Electromechanical actuator, screening device comprising such an electromechanical actuator, and method for assembling such an electromechanical actuator

Abstract

The present invention relates to an electromechanical actuator for a shielding device, the electromechanical actuator comprising a housing, a torque support, and an electronic control unit (15), the torque support being mounted inside the housing and fixedly attached to the housing, and the electronic control unit comprising an electronic board (15a), a radio frequency communication module (27), and a wired radio frequency antenna (40). The radio frequency antenna extending through the torque support comprises a first end (42) and a second end (43) disposed outside the housing (17), the first end being electrically connected to the radio frequency communication module on a first surface (60a) of the electronic board. The electromechanical actuator further comprises a guide (48) fastened to the electronic board, the guide comprising a conduit (50) in which an antenna cable (41) is received, the conduit holding the antenna cable such that it forms a portion (442) having a curved trajectory and then a portion (441) having a straight trajectory.

Description

Technical Field

[0001] The present invention relates to an electromechanical actuator, a shielding device including such an electromechanical actuator, and a method for assembling such an electromechanical actuator.

[0002] In general, the present invention relates to the field of blinding devices including an electric drive device for moving a curtain. Background Technology

[0003] The electric drive includes an electromechanical actuator for a movable element used for closing, blocking, or sun protection, such as a curtain or any other equivalent device, hereinafter referred to as a curtain.

[0004] US 2008 / 212294 A1, US 2020 / 399959 A, EP 4 039 938 A1 and EP 4 195 489 A1 disclose known electromechanical actuators.

[0005] US 9 844149 B2 and US 9 742 054 B2 disclose antenna guides in another technical field.

[0006] An electromechanical actuator for a shielding device is known, comprising a housing, a motor mounted inside the housing, a torque support partially mounted inside the housing, and an electronic control unit partially mounted inside the housing. The electronic control unit includes an electronic board, a radio frequency communication module, and a wired radio frequency antenna. The wired radio frequency antenna must be both connected to the radio frequency communication module and protrude outside the housing, and it includes an antenna portion that extends freely inside the housing.

[0007] However, once the electromechanical actuator is assembled, the trajectory of the freely extending antenna portion within the housing is uncontrolled, which can impair the radio frequency (RF) performance of the wired RF antenna. In fact, this performance depends on the trajectory and length of the antenna portion extending within the housing. Therefore, during the manufacturing process of the electromechanical actuator, the RF performance of the wired RF antenna is not repeatable from one electromechanical actuator to another. Furthermore, the uncontrolled trajectory of the antenna portion extending within the housing can cause electromagnetic interference with other electronic components of the electronic control unit, particularly with the power electronic components of the electronic board. Moreover, the uncontrolled trajectory of the antenna portion extending within the housing increases the risk of the wired RF antenna being accidentally disconnected from the communication module during assembly or maintenance operations. In the event of such a disconnection, the RF communication of the electromechanical actuator becomes inoperable. Summary of the Invention

[0008] Therefore, the object of the present invention is to provide an electromechanical actuator that controls the trajectory of an antenna portion extending inside a housing.

[0009] Therefore, the subject of this invention is an electromechanical actuator for a shielding device, the electromechanical actuator comprising:

[0010] - A housing that extends along a longitudinal axis;

[0011] - A torque support, which is at least partially mounted inside the housing, and the housing and the torque support are fixedly attached to each other;

[0012] - An electric motor, which is mounted inside the housing; and

[0013] - An electronic control unit for controlling the electric motor, the electronic control unit comprising:

[0014] At least one electronic board, said electronic board being mounted inside the housing.

[0015] The radio frequency communication module assembled on the electronic board, and

[0016] A wired radio frequency antenna, the radio frequency antenna extending through the torque support and including a first end and a second end, the first end being electrically connected to the radio frequency communication module on a first surface of the electronic board, the second end being disposed outside the housing, the radio frequency antenna including a base extending from the first end to the torque support;

[0017] According to the present invention, the electromechanical actuator further includes a guide fastened to the electronic board, the guide including a conduit in which an antenna cable is received, and the conduit holding the base of the antenna cable such that the base forms a portion with a curved trajectory from a first end of the antenna cable toward a second end, and then forms a portion with a straight trajectory toward the torque support.

[0018] With the aid of this invention, and particularly with the presence of the guide member, the shape and arrangement of the base of the wired radio frequency antenna are controlled, i.e., the radio frequency antenna is held by the guide member. Within the meaning of this invention, the trajectory of the antenna portion is the path traversed by the antenna portion, which defines the position and orientation of the antenna portion at each point between its two ends. Therefore, the trajectory of the base of the wired radio frequency antenna extending within the housing is defined and controlled by the guide member. Thus, during the manufacturing process of the electromechanical actuator, the radio frequency performance of the wired radio frequency antenna is controlled and reproducible. Furthermore, the guide member ensures the retention of the wired radio frequency antenna within the housing, thereby preventing accidental disconnection of the wired radio frequency antenna from the communication module, particularly during the assembly of the electromechanical actuator.

[0019] According to other advantageous aspects of the invention, the electromechanical actuator includes one or more of the following features, which may be used individually or in all technically possible combinations:

[0020] - The electronic board is positioned parallel to the longitudinal axis.

[0021] - The portion of the base with a straight trajectory extends parallel to and spaced apart from the electronic board.

[0022] - The electromechanical actuator includes a clamping system fastened to the torque support, the portion having a linear trajectory being fixed to the clamping system by clamping.

[0023] - The base and the guide pass through the electronic board.

[0024] - The guide is fastened to the electronic board at the opening of the electronic board, and the guide and the base pass through the opening and through the electronic board.

[0025] - The guide element is molded around the base.

[0026] - The guide is an attachment that is separate from the radio frequency antenna and assembled together with the radio frequency antenna.

[0027] - The guide includes a protrusion disposed in the conduit of the attachment and configured to prevent the antenna cable from sliding in the conduit.

[0028] - The guide includes at least one gripper disposed at one end of the body of the guide and outside the conduit, configured to prevent the antenna cable from being removed from the conduit.

[0029] - The guide is made of polymer plastic material, especially an elastomer.

[0030] The present invention also relates to a shielding device comprising a curtain and an electromechanical actuator according to any one of the preceding claims, the electromechanical actuator being configured to drive the curtain between a retracted configuration and an extended configuration.

[0031] The present invention also relates to a method for assembling an electromechanical actuator as defined above, the method comprising:

[0032] - Insert the radio frequency antenna through the torque support, with the base of the radio frequency antenna housed in the conduit of the guide;

[0033] - When the antenna cable is housed in the conduit, the guide is secured to the electronic board;

[0034] - When the communication module has been assembled on the electronic board, connect the first end of the radio frequency antenna to the communication module;

[0035] - Secure the housing and the torque support together so that the electronic board is installed inside the housing;

[0036] - Pull the second end of the antenna cable until the base forms a straight trajectory in addition to the portion with a curved trajectory, while the guide holds the base.

[0037] Advantageously, the method for assembling an electromechanical actuator according to the invention, including a clamping system, as defined above, comprises: fixing the portion having a linear trajectory to the clamping system fastened to the torque support by clamping through the clamping system, so as to keep the portion having a linear trajectory taut. Attached Figure Description

[0038] The invention will become clearer from the following description, given only as a non-limiting example and with reference to the accompanying drawings, in which:

[0039] Figure 1 This is a schematic cross-sectional view of a device including a shielding device according to a first embodiment of the present invention;

[0040] Figure 2 yes Figure 1 A schematic perspective view of the device shown;

[0041] Figure 3 It belongs to Figure 1 and Figure 2 A schematic cross-sectional view of the electromechanical actuator of the device shown is taken along a cutting plane passing through the axis of rotation of the output shaft of the electromechanical actuator;

[0042] Figure 4 yes Figure 1 and Figure 2 A schematic partial front view of a portion of the device shown, wherein the curtain of the device is in an unfolded configuration.

[0043] Figure 5 yes Figure 3 A perspective view of an electromechanical actuator;

[0044] Figure 6 yes Figure 3 and Figure 5 A perspective view of the electromechanical actuator without its housing and without power supply cables;

[0045] Figure 7 yes Figure 6 A magnified view of detail VII;

[0046] Figure 8 yes Figure 3 and Figures 5 to 7 A perspective view of an electromechanical actuator without its torque support;

[0047] Figure 9 yes Figure 3 and Figures 5 to 8 A perspective view of the electromechanical actuator during the step of inserting the antenna cable through the cable support in the manufacturing method of the electromechanical actuator; and

[0048] Figure 10 This is a partial view of the interior of an electromechanical actuator according to a second embodiment of the present invention. Detailed Implementation

[0049] First, refer to Figure 1 and Figure 2 The device 6 according to a first embodiment of the present invention includes a means 3 for closing, blocking light, or providing sun protection, the means being installed in a building B including an opening 1 (window or door). The device 6 is equipped with a curtain 2, which is part of the means 3 for closing, blocking light, or providing sun protection, particularly an electrically operated curtain.

[0050] The device 3 used for closing, blocking light or sun protection is referred to below as a "shading device". The shading device 3 includes a curtain 2.

[0051] The shielding device 3 may include a blind, particularly a roller blind, pleated blind, or Venetian blind. This invention is applicable to all types of shielding devices. The following examples correspond to roller blinds.

[0052] The shielding device 3 includes a winding tube 4 and an electric drive device 5. The electric drive device 5 includes, for example, a winding tube 4 and an electric drive device 5. Figure 3 and Figures 5 to 9 The electromechanical actuator 11 shown is shown.

[0053] The curtain 2 of the shielding device 3 is wound around the winding tube 4 driven by the electric drive device 5, or unwound from the winding tube 4.

[0054] The curtain 2 extends along the movement axis Z as it retracts. The axis Z is also the movement axis along which the curtain moves under the action of the electric drive device 5. In this example, the movement axis Z is vertical.

[0055] The curtain 2 of the shielding device 3 is a curtain for closing, blocking light and / or sun protection, which is wound and unwound around the winding tube 4, the inner diameter of which is larger than the outer diameter of the electromechanical actuator 11, so that the electromechanical actuator 11 can be inserted into the winding tube 4 during the assembly of the shielding device 3.

[0056] Advantageously, the shielding device 3 includes retaining devices 9 and 23.

[0057] Advantageously, the retaining devices 9, 23 may include two support members 23. In the assembly configuration of the shielding device 3, a support member 23 is arranged at each end of the winding tube 4.

[0058] Therefore, the wound tube 4 is held in place by means of the support member 23. Figure 1 Only one of the support members 23 is visible. The support member 23 enables the mechanical connection of the shielding device 3 to the structure of the building B. In this example, the support member 23 enables the mechanical connection of the shielding device 3 to the ceiling of the building B. As a variation, the support member 23 enables the mechanical connection of the shielding device 3 to the wall of the building B above the opening 1, or to the pillar forming the window or door of the opening 1.

[0059] Advantageously, the retaining devices 9, 23 may include a housing 9. Furthermore, in the assembly configuration of the shielding device 3, at least a portion of the winding tube 4 and the curtain 2 are housed inside the housing 9.

[0060] Generally speaking, the housing 9 is arranged above the opening 1, or in the upper part of the opening 1.

[0061] Here, and as Figure 1 As shown, the support member 23 is also housed inside the housing 9.

[0062] Advantages, such as Figure 2 As shown, the housing 9 includes two side panels 10. In the assembly configuration of the shielding device 3, a side panel 10 is arranged at each end of the housing 9.

[0063] As Figure 2 In the variant shown, the winding tube 4 is held by means of the housing 9, and in particular by means of the side plate 10 of the housing 9, without using a support such as the support 23 mentioned above.

[0064] The electromechanical actuator 11 is, for example, of a tubular type. This allows the winding tube 4 to rotate about a rotation axis X, so that the curtain 2 of the shielding device 3 can be unwound or wound. The rotation axis X is also the longitudinal axis of the electromechanical actuator 11.

[0065] Therefore, the curtain 2 can be rolled onto and unwound from the winding tube 4. In the installed state, the electromechanical actuator 11 is inserted into the winding tube 4.

[0066] The shielding device 3 also includes a base rod 8, which is counterweighted to apply tension to the curtain 2. The tension generated on the curtain 2 by the base rod 8 is oriented along the movement axis Z.

[0067] As in Figure 1 , Figure 2 and Figure 4 As can be seen, the roller blind forming the shielding device 3 includes slats of the curtain 2 forming the roller blind 3. In the assembly configuration of the shielding device 3, the first end 2b of the curtain 2, particularly the upper end of the curtain 2, referred to as the upper end, is fastened to the winding tube 4, i.e., attached to the retaining devices 9 and 23. Furthermore, in the assembly configuration of the shielding device 3, the second end 2c of the curtain 2, particularly the lower end of the curtain 2, referred to as the lower end, is fastened to the bottom rod 8. Therefore, the bottom rod 8 is suspended below the curtain 2 at the second end 2c of the curtain 2.

[0068] Here, the slats forming the curtain 2 are made of textile material.

[0069] As a variation, another material can be used to manufacture the curtain 2.

[0070] The curtain 2 is movable under the action of the electromechanical actuator 11 and can move between a rolled-up configuration (or an upper or rolled-up configuration, or an upper position) and a lower position.

[0071] In any embodiment, in the assembly configuration of the shielding device 3, the first end 2b of the curtain 2 is arranged at the retaining devices 9 and 23, that is, the first end 2b is held above the opening 1.

[0072] In the case of a roller blind, the upper position corresponds to a predetermined upper travel end position, preferably defined by the user.

[0073] The retracted configuration corresponds to the bottom rod 8 of the curtain 2 abutting against the edge of the housing 9 of the roller blind 3, or to the configuration where the bottom rod 8 is close to the retaining devices 9, 23. In particular, when the bottom rod 8 is located above the opening 1, especially above the upper position, the bottom rod 8 can be considered to be close to the retaining devices 9, 23.

[0074] In the case of a roller blind, the lower position corresponds to a predetermined end position of the lower travel, or to the bottom rod 8 of the curtain 2 abutting against the threshold 7 of the opening 1, or to the complete retraction of the curtain 2. The unfolded configuration means that the bottom rod 8 is further away from the retaining devices 9, 23 in the direction of the lower position than in the retracted configuration. In other words, during the unfolding of the curtain between the lower position and the retracted configuration, the curtain 2 is in the unfolded configuration when it is not in the retracted configuration.

[0075] Advantageously, the electric drive unit 5 is controlled by a control unit. The control unit may be, for example, a local control unit 12 or a central control unit 13.

[0076] Advantageously, the local control unit 12 can be connected to the central control unit 13 via a wired or wireless link.

[0077] Advantageously, the central control unit 13 can control the local control unit 12, as well as other similar local control units distributed throughout the building.

[0078] The electric drive unit 5 is preferably configured to execute commands for retracting or rolling up the curtain 2 of the shielding device 3, the commands of which may be issued by the local control unit 12 or the central control unit 13.

[0079] The device 6 includes the local control unit 12, or the central control unit 13, or the local control unit 12 and the central control unit 13.

[0080] Now refer to Figure 3 and Figures 5 to 9 A more detailed description of what belongs to Figure 1 and Figure 2 The electromechanical actuator 11 of device 6.

[0081] The electromechanical actuator 11 includes an electric motor 16. The electric motor 16 includes a rotor and a stator (not shown), which are coaxially positioned about the rotation axis X of the winding tube 4 in the mounting configuration of the electric drive device 5.

[0082] The components for controlling the electromechanical actuator 11, thereby enabling the curtain 2 of the shielding device 3 to move, include at least one electronic control unit 15. This electronic control unit 15 is capable of operating the motor 16 of the electromechanical actuator 11, and in particular, capable of supplying electrical energy to the motor 16.

[0083] Therefore, the electronic control unit 15 specifically controls the motor 16 to open or close the curtain 2 as previously described.

[0084] The components used to control the electromechanical actuator 11 include hardware and / or software components.

[0085] As a non-limiting example, the hardware component may include at least one microcontroller, not shown.

[0086] Advantages, such as Figure 2 and Figure 7 As shown, the electronic control unit 15 also includes a first communication module 27 specifically for receiving control commands. Figure 2 and Figure 7 Only this portion of the electromechanical actuator 11 is shown. The control commands are issued by a command transmitter, such as the local control unit 12 or the central control unit 13, and these commands are intended to control the electric drive unit 5. The first communication module 27 is plugged into and connected to the first electronic board 15a of the electronic control unit 15.

[0087] The first communication module 27 is wireless. Specifically, the electromechanical actuator 11 includes a flexible or semi-rigid wired radio frequency antenna 40, and the first communication module 27 is configured to receive radio control commands via the wired radio frequency antenna 40.

[0088] The wired radio frequency antenna 40 is in the form of a flexible or semi-rigid wire, i.e., wired. Advantageously, the wired radio frequency antenna 40 is made of at least one electrical conductor, such as two electrical conductors forming a coaxial radio frequency antenna.

[0089] Advantageously, the electronic control unit 15, the local control unit 12, and / or the central control unit 13 can communicate with a weather station located inside or outside the building B, and in particular include one or more sensors, for example, if the weather station is located outside the building B, the sensors can be configured to determine temperature, brightness level, or wind speed.

[0090] Advantages, such as Figure 2 As shown, the electronic control unit 15, the local control unit 12, and / or the central control unit 13 can also communicate with the server 28 to control the electromechanical actuator 11 based on data provided remotely via a communication network, particularly an Internet network that can be connected to the server 28.

[0091] The electronic control unit 15 can be controlled from the local control unit 12 and / or the central control unit 13. The local control unit 12 and / or the central control unit 13 are provided with a control keyboard. The control keyboard of the local control unit 12 or the central control unit 13 includes one or more selection elements 14, and optionally one or more display elements 34.

[0092] As a non-limiting example, the selection element may include buttons and / or touch-sensitive keys. The display element may include light-emitting diodes and / or LCD ("Liquid Crystal Display") or TFT ("Thin Film Transistor") displays. The selection element and display element may also be manufactured using a touch screen.

[0093] The local control unit 12 and / or the central control unit 13 include at least one second communication module 36.

[0094] Therefore, the second communication module 36 of the local control unit 12 or the central control unit 13 is configured to transmit control commands, that is, to transmit control commands, particularly via wireless components such as radio components, or via wired components.

[0095] Furthermore, the second communication module 36 of the local control unit 12 or the central control unit 13 can also be configured to receive control commands, i.e., receive control commands, particularly through the same component.

[0096] The second communication module 36 of the local control unit 12 or the central control unit 13 is configured to communicate with the first communication module 27 of the electronic control unit 15, that is, to communicate with the first communication module 27 of the electronic control unit 15.

[0097] Therefore, the second communication module 36 of the local control unit 12 or the central control unit 13 exchanges control commands with the first communication module 27 of the electronic control unit 15 in a one-way or two-way manner.

[0098] Advantageously, the local control unit 12 is a control point, which can be fixed or portable. A fixed control point can be a control box designed to be fixed to a wall of building B, or to the surface of a fixed frame of a window or door. A portable control point can be a remote control, smartphone, or tablet.

[0099] Advantageously, the local control unit 12 and / or the central control unit 13 also include a controller 35.

[0100] The electric drive unit 5, and in particular the electronic control unit 15, is preferably configured to execute control commands for controlling the movement, and in particular the closing and opening, of the curtain 2 of the shielding device 3. These control commands may be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0101] The electric drive unit 5 can be controlled by the user, for example, when it receives a control command corresponding to pressing the selection element 14 or one of the selection elements of the local control unit 12 or the central control unit 13.

[0102] The electric drive unit 5 can also be automatically controlled, for example, by receiving control commands corresponding to at least one signal originating from at least one sensor and / or a clock signal originating from the electronic control unit 15, particularly the microcontroller. The sensor and / or clock can be integrated into the local control unit 12 or the central control unit 13.

[0103] As in Figure 3 and Figure 5 As can be clearly seen, the electromechanical actuator 11 advantageously includes a housing 17, which is particularly tubular. The electric motor 16 is mounted inside the housing 17, especially in the assembly configuration of the electromechanical actuator 11.

[0104] Here, the housing 17 of the electromechanical actuator 11 is cylindrical, and in particular, cylindrical about the rotation axis X. The rotation axis X is also the longitudinal axis of the housing 17.

[0105] As a variation, the housing 17 is elongated along the axis of rotation X, for example, it is parallelepiped in shape.

[0106] In one embodiment, the housing 17 is made of a metallic material.

[0107] The material of the housing of the electromechanical actuator is not limiting and can be different. In particular, it can be a plastic material.

[0108] The shielding device 3 also includes a power supply device 31. The electromechanical actuator 11 is electrically connected to the power supply device 31.

[0109] The power supply device 31 includes at least one main battery 24. The electromechanical actuator 11 is powered by the main battery 24, i.e., it is configured to be powered by the main battery 24.

[0110] Advantageously, the electromechanical actuator 11 includes the main battery 24.

[0111] Therefore, and as in Figure 3 As can be seen, the main battery 24 is arranged inside the housing 17, particularly in the assembly configuration of the electromechanical actuator 11.

[0112] As a variation not shown, the main battery 24 can be arranged in the housing 9 of the shielding device 3. Therefore, the main battery 24 can be arranged inside or outside the housing 9. Alternatively, the main battery 24 can be arranged inside the winding tube 4 while being located outside the casing 17.

[0113] In either embodiment, the main battery 24 is arranged at the retaining device 9, 23, just like the first end 2b of the curtain 2.

[0114] Here, the electromechanical actuator 11 includes a power supply cable 18, which, when the main battery 24 is located outside the housing 17, enables the supply of electrical energy specifically from the main battery 24, and specifically to the electronic control unit 15 and the motor 16. In this case, the free end 182 of the power supply cable 18 is equipped with a connector.

[0115] Here, and as Figure 3 As shown, the main battery 24 is directly electrically connected to the electronic control unit 15 via the power supply cable 18.

[0116] The main battery 24 is rechargeable.

[0117] Advantageously, the main battery 24 includes one or more energy storage elements. The energy storage elements of the main battery 24 may in particular be a rechargeable battery or a rechargeable battery cell.

[0118] Advantageously, the electromechanical actuator 11 includes a charging circuit (not shown) that manages the recharging of the main battery 24 and regulates the current delivered to the main battery for recharging. Therefore, the main battery 24 is protected from currents that may be unsuitable for recharging it.

[0119] Advantageously, the electronic control unit 15 includes a first electronic board 15a and a second electronic board 15b.

[0120] Advantageously, the first electronic board 15a is configured to control the electric motor 16. Furthermore, the second electronic board 15b is specifically configured to enable recharging of the main battery 24, and optionally access the setting and / or configuration functions of the electromechanical actuator 11 via a selection element (not shown) and a display element (not shown).

[0121] Advantageously, the electromechanical actuator 11 also includes a reducer 19 and an output shaft 20.

[0122] Advantageously, the reducer 19 includes at least one reduction stage. The reduction stage may be a planetary gear system.

[0123] The type and number of reduction stages of the reducer are not restrictive.

[0124] Advantageously, the electromechanical actuator 11 also includes a brake 32.

[0125] As a non-limiting example, the brake 32 may be a spring brake, a cam brake, a magnetic brake, or an electromagnetic brake.

[0126] Advantageously, in the assembly configuration of the electromechanical actuator 11, the reducer 19 and optionally the brake 32 are arranged inside the housing 17 of the electromechanical actuator 11.

[0127] Advantageously, the electromechanical actuator 11 may also include a stroke end and / or obstacle detection device (not shown), which may be mechanical or electronic.

[0128] The winding tube 4 is driven to rotate about the rotation axis X and the housing 17 of the electromechanical actuator 11, while being supported by two pivotal connections. The first pivotal connection is formed at a first end of the winding tube 4 by means of a ring (not shown), which is inserted around the first end 17a of the housing 17 of the electromechanical actuator 11. Thus, the ring allows for the formation of a bearing. The second pivotal connection (not shown) is formed at a second end of the winding tube 4 opposite the first end.

[0129] Advantageously, the electromechanical actuator 11 also includes a torque support 21, which may also be referred to as the "head" of the electromechanical actuator 11 or the "fixed point" of the electromechanical actuator 11. In the assembly configuration of the electromechanical actuator 11, the torque support 21 is arranged at the first end 17a of the housing 17 of the electromechanical actuator 11.

[0130] The torque support 21 enables the support of the force applied by the electromechanical actuator 11, particularly ensuring that the force applied by the electromechanical actuator 11 is supported, especially ensuring that the torque applied by the electromechanical actuator 11 is supported, and ensuring that this torque is supported by the structure of the building B. The torque support 21 also advantageously enables the support of the force applied by the winding tube 4, particularly the weight of the winding tube 4, the electromechanical actuator 11, and the curtain 2, and ensures that these forces are supported by the structure of the building B.

[0131] Therefore, the torque support 21 of the electromechanical actuator 11 enables the electromechanical actuator 11 to be fastened to the retaining devices 9, 23, particularly to one of the support members 23 or one of the side plates 10 of the housing 9.

[0132] Advantageously, the torque support 21 protrudes at the first end 17a of the housing 17 of the electromechanical actuator 11, particularly at the end 17a of the housing 17 that receives the ring. In the assembly configuration of the shielding device 3, the ring is configured as a bearing for guiding the rotation of the winding tube 4.

[0133] Advantageously, the torque support 21 of the electromechanical actuator 11 can also enable the first end 17a of the housing 17 to be closed.

[0134] Furthermore, the torque support 21 of the electromechanical actuator 11 is capable of supporting at least a portion of the electronic control unit 15.

[0135] Advantageously, the torque support 21 includes a first part 21a and a second part 21b.

[0136] Advantageously, the first portion 21a of the torque support 21 is configured to interact with the housing 17 of the electromechanical actuator 11, i.e., to interact with the housing 17 of the electromechanical actuator 11, particularly in the assembly configuration of the electromechanical actuator 11. Furthermore, the second portion 21b of the torque support 21 is configured to interact with the retaining devices 9, 23, i.e., to interact with the retaining devices 9, 23, particularly in the assembly configuration of the electromechanical actuator 11 within the shielding device 3.

[0137] Advantageously, the torque support is a single piece. Therefore, making the torque support 21, which includes the first part 21a and the second part 21b, into a single piece allows for improved rigidity of the torque support 21.

[0138] Advantageously, in the assembly configuration of the electromechanical actuator 11, at least a portion of the first part 21a of the torque support 21 is generally cylindrical in shape and is arranged inside the housing 17 of the electromechanical actuator 11.

[0139] Advantageously, at least a portion of the outer diameter Ø212 of the second part 21b of the torque support 21 is larger than the outer diameter Ø17 of the housing 17 of the electromechanical actuator 11.

[0140] Advantageously, the torque support 21 includes a stop 33 configured to interact with the housing 17 at a first end 17a of the housing 17 in the assembly configuration of the electromechanical actuator 11, i.e., it interacts with the housing 17 at the first end 17a of the housing 17 in the assembly configuration.

[0141] Therefore, the stop 33 of the torque support 21 enables the limitation of the depth to which the first portion 21a of the torque support 21 is inserted into the housing 17 along the longitudinal axis X of the housing 17.

[0142] Furthermore, the stop 33 of the torque support 21 defines the first portion 21a and the second portion 21b of the torque support 21 relative to each other.

[0143] Therefore, in the assembly configuration of the electromechanical actuator 11, after the torque support 21 is assembled into the housing 17 up to the stop member 33, only the first part 21a of the torque support 21 is arranged inside the housing 17 of the electromechanical actuator 11.

[0144] Here, the stop 33 of the torque support 21 is made in the form of a shoulder, or more particularly in the form of a ring, especially in a cylindrical shape with a straight generatrix.

[0145] Advantageously, the electronic control unit 15 can be arranged at least partially inside the housing 17 of the electromechanical actuator 11.

[0146] Furthermore, the electronic control unit 15 can be arranged at least partially outside the housing 17 of the electromechanical actuator 11, particularly mounted on one of the two supports 23, on one of the side plates 10 of the housing 9, or in the torque support 21.

[0147] Here, the first electronic board 15a of the electronic control unit 15 is arranged inside the housing 17 of the electromechanical actuator 11. In addition, the second electronic board 15b is arranged inside the torque support 21 of the electromechanical actuator 11.

[0148] Here and as Figure 3 As shown, the torque support 21 includes a cover 22. Furthermore, the second electronic board 15b is disposed inside a receiving portion formed between the second portion 21b of the torque support 21 and the cover 22.

[0149] Advantageously, the torque support 21 includes at least one button and a power supply connector, such as a connector according to the USB (Universal Serial Bus) standard, preferably a USB Type-C connector not shown, which enables the electromechanical actuator 11 to be connected to an external power supply.

[0150] The button or these buttons enable the electromechanical actuator 11 to be adjusted through one or more configuration modes, one or more control units 12, 13 to be paired with the electromechanical actuator 11, one or more parameters (e.g., end-of-stroke position), one or more paired control units 12, 13 to be reset, or the movement of the curtain 2 to be controlled.

[0151] Here, the torque support 21 includes only one button.

[0152] The number of buttons on the torque support is not limited and can vary. In particular, it can be greater than or equal to two.

[0153] Advantageously, the torque support 21 includes at least one display device (not shown) to allow visual indication, such as the charging status of the main battery 24.

[0154] Advantageously, the display device includes at least one illumination source (not shown), particularly a light-emitting diode, mounted on the second electronic board 15b, and optionally includes a transparent or translucent cover and / or light guide to allow light emitted from the illumination source to pass through.

[0155] Here, the torque support 21 includes only one display device.

[0156] The number of display devices is not limited and can be different. In particular, it can be greater than or equal to two.

[0157] Advantageously, the output shaft 20 of the electromechanical actuator 11 is arranged inside the winding tube 4 and at least partially outside the housing 17 of the electromechanical actuator 11.

[0158] Here, one end of the output shaft 20 protrudes relative to the housing 17 of the electromechanical actuator 11, particularly relative to the second end 17b of the housing 17 opposite to the first end 17a.

[0159] Advantageously, the output shaft 20 of the electromechanical actuator 11 is configured to rotatably drive a connecting element (not shown) connected to the winding tube 4. The connecting element is made in the form of a wheel.

[0160] During startup of the electromechanical actuator 11, the motor 16 and the reducer 19 rotatably drive the output shaft 20. Furthermore, the output shaft 20 of the electromechanical actuator 11 rotatably drives the winding tube 4 via the connecting element.

[0161] Therefore, the winding tube 4 rotates to drive the curtain 2 of the shielding device 3 to open or close the opening 1.

[0162] The connection between the wired radio frequency antenna 40 and the first communication module 27 will now be described in more detail, the connection being... Figure 5 , Figure 6 , Figure 7 and Figure 8 As can be seen in the text.

[0163] The wired radio frequency antenna 40 includes an antenna cable 41 with a circular cross-section, the antenna cable including a first end 42, a second free end 43, a base 44, and a free portion 46 electrically connected to the communication module 27. The base 44 extends from the first end 42 to the free portion 46, and the free portion 46 extends from the base 44 to the free end 43. Once the electromechanical actuator 11 is assembled, the base 44 is enclosed in the housing 17, while the free portion 46 extends out of the housing 17.

[0164] The first end 42 includes a connector 47, which is plugged into and connected to a first surface 60a of the first electronic board 15a. The first communication module 27 is connected to the wired radio frequency antenna 40 via the first electronic board 15a and receives control commands received by the wired radio frequency antenna 40.

[0165] 60b represents the second surface of the first electronic board 15a that is opposite to the first surface 60a.

[0166] The electromechanical actuator 11 further includes a guide 48, which includes a tubular body 49. The tubular body 49 includes a conduit 50 that connects two opposing ends 491 and 492 of the tubular body 49, and the conduit has a straight portion 51 on the side of the end 491 and an arcuate portion 52 on the side of the end 492.

[0167] The tubular body 49 is formed by a plurality of relatively large-diameter segments 493 and a plurality of connecting portions 494, each connecting portion connecting two segments 493. Therefore, the body 49 has a certain rigidity at the segments 493, which allows the trajectory of the antenna cable 41 between the ends 491 and 492 to be defined. The body 49 also has a certain flexibility at the connecting portions 494, which allows it to be elastically deformed during the assembly of the electromechanical actuator 11. Furthermore, the tubular body 49 includes a ring 495 that, during the assembly of the electromechanical actuator 11, can abut against the torque support 21, or abut against a groove in the torque support 21 that interacts with the ring 495, thereby enabling the torque support 21 to provide axial stop to the guide member 48.

[0168] The guide 48 further includes a first enlarged portion 53 and a second enlarged portion 54, which extend completely around the tubular body 49 in the intermediate region between the ends 491 and 492. The enlarged portions 53 and 54 are positioned on the arcuate portion 52 of the tubular body 49 on one side of the first surface 60a and the second surface 60b of the first electronic board 15a, respectively. The first enlarged portion 53 defines a first profile 55, and the second enlarged portion 54 defines a second profile 56, which are identical, i.e., coincident if superimposed in the same plane. The enlarged portions 53 and 54 define a channel 57 between them around the tubular body 49.

[0169] The guide 48 receives the base 44 of the antenna cable 41 in the conduit 50, the arcuate portion 52 is oriented toward the first end 42, and the straight portion 51 is oriented toward the second free end 43, such that the antenna cable 41 held by the guide 48 from the first end 42 toward the second free end 43 forms a portion 442 with a curved trajectory and then forms a portion 441 with a straight trajectory.

[0170] The guide 48 is fastened to the electronic board 15a, which is inserted into the channel 57. Advantageously, the electronic board 15a has an opening O15, here a slot, which passes through the electronic board 15a along the axis of movement Z. The edge 15c of the opening O15 has a smaller diameter than the diameters of the contours 55 and 56, such that the edge 15c is received in the channel 57, and the enlarged portions 53 and 54 abut against the corresponding surfaces 60b and 60a of the electronic board 15a, respectively, thereby making it possible for the guide 48 to be fastened to the electronic board 15a. In other words, the guide 48 contacts and is directly fastened to the electronic board 15a, i.e., the fastening between the guide 48 and the electronic board 15a is not achieved by an intermediate element different from the guide 48 and the electronic board 15a. The guide 48 and the antenna cable pass through the opening O15 and through the electronic board 15a.

[0171] Therefore, the space inside the torque support 21 and the housing 17 is optimized. In fact, the presence of the guide 48, which is accommodated within the opening O15, does not increase the space occupied by the electronic board 15a. Furthermore, the presence of the opening O15 allows for the acquisition of an antenna cable 41 trajectory contained in a plane perpendicular to the electronic board 15a, so as to avoid twisting and damaging the antenna cable 41.

[0172] Advantageously, the guide is made of a synthetic material. The material of the guide 48 is not limiting. It can be a polymeric plastic material, preferably an elastomer, and the guide 48 is therefore electrically insulating.

[0173] In fact, the guide 48 is advantageously molded around the base 44.

[0174] During the assembly of the electromechanical actuator 11, the antenna cable 41 (whose base 44 is accommodated in the conduit 50 of the guide 48) is as follows: Figure 9 The antenna cable 41 is inserted into the torque support 21 as shown. Then, the antenna cable 41 is freely translatable relative to the torque support along the longitudinal axis X of the housing 17. The guide 48 is then secured to the electronic board 15a by inserting the edge 15c of the opening O15 into the channel 57. The antenna cable 41 then passes through the electronic board 15a, with its first end 42 positioned on one side of the first surface 60a of the electronic board 15a, and the portion 441 with a straight trajectory positioned on one side of the second surface 60b of the electronic board 15a. The antenna cable 41 is connected to the first surface 60a of the electronic board 15a by means of the connector 47. The electronic board 15a, connected to the antenna cable 41, is then inserted into the housing 17, positioned parallel to the longitudinal axis X of the housing 17. The torque support 21 is then secured to the housing 17, for example by a snap-fit, thereby enclosing the guide 48 and the base 44 within the housing 17. Then, the antenna cable 41 is tensioned by pulling on the free end 43, while the first end 42 remains connected to the electronic board 15a, and the base 44 is held by the guide 48, so that the portion 441 with a straight trajectory is tensioned advantageously parallel to the longitudinal axis X of the housing 17.

[0175] Advantageous, and as Figure 8 As shown, the electromechanical actuator 11 includes a clamping system 62 that is fastened to the torque support 21 and configured to hold the portion 441 with a linear trajectory in place by clamping. Advantageously, once the antenna cable 41 is tensioned, the clamping system 62 clamps around the portion 441 with a linear trajectory to prevent translation of the antenna cable 41 relative to the torque support 21 along the longitudinal axis X of the housing 17, and to keep the portion 441 with a linear trajectory parallel to the longitudinal axis X of the housing 17 and spaced apart from the first electronic board 15a under tension.

[0176] Once the electromechanical actuator 11 is assembled, the base 44 is held by the guide 48 and advantageously by the clamping system 62 to be spaced apart from the electronic board 15a and the various electronic components of the electromechanical actuator 11, particularly from the power supply cable 18, such that the air separating the electronic board 15a and the various electronic components thereon from the antenna cable 41 on the other hand insulates the antenna cable 41 from the electronic board 15a and the various electronic components, and prevents or greatly reduces electromagnetic interference.

[0177] As a variant not shown, the clamping system 62 is configured to hold the straight portion 51 of the tubular body 49 in place by clamping, and to hold the portion 441 having a straight trajectory in place by means of the straight portion 51.

[0178] exist Figure 10 In the second embodiment shown, elements similar to those in the first embodiment bear the same reference numerals. If the reference numerals are in... Figure 10 Shown in the specification but not mentioned in the instruction manual, or mentioned in the instruction manual but not mentioned in the specification. Figure 10 As shown in the figures, each reference numeral refers to an element having the same reference numerals as in the first embodiment. The following description primarily focuses on the differences between the second and first embodiments.

[0179] In the second embodiment, the guide 48 is made in the form of an attachment 58, which is separate from and assembled with the radio frequency antenna 40. The tubular body 49 of the attachment 58 is radially truncated such that the base 44 is radially inserted into the conduit 50 defined by the tubular body.

[0180] Advantageously, the guide 48 includes two grippers 59, which are respectively disposed at one end 491 or 492 of the body 49, outside the conduit 50. When the antenna cable 41 is received in the conduit 50, the grippers 59 block the base 44 extending beyond each end of the conduit 50 to prevent the antenna cable 41 from being removed from the conduit 50, particularly in a lateral direction relative to the main direction of the conduit 50.

[0181] Advantageous, such as in Figure 10 As can be seen, the guide member 48 has a protrusion 61 disposed in the conduit 50. The protrusion 61 is oriented toward the interior of the conduit 50 and locally reduces the diameter of the conduit 50 so as to wedge the base 44 when the base is received in the conduit 50, thereby preventing the antenna cable 41 from sliding in the conduit 50.

[0182] It will be apparent to those skilled in the art that the “parallel” characteristic characterizing the position of the electronic board 15 relative to the longitudinal axis X and the position of the portion 441 with the straight trajectory relative to the longitudinal axis X must be interpreted as “approximately parallel”, since intentionally implemented or minor deviations in parallelism resulting from the assembly or manufacturing process will have little or no effect on the desired result.

[0183] Any feature described above with respect to one embodiment or variation is applicable to other embodiments and variations described above, provided that it is technically possible.

Claims

1. An electromechanical actuator (11) for a shielding device, the electromechanical actuator (11) comprising: - A housing (17) extending along a longitudinal axis (X); - Torque support (21), which is at least partially installed inside the housing (17), and the housing (17) and the torque support (21) are fixedly attached to each other; - An electric motor (16), which is installed inside the housing (17); as well as - An electronic control unit (15) for controlling the electric motor (16), the electronic control unit comprising: At least one electronic board (15a) is mounted inside the housing (17). The radio frequency communication module (27) assembled on the electronic board (15a), and A wired radio frequency antenna (40) extends through the torque support (21) and includes a first end (42) and a second end (43). The first end is electrically connected to the radio frequency communication module (27) on a first surface (60a) of the electronic board (15a), and the second end is disposed outside the housing (17). The wired radio frequency antenna (40) includes a base (44) extending from the first end (42) to the torque support (21). The electromechanical actuator (11) is characterized in that it further includes a guide (48) fastened to the electronic board (15a), the guide (48) including a conduit (50) in which an antenna cable (41) is housed, and the conduit holds the base (44) of the antenna cable (41) such that the base (44) forms a portion (442) with a curved trajectory from a first end (42) of the antenna cable (41) toward a second end (43) and then forms a portion (441) with a straight trajectory toward the torque support (21).

2. The electromechanical actuator (11) according to claim 1, wherein the electronic board (15a) is positioned parallel to the longitudinal axis (X).

3. The electromechanical actuator (11) according to any one of the preceding claims, wherein the portion (441) of the base (44) having a straight trajectory extends parallel to the electronic plate (15a) and spaced apart from the electronic plate.

4. The electromechanical actuator (11) according to any one of the preceding claims, wherein the electromechanical actuator further comprises a clamping system (62) fastened to the torque support (21), the portion (441) having a linear trajectory being fastened to the clamping system by clamping of the clamping system (62).

5. The electromechanical actuator (11) according to any one of the preceding claims, wherein the base (44) and the guide (48) pass through the electronic plate (15a).

6. The electromechanical actuator (11) according to claim 5, wherein the guide (48) is fastened to the electronic plate (15a) at the opening (O15) of the electronic plate (15a), and the guide (48) and the base (44) pass through the opening and through the electronic plate (15a).

7. The electromechanical actuator (11) according to any one of the preceding claims, wherein the guide (48) is molded around the base (44).

8. The electromechanical actuator (11) according to any one of claims 1 to 6, wherein the guide (48) is an attachment (58) that is separate from and assembled with the wired radio frequency antenna (40).

9. The electromechanical actuator (11) according to the preceding claim, wherein the guide (48) includes a protrusion (61) disposed in the conduit (50) of the attachment (58) and configured to prevent the antenna cable (41) from sliding in the conduit (50).

10. The electromechanical actuator (11) according to any one of claims 8 and 9, wherein the guide (48) includes at least one gripper (59) disposed at an end (491, 492) of the body (49) of the guide (48) and outside the conduit (50), configured to prevent the antenna cable (41) from being removed from the conduit (50).

11. The electromechanical actuator (11) according to any one of the preceding claims, wherein the guide (48) is made of a polymeric plastic material, particularly an elastomer.

12. A shielding device comprising a curtain (2) and an electromechanical actuator (11) according to any one of the preceding claims, the electromechanical actuator (11) being configured to drive the curtain (2) between a retracted configuration and an extended configuration.

13. A method for assembling an electromechanical actuator (11) according to any one of claims 1 to 11, the method comprising: - Insert the wired radio frequency antenna (40) through the torque support (21), with the base (44) of the wired radio frequency antenna (40) housed in the conduit (50) of the guide (48); - When the antenna cable (41) is housed in the conduit (50), the guide (48) is fastened to the electronic board (15a); - When the radio frequency communication module (27) has been assembled on the electronic board (15a), the first end (42) of the wired radio frequency antenna is connected to the radio frequency communication module (27). - Secure the housing (17) and the torque support (21) together so that the electronic board (15a) is installed inside the housing (17); - Pull the second end of the antenna cable (41) until the base (44) forms a straight track (441) in addition to the portion (442) that forms a curved track, while the guide holds the base (44).

14. The method of claim 13, wherein the electromechanical actuator (11) is the electromechanical actuator of claim 4, the method comprising securing the portion (441) having a linear trajectory to the clamping system (62) fastened to the torque support by clamping, so as to keep the portion (441) having a linear trajectory taut.

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