Motorized drive device, associated occultation device and control method

Abstract

Motorized drive device, associated concealment device and control method A motorized drive device comprises an electromechanical actuator, an electronic control unit (15) and an electrical power supply device (26). The electrical power supply device (26) comprises a battery (24) and a photovoltaic panel (25). The electronic control unit (15) comprises a first protection device (33), configured to selectively electrically disconnect the battery (24) from the photovoltaic panel (25). The first protection device (33) comprises a first transistor (41), self-controlled and electrically connected to the photovoltaic panel (25) and to the battery (24), and a voltage divider bridge (44), controlling the first transistor (41), from a voltage (Vpv) supplied by the photovoltaic panel (25).Furthermore, the first protection device (33) protects at least a part of the electronic control unit (15) against a reversal of the polarity connection of the battery (24), during the electrical connection of the battery (24) to the electronic control unit (15). Figure for the abstract: Figure 4.

Description

Title of the invention: Motorized drive device, associated occultation device and control method

[0001] The present invention relates to a motorized drive device, in particular for a concealing device, in other words a motorized drive device for a concealing device, a concealing device comprising such a motorized drive device, as well as a method for controlling the operation of such a motorized drive device.

[0002] Generally, the present invention relates to the field of occultation devices comprising a motorized drive device moving a screen between at least a first position and at least a second position.

[0003] A motorized drive device comprises an electromechanical actuator of a movable closing, concealing or sun protection element, such as a shutter, a door, a grille, a blind or any other equivalent material, hereinafter called a screen.

[0004] Document WO 2012 059 673 A2 is already known, which describes a motorized drive device. The motorized drive device comprises an electromechanical actuator, an electronic control unit, and an electrical power supply device. The electromechanical actuator comprises an electric motor. The electrical power supply device comprises a battery and a photovoltaic panel. The electronic control unit comprises a protection device. The electronic control unit and the electric motor are supplied with electrical power from the battery. The battery is supplied with electrical power by means of the photovoltaic panel. The protection device is configured to electrically disconnect the battery from the photovoltaic panel. The protection device comprises a transistor. The transistor is electrically connected, on the one hand, to the photovoltaic panel and, on the other hand, to the battery..

[0005] However, this motorized drive device has the disadvantage that the transistor electrically disconnecting the battery from the photovoltaic panel is controlled by a microcontroller of the electronic control unit. This protection device produced by means of the transistor controlled by the microcontroller is expensive.

[0006] Furthermore, this motorized drive device has the disadvantage of electrically disconnecting the battery from the photovoltaic panel, by means of the transistor, only to carry out a measurement of the short-circuit current of the photovoltaic panel or a measurement of the open-circuit voltage of the photovoltaic panel, so as to cause a screen of a blackout device to move, depending on a level of sunlight.

[0007] Furthermore, this motorized drive device has the disadvantage that, if the photovoltaic panel is electrically connected to the electronic control unit before the battery is electrically connected to the electronic control unit and the battery is electrically connected to the electronic control unit by reversing the connection polarities of the battery to the electronic control unit, then damage, or even destruction, of an electronic component of the electronic control unit may be caused.

[0008] The present invention aims to solve the aforementioned drawbacks and to propose a motorized drive device, a concealment device comprising such a motorized drive device, as well as a method for controlling the operation of such a motorized drive device, making it possible to protect an electronic control unit against a reversal of the connection of the polarities of a battery, during the electrical connection of the battery to the electronic control unit, while minimizing the costs of obtaining the motorized drive device.

[0009] In this regard, the present invention aims, according to a first aspect, at a motorized drive device comprising at least:

[0010] - an electromechanical actuator,

[0011] - an electronic control unit, and

[0012] - an electrical energy supply device,

[0013] the electromechanical actuator comprising at least one electric motor,

[0014] the electrical energy supply device comprising at least:

[0015] - a battery, the electronic control unit and the electric motor being powered into electrical energy from the battery, and

[0016] - a photovoltaic panel, the battery being supplied with electrical energy at means of the photovoltaic panel,

[0017] the electronic control unit comprising at least:

[0018] - a first protection device, the first protection device being configured to selectively electrically disconnect the battery from the photovoltaic panel, the first protection device comprising a first transistor, the first transistor being electrically connected, on the one hand, to the photovoltaic panel and, on the other hand, to the battery.

[0019] According to the invention, the first transistor is self-controlled. The first protection device further comprises a voltage divider bridge, the first transistor being controlled by the voltage divider bridge, from a voltage supplied by the photovoltaic panel. In addition, the first protection device protects at least one part of the electronic control unit against reverse connection of the battery polarities, when electrically connecting the battery to the electronic control unit.

[0020] Thus, the first protection device makes it possible to protect at least part of the electronic control unit, in particular one or more electronic components of an electronic card, against a reversal of connection of the polarities of the battery, during the electrical connection of the battery to the electronic control unit, while minimizing the costs of obtaining the motorized drive device.

[0021] In the case where the connection polarities of the battery are correctly electrically connected to the electronic control unit and following the electrical connection of the photovoltaic panel to the battery, the voltage supplied by the photovoltaic panel to the battery controls the first transistor, by means of the voltage divider bridge, so as to recharge the battery with electrical energy from the photovoltaic panel.

[0022] In this way, when the photovoltaic panel supplies the voltage intended to supply electrical energy to the battery, the first transistor is self-supplied with electrical energy by means of the voltage divider bridge.

[0023] Consequently, when the photovoltaic panel supplies the voltage intended to supply electrical energy to the battery, the first transistor is said to be in an “activated” state, corresponding to a closed state thereof.

[0024] In the case where the connection polarities of the battery are reversed, following the electrical connection of the battery to the electronic control unit, the first transistor is not activated via the voltage divider bridge.

[0025] In this way, at least a part of the electronic control unit is protected against a reverse voltage, so as to avoid damage, or even destruction, of an electronic component thereof, in particular an electronic component of the electronic card, and, more particularly, of an element of a current measuring device, for example an amplifier.

[0026] Consequently, in the event of reversal of the battery connection polarities, when reconnecting the battery electrically to the electronic control unit, a change in the battery connection polarities allows the motorized drive device to be correctly put into operation.

[0027] Furthermore, the first transistor is not controlled by the microcontroller of the electronic control unit.

[0028] Consequently, the microcontroller of the electronic control unit does not measure an electrical quantity or does not deliver a control signal to activate the first transistor.

[0029] According to an advantageous characteristic of the invention, the electrical energy supply device further comprises a first diode, the first diode being electrically connected, on the one hand, to the photovoltaic panel and, on the other hand, to the battery. The voltage divider bridge is electrically connected, on the one hand, to an electrical connection between the photovoltaic panel and the battery and, on the other hand, to a ground, in parallel to the photovoltaic panel and the battery. Furthermore, the first transistor is electrically connected to the first diode and to the battery.

[0030] According to another advantageous characteristic of the invention, the electronic control unit comprises at least one microcontroller. The microcontroller comprises at least one input port. The electronic control unit further comprises a measuring device.

[0031] Furthermore, the measuring device comprises at least:

[0032] - a shunt resistor, the shunt resistor being electrically connected, of a on the one hand, to the first diode and, on the other hand, to the first transistor, and

[0033] - an amplifier, the amplifier being electrically connected, on the one hand, to the terminals of the shunt resistor and, on the other hand, to the input port of the microcontroller.

[0034] According to another advantageous characteristic of the invention, the first transistor comprises:

[0035] - a first pin, the first pin being electrically connected to the panel photovoltaic,

[0036] - a second pin, the second pin being electrically connected to the battery, And

[0037] - a third pin, the third pin being electrically connected to a point middle of the voltage divider bridge.

[0038] According to another advantageous characteristic of the invention, the electronic control unit further comprises:

[0039] - a control unit, and

[0040] - a second protection device.

[0041] The drive unit is electrically connected to the electric motor. Furthermore, the second protection device is configured to selectively electrically disconnect the battery from the drive unit.

[0042] According to another advantageous characteristic of the invention, the second protection device comprises a second transistor and a third transistor, the second transistor being electrically connected to the third transistor. The microcontroller comprises an output port, the output port of the microcontroller being electrically connected to the third transistor, the second transistor being controlled by the microcontroller via the third transistor. In addition, the second transistor protects the control unit against a reversal of the polarity connections. of the battery, when electrically connecting the battery to the electronic control unit.

[0043] According to another advantageous characteristic of the invention, the electronic control unit further comprises:

[0044] - an auxiliary electrical power supply unit, and

[0045] - a second diode, the second diode being electrically connected to the unit auxiliary electrical power supply.

[0046] Furthermore, the second diode protects the auxiliary electrical power supply unit against a reversal of the polarity connection of the battery, when electrically connecting the battery to the electronic control unit.

[0047] The present invention aims, according to a second aspect, at a concealment device comprising at least:

[0048] - a screen, and

[0049] - a motorized drive device.

[0050] According to the invention, the motorized drive device is in accordance with the invention and as mentioned above. The screen is configured to be driven in movement by the electromechanical actuator of the motorized drive device.

[0051] This concealment device has characteristics and advantages similar to those described previously in relation to the motorized drive device according to the invention and as mentioned above.

[0052] According to an advantageous characteristic of the invention, the occulting device further comprises a winding tube. The screen can be rolled onto the winding tube. Furthermore, the winding tube is arranged so as to be driven in rotation by the electromechanical actuator.

[0053] The present invention aims, according to a third aspect, at a method for controlling the operation of a motorized drive device of a concealment device,

[0054] - an electromechanical actuator,

[0055] - an electronic control unit, and

[0056] - an electrical energy supply device,

[0057] the electromechanical actuator comprising at least one electric motor,

[0058] the electrical energy supply device comprising at least:

[0059] - a battery, the electronic control unit and the electric motor being powered into electrical energy from the battery, and

[0060] - a photovoltaic panel, the battery being supplied with electrical energy at means of the photovoltaic panel,

[0061] the electronic control unit comprising at least:

[0062] - a first protection device, the first protection device being configured to selectively electrically disconnect the battery relative to to the photovoltaic panel, the first protection device comprising a first transistor, the first transistor being electrically connected, on the one hand, to the photovoltaic panel and, on the other hand, to the battery.

[0063] According to the invention, the first transistor is self-controlled. The first protection device further comprises a voltage divider bridge.

[0064] Furthermore, the method comprises at least the following steps:

[0065] - electrical connection of the battery to the electronic control unit,

[0066] - electrical connection of the photovoltaic panel to the battery, and

[0067] - control of the first transistor by the voltage divider bridge, from a voltage supplied by the photovoltaic panel, so as to protect the electronic control unit, by means of the first protection device, against a reversal of the connection of the polarities of the battery, during the step of electrical connection of the battery to the electronic control unit.

[0068] This control method has characteristics and advantages similar to those described previously in relation to the motorized drive device according to the invention and as mentioned above.

[0069] Other features and advantages of the invention will become apparent in the following description, given with reference to the appended drawings, given as non-limiting examples and in which:

[0070] [Fig.l] [Fig.l] is a schematic cross-sectional view of an installation according to one embodiment of the invention, the installation comprising a concealment device according to the invention;

[0071] [Fig.2] [Fig.2] is a schematic perspective view of the installation illustrated in [Fig.l];

[0072] [Fig.3] [Fig.3] is a schematic view in axial and partial section of the installation illustrated in figures 1 and 2, showing an electromechanical actuator of a motorized drive device of the concealment device of the installation; and

[0073] [Fig.4] [Fig.4] is a schematic view illustrating part of an electrical diagram of the motorized drive device of the installation's concealment device, illustrated in figures 1 to 3.

[0074] First of all, with reference to Figures 1 and 2, a home automation installation 100 according to the invention is described. This home automation installation 100 comprises at least one closing, concealing or solar protection device 3, according to one embodiment of the invention. This home automation installation 100, installed in a building, not shown, comprises an opening 1, in which is arranged a window 40 or a door, which is only shown in [Fig.l]. This home automation installation 100 is equipped with at least one screen 2 belonging to the closing, concealing or solar protection device 3, in particular a motorized roller shutter.

[0075] The closing, concealing or sun protection device 3 is hereinafter called “concealing device”. The concealing device 3 comprises the screen 2.

[0076] The occultation device 3 may be a roller shutter, a canvas blind or one with adjustable slats, a rolling gate, a grille, a door or even a hinged shutter. The present invention applies to all types of occultation device.

[0077] A roller shutter according to the embodiment of the invention is described with reference to Figures 1 and 2.

[0078] The occulting device 3 comprises a motorized drive device 5, according to the invention. The motorized drive device 5 comprises an electromechanical actuator 11 illustrated in [Fig.3].

[0079] Advantageously, the occulting device 3 further comprises a winding tube 4. The screen 2 can be wound on the winding tube 4. Furthermore, the winding tube 4 is arranged so as to be driven in rotation by the electromechanical actuator 11.

[0080] Thus, the screen 2 of the occulting device 3 is wound onto the winding tube 4 or unwound around it, the winding tube 4 being driven by the motorized drive device 5, in particular by the electromechanical actuator 11.

[0081] In this way, the screen 2 is movable between a rolled-up position, in particular high, and an unrolled position, in particular low, and vice versa.

[0082] The screen 2 of the occultation device 3 is a closing, occultation and / or solar protection screen, winding and unwinding around the winding tube 4, the internal diameter of which is greater than the external 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.

[0083] The electromechanical actuator 11, in particular of the tubular type, makes it possible to rotate the winding tube 4 around an axis of rotation X, so as to move, in particular unwind or wind, the screen 2 of the occulting device 3.

[0084] In a mounted state of the occulting device 3, the electromechanical actuator 11 is inserted into the winding tube 4.

[0085] In a known manner, the roller shutter, which forms the concealment device 3, comprises an apron comprising horizontal slats articulated to each other, forming the screen 2 of the roller shutter 3, and guided by two lateral slides 6, shown only in [Fig.2]. These slats are joined when the apron 2 of the roller shutter 3 reaches its lower unrolled position.

[0086] In the case of a roller shutter, the rolled-up high position corresponds to the support of a final end blade 8, for example L-shaped, of the apron 2 of the roller shutter 3 against an edge of a box 9 of the roller shutter 3 or to the stopping of the final end blade 8 in a programmed high end-of-travel position. In addition, the unrolled low position corresponds to the final end blade 8 of the apron 2 of the roller shutter 3 resting against a threshold 7 of the opening 1 or to the final end blade 8 stopping in a programmed low end-of-travel position.

[0087] Here, the screen 2 is configured to be moved, by means of the motorized drive device 5, between an open position, corresponding to the rolled-up position and which can also be called the first end-of-travel position or the upper end-of-travel position FdCH, and a closed position, corresponding to the rolled-up position and which can also be called the second end-of-travel position or the lower end-of-travel position FdCB.

[0088] Thus, the electromechanical actuator 11 is configured to drive, in other words causes, the screen 2 to move between the first end-of-travel position FdCH and the second end-of-travel position FdCB, and vice versa.

[0089] The first slat of the roller shutter 3, opposite the final end slat 8, is connected to the winding tube 4 by means of at least one articulation 10, in particular a band-shaped attachment piece.

[0090] The winding tube 4 is arranged inside the box 9 of the roller shutter 3. The apron 2 of the roller shutter 3 winds and unwinds around the winding tube 4 and is housed at least partly inside the box 9.

[0091] Generally, the trunk 9 is arranged above the opening 1, or in the upper part of the opening 1.

[0092] 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.

[0093] Advantageously, the local control unit 12 can be connected, by wired or wireless connection, with the central control unit 13.

[0094] 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.

[0095] The motorized drive device 5 is preferably configured to execute the commands for unrolling 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.

[0096] The home automation installation 100 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.

[0097] We will now describe, in more detail and with reference to [Fig. 3], the motorized drive device 5, including the electromechanical actuator 11, belonging to the home automation installation 100 and, more particularly, to the occultation device 3 illustrated in Figures 1 and 2.

[0098] The electromechanical actuator 11 comprises an electric motor 16.

[0099] The electric motor 16 is represented by its casing in [Fig.3], without details on its internal constituent elements.

[0100] Advantageously, the electric motor 16 comprises a rotor and a stator, not shown and positioned coaxially around the axis of rotation X, which is also the axis of rotation of the winding tube 4 in the mounted configuration of the motorized drive device 5.

[0101] Here, the electric motor 16 may be of the brushless type with electronic commutation, also called “BLDC” (acronym for the English term BrushLess Direct Current) or “synchronous with permanent magnets”, or of the direct current type.

[0102] 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.

[0103] 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.

[0104] The control means of the electromechanical actuator 11 comprise hardware and / or software means.

[0105] By way of non-limiting example, the hardware means may comprise at least one microcontroller 31.

[0106] Here, the motorized drive device 5 comprises the electronic control unit 15. Furthermore, the electronic control unit 15 comprises the microcontroller 31.

[0107] Advantageously, the electronic control unit 15 further comprises a first communication module 27, 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.

[0108] Advantageously, the first communication module 27 of the electronic control unit 15 is of the wireless type. In particular, the first communication module 27 is configured to receive radio control commands.

[0109] Advantageously, the first communication module 27 can also allow the reception of control orders transmitted by wired means.

[0110] 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, not shown, arranged inside the building or remote outside the building, including, in particular, one or more sensors which can be configured to determine, for example, temperature, brightness, or even wind speed, in the case where the weather station is located outside the building.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] Advantageously, the local control unit 12 and / or central control unit 13 comprises at least one second communication module 36.

[0115] Thus, the second communication module 36 of the local control unit 12 or central control unit 13 is configured to transmit, in other words emit, control orders, in particular by wireless means, for example radioelectric, or by wired means.

[0116] Furthermore, the second communication module 36 of the local control unit 12 or central control unit 13 can also be configured to receive, in other words receives, control orders, in particular via the same means.

[0117] Advantageously, 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.

[0118] 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 in a unidirectional manner or in a bidirectional manner.

[0119] Advantageously, the local control unit 12 is a control point, can be fixed or mobile. A fixed control point can be a control box intended to be fixed on a facade of a building wall or on a face of a window frame 40 or a door. A mobile control point can be a remote control, a smartphone or a tablet.

[0120] Advantageously, the local control unit 12 and / or central control unit 13 further comprises a controller 35.

[0121] The motorized drive device 5, in particular the electronic control unit 15, is preferably configured to execute movement control orders, in particular closing and opening, of the screen 2 of the occulting device 3. These control orders can be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0122] 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.

[0123] 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, not shown, and / or to a signal from a clock, not shown, of the electronic control unit 15, in particular of the microcontroller 31. The sensor and / or the clock can be integrated into the local control unit 12 or into the central control unit 13.

[0124] Advantageously, the electromechanical actuator 11 further 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.

[0125] Here, the casing 17 of the electromechanical actuator 11 is of cylindrical shape, in particular of revolution around the axis of rotation X.

[0126] Advantageously, the casing 17 is a tube.

[0127] Here, the tube forming the casing 17 has a circular section.

[0128] In an exemplary embodiment, the casing 17 is made of a metallic material.

[0129] The material of the housing of the electromechanical actuator is not limiting and can be different. This may be, in particular, a plastic material.

[0130] The casing 17 is hollow. The casing 17 comprises a first end 17a and a second end 17b. The second end 17b is opposite the first end 17a. The casing 17 is open at each of its ends 17a, 17b.

[0131] Advantageously, the electromechanical actuator 11 further comprises an output shaft 20.

[0132] The output shaft 20 is arranged, in other words is configured to be arranged, at the second end 17b of the casing 17, in particular in the configuration electromechanical actuator assembly 11.

[0133] Advantageously, the electromechanical actuator 11 further comprises a reducer 19.

[0134] The reducer 19 is represented by its casing in [Fig.3], without details on its internal constituent elements.

[0135] Advantageously, the reducer 19 comprises at least one reduction stage. The reduction stage may be an epicyclic type gear train.

[0136] The type and number of reduction stages of the reducer are not limiting.

[0137] The reducer 19 is coupled, in other words is configured to be coupled, with the electric motor 16, in particular with the rotor of the electric motor 16 and in the assembled configuration of the electromechanical actuator 11.

[0138] Advantageously, the electromechanical actuator 11 further comprises a brake 29.

[0139] By way of non-limiting examples, the brake 29 may be a spring brake, a cam brake, a magnetic brake or an electromagnetic brake.

[0140] Here and as visible in [Fig.3], in particular in the assembled configuration of the electromechanical actuator 11, the brake 29 is configured to be arranged, in other words is arranged, between the electric motor 16 and the reducer 19, that is to say at the output of the electric motor 16.

[0141] As a variant, not shown, in particular in the assembled configuration of the electromechanical actuator 11, the brake 29 is configured to be arranged, in other words is arranged, between the electronic control unit 15 and the electric motor 16, in other words at the input of the electric motor 16, between the reducer 19 and the output shaft 20, in other words at the output of the reducer 19, or between two reduction stages of the reducer 19.

[0142] Advantageously, the reducer 19 and, possibly, the brake 29 are arranged inside the casing 17 of the electromechanical actuator 11, in particular in the assembled configuration of the electromechanical actuator 11.

[0143] Advantageously, the electromechanical actuator 11 further comprises a crown 30. The crown 30 is arranged, in other words is configured to be arranged, at the first end 17a of the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0144] The crown 30 constitutes, in other words is configured to constitute, a bearing for guiding the rotation of the winding tube 4, in particular in an assembled configuration of the occulting device 3.

[0145] Advantageously, the electromechanical actuator 11 and, more particularly, the electronic control unit 15 further comprises an obstacle detection and end-of-travel device, not shown, during the rolling up of the screen 2 and during the unrolling of this screen 2, which may be mechanical or electronic.

[0146] Advantageously, the obstacle detection and end-of-travel device is implemented by means of the microcontroller 31 of the electronic control unit 15 and, in particular, by means of an algorithm implemented by this microcontroller 31.

[0147] 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 means of two pivot connections. The first pivot connection is made at a first end of the winding tube 4 by means of the ring 30 inserted around the first end 17a of the casing 17 of the electromechanical actuator 11. The ring 30 thus makes it possible to produce a bearing. The second pivot connection, not shown in [Fig. 3], is made at a second end of the winding tube 4, not visible in this figure.

[0148] Advantageously, the electromechanical actuator 11 further comprises a torque support 21, which may also be called “actuator head” or “fixed point”.

[0149] The torque support 21 closes, in other words is configured to close, the first end 17a of the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0150] Thus, the torque support 21 is arranged, in other words is configured to be arranged, at the first end 17a of the casing 17.

[0151] Advantageously, the torque support 21 projects, at the level of the first end 17a of the casing 17, in particular the end 17a of the casing 17 receiving the crown 30.

[0152] Thus, a first part of the torque support 21 is arranged inside the casing 17 and a second part of the torque support 21 is arranged outside the casing 17.

[0153] Advantageously, the torque support 21 of the electromechanical actuator 11 is configured to fix the electromechanical actuator 11 to a frame 23, in particular to a cheek of the trunk 9.

[0154] Thus, the torque support 21 makes it possible to take up the forces exerted by the electromechanical actuator 11, in particular the torque exerted by the electromechanical actuator 11, relative to the structure of the building. 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.

[0155] The torque support 21 is fixed, in other words is configured to be fixed, to the casing 17 by means of one or more fixing elements, in particular in the assembled configuration of the electromechanical actuator 11. The fixing element(s) may be, in particular, bosses, fixing screws, elements of fixing by elastic snap-fastening, ribs fitted into notches or a combination of these different fixing elements.

[0156] 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.

[0157] Advantageously, the electronic control unit 15 can be supplied with electrical energy by means of an electrical power supply cable 18.

[0158] Here and as illustrated in [Fig.3], the electronic control unit 15 is thus arranged, in other words is integrated, inside the casing 17 of the electromechanical actuator 11.

[0159] As a variant, not shown, the electronic control unit 15 is arranged outside the casing 17 of the electromechanical actuator 11 and, in particular, mounted on the box 9 or in the torque support 21.

[0160] Advantageously, the torque support 21 can comprise at least one button, not shown.

[0161] 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.

[0162] Advantageously, the torque support 21 may comprise at least one display device, not shown, so as to allow a visual indication of an operating parameter of the motorized drive device 5.

[0163] Advantageously, the display device comprises at least one lighting source, not shown, in particular a light-emitting diode.

[0164] This or these lighting sources are mounted on an electronic card of the electronic control unit 15 and, optionally, a transparent or translucent cover and / or a light guide is or are provided, to allow the passage of the light emitted by the or each of the lighting sources.

[0165] 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.

[0166] Here, one end of the output shaft 20 projects relative to the casing 17 of the electromechanical actuator 11, in particular relative to the second end 17b of the casing 17 opposite the first end 17a.

[0167] Advantageously, the output shaft 20 of the electromechanical actuator 11 is configured to drive a connecting element 22 in rotation. This connecting element 22 is connected to the winding tube 4, in particular in the assembled configuration of the occulting device 3. The connecting element is, in the example of the figures, produced in the form of a wheel.

[0168] When the electromechanical actuator 11 is put into operation, the electric motor 16 and the reducer 19 drive the output shaft 20 in rotation. In addition, the output shaft 20 of the electromechanical actuator 11 drives the winding tube 4 in rotation via the connecting element 22.

[0169] Thus, the winding tube 4 rotates the screen 2 of the occulting device 3, so as to open or close the opening 1.

[0170] The occulting device 3 and, more particularly, the motorized drive device 5 further comprises an electrical energy supply device 26, visible in [Fig.2] and an electrical diagram of which is shown in [Fig.4]. The electromechanical actuator 11 is electrically connected to the electrical power supply device 26.

[0171] The electrical energy supply device 26 comprises at least one battery 24 and at least one photovoltaic panel 25.

[0172] The electrical energy supply device 26 is configured to supply, in other words supplies, electrical energy to the electromechanical actuator 11 and, more particularly, to the electronic control unit 15 and the electric motor 16.

[0173] Thus, the electrical power supply device 26 makes it possible to supply electrical power to the electromechanical actuator 11, without itself being electrically connected to a mains power supply network.

[0174] Here, the photovoltaic panel 25 is electrically connected to the battery 24, by an electrical connection L24-25.

[0175] The electromechanical actuator 11 is electrically connected to the electrical energy supply device 26 and, more particularly, to the battery 24, in particular by means of the electrical power supply cable 18.

[0176] The battery 24 is configured to supply, in other words supplies, with electrical energy the electromechanical actuator 11, in particular the electronic control unit 15 and the electric motor 16. Furthermore, the battery 24 is configured to be supplied, in other words is supplied, with electrical energy by the photovoltaic panel 25.

[0177] Thus, the recharging of the battery 24 is implemented by solar energy, by means of the photovoltaic panel 25.

[0178] Advantageously, the battery 24 can be arranged at the level of the box 9 of the concealment device 3.

[0179] Here and as illustrated in [Fig.2], the battery 24 is arranged outside the trunk 9.

[0180] As a variant, not shown, the battery 24 can be arranged inside the trunk 9, inside the winding tube 4 while being outside the casing 17, or inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11. In the latter case, the electromechanical actuator 11 comprises the battery 24.

[0181] When the torque support 21 comprises a display device, the operating parameter that this display device makes it possible to visualize is advantageously a state of charge of the battery 24.

[0182] Here, the electromechanical actuator 11 comprises the electrical power supply cable 18 allowing its supply with electrical energy, in particular the electrical power supply of the electronic control unit 15 and the electrical power supply of the electric motor 16, in particular from the battery 24.

[0183] Here, the battery 24 is electrically connected directly to the electronic control unit 15, by the electrical power supply cable 18.

[0184] The battery 24 is of the rechargeable type.

[0185] Advantageously, the battery 24 comprises a plurality of energy storage elements 32, in particular electrically connected in series. The energy storage elements 32 of the battery 24 may be, in particular, batteries, in other words accumulators.

[0186] Advantageously, the photovoltaic panel 25 comprises a plurality of photovoltaic cells 43. In this case, the battery 24 is supplied with electrical energy by means of the photovoltaic cells 43 of the photovoltaic panel 25.

[0187] The motorized drive device 5, in particular the photovoltaic panel 25 and / or the electronic control unit 15, comprises charging elements configured to charge the battery 24, from the solar energy recovered by the photovoltaic panel 25. In this case, the current flows between the components 15, 24 and 25 through a wired connection, which may be separate from the electrical energy supply cable 18.

[0188] Thus, the charging elements configured to charge the battery 24, from solar energy, make it possible to convert the solar energy recovered by the photovoltaic panel 25 into electrical energy.

[0189] Alternatively, in addition, the motorized drive device 5, in particular the electromechanical actuator 11, is supplied with electrical energy from the battery 24, from an auxiliary battery, not shown, or from a mains electricity supply network, in particular by the commercial AC network, in particular depending on a state of charge of the battery 24.

[0190] Here, the electronic control unit 15 comprises a single electronic card 55. Furthermore, the electronic card 55 is configured to control the electric motor 16, to allow the battery 24 to be recharged and, possibly, to access parameterization and / or configuration functions of the electromechanical actuator 11, by means selection and, possibly, display elements, not shown. As mentioned above, the battery charging elements 24 can be arranged at the level of the electronic card 55.

[0191] As a variant, not shown, the electronic control unit 15 comprises a first electronic card and a second electronic card. The first electronic card is configured to control, in other words, the electric motor 16. Furthermore, the second electronic card is configured to allow the 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. The battery charging elements 24 may be arranged at the level of the second electronic card.

[0192] In the case where the electronic control unit 15 comprises a first electronic card and a second electronic card, not shown, the first electronic card of the electronic control unit 15 may be arranged inside the casing 17 of the electromechanical actuator 11. Furthermore, the second electronic card may be arranged inside the torque support 21 of the electromechanical actuator 11. Furthermore, the torque support 21 may comprise a cover, not shown. Furthermore, the second electronic card may be arranged inside a housing formed between a part of the torque support 21 and the cover.

[0193] Advantageously, the photovoltaic panel 25 can be fixed on the box 9, on a wall of the building, on one of the side slides 6, on a pane of the window 40 or on a fixed frame of the window 40.

[0194] A part of an electrical diagram of the motorized drive device 5 illustrated in FIGS. 1 to 3, in accordance with an embodiment of the invention, is now described with reference to [Fig. 4].

[0195] [Fig.4] being a schematic view, the scale of the components therein is presented is not respected.

[0196] The photovoltaic panel 25 provides, in other words is configured to provide or deliver, a voltage Vpv.

[0197] The battery 24 provides, in other words is configured to provide or deliver, a voltage Vbat.

[0198] The electronic control unit 15 further comprises a first protection device 33. The first protection device 33 is configured to electrically disconnect, in other words electrically disconnects, selectively, the battery 24 from the photovoltaic panel 25.

[0199] In the present description, the expression “selectively”, in other words “by switching”, means that the electrical disconnection carried out is effective or not, depending on the state of a member of the first protection device 33 which operates this de- electrical connection.

[0200] The first protection device 33 comprises a first transistor 41. The first transistor 41 is electrically connected, on the one hand, to the photovoltaic panel 25 and, on the other hand, to the battery 24.

[0201] Advantageously, the first transistor 41 is an integral part of the electrical connection L24-25 between the photovoltaic panel 25 and the battery 24.

[0202] The first transistor 41 is self-controlled.

[0203] The first protection device 33 further comprises a voltage divider bridge 44. The first transistor 41 is controlled by the voltage divider bridge 44, from the voltage Vpv supplied by the photovoltaic panel 25.

[0204] Furthermore, the first protection device 33 protects, in other words is configured to protect, at least a part of the electronic control unit 15 against a reversal of connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0205] Here, an “inversion” of connection of the polarities of the battery 24 consists of electrically connecting in opposite directions the polarities of the battery 24, represented in [Fig.4] by the signs “+” and “-”, with the electronic control unit 15, compared to a normal configuration of electrical connection between the battery 24 and the electronic control unit 15, in other words to change the direction of the current flowing from the battery 24 to the electronic control unit 15.

[0206] Thus, the first protection device 33 makes it possible to protect at least a part of the electronic control unit 15, in particular one or more electronic components of the electronic card 55, against a reversal of connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15, while minimizing the costs of obtaining the motorized drive device 5.

[0207] In the case where the connection polarities of the battery 24 are correctly electrically connected to the electronic control unit 15 and following the electrical connection of the photovoltaic panel 25 to the battery 24, the voltage Vpv supplied by the photovoltaic panel 25 to the battery 24 controls the first transistor 41, by means of the voltage divider bridge 44, so as to recharge the battery 24 with electrical energy from the photovoltaic panel 25.

[0208] In this way, when the photovoltaic panel 25 supplies the voltage Vpv intended to supply the battery 24 with electrical energy, the first transistor 41 is self-supplied with electrical energy by means of the voltage divider bridge 44.

[0209] Consequently, when the photovoltaic panel 25 supplies the voltage Vpv intended to supply electrical energy to the battery 24, the first transistor 41 is said to be in an “activated” state, corresponding to a closed state thereof.

[0210] In the case where the connection polarities of the battery 24 are reversed, following the electrical connection of the battery 24 to the electronic control unit 15, the first transistor 41 is not activated via the voltage divider bridge 44.

[0211] In this way, at least a part of the electronic control unit 15 is protected against a reverse voltage, so as to avoid damage, or even destruction, of an electronic component thereof, in particular an electronic component of the electronic card 55.

[0212] Consequently, in the event of inversion of the connection polarities of the battery, during a new electrical connection of the battery 24 to the electronic control unit 15, a change in the connection polarities of the battery 24 makes it possible to correctly put the motorized drive device 5 into service.

[0213] Furthermore, the first transistor 41 is not controlled by the microcontroller 31 of the electronic control unit 15.

[0214] Consequently, the microcontroller 31 of the electronic control unit 15 does not measure an electrical quantity or does not deliver a control signal to activate the first transistor 41.

[0215] As long as the photovoltaic panel 25 is not electrically connected to the battery 24, the protection by the first transistor 41 is not functional, in other words is not active.

[0216] In this way, as long as the photovoltaic panel 25 is not electrically connected to the battery 24, the first protection device 33 only makes it possible to check whether the connection polarities of the battery 24 are reversed, in particular by a test, following the electrical connection of the battery 24 to the electronic control unit 15.

[0217] In the case where the connection polarities of the battery 24 are correctly electrically connected to the electronic control unit 15, adjustments of the motorized drive device 5 and, more particularly, of the electromechanical actuator 11 can be implemented, in particular by means of a configuration tool or one of the local 12 or central 13 control units.

[0218] Following the adjustments implemented, the photovoltaic panel 25 is electrically connected to the battery 24.

[0219] In the case where the connection polarities of the battery 24 are reversed, following the electrical connection of the battery 24 to the electronic control unit 15, adjustments of the motorized drive device 5 and, more particularly, of the electromechanical actuator 11 are prevented, since the electronic control unit 15 and the electric motor 16 are not supplied with electrical energy.

[0220] Here, the first transistor 41 is a field effect transistor, in particular of the type MOSFET (acronym for the Anglo-Saxon expression “Metal Oxide Semiconductor Field Effect Transistor”).

[0221] As a variant, not shown, the first transistor 41 may be an IGBT type transistor (acronym for the English expression “Insulated Gate Bipolar Transistor”).

[0222] Here, the voltage divider bridge 44 is electrically connected, on the one hand, to the electrical connection L24-25 between the photovoltaic panel 25 and the battery 24 and, on the other hand, to a ground 52, in parallel to the photovoltaic panel 25 and to the battery 24.

[0223] Here, the voltage divider bridge 44 comprises a first resistor 45 and a second resistor 46. The first resistor 45 is electrically connected to the second resistor 46. The voltage divider bridge 44 comprises a midpoint 47. The midpoint 47 is located between the first resistor 45 and the second resistor 46.

[0224] Thus, the first and second resistors 45, 46 of the voltage divider bridge 44 make it possible to switch the first transistor 41 from an open state to a closed state, and vice versa.

[0225] Advantageously, the voltage divider bridge 44 is configured to switch, in other words toggles, the first transistor 41 from the open state to the closed state when the value of the voltage Vpv supplied by the photovoltaic panel 25 is greater than or equal to a predetermined threshold value Vseuii of voltage.

[0226] As a non-limiting example, the predetermined threshold value Vseuii is between 3 and 5 volts.

[0227] Thus, the voltage divider bridge 44 is configured to switch, in other words toggles, the first transistor 41 from the open state to the closed state, even when the sunlight of the photovoltaic panel 25 is low, for example greater than or equal to a minimum sunlight value, which may be, for example, 5 watts per square meter.

[0228] Here, the battery 24 is electrically connected to the electronic control unit 15 and then the battery 24 is electrically connected to the photovoltaic panel 25, via the first protection device 33.

[0229] Advantageously, the electrical energy supply device 26 and, more particularly, the electronic control unit 15 further comprises a first diode 48. The first diode 48 is electrically connected, on the one hand, to the photovoltaic panel 25 and, on the other hand, to the battery 24.

[0230] Advantageously, the first diode 48 is an integral part of the electrical connection L24-25 between the photovoltaic panel 25 and the battery 24.

[0231] Here, the first diode 48 is arranged between the photovoltaic panel 25 and the battery 24. The first diode 48 is said to be “passing” from the photovoltaic panel 25 to the battery 24 and said to be “blocking” from the battery 24 to the photovoltaic panel. 25.

[0232] Here, the first diode 48 makes it possible, in particular, to avoid a return of electrical energy from the battery 24 to the photovoltaic panel 25, when the value of the voltage Vpv supplied by the photovoltaic panel 25 is lower than a value of the voltage Vbat supplied by the battery 24.

[0233] Furthermore, the first diode 48 makes it possible to protect the electrical energy supply device 26, as well as the electronic control unit 15, against a reversal of the wiring direction of the battery 24 or the photovoltaic panel 25.

[0234] Advantageously, the first transistor 41 is electrically connected to the first diode 48 and to the battery 24.

[0235] Here, the first transistor 41 is arranged between the photovoltaic panel 25 and the battery 24 and, more particularly, between the first diode 48 and the battery 24. Furthermore, the first transistor 41 is arranged between a part of the electronic control unit 15 and the photovoltaic panel 25 and, more particularly, between a part of the electronic control unit 15 and the first diode 48.

[0236] Advantageously, the microcontroller 31 comprises at least one input port 38.

[0237] Advantageously, the electronic control unit 15 further comprises a measuring device 37. The measuring device 37 comprises at least one shunt resistor 53 and an amplifier 57. The shunt resistor 53 is electrically connected, on the one hand, to the first diode 48 and, on the other hand, to the first transistor 4L. The amplifier 57 is electrically connected, on the one hand, to the terminals 53a, 53b of the shunt resistor 53 and, on the other hand, to the input port 38 of the microcontroller 31.

[0238] Thus, in the case where the connection polarities of the battery 24 are reversed, following the electrical connection of the battery 24 to the electronic control unit 15, the electronic control unit 15 is protected against a reverse voltage, by means of the first transistor 41, so as to avoid damage, or even destruction, of an element of the measuring device 37, in particular of the amplifier 57.

[0239] In this way, the first transistor 41 is configured to protect, in other words protects, the measuring device 37 and, more particularly, the amplifier 57 against a reversal of connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0240] Consequently, the first protection device 33 makes it possible to protect the electronic control unit 15, in particular the measuring device 37 and, more particularly, the amplifier 57, against a reversal of connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0241] Advantageously, the shunt resistor 53 is an integral part of the electrical connection L24-25 between the photovoltaic panel 25 and the battery 24.

[0242] Advantageously, the measuring device 37 is a current measuring device.

[0243] Advantageously, the input port 38 of the microcontroller 31 comprises an analog / digital converter 39. In this case, the analog / digital converter 39 is integrated into the microcontroller 31.

[0244] Alternatively, not shown, the input port 38 of the microcontroller 31 is electrically connected to an analog / digital converter. In this case, the analog / digital converter is a separate element from the microcontroller 31.

[0245] Advantageously, the first transistor 41 comprises a first reverse diode 58.

[0246] Thus, the first reverse diode 58 of the first transistor 41 is short-circuited by a closure of the first transistor 41 and the battery 24 is supplied with electrical energy from the photovoltaic panel 25 through the first transistor 41.

[0247] In this way, the first reverse diode 58 of the first transistor 41 makes it possible to protect the measuring device 37 and, more particularly, the amplifier 57 against an inversion of the connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0248] Here, the first reverse diode 58 is integrated into the first transistor 41.

[0249] Advantageously, the first transistor 41 comprises:

[0250] - a first pin 49, which can also be called “source”, the first pin 49 being electrically connected to the photovoltaic panel 25,

[0251] - a second pin 50, which can also be called “drain”, the second pin 50 being electrically connected to battery 24, and

[0252] - a third pin 51, which can also be called a “grid”, the third pin 51 being electrically connected to the midpoint 47 of the voltage divider bridge 44.

[0253] Thus, the third pin 51 of the first transistor 41 is supplied with electrical energy as soon as a positive voltage is present in the voltage divider bridge 44. The supply of electrical energy to the third pin 41 of the first transistor 41 causes the first transistor 41 to close.

[0254] In this way, the battery 24 is supplied with electrical energy from the photovoltaic panel 25 through the first transistor 41.

[0255] Here, the first pin 49 of the first transistor 41 is electrically connected to the photovoltaic panel 25 through the first diode 48 and, possibly, the shunt resistor 53.

[0256] Here, the second pin 50 of the first transistor 41 is electrically connected to the positive terminal “+” of the battery 24.

[0257] Advantageously, the first protection device 33 further comprises a capacitor 54. The capacitor 54 is electrically connected, on the one hand, to the first resistor 45 and, on the other hand, to the midpoint 47 of the voltage divider bridge 44 and to the third pin 51 of the first transistor 4L

[0258] Thus, the capacitor 54 makes it possible to overcome electrical disturbances coming from the photovoltaic panel 25 at the level of the first pin 49 of the first transistor 41.

[0259] In this way, the operation of the first transistor 41 is independent of these electrical disturbances coming from the photovoltaic panel 25.

[0260] Here, the capacitor 54 is electrically connected, on the one hand, to the photovoltaic panel 25 and, more particularly, to the shunt resistor 53, in this case to its terminal 53b, and, on the other hand, to the first pin 49 of the first transistor 41.

[0261] Advantageously, the electronic control unit 15 further comprises a control unit 56. Furthermore, the control unit 56 is electrically connected to the electric motor 16.

[0262] Thus, the control unit 56 is configured to supply electrical energy, in other words supplies electrical energy, to the electric motor 16.

[0263] Here, the battery 24 supplies the voltage Vbat to the control unit 56.

[0264] Advantageously, the electronic control unit 15 and, more particularly, the electronic card 55 of the electronic control unit 15 comprises at least the ground 52.

[0265] Advantageously, the electronic control unit 15 further comprises a second protection device 59. Furthermore, the second protection device 59 is configured to electrically disconnect, in other words electrically disconnects, selectively, the battery 24 relative to the control unit 56.

[0266] Thus, the second protection device 59 protects, in other words is configured to protect, the control unit 56 against a reversal of connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the control unit 56.

[0267] Advantageously, the second protection device 59 comprises a second transistor 60 and a third transistor 61. The second transistor 60 is electrically connected to the third transistor 61.

[0268] The microcontroller 31 comprises an output port 42. The output port 42 of the microcontroller 31 is electrically connected to the third transistor 61. The second transistor 60 is controlled by the microcontroller 31 via the third transistor 61. Furthermore, the second transistor 60 is configured to protect, in other words protects, the control unit 56 against a reversal of connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0269] Thus, the second protection device 59 makes it possible to protect the control unit 56 against a reversal of the connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0270] Advantageously, the second transistor 60 comprises a second reverse diode 62.

[0271] When the electric motor 16 is stopped, the control unit 56 is supplied with electrical energy from the battery 24 through the second reverse diode 62 of the second transistor 60, while the second transistor 60 is in an open state.

[0272] Here, the second reverse diode 62 is integrated into the second transistor 60.

[0273] When the electric motor 16 is put into operation, the second reverse diode 62 of the second transistor 60 is short-circuited by a closure of the second transistor 60 and the control unit 56 is supplied with electrical energy from the battery 24 through the second transistor 60.

[0274] Thus, the short-circuiting of the second reverse diode 62 of the second transistor 60 makes it possible to reduce electrical losses and a voltage drop at the level of the second protection device 59, compared to the case where the electrical power supply of the electric motor 16 from the battery 24 would be implemented through a reverse diode, similar to the second reverse diode 62 in the absence of the second transistor 60 in the second protection device 59.

[0275] Here, the second transistor 60 is electrically connected to the electrical connection L24-25 between the photovoltaic panel 25 and the battery 24.

[0276] Here, the second transistor 60 is electrically connected, on the one hand, to the first transistor 41 and, on the other hand, to the battery 24. Furthermore, the second transistor 60 is electrically connected to the control unit 56.

[0277] Here, the second transistor 60 is a field effect transistor, in particular of the MOSFET type (acronym for the English expression “Metal Oxide Semiconductor Field Effect Transistor”).

[0278] As a variant, not shown, the second transistor 60 may be an IGBT type transistor (acronym for the English expression “Insulated Gate Bipolar Transistor”).

[0279] Here, the third transistor 61 is a bipolar transistor, in particular of the NPN type (acronym for the expression Negative-Positive-Negative).

[0280] Alternatively, not shown, the third transistor 61 may be a PNP type bipolar transistor (acronym for the expression Positive-Negative-Positive).

[0281] Advantageously, the second protection device 59 further comprises a third resistor 65, a fourth resistor 66 and a fifth resistor 67.

[0282] Advantageously, the second transistor 60 comprises:

[0283] - a first pin 68, which can also be called “source”, the first pin 68 being electrically connected to battery 24,

[0284] - a second pin 69, which can also be called “drain”, the second pin 69 being electrically connected to the control unit 56, and

[0285] - a third pin 70, which can also be called a “grid”, the third pin 70 being electrically connected to the third transistor 61.

[0286] Advantageously, the third transistor 61 comprises:

[0287] - a first pin 71, which can also be called “base”, the first pin 71 being electrically connected to output port 42 of microcontroller 31,

[0288] - a second pin 72, which can also be called a “collector”, the second pin 72 being electrically connected to the second transistor 60, in particular to the second pin 69 of the second transistor 60, and

[0289] - a third pin 73, which can also be called “emitter”, the third pin 51 being electrically connected to ground 52.

[0290] Advantageously, the third resistor 65 is electrically connected, on the one hand, to the second pin 69 of the second transistor 60 and to the control unit 56 and, on the other hand, to the third pin 70 of the second transistor 60 and to the second pin 72 of the third transistor 61.

[0291] Thus, the third resistor 65 limits, in other words is configured to limit, a value of a current leaving the second pin 69 of the second transistor 60 and entering the second pin 72 of the third transistor 61, when the third transistor 61 is in a closed state.

[0292] Advantageously, the fourth resistor 66 is electrically connected, on the one hand, to the first pin 71 of the third transistor 61 and to the fifth resistor 67 and, on the other hand, to the output port 42 of the microcontroller 31.

[0293] Thus, the fourth resistor 66 makes it possible to define a current threshold value in the first pin 71 of the third transistor 61, so as to adjust a switching threshold between an open state and a closed state of the third transistor 61.

[0294] Advantageously, the fifth resistor 67 is electrically connected, on the one hand, to the first pin 71 of the third transistor 61 and to the fourth resistor 66 and, on the other hand, to the ground 52 and to the third pin 73 of the third transistor 61.

[0295] Thus, the fifth resistor 67 makes it possible to guarantee that the potential of the first pin 71 of the third transistor 61 is at a predetermined reference value, in particular 0 volts, when the third transistor 61 is in a closed state.

[0296] Advantageously, the electrical energy supply device 26 and, more particularly, the electronic control unit 15 further comprises an auxiliary electrical energy supply unit 63.

[0297] Thus, the auxiliary electrical power supply unit 63 is configured to supply electrical power, in other words supplies electrical power, to the electronic control unit 15, and more particularly, to the microcontroller 31 and the first communication module 27, as well as to the control unit 56.

[0298] Here, the auxiliary electrical power supply unit 63 is a converter of electrical power from a first direct current value to a second value of direct current. The first direct current value is an input voltage, corresponding to the supply voltage Vbat supplied by the battery 24. Furthermore, the second direct current value is an output voltage, corresponding to a voltage Vdd supplied to the electronic control unit 15, and more particularly, to the microcontroller 31 and to the first communication module 27.

[0299] By way of non-limiting example, the first direct current value is a voltage that can be between 8 volts and 21 volts. In addition, the second direct current value is a voltage that can be 3.3 volts, called “stable”.

[0300] Here, the second direct current value, called the voltage Vdd, is also supplied to the amplifier 57.

[0301] Advantageously, the electrical power supply device 26 and, more particularly, the electronic control unit 15 further comprises a second diode 64. The second diode 64 is electrically connected to the auxiliary electrical power supply unit 63. The second diode 64 is said to be "passing" from the battery 24 to the auxiliary electrical power supply unit 63 and said to be "blocking" from the auxiliary electrical power supply unit 63 to the battery 24.

[0302] Furthermore, the second diode 64 is configured to protect, in other words protects, the auxiliary electrical power supply unit 63 against a reversal of connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0303] Here, the second diode 64 is electrically connected to the electrical connection L24-25 between the photovoltaic panel 25 and the battery 24.

[0304] Here, the second diode 64 is electrically connected, on the one hand, to the first transistor 41 and, on the other hand, to the battery 24.

[0305] Here, the second diode 64 is electrically connected to the second protection device 59.

[0306] Advantageously, the second resistor 46 of the voltage divider bridge 44 is electrically connected to the ground 52.

[0307] Furthermore, the photovoltaic panel 25, the battery 24, the electric motor 16, the third transistor 61 of the second protection device 59, the amplifier 57 of the measuring device 37, the microcontroller 31 and the first communication module 27 are each connected to a ground and, more particularly, to the ground 52 of the electronic control unit 15.

[0308] Advantageously, the electrical power supply device 26 further comprises a keying mechanism, not shown. In this case, the keying mechanism is arranged at an electrical connection between the battery 24 and the electronic control unit 15.

[0309] Thus, the keying mechanism makes it possible to prevent a reversal of the connection of the polarities of the battery 24, during the electrical connection of the battery 24 to the electronic control unit 15.

[0310] Here, this keying mechanism is integrated at the level of an electrical socket, not shown, of the electrical power supply cable 18, electrically connecting the electrical energy supply device 26 and, more particularly, the battery 24 to the electronic control unit 15. For example, this keying mechanism is produced by the shape of electrical plugs of the electrical socket of the electrical power supply cable 18.

[0311] An embodiment of a method for controlling the operation of the motorized drive device 5, illustrated in FIGS. 1 to 3, in accordance with the invention, is now described.

[0312] The control method comprises at least the following steps, preferably performed in the order mentioned below:

[0313] - electrical connection of the battery 24 to the electronic control unit 15, by example by means of the power supply cable 18,

[0314] - electrical connection of the photovoltaic panel 25 to the battery 24, for example by means of the power supply cable 18, and

[0315] - control of the first transistor 41 by the voltage divider bridge 44, from the voltage Vpv supplied by the photovoltaic panel 25, so as to protect the electronic control unit 15, by means of the first protection device 33, against a reversal of connection of the polarities of the battery 24, during the step of electrical connection of the battery 24 to the electronic control unit 15.

[0316] Thanks to the present invention, the first protection device makes it possible to protect at least part of the electronic control unit, in particular one or more electronic components of an electronic card, against a reversal of the connection of the polarities of the battery, during the electrical connection of the battery to the electronic control unit, while minimizing the costs of obtaining the motorized drive device.

[0317] Numerous modifications can be made to the embodiments described above, without departing from the scope of the invention.

[0318] Alternatively, not shown, the electrical power supply device 26 further comprises a charger. This charger is configured to be plugged in, in other words is plugged into, a wall electrical outlet, so as to recharge the battery 24 from a mains power supply network. This charger forms an external electrical power supply source.

[0319] As a variant, not shown, the electrical energy supply device 26 further comprises an auxiliary battery, the auxiliary battery being configured to recharge the battery 24. Thus, the battery 24 can be recharged by means of the auxiliary battery forming an external electrical power supply source, in particular in the case where the occulting device 3 is far from a wall electrical outlet. In addition, the auxiliary battery can be used to recharge a battery of other electrical equipment, in particular portable equipment, such as, for example, a mobile phone or a laptop. Furthermore, such an auxiliary battery can have at least two electrical outputs, in particular a first output delivering a voltage of 12 volts to supply electrical energy to the battery 24 and a second output delivering a voltage of 5 volts to supply electrical energy to other electrical equipment, called portable equipment.

[0320] As a variant, not shown, the electromechanical actuator 11 is inserted into a rail, in particular of square or rectangular section, which can be open at one or both of its ends, in particular in the assembled configuration of the occultation device 3. Furthermore, the electromechanical actuator 11 can be configured to drive a drive shaft on which cords for moving and / or orienting the screen 2 are wound, which can, advantageously, be a slatted blind in this case.

[0321] Furthermore, the embodiments and variations contemplated may be combined to generate new embodiments of the invention, without departing from the scope of the invention.

Claims

Claims

1. A motorized drive device (5) comprising at least: - an electromechanical actuator (11), - an electronic control unit (15), and - an electrical power supply device (26), the electromechanical actuator (11) comprising at least one electric motor (16), the electrical power supply device (26) comprising at least: - a battery (24), the electronic control unit (15) and the electric motor (16) being supplied with electrical power from the battery (24), and - a photovoltaic panel (25), the battery (24) being supplied with electrical power by means of the photovoltaic panel (25), the electronic control unit (15) comprising at least: - a first protection device (33), the first protection device (33) being configured to selectively electrically disconnect the battery (24) from the photovoltaic panel (25),the first protection device (33) comprising a first transistor (41), the first transistor (41) being electrically connected, on the one hand, to the photovoltaic panel (25) and, on the other hand, to the battery (24), characterized in that the first transistor (41) is self-controlled, in that the first protection device (33) further comprises a voltage divider bridge (44), the first transistor (41) being controlled by the voltage divider bridge (44), from a voltage (Vpv) supplied by the photovoltaic panel (25), and in that the first protection device (33) protects at least part of the electronic control unit (15) against a reversal of connection of the polarities of the battery (24), during the electrical connection of the battery (24) to the electronic control unit (15).,

2. Motorized drive device (5) according to claim 1, characterized in that the electronic control unit (15) further comprises a first diode (48), the first diode (48) is electrically connected, on the one hand, to the photovoltaic panel (25) and, on the other hand, to the battery (24), in that the voltage divider bridge (44) is electrically connected, on the one hand, to an electrical connection (L24-25) between the photovoltaic panel (25) and the battery (24) and, on the other hand, to a ground (52), in parallel to the photovoltaic panel (25) and to the battery (24), and in that the first transistor (41) is electrically connected to the first diode (48) and to the battery (24).

3. Motorized drive device (5) according to claim 2, characterized in that the electronic control unit (15) comprises at least one microcontroller (31), in that the microcontroller (31) comprises at least one input port (38), in that the electronic control unit (15) further comprises a measuring device (37), and in that the measuring device (37) comprises at least: - a shunt resistor (53), the shunt resistor (53) being electrically connected, on the one hand, to the first diode (48) and, on the other hand, to the first transistor (41), and - an amplifier (57), the amplifier (57) being electrically connected, on the one hand, to the terminals (53a, 53b) of the shunt resistor (53) and, on the other hand, to the input port (38) of the microcontroller (31).

4. Motorized drive device (5) according to any one of claims 1 to 3, characterized in that the first transistor (41) comprises: - a first pin (49), the first pin (49) being electrically connected to the photovoltaic panel (25), - a second pin (50), the second pin (50) being electrically connected to the battery (24), and - a third pin (51), the third pin (51) being electrically connected to a midpoint (47) of the voltage divider bridge (44).

5. Motorized drive device (5) according to any one of claims 1 to 4, characterized in that the electronic control unit (15) further comprises: - a control unit (56), and - a second protection device (59), in that the control unit (56) is electrically connected to the electric motor (16), and in that the second protection device (59) is configured to selectively electrically disconnect the battery (24) from the control unit (56).

6. Motorized drive device (5) according to claim 5, characterized in that the second protection device (59) comprises a second transistor (60) and a third transistor (61), the second transistor (60) being electrically connected to the third transistor (61), in that the microcontroller (31) comprises an output port (42), the output port (42) of the microcontroller (31) being electrically connected to the third transistor (61), the second transistor (60) being controlled by the microcontroller (31) via the third transistor (61), and in that the second transistor (60) protects the control unit (56) against a reversal of the polarity connection of the battery (24), during the electrical connection of the battery (24) to the electronic control unit (15).

7. Motorized drive device (5) according to any one of claims 1 to 6, characterized in that the electronic control unit (15) further comprises: - an auxiliary electrical power supply unit (63), and - a second diode (64), the second diode (64) being electrically connected to the auxiliary electrical power supply unit (63), and in that the second diode (64) protects the auxiliary electrical power supply unit (63) against a reversal of the polarity connection of the battery (24), during the electrical connection of the battery (24) to the electronic control unit (15).

8. A screening device (3) comprising at least: - a screen (2), and - a motorized drive device (5), characterized in that the motorized drive device (5) is in accordance with any one of claims 1 to 7, the screen (2) being configured to be driven in movement by the electromechanical actuator (11) of the motorized drive device (5).

9. A screening device (3) according to claim 8, characterized in that the screening device (3) further comprises a winding tube (4), in that the screen (2) can be rolled up onto the winding tube (4), and in that the winding tube (4) is arranged to be driven in rotation by the electromechanical actuator (11).

10. Method for controlling the operation of a motorized drive device (5), the motorized drive device (5) comprising at least: - an electromechanical actuator (11), - an electronic control unit (15), and - an electrical energy supply device (26), the electromechanical actuator (11) comprising at least one electric motor (16), the electrical energy supply device (26) comprising at least: - a battery (24), the electronic control unit (15) and the electric motor (16) being supplied with electrical energy from the battery (24), and - a photovoltaic panel (25), the battery (24) being supplied with electrical energy by means of the photovoltaic panel (25), the electronic control unit (15) comprising at least: - a first protection device (33), the first protection device (33) being configured to selectively electrically disconnect the battery (24) from the photovoltaic panel (25), the first protection device (33) comprising a first transistor (41), the first transistor (41) being electrically connected, on the one hand, to the photovoltaic panel (25) and, on the other hand, to the battery (24), characterized in that the first transistor (41) is self-controlled, in that the first protection device (33) further comprises a voltage divider bridge (44), and in that the method comprises at least the following steps: - electrical connection of the battery (24) to the electronic control unit (15), - electrical connection of the photovoltaic panel (25) to the battery (24), and - control of the first transistor (41) by the voltage divider bridge (44), from a voltage (Vpv) supplied by the photovoltaic panel (25), so as to protect the electronic control unit (15), by means of the first protection device (33), against an inversion of connection of the polarities of the battery (24), during the step of electrically connecting the battery (24) to the electronic control unit (15).

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