FR3092607A1 - Installation for a building comprising a concealment device, a window and a ventilation device - Google Patents

Abstract

Installation for a building comprising a blackout device, a window and a ventilation device An installation (100) comprises a blackout device (3), a window (25) and a ventilation device (24). The concealment device (3) comprises a trunk (9), a screen (2) and a motorized drive device (5). The ventilation device (24) includes an air inlet (37) and an air outlet (38). The motorized drive device (5) is configured to move the screen (2) until it reaches a first or second predetermined ventilation position (VH, VB). The air inlet (37) and the air outlet (38) are provided respectively in walls (9a, 9b) separate from the trunk (9). When the screen (2) is in a first or a second end-of-travel position (FdCH, FdCB), the air inlet (37) is configured to be obstructed by a part of the screen (2), so as to reduce a circulation of the air flow (F) passing through the ventilation device (24). Figure for abstract: Figure 4.

Description

Installation for a building comprising a screening device, a window and a ventilation device

The present invention relates to an installation for a building.

In general, the present invention relates to the field of concealment devices comprising a motorized drive device moving a screen between at least a first position and at least a second position.

A motorized drive device includes an electromechanical actuator for a mobile closing, shading or solar protection element such as a shutter, a door, a blind or any other equivalent material, hereinafter called a screen.

Document FR 3 046 685 A1 is already known, which describes an installation for a building comprising a screening device, a window and a ventilation device. The concealment device includes a box, a screen and a motorized driving device. The screen is disposed at least in part inside the trunk, in an assembled configuration of the installation. The screen is configured to be moved between a first end position and a second end position by means of the motorized drive device. The motorized drive device consists of an electromechanical actuator and an electronic control unit. The window comprises a fixed frame and a sash. The ventilation device includes an air inlet and an air outlet. The air inlet is provided between the screen of the dimming device and the window, in the assembled configuration of the installation. The motorized drive device is configured to move the screen until it reaches a first or a second predetermined ventilation position. The first predetermined ventilation position is remote from the first end-of-travel position and arranged between the first and second end-of-travel positions. The second predetermined ventilation position is remote from the second end-of-travel position and arranged between the first and second end-of-travel positions.

However, this installation has the disadvantage of using a device for controlling the ventilation device, of which a first sub-assembly is connected to the screen and a second sub-assembly is connected to a closing flap of a member air inlet with controllable air passage section of the ventilation device. The first sub-assembly is configured to cooperate with the second sub-assembly during a movement of the screen implemented by the motorized drive device, so as to control the positioning of the shutter shutter of the organ air inlet with controllable air passage section. The first subassembly includes a magnetic element and the second subassembly includes another magnetic element.

Consequently, this home automation installation has a ventilation device control device which is necessary to allow the cooperation of the first subassembly with the second subassembly.

The cost of obtaining the installation is therefore high, due to the presence of the control device of the ventilation device.

In addition, an adjustment is necessary on a construction site, during commissioning of the installation, to adapt the positioning of the first sub-assembly connected to the screen with respect to the second sub-assembly connected to the closing shutter of the air inlet member with controllable air passage section of the ventilation device, in particular when the screening device and the window are manufactured by different manufacturers.

Furthermore, the use of a concealment device, in particular a rolling shutter, which is increasingly airtight in order to improve the thermal insulation of a building, in particular at the level of a trunk of the latter, in an installation generates a strong limitation, or even a blockage, of a flow of air flowing through a ventilation device, when a final slat of a screen of the screening device is in a position of limit switch, called low.

In such a case, the ventilation device comprises an air inlet member with a controllable air passage section, which may be of the humidity-controlled type. In addition, the air inlet member with controllable air passage section comprises a shutter.

Consequently, the flow of air flowing through the ventilation device may have an insufficient air flow to renew the air inside a building because of the sealing of the concealment device. not allowing the passage of a sufficient air leak between the blades of a screen of the concealment device, the trunk, the lateral guiding slides of the screen and a threshold of an opening of the building.

The shutter of the air inlet member with controllable air passage section is controlled, in particular by means of a member sensitive to humidity, so as to regulate an air flow of the flow of air flowing from the exterior of the building to the interior of the building.

To remedy such a situation, when the air flow of the air flow, which can be measured by a sensor, is not sufficient to renew the air inside the building or when a level value of air quality inside the building measured by a sensor exceeds a threshold value, while the closing flap of the air inlet member with controllable air passage section is in a ventilation position maximum, the screen of the concealment device can be moved to a position offset from the lower end-of-travel position, by means of a motorized drive device, so as to allow air to pass between the threshold of the building opening and a final end blade of the screen and to increase the airflow rate of the airflow flowing through the ventilation device.

Nevertheless, such a control of the motorized drive device causes a degradation of the sealing of the screening device and therefore of the thermal insulation of the installation, since an air passage is provided between the threshold of the opening of the building and the final end slat of the screen, to allow air circulation through the ventilation device, while the ventilation device is equipped with the air inlet member with a section of controllable air passage.

The cost of obtaining the installation is therefore high, due to the presence of the air inlet member with a controllable air passage section, while degrading the thermal insulation performance of the installation.

The object of the present invention is to solve the aforementioned drawbacks and to propose an installation comprising a concealment device, a window and a ventilation device, making it possible to simplify the elements constituting this installation, while guaranteeing satisfactory thermal insulation performance. of the installation and minimizing the costs of obtaining the installation.

In this respect, the present invention relates to an installation for a building comprising:

• a concealment device,
• a window, and
• a ventilation device,

the concealment device comprising at least:

- a safe,

- a screen, the screen being arranged at least partly inside the safe, in an assembled configuration of the installation, and

- a motorized drive device, the screen being configured to be moved between a first end-of-travel position and a second end-of-travel position by means of the motorized drive device,

the motorized drive device comprising at least:

- an electromechanical actuator, and

- an electronic control unit,

the ventilation device comprising at least one air inlet and at least one air outlet,

the motorized drive device being configured to move the screen until it reaches a first or a second predetermined ventilation position, the first predetermined ventilation position being distant from the first end-of-travel position and disposed between the first and second end-of-travel positions, the second predetermined ventilation position being remote from the second end-of-travel position and disposed between the first and second end-of-travel positions.

According to the invention, the air inlet and the air outlet of the ventilation device are formed respectively in separate walls of the trunk. Furthermore, when the screen is in the first end-of-travel position or in the second end-of-travel position, the air inlet of the ventilation device is configured to be obstructed by a part of the screen, so as to reduce circulation of the air flow passing through the ventilation device, from the air inlet to the air outlet.

Thus, such an installation is simple to implement and makes it possible to improve the control of the regulation of the flow of air flowing through the ventilation device, from the exterior of the building towards the interior of the building. , and, more particularly, to improve the control of a level of humidity inside the building, while guaranteeing satisfactory thermal insulation performance of the installation and minimizing the costs of obtaining the installation.

In this way, a regulation of the flow of air flowing through the ventilation device is implemented directly through the motorized drive device by moving the screen between the first limit position, respectively the second end-of-travel position, and the first predetermined ventilation position, respectively the second predetermined ventilation position, and vice versa.

Such movement of the screen, by means of the motorized drive device, between the first end-of-travel position, respectively the second end-of-travel position, and the first predetermined ventilation position, respectively the second predetermined ventilation position , makes it possible to simply increase the air flow rate of the air flow through the ventilation device provided in the trunk of the screening device.

In addition, such an installation is particularly advantageous in the case where the concealment device has high sealing characteristics, in particular at the level of the boot, when the screen is in the first end-of-travel position or in the second end position.

In such an installation, the ventilation device advantageously does not have an air inlet member with a controllable air passage section. Such an air inlet member with a controllable air passage section is generally arranged at the level of an internal face of a wall of the building. Thus, the aesthetic appearance of the building is improved, since the ventilation device according to the invention, in particular the air outlet, does not protrude or only slightly protrudes inside the building.

Furthermore, the ventilation device is formed and, more particularly, constituted by the trunk of the concealment device, in particular by the walls of the latter, the air inlet of the ventilation device of which is formed in a first wall trunk and the air outlet of the ventilation device is formed in a second wall of the trunk. The first trunk wall is different from the second trunk wall.

Preferably, the screen comprises at least one final end slat.

According to an advantageous characteristic of the invention, when the screen is in the first end-of-travel position, the air inlet of the ventilation device is configured to be partially obstructed by the final end slat of the screen. .

According to another advantageous characteristic of the invention, the screen comprises a plurality of blades. Furthermore, when the screen is in the second limit position, the air inlet of the ventilation device is configured to be partially obstructed by one of the blades of the screen.

According to another advantageous characteristic of the invention, the air inlet of the ventilation device corresponds to at least part of a slot in the trunk. In addition, the trunk slot is also configured to allow passage of the screen when it is moved, by means of the motorized drive device.

According to another advantageous characteristic of the invention, when the screen is in the first end-of-travel position, a minimum flow of the air flow through the ventilation device is guaranteed by a spacing between the final end slat of the screen and one of the trunk walls.

According to another advantageous characteristic of the invention, when the screen is in the second end-of-travel position, a minimum flow of the air flow through the ventilation device is guaranteed by a bearing of the blade of final end of the screen against a threshold of an opening in the building, so as to locally deform the screen inside the trunk and at the level of the air inlet.

According to another advantageous characteristic of the invention, the screen comprises a movable blade, the movable blade being configured to be moved between a first position and a second position. In the assembled configuration of the installation, when the mobile blade of the screen is in the first position, the latter extends in the extension of the screen, and, when the mobile blade of the screen is in the second position, it extends in a direction inclined relative to the screen. In addition, when the screen is in the second end-of-travel position, a minimum flow of the air flow through the ventilation device is guaranteed by an air passage provided between the mobile blade of the screen and a wall of the air inlet of the ventilation device.

According to another advantageous characteristic of the invention, the installation comprises at least one control unit configured to communicate with the electronic control unit of the motorized drive device, so as to move the screen, between the first and second end-of-travel positions and the first and second predetermined ventilation positions, as a function of at least one signal transmitted by the control unit.

According to another advantageous characteristic of the invention, the installation comprises at least one sensor configured to communicate with the electronic control unit of the motorized drive device, so as to move the screen, between the first and second positions of limit switch and the first and second predetermined ventilation positions, as a function of at least one signal emitted by the sensor.

According to another advantageous characteristic of the invention, the installation comprises a controlled mechanical ventilation device. In addition, the controlled mechanical ventilation device is configured to generate an air depression between the interior of the building and the exterior of the building, so as to generate the air flow through the ventilation device.

According to another advantageous characteristic of the invention, when moving the screen between the first end-of-travel position, respectively the second end-of-travel position, and the first predetermined ventilation position, respectively the second predetermined position ventilation, and vice versa, by means of the motorized drive device, the electronic control unit is configured to control the electromechanical actuator at a reduced speed setpoint relative to a nominal speed setpoint.

Other particularities and advantages of the invention will appear further in the description below, made with reference to the appended drawings, given by way of non-limiting examples:

Figure 1 is a schematic cross-sectional view of an installation according to a first embodiment of the invention;

Figure 2 is a schematic perspective view of the installation illustrated in Figure 1;

Figure 3 is a schematic view in axial and partial section of the installation illustrated in Figures 1 and 2, showing an electromechanical actuator of the installation;

Figure 4 is a schematic cross-sectional view of the installation illustrated in Figures 1 to 3, in a direction opposite to that of Figure 1, where a final end blade of a screen of a screening device of the installation is in a first end-of-travel position, called high;

FIG. 5 is a view similar to FIG. 4, where the final end slat of the screen is in a first predetermined ventilation position, called high, offset with respect to the first end-of-travel position;

FIG. 6 is a view similar to FIGS. 4 and 5, where the final end blade of the screen is in a second end-of-travel position, called low;

FIG. 7 is a view similar to FIGS. 4 to 6, where the final end slat of the screen is in a second predetermined ventilation position, called low, offset with respect to the second end-of-travel position;

FIG. 8 is a view similar to FIG. 6, according to a second embodiment of the invention, where the final end slat of the screen is in the second end-of-travel position, called low; and

FIG. 9 is a view similar to FIG. 7, according to the second embodiment of the invention, where the final end slat of the screen is in the second predetermined ventilation position, called low, offset with respect to the second end position.

We first describe, with reference to Figures 1 and 2, an installation 100 according to a first embodiment of the invention and installed in a building B comprising a screening device 3, a window 25 and a device for ventilation 24.

The installation 100 comprises an opening 1 equipped with a screen 2 belonging to the concealment device 3, in particular a motorized rolling shutter.

The concealment device 3 can be a rolling shutter, a blind in fabric or with adjustable slats, or even a rolling gate. The present invention applies to all types of concealment device.

The screen 2 is arranged on the exterior side of the window 25, in an assembled configuration of the installation 100, that is to say arranged outside the building B.

Window 25 is located at opening 1 in Building B. For clarity of the drawing, window 25 is omitted in Figure 2.

The window 25 can be a sliding window, which can be, in particular, sliding only or sliding and lifting, a casement window, a tilt window or a tilt-and-turn window. The present invention applies to all types of window. Window 25 can also be called bay.

The window 25 comprises at least one fixed frame 32 and, optionally, at least one opening 26.

Here, the window 25 comprises a single opening 26.

The number of window openings is not limiting and may be different. It may, in particular, be greater than or equal to two. In such a case, the two or more opening elements cooperate together, in particular when these are brought into a closed position with respect to the fixed frame.

The opening 26 comprises a frame, not shown. The sash 26 can also comprise at least one pane arranged in the frame of the sash 26.

The number of panes of the opening is not limiting and can be different. It may, in particular, be greater than or equal to two.

Is described, with reference to Figures 1 and 2, a roller shutter according to the first embodiment of the invention.

The screen 2 of the screening device 3 is rolled up on a rolling tube 4 driven by a motorized drive device 5, illustrated in FIGS. 2 and 3. The screen 2 is movable between a rolled up position, in particular a first end-of-travel position FdCH, called high, and an unwound position, in particular a second end-of-travel position FdCB, called low, by means of the motorized drive device 5.

Here, installation 100 includes motor drive device 5.

The mobile screen 2 of the concealment device 3 is a closing, concealment and/or solar protection screen, being rolled up on the winding tube 4, the internal diameter of which is substantially greater than the external diameter of a electromechanical actuator 11, so that the electromechanical actuator 11 can be inserted into the winding tube 4, when assembling the occultation device 3.

The motorized drive device 5 comprises the electromechanical actuator 11, in particular of the tubular type, making it possible to set the winding tube 4 in rotation, so as to move, in particular unroll or roll up, the screen 2 of the device. concealment 3.

The dimming device 3 includes the winding tube 4 for rolling up or unrolling the screen 2. In the mounted state, the electromechanical actuator 11 is inserted into the winding tube 4.

In known manner, the roller shutter, which forms the concealment device 3, comprises an apron comprising horizontal slats 39 hinged to each other, forming the screen 2 of the roller shutter 3, and guided by two side slides 6. These blades 39 are contiguous when the apron 2 of the roller shutter 3 reaches the second end-of-travel position FdCB, called low.

Here and in particular in the case of a rolling shutter, the first end-of-travel position FdCH, also called the rolled-up high position, corresponds to the bearing of a final end slat 8, for example in the shape of a " T "inverted, as shown in Figures 4 to 7, or in the shape of an "L", as shown in Figure 1, of the apron 2 of the roller shutter 3 against an edge of a box 9 of the roller shutter 3 or at the stoppage of the final end slat 8 in a programmed top end-of-travel position. In addition, the second end-of-travel position FdCB, also called the unrolled low position, corresponds to the resting of the final end slat 8 of the apron 2 of the roller shutter 3 against a threshold 7 of the opening 1 or to stopping the final end slat 8 in a programmed lower limit position.

Here, concealment device 3 includes safe 9.

A first slat 41 of the apron 2 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 rigid attachment piece, in particular in the form of a band. Or the joints 10 of the shutter 3 can also be called "lock".

Here, the roller shutter 3 comprises two joints 10 configured to connect the first slat 41 of the apron 2 to the winding tube 4.

The number of roller shutter joints is not limiting and can be different. It may, in particular, be greater than or equal to three.

The winding tube 4 is arranged inside the box 9 of the roller shutter 3. The apron 2 of the roller shutter 3 is rolled up and unrolled around the winding tube 4 and is housed at least in part at the trunk interior 9.

In general, the trunk 9 is arranged above the opening 1, or even in the upper part of the opening 1.

Here and in no way limiting, the trunk 9 is parallelepipedic in shape.

Advantageously, the trunk 9 comprises a bottom wall 9a, a rear wall 9b, an upper wall 9c, a front wall 9d, a first side wall 9e and a second side wall 9f.

In the assembled configuration of the installation 100, the lower wall 9a of the box 9 faces the threshold 7 of the opening 1 of the building B. The rear wall 9b of the box 9 is oriented towards the interior of the building B. , the front wall 9d of the trunk 9 is oriented towards the outside of the building B.

The motor drive device 5 is controlled by a control unit. The control unit can be, for example, a local control unit 12.

The local control unit 12 can be connected by wired or wireless link with a central control unit 13. The central control unit 13 controls the local control unit 12, as well as other similar local control units and distributed in building B.

The motorized drive device 5 is preferably configured to execute the movement commands, in particular for unwinding or winding, of the screen 2 of the concealment device 3, which can be issued, in particular, by the unit local control unit 12 or the central control unit 13.

The 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.

We will now describe, in more detail and with reference to Figure 3, the motorized drive device 5, including the electromechanical actuator 11, belonging to the installation 100 of Figures 1 and 2.

The electromechanical actuator 11 comprises an electric motor 16.

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

Means for controlling the electromechanical actuator 11, allowing the movement of the screen 2 of the concealment device 3, consist of at least one electronic control unit 15. This electronic control unit 15 is capable of putting into operation the electric motor 16 of the electromechanical actuator 11, and, in particular, allow the electric power supply of the electric motor 16.

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.

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

By way of non-limiting example, the hardware means may include at least one microcontroller 31.

Advantageously, the electronic control unit 15 comprises at least a first communication module 27, in particular for receiving control orders, the control orders being transmitted by an order transmitter, such as the local control unit 12 or the central control unit 13, these commands being intended to control the motorized drive device 5.

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.

Advantageously, the first communication module 27 can also allow the reception of control commands transmitted by wired means.

The electronic control unit 15, the local control unit 12 and/or the central control unit 13 can be in communication with a remote weather station outside the building B, including, in particular, one or more sensors that can be configured to determine, for example, a temperature, a luminosity or even a wind speed.

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, so as to control the electromechanical actuator 11 according to data made available remotely via a communication network, in particular an Internet network that can be connected to the server 28.

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

By way of non-limiting examples, the selection elements can be push buttons or sensitive keys, the display elements can be light-emitting diodes, an LCD display (acronym of the Anglo-Saxon term "Liquid Crystal Display") or TFT (acronym of the Anglo-Saxon term “Thin Film Transistor”). The selection and display elements can also be realized by means of a touch screen.

Advantageously, the local 12 or central 13 control unit comprises at least one second communication module 36.

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

In addition, the second communication module 36 of the local 12 or central 13 control unit can also be configured to receive, in other words receives, control commands, in particular via the same means.

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

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

Advantageously, the local control unit 12 is a control point, which can be fixed or mobile. A fixed control point can be a control box intended to be fixed on a facade of a wall of building B or on one side of the fixed frame 32 of the window 25 or of a door. A nomadic control point can be a remote control, a smart phone or a tablet.

Advantageously, the local 12 or central 13 control unit also includes a controller 35.

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

The motorized drive device 5 can be controlled by the user, for example by receiving a control command corresponding to a press on the or one of the selection elements 14 of the local control unit 12 or center 13.

The motorized drive device 5 can also be controlled automatically, for example by receiving a control command corresponding to at least one signal coming from at least one sensor 40 and/or to a signal coming from a clock of the electronic control unit 15, in particular the microcontroller 31. The sensor 40 and/or the clock can be integrated into the local control unit 12 or the central control unit 13.

The electromechanical actuator 11 is supplied with electrical energy by a mains power supply network, or by means of a battery, which can be recharged, for example, by a photovoltaic panel.

Here, the electromechanical actuator 11 comprises an electrical power cable 18 allowing it to be supplied with electrical energy, either from the mains electrical supply network or from the battery.

A casing 17 of the electromechanical actuator 11 is preferably cylindrical in shape.

In one embodiment, the casing 17 is made of a metallic material.

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

Advantageously, the electromechanical actuator 11 also includes a reducer 19, a brake 29 and an output shaft 20.

By way of non-limiting example, the brake 29 can be a spring brake, a cam brake or an electromagnetic brake.

Here and as visible in Figure 3, the brake 29 is arranged between the electric motor 16 and the reducer 19, that is to say at the output of the electric motor 16.

Alternatively, not shown, the brake 29 can be placed at the output of the reducer 19, in other words between the reducer 19 and the output shaft 20, or placed between two reduction stages of the reducer 19.

The electromechanical actuator 11 may also include an end-of-travel and/or obstacle detection device, which may be mechanical or electronic.

Advantageously, the electric motor 16, the brake 29 and the reducer 19 are mounted inside the casing 17 of the electromechanical actuator 11.

The winding tube 4 is driven in rotation around the axis of rotation X and the casing 17 of the electromechanical actuator 11 while being supported via two pivot links. The first pivot connection is made at a first end of the winding tube 4 by means of a crown 30 inserted around a first end 17a of the casing 17 of the electromechanical actuator 11. The crown 30 thus makes it possible to make a landing. The second pivot connection, not shown in Figure 3, is made at a second end of the winding tube 4, not visible in this figure.

Advantageously, the electromechanical actuator 11 comprises a torque support 21. The torque support 21 can also be called the "fixed point" of the electromechanical actuator 11. The torque support 21 projects at the level of the first end 17a of the casing 17 of the electromechanical actuator 11, in particular the first end 17a of the casing 17 receiving the crown 30. The torque support 21 of the electromechanical actuator 11 thus makes it possible to fix the electromechanical actuator 11 on a frame 23, in particular one side of the chest 9.

In addition, the torque support 21 of the electromechanical actuator 11 can make it possible to close the first end 17a of the casing 17.

Furthermore, the torque support 21 of the electromechanical actuator 11 can make it possible to support the electronic control unit 15. The electronic control unit 15 can be supplied with electrical energy by means of the electrical supply cable 18.

Here, and as shown in Figure 3, the electronic control unit 15 is thus arranged, in other words integrated, inside the casing 17 of the electromechanical actuator 11.

Alternatively, not shown, the electronic control unit 15 is arranged outside the casing 17 of the electromechanical actuator 11 and, in particular, mounted on the frame 23 or in the torque support 21.

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.

Advantageously, 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 rotate a connecting element 22 connected to the winding tube 4. The connecting element 22 is made in the form of a wheel.

When the electromechanical actuator 11 is put into operation, the electric motor 16 and the reducer 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 22.

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

With reference to Figures 4 to 7, the ventilation device 24 belonging to the installation 100 illustrated in Figures 1 to 3 is described.

The ventilation device 24 is configured so that an air flow F flows between the exterior and the interior of the building B, in particular from the exterior towards the interior of the building B, with a flow rate of air adapted according to a position of the screen 2 with respect to the trunk 9 and, more particularly, with respect to the opening 1 of the building B.

The airflow F is represented in FIGS. 4 to 9 by one or more dotted lines.

The ventilation device 24 comprises at least one air inlet 37 and at least one air outlet 38.

Advantageously, the air inlet 37 is arranged at least in part between the screen 2 of the screening device 3 and the window 25, in particular the fixed frame 32 of the window 25, in the assembled configuration of the installation. 100.

The air inlet 37 and the air outlet 38 of the ventilation device 24 are formed respectively in separate walls 9a, 9b of the box 9.

Thus, the ventilation device 24 is integrated into the trunk 9.

In this way, the ventilation device 24 makes it possible to create a direct fluid communication between the exterior and the interior of the building B through the box 9. The flow of the air flow F is thus implemented through the ventilation device 24 between a wall 9a of the trunk 9, in particular the lower wall 9a of the trunk 9, facing the outside of the building B and a wall 9b of the trunk 9, in particular the rear wall 9b of the trunk 9, forming facing the interior of building B.

The trunk 9 therefore makes it possible to create a conduit for the circulation of the air flow F between the air inlet 37 and the air outlet 38 opening respectively into one of the walls 9a, 9b thereof.

Here, the ventilation device 24 comprises a single air inlet 37 and a single air outlet 38.

The number of air inlets and air outlets is not limiting and may be different. It may, in particular, be greater than or equal to two.

Advantageously, the air inlet 37 of the ventilation device 24 is arranged in the lower wall 9a of the trunk 9.

The motorized drive device 5 is configured to move the screen 2 until reaching and, more particularly, until the final end slat 8 of the screen 2 reaches a first or a second predetermined position of ventilation VH, VB. The first predetermined ventilation position VH is distant from the first end-of-travel position FdCH and arranged between the first and second end-of-travel positions FdCH, FdCB. In addition, the second predetermined ventilation position VB is distant from the second end-of-travel position FdCB and arranged between the first and second end-of-travel positions FdCH, FdCB.

Thus, the first predetermined ventilation position VH corresponds to a predetermined upper position of the screen 2 preceding the first end-of-travel position FdCH, following the direction of movement of the screen 2 from the second end-of-travel position FdCB towards the first end-of-travel position FdCH, in other words following the upward direction of the screen 2. In addition, the second predetermined ventilation position VB corresponds to a predetermined low position of the screen 2 preceding the second end-of-ventilation position end of run BdCB, following the direction of movement of the screen 2 from the first end-of-run position FdCH to the second end-of-run position BdCB, in other words following the direction of descent of the screen 2.

In this way, the first predetermined ventilation position VH, respectively the second predetermined ventilation position VB, is offset with respect to the first end-of-travel position FdCH, respectively the second end-of-travel position FdCB, between the first and second limit positions FdCH, FdCB.

When the screen 2 is in the first end-of-travel position FdCH or in the second end-of-travel position FdCB, the air inlet 37 of the ventilation device 24 is configured to be obstructed, in particular partially, by a part of the screen 2, so as to reduce circulation of the air flow F passing through the ventilation device 24, from the air inlet 37 to the air outlet 38.

Thus, the installation 100 is simple to implement and makes it possible to improve the control of the regulation of the flow of air F flowing through the ventilation device 24, from the outside of the building B towards the interior of the building B, and, more particularly, to improve the control of a level of humidity inside the building B, while guaranteeing satisfactory thermal insulation performance of the installation 100 and minimizing the costs of obtaining the installation 100.

In this way, a regulation of the flow of air F flowing through the ventilation device 24 is implemented directly through the motorized drive device 5 by moving the screen 2 and, more particularly, the blade d final end 8 of the screen 2 between the first end-of-travel position FdCH, respectively the second end-of-travel position FdCB, and the first predetermined position of ventilation VH, respectively the second predetermined position of ventilation VB, and vice versa.

Such a displacement of the screen 2 and, more particularly, of the final end slat 8 of the screen 2, by means of the motorized drive device 5, between the first limit position FdCH, respectively the second limit position FdCB, and the first predetermined ventilation position VH, respectively the second predetermined ventilation position VB, makes it possible to simply increase the air flow rate of the air flow F through the ventilation device 24 provided in the trunk 9 of the concealment device 3.

In addition, the installation 100 is particularly advantageous in the case where the concealment device 3 has high sealing characteristics, in particular at the level of the trunk 9, when the screen 2 and, more particularly, the blade of final end 8 of screen 2 is in the first limit position FdCH or in the second limit position FdCB.

Here, the ventilation device 24 does not have an air inlet member with a controllable air passage section. Such an air inlet member with a controllable air passage section is generally arranged at the level of an internal face of a wall of the building B. Thus, the aesthetic appearance of the building B is improved, since the device ventilation 24 according to the invention, in particular the air outlet 38, does not protrude or only slightly inside the building B.

Furthermore, the ventilation device 24 is arranged and, more particularly, constituted by the box 9 of the concealment device 3, in particular by the walls 9a, 9b, 9c, 9d, 9e, 9f of the latter, whose the air inlet 37 of the ventilation device 24 is formed in a first wall 9a of the trunk 9 and the air outlet 38 of the ventilation device 24 is formed in a second wall 9b of the trunk 9. The first wall 9a of the trunk 9 is different from the second wall 9b of the trunk 9.

Advantageously, the circulation of the air flow F passing through the ventilation device 24, from the air inlet 37 to the air outlet 38, when the screen 2 is in the first position at the end of stroke FdCH, respectively in the second end-of-stroke position FdCB, is reduced with respect to a circulation of the air flow F passing through the ventilation device 24, from the air inlet 37 to the outlet of air 38, when the screen 2 is in the first predetermined position of ventilation VH, respectively the second predetermined position of ventilation VB.

Advantageously, the circulation of the air flow F passing through the ventilation device 24, from the air inlet 37 to the air outlet 38, when the screen 2 is in the first position at the end of stroke FdCH, respectively in the second end-of-stroke position FdCB, has a first value, called reduced, which is less than a second value, called nominal, of the circulation of the air flow F passing through the ventilation device 24, at from the air inlet 37 to the air outlet 38, when the screen 2 is in the first predetermined ventilation position VH, respectively in the second predetermined ventilation position VB.

The first and second values of the circulation of the air flow F passing through the ventilation device 24 can be expressed, for example, by an air flow rate value.

Advantageously, the first value of the circulation of the air flow F passing through the ventilation device 24, when the screen 2 is in the first end-of-travel position FdCH, can be identical to or different from the first value of the circulation of the flow of air F passing through the ventilation device 24, when the screen 2 is in the second limit position FdCB. In addition, the second value of the circulation of the air flow F passing through the ventilation device 24, when the screen 2 is in the first predetermined ventilation position VH, can be identical to or different from the second value of the circulation of the airflow F passing through the ventilation device 24, when the screen 2 is in the second predetermined ventilation position VB.

Advantageously, the ventilation device 24 is, in other words is configured to be, in fluid communication with a space E formed between the screen 2 of the screening device 3 and the window 25, by means of the air inlet 37 of the concealment device 3, in the assembled configuration of the installation 100.

Advantageously, the trunk 9 comprises a slot 33 configured to allow the passage of the screen 2 during a displacement thereof, by means of the motorized drive device 5, in particular during a winding or a unwinding thereof relative to the winding tube 4. The reference 33 is illustrated in Figure 2 but not in Figures 4 to 7 to facilitate reading thereof.

Advantageously, the air inlet 37 of the ventilation device 24 corresponds at least to a part of the slot 33 of the trunk 9.

When the screen 2 is in one of the first or second predetermined ventilation positions VH, VB, the air inlet 37 of the ventilation device 24 is partially obstructed by the screen 2, in particular by one of the blades 39 of the screen 2, according to a first minimum volume determined by a height of the air inlet 37 and by a width and a thickness of the screen 2, so that the airflow of the flow of air F has a nominal value.

Thus, when the screen 2 is in one of the first or second predetermined ventilation positions VH, VB, the obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of the slot 33 of the trunk 9 is minimal.

Here, the first volume of obstruction of the air inlet 37 by the screen 2 is minimal, since the screen 2 is suspended by the winding tube 4 in a vertical direction generated by the weight of the blades 39 of screen 2.

When the screen 2 is in the first end-of-travel position FdCH or in the second end-of-travel position FdCB, the air inlet 37 of the ventilation device 24 is partially obstructed by the screen 2, in particular by the final end slat 8 of the screen 2 or by the first slat 41 or one of the slats 39 of the screen 2, according to a second volume greater than the first volume, so that the airflow of the flow of air F has a reduced value compared to its nominal value.

Thus, when the screen 2 is in the first end-of-travel position FdCH or in the second end-of-travel position FdCB, the obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of slot 33 of trunk 9 is larger than when screen 2 is in one of the first or second predetermined ventilation positions VH, VB.

Such obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of the slot 33 of the box 9 may be due to a shape of the final end slat 8 of the screen 2, in particular in shape of an inverted "T", when the screen 2 is in the first limit position FdCH, or of one of the blades 39 of the screen 2, in particular in the shape of a "+", when the screen 2 is in the first end-of-travel position FdCH or in the second end-of-travel position FdCB.

Alternatively, not shown, the obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of the slot 33 of the trunk 9 may be due to a greater thickness of the final end blade 8 screen 2 with respect to the other slats 39 of screen 2, when screen 2 is in the first limit position FdCH, or of one of the slats 39 of screen 2 with respect to the slats 39 of the screen 2, when the screen 2 is in the first end position FdCH or in the second end position FdCB.

Here, the thickness of the screen 2 and, more particularly, of the final end blade 8 of the screen 2 or of the blades 39 of the screen 2 is defined by a length extending in a direction perpendicular to a surface of the screen 2 configured to obstruct the opening 1 of the building B.

Alternatively, not shown, the obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of the slot 33 of the trunk 9 may be due to a tilting of the final end blade 8 of the screen 2 with respect to the other blades 39 of the screen 2 by means of a mechanism, in particular a cam or lever mechanism, when the screen 2 is in the first limit position FdCH, or of one of the blades 39 of the screen 2 with respect to the blades 39 of the screen 2 by means of a mechanical device, in particular a cam or lever device, when the screen 2 is in the first limit position FdCH or in the second end position BdCB.

When the screen 2 is in the first end-of-travel position FdCH or in the second end-of-travel position FdCB, the installation 100 is thus configured to allow a minimum flow of the air flow F through the ventilation device 24.

The minimum flow of the air flow F through the ventilation device 24 can be defined by a minimum section at the level of the air inlet 37.

Thus, the renewal of air inside building B is guaranteed at the level of opening 1 or of each opening 1 of building B equipped with a screening device 3 and a ventilation device 24.

Advantageously, when the screen 2 is in one of the first or second predetermined ventilation positions VH, VB, the air inlet 37 of the ventilation device 24 is configured to be unobstructed, in particular partially, by a part of the screen 2, so as to increase circulation of the air flow F passing through the ventilation device 24, from the air inlet 37 to the air outlet 38.

Here, when the screen 2 is in the first end-of-travel position FdCH or in the second end-of-travel position FdCB, the obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of the slot 33 of the trunk 9 by a part of the screen 2 is thus greater when the screen 2 is in one of the first or second predetermined ventilation positions VH, VB.

Advantageously, when the screen 2 is in the first limit position FdCH, the air inlet 37 of the ventilation device 24 is configured to be obstructed, in particular partially, by the final end blade 8 of the screen 2.

Advantageously, when the screen 2 is in the second limit position FdCB, the air inlet 37 of the ventilation device 24 is configured to be obstructed, in particular partially, by the first blade 41 or one of the blades 39 of screen 2.

The screen 2 can thus take up at least four positions, in the assembled configuration of the installation 100, namely:

• the first end-of-travel position FdCH, as illustrated in FIG. 4, in which the air inlet 37 of the ventilation device 24 is configured to be obstructed, in particular partially, by a part of the screen 2 , in particular by the final end slat 8 of the screen 2,
• the first predetermined ventilation position VH, as illustrated in FIG. 5, in which the air inlet 37 of the ventilation device 24 is configured to be unobstructed, in particular partially, by a part of the screen 2, in particular with respect to the final end slat 8 of the screen 2,
• the second limit position FdCB, as illustrated in FIG. 6, in which the air inlet 37 of the ventilation device 24 is configured to be obstructed, in particular partially, by a part of the screen 2 , in particular by the first blade 41 or one of the blades 39 of the screen 2, and
• the second predetermined ventilation position VB, as illustrated in FIG. 7, in which the air inlet 37 of the ventilation device 24 is configured to be unobstructed, in particular partially, by part of the screen 2, in particular with respect to the first blade 41 or one of the blades 39 of the screen 2.

Advantageously, when the screen 2 is in the first end-of-travel position FdCH or in the second end-of-travel position FdCB, an air passage section at the level of the air inlet 37 of the ventilation device 24 is of the order of 5cm².

Advantageously, when the screen 2 is in one of the first or second predetermined ventilation positions VH, VB, an air passage section at the level of the air inlet 37 of the ventilation device 24 is order from 25cm² to 40cm².

Advantageously, the air outlet 38 of the ventilation device 4 has an air passage section of the order of 25cm² to 40cm², in other words equivalent to the air passage section at the level of the air inlet. 37 of the ventilation device 24, when the screen 2 is in one of the first or second predetermined ventilation positions VH, VB.

Advantageously, between the first predetermined ventilation position VH and the second predetermined ventilation position VB, the air flow of the air flow F passing through the ventilation device 24, from the air inlet 37 to the air outlet 38, is equivalent to that obtained in the first and second predetermined ventilation positions VH, VB, that is to say that the air flow of the air flow F is not reduced by part of the screen 2 obstructing the air inlet 37 of the ventilation device 24.

Thus, the air flow of the air flow F circulating in the ventilation device 24, from the outside of the building B to the inside of the building B, is increased, so as to promote the renewal of air inside building B, while limiting the heat and light from the sun through window 25, in particular in summer.

Advantageously, when the screen 2 is in the first end-of-travel position FdCH, the minimum flow of the air flow F through the ventilation device 24 is guaranteed by a spacing LHmin between the final end slat 8 of the screen 2 and one of the walls 9a of the trunk 9, in particular the wall 9a of the trunk 9 in which the air inlet 37 is formed and, more particularly, the lower wall 9a of the trunk 9, as illustrated in Figure 4.

Thus, the minimum flow of the air flow F through the box 9 can be implemented from the air inlet 37 to the air outlet 38 of the ventilation device 24.

In this way, an air circulation at a reduced air flow is implemented from the exterior of building B to the interior of building B by means of the ventilation device 24.

Alternatively, not shown, when the screen 2 is in the first limit position FdCH, the minimum flow of the air flow F through the ventilation device 24 is guaranteed by a shape of the slot 33 of the trunk 9, so as not to be entirely obstructed by the final end slat 8 of the screen 2, and/or by a shape of the final end slat 8 of the screen 2, so as not to entirely obstruct the slot 33 of the trunk 9, and/or by an opening made in a seal, not shown, fixed to the lower wall 9a of the trunk 9 or to the final end slat 8 of the screen 2 , so as to create an air leak between the final end slat 8 of the screen 2 and the lower wall 9a of the trunk 9.

Advantageously, when the screen 2 is in the second end-of-travel position FdCB, the minimum flow of the air flow F through the ventilation device 24 is guaranteed by at least one air passage provided between one or the two side rails 6 and the screen 2.

Thus, the minimum flow of the air flow F through the box 9 can be implemented from the air inlet 37 to the air outlet 38 of the ventilation device 24, since the air inlet 37 formed in one of the walls 9a of the box 9, in particular in the lower wall 9a of the box 9, is not completely obstructed by the final end slat 8 of the screen 2.

In this way, an air circulation at a reduced air flow is implemented from the exterior of building B to the interior of building B by means of the ventilation device 24.

Advantageously, when the screen 2 is in the second end-of-travel position FdCB, the minimum flow of the air flow F through the ventilation device 24 is guaranteed by a bearing of the final end slat 8 of the screen 2 against the threshold 7 of the opening 1, so as to locally deform the screen 2 inside the trunk 9 and at the level of the air inlet 37, in particular at the level of the wall lower 9a of the trunk 9 and also towards the outside of the building B, as shown in Figure 6.

Thus, the flow of air F flowing through the air passage(s) provided between one or both side slides 6 and the screen 2 can continue to flow between the screen 2 and the window 25 at the level of space E, inside the box 9 by crossing the air inlet 37 of the ventilation device 24, then inside the building B via the air outlet 38 of the ventilation device 24, while being reduced by the section constriction at the level of the air inlet 37 of the ventilation device 24 generated by the local deformation of the screen 2 inside the box 9.

In this way, the local deformation of the screen 2 inside the box 9, in particular towards the outside of the building B, makes it possible to bear the first blade 41 or at least one of the blades 39 of the screen 2 against one face of the side slides 6, in particular oriented towards the outside of the building B, so as to obstruct part of the slot 33 of the box 9 and, consequently, part of the air inlet 37 of the ventilation device 24 by means of a part of the screen 2, while maintaining an air flow circulation zone F inside this slot 33.

Advantageously, a command to move the screen 2 between the first end-of-travel position FdCH and the first ventilation position VH, and vice versa, and a command to move the screen 2 between the second end-of-travel position FdCB and the second ventilation position VB, and vice versa, make it possible to regulate the flow of the air flow F between the exterior and the interior of the building B through the ventilation device 24 provided at the level of the trunk 9.

The control for moving the screen 2 between the first end-of-travel position FdCH and the first ventilation position VH, and vice versa, and the control for moving the screen 2 between the second end-of-travel position FdCB and the second ventilation position VB, and vice versa, are implemented by means of the motorized drive device 5 and, more particularly, of the electromechanical actuator 11 and the electronic control unit 15.

Advantageously, when the screen 2 moves between the first end-of-travel position FdCH, respectively the second end-of-travel position FdCB, and the first predetermined ventilation position VH, respectively the second predetermined ventilation position VB, and conversely, by means of motorized drive device 5, electronic control unit 15 is configured to control electromechanical actuator 11 at a reduced speed setpoint relative to a nominal speed setpoint.

In this way, these movement commands are implemented by controlling the electromechanical actuator 11 at the reduced speed setpoint, in particular the electric motor 16 of the electromechanical actuator 11, so as to minimize the noise induced by this maneuver.

Advantageously, these displacement commands are implemented by a pulse width modulation command of the electromechanical actuator 11 and, more particularly, of the electric motor 16 of the electromechanical actuator 11. A pulse width modulation command pulses is generally called by the acronym “MLI” in French and by the acronym “PWM” in English meaning “Pulse Width Modulation”.

In such a case, the electric motor 16 of the electromechanical actuator 11 can be of the electronically commutated brushless direct current type, also called "BLDC" (acronym of the English term BrushLess Direct Current) or "permanent magnet synchronous ".

The positioning of the screen 2 in the first limit position FdCH makes it possible to limit the heat losses inside the building B, by a minimum flow of the air flow F through the ventilation device 24, while taking advantage of the heat and light provided by the sun through window 25.

The positioning of the screen 2 in the first ventilation position VH makes it possible to increase the air flow of the air flow F circulating in the ventilation device 24, from the exterior of the building B towards the interior. of the building B, so as to promote the renewal of air inside the building B, while taking advantage of the heat and light provided by the sun through the window 25, in particular during the day.

The positioning of the screen 2 in the second end-of-travel position FdCB makes it possible to limit the heat losses inside the building B, by a minimum flow of the flow of air F through the ventilation device 24, while now Building B in darkness.

The positioning of the screen 2 in the second ventilation position VB makes it possible to increase the air flow of the air flow F circulating in the ventilation device 24, from the exterior of the building B towards the interior of building B, so as to favor the renewal of air inside building B, while keeping building B in the dark, in particular at night.

Advantageously, the first end-of-travel position FdCH and the first ventilation position VH are separated by a first predetermined distance, according to a displacement path of the screen 2, as visible in FIGS. 4 and 5. In addition, the second end-of-travel position FdCB and the second ventilation position VB are separated by a second predetermined distance, according to the displacement path of the screen 2, as visible in Figures 6 and 7.

Advantageously, each of the first and second predetermined spacings are of low amplitude, such as, for example, of the order of 1% to 2% of the displacement travel of the screen 2 between the first end-of-travel position FdCH and the second limit position BdCB.

Thus, the movement of the screen 2 between the first end-of-travel position FdCH and the first ventilation position VH, and vice versa, and between the second end-of-travel position FdCB and the second ventilation position VB, and vice versa, are discreet, so as not to be perceptible or at least hardly perceptible by an occupant of building B.

The first and second predetermined spacings can have the same value or a different value.

Advantageously, the first predetermined spacing between the first end-of-travel position FdCH and the first ventilation position VH is determined so as to allow a flow of the air flow F between the lower wall 9a of the trunk 9 and the end slat end 8 of screen 2, then through the air inlet 37 of the ventilation device 24 formed by at least part of the slot 33 of the box 9.

Advantageously, the second predetermined spacing between the second end-of-travel position FdCB and the second ventilation position VB is determined so as to allow a flow of the air flow F between the threshold 7 of the opening 1 and the blade of final end 8 of the screen 2 and/or through the openings between the blades of the screen 2, then through the air inlet 37 of the ventilation device 24 formed by at least part of the slot 33 trunk 9.

Advantageously, the first end-of-travel position FdCH, the second end-of-travel position FdCB, the first ventilation position VH and the second ventilation position VB are determined by learning, in particular either during commissioning of the installation 100 or in the factory during the integration of the motorized drive device 5 in the occultation device 3. The learning of these positions FdCH, FdCB, VH, VB is implemented either manually through one of the local 12 or central 13 control units or automatically by the electronic control unit 15.

Advantageously, the electronic control unit 15 is configured to control the positioning of the screen 2 between the first and second end-of-travel positions FdCH, FdCB and the first and second predetermined ventilation positions VH, VB as a function of at at least one datum relating to at least one parameter of the environment inside the building B and/or to at least one parameter of the environment outside the building B and/or to at least one presence detected at the inside the building B and/or to a time program, so as to regulate the flow of the air flow F between the outside and the inside of the building B through the ventilation device 24 provided at the level of the trunk 9 and, in particular, the times of obstruction and unobstruction of the air inlet 37 of the ventilation device 24 by a part of the screen 2.

Advantageously, the air inlet 37 and the air outlet 38 of the ventilation device 24 can be made in the form of ventilation grilles.

Advantageously, the ventilation device 24 is an air inlet member, in this case of building B, comprising a channel with a constant air passage section, that is to say without a controlled shutter element by a device for controlling the ventilation device 24, in particular a flap, arranged inside the channel and configured to adapt the section of the channel, according to conditions, which can be, for example, a temperature or a humidity at the inside and/or outside building B.

Thus, an air flow F flowing inside the ventilation device 24 is not adapted according to conditions by means of a control device configured to control the section of the channel provided inside the ventilation device 24.

In this way, the ventilation device 24 is simple and inexpensive.

Here, only the air inlet 37 of the ventilation device 24 can be obstructed, in particular partially, by means of a part of the screen 2 and, more particularly, of at least one of the blades 39 of screen 2 or the final end blade 8 of screen 2.

Advantageously, the ventilation device 24, in particular the box 9, can comprise acoustic insulation elements, not shown, so as to limit the passage of noise pollution, from the exterior of the building B towards the interior of the building B.

Preferably, the installation 100 comprises a controlled mechanical ventilation device 42, generally called by the acronym “VMC”. In addition, the controlled mechanical ventilation device 42 is configured to generate an air depression between the interior of the building B and the exterior of the building B, so as to generate the air flow F through the ventilation device 24.

As a variant or in addition to the controlled mechanical ventilation device 42, the ventilation device 24 can comprise at least one fan, not shown. The circulation of the air flow F between the air inlet 37 and the air outlet 38 through the box 9 is then implemented at least in part via the fan.

Advantageously, the regulation of the flow of air F flowing through the ventilation device 24 is implemented in a ventilation system of the building B of the single-flow type.

Advantageously, the installation 100 comprises the sensor 40 and/or at least one of the local 12 or central 13 control units configured to communicate with the electronic control unit 15 of the motorized drive device 5, so as to move the screen 2, between the first and second end-of-travel positions FdCH, FdCB and the first and second predetermined ventilation positions VH, VB, as a function of at least one signal emitted by the sensor 40 and/or by the local 12 or central 13 control unit.

Thus, the modification of the air flow of the air flow F passing through the ventilation device 24 is implemented by the displacement of the screen 2 by means of the motorized drive device 5, following the emission of at least one signal by the sensor 40 and/or by the local 12 or central 13 control unit, intended for the electronic control unit 15.

In this way, the installation 100 makes it possible to increase the air flow of the air flow F through the ventilation device 24 by moving the screen 2 and, more particularly, the final end slat 8 of the screen 2 as far as the first or the second predetermined ventilation position VH, VB, following a control command transmitted either manually by an occupant, in particular by means of one of the local 12 or central 13 control units, or automatically, in particular by means of one of the local 12 or central 13 control units or the sensor 40.

The sensor 40 can be, for example, a temperature sensor, a humidity sensor, an air flow sensor, a sensor for detecting particles present in the outside air or in the inside air, or a sensor presence detection.

In one embodiment, the ventilation device 24 comprises the sensor 40 measuring at least one parameter of the air passing through it and, more particularly, the trunk 9, where the electronic control unit 15 controls the movement of the screen 2, between the first and second end-of-travel positions FdCH, FdCB and the first and second predetermined ventilation positions VH, VB, as a function of this air parameter.

Thus, the electronic control unit 15 controls the positioning of the screen 2 relative to the trunk 9 as a function of at least one signal delivered by the sensor 40 measuring the air parameter and, possibly, as a function of data coming from one or more other sensors 40 measuring at least one parameter of the environment inside and/or outside the building B.

The sensor 40 measuring the parameter of the air passing through the ventilation device 24 can be arranged inside the trunk 9, or even close to the air inlet 37 or the air outlet 38 formed respectively in one of the walls 9a, 9b of the trunk 9.

Thus, the sensor 40 can make it possible to regulate the flow of air F flowing from the exterior of the building B towards the interior of the building B.

As a variant, the sensor 40 can be integrated into at least one of the local 12 or central 13 control units.

Advantageously, the electronic control unit 15 is configured to receive a first type of control order corresponding only to the movement of the screen 2 to open or close more or less the opening 1 and a second type of control order corresponding to the regulation of the air flow of the air flow F through the ventilation device 24 by the movement of the screen 2 between the first and second end-of-travel positions FdCH, FdCB and the first and second predetermined positions ventilation VH, VB.

Advantageously, a movement of the screen 2 to open or close the opening 1 more or less according to the first type of control command can be implemented at the nominal speed setpoint or at the reduced speed setpoint of the electromechanical actuator 11. In addition, a displacement of the screen 2 between the first and second end-of-travel positions FdCH, FdCB and the first and second predetermined ventilation positions VH, VB according to the second type of control order is put implemented at the reduced speed setpoint of the electromechanical actuator 11.

Here, an air flow regulation signal of the air flow F through the ventilation device 24 corresponds to a specific control command for moving the screen 2, in particular a predetermined stroke between the first and second limit positions FdCH, FdCB and the first and second predetermined ventilation positions VH, VB.

In an exemplary embodiment, the air flow regulation of the air flow F through the ventilation device 24 is implemented as a function of one or more thresholds of a parameter, in particular humidity, measured by the sensor 40, which may or may not be integrated into the local 12 or central 13 control unit.

In the case where the humidity is below a first threshold value S1, for example of the order of 40%, the screen 2 is positioned in one of the first and second end-of-travel positions FdCH, FdCB.

In the case where the humidity is greater than a second threshold value S2, for example of the order of 60%, the screen 2 is positioned in one of the first and second predetermined ventilation positions VH, VB.

In the case where the humidity is between the first threshold value S1 and the second threshold value S2, the screen 2 is switched between the first end-of-travel position FdCH, respectively the second end-of-travel position FdCB, and the first predetermined ventilation position VH, respectively the second predetermined ventilation position VB, according to modulation cycles, in particular of long duration, such as, for example, of the order of ten minutes. In this case, the duty cycle of operation of screen 2 can be proportional to the humidity value between the first and second threshold values S1, S2.

In another embodiment, installation 100 includes sensor 40 and central control unit 13. Sensor 40 is configured to communicate with central control unit 13. Further, central control unit 13 is configured to communicate with the electronic control unit 15, so as to move the screen 2 and to more or less obstruct the air inlet 37 of the ventilation device 37, depending on at least one signal emitted by the sensor 40.

In such a case, the central control unit 13 can be configured to take into consideration several constraints to control the regulation of the air flow of the air flow F through the ventilation device 24, which may come from the sensor 40 and , optionally, other sensors 40, of instructions entered by the user, such as, for example, time slots, priorities according to the origin of the control orders, which can be automatic or manual.

In the second embodiment, represented in FIGS. 8 and 9, elements similar to those of the first embodiment bear the same references and operate as explained above. In what follows, we mainly describe what distinguishes this second embodiment from the previous one. In what follows, when a reference sign is used without being reproduced in one of Figures 8 and 9, it corresponds to the object bearing the same reference in one of Figures 1 to 7.

We will now describe, with reference to Figures 8 and 9, the installation 100 according to the second embodiment of the invention.

Here, the screen 2 comprises a mobile blade 43, in other words orientable, in particular with respect to the blades 39 of the screen 2. The mobile blade 43 is moved, in other words is configured to be moved, between a first position and a second position. When the movable slat 43 of the screen 2 is in the first position, which can also be called folded, it extends in the extension of the screen 2, in particular of the slats 39 of the screen 2, in the assembled configuration of the installation 100. Furthermore, when the movable blade 43 of the screen 2 is in the second position, which can also be called the projected position, this extends in a direction inclined with respect to the screen 2, in particular with respect to the blades 39 of the screen 2, in the assembled configuration of the installation 100.

Advantageously, the movable blade 43 of the screen 2 is one of the blades 39 of the screen 2.

Advantageously, the movable blade 43 of the screen 2 is moved, in other words is configured to be moved, between its first and its second position, or vice versa, by means of a mechanism, not shown.

Such a mechanism can be, for example, a lever secured to the movable blade 43 cooperating, in other words being configured to cooperate, with a cam arranged at the level of the air inlet 37 of the ventilation device 24, in the assembled configuration. of the installation 100, when the screen 2 moves between the second end-of-travel position FdCB and the second predetermined ventilation position VB, and vice versa.

Advantageously, the movable blade 43 of the screen 2 is moved, in other words is configured to be moved, between its first and its second position, or vice versa, by means of an elastic return element, not shown, which can be, by example, a spring.

Here, when the screen 2 is in the second limit position FdCB, the air inlet 37 of the ventilation device 24 is configured to be obstructed, in particular partially, by the movable blade 43 of the screen 2 .

Advantageously, when the screen 2 is in the second end-of-travel position FdCB, the minimum flow of the air flow F through the ventilation device 24 is guaranteed by an air passage provided between the movable blade 43 of the screen 2 and a wall of the air inlet 37 of the ventilation device 24 and, more particularly, a face of the side slides 6, as illustrated in figure 8.

Thus, the air flow F can flow directly through the air inlet 37 of the ventilation device 24 and, possibly, through the air passage(s) provided between one or both side slides 6 and the screen 2 as well as between the screen 2 and the window 25 at the level of the space E, then inside the trunk 9 after having crossed the air inlet 37 of the ventilation device 24 and finally inside the building B via the air outlet 38 of the ventilation device 24, while being reduced by the section constriction at the level of the air inlet 37 of the ventilation device 24 generated by positioning the movable blade 43 of the screen 2 in its second position.

In this way, the positioning of the movable blade 43 of the screen 2 in its second position makes it possible to press the movable blade 43 of the screen 2 against a face of the side slides 6, in particular oriented towards the outside of the building B, so as to obstruct a part of the air inlet 37 of the ventilation device 24 by means of a part of the screen 2, while maintaining a zone of circulation of the air flow F at the inside this air inlet 37 and the slot 33 of the trunk 9.

Here, when the screen 2 is in the second predetermined ventilation position VB, the air inlet 37 of the ventilation device 24 is partially obstructed by the screen 2, in particular by the movable blade 43 of the screen 2 , according to a first minimum volume determined by a height of the air inlet 37 and by a width and a thickness of the screen 2, so that the airflow of the airflow F has a nominal value, as shown in figure 9.

Thus, when the screen 2 is in the second predetermined ventilation position VB, the obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of the slot 33 of the box 9 is minimal.

Here, the first volume of obstruction of the air inlet 37 by the screen 2 is minimal, since the screen 2 is suspended by the winding tube 4 in a vertical direction generated by the weight of the blades 39 of the screen 2 and since the movable blade 43 of the screen 2 is in its first position, that is to say extending in the extension of the screen 2, in particular of the blades 39 of the screen 2 , in the assembled configuration of installation 100.

When the screen 2 is in the second limit position FdCB, the air inlet 37 of the ventilation device 24 is partially obstructed by the screen 2, in particular by the movable blade 43 of the screen 2, according to a second volume greater than the first volume, so that the air flow of the air flow F has a reduced value compared to the nominal value of the latter, as illustrated in Figure 8.

Thus, when the screen 2 is in the second limit position FdCB, the obstruction of the air inlet 37 of the ventilation device 24 and, consequently, of the slot 33 of the box 9 is greater than when the screen 2 is in the second predetermined ventilation position VB, since the movable blade 43 of the screen 2 is in its second position, that is to say extending in a direction inclined with respect to the screen 2, in particular with respect to blades 39 of screen 2, in the assembled configuration of installation 100.

An embodiment of a method for controlling the installation 100 in operation in accordance with the first and second embodiments of the invention represented in FIGS. 1 to 9 will now be described.

Advantageously, the control method comprises the step of sending a control command from one of the local 12 or central 13 control units or from one of the sensors 40 to the electronic control unit 15 and a step of reception by the electronic control unit 15 of the command order transmitted, during the transmission step.

The method comprises a step of controlling the motorized drive device 5, in response to the receiving step, to move the screen 2 until it reaches and, more particularly, until the final end slat 8 of screen 2 reaches the first predetermined ventilation position VH, respectively the second predetermined ventilation position VB, from the first end-of-travel position FdCH, respectively the second end-of-travel position FdCB, or vice versa, from so as to regulate the air flow of the air flow F passing through the ventilation device 14 provided in the trunk 9 of the screening device 3.

Thanks to the present invention, whatever the embodiment, such an installation is simple to implement and makes it possible to improve the control of the regulation of the flow of air flowing through the ventilation device, from from the exterior of the building to the interior of the building, and, more particularly, to improve the control of a level of humidity inside the building, while guaranteeing satisfactory thermal insulation performance of the installation and minimizing the costs of obtaining the installation.

Many modifications can be made to the embodiments described above without departing from the scope of the invention.

As a variant, the electric motor 16 of the electromechanical actuator 11 can be of the asynchronous or direct current type.

In addition, the embodiments and variants envisaged can be combined to generate new embodiments of the invention, without departing from the scope of the invention.

Claims (9)

Installation (100) for a building (B) comprising at least:

• a concealment device (3),
• a window (25), and
• a ventilation device (24),

the concealment device (3) comprising at least:
- a chest (9),
- a screen (2), the screen (2) being arranged at least partly inside the box (9), in an assembled configuration of the installation (100), and
- a motorized drive device (5), the screen (2) being configured to be moved between a first end-of-travel position (FdCH) and a second end-of-travel position (FdCB) by means of the motor drive (5),
the motorized drive device (5) comprising at least:
- an electromechanical actuator (11), and
- an electronic control unit (15),
the ventilation device (24) comprising at least one air inlet (37) and at least one air outlet (38),
the motorized drive device (5) being configured to move the screen (2) until it reaches a first or a second predetermined ventilation position (VH, VB), the first predetermined ventilation position (VH) being distant from the first end-of-travel position (FdCH) and disposed between the first and second end-of-travel positions (FdCH, FdCB), the second predetermined ventilation position (VB) being distant from the second end-of-travel position (FdCB) and disposed between the first and second end-of-travel positions (FdCH, FdCB),
characterized in that the air inlet (37) and the air outlet (38) of the ventilation device (24) are formed respectively in separate walls (9a, 9b) of the box (9),
in that, when the screen (2) is in the first end-of-travel position (FdCH) or in the second end-of-travel position (FdCB), the air inlet (37) of the ventilation device ( 24) is configured to be obstructed by a part of the screen (2), so as to reduce circulation of the air flow (F) passing through the ventilation device (24), from the air inlet (37) to the air outlet (38),
in that the screen (2) comprises a movable blade (43), the movable blade (43) being configured to be moved between a first position and a second position,
in that, when the movable blade (43) of the screen (2) is in the first position, the latter extends in the extension of the screen (2), in the assembled configuration of the installation ( 100),
in that, when the movable blade (43) of the screen (2) is in the second position, the latter extends in a direction inclined with respect to the screen (2), in the assembled configuration of the install (100),
and in that, when the screen (2) is in the second limit position (FdCB), a minimum flow of the air flow (F) through the ventilation device (24) is guaranteed by a passage air provided between the movable blade (43) of the screen (2) and a wall of the air inlet (37) of the ventilation device (24). Installation (100) for a building (B) according to claim 1, characterized in that the screen (2) comprises at least one final end slat (8), and in that, when the screen (2) is in the first end-of-travel position (FdCH), the air inlet (37) of the ventilation device (24) is configured to be partially obstructed by the final end slat (8) of the screen ( 2). Installation (100) for a building (B) according to Claim 1 or according to Claim 2, characterized in that the screen (2) comprises a plurality of blades (8, 39, 41) and in that, when the screen (2) is in the second end-of-travel position (FdCB), the air inlet (37) of the ventilation device (24) is configured to be partially obstructed by one of the blades (39, 41) screen (2). Installation (100) for a building (B) according to any one of Claims 1 to 3, characterized in that the screen (2) comprises at least one final end blade (8), and in that, when the screen (2) is in the first limit position (FdCH), a minimum flow of the air flow (F) through the ventilation device (24) is guaranteed by a spacing (LHmin) between the blade final end (8) of the screen (2) and one of the walls (9a) of the box (9). Installation (100) for a building (B) according to any one of Claims 1 to 4, characterized in that the air inlet (37) of the ventilation device (24) corresponds to at least part of a slot (33) of the trunk (9) and in that the slot (33) of the trunk (9) is also configured to allow passage of the screen (2) when the latter is moved, by means of the motor drive device (5). Installation (100) for a building (B) according to any one of Claims 1 to 5, characterized in that the installation (100) comprises at least one control unit (12, 13) configured to communicate with the control unit control electronics (15) of the motorized drive device (5), so as to move the screen (2), between the first and second end-of-travel positions (FdCH, FdCB) and the first and second predetermined positions of ventilation (VH, VB), depending on at least one signal transmitted by the control unit (12, 13). Installation (100) for a building (B) according to any one of Claims 1 to 6, characterized in that the installation (100) comprises at least one sensor (40) configured to communicate with the electronic control unit ( 15) of the motorized drive device (5), so as to move the screen (2), between the first and second end-of-travel positions (FdCH, FdCB) and the first and second predetermined ventilation positions (VH, VB), as a function of at least one signal emitted by the sensor (40). Installation (100) for a building (B) according to any one of Claims 1 to 7, characterized in that the installation (100) comprises a controlled mechanical ventilation device (42) and in that the mechanical ventilation device (42) is configured to generate an air depression between the inside of the building (B) and the outside of the building (B), so as to generate the air flow (F) through the ventilation device (24). Installation (100) for a building (B) according to any one of Claims 1 to 8, characterized in that, when the screen (2) moves between the first end-of-travel position (FdCH), respectively the second end-of-travel position (FdCB), and the first predetermined ventilation position (VH), respectively the second predetermined ventilation position (VB), and vice versa, by means of the motorized drive device (5), the the electronic control unit (15) is configured to control the electromechanical actuator (11) at a reduced speed setpoint relative to a nominal speed setpoint.