EP2453092A1 - Device for operating a shutter of a building and method for operating such a device - Google Patents

Abstract

The device (110) has an electric actuator (11) comprising a power supply unit (37) i.e. photovoltaic panel, and a reducer placed between an electric motor and one of a pair of connection units (12, 22). An output stage of the reducer is subjected to a maximum torque transmitted by the connection unit when a shutter (51) is subjected to wind whose speed reaches a maximum wind speed i.e. 30 m/s. Maximum driving torque of the motor is less than half or one-fourth of maximum torque and divided by reduction ratio. The actuator has a manual clutch unit located between the motor and the stage. An independent claim is also included for a method for controlling a shutter operating device.

Description

The invention relates to a method for controlling or operating an installation comprising a motorized shutter or motorized shutters. The invention also relates to a method of controlling or operating a shutter operating device. The invention further relates to a shutter operating device. The invention also relates to a data carrier for implementing the method mentioned above. The invention finally relates to a computer program for implementing the method mentioned above.

Many countries in Europe have a traditional habitat in which houses are equipped with swing shutters, that is to say, pivoting about a vertical axis. These flaps are generally arranged in pairs, but it happens that a single flap is used for narrow bays.

Although many documents of the state of the art expose motorization solutions for the shutters, it is clear that the almost unanimous shutters is not motorized and retains a manual type control, including in the most recent dwellings.

Without it being necessary to establish a critique of the prior art, this observation shows that the motorization solutions currently proposed are not suitable for reasons that are at the same time technical, economic and aesthetic.

The beating shutter has indeed specific constraints of use in the presence of all the situations related to the wind: weak established wind, strong established wind, wind in bursts, wind turning etc. These situations vary themselves on the same site and from one site to another, we understand that product offers lead to an over-sizing of these, so as to be able to deal with all situations . This results in bulky products, unsightly, expensive and difficult installation.

For example, the patent application EP 0 484 258 describes a geared motor whose arrangement makes it possible to ensure a suitable and automatic opening of the leaf, even when the leaf is subjected to violent gusts of wind.

The patent application EP 0 366 575 describes a device for controlling leaves such as shutters. The device comprises an electromagnet adapted to lock the pivoting movement of an arm rotated by a geared motor, the electromagnet engaging a lug in an open position of the arm notch or engaging the lug in a closed position notch of the arms. A button, called disengage, causes a mechanical action spreading the lug of the notch and unlocking the swivel arm. The rotation of the leaf, if it is caused by a malefactor, causes rotation of the pivoting arm, of the assembly of the reducer and finally causes the rotation of the engine which then serves as an intrusion attempt detection means, coupled to a central alarm. This document does not mention the effects of the wind.

The patent FR2711174 describes a compact motorized swing shutter drive system, including a manual disengagement device, useful in the event of a motorized drive system failure, to avoid forcing and damaging the motor by pushing the shutter. This document also states that the system enables the component to be trained in case of strong wind, but could be damaged if the flap is left ajar under the same wind conditions.

There is therefore a need for an alternative maneuvering device that does not have the disadvantages of operating devices known from the prior art.

The object of the invention is to provide a flap maneuvering device overcoming the disadvantages mentioned and improving operating devices known from the prior art. In particular, the invention provides a flap maneuver device of small size, affordable, aesthetic, simple and easy to install. The invention further provides a shutter operating device which is protected against external elements, especially against the effects of wind, static and dynamic.

An operating device according to the invention is defined by claim 1.

Different embodiments of an operating device are defined by claims 2 to 5.

A control method according to the invention is defined by claim 6.

Different embodiments of a control method are defined by claims 7 to 14.

An operating device according to the invention is defined by claim 15.

The invention also relates to a data storage medium readable by a computer on which is recorded a computer program comprising computer program code means for implementing the phases and / or steps of the method defined above.

The invention further relates to a computer program comprising computer program code means adapted to perform the steps of the method defined above, when the program runs on a computer.

• La figure 1 représente schématiquement un mode de réalisation d'une installation domotique comprenant deux volets battants, un dispositif de manoeuvre selon l'invention, agissant sur chaque volet battant, et un moyen de commande à distance du dispositif de manoeuvre.
• La figure 2 représente un mode d'exécution d'un procédé de commande selon l'invention.
• La figure 3 représente un mode de réalisation et sa variante d'une étape de détection de vent du procédé de commande.
• La figure 4 représente un mode de réalisation d'une étape d'exécution d'une procédure de sauvegarde du procédé de commande.
• La figure 5A représente un actionneur électrique selon l'invention et son moyen de verrouillage disposé dans le dispositif de manoeuvre selon l'invention.
• La figure 5B reproduit partiellement la figure 5A dans le cas où un moyen d'amortissement est utilisé.
• La figure 6 représente un moyen de débrayage de l'actionneur électrique.
• La figure 7 représente des zones de butée de l'installation domotique.
• La figure 8 représente un procédé de dimensionnement d'un moteur électrique de l'actionneur électrique.
• La figure 9 représente des valeurs particulières de couple et des plages de couple relatives à l'actionneur électrique.

The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the appended drawings in which:

• The figure 1 schematically represents an embodiment of a home automation system comprising two flaps, an operating device according to the invention, acting on each flap, and remote control means of the operating device.
• The figure 2 represents an embodiment of a control method according to the invention.
• The figure 3 represents an embodiment and its variant of a wind detection step of the control method.
• The figure 4 represents an embodiment of a step of performing a backup procedure of the control method.
• The Figure 5A represents an electric actuator according to the invention and its locking means disposed in the operating device according to the invention.
• The Figure 5B partially reproduces the Figure 5A in the case where a damping means is used.
• The figure 6 represents a disengaging means of the electric actuator.
• The figure 7 represents stop zones of the home automation system.
• The figure 8 represents a method of dimensioning an electric motor of the electric actuator.
• The figure 9 represents particular torque values and torque ranges relating to the electric actuator.

The figure 1 schematically represents an embodiment of a home automation system 100 according to the invention comprising a first and a second flap 51, 52, an embodiment of an operating device 110 according to the invention, acting on each flap, and means 41 remote control of the operating device.

The operating device 110 comprises a first actuator 11 acting on the first flap 51 by means of a first connection means 12 or mechanical movement or coupling, a second actuator 21 acting on a second flap 52 via a second connecting means 22 or motion transmission or mechanical coupling. The first and second connecting means comprise, for example, a pivoting arm connected in a fixed manner to an output shaft of the actuator and connected by guiding to a slideway fixed to the flap. The first flap pivots (with not shown hinges) around a first vertical axis 53 and the second flap pivots about a second vertical axis 54. As in the patent application EP 0 366 575 , the rotation of the output shaft of the actuator drives that of the flap flap.

The first actuator comprises a first disengaging means provided with a first disengagement control 13 and the second actuator comprises a second disengaging means provided with a second disengagement control 23. The two actuators are connected to a control unit 30, respectively by a first supply connection 31 and a second supply connection 32. Preferably, the control unit and the first actuator are arranged in the same housing 10, and the first actuator is designated "master actuator", while the second actuator is designated "slave actuator". The operation of each actuator results in the evolution of at least one internal parameter of the actuator. A first internal parameter of the actuator is representative of its speed, a second internal parameter of the actuator is representative of its torque, reflecting the force exerted on the flap by the actuator and / or exerted by the flap on the actuator. Preferably, the internal parameters are measured at a low power electric motor contained in the actuator and normally causing the movement thereof when the engine is powered. Thus, to transmit the value of the first internal parameter of each actuator, a first feedback signal 33 is transmitted by the first actuator to the control unit and a second feedback signal 34 is transmitted by the second actuator. Similarly, to transmit the value of the second internal parameter of each actuator, a third feedback signal is transmitted by the first actuator to the control unit and a fourth feedback signal 36 is transmitted by the second actuator.

The return signal may be derived from sensors located in the actuators, for example torque sensors and / or speed sensors.

Alternatively, a feedback signal or the two feedback signals of each actuator is taken or are taken directly on the power supply link of the actuator, as shown in dashed line under the references 34 'and 36'. For example, a measurement of the current supplied to the actuator and / or a measurement of the voltage across the actuator gives a torque and / or speed information of the actuator. In this case, the feedback signals are processed directly within the control unit.

The return signals are representative of the effects of wind on the flap.

Thus, the control unit comprises a wind effect detection program 30a by analysis of the return signals. The means emitting the return signals and the wind effect detection program constitute a means of detecting the wind of the operating device.

The control unit is powered by a power supply means 37 comprising for example a photovoltaic panel and an accumulation means, in particular a supercapacitor or a battery. Alternatively, the power supply means comprises a switching power supply connected to the electrical network of the dwelling.

The control unit is also connected to an RFU, radio-frequency and bidirectional command receiver. The command receiver communicates with a radio frequency network 40 of the home automation type. Remote control means 41 also communicates with the radio frequency network bi-directionally and the command receiver 38 is therefore able to receive commands from the remote control means when a user acts on a control interface. 42 of the remote control means. Conversely, the remote control means may emit a sensitive signal to the user using a sensitive means 43, if it receives a particular message from the command receiver. For this purpose, the control unit comprises a signaling program 30b. The signaling program, the sensory means, the command transmitter and the command receiver, then constitute a signaling means of the operating device, activatable by the wind detection means.

The operating device also comprises flap shutter locking means described in connection with the Figures 5A and 5B . The locking means may also serve as a braking or damping means in the presence of a very large wind. Advantageously, the locking means may comprise sliding blocking means MB when a torque greater than a predetermined value CGLISS is applied at the output of this sliding blocking means.

The home automation system may comprise only the first flap 51, the remote control means 41 and a private actuator 110 of the second actuator.

The home automation system may conversely comprise a greater number of flaps and / or pairs of flaps, each flap or each pair of flaps being connected to a maneuvering device and the remote control means can act on several control devices.

The wind can act on the flap or flaps, as represented by a full arrow 60. An obstacle 70 can oppose the movement of one flap or two flaps.

The operating device comprises hardware and / or software means for controlling its operation in accordance with the method of the invention, in particular to govern the steps of this method and their sequences. Material means include the control unit. The software means may be contained in the control unit. The software means may in particular comprise a computer program code means adapted to performing the steps of the method according to the invention, when the program runs on a computer.

The figure 2 represents an embodiment of a control method or a method of operation of an operating device according to the invention.

In a first step S1, the control unit receives, via the command receiver, a movement order of the swing flap. This movement order is stored in a memory of the control unit.

In a second step S2, the movement order is executed. The control unit applies a supply voltage to the first power supply link and / or the second power supply link. The polarity of the supply voltage depends on the state of the actuator before receiving the movement command, this state being stored in a memory of the control unit.

Preferably, the master actuator is energized before the slave actuator during an opening movement of the flaps, while the slave actuator is energized before the master actuator during a closing movement of the flaps.

In a third step S3, the action of the wind on a flap is detected. The detection is done as indicated above by analyzing at least one internal parameter of the actuator. This detection is able to make the difference between a wind detection and a detection of another phenomenon modifying the movement of the swing flap, such as the contact of the swing flap with an obstacle or with an end stop, as explained for example in relation to the figure 3 .

In a fourth step S4, the control unit performs a backup procedure, so as to put the swing flap in a safe position vis-à-vis effects of wind. Preferably a first safety position is the open position of the swing flap and another safety position is the closed position of the swing flap. The choice to go to a safety position rather than the other depends on the analysis of the at least one internal parameter of the actuator, as explained for example in relation to the figure 4 .

A safety position can also be the current position of the actuator at the moment of detection, by coupling this safety position with a braking blocking of the actuator, as explained for example in connection with the Figure 5B .

In a fifth step S5, the signaling program of the control unit causes the transmission of a message to the remote control means to warn the user with the aid of a sensory signal emitted by the means of control. remote control: for example the flashing of a light-emitting diode or an audible signal. Thus, the user is warned of the problem even if it is remote from the installation.

Alternatively, a visual or audible signal is emitted by a signaling means integrally included in the actuator. Alternatively, a visual signal is provided by a particular movement of the flap around its safety position, or by a shutter shutter in a special position in the vicinity of the safety position, under control of the signaling program.

Alternatively, the fifth step takes place in parallel with the fourth step or prior to the fourth step.

In a sixth step S6, the user goes to the vicinity of the operating device and proceeds to manual disengagement of the actuator. This is not an unlocking but a real release, for example performed at the output shaft of the actuator, such as a movement of the flap does not cause any rotation of the electric motor contained in the actuator.

In a seventh step S7, the disengaged state of the actuator is detected electrically, for example during an action on an electrical contact caused by the manual disengagement.

In an eighth step S8, the user manually causes the movement of the flap flap, from the safety position to the desired position, taking advantage of a lull in the wind or devoting to this displacement the muscular effort required. This movement brings the flap flap either in a fully closed end position or in a fully open end position.

In a ninth step S9, the user re-engages the actuator, and this engaged state is detected in a tenth step S10.

In an eleventh step S11, the control unit cancels the movement order recorded in the first step. The control unit memorizes that the actuator is in an end position, but can ignore which end position it is if the control device does not include a specific position sensor, for example if the position is only deduced from internal parameters of the actuator and that these parameters concern the motor, which does not turn during the eighth step.

• soit de la nature de l'ordre reçu : par exemple, la réception d'un ordre d'ouverture signifie que la fin de course actuelle est celle d'une position fermée tandis que la réception d'un ordre de fermeture signifie que la fin de course actuelle est celle d'une position ouverte,
• soit d'une entrave immédiate au mouvement, suivant un démarrage du moteur dans un sens d'ouverture ou respectivement dans un sens de fermeture. Dans ce cas, il y a inversion immédiate du sens de mouvement (par exemple en inversant la polarité d'alimentation du moteur) et repérage de la fin de course actuelle comme fin de course de position ouverte ou respectivement comme fin de course de position fermée.

In a twelfth step S12, initiated by the receipt of a new movement command, the nature of the limit switch is deduced:

• either of the nature of the received order: for example, the receipt of an opening order means that the current limit switch is that of a closed position while the receipt of a closing order means that the end current race is that of an open position,
• either an immediate obstacle to movement, following a motor start in an opening direction or respectively in a closing direction. In this case, there is an immediate reversal of the direction of movement (for example by inverting the polarity of the motor supply) and identification of the current limit switch as open position limit switch or respectively as closed position limit switch. .

In both cases, the control unit is automatically reset to cause the actual movement desired by the user for future uses of the remote control means. Thus, the control unit is able to correct the problems caused by the disengagement of the actuator, namely the lack of knowledge of the position of the flap flap after disengagement.

The seventh step can be deleted if the tenth step is able to detect a change of state (transition to the engaged state) of the actuator.

The figure 3 represents an embodiment and its variant of the wind detection step S3 of the control method. In this embodiment, a first substep S31 verifies, to allow passage to the second substep, that there is variation of at least one internal parameter of the actuator while the position of the flap is located outside a stop zone, that is to say out of the vicinity of the end stops. If this is the case, we proceed to the second substep S32 in which the discrimination is made between an internal parameter variation reflecting the presence of wind and a variation of internal parameter reflecting the presence of an obstacle. This discrimination can be more or less complex to achieve. A simple embodiment consists in deducing that there is an obstacle, and provoking for example the connection to an Obstacle processing module obstacle, if the variation of internal parameter translates a sudden cancellation of the speed, for example a canceling the speed in less than one second, or at least a considerable and sudden decrease in speed, for example a speed passing below 10% of its nominal value in less than one second.

In all other cases, it is considered that the parameter variation results from the presence of wind, and one goes to the fourth step of the control method.

Alternatively, the first sub-step does not take into account the position with respect to the abutment zones, and it is the Obstacle software module that performs a different treatment depending on whether the estimated position of the flap is in an abutment zone, for example in stopping simply powering the motor and locking it by short circuit as described below, or is outside a stop zone, for example by causing a slight backward movement of the actuator before ceasing power the engine.

Alternatively, a wind detection is deduced from the presence of a fluctuating component, especially an alternating component, in the variation of the internal parameter, caused for example by a gusty wind.

Preferably, the wind detection step uses historical data, for example recorded in a learning procedure, to locate any hard points during a movement without presence of wind or presence of obstacles and not to later to confuse a hard point with a gust of wind.

A variant of the second sub-step is represented under the reference S32 '. This variant applies to the presence of two coupled actuators acting on a pair of flaps. It consists of comparing and correlating variations of an internal parameter of the first actuator with internal variations of a second actuator. Indeed the wind is applied simultaneously to the two leaves, with effects of variable amplitude due to the angular position of each leaf with respect to the wind, but nevertheless synchronous or almost synchronous. Conversely, an obstacle generally acts on a single leaf, except possibly in the case where the obstacle is arranged against a pair of flaps in the closed position, which places it in a stop zone.

When executing a group control command, addressed to a group of actuators arranged on different windows of the same facade, the correlation makes it possible moreover to detect in a certain way the presence of wind. This correlation is enabled by the bidirectional link of each control device with the home network.

For example, it suffices for two control devices to issue a wind presumption message "Presumption Wind" to the remote control means having sent a group control command, so that the remote control means deduces the certain presence from it. wind and address to all control devices a wind presence message "Presence Wind".

This message can also be broadcast on the home automation network to enable the security of other wind-sensitive equipment, for example a patio awning.

The wind detection can also be detected by analyzing the first internal parameter representative of the speed of the electric motor and analyzing the second internal parameter of the electric actuator representative of its torque. It can be concluded that there is wind when the second internal parameter exceeds a second threshold while the first internal parameter exceeds a first threshold.

The figure 4 represents an embodiment of a step of executing the backup procedure of the control method during the fourth step S4. During a backup procedure, the actuator places the swing flap in a safe position with respect to the effects of the wind. A safety position is preferably a fully open position of the swing flap or a fully closed position of the swing flap.

According to the evolution of an internal parameter of the actuator representative of the force experienced by the flap, it is one or the other of the safety positions that is chosen. It is therefore appropriate, depending on the case, either to continue the current movement or to reverse it.

In a first substep S41, a growth of the resistive force is detected (for example an increase in the torque supplied by the electric motor). In this case, the control unit causes the reversal of motion. The new movement, in the opposite direction to the one corresponding to the execution of the command command received during the first step, then continues until reaching an end stop (in total closure or in full opening), constituting a security position.

In a second substep S42, a large resistive force is detected, but this has a temporal decay immediately after detection. In this case, the current movement is continued. This case occurs for example when a strong wind appears while the wind catching surface of the flap (projection of the flap surface flap on a plane perpendicular to the wind direction) decreases due to the current rotation of the flap beating.

In a third substep S43, it is detected that the force is motor, that is to say that it is the actuator that is driven by the shutter, and then continues the movement in progress, either in continuing to feed the motor as before, either by going into a damping mode described in relation to the Figure 5B .

The Figure 5A represents an embodiment of the second electric actuator 21 and locking means disposed in the control device. The Figure 5A same applies to the first actuator in replacing all the references of the second decade (21-29) by references of the first ten (11-19) retaining the same number of units.

The actuator comprises an electric motor 24 of low power, preferably permanent magnet type and collector, whose mechanical output 25 is connected to a disengaging means 26 followed by a gear 27 whose output shaft is a shaft of output of the actuator connected to the connecting means 22. The gearbox has a reduction ratio R, for example equal to 200, between an input of the gearbox connected to the electric motor and the output of the gearbox connected to the connecting means. Thus, the speed of the output shaft of the gearbox is that of the electric motor divided by R.

Alternatively, all or part of the gearbox is disposed upstream of the disengaging means, as symbolized by a dotted line arrow A1, or is combined with the clutch, as symbolized by a dotted line arrow A2. The actuator is engaged when the clutch control is at rest and disengaged when the clutch control is activated. The clutch control 23 is also connected to a normally closed electrical contact 28 when the clutch control is at rest, in series with a power supply wire of the electric motor. Thus, the control unit 30 finds that the actuator is engaged if the circuit supplied by the supply link 32 is closed, and finds that the actuator is disengaged if this circuit is open. A parallel resistor 29 is arranged in parallel with the motor to allow measurement of the open or closed state of this circuit, even with a low supply voltage, lower than the normal supply voltage of the motor. The operating device therefore comprises a means for detecting the activation of the disengaging means.

A first actuator lock means includes a relay contact 39 shorting the actuator power connection. This relay is included in the control unit 30 and forms a direct short-circuit means.

The Figure 5B partially reproduces the Figure 5A in the case where an additional damping means is used, in order to be able to brake excessively a movement imposed on the electric motor by the wind acting on the swing flap. In this alternative embodiment, the first blocking means again includes a first relay contact 39a directly short-circuiting the supply link, while the damping means comprises a second relay contact 39b in series with a series resistor. 39c, the assembly being connected to the power supply and forming a resistive short-circuit means.

The operating device therefore comprises means for short-circuiting directly a supply link of the actuator and / or resistive short-circuiting means of a supply link of the actuator.

Alternatively or in a complementary manner, the operating device comprises a second blocking means MB sliding beyond a pair CGLISS, such as for example a magnetic brake as for example described in the application WO05 / 121490 . This brake is preferably arranged at the motor output, before the reversible type gearbox and before the disengaging device. It can also be integrated into the engine. It acts as braking means at low rotational speed of the motor shaft, when a movement of the flap is stopped in a given position. It intervenes in particular as a static locking means to maintain the shutter, especially in an intermediate position, against for example possible jolts caused by gusts of wind or by manual maneuvers on the shutter or the means of connection of the operating device to the flap.

A magnetic brake is mainly composed of a set of cooperating magnets, mounted vis-a-vis, one of which is static and one is rotatably mounted, for example on the output shaft of the motor.

During a movement, the brake has little impact on the movement. Indeed, during the movement, braking phases and acceleration phases of the same intensity follow one another, these phases being caused by the actions of the magnets on each other. Conversely, in static, the two magnets are positioned angularly opposite each other in a position of maximum attraction. Braking is then maximal.

The sliding torque CGLISS of the sliding blocking means can be dimensioned so as to protect the gear against forces applied at the output. The gearbox is capable, because of its reversibility, to transmit forces to the motor (for example forces of the order of 100Nm). The slip torque is chosen to be strictly less than the brake resisting torque. For example, the slip torque is chosen strictly less than 100 Nm, and preferably, with a margin of safety of the order of 20%, less than 80 Nm. When the wind exceeds a maximum speed VMAX 'causing statically a force greater than the sliding torque, the role of the magnetic brake changes: it no longer holds the flap in position but protects the gearbox and the engine of an overtorque that would be applied at the outlet of the gearbox causing a controlled slip. The brake then acts as a mechanical fuse. The sliding torque of the magnetic brake CGLISS can be dimensioned for example by adjusting the radial distance between the magnets vis-à-vis.

The magnetic brake according to the invention maintains the mechanical connection between the motor and the flap, but allows the gear unit to turn (the engine then running as a generator and no longer a motor) when a static stress is too great compared to the dimensioning of the gearbox. The magnetic brake is therefore not a torque limiter. Indeed, it does not separate the engine shutter.

Therefore, the flaps can be moved, but against the action of a braking force, to a safety position, this without risk of damaging the drive device, the shutter or the structure.

In the absence of this second braking blocking means, the flaps could be too easily maneuvered by hand or by gales. The magnetic brake therefore offers a perfectly adapted solution, making it possible to apply a higher braking torque to the only static resistance of the gear unit and to protect the gearbox.

The magnetic brake does not require any control from the control unit of the operating device. It is advantageously used with a reversible reducer.

The figure 6 schematically shows in section an embodiment of the disengaging means 26 of the electric actuator when it is combined with the gearbox 27. The disengaging means is shown in the engaged position. The disengaging means comprises a clutch control 23a movable pinion 23c, movable in translation and rotation about a guide shaft 23b. The movable pinion 23c is narrow-toothed. It is interposed between the output stage 27a of the gearbox and an intermediate stage 27d of the gearbox. In particular, the movable pinion cooperates with an output gear 27b of the gearbox, with short teeth, mounted tightly on an output shaft 27c of the gearbox, constituting the output shaft of the actuator and mounted tightly on the connecting means 22. The movable pinion also cooperates with an intermediate gear 27f with long teeth, mounted tightly on an intermediate shaft 27g of the gearbox.

The movable pinion can contribute to the reduction ratio. In this case, the presence of the movable pinion is taken into account in the reduction ratio R.

Alternatively, the movable pinion is interposed between any first stage of the gearbox and any second stage of the gearbox.

When the user presses the clutch control, as represented by a full arrow A3, there is movement in translation of the movable pinion along the guide shaft, which eliminates the cooperation between the movable pinion and the pinion. output and there is no mechanical connection in rotation between the output shaft of the actuator and the electric motor.

The clutch control may comprise a lug maintaining the disengaged position when engaged. When this pin is released, a return spring, not shown, tends to return the movable pinion in the position where it cooperates with the output pinion.

One can of course add a contact piece with the disengagement control, so as to suppress the rotational movement of the disengagement control, decoupling the translation and rotation movements. It is also possible to use other simple disengagement devices.

The figure 6 the same applies to the first actuator. All the references of the second decade (21-29) are then replaced by references of the first ten (11-19) retaining the same number of units.

The manual disengaging means is perfectly compatible with the use of a sliding locking means, in particular a magnetic brake. The manual disengaging means acting on the kinematic chain comprising the motor and the gear unit by separating the elements of this kinematic chain beyond the sliding locking means, a force exerted on the flap will result in a movement of the latter without action on the locking means or on the motor.

The figure 7 represents stop zones of the home automation system. A first abutment zone Z1 corresponds to an angular sector bounded by the closing limit stop, the movement of the flap flap being stopped by an end stop 55.

A second abutment zone Z2 corresponds to an angular sector bounded by the closing end-stop, constituted for example by the wall 56 on which the flap is placed.

Whether the actuator is equipped or not equipped with an angular position measuring means, it is possible to define the stop zones, at least with temporal criteria, in order to be able to apply the sub-steps of the third step of the control method.

The figure 8 represents an embodiment of a sizing process of the electric motor of the electric actuator and the supply means. In a first sizing step S01, the minimum value CDMIN of the startup torque necessary to enable the actuator to be started in the installation is determined. This value is defined in particular according to the constitution of the actuator, for example the reduction ratio R of the reducer, and depending on the parameters of the shutter: its inertia, dry friction, all under the most unfavorable climatic conditions.

It is recalled that the starting torque of an electric motor is equal to the abutting torque, said locked rotor torque, and that, for the type of electric motor chosen, it is the maximum driving torque that the motor can provide. electric when it is powered by the power supply.

In a second dimensioning step S02, the maximum torque value CMAX is determined at the output shaft of the gearbox supported by the output stage of the gearbox in the event of strong wind on the swing flap. In particular, the output stage of the gearbox is dimensioned so that it can support the maximum value CMAX. Furthermore, the sliding blocking means as described above is dimensioned such that the sliding torque CGLISS is strictly less than CMAX, preferably, CGLISS is taken lower than 0.8xCMAX.

CMAX is deduced from the force F1 exerted by the wind on the flap shutter when it has a maximum section, the total surface S of the flap shutter, perpendicular to the direction of the wind. $$\mathrm{F}\mathrm{1}\mathrm{=}\mathrm{0.5}\mathrm{\rho \; S}{\mathrm{<figure-callout\; id="2"\; label="v"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">v</figure-callout>}}^{\mathrm{2}}$$

In this expression, v is the wind speed (in m / s) and p is the density of the air, taken as equal to 1.2 kg / m ³ for a temperature of 20 ° C.

As a representative but non-limiting example, we take a flap shutter 0.6 m wide and 1.2 m high, an area of 0.72 m ² .

For a wind speed equal to 10 m / s (36 km / h), the force F1 exerted on the flap is therefore 43 N, while it becomes equal to 389 N for a wind speed equal to 30 m / s (108 km / h).

Force F1 applies to the center of gravity of the shutter. We deduce the torque C1 relative to the vertical pivot axis (torque on the hinges) by multiplying by the half-width of the flap, here 0.3 m.

For a wind of 36 km / h, the torque C1 is 13 Nm, while it is 117 Nm for a wind of 108 km / h.

The torque C2 on the output shaft of the actuator, that is to say on the output stage of the gearbox, depends on the nature of the connecting means. For a pivoting arm similar to that of the prior art, a torque C2 10% greater than the torque C1 is obtained, ie approximately equal to 14 Nm for a wind of 36 km / h and 128 Nm for a wind of 108 km / h, wind speed that the flap actuators present on the market are able to withstand.

In order to ensure sufficient safety in case of wind up to 30 m / s, a safety factor is applied to the calculation of the maximum torque supplied by the actuator. This becomes for example CMAX = 130 Nm for a theoretical value of 117 Nm

Precisely, this choice of maximum torque CMAX on the output stage of the gearbox corresponds to a maximum wind speed VMAX equal to 30.2 m / s or 108.7 km / h.

The second step may be performed using simulation computing means, rather than in analytical form, and may include CMAX sizing and selection rules derived from the experiment. Of course, all the elements of the gearbox are also dimensioned according to the maximum torque value CMAX present on the output stage.

In a third dimensioning step S03, an electric motor and power supply unit is chosen such that the starting torque CD of the electric motor is slightly greater than the minimum value CDMIN, for example greater than 10% to 30% (to take in particular, the increase in dry friction with aging). In addition, this starting torque is less than only half of the maximum value CMAX brought back to the electric motor, that is to say divided by the reduction ratio: CD ≤ CMAX / 2R.

Preferably, a torque at startup CD is taken less than a quarter of the maximum value brought back on the electric motor: CD ≤ CMAX / 4R.

A lower value is however possible if the dry friction is weak and if the trajectory does not present hard points. For example, the output torque of the actuator driven by the electric motor and powered by the supply means can not exceed 15 Nm, while the output stage of the actuator is sized to support 130 Nm

In summary, the invention transforms the specific constraints of the flaps in a virtuous circle: unlike the teaching of the prior art, the engine of the operating device according to the invention is undersized, unable to cause the flap in the case of a strong wind established. It thus becomes an excellent sensor of the effects of wind on the flap, which makes it possible to detect the presence of wind unambiguously or at least much finer than in the prior art. This also makes it possible to set up a backup procedure, preferentially in the direction of wind effects. This still allows to warn the user, when it has issued a command from a remote control device or general command. A manual release device acting on the gearbox then allows manual operation, at the initiative of the user, not causing rotation of the engine.

This allows the realization of small-sized actuators, affordable, aesthetic, simple and easy to install. In addition, the consumption of the electric actuator being limited by the use of an undersized motor (compared to those known from the prior art) and by the absence of additional elements such as an electromagnet, the The invention lends itself to the realization of a device powered autonomously, for example using a photovoltaic panel, which further facilitates its installation.

This finally allows greater user safety in the event of an obstacle and in particular pinching of the fingers: the under-dimensioning of the motor guaranteeing the absence of serious damage, even in the event of failure of a component of the unit command used in obstacle detection.

The figure 9 represents particular torque values and torque ranges relating to the electric actuator, illustrating the sizing method and the choices selected for an actuator according to the invention.

Due to its good starting torque characteristics, a series-type DC motor can also be used as an electric motor, or a universal type universal motor. In this case the invention can benefit from the low costs of these engines widely used in home appliance applications and a direct connection to the AC sector can be used if an autonomous application is not targeted. However, an essential advantage of the invention is to facilitate an autonomous application, that is to say without wiring, because of the under-dimensioning of the electric motor and the supply means.

Claims (15)

An actuating device (110) for a swing shutter comprising at least one electric actuator (11, 21) and a connecting means (12, 22) for the flap flap to the electric actuator, the electric actuator comprising a means for power supply (37), an electric motor (24) and a reduction gear (27) having a reduction ratio (R) and arranged between the electric motor and the connecting means, an output stage of the gear unit being subjected to a maximum torque ( CMAX) transmitted by the connecting means when the flap is subjected to a wind whose wind speed reaches a maximum wind speed (VMAX), with VMAX for example equal to 30 m / s, characterized in that the maximum torque drive (CD) of the electric motor powered by the supply means is less than half the maximum torque (CMAX), or even less than a quarter of the maximum torque (CMAX), divided by the reduction ratio, and that the actuator comprises a manual release means (26) located between the electric motor and an output stage (27a) of the gearbox. Operating device according to claim 1, characterized in that it comprises wind detection means (30a, 34-36). Operating device according to claim 2, characterized in that it comprises a signaling means (30b, 38, 40, 41, 43) activatable by the wind detection means. Operating device according to one of the preceding claims, characterized in that it comprises a means for detecting the activation of the disengaging means (28, 30c). Operating device according to one of the preceding claims, characterized in that it comprises a first blocking means comprising a direct short-circuiting means and / or a short-circuit resisting means of a link connection. supplying the actuator and / or a second locking means (124) comprising a sliding means such as a magnetic brake, in particular a magnetic brake whose braking torque is less than 0.8 times the maximum torque (CMAX). A method of controlling an operating device according to one of the preceding claims, characterized in that it comprises at least one of the following steps: A step of detecting the action of the wind on the swing flap using the wind detection means, and then ● a step of performing a backup procedure, A signaling step, using the signaling means,
and ● following activation of the manual disengaging means, a step of detecting a change of state of a disengagement means of the electric actuator. Control method according to claim 6, characterized in that the step of detecting the action of the wind analyzes, outside abutment zones, at least a first internal parameter of the actuator for detecting the action of the wind. Control method according to claim 6 or 7, characterized in that the step of detecting the action of the wind analyzes, outside stop zones, a first internal parameter representative of the speed of the electric motor and a second internal parameter electrical actuator representative of his couple and concludes with the presence of wind when the second internal parameter exceeds a second threshold while the first internal parameter exceeds a first threshold. Control method according to claim 6, characterized in that , when the operating device comprises two actuators, the step of detecting the action of the wind analyzes an internal parameter of each actuator, and concludes with the presence of wind when it There is a correlation, notably an instantaneous correlation, between variations of the internal parameter of the first actuator and variations of the internal parameter of the second actuator. Control method according to claim 9, characterized in that the internal parameter of each actuator is representative of the speed and / or the torque of the electric motor contained in the actuator. Control method according to one of claims 6 to 10, characterized in that the backup procedure comprises a shutdown of the actuator. Control method according to one of claims 6 to 10, characterized in that the backup procedure comprises a continuation of the current motion in the case where a torque decrease supplied by the electric actuator is detected and / or in the case where the electric actuator experiences a motor torque. Control method according to the preceding claim, characterized in that the signaling step is inhibited when the ongoing movement is continued during the execution stage of the backup procedure. Control method according to one of Claims 6 to 13, characterized in that at least one short-circuit means is activated during the execution of the backup procedure. Operating device (110) for a swing shutter comprising means (11, 21, 30, 38, 37) hardware and / or software implementation of the steps of the method according to one of claims 6 to 14 or implementation implementation of the method according to one of claims 6 to 14.

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