WO2022229722A1

WO2022229722A1 - Rotary control member, control assembly and apparatus comprising same

Info

Publication number: WO2022229722A1
Application number: PCT/IB2022/052494
Authority: WO
Inventors: Amaury Malhere; Romain Canivenc; Chanchao PUAGSEESOOK; Antoine Morel
Original assignee: Groupe Atlantic Synergy
Priority date: 2021-04-27
Filing date: 2022-03-18
Publication date: 2022-11-03
Also published as: FR3122282A1; FR3122282B1

Abstract

The invention relates to a rotary control member (1) configured to control the control rod (2a) of a controlled device (2) housed inside an apparatus, the rotary control member (1) comprising an active part (5) powered by a member for powering and controlling the active part, a knob base (7) and a knob cover (8), and an abutment assembly capable of limiting the range of rotation of the knob, the knob cover (8) comprising first assembly elements (8a) and the knob base (7) comprising second assembly elements (7a) for attaching the knob cover (8) to the knob base (7) so as to define a central receiving space (10) in the knob (9) in which the active part (5) connected to its power supply is housed, the knob base (7) being configured to be functionally attached to the control rod (2a) of the controlled device (2) and capable of rotating said control rod (2a) in order to control the controlled device (2).

Description

Rotary control member, control assembly and device comprising it

The present invention relates to the technical field of human-machine interfaces and more particularly relates to a rotary control member with an integrated active part.

The design of devices leaves less and less room for control and display components and the need for more compact human-machine interfaces is growing. Technical solutions are proposed in the prior art to reduce the size of human-machine interfaces, such as the integration of display elements directly into a control device. For example, US patent application US2008023309 A1 discloses a button comprising an integrated screen. This solution makes it possible to reduce the size of a man-machine interface, however it requires the use of an electronic control device which is more expensive than a mechanical system and the use of contacting parts and gears. which must be made of materials limiting friction and resistant to shocks, also expensive, to guarantee a good life of the button. The solutions proposed in the prior art for compact man-machine interfaces therefore provide devices that are significantly more expensive than conventional devices, in which the man-machine interface and the control member are separate.

Therefore, the prior art solutions proposed for compact human-machine interfaces with integrated display still have drawbacks and improvements of these systems are possible.

WO2013175441 describes a control device according to the state of the art.

The present invention aims to provide technical solutions to provide a compact human-machine interface, composed of few elements, with an integrated active part at a cost similar to that of a conventional solution.

Thus, the subject of the present invention is a rotary control member configured to control the control rod of a controlled device integrated within a device, the rotary control member comprising an active part; an active part supply and control unit; a button base; and a button cover attached to the button base to form a button, the button cover being capable of driving the button base in rotation upon actuation by a user; the rotary control member being characterized in that the rotary control member further comprises a stop assembly able to limit a range of rotation of the button; the button cover comprises first joining elements and the button base comprises corresponding second joining elements such that, by cooperation of the first and second joining elements, the button cover is fixed to the base of button so as to define a central reception space in the button between the button cover and the button base, the active part being received in the reception space and connected to the active part supply and control member by at least one opening configured to allow the active part supply and control member formed in the button base to pass; and the button base is configured to be operatively fixed to the control rod of the controlled device and to be adapted to drive said control rod in rotation to control the controlled device.

By active part is meant a device or circuit supplied with current, for example but not limited to, a lamp, a printed circuit board, a display.

The design of the control member according to the present invention provides a button which is assembled from few parts, which makes it possible to control, via the control rod, a controlled device received within a device , while making it possible to obtain a reception space in the button in order to receive an active part operatively connected to an active part supply and control member. This design thus allows the rotary control device to have additional functions compared to a conventional solution of the control device type alone or control device with a separate man-machine interface, while being compact.

It will be understood that the stop assembly makes it possible to limit the range of rotation of the knob in order to avoid deterioration, in use, of the power supply and control member of the active part due to excessive rotation of the knob. Preferably, the stopper assembly limits the knob rotation range to about 210°, with other knob rotation ranges also being contemplated within the scope of the present invention.

In one embodiment, the rotary control member is characterized in that it comprises a man-machine interface support part configured to be able to be secured to the body of the device, the support part man-machine interface comprising an opening configured to allow the control rod of the controlled device to pass and at least one opening configured to allow the active part supply and control member to pass, at least one of the openings of the button base being in the form of an arcuate cutout configured to allow the active part supply and control member to pass and to allow the first fixing elements carried by the interface support part to pass man-machine, the active part being fixed to the man-machine interface support part by means of second fixing elements engaged with the first fixing elements.

In use, this configuration allows the active part, received in the button, to remain fixed relative to the device regardless of the rotational movement of the button.

In one embodiment, the rotary control member is characterized in that the first fixing elements form the abutment assembly.

An advantageous combination of the first fixing elements and the abutment assembly makes it possible to limit the number of elements within the button and to reduce the quantity of material necessary for manufacture.

In one embodiment, the rotary actuator is characterized in that at least one of the openings of the button base is in the form of an opening located at a central part of the button base and is configured to allow the active part supply and control member to pass, and in that the button base comprises first fixing elements, the active part being fixed to the button base by means of second fasteners engaged with the first fasteners and active part being rotatable with the button base.

This embodiment of the invention is a variant which makes it possible to reduce the zones in which, in use, parts of the rotary control member are in motion with respect to each other. Potential friction between moving parts is therefore reduced and the life of the control device is extended. In addition, this embodiment allows a diversification of the user experience, by allowing for example to rotate the active part with the button relative to a fixed element inside the button. Thus, if the active part is a light, a fixed cover can be provided which will obscure the light to a greater or lesser extent depending on the rotational position of the button.

Preferably, the man-machine interface support part comprises openings formed in correspondence of the openings of the button base to facilitate the passage of the active part supply and control member. This solution is only one possibility to allow passage of the active part power supply and control device. It is also possible to envisage the use of one or more grooves, arranged on or in the control rod of the controlled device, in which the active part supply and control member passes, in this case the length of the active part supply and control member is chosen to allow rotation of the button throughout the range of rotation authorized by the stop assembly.

In one embodiment, the rotary control member is characterized in that the first and second fixing elements, the button base, the active part and the button cover are dimensioned so as to form a first gap between the button base and the first fixing elements, a second gap between the button base and the active part, a third gap between the active part and the button cover and a fourth gap between the fixing elements and the button cover, so that in use the button base and the button cover are not in contact with the active part or the fixing elements.

In one embodiment, the rotary controller is characterized in that the button base is configured to be attached to the control rod of the controlled device so as to form a gap between the button and the support part of man-machine interface, so that in use the button and the man-machine interface support part are not in contact.

The design of the control member, so as to form gaps between the parts in relative movement, makes it possible to prevent the appearance of friction during use of the rotary control member, in order to lengthen the life of life.

This design also allows a wider choice in the materials used for the manufacture of the rotary actuator. Indeed, in this case, the use of materials resistant to friction, which are more expensive, is not essential to guarantee a good life of the rotary control member.

In one embodiment, the rotary control member is characterized in that the active part is one of a lamp, a display, a printed circuit board. In the case where the active part is a display or a printed circuit board, the active part power supply and control device is an electric cable, making it possible to exchange data with another entity and to supply the power supply electric.

In a particular embodiment, the rotary control member is a printed circuit board which carries at least one element among: a display device, a light indicator, an audible indicator, a mechanical sensor and a touch sensor; the display device preferably being a digital display.

The printed circuit board received in the button allows power and signal control to provide many additional functions, including direct communication of sound or light information to a user, but also reception of information external to the using sensors.

The rotary control member according to the present invention thus makes it possible to improve the user experience compared to a conventional solution.

In one embodiment, the rotary control member is characterized in that the human-machine interface support part comprises a projecting part extending, in use, around the control rod towards the base of button to form a collar, a central portion of the button base extending, in use, inside the collar of the human-machine interface support part, without contacting the support part Human Machine Interface.

In one embodiment, the rotary controller is characterized in that the button base comprises a circular groove disposed circumferentially on a surface on the side of the human-machine interface support part and the support part. a human-machine interface comprises a circular projection extending, in use, towards the button base complementary to the groove of the button base,

the protrusion of the human-machine interface support part fitting, in use, into the groove of the button base without coming into contact with the button base.

It will be understood that the configurations disclosed above make it possible, by assembling the various parts, to prevent the introduction of liquids and particles, by projection, into the rotary control member to allow the index to be obtained IP24 protection for the rotary control device. Additional parts can be added to the assembly to allow an even greater IP protection index (pressurized liquid jet).

The invention also relates to a control assembly comprising a control member according to the present invention and a controlled device comprising a control rod, characterized in that the button base is configured to be plugged onto the control rod and is suitable to control in rotation the controlled device via the control rod.

The controlled device is preferably fixed to the man-machine interface support part by means of screws, but other modes of fixing can be envisaged within the scope of the present invention.

In one embodiment, the control assembly is a temperature regulation assembly, the controlled device being a mechanical thermostat.

The general design of the rotary control device allows it to be used in combination with a mechanical thermostat, which is less expensive than an electronic control device.

The invention also relates to an apparatus comprising a control assembly according to the present invention.

To better illustrate the object of the present invention, a preferred embodiment will be described below, with reference to the accompanying drawings, in which:

is an exploded view showing the body of an apparatus, a controlled device and the rotary control member according to the preferred embodiment of the invention.

is a perspective view of the human-machine interface support portion of the rotary controller of the , attached to the body of the device.

is a sectional view, in the assembled state, of the rotary control member, of the controlled device and of the body of the device, shown in .

is a rear perspective view of the rotary controller button base of the .

If we first refer to Figures 1 to 3, we can see that there is shown a rotary control member 1 according to a preferred embodiment of the present invention and a controlled device 2, received in a device of which only part of the body 3 has been represented for greater clarity.

The rotary control member 1 comprises few parts, namely: a man-machine interface support part 4, an active part, in the embodiment shown a printed circuit board 5, a power supply member and active part control, in the embodiment shown a printed circuit board electrical cable 6, a button base 7 and a button cover 8. Other active parts, such as a light, can also be envisaged in the context of the present invention, the active part supply and control member then being adapted accordingly.

The controlled device 2 comprises a control rod 2a, a housing 2b and a fixing system 2c. The controlled device 2 and the apparatus are of already known types and will therefore not be described in detail below.

In the preferred embodiment of the invention, the controlled device 2 is a mechanical thermostat but the invention can also be implemented with any controlled device, controlled using a control rod 2a.

The device can for example be a potentiometer, a rotary encoder, a switch, a selector.

The housing 2b of the controlled device 2 is fixed to the man-machine interface support part 4 thanks to the fixing system 2c and to complementary fixing elements. According to the embodiment shown in the Figures, the controlled device 2 is fixed to the man-machine interface support part 4 using screws 2d passing through through holes 4a formed on an internal surface 4b of the part of 4 man-machine interface support to engage with 2c fastening system,

but any other technical solution making it possible to fix the controlled device 2 to the man-machine interface support part 4 can be envisaged, for example the use of elements allowing elastic interlocking.

The man-machine interface support part 4 is configured to be secured to the body of the device 3. According to the embodiment shown in the Figures, the man-machine interface support part 4 and the body of the device 3 are formed in one piece. It will be understood that other configurations are also possible to make the man-machine interface support part 4 integral with the body of the device 3, for example by elastic fitting or by gluing.

Additionally, in the preferred embodiment, the human-machine interface support portion 4 is recessed inwardly relative to a distal surface 3a of the body of the device 3, such that at the mounted state, a distal surface 1a of the control member 1 is aligned with the distal surface 3a of the body of the device 3 and does not protrude from the body of the device 3. It will be understood that this arrangement allows a better compactness of the device on which the control member 1 is mounted, but that, as a variant, the man-machine interface support part 4 could be arranged differently with respect to the distal surface 3a of the body of the device, for example be aligned with the distal surface 3a. This arrangement also allows better protection of the control member 1 in the packaging of the product during transport.

The button cover 8 comprises first assembly elements 8a (shown by transparency on the ) and the button base 7 comprises second assembly elements 7a corresponding to the first assembly elements 8a, such that by cooperation of the first 8a and second 7a assembly elements, the button cover 8 is fixed to the button base 7 so as to form a button 9. The asymmetrical position of the

assembly elements

7a and 8a makes it possible to create a corrector avoiding errors when assembling the elements. The

assembly elements

7a and 8a also make it possible to prevent the separation of the button base 7 and the button cover 8 during traction or impact. According to the preferred embodiment, the first assembly elements 8a consist of male elastic fitting elements (lugs) and the second assembly elements 7a consist of female elastic fitting elements (notches), respectively disposed on an inner circumference of the button cover 8 and on an outer circumference of the button base 7. It will be understood that the arrangement of said male and female elements can be reversed or that a combination of male and female elements can be used for the first 8a and second 7a assembly elements, as a variant of the preferred embodiment of the invention. Other technical solutions could also be implemented, thus the button cover 8 and the button base 7 could for example be glued or even screwed together. Button cover 8 and button base 7 could also be welded. The structure described in the figures, as well as the solution by screwing, allow better maintenance and better repairability, which the welded and/or glued solutions do not allow.

After assembly, the button cover 8 is thus able to drive the button base 7 in rotation when a user presses the button cover 8.

The assembly of the button cover 8 and the button base 7 also makes it possible to form a central receiving space 10 in the button 9 between the button cover 8 and the button base 7. The printed circuit board 5 is received , in the assembled state, in the central receiving space 10.

The arrangement of the printed circuit board 5 in the central reception space 10 allows power supply and signal control, which allow the rotary control member 1 to provide additional functions compared to a conventional solution, of the type rotary handle alone or separate rotary handle and human machine interface and improve the user experience, while being compact.

Additional functions can, for example, be direct communication of sound or light information to the user, but also reception of external information using sensors.

In the embodiment represented in the Figures, the printed circuit board 5 carries a display device 5c, but it will be understood that many other elements can be used, such as for example a luminous indicator, an audible indicator, a mechanical sensor or a touch sensor.

In order to allow the fixing of the printed circuit board 5, the man-machine interface support part 4 carries first fixing elements 4c which protrude from the inner surface 4b of the human interface support part -machine 4. The printed circuit board 5 is fixed to the man-machine interface support part 4 by means of second fixing elements 5a engaged with the first fixing elements 4c.

In the preferred embodiment of the invention, the first attachment elements 4c are in the form of cylindrical projections extending from the inner surface 4b of the man-machine interface support part 4, and the second elements fasteners 5a are in the form of screws configured to pass through through holes 5b, formed in the printed circuit board 5 in correspondence of the first fasteners 4c, and to form by screwing internal threads 4d at the distal end first fixing elements 4c. More generally, those skilled in the art will take into account the aspects of the geometry dedicated to the positioning of the printed circuit board 5 to facilitate assembly and ensure final positioning adapted to the functions sought.

This configuration allows the printed circuit board 5 to remain fixed relative to the body of the device 3 regardless of the rotational movement of the button 9. It will be understood that the first 4c and second 5a fixing elements can take other forms allowing their engagement and that the invention is not limited to this technical solution. Alternatives such as clips, riveting, welding, crimping can thus also be considered within the scope of the present invention.

The button base 7 includes an arc-shaped through opening 7b disposed over a portion of its circumference. The arc-shaped through opening 7b is configured to allow passage of the first fasteners 4c and the printed circuit board electrical cable 6 to the printed circuit board 5.

The man-machine interface support part 4 also comprises a first through opening 4e formed in the internal surface 4b in correspondence of the through opening in the form of an arc 7b, and configured to allow the passage of the electrical sheet and the connectors of the printed circuit board cable 6. The electrical printed circuit card cable 6 can thus extend from the printed circuit card 5 to the inside of the body of the apparatus 3 through the through opening arc-shaped 7b, of the button base 7, and through the first through opening 4e, of the man-machine interface support part 4.

In order to prevent deterioration, in use, of the printed circuit board electrical cable 6 due to excessive rotation of the button 9 and in particular of the button base 7, the rotary control member 1 comprises a stop assembly configured to limit a range of rotation of button 9. In the embodiment shown in the Figures, the abutment assembly is formed by the first fixing elements 4c arranged on the man-machine interface support part 4. The first fixing elements attachment 4c and the arc-shaped through opening 7b of the button base 7 are thus configured to allow rotation of the button 9 by approximately 210°.

The advantageous combination of the first fixing elements 4c and of the abutment assembly makes it possible to limit the number of elements within the rotary control member 1 and to reduce the quantity of material necessary for manufacture. It will however be understood that the stop assembly can take other forms configured to limit the rotation of the button 9 to a desired range.

If we now also refer to the , it can be seen that the button base 7 comprises a recess 7c formed in a central part 7d configured to engage with the control rod 2a of the controlled device 2. In the preferred embodiment, the button base comprises elements reinforcement 7g of the rib type to ensure good mechanical strength of the button base 7 in use. The man-machine interface support part 4 also comprises a second through opening 4f, formed in the internal surface 4b. The second through opening 4f is configured to allow passage of the control rod 2a of the controlled device 2 and the passage of the central part 7d of the button base 7 in order to allow the control rod 2a to be connected in a functional manner. and the button base 7. The button base 7 is forced down on the control rod 2a until it stops. The deformation of the plastic on the control rod 2a provides very good mechanical tensile strength. Other solutions, for example the gluing of the button base 7 on the control rod 2a can also be envisaged within the scope of the present invention. In the embodiment shown, the control rod 2a and the recess 7c of the button base 7 both comprise a flat, the flats allowing the control rod 2a to be driven in rotation by the button base 7 and therefore by the button 9 when the latter is rotated by a user, the flats also constituting polarizers making it possible to have the button base 7 in the correct position. Control member 1 is configured to control controlled device 2 via control rod 2a.

It will be understood that other technical solutions, for example screwing, can also be used to allow the control rod 2a to be driven in rotation by the button base 7, such as for example the provision of grooves and ribs on the rod control 2a and in the recess 7c of the central part 7d. It will be noted that the shape of the control rod 2a is usually standardized and depends on the technological choice (encoder, variator, methane thermostat, etc.).

In order to extend the life of the rotary control member 1 according to the preferred embodiment of the invention, gaps 11a to 11e are formed between the moving elements in order to prevent the appearance of friction.

Thus, the first 4c and second 5a fixing elements, the button base 7, the printed circuit board 5 and the button cover 8 are dimensioned so as to form a first gap 11a between the button base 7 and the first elements. 4c, a second gap 11b between the button base 7 and the printed circuit board 5, a third gap 11c between the printed circuit board 5 and the button cover 8, a fourth gap 11d between the fixing

elements

4c , 5a and the button cover 8, so that in use the button base 7 and the button cover 8 are not in contact with the printed circuit board 5 or the fixing

elements

4c, 5a. With the same objective, the button base 7 is configured to be fixed to the control rod 2a of the controlled device 2 so as to form a fifth gap 11e between the button 9 and the man-machine interface support part 4, so that in use the button 9 and the man-machine interface support part 4 are not in contact.

It will be understood that this design makes it possible to avoid the generation of friction between the moving parts but that, according to variants of the preferred embodiment, certain components in relative motion could be in contact.

Moreover, according to the preferred embodiment of the invention, the rotary control member 1 also adopts a design which makes it possible to prevent the introduction of liquids and particles, by projection, into the rotary control member 1 to allow obtaining the IP24 degree of protection for the rotary control device 1.

For this, the man-machine interface support part 4 comprises a protruding part extending around the second through-opening 4f and, in the assembled state, towards the button base 7 to form a neck 4g. Thus, in the mounted state, the central part 7d of the button base 7 extends inside the neck 4g of the man-machine interface support part 4, without coming into contact with the support part man-machine interface 4.

In addition, the button base 7 includes a circular groove 7e circumferentially disposed on a surface 7f on the man-machine interface support part 4 side. The man-machine interface support part 4 also includes a circular protrusion 4h extending, in the mounted state, towards the button base 7 complementary to the groove 7e of the button base 7. And in use, the projection 4h of the man-machine interface support part 4 s 'inserts into the 7th groove of the button base 7, without coming into contact with the button base 7.

In order to improve the protection against the introduction of liquids and particles by projection, in the embodiment represented in the Figures, the button base 7 and the button cover 8 are assembled such that a proximal surface 8b of the button cover 8 is arranged substantially in the same plane as the surface 7f on the man-machine interface support part 4 side. respectively around the through holes 4a and around the first through opening 4e, formed in the inner surface 4b of the man-machine interface support part 4. The screws 2d and the projecting parts 4i formed around the through holes 4a are correspondingly formed.

It will be understood that, according to variants of the preferred embodiment, the rotary control member 1 could not include certain elements making it possible to obtain the IP24 protection index.

We will now describe the mounting of the rotary control member 1 and of the controlled device 2 on the body of the device 3.

Initially, the man-machine interface support part 4 is secured to the body of the device 3. In the preferred embodiment, the man-machine interface support part 4 is formed of a alone with the body of the device 3. The man-machine interface is mounted by fitting into a location provided for this purpose provided on the body of the device 3, but solutions such as gluing or interlocking elastic could also be used to secure the man-machine interface support part 4 to the body of the device 3.

Then, the control rod 2a is threaded through the second through-opening 4f, and the controlled device 2 is fixed to the man-machine interface support part 4 using the screws 2d passing through the through-holes 4a for s engage with the 2c attachment system.

Then, the central part 7d of the button base 7 is plugged onto the control rod 2a through the second through opening 4f so that the control rod 2a is received in the recess 7c of the central part 7d in order to connect functionally the control rod 2a and the button base 7. The button base 7 is forced down on the control rod 2a until it stops. The deformation of the plastic on the control rod 2a provides very good mechanical tensile strength. Other solutions, for example the gluing of the button base 7 on the control rod 2a can also be envisaged within the framework of the present invention. The control rod 2a and the central part 7d are oriented beforehand so that the flats are placed in correspondence in order to allow the control rod 2a to fit into the central part 7d. The button base 7 is also previously oriented to allow the passage of the first fixing elements 4c, formed on the man-machine interface support part 4, through the through opening in the form of an arc 7b.

Then, the circuit board electrical cable 6 is passed through the arc-shaped through opening 7b and the first through opening 4e, and the circuit board 5 is arranged above the button base 7 The printed circuit board 5 is then fixed to the man-machine interface support part 4 by means of the cooperation of the first fixing elements 4c and the second fixing elements 5a.

It is understood that the order of assembly is not limited to that described above. For example, in some cases, assembly may be made easier by passing the printed circuit board electrical cable 6 through the arc-shaped through-opening 7b and the first through-opening 4e before the base of the button 7 is forced down on the control rod 2a until it stops.

Finally, the button cover 8 is assembled to the button base 7 using the cooperation of the first assembly elements 8a and the second assembly elements 7a, so as to form a button 9 and to delimit a space central receiving space 10 between the button base 7 and the button cover 8. The printed circuit board 5 is received in the central receiving space 10.

The design of the rotary control member 1 described above makes it possible, in use, to prevent the introduction of splashes of liquids and particles inside the rotary control member 1 or inside the device body 3.

The design of the rotary control member 1 according to the preferred embodiment of the invention also makes it possible to prevent wear linked to friction between moving components. This design also allows a wider choice in the materials used for the manufacture of the rotary actuator, since in this case the use of materials resistant to friction such as technical thermoplastics such as nylon (PA6/PA66), polypropylene filled with glass fibers (PP+GF), which is more expensive, is not essential to guarantee a good lifespan of the rotary actuator.

The materials used can thus be, for example, common thermoplastics such as polypropylene (PP), Acrylonitrile Butadiene Styrene (ABS), polyethylene (PE).

Indeed, the button cover 8 is only in static contact (without relative movement) with the button base 7 via the first 8a and second 7a assembly elements, the printed circuit board 5 is only in contact with the man-machine interface support part 4 via the first 4c and second 5a fixing elements, the button base 7 is only in contact with the button cover 8 and the controlled device 2 via the control rod 2a and the recess 7c of the central part 7d, the man-machine interface support part 4 is only in contact with the printed circuit board board 5, with the controlled device 2 by the intermediary of the fixing system 2c and the screws 2d and with the body of the device 3 with which it is formed in one piece, and the controlled device 2 and the body of the device 3 is respectively only in contact with the interface support part man-machine 4.

It is understood that the particular embodiment which has just been described has been given as an indication and not limiting, and that modifications can be made without departing from the present invention.

Claims

– Rotary control member (1) configured to control the control rod (2a) of a controlled device (2) integrated within a device, the rotary control member (1) comprising:

an active part (5);

an active part supply and control member (6);

a button base (7); and

a button cover (8) attached to the button base (7) to form a button (9), the button cover (8) being adapted to drive the button base (7) in rotation when stressed by an user ;

characterized by the fact that:

the rotary control member (1) further comprises a stop assembly capable of limiting a range of rotation of the button;

the button cover (8) comprises first assembly elements (8a) and the button base (7) comprises corresponding second assembly elements (7a) such that by cooperation of the first (8a) and second ( 7a) assembly elements, the button cover (8) is attached to the button base (7) so as to define a central receiving space (10) in the button (9) between the button cover (8) and the button base (7), the active part (5) being received in the reception space (10) and connected to the active part supply and control member (5) by at least one opening configured to pass the active part supply and control member (6) formed in the button base (7); and

the button base (7) is configured to be operatively fixed to the control rod (2a) of the controlled device (2) and to be capable of driving said control rod (2a) in rotation to control the controlled device (2 ).
– Rotary control member (1) according to claim 1, characterized in that it comprises a man-machine interface support part (4) configured to be able to be secured to the body of the device (3 ), the man-machine interface support part (4) comprising an opening (4f) configured to allow the control rod (2a) of the controlled device (2) to pass and at least one opening (4e) configured to allow the active part supply and control member (6), at least one of the openings of the button base being in the form of an arcuate cut-out (7b) configured to let the active part supply and control member (6) and let pass first fixing elements (4c) carried by the man-machine interface support part (4), the active part (5) being fixed to the human-machine interface support part (5) by means of second fixing elements (5a) engaged with the first fixing elements (4c).
– Rotary actuator (1) according to claim 2, characterized in that the first fixing elements (4c) form the stop assembly.
– Rotary actuator according to claim 1, characterized in that at least one of the openings of the button base (7) is in the form of an opening located at a central part of the button base (7) and is configured to allow the active part supply and control member (6) to pass, and in that the button base (7) comprises first fixing elements, the active part being fixed to the button base by means of second fixing elements engaged with the first fixing elements and the active part (5) being rotatable with the button base.
– Rotary actuator according to Claim 2 or Claim 3, characterized in that the first (4c) and second (5a) fixing elements, the button base (7), the active part (5) and the cover button (8) are sized to form a first gap (11a) between the button base (7) and the first fasteners (4c), a second gap (11b) between the button base (7) and the active part (5), a third gap (11c) between the active part (5) and the button cover (8) and a fourth gap (11d) between the fixing elements (4c, 5a) and the button cover (8), so that in use the button base (7) and the button cover (8) are not in contact with the active part (5) or the fixing elements (4c, 5a).
– Rotary control member (1) according to any one of claims 1 to 5, characterized in that the button base (7) is configured to be fixed to the control rod (2a) of the controlled device (2) so as to form a gap (11e) between the button (9) and the man-machine interface support part (4), so that in use the button (9) and the man-machine interface support part machine (4) are not in contact.
– Rotary actuator (1) according to any one of claims 1 to 6, characterized in that the active part is one of a lamp, a display, a printed circuit board (5).
– Rotary control member (1) according to claim 7, in which the active part is a printed circuit board (5) which carries at least one of: a display device (5c), a luminous indicator, an indicator sound, a mechanical sensor and a touch sensor; the display device preferably being a digital display.
– Rotary control member (1) according to any one of claims 1 to 8, characterized in that the man-machine interface support part (4) comprises a projecting part extending, in use, around from the control rod (2a) towards the button base (7) to form a neck (4g), a central part (7d) of the button base (7) extending, in use, inside the neck (4g) of the man-machine interface support part (4) without coming into contact with the man-machine interface support part (4).
– Rotary control member (1) according to any one of claims 1 to 9, characterized in that the button base (7) comprises a circular groove (7e) arranged circumferentially on a surface (7f) on the part side of the human-machine interface support (4) and the human-machine interface support part (4) comprises a circular projection (4h) extending, in use, towards the button base (7) in a complementary manner to the groove (7e) of the button base (7), the projection (4h) of the man-machine interface support part (4) fitting, in use, into the groove (7e) of the base button (7) without coming into contact with the button base (7).
– Control assembly comprising a control member (1) according to any one of claims 1 to 10 and a controlled device (2) comprising a control rod (2a), characterized in that the button base (7) is configured to be plugged into the control rod (2a) and is able to control the controlled device (2) in rotation via the control rod (2a).
– Control assembly according to claim 11, characterized in that the control assembly is a temperature regulation assembly, the controlled device being a mechanical thermostat.
– Apparatus comprising a control assembly according to claim 11 or claim 12.