end 202a of a hook 202 , preferably arcuate , is securely housed, while in the second hole 204 , a second end 202b of the hook can be releasably housed, longitudinally opposite the first end, to perform the opening and closing of the electronic lock . Additionally, the first and second holes 203 , 204 are connected by the presence of a third hole 205 made transversely and preferably perpendicular along an apex section of a support body 201 on the side of the hook 202 . Again, to prevent the first end 202a of the hook from being extracted while the electronic lock is in operation, a stop is provided to block the translation of the hook 202 out of the first hole 203 . To prevent the extraction of the hook 202 from the first hole 203 , the hole 230 is used, which is made transversely and preferably perpendicular to the axis of the first hole 203, and specifically in a section between the third hole 205 and the bottom of the first hole 203. Specifically, inside this hole 230, a pin 331 is housed, which, protruding into the hole 203, blocks the hook from translating out of the lock body, e.g., the end of the hook has longitudinal shoulders opposite the pin 331, which limit the axial travel of the hook 202 when they come into contact with the pin 331. The electronic lock T1 also includes a first and a second insert 301, 302 arranged inside the third hole 205 in such a way as to be movable for translation to actuate the opening and closing of the electronic lock. In particular, these first and second inserts are extended longitudinally and shaped in such a way that they each present a first and a second tooth 303, 304 facing towards the first and second holes 203, 204, respectively, and a first and second stem 314, 315 (Fig. 13) extending from each respective tooth in the opposite longitudinal direction, i.e., towards the tooth of the other insert, and having at least partially facing flattened surfaces. The ends of the hook 202, on the other hand, each have a first and second shaped recess 305, 306 formed in a portion of the hook so that, when the second end 202b is engaged within the second hole 204, each tooth defines a form-fitting coupling with the respective recess. It should be noted that when the electronic lock T1 is open, the first and second inserts 301, 302 have their respective teeth at least partially protruding into the first and second holes 203, 204 so that, when the second end 202b of the hook is inserted into the second hole 204, the walls of the shaped recesses 305, 306 contact the respective teeth, exerting an axial force that causes the inserts to retract inside the third hole 205 to form a form- fitting coupling between the teeth and the recesses . In particular, to achieve this result , the first and second recesses 305 , 306 each have a converging profile towards the third hole 205 , preferably having a first wall parallel to the axis of the third hole 205 and a second wall that converges towards the axis of the third hole , so that when the tooth is engaged in the recess , it protrudes into the respective hole , blocking the hook from translating out of the body 201 .

[0032] Additionally, the first and second inserts 301 , 302 are connected to a first and second spring 307 , 308 , each longitudinally opposite to the tooth of the corresponding insert . Preferably, the springs 307 , 308 surround corresponding pins in a floating manner so that they are guided during compression . In this way, when the inserts are moved within the third hole 205 by the transverse component of the force of the hook 202 acting on each tooth, each spring compresses , generating an elastic reaction force that pushes the inserts against the hook, thus keeping each tooth engaged in the respective recess . To open the electronic lock again, it is therefore necessary to retract the first and second inserts 301 , 302 inside the third hole 205 to release the hook 202 for translation .

[0033] Preferably, to facilitate the opening of the hook of the electronic lock, a third spring 309 can be provided, mounted at the bottom of the first hole 203 and connected to the hook 202 so that , when the hook is in a closed configuration, the third spring is compressed ( Fig . 12 ) , exerting an elastic reaction force such that , when the inserts are retracted towards the third hole 205 to release the hook for translation, the third spring pushes the hook away from the body 201 to disengage the second end of the hook 202b from the second hole 204 . Preferably, a hole 335 can be provided at the bottom of the first hole 203 to faci litate the exit of any unwanted material that enters the first hole 203 , e . g . , water .

[0034] The electronic lock T1 also includes a cap 319 to close the access to the third hole 205 . According to another aspect of the present invention, to counteract attempts o f undesired opening of the electronic lock while it is in operation, e . g . , an attempt to break into a door locked with such a lock, the lock has a construction configuration such that it prevents a user from accessing the mechanisms within the body 201 that are used to move the first and second inserts to block or release the hook for translation . To achieve this , the body 201 has a fourth hole 310 made transversely and preferably perpendicular to the third hole 205 , and communicating with it in such a way that the first and second inserts 301 , 302 can be accessed through the fourth hole . For example , the fourth hole 310 is made on a face of the body 201 longitudinally opposite to the side facing the hook 202 . In particular, this fourth hole is used to install a motori zed electrical unit U200 and the previously described power and control unit U2 on the electronic lock Tl , where the motori zed electrical unit is used to operate a mechanical stop configured to counteract the axial movement of the first and second inserts 301 , 302 within the third hole 205 when the electronic lock is closed .

[0035] In particular, the power and control unit U2 is mounted for use inside a longitudinally hollow knob in a releasable manner and representative of a knob A10 , which preferably has a shape adapted to the design of the cylinder S in Fig . 4 . Speci fically, this knob A10 has a first portion disposed outside the body 201 of the electronic lock, in which the power and control unit U2 is placed, and a second portion that extends into the fourth hole 310 such that the knob A10 is locked in translation, e . g . , through a pin 332 inserted into a hole 333 made on the body of the lock to protrude and engage a circumferential groove made on the knob, and is rotatable relative to the axis of the fourth hole 310 . For example , a circumferential groove (not shown) can be provided inside the fourth hole so that the knob can be locked for translation by an elastic ring (not shown) that is securely engaged within this groove during use . Additionally, the motori zed electrical unit U200 is electrically connected to the power and control unit U2 and extends longitudinally inside the fourth hole 310 towards the end of the knob A10 from the side of the first and second inserts 301 , 302 . In particular, the motorized electrical unit U200 includes an electric motor 311 rigidly fixed in the longitudinal cavity of the knob A10 , e . g . , inside a sleeve 311a which is itsel f rigidly attached to the knob, a connection element 312 rigidly locked to the motor shaft 311 and arranged to extend longitudinally towards the first and second inserts 301 , 302 , and a shuttle 313 mounted at the end of the connection element opposite the end fixed to the motor shaft . Preferably, to regulate the rotation of the connection element 313 , gears 336 are provided between the electric motor and the connection element 312 , and they are connected to each other in a torque transmission so as to convert a first torque provided by the electric motor into a second torque provided to the connection element , dif ferent from the first torque , e . g . , a greater torque . The shuttle 313 is connected to the connection element 312 so that a rotation of the connection element actuated by the electric motor 311 causes a translation of the shuttle parallel to the axis of the fourth hole 310 . For example , as shown in Fig . 12 , the conversion of rotational movement into translational movement between the connection element and the shuttle can be made through a screw-nut configuration, where the connection element has a threaded end portion engaged inside a threaded hole made on the shuttle . In this way, the shuttle 313 can translate based on the direction of rotation of the electric motor ' s shaft 311 . Additionally, to prevent the disengagement of the shuttle 313 from the connection element when it reaches its end near the inserts , this end extends longitudinally towards the bottom of the cavity of the knob A10 so that it is axially spaced from the bottom by a distance shorter than the longitudinal extension of the shuttle , i . e . , the shuttle contacts the bottom of the longitudinal cavity without di sengaging from the connection element when it reaches the end of the connection element .

[0036] According to another aspect of the present invention, the knob A10 is used to counteract the axial movement of the first and second inserts 301 , 302 in the third hole 205 under the application of a force to disengage each tooth from its respective shaped recess . To achieve this result , the first and second inserts 301 , 302 each have a first and second shoulder 316 , 317 made respectively on the longitudinally opposite end from the respective tooth . Based on this construction configuration, when the teeth 303 , 304 are engaged respectively in the recesses 305 , 306 of the hook, i . e . , the electronic lock is closed, the first and second shoulders 316 , 317 are respectively located on the side of the cap 319 and on the side of the spring 309 , defining a seat 318 of engagement between these shoulders for a portion of the end Al l of the knob protruding inside the third hole 205 . In particular, the portion of the end Al l is shaped to have a first position in the seat 318 , i . e . , when the electronic lock is open, in which it is axially spaced from the first and second shoulders 316 , 317 so that the respective first and second inserts 301 , 302 can move transversely along the axis of the third hole 205 , and a second position, i . e . , when the electronic lock is closed, in which the knob A10 is rotated by a predefined angle so that the portion of the end Al l is in contact with the first and second shoulders , blocking the translational movement of the inserts under the application of a force to disengage the teeth from the recesses . In this way, after the electronic lock is closed, a user can rotate the knob A10 by a predefined angle to rotate the end portion and lock the translational movement of the first and second inserts 301 , 302 in the tooth engagement pos ition in the recesses . For example , the end portion Al l may extend in a direction transverse to the third hole 205 but be thin in another direction parallel to the hole . According to another aspect of the present invention, to keep the knob A10 locked in the rotated position that blocks the axial movement of the inserts , the electronic lock includes a pin 320 disposed in a hole 321 made in the knob transversely and preferably perpendicularly to the direction o f extension of this knob, more particularly placed between the end portion Al l of the knob and the shuttle 313 . Speci fically, as shown in Fig . 11 , 14a- 15 , the pin 320 has a shaped head, e . g . , pointed, in contact with the circumferential surface of the fourth hole 310 through a window made in the knob, and a body extending at least partially inside a guiding channel 322 in the knob to be constrained to the rotation of this knob A10 . Furthermore , the pin 320 has an end opposite the head disposed in an opening 323 made in the bottom of the cavity of the knob A10 and parallel to the axis of this cavity . Additionally, the shuttle 313 includes a protruding portion 324 extending at least partially parallel to this opening . The rotation of the knob A10 is al so possible thanks to the presence of a circumferential buttonhole 325 made at a predefined angle , e . g . , 90 ° . Based on this construction configuration, the knob A10 rotates the pin 320 so that the head of the pin, when rotating, faces a pocket 326 made in the fourth hole 310 , and when translating radially, it engages . Speci fically, when the head of the pin 320 engages in the pocket 326 , a form- fitting coupling is made , blocking the rotation of the pin and therefore , the rotation of the knob Al . Therefore , to keep the knob in this angular position, the control unit B is programmed to send an activation signal to the electric motor 311 , e . g . , after a command signal sent by a user via Bluetooth from a smartphone , to move the shuttle 313 by advancing the protruding portion 324 of the shuttle along the opening 323 to position itsel f facing the end of the pin 320 opposite the head . In this position, the protruding portion of the shuttle 313 blocks the translation of the pin 320 to disengage it from the pocket 325 , until the electronic control unit sends an activation signal to the electric motor to rotate in the opposite direction, moving the shuttle towards the connection element 312 and thus releasing the pin 320 to translate , allowing the rotation of the knob A10 in the opposite direction and opening the lock . In this way, the knob A10 can be rotated again to open the lock, releasing the hook 202 . Additionally, to block the entry of dust and water through the hole 321 that could reach and damage the electric motori zed unit U200 , the body of the pin 320 carries at least one sealing ring 327 , preferably a plurality of elastic sealing rings arranged longitudinally in sequence , preferably along the section of the pin between the head and the entrance to the guiding channel 322 . In the same way, to prevent dust and water from reaching the electric motori zed unit U200 by entering the knob from the side of the power and control unit U2 , it is possible to provide an additional sealing ring 328 between the casing 311a that holds the motor and the housing compartment A3 of the power and control unit . Advantageously, since the construction configuration of the knob A10 of the electronic lock T1 is derived from that used for the electronic cylinder in Fig . 4 , it is possible to optimi ze the manufacturing processes by making this part with the power and control unit and the electric motori zed unit substantially through a single production line for both applications . Additionally, the electronic lock includes an additional pin 329 inserted into a hole 334 made in the body of the lock and configured to protrude radially into the fourth hole 310 and define a mechanical stop for the rotation of the knob Al .

Claims

CLAIMS1. Closing system (S, T, Tl) preferably for a door comprising a mechanism having a first element and a second element movable relative to each other in a first configuration in which the mechanism closes the closing system and a second configuration in which the closing system is open, an electric motorized unit (Ul, U100, U200) and a power and control unit (U2) defining a pre-assembled block, electrically connected to each other, in which the power and control unit includes:- a body (Al; A10; 101) defining a housing (A)- an electronic control unit (B) mounted in a housing (A) , connected to the electric motorized unit (Ul, U100, U200) and programmed to actuate the electric motorized unit (Ul, U100, U200) in such a way as to cause the first or the second configuration of the mechanism through the movement of an insert (16; 108; 313) ;- a casing (D) made of an electrically insulating material disposed axially inside the housing (A) and closed by the electronic control unit (B) ;- first electrical conductors (D3) carried by the casing (D) and a first pin (Bl) of the electronic control unit configured to electrically connect poles with the same sign of batteries to be housed in the casing (D) , the poles being in agreement with a first pole of the battery directly in contact with the first pin (Bl) ;- second electrical conductors (D5, E) and a second pin (B2) of the electronic control unit configured toelectrically connect poles of the batteries opposite to the first pole, in which the second electrical conductors include an electrically conductive ring (E) carried by one end of the casing (D) and disposed in contact with the second pin (B2) ; and the first and second conductors are configured to connect the batteries in parallel.

2. Closing system (S, T, Tl) according to claim 1, comprising, when the batteries inside the casing (D) are in an odd number, an electrically conductive element (D7) extended radially in the casing so as to be electrically connected to the pole of the battery facing the bottom of the casing, with said electrically conductive element having ends extended axially connected to the electrically conductive ring (E) .

3. Closing system (S, T, Tl) according to any of the previous claims, in which the first and second electrical conductors (D3; D5, D7) respectively include first and second metal inserts extending radially from the respective poles of the batteries protruding from the casing, and the casing has at least one projection (D8) extended axially towards the entrance of the housing and engagable in at least one hole (F2) made on a cap (F) at the edge of the power and control unit (U2) so as to define a form-fitting coupling between the cap and the casing (D) ; and the cap has an end engagable axially between the casing and the housing so as to rigidly but releasably lock the casing to the housing (A) .

4. Closing system (S, T, Tl) according to claim 3, in whichthe power and control unit (U2) includes a first seal (G) interposed between the cap (F) and the housing (A) so as to prevent the entry of unwanted material into the housing.

5. Closing system (S, T, Tl) according to any of the previous claims, in which the electronic control unit (B) is programmed to actuate the electric motorized unit (Ul, U100, U200) in such a way as to bring the motorized closing system into a locking configuration after a predetermined time.

6. Closing system (S, T, Tl) according to any of the previous claims, in which the power and control unit (U2) includes a sensor connected in data exchange to the electronic control unit (B) , and the electronic control unit is programmed to receive a signal from the sensor, process it, and send a first warning signal when a desired arrangement of the batteries inside the casing (D) is detected, and a second warning signal when an undesirable arrangement of the batteries in the casing is detected.

7. Closing system (S, T, Tl) according to any of the previous claims, in which the closing device (D) includes an electronic cylinder.

8. Closing system (S, T, Tl) according to any of the previous claims, in which the closing device (D) includes an electronic lock.

9. Closing system (S, T, Tl) according to any of the previous claims, comprising:• a knob of said body (A10) housing the power and controlunit (U2) and the electric motorized unit (U200) , said body (A10) being elongated and rotatable in a support (201) ;• a pin (320) movable transversely to the rotation axis of the electric motorized unit and rigidly constrained to the body against rotation;• a slider (313) connected to the electric motorized unit (U200) such that rotation of this electric motorized unit causes a translation of the slider parallel to the axis of the electric motorized unit (U200) ; and in which, when the pin (320) is engaged in a radial pocket (326) of the support (201) locking a portion of the end of the knob (All) against rotation, the slider is translated in such a way that it is at least partially facing the pin (320) , blocking the translation of the pin towards the slider, thus locking the rotation of the knob in the support (201) ; and in which, when the slider is translated in such a way that it does not interfere with the movement of the pin (320) , the knob is rotatable, preferably by hand, in the support (201) , causing a retraction of the pin (320) thanks to a rounded edge of the pocket, and at least one of the first and second elements being connected in force transmission with the portion of the end (All) to cause the said second configuration through the rotation of the knob.

10. Closing system (S, T, Tl) according to claim 9, in which a portion of the body (A10) is perforated transversely defining a guide (322) for the pin (320) , and at least one seal (327) is disposed in the guide (322) so as to be transversely interposed between the head of the pin and theslider to prevent the ingress of unwanted material into the housing .

11. Closing system (S, T, Tl) according to claim 10, in which the seal (327) is elastic and is configured to resist the movement of the pin (320) towards the slider.

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