FR3090727A1 - Electromechanical home automation actuator with Oldham seal. - Google Patents

Abstract

Electromechanical home automation actuator with Oldham seal Electromechanical actuator (11) for closing, blackout or sun protection installation (6), the electromechanical actuator (11) comprising at least a first mechanical vibration filtering module (33) , the electromechanical actuator (11) extending along a longitudinal axis (X), the first mechanical vibration filtering module (33) comprising: - an input part (33a), - an output part (33b) , - an intermediate piece (33i), - a first slide link (116), along a first axis (Y1), between the intermediate piece and the input piece, - a second slide link (117), along a second axis (Z1), between the intermediate part and the output part, - first elements (90a, 91a, 91i, 93a, 93i) for limiting movement, in translation along at least one of the first axis (Y1) and of the longitudinal axis (X) of the entry piece relative to the intermediate piece. Figure for abstract: 10

Description

Invention title: Oldham electromechanical home automation actuator.

The invention relates to an electromechanical actuator for a closure, concealment or sun protection installation, in particular an actuator comprising an Oldham seal. The invention also relates to an installation comprising such an electromechanical actuator.

In general, the present invention relates to the field of closing, screening or sun protection installations comprising a motorized drive device which sets in motion a screen, between at least a first position and at least a second position .

A motorized drive device comprises an electromechanical actuator of a movable element for closing, concealing or sun protection such as a shutter, a door, a grid, a blind or any other equivalent material, called by the "screen" suite.

The electromechanical actuator is intended to be mounted inside a winding tube on which the screen is wound. In addition, the electromechanical actuator comprises at least one electric motor and a reduction gear. The electric motor and the reducer generate vibrations during the operation of the electromechanical actuator. These vibrations are transmitted to the elements surrounding the electric motor, in particular to a housing of the electromechanical actuator, to the winding tube and to the structure supporting the actuator.

[0005] Consequently, when the electromechanical actuator is put into operation and in an assembled configuration of the electromechanical actuator in the installation, the electromechanical actuator generates noise.

Document EP 0 531 079 A1 is already known which describes vibration dampers mounted on either side of a motor for driving a winding tube for a closing or sun protection installation. These vibration dampers include an elastic coupling piece or rubber disc, for example made of neoprene. Transmission shafts are mounted on either side of this elastic part. Thus, the torque is transmitted through the elastic coupling part, by biasing the latter.

The elastic materials forming these torque transmission links are subject to various phenomena which can alter their behavior over time, for example:

- the accommodation of the material or softening after several cycles,

- stiffening due to the frequency of stress (especially in the case of vibrations), - internal heating of the material,

- the fining or relaxation of the structure: the viscous behavior of the elastomers leads to a loss of rigidity of the material under the application of a static load, - the fatigue of the material due to cyclic stresses.

One of the particular problems for actuators of a solar protection installation using couplings using elastic parts is that of creep or relaxation. Over time, in fact, there can be a deformation of these couplings which leads to a shift in angular position. These offsets can reach significant values which lead to a visually perceptible offset between two sun protection screens placed side by side on a facade.

The object of the invention is to provide an actuator which overcomes the drawbacks mentioned and which improves the actuators known from the prior art. In particular, the invention provides a simple actuator, limiting the transmission of engine vibrations to the structure supporting it and eliminating the problems of creep.

According to a first aspect of the invention, an electromechanical actuator for closing, blackout or sun protection installation comprises a motor assembly, comprising an electric motor and a reduction gear, a first mechanical vibration filtering module, a second mechanical vibration filter module and an output shaft, inserted at least partially into a housing of the electromechanical actuator, the electromechanical actuator extending along a longitudinal axis, the first and second mechanical vibration filter modules being arranged on either side of the motor assembly along the longitudinal axis and each comprising a rigid transmission coupling, having at least a first degree of freedom perpendicular to the longitudinal axis of the electromechanical actuator, authorizing a displacement of the motor assembly along a plane perpendicular to the longitudinal axis of the electromechanical actuator, the electric actuator ectromechanical further comprising at least one elastic module limiting the movement of the motor assembly along the plane perpendicular to the longitudinal axis of the electromechanical actuator.

The elastic module limits the movement of the motor assembly relative to the casing along the plane perpendicular to the longitudinal axis of the actuator induced by the first degree of freedom of the first and second mechanical vibration filter modules, perpendicularly to the longitudinal axis of the actuator. Indeed, due to the small differences in diameters of the engine assembly and the housing, it is important to avoid that the engine assembly, under the effect of its own weight, does not come into contact with the housing of the actuator.

According to an advantageous embodiment, the first mechanical vibration filtering module comprises a first input part mechanically linked directly or indirectly to a torque support, in particular linked to the casing, a first output part mechanically linked directly or indirectly to the motor assembly and a first intermediate part linked on the one hand to the first input part and on the other hand to the first output part and having at least one degree of freedom in translation in a direction perpendicular to the longitudinal axis with respect to the first input part and having at least one degree of freedom in translation in a direction perpendicular to the longitudinal axis with respect to the first output part. Likewise, the second mechanical vibration filter module comprises a second input part mechanically linked directly or indirectly to a torque support, in particular linked to the casing, a second output part mechanically linked directly or indirectly to the engine assembly. and a second intermediate part linked on the one hand to the second input part and on the other hand to the second output part and having at least one degree of freedom in translation in a direction perpendicular to the longitudinal axis by relative to the second input part and having at least one degree of freedom in translation in a direction perpendicular to the longitudinal axis with respect to the second output part.

The first mechanical vibration filter module thus provides the mechanical connection between the torque support, via the housing, and the engine assembly. The second mechanical vibration filter module provides the mechanical connection between the engine assembly and the actuator output shaft. Thus, the actuator according to the invention uses the capacity to cut off at least the radial vibrations of the rigid transmission coupling to at least one degree of freedom in order to produce a torsional rigid vibro-acoustic filter and avoids the use of elastic torsional elements.

Advantageously, the first output part of the first mechanical vibration filter module comprises an external interface, comprising external splines, adapted to be connected to the engine assembly.

Advantageously, the second input part of the second mechanical vibration filter module comprises an internal interface, provided with internal ribs, adapted to be connected to an output shaft of the engine assembly.

According to an advantageous embodiment, the first and second intermediate parts of the first mechanical vibration filter module and the second mechanical vibration filter module are identical.

According to an advantageous embodiment, the first output part of the first mechanical vibration filter module is identical to the second input part of the second mechanical vibration filter module.

Advantageously, the rigid transmission coupling of the first and / or the second mechanical vibration filter module comprises a second degree of freedom parallel to the longitudinal axis of the actuator.

This allows in particular the different moving parts according to the first degree of freedom, to be able to move freely relative to each other and ensure their vibration filtering function.

According to an advantageous embodiment, the first and / or the second mechanical vibration filter module comprises an Oldham seal or a Schmidt seal or a tripod coupling.

Advantageously, the first mechanical vibration filter module is hollow. This allows in particular the passage of motor power cables through the first mechanical vibration filter module.

According to an advantageous embodiment, the elastic module comprises a ring or a ring of flexible material, in particular of elastomeric and / or viscoelastic material, disposed around the engine assembly.

The elastic module limits the possible radial displacement of the motor assembly relative to the longitudinal axis of the electromechanical actuator, without however being subjected to torsional stress.

Advantageously, the elastic module comprises bosses forming its surface or surfaces in contact with the casing and / or the engine assembly.

Advantageously, the first mechanical vibration filter module comprises at least one element for fixing to the casing, in particular at least one rib and / or at least one cavity.

The invention also relates to a home automation system for closing, masking or sun protection comprising a screen, a winding tube and an electromechanical actuator, the screen being rollable on the winding tube driven in rotation by the electromechanical actuator, the electromechanical actuator comprising a motor assembly, comprising an electric motor and a reduction gear, a first mechanical vibration filter module, a second mechanical vibration filter module and an output shaft, inserted at least partially into an electromechanical actuator housing, the electromechanical actuator extending along a longitudinal axis, the first and the mechanical vibration filter module being arranged on either side of the motor assembly along the longitudinal axis and each comprising a rigid transmission coupling, having at least a first degree of freedom perpendicular to the longitudinal axis of the act electromechanical actuator, allowing movement of the motor assembly along a plane perpendicular to the longitudinal axis of the electromechanical actuator, the electromechanical actuator further comprising at least one elastic module limiting the displacement of the motor assembly along the plane perpendicular to the longitudinal axis of the electromechanical actuator.

According to the first aspect, objects of the invention are defined by the following definitions:

1. Electromechanical actuator for closing, blackout or sun protection installation, the electromechanical actuator comprising a motor assembly, comprising an electric motor and a reduction gear, a first mechanical vibration filtering module, a second mechanical module filter and an output shaft, inserted at least partially into a housing of the electromechanical actuator, the electromechanical actuator extending along a longitudinal axis, the first and second mechanical vibration filter modules being arranged on the side and on the other side of the motor assembly along the longitudinal axis and each comprising a rigid transmission coupling, having at least a first degree of freedom perpendicular to the longitudinal axis of the electromechanical actuator, allowing movement of the motor assembly along a plane perpendicular to the longitudinal axis of the electromechanical actuator, the electromechanical actuator canique further comprising at least one elastic module limiting the movement of the motor assembly along the plane perpendicular to the longitudinal axis of the electromechanical actuator.

2. Electromechanical actuator according to definition 1, characterized in that the first mechanical vibration filtering module comprises a first input part mechanically linked directly or indirectly to a torque support, in particular linked to the casing, a first output part mechanically linked directly or indirectly to the engine assembly and a first intermediate part linked on the one hand to the first input part and on the other hand to the first output part and having at least one degree of translational freedom in a direction perpendicular to the longitudinal axis relative to the first input part and having at least one degree of translational freedom in a direction perpendicular to the longitudinal axis relative to the first output part and in that the second mechanical vibration filter module comprises a second input part mechanically linked directly or indirectly to a torque support, in particular linked to the housing, a second output part mechanically linked directly or indirectly to the engine assembly and a second intermediate part linked on the one hand to the second input part and on the other hand to the second output part and having at least one degree of freedom in translation in a direction perpendicular to the longitudinal axis relative to the second entry piece and having at least one degree of freedom in translation in a direction perpendicular to the longitudinal axis by compared to the second output piece.

3. Electromechanical actuator according to definition 2, characterized in that the first output part of the first mechanical vibration filter module comprises an external interface, comprising external splines, adapted to be connected to the motor assembly.

4. Electromechanical actuator according to definition 3, characterized in that the second input part of the second mechanical vibration filtering module comprises an internal interface, provided with internal ribs, adapted to be connected to an output shaft of the motor assembly.

5. Electromechanical actuator according to one of the definitions 2 to 4, characterized in that the first and second intermediate parts of the first mechanical vibration filter module and of the second mechanical vibration filter module are identical.

6. Electromechanical actuator according to one of definition 2 to 5, characterized in that the first output part of the first mechanical vibration filter module is identical to the second input part of the second mechanical filter module. vibrations.

7. Electromechanical actuator according to one of the definitions 1 to 6, characterized in that the rigid transmission coupling of the first and / or of the second mechanical vibration filtering module comprises a second degree of freedom parallel to the longitudinal axis of the actuator.

8. Electromechanical actuator according to one of the definitions 1 to 7, characterized in that the first and / or the second mechanical vibration filtering module comprises an Oldham seal or a Schmidt seal or a tripod coupling .

9. Electromechanical actuator according to one of the definitions 1 to 8, characterized in that the first mechanical vibration filter module is hollow.

10. Electromechanical actuator according to one of the definitions 1 to 9, characterized in that the elastic module comprises a ring or a ring of flexible material, in particular of elastomeric and / or viscoelastic material, disposed around the motor assembly .

11. Electromechanical actuator according to definition 10, characterized in that the elastic module comprises bosses forming its surface or surfaces in contact with the casing and / or the motor assembly.

12. Actuator according to one of the definitions 1 to 11, characterized in that the first mechanical vibration filtering module comprises at least one element for fixing to the casing, in particular at least one rib and / or at least one cavity .

13. Home automation system for closing, masking or sun protection comprising a screen, a winding tube and an electromechanical actuator according to any one of definitions 1 to 12, the screen being rollable on the tube d winding driven in rotation by the electromechanical actuator.

According to a second aspect of the invention, objects of the invention are defined by the following definitions:

14. Electromechanical actuator for closing, blackout or sun protection installation, the electromechanical actuator comprising, inserted at least partially into a casing of the electromechanical actuator:

- an engine assembly, comprising an electric motor and a reduction gear,

- an output shaft, and

- At least a first mechanical vibration filter module, the electromechanical actuator extending along a longitudinal axis, the first mechanical vibration filter module being disposed along the longitudinal axis and comprising a rigid transmission coupling, having at least a first degree of freedom perpendicular to the longitudinal axis of the electromechanical actuator, allowing the motor assembly to move along a plane perpendicular to the longitudinal axis of the electromechanical actuator, the first mechanical filter module of vibration including:

- an entrance room,

- an exit piece,

- an intermediate piece,

- a first slide connection, along a first axis, between the intermediate piece and the entry piece,

- a second slide connection, along a second axis, between the intermediate part and the output part, the first axis and the second axis being perpendicular to the longitudinal axis of the electromechanical actuator,

- first displacement limitation elements, in translation along at least one of the first axis and the longitudinal axis, of the entry piece relative to the intermediate piece and / or second displacement limitation elements, translation along at least one of the second axis and the longitudinal axis, of the outlet part relative to the intermediate part.

15. Electromechanical actuator according to definition 14, characterized in that the first displacement limiting elements include:

- the first tongues forming part of the entry piece or of the intermediate piece, the first tongues extending mainly along the longitudinal axis, and

- abutment surfaces forming respectively part of the intermediate piece or the entry piece, in particular intended to cooperate by contact with the first tongues, in particular intended to cooperate by contact with first faces of the first tongues.

16. Electromechanical actuator according to one of definitions 14 and 15, characterized in that the second displacement limitation elements include:

- second tongues forming part of the outlet part or of the intermediate part, the second tongues extending mainly along the longitudinal axis, and

- abutment surfaces forming respectively part of the intermediate piece or the output piece, in particular intended to cooperate by contact with the second tongues, in particular intended to cooperate by contact with second faces of the second tongues.

17. Electromechanical actuator according to one of the definitions 15 and 16, characterized in that each first tongue comprises at least a first flexible part, in particular a first flexible arm or two first flexible arms and / or in that each second tongue comprises at least a second flexible part, in particular a second flexible arm or two second flexible arms.

18. Electromechanical actuator according to definition 17, characterized in that each first tongue comprises at least one first inclined end face and / or in that each second tongue comprises at least one second inclined end face.

19. Electromechanical actuator according to one of the definitions 14 to 18, characterized in that the electromechanical actuator further comprises at least one elastic module limiting the movement of the motor assembly along the plane perpendicular to the longitudinal axis of the electromechanical actuator.

20. Electromechanical actuator according to definition 19, characterized in that the elastic module comprises a ring or a ring of flexible material, in particular of elastomeric and / or viscoelastic material, arranged around the motor assembly.

21. Electromechanical actuator according to definition 20, characterized in that the elastic module comprises bosses forming its surface or surfaces in contact with the casing and / or the motor assembly.

22. Electromechanical actuator according to one of the definitions 14 to 21, characterized in that the input part of the first mechanical vibration filtering module is mechanically linked directly or indirectly to a torque support, in particular linked to the housing, the output part is mechanically linked directly or indirectly to the engine assembly.

23. Electromechanical actuator according to one of the definitions 14 to 22, characterized in that it comprises a second mechanical vibration filtering module, the first and the second mechanical vibration filtering modules being arranged on either side. other of the engine assembly along the longitudinal axis.

24. Electromechanical actuator according to definition 23, characterized in that the second mechanical vibration filtering module comprises

- an entrance room,

- an exit piece,

- an intermediate piece,

- a first slide connection, along a first axis, between the intermediate piece and the entry piece,

- a second slide connection, along a second axis, between the intermediate part and the output part, the first axis and the second axis being perpendicular to the longitudinal axis of the electromechanical actuator,

- first displacement limitation elements, in translation along at least one of the first axis and the longitudinal axis, of the entry piece relative to the intermediate piece and / or second displacement limitation elements, translation along at least one of the first axis and the longitudinal axis), of the outlet part relative to the intermediate part.

25. Electromechanical actuator according to one of the definitions 14 to 24, further comprising a vibration absorption module and a torque support, inserted at least partially in the casing,

- the input part of the first mechanical vibration filter module being mechanically linked directly or indirectly to the housing,

the output part of the first mechanical vibration filter module being mechanically linked to the torque support, the mechanical vibration filter module ensuring the mechanical connection between the casing and the torque support rotating around the longitudinal axis of the actuator, the vibration absorption module mechanically connecting the housing to the torque support in translation perpendicular to the longitudinal axis of the actuator by allowing a degree of freedom in rotation between the housing and the torque support around the longitudinal axis.

26. Actuator according to definition 25, characterized in that the vibration absorption module comprises a first ring of flexible material, in particular of elastomeric and / or viscoelastic material, disposed around a part of the torque support and a second ring of rigid material, disposed around the first ring or inserted into the first ring.

27. Home automation system for closing, masking or sun protection comprising a screen, a winding tube and an electromechanical actuator according to any one of the preceding definitions 14 to 26, the screen being rollable up on the tube winding driven in rotation by the electromechanical actuator.

Unless logical or technical incompatibility, any combination of characteristics of an object according to the first aspect of the invention and characteristics of an object according to the second aspect of the invention is conceivable.

The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the accompanying drawings in which: [0058] [fig.l]

Figure 1 is a schematic cross-sectional view of a conforming installation according to one embodiment;

[Fig.2]

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

[Fig.3]

Figure 3 is a partial view of an embodiment of an electromechanical actuator of the installation illustrated in Figures 1 and 2;

[Fig.4]

Figure 4 is a longitudinal sectional view of an embodiment of the electromechanical actuator illustrated in Figure 3;

[Fig.5]

Figure 5 is an exploded view according to a first perspective of an embodiment of a first mechanical vibration filtering module of the electromechanical actuator illustrated in Figures 3 and 4;

[Fig.6]

Figure 6 is an exploded view from a second perspective of the first mechanical vibration filter module illustrated in Figure 5;

[Fig.7]

Figure 7 is an exploded view according to a first perspective of an embodiment of a second mechanical vibration filtering module of the electromechanical actuator illustrated in Figures 3 and 4;

[Fig.8]

Figure 8 is a schematic view of an electromechanical actuator of the installation illustrated in Figures 1 and 2 according to a second embodiment; [Fig.9]

Figure 9 is another assembled perspective view of the first mechanical vibration filter module illustrated in Figures 5 and 6;

[Fig.10]

Figure 10 is an exploded perspective view of the first mechanical vibration filter module illustrated in Figures 5 and 6;

[Fig. 11]

Figure 11 is an assembled perspective view of the second mechanical vibration filtering module illustrated in Figure 7;

[Fig. 12]

Figure 12 is a partial sectional view of another embodiment of an electromechanical actuator;

[Fig.13]

Figure 13 is another exploded perspective view of this other embodiment. Firstly, with reference to FIGS. 1 and 2, an embodiment of an installation 6 is described. This installation equips a building B comprising an opening 1, in particular a window or a door. The installation 6 comprises a device 3 for closing, blocking 3 or sun protection, in particular a motorized blind. The device 3 includes a screen 2.

The device 3 can be a blind, in particular a canvas, rollable, a pleated blind or slats. The device 3 can also be a rolling shutter or a rolling gate. The device 3 can also be of any other type.

We also describe, with reference to Figures 1 and 2, an embodiment of the device 3 in the form of a motorized roller blind 3.

The device 3 comprises a winding tube 4 and a motorized drive device 5 comprising an electromechanical actuator 11.

The screen 2 of the device 3 is wound on the winding tube 4 driven by the motorized drive device 5. Thus, the screen is movable between a wound position, in particular a high position, and a position unrolled, especially a low position.

The screen 2 of the device 3 is a closing screen, blackout and / or sun protection, winding and unwinding around the winding tube 4, whose inner diameter is substantially greater than the outer diameter of the electromechanical actuator 11, so that the electromechanical actuator 11 can be inserted into the winding tube 4, during the assembly of the device 3.

The device 3 comprises a holding device 9, 23. For example, the holding device 9, 23 can comprise two accessories 23. An accessory 23 is arranged at each end of the winding tube 4, in an assembled configuration of the device 3. Thus, the winding tube 4 is held by means of the accessories 23. Only one of the accessories 23 is shown in FIG. 1. The accessories 23 allow the device 3 to be mechanically linked to the structure of the building B , in particular to a wall M of the building B. The holding device 9, 23 may comprise a box 9. In addition, the winding tube 4 and at least part of the screen 2 are housed inside the box 9, in the assembled configuration of the device 3. In general, the box 9 is arranged above the opening 1, or even in the upper part of the opening 1. As illustrated in FIG. 1, the accessories 23 are preferably also housed inside the box 9. As a variant, shown in FIG. 2, the winding tube 4 is held by means of the box 9, in particular by means of cheeks 10 of the box 9.

The device 3 can also include two lateral slides 26, as illustrated in FIG. 2. Each lateral slide 26 includes a groove 29. Each groove 29 of one of the lateral slides 26 cooperates, in other words is configured to cooperate, with a lateral edge 2a of the screen 2, in the assembled configuration of the device 3, so as to guide the screen 2, during the winding and unwinding of the screen 2 around the winding tube 4.

The electromechanical actuator 11 is for example of the tubular type. It allows the winding tube 4 to rotate around its longitudinal axis X so as to unwind or wind the screen 2 of the device 3. In the assembled state, the electromechanical actuator 11 is inserted into the tube d winding 4.

The device 3 also includes a load bar 8 for exerting tension on the screen 2, for example for exerting a weight on the screen 2.

The roller blind, which forms the device 3, comprises a canvas, forming the screen 2 of the roller blind 3. A first end of the screen 2, in particular the upper end of the screen 2, in the assembled configuration of the device 3, is fixed to the winding tube 4. In addition, a second end of the screen 2, in particular the lower end of the screen 2, in the assembled configuration of the device 3, is fixed to the load bar 8. For example, the fabric forming the screen 2 is made from a textile material. In an exemplary embodiment, not shown, the first end of the screen 2 has a hem through which is arranged a rod, in particular made of plastic. This hem produced at the first end of the screen 2 is obtained by sewing the fabric forming the screen 2. When assembling the screen 2 on the winding tube 4, l the hem and the rod located at the first end of the screen 2 are inserted by sliding in a groove made on the external face of the winding tube 4, in particular over the entire length of the winding tube 4, so as to be able to wind and unwind the screen 2 around the winding tube 4.

In the case of a roller blind, the high rolled up position corresponds to a predetermined high end position, or even when the load bar 8 of the screen 2 is pressed against an edge of a box 9 of the roller blind 3, and the unwound lower position corresponds to a predetermined low end position, or when the load bar 8 of the screen 2 is pressed against a threshold 7 of the opening 1 , or the complete screen 2.

Advantageously, the motorized drive device 5 is controlled by a control unit. The control unit can be, for example, a local control unit 12 or a central control unit 13.

Advantageously, the local control unit 12 can be connected by wired or non-wired link with the central control unit 13.

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

Advantageously, the central control unit 13 can be in communication with a weather station located inside the building B or remote 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, in the case where the weather station is deported outside building B.

A remote control 14, which can be a type of local control unit, and provided with a control keyboard, which includes selection and display elements, also allows a user to operate on the electromechanical actuator 11 and / or the central control unit 13.

The motorized drive device 5 is preferably configured to execute the unwinding or winding commands for the screen 2 of the device 3, which can be issued, in particular, by the local control unit 12, the central control unit 13 or the remote control 14.

We now describe, in more detail and with reference to Figures 3 and 4, an embodiment of the electromechanical actuator 11 of Figures 1 and 2.

The electromechanical actuator 11 comprises a motor assembly 16, comprising an electric motor 261. The electric motor comprises a rotor 262 and a stator 263, positioned coaxially around a longitudinal axis X, which is also the axis of rotation of the winding tube 4 in the mounted configuration of the motorized drive device 5. The motor assembly also comprises a reduction gear 265. Advantageously, the reduction gear 265 comprises at least one reduction stage. The reduction stage can be an epicyclic type gear train. The type and number of reduction stages of the reducer are not limiting. The motor assembly also includes a 16u tube in which the electric motor 261 and the reducer 265 are housed.

Advantageously, the electromechanical actuator 11 also includes a brake, not shown. By way of non-limiting examples, the brake can be a spring brake, a cam brake or a magnetic or electromagnetic brake. The brake can also be part of the engine assembly 16 and be housed in the tube 16u of the engine assembly 16.

Advantageously, the motor assembly and possibly the brake are disposed inside a casing 17 of the electromechanical actuator 11, the casing 17 being shown diagrammatically in dotted lines in FIG. 4. The casing 17 or housing of the electromechanical actuator 11 is of cylindrical shape, in particular of revolution. In an exemplary embodiment, the casing 17 is made of a metallic material, but the material of the casing of the electromechanical actuator is not limiting and may be different. It can be, in particular, a plastic material.

Advantageously, the electromechanical actuator 11 comprises an output shaft 20, driven in rotation by the motor assembly 16.

Control means of the electromechanical actuator 11, allowing the movement of the screen 2 of the device 3, comprise at least one electronic control unit 15, shown diagrammatically in FIG. 8. This electronic control unit 15 is able to operate the motor assembly 16 of the electromechanical actuator 11, and, in particular, allow the supply of electrical energy to the electric motor 261 of the motor assembly 16.

Thus, the electronic control unit 15 controls in particular the power supply to the electric motor of the motor assembly 16, so as to open, in particular wind, or close, in particular unwind, the screen 2, as described above.

The electronic control unit 15 also includes a communication module 27, as illustrated in FIG. 2, in particular for receiving control orders. Control orders are issued by an order transmitter, such as the remote control 14 intended to control the electromechanical actuator 11 or one of the local or central control units 12.

Preferably, the communication module 27 of the electronic control unit 15 is of the wireless type. In particular, the communication module 27 is configured to receive radio control commands.

The communication module 27 can also allow the reception of control orders transmitted by wired means.

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

The control means of the electromechanical actuator 11 include hardware and / or software means. By way of nonlimiting example, the hardware means can comprise at least one microcontroller, configured to manage the operation of the control unit and the operation of the electric motor. Advantageously, the electronic control unit 15 is configured to control the electric motor of the motor assembly 16. The electronic control unit 15 can thus include an electronic card, which can in particular support one or more push buttons, one or more light-emitting diodes, as well as for example programming input-output contacts. The electromechanical actuator 11 may also include a device for detecting the end of the travel and / or obstacle, which may be mechanical or electronic.

Advantageously, the electromechanical actuator 11 is supplied with electrical energy. The electromechanical actuator 11 comprises an electrical power cable allowing it to be supplied with electrical energy, from an external source such as the mains supply or from a battery or a charger. Advantageously, the electronic control unit 15 and the motor 16 can be supplied with electrical energy by means of the electrical supply cable 18. Alternatively, the electromechanical actuator 11 incorporates a battery, replaceable or rechargeable via the electrical cable.

Advantageously, the electromechanical actuator 11 comprises a torque support 21 (or actuator head) shown diagrammatically in FIG. 8. The torque support 21 is arranged at one end of the housing 17 of the actuator electromechanical 11, in an assembled configuration of the electromechanical actuator 11. The torque support 21 makes it possible to take up the forces exerted by the electromechanical actuator 11 and to ensure the resumption of the forces exerted by the actuator, in particular the torque exerted by the electromechanical actuator 11, by the structure of the building B. The torque support 21 advantageously makes it possible to also take up the forces exerted by the winding tube, in particular the weight of the winding tube, of the electromechanical actuator and of the screen, and of ensuring the resumption of these forces by the structure of the building B. The torque support 21 of the electromechanical actuator 11 can also make it possible to close one end of the casing 17 of the electromechanical actuator 11. Furthermore, the torque support 21 of the electromechanical actuator 11 can make it possible to support at least part of the electronic control unit.

Thus, the torque support 21 of the electromechanical actuator 11 makes it possible to fix the electromechanical actuator 11 on the holding device 9, 23, in particular to one of the accessories 23 or to one of the cheeks 10 of the housing 9.

Advantageously, the torque support 21 projects from the end of the casing 17 of the electromechanical actuator 11.

The winding tube 4 of the device 3 is rotated around the axis of rotation X and the casing 17 of the electromechanical actuator 11 while being supported by means of two pivot links. The first pivot link is made at a first end of the winding tube 4 by means of a crown, not shown, inserted around one end of the casing 17 of the electromechanical actuator 11, near the support of torque 21. The crown thus makes it possible to produce a bearing. The second pivot link, not shown, is produced at a second end of the winding tube 4.

The output shaft 20 of the electromechanical actuator 11 is arranged at least partially outside the casing 17 of the electromechanical actuator 11. Here, one end of the output shaft 20 is projecting by relative to the casing 17 of the electromechanical actuator 11, in particular with respect to a second end 17b of the casing 17 opposite the first end 17a. The output shaft 20 of the electromechanical actuator 11 is configured to rotate a connecting element, not shown, connected to the winding tube 4. The connecting element is made in the form of a wheel. When the electromechanical actuator 11 is put into operation, the motor assembly 16, in particular the electric motor and the reduction gear, drive the output shaft 20 in rotation. The output shaft 20 of the electromechanical actuator 11 drives in rotation the winding tube 4 via the connecting element. Thus, the winding tube 4 rotates the screen 2 of the device 3, so as to wind or unwind the screen 2 and thus leave free or close the opening 1.

The electromechanical actuator 11 comprises, in addition to the motor assembly 16, the torque support 21 and the casing 17, a first mechanical vibration filter module 33 and a second vibration filter module 133. The first mechanical module vibration filter 33 mechanically links the torque support 21, through the housing 17, and the motor assembly 16 at least in rotation about the axis X of the electromechanical actuator. For this, the first mechanical vibration filtering module 33 comprises an input part 33a mechanically linked directly or indirectly to the casing, in particular in complete connection or at least by a connection preventing rotation about the X axis. The first mechanical vibration filtering module 33 comprises an output part 33b linked mechanically directly or indirectly to the engine assembly 16, in particular in complete connection or at least by a connection preventing rotation about the X axis. inlet 33a or outlet 33b can be linked respectively to the casing or to the motor assembly 16 by a billing process, that is to say by a deformation of the casing, respectively of the tube 16u of the motor assembly, opposite a fixing element, such as a cavity 125, shown in FIGS. 6 and 9 to 10 or a rib 126, visible in FIG. 5, so that the deformed casing cooperates with the cavity 125 to block in rotation and , preferably also in translation, the movement of the input piece 33a relative to the casing 17 or of the output piece 33b relative to the engine assembly 16. The first mechanical vibration filter module 33 also includes an intermediate piece 33i linked on the one hand to the input part 33a and on the other hand to the output part 33b. These parts will be explained in detail below.

The second mechanical vibration filtering module 133 comprises an input part 133a mechanically linked directly or indirectly to the engine assembly 16, in particular in complete connection or at least by a connection preventing rotation about the axis X. The second mechanical vibration filtering module 133 comprises an output part mechanically linked directly or indirectly to the output shaft 20 of the electromechanical actuator 11 in particular in complete connection or at least by a connection preventing rotation around the X axis. The second mechanical vibration filtering module 133 also comprises an intermediate part 133i linked on the one hand to the input part 133a and on the other hand to the output part 133b.

The first and second mechanical vibration filter modules are arranged on either side of the engine assembly 16 along the longitudinal axis X. In other words, the first and second mechanical filter modules of vibrations are at both ends of the motor assembly 16 relative to the longitudinal axis X.

The first and second mechanical vibration filter modules each comprise a rigid transmission coupling, having at least a first degree of freedom perpendicular to the longitudinal axis X of the actuator.

The electromechanical actuator 11 also includes one or more elastic modules 130, limiting the movement of the motor assembly relative to the casing 17 according to the first degree of freedom. Each elastic module 130 thus forms a deformable connection between the motor assembly 16 and the casing 17, in particular along the axis Z perpendicular to the longitudinal axis X. Preferably, the elastic module 130 is independent and forms an entity separate from the first or second mechanical vibration filter module (33, 133). Alternatively, a first elastic module 130 can be provided on the outlet part 33b of the first mechanical vibration filtering module 33 and / or on the motor assembly 16 and / or a second elastic module 130 can be provided on the workpiece input 133a of the second mechanical vibration filtering module 133 and / or on the motor assembly 16.

Thus, the mechanical vibration filtering modules 33, 133 make it possible to transmit mainly, or even exclusively, the torques around the X axis of the electric motor and / or of the casing to the torque support and ensure a cut in the transmission. radial and axial vibrations.

To do this, the mechanical vibration filter module mainly has torsional rigidity around the X axis between its first and second ends. Its stiffnesses to other stresses (traction, compression, bending) whatever the direction and the torsion according to the directions Y or Z perpendicular to the direction X are largely lower, even null. These low stiffnesses to other stresses allow the mechanical vibration filtering module to transmit very little vibration of the traction-compression type regardless of the direction of these vibrations. These low stiffnesses to other stresses also allow the mechanical vibration filtering module to transmit very few torsion-type vibrations whose direction is perpendicular to the X axis. This makes it possible to optimize the physical characteristics of the mechanical vibration filtering module. for good filtering of vibrations without any other constraint than mechanical resistance to torsion around the X axis.

In a first embodiment, illustrated in Figures 3 to 7, the first and / or the second mechanical vibration filtering module may include an Oldham seal, in particular as a rigid coupling. For example, the first mechanical vibration filtering module 33 is such that the intermediate piece 33i is linked to the entry piece 33a by a first slide link 116 and is linked to the exit piece 33b, by a second slide link 117 , the first and second slide links 116, 117 being of axes not parallel to each other, in particular of axes perpendicular to each other. The first and second slide links 116, 117 have their axes perpendicular to the X axis.

These slide links 116, 117 provide a degree of freedom radially with respect to the X axis, which allows the Oldham joint to cut the transmission of vibrations in the plane perpendicular to the X axis, in the directions. or axes Y (perpendicular to X) and Z (perpendicular to X and Y).

The slide links 116, 117 are formed in particular by internal walls 112, 113, 114, 115 formed in the intermediate piece 33i. Studs 101 of the entry piece 33a extending parallel to the longitudinal axis X and having contact surfaces 102, 103, cooperating with the internal walls 112, 113 of the intermediate piece 33i, ensure the translation of the piece intermediate 33i relative to the input part 33a, along the first axis Y. Studs 121 of the output part 133b extending parallel to the longitudinal axis X and having contact surfaces 122, 123, cooperating with the internal walls 114, 115 of the intermediate piece 33i, ensure the translation of the intermediate piece 33i relative to the outlet piece 33b, along the second axis Z.

The output part 33b comprises an external interface 127, comprising external splines 127c, adapted to be connected to the motor assembly 16. For example, the external splines 127c cooperate with the interior of the tube 16u of the assembly motor to form a fixed rotating link between the output part 33b and the motor assembly. The output piece 33b also includes an internal interface 128, provided with internal ribs 128n.

Advantageously, the inlet 33a, intermediate 33i and outlet 33b parts are hollow, leaving a central opening 34 free for the passage of motor power cables through the first mechanical vibration filtering module 33.

Equivalently, the second mechanical vibration filtering module 133 is such that the intermediate piece 133i is linked to the entry piece 133a by a third slide link 156 and is linked to the exit piece 133b by a fourth slide link 157, the third and fourth slide links 156, 157 being of axes not parallel to each other, in particular of axes perpendicular to each other. The third and fourth slide links 156, 157 have their axes perpendicular to the X axis.

These slide links 156, 157 provide a degree of freedom radially with respect to the X axis, which allows the Oldham joint to cut the transmission of vibrations in the plane perpendicular to the X axis, in the directions. or axes Y (perpendicular to X) and Z (perpendicular to X and Y).

The slide links 156, 157 are formed in particular by internal walls 152, 153, 154, 155 formed in the intermediate piece 133i. Studs 141 of the input piece 133a extending parallel to the longitudinal axis X and having contact surfaces 142, 143, cooperating with the internal walls 152, 153 of the intermediate piece 133i, ensure the translation of the piece intermediate 133i relative to the input part 133a, along the first axis Y. Studs 121 of the output part 133b extending parallel to the longitudinal axis X and having contact surfaces 162, 163, cooperating with the internal walls 154, 155 of the intermediate piece 133i, ensure the translation of the intermediate piece 133i relative to the outlet piece 133b, along the second axis Z.

The output part 133b comprises an output interface 167, comprising external splines 167c, adapted to be connected to the output shaft 20. For example, the external splines 167c cooperate with a hollow shaft of the shaft. output to form a fixed rotating link between the output piece 33b and the output shaft 20.

Advantageously, the intermediate parts 33i and 133i are identical. Similarly, the output part 33b of the first mechanical vibration filter module 33 is identical to the input part 133a of the second mechanical vibration filter module 133. Thus, an internal interface 128 of the input part 133b, identical to the internal interface 128 of the output part 33b of the first mechanical vibration filtering module 33 and visible in FIG. 5, makes it possible to provide a connection with an output shaft 16v of the motor assembly 16, fitted with gadroons cooperating with internal ribs 128n.

In the case where the electromechanical actuator comprises two Oldham seals, the axes of the slides of the two seals are not necessarily parallel.

The axes of the slides of the same Oldham joint are not necessarily perpendicular.

In the Oldham joints described above, the grooves and the studs could be reversed: the grooves could be on the inlet and outlet pieces and the studs could be on the intermediate pieces.

In the Oldham joints, the inlet and / or outlet parts and / or the intermediate parts can be made of plastic (polymer or polyamide) or metal.

Two examples of the first mechanical vibration filter module and the second mechanical vibration filter module are shown assembled in FIGS. 9 to 11. They are described below in more detail with reference to FIGS. 9 and 11.

The electromechanical actuator 11 may include a first mechanical vibration filtering module 33 of the Oldham seal type.

As seen previously, the first mechanical vibration filtering module 33 comprises:

- an entrance room 33a,

- an outlet part 33b,

- an intermediate piece 33i,

- a first slide link 116, along a first axis Yl, between the intermediate piece and the entry piece,

- A second slide link 117, along a second axis Zl, between the intermediate part and the output part. The first and second axes Yl and Zl are perpendicular to the longitudinal axis X.

The first mechanical vibration filtering module also comprises:

first elements 90a, 91a, 9li, 93a, 93i for limiting movement, in translation along at least one of the first axis Y1 and of the longitudinal axis X, of the input part relative to the intermediate part, and or

- Second elements 90b, 92b, 92i, 94a, 94i for limiting movement, in translation along at least one of the second axis Zl and the longitudinal axis X, of the output piece relative to the intermediate piece.

The electromechanical actuator 11 can advantageously comprise a second mechanical vibration filtering module 133 of the Oldham joint type.

In this case, the second mechanical vibration filtering module 133 can comprise:

- entrance room 133a,

- an output piece 133b,

- an intermediate piece 133i,

- a first slide link 116, along a first axis Yl, between the intermediate piece and the entry piece,

- A second slide link 117, along a second axis Zl, between the intermediate part and the output part. The first and second axes Yl and Zl are perpendicular to the longitudinal axis X.

The second mechanical vibration filtering module then advantageously comprises:

first elements 90a, 91a, 9li, 93a, 93i for limiting movement, in translation along at least one of the first axis Y1 and of the longitudinal axis X, of the input part relative to the intermediate part, and or

- Second elements 90b, 92b, 92i, 94a, 94i for limiting movement, in translation along at least one of the second axis ZI and the longitudinal axis X, of the output piece relative to the intermediate piece.

The first axes Y1 associated with the first mechanical vibration filter module and the second mechanical vibration filter module are not necessarily parallel. The second axes ZI associated with the first mechanical vibration filter module and the second mechanical vibration filter module are not necessarily parallel. The first axes Y1 associated with the first mechanical vibration filter module and the second mechanical vibration filter module can also be parallel. The second axes ZI associated with the first mechanical vibration filter module and the second mechanical vibration filter module can also be parallel.

The first displacement limiting elements include for example: - first tongues 90a forming part of the entry piece or of the intermediate piece, the first tongues extending mainly along the longitudinal axis X, and / or

- abutment surfaces 9li, 93i forming part of the intermediate piece or of the entry piece, in particular intended to cooperate by contact with the first tongues, in particular intended to cooperate by contact with first faces 91a, 93a of the first tongues .

The second displacement limitation elements include for example:

- second tongues 90b forming part of the outlet part or of the intermediate part, the second tongues extending mainly along the longitudinal axis, and

- abutment surfaces 92i, 94i forming part of the intermediate piece and / or of the outlet piece, in particular intended to cooperate by contact with the second tongues, in particular intended to cooperate by contact with second faces 92b, 94b of the second tabs.

In particular, the elements 91a and 9li make it possible to limit the displacements along the longitudinal axis X. Similarly, the elements 92a and 92i make it possible to limit the displacements along the longitudinal axis X.

In particular, the elements 92a and 92i make it possible to limit the displacements along the first axis Yl. Similarly, the elements 94a and 94i make it possible to limit the displacements along the second axis ZI.

Thus, for example, the mechanical vibration filtering module 33 or 133 can be maintained by the input part (with the longitudinal axis perpendicular to the earth's gravitational field) without the intermediate part being detached from the entry piece and without the exit piece being detached from the intermediate piece. Finally, the mechanical vibration filter module 33 or 133 can be held by the input part in any position without the intermediate part detaching from the input part and without the output part becoming separates from the intermediate piece.

In the embodiments of Figures 9 to 11, the faces 94a, 94b are formed on the tongues. However, these faces can alternatively be produced elsewhere than on the tongues.

In the embodiments shown in Figures 9 to 11, the first tabs 90a are part of the entry piece and the abutment surfaces 9li are part of the intermediate piece. However, the locations of these elements could be reversed. This would have the tabs on the intermediate piece and the abutment surfaces on the entry piece. Alternatively again, one or more tabs could be provided on the entry piece and one or more tabs could be provided on the intermediate piece.

In the embodiments shown in Figures 9 to 11, the second tabs 90b are part of the output piece and the abutment surfaces 92i are part of the intermediate piece. However, the locations of these elements could be reversed. There would thus be the second tabs on the intermediate piece and the abutment surfaces on the outlet piece. Alternatively still, one or more second tongues could be provided on the outlet part and one or more tongues could be provided on the intermediate part.

Preferably, each tongue 90a, 90b comprises at least one first flexible part 95a, 95b. This flexible part is for example a flexible arm 95a, 95 extending parallel to the longitudinal axis X. In the embodiments of FIGS. 9 to 11, each tongue 90a, 90b comprises two flexible arms 95a, 95b. Alternatively, a tongue or certain tongues or each tongue could comprise only one flexible part, in particular only one flexible arm.

As in the embodiments of Figures 9 to 11, the tongues are preferably made at the ends of the slides, in particular at the ends of the pads 101, 121, 141, 161 of the slides. With such a location, the tabs can also be used to limit the travel of the slide links. However, the tongues can be produced elsewhere than at the ends of the slides. The main objective in all embodiments is to limit the clearance between the input, intermediate and output parts along at least one of the three axes X, Yl, Zl, preferably along the three axes.

Preferably, the tongues, in particular the flexible parts, each comprise at least one first inclined end face 96a, in particular at their distal ends. In the embodiments of Figures 9 to 11, each tab comprises two inclined end faces 96a. By "inclined end face" means an oriented face forming a non-zero and non-right angle with the third direction X, for example an angle of the order of 45 °. The inclined faces are arranged so that when two parts of the mechanical vibration filter module are assembled, for example the input part 33a with the intermediate part 331, a force is exerted through the inclined surfaces, on the flexible parts of the tongues, causing them to flex. Once the parts are assembled, the effort on the inclined parts is released. In this state, the flexible parts return to their original unconstrained forms under the effect of the elastic restitution of the flexible portions. The flexible parts are therefore stressed in their area of elastic deformation during the assembly of the mechanical vibration filtering module. Once their original unconstrained shape has been found (or a deformed shape less stressed than during assembly found), the abutment surfaces 9li of the second part can interfere with the first faces 91a so as to prevent the first and second pieces don't separate from each other. However, separation remains possible after specific mechanical action on the flexible parts to offset them relative to the abutment surfaces 91a. Preferably, the part which carries the abutment surfaces can also be provided with ramps 97a, 97b intended to cooperate temporarily with the inclined faces 96a, 96b to facilitate assembly.

In other words, the entry piece clips onto the intermediate piece and the exit piece clips onto the intermediate piece.

Preferably, the first limiting elements are arranged so that the entry piece and the intermediate piece have a play JX1 of the order of a few millimeters.

Preferably, the second limiting elements are arranged so that the outlet part and the intermediate part have a JX2 play of the order of a few millimeters.

Preferably, the first limiting elements are arranged so that the entry piece and the intermediate piece have a play along the first axis Y1 of the order of a few millimeters.

Preferably, the second limiting elements are arranged so that the outlet part and the intermediate part have a play along the second axis ZI of the order of a few millimeters.

In FIGS. 3 to 7, the tongues 90a, 90b have not been shown.

Finally, it should be noted that in the figures, the parts 33a, 33i, 33b or 133a, 133i, 133b are shown with longitudinal axes coincident with each other and coincident with the X axis. The different parts of the mechanical modules vibration filtering are therefore described in this configuration. However, of course, the advantage of a mechanical vibration filtering module in the form of an Oldham seal lies in the fact that a mechanical torque of rotation about the longitudinal axis X (and preferably only one mechanical torque around the longitudinal axis X) can be transmitted from the input part to the output part whether or not the input and output parts are aligned.

As shown in FIGS. 12 and 13, a mechanical vibration filtering module 33 as described above can be included in an electromechanical actuator 11 for closing, concealment or sun protection installation 6. The electromechanical actuator 11 comprises an electric motor 16, a casing 17, the mechanical vibration filter module 33, a vibration absorption module 130 and a torque support 21, inserted at least partially into the casing 17. The mechanical filter module of vibrations 33 includes a first end 35 and a second end 39, separated by a length L. The first end 35 of the mechanical vibration filter module 33 is mechanically linked directly or indirectly to the casing 17. The second end 39 of the mechanical filter module 33 is mechanically linked to the torque support 21. The mechanical vibration filter module 33 provides the mechanical connection between the coach ter 17 and the torque support rotating around the longitudinal axis X of the actuator. The vibration absorption module mechanically links the casing 17 to the torque support 21 in translation perpendicular to the longitudinal axis X of the actuator by allowing a degree of freedom in rotation between the casing 17 and the torque support 21 around the longitudinal axis X.

The vibration absorption module 130 preferably comprises a first ring 131 of flexible material, in particular of elastomeric and / or viscoelastic material, disposed around a part 210 of the torque support 21 and a second ring 132 of material rigid, arranged around the first ring 131 or inserted into the first ring 131.

In a second embodiment illustrated in FIG. 8, a mechanical vibration filtering module can comprise a tripod or at least bipod type connection, for example as defined in patent application WO 2013/007642 A1 or in patent US6325722. For example, the first mechanical vibration filter module 33 is such that the intermediate part 233i is linked to the input part 233a by a first mechanical connection of the ball-joint type, ensuring a swiveling movement between the intermediate part 233i and the part inlet 233a and the intermediate piece 233i is linked to the outlet piece 233b by a second mechanical connection of the ball joint type ensuring a swiveling movement between the intermediate piece 233i and the outlet piece 233b. The first and second mechanical connections comprise for example first pins of the intermediate piece 233i cooperating with grooves of the input piece 233a (or vice versa first pins of the input piece 233a cooperating with grooves of the intermediate piece 233i ) and second pins of the intermediate piece 233i cooperating with grooves of the output piece 233b (or vice versa of the second pins of the output piece 233b cooperating with grooves of the intermediate piece 233i).

In the same way or alternatively, the second mechanical vibration filtering module 133 is such that the intermediate part 333i is linked to the input part 333a by a third mechanical connection of the ball joint type, ensuring a swiveling movement between the intermediate part 333i and the input part 333a and the intermediate part 333i is linked to the output part 333b by a fourth mechanical connection of the ball joint type ensuring a swiveling movement between the intermediate part 333i and the output part 333b. The first and second mechanical connections include for example first pins of the intermediate piece 333i cooperating with grooves of the input piece 333a (or vice versa first pins of the input piece 333a cooperating with grooves of the intermediate piece 333i ) and second pins of the intermediate piece 333i cooperating with grooves of the output piece 333b (or vice versa of the second pins of the output piece 333b cooperating with grooves of the intermediate piece 333i).

These ball or pivot type connections provide degrees of freedom radially with respect to the X axis, which allows tripod connections to cut the transmission of vibrations in the Y and Z directions.

In a third embodiment not shown, a mechanical vibration filter module can include or be a Schmidt joint. For example: the intermediate piece 33i, 133i is linked to the entry piece 33a, 133a by a first mechanical connection ensuring a circular translational movement between the intermediate piece 33i, 133i and the entry piece 33a, 133a and the piece intermediate 33i, 133i is linked to the output part 33b, 133b by a second mechanical connection ensuring a circular translational movement between the intermediate part 33i, 133i and the output part 33b, 133b. The first and second mechanical connections include for example first links connecting the intermediate piece 33i, 133i and the entry piece 33a, 133a and second links connecting the intermediate piece 33i, 133i and the exit piece 33b, 133b.

These ball or pivot type connections provide degrees of freedom radially with respect to the X axis, which allows the Schmidt joint to cut the transmission of vibrations in the Y and Z directions.

In the various embodiments of the mechanical vibration filtering modules 33, 133 described above, the input part 33a, 233a of the first mechanical vibration filtering module 33 is fixed directly or indirectly to the torque support 21 and the output part 133b, 333b of the second mechanical vibration filter module 133 is fixed to the output shaft 20. The first and second mechanical vibration filter module 33, 133 also each comprise a second degree of freedom in parallel to the longitudinal axis of the electromechanical actuator 11. This allows in particular the different moving parts according to the first degree of freedom, to be able to move freely with respect to each other and to perform their function of filtering vibrations.

Preferably, the first mechanical vibration filtering module 33 is fixed directly to the casing 17 by a rigid connection without degree of freedom. More preferably, the second mechanical vibration filter module is fixed directly to the output shaft 20 by a rigid connection without degree of freedom.

Alternatively, the output part 133b of the second mechanical vibration filtering module 133 is formed integrally by the output shaft 20.

The casing preferably extends above each mechanical vibration filter module to mask and protect it against external elements (dust, pollution ...).

The output shaft is kept in rotation relative to the casing 17 by an appropriate link, in particular by a part 35 forming a bearing, visible in FIG. 8.

The degree (s) of freedom of the mechanical vibration filtering modules 33, 133 allow a radial clearance relative to the axis X of the engine assembly relative to the casing 17. The transmission of the torque around the axis X however remains rigid in the sense that it does not call upon the elastic properties of an intermediate material such as an elastomer, but rather on rigid contacts between the parts of the couplings.

The electromechanical actuators used in closing, blackout or sun protection installations are mainly of tubular shape, that is to say elongated cylindrical, to be inserted in the winding tubes on which are wound the screens. They thus have a symmetry of revolution, around the longitudinal axis. They therefore have no predefined mounting angular orientation. By using couplings in accordance with the invention, a degree of freedom is allowed, perpendicular to the longitudinal axis of the actuator. It is therefore however necessary to limit the movement of the engine assembly in the housing, perpendicular to the longitudinal axis, so as to prevent the engine assembly from coming into rigid contact directly with the housing, in particular under the effect of its own weight. This limitation is taken care of in particular by the elastic module 130, which extends around the engine assembly 16.

To ensure the centering of the motor assembly 16, the elastic module 130 having a symmetry of revolution makes it possible to limit the displacement of the motor assembly 16 relative to the casing 17 according to the first degree of freedom and to avoid any contact direct between the engine assembly 16 and the housing 17.

The elastic module 130 can take the form of a ring or a ring of elastic or viscoelastic material, for example of elastomer, for example in the form of an O-ring or in the form of a flat ring, placed around of the engine assembly. The latter may or may not be in contact with the casing 17. In both cases, it limits the possible radial displacement of the engine assembly relative to the casing 17, without however being subjected to torsional stress. Preferably, the elastic module 130 comprises bosses or gadroons on its surfaces in contact with the casing 17 and / or the motor assembly 16, the bosses preferably being arranged parallel to an axis of symmetry XI30 of the elastic module 130. This axis XI30 is preferably confused with the X axis when the actuator is assembled. These bosses make it possible to limit the contact between the elastic module 130 and the engine assembly 16 and / or the casing 17, as well as to limit the stiffness of this contact, thus making it possible to limit the transmission of vibrations. These bosses or gadroons also facilitate the assembly of the motor assembly 16 in the casing 17 of the electromechanical actuator 11.

The flexibility in radial compression of the elastic module 130 makes it possible to limit the radial movements of the motor assembly, along the axes perpendicular to the axis of rotation X. Although the elastic module may be subject to creep phenomena or relaxation, these will have no impact on the angular position of the actuator output shaft. On the other hand, the elastic module 130 having a symmetry of revolution, the stresses linked to the weight of the motor assembly 16 during prolonged stops will be distributed over the entire circumference of the elastic module 130 since these prolonged stops will take place in angular positions different.

The elastic module 130 is slidably mounted on the engine assembly 16 and in the housing 17. It is thus held by simple contact on the engine assembly 16 and in the housing 17. Optionally, it is possible to provide zones d end 16s, 16t of the motor assembly, having a reduced diameter with respect to the motor assembly 16, to allow accommodating, in each, an elastic module 130, as shown in FIGS. 3 or 4.

In the various embodiments, the casing partially or fully covers the first and the second mechanical vibration filter module and the elastic module.

In a variant not shown, the electromechanical actuator 11 can be inserted in a rail, in particular of square or rectangular section, which can be opened at one or at its two ends, in the assembled configuration of the device 3. By moreover, the electromechanical actuator 11 can be configured to drive a drive shaft on which are wound displacement and / or orientation strips for the blades of the screen 2.

Throughout this document, by “surface oriented along an axis” or by “face oriented along an axis”, is meant a surface or a face perpendicular to this axis, that is to say a face whose vector normal is parallel to this axis.

Claims (1)

Claims [Claim 1] Electromechanical actuator (11) for closing, concealment or sun protection installation (6), the electromechanical actuator (11) comprising, inserted at least partially into a casing (17) of the electromechanical actuator (11): - an engine assembly (16), comprising an electric motor (261) and a reduction gear (265), - an output shaft (20), and - at least a first mechanical vibration filter module (33), the electromechanical actuator (11) extending along a longitudinal axis (X), the first mechanical vibration filter module (33, 133) being arranged along of the longitudinal axis (X) and comprising a rigid transmission coupling, having at least a first degree of freedom perpendicular to the longitudinal axis (X) of the electromechanical actuator (11), allowing movement of the motor assembly (16) along a plane perpendicular to the longitudinal axis (X) of the electromechanical actuator (11), the first mechanical vibration filter module (33) comprising: - an entrance room (33a), - an outlet part (33b), - an intermediate part (33i), - a first slide connection (116), along a first axis (Y 1), between the intermediate piece and the entry piece, - a second sliding link (117), along a second axis (Zl), between the intermediate part and the output part, the first axis (Yl) and the second axis (Zl) being perpendicular to the longitudinal axis (X) the electromechanical actuator (11), - first elements (90a, 91a, 9li, 93a, 93i) for limiting displacements, in translation along at least one of the first axis (Yl) and the longitudinal axis (X), of the entry piece relative to the intermediate part and / or the second elements (90b, 92b, 92i, 94b, 94i) for limiting movement, in translation along at least one of the second axis (Zl) and the longitudinal axis (X) , of the outlet part relative to the intermediate part. [Claim 2] Electromechanical actuator (11) according to the preceding claim, characterized in that the first displacement limitation elements include: - first tongues (90a) forming part of the entry piece or of the intermediate piece, the first tongues extending mainly along the longitudinal axis (X), and - abutment surfaces (9 li, 93i) forming respectively part of the intermediate piece or the entry piece, in particular intended to cooperate by contact with the first tongues, in particular intended to cooperate by contact with first faces (91a , 93a) of the first tabs. [Claim 3] Electromechanical actuator (11) according to one of the preceding claims, characterized in that the second displacement limitation elements include: - second tongues (90b) forming part of the outlet part or of the intermediate part, the second tongues extending mainly along the longitudinal axis (X), and - abutment surfaces (92i, 94i) respectively forming part of the intermediate piece or the output piece, in particular intended to cooperate by contact with the second tongues, in particular intended to cooperate by contact with second faces (92b, 94b ) second tabs. [Claim 4] Electromechanical actuator (11) according to one of claims 2 and 3, characterized in that each first tongue comprises at least a first flexible part (95a), in particular a first flexible arm (95a) or two first flexible arms (95a) and / or in that each second tongue comprises at least a second flexible part (95b), in particular a second flexible arm (95b) or two second flexible arms (95b). [Claim 5] Electromechanical actuator (11) according to the preceding claim, characterized in that each first tongue comprises at least one first inclined end face (96a) and / or in that each second tongue comprises at least one second inclined end face ( 96a). [Claim 6] Electromechanical actuator (11) according to one of the preceding claims, characterized in that the electromechanical actuator further comprises at least one elastic module (130) limiting the displacement of the motor assembly (16) along the plane perpendicular to the longitudinal axis (X) of the electromechanical actuator (11). [Claim 7] Electromechanical actuator (11) according to the preceding claim, characterized in that the elastic module (130) comprises a ring or a ring made of flexible material, in particular elastomeric and / or viscoelastic material, arranged around the motor assembly (16). [Claim 8] Electromechanical actuator (11) according to the preceding claim, characterized in that the elastic module comprises bosses forming its surface or surfaces in contact with the casing (17) and / or the motor assembly (16). [Claim 9] Electromechanical actuator (11) according to one of the preceding claims, characterized in that the input part (33a) of the first mechanical vibration filter module is mechanically linked directly or indirectly to a torque support (21), in particular linked to the casing (17), the outlet part (33b) is mechanically linked directly or indirectly to the engine assembly (16). [Claim 10] Electromechanical actuator (11) according to one of the preceding claims, characterized in that it comprises a second mechanical vibration filter module (133), the first and second mechanical vibration filter modules (33, 133) being arranged on either side of the engine assembly (16) along the longitudinal axis (X). [Claim 11] Electromechanical actuator (11) according to the preceding claim, characterized in that the second mechanical vibration filter module (133) comprises - an input part (133a), - an output part (133b), - an intermediate part ( 133i), - a first slide connection (116), along a first axis (Y 1), between the intermediate piece and the entry piece, - a second sliding link (117), along a second axis (Zl), between the intermediate part and the output part, the first axis (Yl) and the second axis (Zl) being perpendicular to the longitudinal axis (X) the electromechanical actuator (11), - first elements (90a, 91a, 9li, 93a, 93i) for limiting displacements, in translation along at least one of the first axis (Yl) and the longitudinal axis (X), of the entry piece relative to the intermediate piece and / or second elements (90b, 92b, 92i, 94b, 94i) for limiting movement, in translation along at least one of the first axis (Y 1) and the longitudinal axis (X ), of the outlet part relative to the intermediate part. [Claim 12] Electromechanical actuator according to one of the preceding claims, further comprising a vibration absorption module (130) and a torque support (21), inserted at least partially into the casing (17), - the input part (33a) of the first mechanical vibration filter module (33) being mechanically linked directly or indirectly to the casing (17), - The output part (33b) of the first mechanical vibration filter module (33) being mechanically linked to the torque support (21), the mechanical vibration filter module (33) ensuring the mechanical connection between the housing (17) and the torque support rotating around the longitudinal axis (X) of the actuator, the vibration absorption module mechanically connecting the casing (17) to the torque support (21) in translation perpendicular to the longitudinal axis (X) of the actuator by allowing a degree of freedom in rotation between the casing (17) and the torque support (21) around the longitudinal axis (X). [Claim 13] Actuator according to the preceding claim, characterized in that the vibration absorption module (130) comprises a first ring (131) of flexible material, in particular of elastomeric and / or viscoelastic material, arranged around a part (210) of the torque support (21) and a second ring (132) of rigid material, arranged around the first ring (131) or inserted in the first ring (131). [Claim 14] Home automation system for closing, masking or sun protection (6) comprising a screen (2), a winding tube (4) and an electromechanical actuator (11) according to any one of the preceding claims, the screen (2) being rollable on the winding tube (4) driven in rotation by the electromechanical actuator (11).