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

Abstract

The radio-frequency antenna extends through the torque support and comprises a first end (42), electrically connected to the radio-frequency communication module on a first face (60a) of the circuit board and a second end (43) arranged outside the casing (17). The electromechanical actuator also comprises a guide (48) fastened to the circuit board, the guide comprising a duct (50), in which the antenna cable (41) is housed, and which holds the antenna cable such that it forms a portion (442) of curved path and then a portion (441) of straight path.

Description

[0001] TITLE: Electromechanical actuator, occultation device comprising such an electromechanical actuator and method of assembling such an electromechanical actuator

[0002] The present invention relates to an electromechanical actuator, a shading device comprising such an electromechanical actuator, and a method for assembling such an electromechanical actuator.

[0003] In general, the present invention relates to the field of occultation devices comprising a motorized drive device setting a screen in motion.

[0004] A motorized drive device comprises an electromechanical actuator of a movable closing, concealing or sun protection element, such as a blind or any other equivalent material, hereinafter called a screen.

[0005] US 2008 / 212294 A1, US 2020 / 399959 A, EP 4 039 938 A1 and EP 4 195 489 A1 disclose known electromechanical actuators.

[0006] US 9,844,149 B2 and US 9,742,054 B2 disclose antenna guides, in another technical field.

[0007] Electromechanical actuators of a concealment device are already known, comprising a housing, an electric motor mounted inside the housing, a torque support mounted partly inside the housing, and an electronic control unit mounted partly inside the housing. The electronic control unit comprises an electronic card, a radio frequency communication module, and a wire radio frequency antenna. The wire radio frequency antenna, which must both be connected to the radio frequency communication module and protrude outside the housing, comprises an antenna portion extending freely inside the housing.

[0008] However, once the electromechanical actuator is assembled, the trajectory of the antenna portion extending freely inside the casing is not controlled, which is likely to alter the radiofrequency performance of the wired radiofrequency antenna. Indeed, this performance depends on the trajectory and the length of the antenna portion extending inside the casing. The radiofrequency performance of the wired radiofrequency antenna is therefore not repeatable during the manufacturing process of the electromechanical actuator, from one electromechanical actuator to another. In addition, the uncontrolled trajectory of the antenna portion extending inside the casing can cause electromagnetic interference with other electronic components of the electronic control unit, in particular with power electronic components of the electronic board.In addition, the uncontrolled path of the antenna portion extending inside the housing increases the risk that the wired radiofrequency antenna will be accidentally disconnected from the communication module, during assembly or during a maintenance operation. With the wired radiofrequency antenna thus disconnected, the radiofrequency communication of the electromechanical actuator becomes inoperative.

[0009] The aim of the invention is then to propose an electromechanical actuator which controls the trajectory of the antenna portion extending inside the casing.

[0010] To this end, the invention relates to an electromechanical actuator for a concealment device, the electromechanical actuator comprising:

[0011] - a casing, extending along a longitudinal axis;

[0012] - a torque support, mounted, at least in part, inside the housing, the housing and the torque support being fixedly attached to each other;

[0013] - an electric motor, mounted inside the housing; and

[0014] - an electronic control unit for controlling the electric motor, comprising: o at least one electronic card, the electronic card being mounted inside the casing, o a radiofrequency communication module assembled on the electronic card, and o a wire radiofrequency antenna, the radiofrequency antenna extending through the torque support and comprising a first end electrically connected to the radiofrequency communication module on a first face of the electronic card, and a second end arranged outside the casing, the radiofrequency antenna comprising a base portion extending from the first end to the torque support;

[0015] According to the invention, the electromechanical actuator further comprises a guide fixed to the electronic card, the guide comprising a conduit, in which the antenna cable is housed, and which holds the base portion of the antenna cable in such a way that the base portion forms, going from the first end towards the second end of the antenna cable, a part with a curved trajectory from the first face of the electronic card then a part with a rectilinear trajectory in the direction of the torque support.

[0016] By virtue of the invention, in particular by virtue of the presence of the guide, the shape and arrangement of the base portion of the wire radiofrequency antenna is controlled in the sense that the radiofrequency antenna is held by the guide. For the purposes of the present invention, the trajectory of an antenna portion is the shape that this antenna portion takes and which defines its position and orientation at any point between its two ends. The trajectory of the base portion of the wire radiofrequency antenna extending inside the casing is therefore defined and controlled by the guide. Thus the radiofrequency performance of the wire radiofrequency antenna is controlled and reproducible during the manufacturing process of the electromechanical actuator.In addition, the guide ensures that the wired radiofrequency antenna is held in the housing and thus prevents the wired radiofrequency antenna from accidentally disconnecting from the communication module, particularly during assembly of the electromechanical actuator.

[0017] According to other advantageous aspects of the invention, the electromechanical actuator comprises one or more of the following characteristics, taken individually or in all technically possible combinations:

[0018] - the electronic card is positioned parallel to the longitudinal axis.

[0019] - the straight-path part of the base portion extends parallel to and at a distance from the electronic card.

[0020] - the electromechanical actuator comprises a clamping system, fixed to the torque support, and to which the part with a rectilinear trajectory is secured by clamping the clamping system.

[0021] - the base portion and the guide pass through the electronic card.

[0022] - the guide is attached to the electronic board at an opening in the electronic board, through which the guide and the base portion pass through the electronic board.

[0023] - the guide is overmolded around the base portion.

[0024] - the guide is an added part, separate from the radiofrequency antenna, and assembled with the radiofrequency antenna.

[0025] - the guide includes protrusions, arranged in the conduit of the insert and configured to prevent sliding of the antenna cable in the conduit.

[0026] - the guide comprises at least one jaw, arranged at one end of a body of the guide, outside the conduit, configured to prevent extraction of the antenna cable from the conduit.

[0027] - the guide is made of polymer plastic, particularly elastomer.

[0028] The invention also relates to a screening device comprising a screen and an electromechanical actuator according to any one of the preceding claims, the electromechanical actuator being configured to drive the screen between a retracted configuration and a deployed configuration. The invention also relates to a method for assembling an electromechanical actuator as defined above, the method successively comprising:

[0029] - insertion of the radio frequency antenna through the torque support, the radio frequency antenna;

[0030] - fixing the guide on the electronic card, while the antenna cable is housed in the conduit;

[0031] - connection of the first end of the radio frequency antenna to the communication module, while the communication module is already assembled on the electronic board;

[0032] - fixing the housing and the torque support to each other, so that the electronic card is mounted inside the housing;

[0033] - traction on the second end of the antenna cable until, while the guide holds the base portion, the base portion forms, in addition to the part with a curved trajectory, the part with a straight trajectory.

[0034] Advantageously, a method as defined above for assembling an electromechanical actuator according to the invention comprising a clamping system, comprises securing the rectilinear trajectory part to the clamping system fixed to the torque support, by clamping the clamping system so as to maintain the rectilinear trajectory part in tension.

[0035] The invention will appear more clearly on reading the description which follows, given solely by way of non-limiting example, and made with reference to the drawings in which:

[0036] [Fig 1] Figure 1 is a schematic cross-sectional view of an installation comprising a concealment device according to a first embodiment of the invention;

[0037] [Fig 2] Figure 2 is a schematic perspective view of the installation illustrated in Figure 1;

[0038] [Fig 3] Figure 3 is a schematic sectional view of an electromechanical actuator belonging to the installation illustrated in Figures 1 and 2, along a sectional plane passing through an axis of rotation of an output shaft of the electromechanical actuator;

[0039] [Fig 4] Figure 4 is a partial schematic front view of a portion of the installation illustrated in Figures 1 and 2, with a screen of the installation in a deployed configuration. [Fig 5] Figure 5 is a perspective view of the electromechanical actuator of Figure [Fig 6] Figure 6 is a perspective view of the electromechanical actuator of Figures 3 and 5 without its casing and without a power cable;

[0040] [Fig 7] Figure 7 is an enlarged view of box VII of Figure 6;

[0041] [Fig 8] Figure 8 is a perspective view of the electromechanical actuator of Figures 3 and 5 to 7 without its torque support;

[0042] [Fig 9] Figure 9 is a perspective view of the electromechanical actuator of Figures 3 and 5 to 8, during a step of a method of manufacturing this electromechanical actuator, where an antenna cable is inserted through a cable support; and

[0043] [Fig 10] Figure 10 is a partial view of the interior of an electromechanical actuator according to a second embodiment of the invention.

[0044] Firstly, with reference to figures 1 and 2, an installation 6 is described, comprising a closing, concealing or solar protection device 3 according to a first embodiment of the invention, installed in a building B comprising an opening 1, window or door. This installation 6 is equipped with a screen 2 belonging to the closing, concealing or solar protection device 3, in particular a motorized blind.

[0045] The closing, concealing or sun protection device 3 is hereinafter called the “concealing device”. The concealing device 3 comprises the screen 2.

[0046] The blackout device 3 may comprise a blind, in particular a canvas, roller blind, a pleated blind or a slatted blind. The present invention applies to all types of blackout device. The following example corresponds to a roller blind.

[0047] The occulting device 3 comprises a winding tube 4 and a motorized drive device 5. The motorized drive device 5 comprises an electromechanical actuator 11 illustrated in Figures 3 and 5 to 9.

[0048] The screen 2 of the occulting device 3 is wound onto the winding tube 4 driven by the motorized drive device 5 or unwound from the winding tube 4.

[0049] The screen 2 extends along a Z displacement axis when it is unrolled. The Z axis is also the Z displacement axis of the screen under the effect of the motorized drive device 5. The Z displacement axis is vertical in the example.

[0050] The screen 2 of the occultation device 3 is a closing, occultation and / or sun protection screen, winding and unwinding around the winding tube 4, the inner diameter of which is greater 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 occultation device 3.

[0051] Advantageously, the concealing device 3 comprises a holding device 9. Advantageously, the holding device 9, 23 may comprise two supports 23. A support 23 is arranged at each end of the winding tube 4, in an assembled configuration of the concealing device 3.

[0052] Thus, the winding tube 4 is held by means of the supports 23. Only one of the supports 23 is visible in Figure 1. The supports 23 make it possible to mechanically connect the occultation device 3 to the structure of the building B. In the example, the supports 23 make it possible to mechanically connect the occultation device 3 to a ceiling of the building B. Alternatively, the supports 23 make it possible to mechanically connect the occultation device 3 to a wall of the building B located above the opening 1, or to the uprights of the window or door forming the opening 1.

[0053] Advantageously, the holding device 9, 23 may comprise a box 9. Furthermore, the winding tube 4 and at least part of the screen 2 are housed inside the box 9, in the assembled configuration of the occulting device 3.

[0054] Generally, the box 9 is arranged above the opening 1, or in the upper part of the opening 1.

[0055] Here and as illustrated in figure 1, the supports 23 are also housed inside the box 9.

[0056] Advantageously, the box 9 comprises two cheeks 10, as illustrated in FIG. 2. A cheek 10 is arranged at each end of the box 9, in the assembled configuration of the concealment device 3.

[0057] Alternatively, shown in Figure 2, the winding tube 4 is held by means of the box 9, in particular by means of the cheeks 10 of the box 9, without using supports, such as the supports 23 mentioned above.

[0058] The electromechanical actuator 11 is, for example, of the tubular type. This makes it possible to rotate the winding tube 4 around an axis of rotation X, so as to unwind or wind the screen 2 of the occulting device 3. The axis of rotation X is also the longitudinal axis of the electromechanical actuator 11.

[0059] Thus, the screen 2 can be rolled up and unrolled on the winding tube 4. In the assembled state, the electromechanical actuator 11 is inserted into the winding tube 4.

[0060] The occulting device 3 further comprises a weighted load bar 8 for exerting tension on the screen 2. The tension generated by the load bar 8 on the screen 2 is directed along the movement axis Z.

[0061] As visible in Figures 1, 2 and 4, the roller blind, which forms the occultation device 3, comprises a fabric, forming the screen 2 of the roller blind 3. A first end 2b of the screen 2, in particular the upper end of the screen 2, called the high end, in the assembled configuration of the occultation device 3, is fixed to the winding tube 4, in other words is attached to the holding device 9, 23. In addition, a second end 2c of the screen 2, in particular the lower end of the screen 2, called the low end, in the assembled configuration of the occultation device 3, is fixed to the load bar 8. The load bar 8 is thus suspended under the screen 2 at its second end 2c.

[0062] Here, the canvas forming the screen 2 is made from a textile material.

[0063] Alternatively, another material may be used to make the screen 2.

[0064] The screen 2 is movable under the action of the electromechanical actuator 11 and can be moved between a rolled-up configuration, or a high or retracted configuration, or a high position, and a low position.

[0065] Whatever the embodiment, the first end 2b of the screen 2 is arranged at the level of the holding device 9, 23, in the sense that this first end 2b remains above the opening 1 in the assembled configuration of the concealing device 3.

[0066] In the case of a roller blind, the upper position corresponds to a predetermined upper end position, preferably defined by the user.

[0067] A retracted configuration corresponds to the loading bar 8 of the screen 2 resting against an edge of a box 9 of the roller blind 3, or to a configuration where the loading bar 8 is close to the holding device 9, 23. It may, in particular, be considered that the loading bar 8 is close to the holding device 9, 23 when the loading bar 8 is located above the opening 1 and in particular above the high position.

[0068] In the case of a roller blind, the low position corresponds to a predetermined low end-of-travel position, or to the support of the load bar 8 of the screen 2 against a threshold 7 of the opening 1, or even to the complete unrolling of the screen 2. We speak of deployed configuration for a configuration where the load bar 8 is further from the holding device 9, 23 in the direction of the low position than in the retracted configuration. In other words, on the deployment stroke of the screen between the low position and the retracted configuration, when the screen 2 is not in the retracted configuration, it is in the deployed configuration.

[0069] Advantageously, the motorized drive device 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.

[0070] Advantageously, the local control unit 12 can be connected, by wired or wireless connection, to the central control unit 13. 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.

[0071] The motorized drive device 5 is preferably configured to execute the commands for unwinding or rolling up the screen 2 of the occulting device 3, which can be issued, in particular, by the local control unit 12 or the central control unit 13.

[0072] The installation 6 comprises either the local control unit 12, or the central control unit 13, or the local control unit 12 and the central control unit 13.

[0073] The electromechanical actuator 11 belonging to the installation 6 of Figures 1 and 2 will now be described in more detail and with reference to Figures 3 and 5 to 9.

[0074] The electromechanical actuator 11 comprises an electric motor 16. The electric motor 16 comprises a rotor and a stator, not shown, positioned coaxially around the axis of rotation X of the winding tube 4 in the mounted configuration of the motorized drive device 5.

[0075] Means for controlling the electromechanical actuator 11, allowing the screen 2 of the occulting device 3 to be moved, comprise at least one electronic control unit 15. This electronic control unit 15 is capable of putting the electric motor 16 of the electromechanical actuator 11 into operation, and, in particular, of allowing the electric motor 16 to be supplied with electrical energy.

[0076] Thus, the electronic control unit 15 controls, in particular, the electric motor 16, so as to open or close the screen 2, as described previously.

[0077] The control means of the electromechanical actuator 11 comprise hardware and / or software means.

[0078] By way of non-limiting example, the hardware means may include at least one microcontroller, not shown.

[0079] Advantageously, the electronic control unit 15 further comprises a first communication module 27, as illustrated in FIGS. 2 and 7, where only this part of the electromechanical actuator 11 is shown, in particular for receiving control orders, the control orders being emitted by an order transmitter, such as the local control unit 12 or the central control unit 13, these orders being intended to control the motorized drive device 5. The first communication module 27 is plugged in and connected to a first electronic card 15a of the electronic control unit 15. The first communication module 27 is of the wireless type. In particular, the electromechanical actuator 11 comprises a flexible or semi-rigid wired radiofrequency antenna 40 and the first communication module 27 is configured to receive radio control orders through the wired radiofrequency antenna 40.

[0080] The wire radiofrequency antenna 40 is in the form of a flexible or semi-rigid wire, i.e. wire. Advantageously, the wire radiofrequency antenna 40 is made up of at least one electrical conductor, for example two electrical conductors forming a coaxial type radiofrequency antenna.

[0081] Advantageously, the electronic control unit 15, the local control unit 12 and / or the central control unit 13 can be in communication with a weather station arranged inside the building B or remote outside the building B, including, in particular, one or more sensors which can be configured to determine, for example, a temperature, a brightness, or even a wind speed, in the case where the weather station is remote outside the building B.

[0082] Advantageously, the electronic control unit 15, the local control unit 12 and / or the central control unit 13 can also be in communication with a server 28, as illustrated in FIG. 2, so as to control the electromechanical actuator 11 according to data made available remotely via a communication network, in particular an internet network which can be connected to the server 28.

[0083] The electronic control unit 15 can be controlled from the local control unit 12 and / or central control unit 13. The local control unit 12 and / or central control unit 13 is provided with a control keyboard. The control keyboard of the local control unit 12 or central control unit 13 comprises one or more selection elements 14 and, optionally, one or more display elements 34.

[0084] By way of non-limiting examples, the selection elements may comprise push buttons and / or sensitive keys. The display elements may comprise light-emitting diodes and / or an LCD (acronym for the English term “Liquid Crystal Display”) or TFT (acronym for the English term “Thin Film Transistor”) display. The selection and display elements may also be implemented using a touch screen.

[0085] The local control unit 12 and / or central control unit 13 comprises at least one second communication module 36.

[0086] Thus, the second communication module 36 of the local 12 or central 13 control unit is configured to transmit, in other words, issue control commands, in particular by wireless means, for example radioelectric, or by wired means. Furthermore, the second communication module 36 of the local 12 or central 13 control unit can also be configured to receive, in other words, receive control commands, in particular via the same means.

[0087] The second communication module 36 of the local control unit 12 or central control unit 13 is configured to communicate, in other words communicates, with the first communication module 27 of the electronic control unit 15.

[0088] Thus, the second communication module 36 of the local control unit 12 or central control unit 13 exchanges control orders with the first communication module 27 of the electronic control unit 15, either unidirectionally or bidirectionally.

[0089] Advantageously, the local control unit 12 is a control point, which may be fixed or mobile. A fixed control point may be a control box intended to be fixed on a facade of the wall of the building B or on a face of a fixed frame of a window or a door. A mobile control point may be a remote control, a smartphone or a tablet.

[0090] Advantageously, the local control unit 12 and / or central control unit 13 further comprises a controller 35.

[0091] The motorized drive device 5, in particular the electronic control unit 15, is preferably configured to execute movement control commands, in particular closing and opening, of the screen 2 of the occulting device 3. These control commands can be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0092] The motorized drive device 5 can be controlled by the user, for example by receiving a control command corresponding to pressing the or one of the selection elements 14 of the local 12 or central 13 control unit.

[0093] The motorized drive device 5 can also be controlled automatically, for example by receiving a control command corresponding to at least one signal from at least one sensor and / or a signal from a clock of the electronic control unit 15, in particular from the microcontroller. The sensor and / or the clock can be integrated into the local control unit 12 or the central control unit 13.

[0094] As clearly visible in Figures 3 and 5, the electromechanical actuator 11 advantageously comprises a casing 17, in particular a tubular casing. The electric motor 16 is mounted inside the casing 17, in particular in an assembled configuration of the electromechanical actuator 11. Here, the casing 17 of the electromechanical actuator 11 is cylindrical in shape, in particular of revolution around the axis of rotation X. The axis of rotation X is also a longitudinal axis of the casing 17.

[0095] Alternatively, the casing 17 is elongated along the axis of rotation X and is, for example, parallelepipedal.

[0096] In an exemplary embodiment, the casing 17 is made of a metallic material.

[0097] The material of the electromechanical actuator casing is not limiting and may be different. In particular, it may be a plastic material.

[0098] The occulting device 3 further comprises an electrical energy supply device 31. The electromechanical actuator 11 is electrically connected to the electrical energy supply device 31.

[0099] The electrical power supply device 31 comprises at least one main battery 24. The electromechanical actuator 11 is supplied with electrical power, in other words is configured to be supplied with electrical power, by means of the main battery 24.

[0100] Advantageously, the electromechanical actuator 11 comprises the main battery 24.

[0101] Thus, and as visible in Figure 3, the main battery 24 is arranged inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0102] Alternatively, not shown, the main battery 24 can be arranged at the level of the box 9 of the concealment device 3. The main battery 24 can thus be arranged inside or outside the box 9. The main battery 24 can also be arranged inside the winding tube 4, while being outside the casing 17.

[0103] Whatever the embodiment, the main battery 24 is arranged at the level of the holding device 9, 23, like the first end 2b of the screen 2.

[0104] Here, the electromechanical actuator 11 comprises an electrical power supply cable 18 allowing it to be supplied with electrical energy, in particular from the electronic control unit 15 and the electric motor 16, in particular from the main battery 24 when it is located outside the casing 17. In this case, a free end 182 of the electrical power supply cable 18 is equipped with a connection plug.

[0105] Here and as illustrated in Figure 3, the main battery 24 is electrically connected directly to the electronic control unit 15, by the electrical power supply cable 18.

[0106] The main battery 24 is of the rechargeable type. Advantageously, the main battery 24 comprises one or more energy storage elements. The energy storage elements of the main battery 24 may be, in particular, rechargeable accumulators or even rechargeable batteries.

[0107] Advantageously, the electromechanical actuator 11 comprises a charging circuit, not shown, which manages the recharging of the main battery 24 and conditions the electric current delivered to the main battery for its recharging. Thus, the main battery 24 is protected from possible electric currents unsuitable for its recharging.

[0108] Advantageously, the electronic control unit 15 comprises a first electronic card 15a and a second electronic card 15b.

[0109] Advantageously, the first electronic card 15a is configured to control the electric motor 16. In addition, the second electronic card 15b is configured to, in particular, allow the main battery 24 to be recharged and, possibly, to access parameterization and / or configuration functions of the electromechanical actuator 11, by means of selection and, possibly, display elements, not shown.

[0110] Advantageously, the electromechanical actuator 11 further comprises a reducer 19 and an output shaft 20.

[0111] Advantageously, the reducer 19 comprises at least one reduction stage. The reduction stage may be an epicyclic type gear train.

[0112] The type and number of reduction stages of the reducer are not limiting.

[0113] Advantageously, the electromechanical actuator 11 further comprises a brake 32.

[0114] By way of non-limiting examples, the brake 32 may be a spring brake, a cam brake, a magnetic brake or an electromagnetic brake.

[0115] Advantageously, the reducer 19 and, possibly, the brake 32 are arranged inside the casing 17 of the electromechanical actuator 11, in the assembled configuration of the electromechanical actuator 11.

[0116] Advantageously, the electromechanical actuator 11 may also comprise an end-of-travel and / or obstacle detection device (not shown), which may be mechanical or electronic.

[0117] The winding tube 4 is rotated about the axis of rotation X and the casing 17 of the electromechanical actuator 11 while being supported by two pivot connections. The first pivot connection is made at a first end of the winding tube 4 by means of a crown, not shown, inserted around a first end 17a of the casing 17 of the electromechanical actuator 11. The crown thus makes it possible to produce a bearing. The second pivot connection, not shown, is made at a second end of the winding tube 4, opposite the first end.

[0118] Advantageously, the electromechanical actuator 11 further comprises a torque support 21, which may also be called the “head” of the electromechanical actuator 11 or the “fixed point” of the electromechanical actuator 11. The torque support 21 is arranged at the first end 17a of the casing 17 of the electromechanical actuator 11, in the assembled configuration of the electromechanical actuator 11.

[0119] The torque support 21 makes it possible to take up the forces exerted by the electromechanical actuator 11 and, in particular, to ensure the take up of the forces exerted by the electromechanical actuator 11, in particular the torque exerted by the electromechanical actuator 11, and to ensure the take up of this torque by the structure of the building B. The torque support 21 advantageously makes it possible to take up, in addition, forces exerted by the winding tube 4, in particular the weight of the winding tube 4, of the electromechanical actuator 11 and of the screen 2, and to ensure the take up of these forces by the structure of the building B.

[0120] Thus, the torque support 21 of the electromechanical actuator 11 makes it possible to fix the electromechanical actuator 11 to the holding device 9, 23, in particular to one of the supports 23 or to one of the cheeks 10 of the box 9.

[0121] Advantageously, the torque support 21 projects at the first end 17a of the casing 17 of the electromechanical actuator 11, in particular the end 17a of the casing 17 receiving the crown. The crown constitutes, in other words is configured to constitute, a bearing for guiding the winding tube 4 in rotation, in the assembled configuration of the occulting device 3.

[0122] Advantageously, the torque support 21 of the electromechanical actuator 11 can also make it possible to close the first end 17a of the casing 17.

[0123] Furthermore, the torque support 21 of the electromechanical actuator 11 can make it possible to support at least part of the electronic control unit 15.

[0124] Advantageously, the torque support 21 comprises a first part 21a and a second part 21b.

[0125] Advantageously, the first part 21a of the torque support 21 is configured to cooperate, in other words cooperates, with the casing 17 of the electromechanical actuator 11, in particular in the assembled configuration of the electromechanical actuator 11. Furthermore, the second part 21b of the torque support 21 is configured to cooperate, in other words cooperates, with the holding device 9, 23, in particular in an assembled configuration of the electromechanical actuator 11 in the occulting device 3. The torque support is advantageously a single piece. Thus, the production of the torque support 21 comprising the first and second parts 21a, 21b in a single piece makes it possible to improve the rigidity of the torque support 21.

[0126] Advantageously, at least a portion of the first part 21a of the torque support 21 is of generally cylindrical shape and is arranged inside the casing 17 of the electromechanical actuator 11, in the assembled configuration of the electromechanical actuator 11.

[0127] Advantageously, an outer diameter 0212 of at least a portion of the second part 21b of the torque support 21 is greater than an outer diameter 017 of the casing 17 of the electromechanical actuator 11.

[0128] Advantageously, the torque support 21 comprises a stop 33 configured to cooperate, in other words which cooperates, with the casing 17, at the level of the first end 17a of the casing 17, in the assembled configuration of the electromechanical actuator 11.

[0129] Thus, the stop 33 of the torque support 21 makes it possible to limit the sinking of the first part 21a of the torque support 21 into the casing 17, in the direction of the longitudinal axis X of the casing 17.

[0130] Furthermore, the stop 33 of the torque support 21 delimits the first and second parts 21a, 21b of the torque support 21 relative to each other.

[0131] Thus, only the first part 21a of the torque support 21 is arranged inside the casing 17 of the electromechanical actuator 11, following the fitting of the torque support 21 inside the casing 17, up to the stop 33, in the assembled configuration of the electromechanical actuator 11.

[0132] Here, the stop 33 of the torque support 21 is produced in the form of a shoulder and, more particularly, in the form of a collar, in particular of cylindrical shape and with a rectilinear generatrix.

[0133] Advantageously, the electronic control unit 15 can be arranged at least partly inside the casing 17 of the electromechanical actuator 11.

[0134] Furthermore, the electronic control unit 15 can be arranged at least partly outside the casing 17 of the electromechanical actuator 11 and, in particular, mounted on one of the two supports 23, on one of the cheeks 10 of the box 9 or in the torque support 21.

[0135] Here, the first electronic card 15a of the electronic control unit 15 is arranged inside the casing 17 of the electromechanical actuator 11. Furthermore, the second electronic card 15b is arranged inside the torque support 21 of the electromechanical actuator 11. Here and as illustrated in FIG. 3, the torque support 21 comprises a cover 22. Furthermore, the second electronic card 15b is arranged inside a housing formed between the second part 21b of the torque support 21 and the cover 22.

[0136] Advantageously, the torque support 21 comprises at least one button and a power connector, for example a connector according to the USB standard, from the English “Universal Serial Bus”, preferably a USB Type-C connector, not shown, which allows the connection of the electromechanical actuator 11 to an external electrical power supply source.

[0137] This or these buttons can make it possible to adjust the electromechanical actuator 11 through one or more configuration modes, to pair one or more control units 12, 13 with the electromechanical actuator 11, to reset one or more parameters, which may be, for example, an end-of-travel position, to reset the paired control unit(s) 12, 13 or even to control the movement of the screen 2.

[0138] Here, the torque support 21 includes a single button.

[0139] The number of torque support buttons is not limited and can be different. It can be, in particular, greater than or equal to two.

[0140] Advantageously, the torque support 21 comprises at least one display device, not shown, so as to allow a visual indication, which may be, for example, a state of charge of the main battery 24.

[0141] Advantageously, the display device comprises at least one lighting source, not shown, in particular a light-emitting diode, mounted on the second electronic card 15b and, optionally, a transparent or translucent cover and / or a light guide, to allow the passage of the light emitted by the lighting source.

[0142] Here, the torque support 21 comprises a single display device.

[0143] The number of display devices is not exhaustive and may be different. It may be, in particular, greater than or equal to two.

[0144] Advantageously, the output shaft 20 of the electromechanical actuator 11 is arranged inside the winding tube 4 and at least partly outside the casing 17 of the electromechanical actuator 11.

[0145] Here, one end of the output shaft 20 projects relative to the casing 17 of the electromechanical actuator 11, in particular relative to a second end 17b of the casing 17 opposite the first end 17a. Advantageously, the output shaft 20 of the electromechanical actuator 11 is configured to drive in rotation a connecting element, not shown, connected to the winding tube 4. The connecting element is produced in the form of a wheel.

[0146] When the electromechanical actuator 11 is operated, the electric motor 16 and the reduction gear 19 rotate the output shaft 20. In addition, the output shaft 20 of the electromechanical actuator 11 rotates the winding tube 4 via the connecting element.

[0147] Thus, the winding tube 4 rotates the screen 2 of the occulting device 3, so as to open or close the opening 1.

[0148] The connection between the wired radiofrequency antenna 40 and the first communication module 27 is now described in more detail, this connection being visible in FIGS. 5, 6, 7 and 8.

[0149] The wire radiofrequency antenna 40 comprises an antenna cable 41 of circular section comprising a first end 42 electrically connected to the communication module 27, a second free end 43, a base portion 44 and a free portion 46. The base portion 44 extends from the end 42 to the free portion 46 and the free portion 46 extends from the base portion 44 to the free end 43. Once the electromechanical actuator 11 is assembled, the base portion 44 is enclosed in the casing 17, while the free portion 47 protrudes outside the casing 17.

[0150] The first end 42 comprises a connector 47 connected and connected to a first face 60a of the first electronic card 15a. Via the first electronic card 15a, the first communication module 27 is connected to the wired radiofrequency antenna 40 and receives the control orders received by the wired radiofrequency antenna 40.

[0151] We note 60b the second face of the first electronic card 15a, opposite the first face 60a.

[0152] The electromechanical actuator 11 also comprises a guide 48 comprising a tubular body 49. The tubular body 49 comprises a conduit 50, which connects the two opposite ends 491 and 492 of the tubular body 49 and which has a rectilinear portion 51, on the side of the end 491, and a rounded portion 52, on the side of the end 492.

[0153] The tubular body 49 is formed of several segments 493 of relatively large diameter and several connecting portions 494 which each connect two segments 493. Thus, the body 49 has a certain rigidity, at the level of the segments 493, which makes it possible to define the trajectory of the antenna wire 41 between the ends 491 and 492. The body 49 also has a certain flexibility, at the level of the connecting portions 494, which makes it possible to deform it elastically during the assembly of the electromechanical actuator 11. In addition, the tubular body 49 comprises a collar 495 capable of coming to bear against the torque support 21 or in a groove of the torque support 21 capable of cooperating with the collar 495 when the electromechanical actuator 11 is assembled, thus making it possible to achieve an axial stop of the guide 48 by the torque support 21.

[0154] The guide 48 also comprises a first widened portion 53 and a second widened portion 54 which extend all around the tubular body 49, in an intermediate zone between the ends 491 and 492. The widened portions 53 and 54 are positioned on the rounded portion 52 of the tubular body 49, respectively on the side of the first face 60a and on the side of the second face 60b of the first electronic card 15a. The first widened portion 53 defines a first periphery 55 and the second widened portion 54 defines a second periphery 56, the peripheries 55 and 56 being identical, that is to say merged if they are superimposed in the same plane. The widened portions 53 and 54 delimit between them a channel 57 around the tubular body 49.

[0155] The guide 48 receives in the conduit 50 the base portion 44 of the antenna cable 41, the rounded portion 52 being directed towards the first end 42 and the rectilinear portion 51 being directed towards the second free end 43 so that, going from the first end 42 towards the second free end 43, the antenna cable 41, held by the guide 48, forms a part with a curved trajectory 442 then a part with a rectilinear trajectory 441.

[0156] The guide 48 is fixed on the electronic card 15a, the electronic card 15a being inserted into the channel 57. Advantageously, the electronic card 15a has an opening 015, here a notch, passing along the axis of movement Z through the electronic card 15a. An edge 15c of the opening 015 has a diameter smaller than the diameter of the peripheries 55 and 56, so that the edge 15c is housed in the channel 57 and the widened parts 53 and 54 are respectively supported on the faces 60b and 60a of the electronic card 15a allowing the fixing of the guide 48 on the electronic card 15a. In other words, the guide 48 is in contact with the electronic card 15a and is directly fixed on the electronic card 15a, that is to say that the fixing between the guide 48 and the electronic card 15a is not carried out by an intermediate element different from the guide 48 and the electronic card 15a.The guide 48 and the antenna cable pass through the electronic board 15a through the opening 015.

[0157] Thus, the space inside the torque support 21 and the casing 17 is optimized. Indeed, thanks to the opening 015 in which the guide 48 is housed, the presence of the guide 48 does not increase the footprint of the electronic card 15a. In addition, the presence of the opening 015 makes it possible to obtain a trajectory of the antenna cable 41 included in a plane perpendicular to the electronic card 15a so as not to twist and damage the antenna cable 41.

[0158] Advantageously, the guide is made of synthetic material. The material of the guide 48 is not limiting. It may be a polymer plastic material, preferably an elastomer, the guide 48 being in fact electrically insulating.

[0159] In practice, the guide 48 is advantageously overmolded around the base portion 44.

[0160] During the assembly of the electromechanical actuator 11, the antenna cable 41, the base portion 44 of which is housed in the conduit 50 of the guide 48, is inserted into the torque support 21 as shown in FIG. 9. The antenna cable 41 is then free in translation, relative to the torque support, along the longitudinal axis X of the casing 17. The guide 48 is then fixed to the electronic card 15a by inserting the edge 15c of the opening 015 into the channel 57. The antenna cable 41 then passes through the electronic card 15a, the end 42 being positioned on the side of the first face 60a of the electronic card 15a and the portion with a rectilinear trajectory 441 being positioned on the side of the second face 60b of the electronic card 15a. The antenna cable 41 is connected via the connector 47 to the first face 60a of the electronic card 15a.The electronic card 15a connected to the antenna cable 41 is then inserted into the casing 17, the electronic card 15a being positioned parallel to the longitudinal axis X of the casing 17. The torque support 21 is then fixed, for example by clipping, to the casing 17, enclosing the guide 48 and the base portion 44 in the casing 17. The antenna cable 41 is then tensioned by pulling on the free end 43, while the end 42 remains connected to the electronic card 15a and the base portion 44 is held by the guide 48, so that the rectilinear trajectory part 441 is advantageously tensioned parallel to the longitudinal axis X of the casing 17.

[0161] Advantageously, and as shown in Figure 8, the electromechanical actuator 11 comprises a clamping system 62, fixed on the torque support 21 and configured to hold in position, by clamping, the rectilinear trajectory part 441. Advantageously, once the antenna cable 41 is tensioned, the clamping system 62 is tightened around the rectilinear trajectory part 441, so as to block the translation along the longitudinal axis X of the casing 17 of the antenna cable 41 relative to the torque support 21 and to hold the rectilinear trajectory part 441 in tension parallel to the longitudinal axis X of the casing 17, at a distance from the first electronic card 15a.

[0162] Once the electromechanical actuator 11 is assembled, the base portion 44 is held by the guide 48 and, advantageously, by the clamping system 62, at a distance from the electronic card 15a and the various electronic components of the electromechanical actuator 11, in particular from the electrical power supply cable 18, so that the air separating, on the one hand, the electronic card 15a and the various electronic components that it carries and, on the other hand, the antenna cable 41 insulates the antenna cable 41 from the electronic card 15a and the various electronic components and prevents or greatly reduces electromagnetic interference.

[0163] Alternatively, not shown, the clamping system 62 is configured to hold in position, by clamping, the rectilinear portion 51 of the tubular body 49 and, through this rectilinear portion 51, the part with a rectilinear trajectory 441.

[0164] In the second embodiment shown in Figure 10, elements similar to those of the first embodiment bear the same references. If a reference is shown in Figure 10 without being mentioned in the description or mentioned in the description without being shown in Figure 10, it designates the element bearing the same reference in the first embodiment. In the following, the main difference between the second embodiment and the first is described.

[0165] The guide 48 of the second embodiment is produced in the form of an insert 58 separate from the radiofrequency antenna 40, and assembled with the radiofrequency antenna. The tubular body 49 of the insert 58 is radially truncated so that the base portion 44 is inserted radially into the conduit 50 defined by this tubular body.

[0166] Advantageously, the guide 48 comprises two jaws 59, respectively arranged at one end 491 or 492 of the body 49, outside the conduit 50. When the antenna cable 41 is housed in the conduit 50, the jaws 59 block the base portion 44 which protrudes from each end of the conduit 50, so as to prevent extraction of the antenna cable 41 from the conduit 50, in particular in a lateral direction relative to the main direction of the conduit 50.

[0167] Advantageously, the guide 48 has protuberances 61 arranged, as visible in FIG. 10, in the conduit 50. The protuberances 61 are directed towards the inside of the conduit 50 and punctually reduce the diameter of the conduit 50 so as to wedge the base portion 44, when it is housed in the conduit 50, to prevent the antenna cable 41 from sliding in the conduit 50.

[0168] It is obvious to the person skilled in the art that the “parallel” characteristic characterizing the position of the electronic card 15 relative to the longitudinal axis X, and of the rectilinear trajectory part 441 relative to the longitudinal axis X, must be interpreted as “substantially parallel” because a minimal deviation from parallelism implemented voluntarily or resulting from the assembly or manufacturing process would have little or no impact on the desired result. Any characteristic described above for an embodiment or a variant is applicable to the other embodiments and variants described above, as far as this is technically possible.

Claims

CLAIMS 1. Electromechanical actuator (11), for a blackout device, the electromechanical actuator (11) comprising: a housing (17), extending along a longitudinal axis (X); a torque support (21), mounted, at least in part, inside the housing (17), the housing (17) and the torque support (21) being fixedly attached to each other; an electric motor (16), mounted inside the housing (17);and an electronic control unit (15) for controlling the electric motor (16), comprising: o at least one electronic card (15a), the electronic card (15a) being mounted inside the casing (17), o a radiofrequency communication module (27) assembled on the electronic card (15a), and o a wired radiofrequency antenna (40), the radiofrequency antenna extending through the torque support (21) and comprising a first end (42) electrically connected to the radiofrequency communication module (27) on a first face (60a) of the electronic card (15a), and a second end (43) arranged outside the casing (17), the radiofrequency antenna (40) comprising a base portion (44) extending from the first end (42) to the torque support (21);characterized in that the electromechanical actuator (11) further comprises a guide (48) fixed to the electronic card (15a), the guide (48) comprising a conduit (50), in which the antenna cable (41) is housed, and which holds the base portion (44) of the antenna cable (41) such that the base portion (44) forms, going from the first end (42) towards the second end (43) of the antenna cable (41), a part with a curved trajectory (442) from the first face (60a) of the electronic card (15a) then a part with a rectilinear trajectory (441) in the direction of the torque support (21).; 2. Electromechanical actuator (11) according to claim 1, wherein the electronic card (15a) is positioned parallel to the longitudinal axis (X).

3. Electromechanical actuator (11) according to any one of the preceding claims, in which the rectilinear trajectory part (441) of the base portion (44) extends parallel to and at a distance from the electronic card (15a).

4. Electromechanical actuator (11) according to any one of the preceding claims, further comprising a clamping system (62), fixed to the torque support (21), and to which the rectilinear trajectory part (441) is secured by clamping the clamping system (62).

5. Electromechanical actuator (11) according to any one of the preceding claims, in which the base portion (44) and the guide (48) pass through the electronic card (15a).

6. Electromechanical actuator (11) according to claim 5, wherein the guide (48) is fixed to the electronic card (15a) at an opening (015) of the electronic card (15a), through which the guide (48) and the base portion (44) pass through the electronic card (15a).

7. Electromechanical actuator (11) according to any one of the preceding claims, in which the guide (48) is overmolded around the base portion (44).

8. Electromechanical actuator (11) according to any one of claims 1 to 6, in which the guide (48) is an added part (58), separate from the radiofrequency antenna (40), and assembled with the radiofrequency antenna (40).

9. Electromechanical actuator (11) according to the preceding claim, in which the guide (48) comprises protrusions (61), arranged in the conduit (50) of the attached part (58) and configured to prevent sliding of the antenna cable (41) in the conduit (50).

10. Electromechanical actuator (11) according to any one of claims 8 and 9, wherein the guide (48) comprises at least one jaw (59), arranged at one end (491, 492) of a body (49) of the guide (48), outside the conduit (50), configured to prevent extraction of the antenna cable (41) from the conduit (50).

11. Electromechanical actuator (11) according to any one of the preceding claims, in which the guide (48) is made of polymer plastic material, in particular elastomer.

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

13. Method for assembling an electromechanical actuator (11) according to any one of claims 1 to 11, the method successively comprising: inserting the radiofrequency antenna (40) through the torque support (21), the radiofrequency antenna (40); fixing the guide (48) on the electronic card (15a), while the antenna cable (41) is housed in the conduit (50); connecting the first end (42) of the radiofrequency antenna to the communication module (27), while the communication module (27) is already assembled on the electronic card (15a); fixing the casing (17) and the torque support (21) to each other, so that the electronic card (15a) is mounted inside the casing (17); pulling on the second end of the antenna cable (41) until obtaining that, while the guide (48) holds the base portion (44), the base portion (44) forms, in addition to the curved trajectory part (442), the rectilinear trajectory part (441).

14. The method of claim 13, wherein the electromechanical actuator (11) is according to claim 4, the method comprising securing the rectilinear path portion (441) to the clamping system (62) fixed to the torque support, by tightening the clamping system (62) so as to maintain the rectilinear path portion (441) in tension.

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