Drive assembly for a device to cover an opening in a room of a building or for sun protection.

Abstract

The invention relates to a drive assembly for a blinding device (Tab) for an opening in a room of a building or for solar protection, the drive assembly comprising a motor (Mot), an electronic module (Car) comprising a radio module for receiving or transmitting radio waves for controlling the motor and means for controlling the rotation of the motor according to received radio waves, the drive assembly being contained in a first tube (Tum), a reducer (Red) comprising a drive wheel being disposed at a first end of the first tube and enabling the rotation of a second metallic tube (Tue) intended to contain the first tube, a fixing element (Tet) of the drive assembly being disposed at a second end of the first tube, the fixing element being made of a material permeable to radio waves, the fixing element enabling the first tube to be secured to a chassis support (Suc),in which the mounting element includes an antenna (Ant) connected to the radio module. Figure to be published with the abbreviation: Fig. 1,

Description

Title of the invention: Drive assembly for a device for concealing an opening in a room of a building or for solar protection. Technical field

[0001] The present invention relates to the field of systems for concealing an opening in a room of a building or for solar protection controlled by radio waves. STATE OF PRIOR ART

[0002] The control of devices for concealing an opening in a room of a building or for solar protection by radio waves requires the use of an antenna which is associated with a radio module included in a drive assembly for the devices for concealing an opening in a room of a building or for solar protection.

[0003] Conventionally, the drive assembly of a device for concealing an opening in a room of a building or for solar protection is placed in a winding tube of the concealing device or the solar protection device.

[0004] The winding tube is conventionally made of a material that very strongly attenuates, or even screens, radio waves.

[0005] It is then necessary to arrange the radio antenna outside the winding tube.

[0006] This arrangement generates a certain number of problems. For example, it is necessary to achieve dust and liquid tightness during design. It is also necessary to provide automation for the assembly of the antenna cable for manufacturing. Finally, this solution increases the complexity of the installation due to the increase in space requirement linked to the presence of the antenna. Statement of the invention

[0007] The present invention aims to solve the aforementioned problems by proposing a drive assembly for a device for concealing an opening of a room of a building or for solar protection, the drive assembly comprising a motor, an electronic module comprising a radio module for receiving or transmitting radio waves for controlling the motor and means for controlling the rotation of the motor according to received radio waves, the drive assembly being included in a first tube, a reducer comprising a drive wheel being arranged at a first end of the first tube and allowing the rotation of a second metal tube intended to comprise the first tube, a fixing element of the drive assembly being arranged at a second end of the first tube, the element of fixing being made of a material permeable to radio waves, the fixing element making it possible to secure the first tube to a chassis support, characterized in that the fixing element comprises an antenna connected to the radio module making it possible to receive or transmit radio waves.

[0008] Thus, the present invention simplifies the manufacture of the drive assembly and its installation while guaranteeing sealing against dust and liquids.

[0009] According to a particular embodiment of the invention, the antenna is arranged at a distance between the second end of the first tube of between 30 and 70% of the distance separating the second end of the first tube from the end of the fixing element intended to be in contact with the chassis support.

[0010] Thus, the present invention allows optimal positioning of the antenna with respect to metal structures and best avoids elements made of a material that very strongly attenuates, or even screens, radio waves.

[0011] According to a particular embodiment of the invention, the antenna is arranged equidistant from the second end of the first tube and from the end of the fixing element intended to be in contact with the chassis support.

[0012] Thus, the present invention allows optimal positioning of the antenna with respect to metallic structures and best avoids elements made of a material that very strongly attenuates or even screens radio waves.

[0013] According to a particular embodiment of the invention, the antenna is arranged in a recess on the periphery of the fixing element.

[0014] Thus, the present invention provides mechanical protection of the antenna.

[0015] According to a particular embodiment of the invention, the antenna is connected to the radio module by a coaxial cable, the coaxial cable being between the radio module and the recess.

[0016] Thus, the coaxial cable allows the antenna to be placed in an optimal position.

[0017] According to a particular embodiment of the invention, the fixing element comprises a connector for supplying electrical energy to the electronic module and the motor.

[0018] According to a particular embodiment of the invention, the motor is a brushless direct current motor.

[0019] According to a particular embodiment of the invention, the motor is arranged between the electronic module and the drive reducer.

[0020] According to a particular embodiment of the invention, the support of the chassis is metallic.

[0021] According to a particular embodiment of the invention, the antenna arranged in the recess is re covered with electrical insulation.

[0022] Thus, the present invention makes it possible to reinforce the protection against electrical and mechanical shocks and to ensure the sealing against dust and liquids of the elements arranged inside the first tube.

[0023] According to a particular embodiment of the invention, the electrical insulator is for example a resin-type coating, permeable to radio waves.

[0024] The invention also relates to a system for concealing an opening of a room of a building or for solar protection controlled by radio waves, characterized in that it comprises a drive assembly of a device for concealing an opening of a room of a building or for solar protection according to the invention. Brief description of the drawings

[0025] The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of at least one exemplary embodiment, said description being made in relation to the attached drawings, among which:

[0026] [Fig-1] schematically illustrates an example of a system for concealing a opening of a room of a building or solar protection in which the present invention is implemented;

[0027] [Fig.2] schematically illustrates an example of a first tube in which a drive assembly of a device for concealing an opening of a room of a building or for solar protection is included, the first tube being included in a second tube;

[0028] [Fig.3] schematically illustrates an example of a fixing element of the assembly training according to the present invention;

[0029] [Fig.4] schematically illustrates an example of the fixing element of the assembly drive and an electronic module including a radio module.

[0030] DETAILED DESCRIPTION OF EMBODIMENTS

[0031] [Fig.l] schematically illustrates an example of a system for concealing an opening of a room of a building or for solar protection in which the present invention is implemented.

[0032] The system for concealing an opening in a room of a building or for solar protection is mounted on a Bat frame, for example a wall surrounding an opening, window or door, equipped with a Tab apron belonging to the closing, concealing or solar protection system, in particular a roller shutter, a roller blind, a pleated or slatted blind. The occultation system comprises a drive assembly included in a first tube Tum itself included in a second tube, called the drive tube Tue.

[0033] The Tab screen or apron is wound onto the Tue winding tube, itself driven by a drive wheel. Thus, the Tab screen is movable between a wound up high position and a unwound down position.

[0034] The drive assembly comprises a Mot motor, an electronic module Car comprising a radio module for receiving or transmitting radio waves for controlling the motor and means for controlling the rotation of the motor according to received radio waves.

[0035] The drive assembly comprises a Red reducer comprising a drive wheel disposed at a first end of the first tube and allowing the second metal tube to be rotated.

[0036] The drive assembly comprises a fixing element Tet at a second end of the first tube, the fixing element is made of a material permeable to radio waves. The fixing element and makes it possible to secure the first tube to a chassis support Suc.

[0037] The system for concealing an opening in a room of a building or for solar protection further comprises a box or chest Cof in which the winding tube Tue and the drive assembly are housed.

[0038] The trunk is for example made up of metal elements such as Fia flanges intended to secure the first tube to the Cof trunk.

[0039] The second tube has a pivot Piv associating it on one side with the trunk Cof and is associated on the other side with the trunk by means of the first tube and the fixing element Tet to a chassis support Suc.

[0040] The Suc chassis support is metallic or made of plastic.

[0041] The Tet fixing element is made of a material permeable to radio waves, for example example in plastic material.

[0042] The Tet fixing element is assembled with the Suc chassis support. The Tet fixing element is for example shaped to clip onto the Suc chassis support.

[0043] The Suc chassis support is metallic or made of plastic.

[0044] The Tet fixing element is also called the motor head or torque support.

[0045] According to the invention, the fixing element Tet comprises an antenna Ant which is connected to the radio module.

[0046] The Ant antenna is for example connected to the radio module by a coaxial cable, the coaxial cable being between the radio module and the recess. The coaxial cable is for example connected to the radio module using a coaxial connector.

[0047] According to a particular example, the antenna is arranged at a distance between the second end of the first tube of between 30 and 70% of the distance separating the second end of the first tube from the end of the fixing element intended to be in contact with the chassis support.

[0048] For example, the antenna is arranged equidistant from the second end of the first tube and from the end of the fixing element intended to be in contact with the chassis support.

[0049] The Mot motor is for example a brushless direct current motor.

[0050] [Fig.2] schematically illustrates an example of a first tube in which a drive assembly of a device for concealing an opening of a room of a building or for solar protection is included, the first tube being intended to be included in a second tube.

[0051] The first tube Tum is for example metallic, the second tube Tue is for example metallic and the antenna is arranged in a channel or recess of the fixing element Tet equidistant from the end of the second tube and the support of the chassis Suc.

[0052] The antenna Ant is arranged in a recess on the periphery of the fixing element.

[0053] [Fig. 3] schematically illustrates an example of a fastening element of the drive assembly according to the present invention.

[0054] The fixing element Tet comprises a recess Ev in which the antenna Ant is placed.

[0055] According to a particular embodiment of the invention, the antenna Ant arranged in the recess is covered with an electrical insulator such as, for example, a resin-type coating permeable to radio waves.

[0056] [Fig.4] schematically illustrates an example of the fixing element of the drive assembly and an electronic module comprising a radio module.

[0057] The fixing element Tet comprises an antenna Ant which is connected to the radio module by a coaxial cable Coa, the coaxial cable Coa being between the radio module Rad placed on the electronic module Car and the recess.

[0058] The Ant antenna is for example sized to operate in the ISM type S band around the frequency 2.45 GHz and has a length that is a multiple of a quarter wavelength. The Ant antenna has a length that can range from 3 to 9 cm.

[0059] The fixing element Tet comprises a connector Con for supplying electrical energy to the electronic module and the motor.

Claims

Claims

1. Drive assembly for a device (Tab) for concealing an opening in a room of a building or for solar protection, the drive assembly comprising a motor (Mot), an electronic module (Car) comprising a radio module for receiving or transmitting radio waves for controlling the motor and means for controlling the rotation of the motor according to received radio waves, the drive assembly being included in a first tube (Tum), a reducer (Red) comprising a drive wheel being arranged at a first end of the first tube and allowing the rotation of a second metal tube (Tue) intended to comprise the first tube, a fixing element (Tet) for the drive assembly being arranged at a second end of the first tube, the fixing element being made of a material permeable to radio waves, the fixing element making it possible to secure the first tube to a chassis support (Suc),characterized in that the fixing element comprises an antenna (Ant) connected to the radio module allowing radio waves to be received or transmitted.,

2. Drive assembly according to claim 1, characterized in that the antenna is arranged at a distance between the second end of the first tube of between 30 and 70% of the distance separating the second end of the first tube from the end of the fixing element intended to be in contact with the chassis support.

3. Drive assembly according to claim 1 or 2, characterized in that the antenna is arranged equidistant from the second end of the first tube and from the end of the fixing element intended to be in contact with the chassis support.

4. Drive assembly according to any one of claims 1 to 3, characterized in that the antenna is arranged in a recess on the periphery of the fixing element.

5. Drive assembly according to claim 4, characterized in that the antenna is connected to the radio module by a coaxial cable, the coaxial cable being between the radio module and the recess.

6. Drive assembly according to any one of claims 1 to 5, characterized in that the fixing element comprises a connector for supplying electrical energy to the electronic module and the motor.

7. A drive assembly according to any one of claims 1 to 5, characterized in that the motor is a brushless direct current motor.

8. Drive assembly according to any one of claims 1 to 7, characterized in that the motor is arranged between the electronic module and the reducer comprising the drive wheel.

9. Drive assembly according to any one of claims 1 to 7, characterized in that the chassis support is metallic.

10. A drive assembly according to any one of claims 4 to 9, characterized in that the antenna arranged in the recess is covered with an electrical insulator.

11. System for concealing an opening of a room of a building or for solar protection controlled by radio waves, characterized in that it comprises a drive assembly of a device for concealing an opening of a room of a building or for solar protection according to any one of claims 1 to 10.

Images