WO2023148459A1 - Rechargeable electronic cap and charging cradle - Google Patents

Abstract

The present invention relates to a charging cradle (1) for an electronic cap (2) for the cosmetic treatment of the skin, the charging cradle (1) being designed to be coupled with the electronic cap (2) in an interlocking manner, the charging cradle (1) comprising a plurality of cradle contactors (13) that are designed to be electrically connected to cap contactors (23) in order at least to charge the electronic cap (2), the charging cradle (1) comprising at least one magnetic element (11) configured to be magnetically attracted to at least one magnetic element (22) of the cap in order to keep the charging cradle (1) and the electronic cap (2) in the coupled position while ensuring contact is made between the cradle contactors (13) and the corresponding cap contactors (23).

Description

Rechargeable electronic cap and charging base

FIELD OF THE INVENTION

The present invention relates to the field of cosmetics, and more particularly to the field of cosmetic treatment of the skin. More specifically, the present invention relates to a device for activating and/or optimizing the effectiveness of a cosmetic substance, typically by light therapy and/or by generation of microcurrents, for example by iontophoresis and/or electroporation.

STATE OF THE ART

Promoting the absorption of a cosmetic substance through the skin of a user can be implemented by means of suitable devices. Some of these devices are sufficiently simple and compact to be able to be used by individuals, that is to say by people who are not professionals in the field of cosmetics in that they are devoid of particular knowledge in the field of cosmetics. of cosmetics. Such devices are generally equipped with a power supply of the button cell type, which limits their lifespan. There is therefore a risk of waste, financial loss and negative impact on the environment.

DISCLOSURE OF THE INVENTION

An object of the invention is to extend the life of devices for the cosmetic treatment of the skin.

Another object of the invention is to be able to program devices for the cosmetic treatment of the skin as well as to be able to monitor their use in a simple and reliable manner.

In addition, another object of the invention is to improve the reliability, the hygiene and the robustness of devices for the cosmetic treatment of the skin.

Another object of the invention is to improve the reliability, hygiene and robustness of devices for the cosmetic treatment of the skin.

Another object of the invention is to make the use of devices for the cosmetic treatment of the skin safer and more easily repeatable.

The present invention thus relates, according to a first aspect, to a charging base for an electronic cap for cosmetic treatment of the skin, the charging base being intended to be coupled with the electronic cap by shape cooperation, the charging base comprising a plurality of base contactors intended to be electrically connected to cap contactors in order to at least charging said e-cap, the charging cradle comprising at least one cradle magnetic member configured to be in magnetic attraction relationship with at least one cradle magnetic member, to maintain the charging cradle and e-cap in a coupled position while ensuring contact between the base contactors and the corresponding cap contactors.

According to advantageous and non-limiting characteristics, taken alone or in any combination: the base magnetic element is a magnet or a metallic element; the charging base comprises a circular external face and the magnetic base element is positioned in the center of the circular external face, the base contactors being positioned at least partially on the periphery of the magnetic base element; the pedestal magnetic member is positioned in a pedestal recess, the pedestal recess further comprising a shoulder to prevent contact between the pedestal magnetic member and the cap magnetic member; the charging base comprises two base contactors intended to allow the transfer of electric current with two corresponding cap contactors; the charging base further comprises at least one base contactor intended to allow the transfer of data with a corresponding cap contactor; each plinth contactor comprises a contact element mounted on a spring; each plinth contactor comprises a ring, the plinth contactors being mounted concentrically with respect to each other; the charging base comprises at least one, preferably a plurality of, base keying device(s) configured to ensure a unique positioning of the cap relative to the base with the cap contactors facing the base contactors; the charging base comprises at least three base polarizers arranged at different distances from each other; the base polarizers are positioned on the periphery of the base magnetic element; the base polarizers are trapezoidal in shape; the base polarizers have rounded corners; the charging cradle includes a sensory device indicating at least one state of the electronic cap when the electronic cap is connected to the cradle; a geometric characteristic, a weight characteristic and/or the composition of the base magnetic element are correlated to the weight of the stopper such that the attractive force which is exerted between the magnetic base element and the element magnetic cap is between 5 times and 12 times a mass of the cap.

According to a second aspect, the invention relates to an electronic plug for the cosmetic treatment of the skin configured to be removably connected to a reservoir of a cosmetic substance to be activated, the electronic plug being intended to be coupled with a charging base in form cooperation, the electronic cap comprising an electronic device including a battery and a plurality of cap contactors configured to be electrically connected to pedestal contactors, the cap comprising a magnetic cap element configured to be in attracting relationship with a base magnetic element, in order to maintain the charging base and the electronic cap in the coupled position while ensuring contact between the base contactors and the corresponding cap contactors in order at least to charge said electronic cap.

According to advantageous and non-limiting characteristics, taken alone or in any combination: the magnetic plug element is a magnet or a metallic element; the cap magnetic element is intended to provide a function of fixing and holding in position a plurality of parts of the cap; the electronic cap comprises two cap contactors intended to allow the transfer of electric current with two corresponding base contactors; the electronic cap further comprises at least one cap contactor intended to allow the transfer of data with a corresponding base contactor the electronic cap has a cylindrical shape.

According to a third aspect, the invention relates to an electronic assembly comprising a charging base as previously described and an electronic plug as previously described, the electronic plug being able to be removably coupled to the charging base, the magnetic plug elements and cradle holding the charging cradle and the electronic plug in the coupled position while ensuring a contact between the base contactors and the cap contactors in order at least to charge said electronic cap.

According to advantageous and non-limiting characteristics, taken alone or in any combination: in the coupled position, the magnetic plug element is positioned facing a shoulder of the base and facing the magnetic base element; in the coupled position, clearances are present between the base and the cap except at least at the level of the connection between the base contactors and the cap contactors.

According to a fourth aspect, the invention relates to a method for charging an electronic cap as previously described using a charging base as previously described comprising the following steps of: a) Coupling the electronic cap with the charging base so that the cap contactors face the base contactors until the cap contactors and the corresponding base contactors come into contact; b) Transfer of current between the charging base and the electronic cap, the transfer of current preferably starting automatically after the contacting of the cap contactors and the base contactors at the end of step a) of coupling.

According to advantageous and non-limiting characteristics, taken alone or in any combination: a sensory signal is emitted by the charging base according to at least one state of the electronic cap.

According to a fifth aspect, the invention relates to a method for exchanging data between an electronic cap as described above using a charging base as described above, the electronic cap and the charging base each comprising at least at least one contactor intended for data transfer, comprising the following steps of: a) Coupling the electronic plug with the charging base so that the plug contactors face the base contactors until the contactors of the plug and corresponding plinth contactors; b) Transfer of data between the charging base and the electronic plug, and/or vice versa, implemented by data processing means.

DESCRIPTION OF FIGURES

Other characteristics and advantages of the present invention will appear on reading the following description of a preferred embodiment. This description will be given with reference to the appended figures including:

Figure 1 is a schematic sectional view of a charging base according to a possible embodiment of the invention;

Figure 2 is a schematic perspective view of a charging cradle according to a possible embodiment of the invention;

Figure 3 is a schematic top view of an electronic plug according to a possible embodiment of the invention;

Figure 4 is a schematic sectional view of an electronic plug according to a possible embodiment of the invention;

Figure 5 is a schematic perspective view of an electronic plug according to a possible embodiment of the invention;

Figure 6 is a schematic sectional view of an electronic assembly according to a possible embodiment of the invention;

Figure 7 is a schematic perspective view of an electronic assembly according to a possible embodiment of the invention;

Figure 8 is a schematic enlarged view of a section of the electronic assembly at a connection between a base contactor and a cap contactor according to a possible embodiment of the invention;

Figure 9 presents the steps of a method for charging an electronic cap according to a possible embodiment of the invention;

Figure 10 presents the steps of a method for programming an electronic cap according to a possible embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION

In what follows, the expression "(removably) coupling" designates a temporary, reversible coupling (for example to allow the charging of a battery) carried out according to the will of the user, without the need for tools or specific knowledge and without deterioration of any part.

charging cradle According to a first aspect, there is proposed a charging base 1 for an electronic cap 2. The electronic cap 2 is for example a cap 2 intended to be removably coupled to a container, in particular a reservoir containing a substance to be activated, such as for example a cosmetic tube. It is understood that there is no limitation concerning the container and what is contained by the container, the electronic cap 2 being able to be adapted to other types of containers.

The base 1 comprises at least one, and preferably several, base contactors 13 intended to be electrically connected to at least one, and preferably several, electronic cap contactors 23. These contactors 13, 23 are provided to allow the transfer of electrical and/or data current between base 1 and cap 2.

The charging base 1 is intended to be coupled with the electronic cap 2 by shape cooperation. In other words, at least one form of the charging base 1 is at least partially complementary to another form of the electronic cap. This makes it possible to ensure good coupling (assembly) between the charging base 1 and the electronic cap 2, including during the possible transport of these coupled elements. Preferably, the coupling is ensured by a magnetic attraction relationship between at least one magnetic base element 11 and at least one magnetic cap element 22.

FIG.1 illustrates a sectional view of a base 1. The base 1 can take any suitable form extending preferably along the longitudinal axis X1-X1. As illustrated, the base 1 has a shape of revolution which extends along and around the longitudinal axis Xi-Xi such as a cylindrical shape of revolution, or tubular, centered on the longitudinal axis X1-X1, spherical whose longitudinal axis X1-X1 constitutes the axis of rotation, or even parallelepipedic, always centered on the longitudinal axis X1-X1. Thus, the base 1 can be at least defined by a radius and a height, the height extending along the longitudinal axis X1-X1 of the base. The radius of the plinth 1 can vary so that the plinth 1 flares out or becomes thinner. For example, in FIG.1 the lower part of the base 1, along the longitudinal axis X1-X1 of the base 1, becomes thinner, i.e. the radius decreases, so that the base 1 has rounded corners. This description is based on a base 1 of cylindrical shape but the base 1 is not limited to a cylindrical shape.

The base 1 comprises at least one magnetic base element 11 . The base magnetic element 11 is a magnet or an element attracted to the magnet such as a metallic element. In other words, the base magnetic element 11 is one element of a magnet/metal element couple, said couple being able to enter into a magnetic attraction relationship, the other element of the couple being a magnetic plug element 22. The base magnetic element 11 is therefore configured to be in a magnetic attraction relationship with a cap magnetic element 22. It is therefore understood that if the base magnetic element 11 is a magnet, the cap magnetic element 22 will be a metallic element, and vice versa. One could also conceive, without departing from the scope of the invention, that each of said magnetic base element 11 and magnetic cap element 22 be a magnet oriented in such a way as to provide the magnetic attraction between each of the magnets (i.e. say the north pole of one magnet facing the south pole of the other magnet). The rest of the description mainly refers to a base 1 comprising a magnetic base element 11 but the base 1 could include a plurality of magnetic elements 11.

The term "magnet" is short for permanent magnet, i.e. an element made of a hard magnetic material whose remanent magnetism and coercive force are large. The magnet is capable of exerting an attractive force on certain elements such as the metallic element. The magnet is for example made of hard ferrite or aluminium-nickel-cobalt.

The term "metallic element" designates an object sensitive to the magnet, that is to say which is attracted by the magnet. Thus, the metallic element seeks to approach the magnet.

Preferably, the base magnetic element 11 is positioned in a base recess 12, that is to say set back from a surface of the base. Base recess 12 is preferably shaped to accommodate base magnetic member 11. Typically, base magnetic member 11 is cylindrical and base recess 12 is also cylindrical in shape. The base recess 12 also preferably comprises a shoulder 120 intended to systematically leave a clearance between the cap magnetic element 22 which will face the base magnetic element 11 as will be detailed later. Thus, the base recess 12, if it is cylindrical for example, is defined by two side surfaces 121, 122: a first side surface 121 and a second side surface 122. The first side surface 121 is located below the second lateral surface 122 along the longitudinal axis Xi- Xi in FIG.1. The first side surface 121 delimits a first hollow cylindrical volume of radius less than the radius of the second hollow cylindrical volume delimited by the second side surface 122. The two side surfaces 121, 122 are separated by the shoulder 120. In the embodiment thus illustrated, the shoulder 120 takes the form of an annular shoulder around the axis X1-X1, separating said first side surface 121 and second side surface 122. This shoulder 120 (or increase in diameter of the second side surface 122) thus constitutes a functional play space to possibly accommodate the magnetic plug element 22, in particular in the case where the latter is not completely screwed, or protrudes from the cap, as will be detailed later. Such a functional clearance makes it possible to avoid any contact between the magnetic plug element 22 and the magnetic base element 11, contact which would then make it difficult (not to say impossible) the subsequent separation of the electronic plug 2 from the charging base. 1. This functional play makes it possible to take into account the manufacturing and/or assembly tolerances of the cap magnetic element 22 on the cap 2, in particular in the case where the latter are assembled by screwing, as detailed by the following, in such a way as to respect the lack of contact mentioned above. Preferably, the functional clearance space is of the order of a few millimeters.

Note that, in an alternative embodiment, it is not necessary to avoid contact between the cap magnetic element 22 and the base magnetic element 11 . Indeed, in this alternative embodiment, the manufacturing/assembly tolerances are also compensated by contactors 13, 23 having a stroke large enough for contact between the base contactors 13 and the cap contactors 23 to be ensured.

Preferably, the base 1 comprises a central part 101 projecting along the Xi-Xi axis in which the base recess 12 is positioned. The central part 101 has an outer face of the base 102 intended to face a internal plug 213. The central part 101 is preferably cylindrical and therefore comprises an outer face of the circular base 102, then forming a disc or a ring. The base recess 12, and therefore the base magnetic element 11, are preferably located in the center of the outer face of the base 102 circular. Thus, the base magnetic element 11 which is arranged in the base recess 12 is set back from the outer face of the base 102.

The pedestal 1 includes a plurality of pedestal contactors 13 as shown in the perspective view of the pedestal in FIG. 2. Contactors are electrotechnical devices intended to establish the passage of an electrical signal during the assembly of the electronic plug 2 and the charging base 1 . The base contactors 13 are intended to be in contact with the cap contactors 23. In the example shown, there are different types of contactors. Contactors can be intended for charging and/or data transfer.

According to a certain embodiment, the base 1 comprises two base contactors 13 intended for charging the cap 2, each of the contactors conveying current from the charging base 1 to a battery of the electronic cap 2. For example, in the case of a direct current, a first contactor is a positive contactor while the other is a negative contactor. Thus, the base 1 only has a charging function.

According to another embodiment, the base 1 further comprises at least one base contactor 13, preferably two, intended for the transfer of data between the electronic cap 2 and the charging base 1 . Such data transfer can for example be provided from the electronic cap 2 to the charging base 1 in order to retrieve and store in the charging base 1 (for example for subsequent reading or analysis and/or transfer to a computer / telephone) various information related to the use of the electronic cap 2. Such data transfer can also be provided in the opposite direction, from the charging base 1 to the electronic cap 2 in order to program the latter. A transfer of data in both directions can also make it possible to carry out the technical diagnosis of the electronic stopper 2. Different uses can then be envisaged without departing from the scope of the invention. This base 1 then has two functions: that of charging a cap 2 and that of allowing data transfer with a cap 2. More specifically, a base 1 is preferred comprising two base contactors 13 intended for charging and two base contactors 13 for data transfer or four base contactors 13 in total. A base contactor 13 comprises at least one metal part which allows current transfer. A plinth contactor 13 can take several forms. The base contactor 13 may be a pusher comprising a spring 132 and a contact element 131, the contact element 131 acting as a metal part allowing transfer of the electrical signal. The contact element 131 can for example be a ball or a contact finger comprising for example a cylindrical part surmounted by a partially spherical part. It is therefore understood that the contact element 131 is the part of the base contactor 13 which is intended to be in contact with a cap contactor 23. The spring 132 is positioned under the contact element 131 in a cavity of the base 1 . Preferably, the cavity is in the central part 101 projecting from the base 1 and the base contactor 13 is therefore located on the periphery of the base magnetic element 11 . Due to the effect of the spring 132, the contact element 131 protrudes from the base 1 (and, if necessary, protrudes from the central part of the base 101). Under the effect of an external force, the contact element 131 can also be inserted reversibly, ie the time of application of the external force, in the cavity. The use of this type of base contactor 13 makes it possible to guarantee excellent electrical contact, despite the manufacturing and/or assembly tolerances of the various parts. Indeed, defects in flatness, alignment, etc. one and/or the other of the cap 23 and/or base 13 contactors can thus be compensated automatically. So the reliability of the loading and/or of the data transfer between the charging base 1 and the electronic cap 2 is optimal.

In a preferred embodiment, the base 1 comprises a plurality of base contactors 13 and these base contactors 13 are positioned at least partially around the base magnetic element 11, that is to say at its periphery, for example along a circular curve as shown in the perspective view of the base in FIG. 2.

A plinth contactor 13 can also have the shape of a ring. The ring is metallic to allow the transfer of the electrical signal. The ring may have an internal part located in a cavity of the base 1 and an external side face, i.e. a circular ribbon, is level with one face of the base, i.e. the external face of the base 102 which is preferably circular. Optionally, the outer side face of the ring is curved so that the ring protrudes from the base 1 in the same way as in the case of base contactors 13 of the push type. The ring can also be arranged on one or a plurality of springs 132. The base 1 preferably comprising a plurality of base contactors 13, the base contactors 13 of the ring type are arranged concentrically with respect to each other (and ideally around the base magnetic element 11).

The examples of contactors presented are not limiting. The base contactors 13 and/or the cap contactors 23 could be arranged in the same way as on a jack plug, that is to say that each ring of the jack plug is a contactor.

As explained, the base contactors 13 allow in particular a transfer of current with an electronic plug 2. In the case of the charging of the plug 2 for example, the plug contactors 23 act as a current receiver while the base contactors 13 act as a current transmitter. Consequently, the base preferably comprises a port 1 intended to be connected to an electrical source, the source also being able to transfer data. Port 14 is typically a USB ("Universal Serial Bus") port but the proposed arrangement is not limited to any type of port 14. Port 14 is connected to base contactors 13 via electronic components in any manner known from the skilled person. Consequently, the loading of the electronic cap 2 can be implemented without cluttering the electronic cap 2. Indeed, the electronic cap 2 being a small object such as for example a cylinder of 2-3 cm in diameter (for example 2.5 cm), so as not to weigh down and enlarge the electronic cap 2, it is not desired to add a port 14 to it, such as a USB port 14, for the power supply. In addition, when handling a tube equipped with an electronic cap, it should not be 2, the user introduces a substance (for example a cosmetic cream) into the port 14 which can damage the electrical and electronic part of the cap. The absence of the loading port on the stopper 14 also greatly facilitates its cleaning, by avoiding the formation of a cavity accumulating waste but also by avoiding a point of entry of humidity. The reliability of the electronic plug 2 is thus globally improved.

Preferably, the charging base 1 comprises a sensory device indicating the state of the electronic cap 2 when the electronic cap 2 is connected to the base 1. The states are for example the following states: correct connection of the cap to the base, charging in course, loading completed, connection problem, etc. The sensory device can for example be haptic and generate vibrations of the base 1 as a function of a being of charge of the electronic cap 2 or even of a data transfer state of the electronic cap 2 (for example, if data is transmitted towards the electronic stopper 2, one can envisage that the base 1 vibrates when the transfer operation is finished). The sensory device can alternatively or additionally be optical and can for example be a diode which lights up when the cap 2 is charged and/or which displays different colors depending on the state of charge. The sensory device can alternatively or additionally be audible, for example by emitting a sound when the cap 2 is loaded. It is understood that the proposed arrangement is not limited to these examples of sensory devices, and any means of communication with the user can be envisaged without departing from the scope of the invention.

According to a preferred embodiment, the base 1 comprises at least one base polarizer 15, preferably a plurality of base polarizers 15. A polarizer is a device, generally mechanical, making it possible to avoid errors in assembly, mounting or connection. Here, the base polarizers 15 are configured to ensure a unique positioning of the cap 2 relative to the base with the cap contactors 23 opposite the base contactors 13. This makes it possible to ensure not only that the cap contactors 23 are facing the base contactors 13 when assembling the electronic plug 2 on the charging base 1, but also, in the case where, as illustrated and described above, there are "current" contactors and "data" contactors », to make sure of the good correspondence between each one. Thus, the reliability and ease of use of the device are improved.

Preferably, the base polarizers 15 are positioned in a trench (or cavity) 103 of the base 1 intended to accommodate a base 21 of the electronic cap 2. The trench 103 extends around the central part of the base 101, and therefore around of the X1-X1 axis. THE base polarizers 15 can be arranged along a side surface 104 of the central part 101, ie the internal side surface of the trench 104, as illustrated in FIG.2 and FIG.3. They can also be arranged along the outer side surface of the trench 105. The base polarizers 15 are therefore positioned on the periphery of the base magnetic element 11 .

The base 1 comprises at least three base polarizers 15 arranged at different distances from each other and projecting from the surface on which they are arranged. FIG.3, which is a top view of the base, clearly visualizes the difference in distance between the keyed base 15. It can be seen that the distance between a first keyed base 15a and a second keyed base 15b is different from the distance between the second keyed base 15b and a third keyed base 15c. The notion of "different distances" is very important here because it is this difference that has the function of undeception. Indeed, the base polarizers 15 are supposed to adapt to cap polarizers 24 so as to allow only one positioning of the plug 2 on the base 1. The fact that the distances between the polarizers 15, 24 are different prevents any other positioning of the stopper 2 in the base 1 than the single predetermined positioning.

The base polarizers 15 can be of different sizes from each other. In the case illustrated in FIG.3, they have substantially the same dimensions. The base polarizers 15 are preferably trapezoidal in shape and have, for example, rounded corners so as to facilitate the positioning of the cap 2 in the base 1 .

In an alternative embodiment, the base polarizers 15 are not of different sizes from each other and are not spaced at different distances from each other. The keying function is ensured by slots or ribs. Each base polarizer 15 includes a slot or a rib. For each base polarizer 15, the slot or the rib is arranged differently from the slot or the rib of another base polarizer 15. A slot is provided to be complementary to a rib. Thus, the slot or the rib of each keyed base 15 is complementary to the slot or the rib of a keyed cap 24. It could be envisaged that the keyed base 15 each have a slot while the keyed cap 24 each have a rib, or vice versa. It could also be envisaged that certain base polarizers 15 have slots and certain base polarizers 15 have ribs. Conversely, some cap polarizers 24 therefore have ribs and some plug polarizers 24 have slots. As each slot or rib of a base key 15 is complementary to the slot or the rib of a single key cap 24, each base key 15 is complementary to a single cap key 24.

These base 15 and cap 24 polarizers therefore make it possible, by their complementarities, to ensure a unique positioning of the cap 2 on the base 1. With the polarization system, when the user wishes to position the cap 2 on the base 1, it will suffice, for example, to rotate the plug 2 on the base 1 to the position allowing the insertion of each rib of the base polarizers 15 or the plug polarizers 24 are inserted into a slot of a base polarizer 15 or a cap foolproof 24.

Electronic cap

According to a second aspect, an electronic plug 2 is proposed as already introduced in the previous part of the description. The electronic plug 2 is provided to be coupled in a removable, temporary manner and by shape cooperation with the charging base 1 so as to be charged and/or receive and/or transmit data. FIG. 4 shows a sectional view of the stopper 2 according to one possible embodiment. The plug 2 can take any suitable shape extending preferably along the longitudinal axis X2-X2, such as a cylindrical shape of revolution, or tubular, centered on the longitudinal axis X2-X2, spherical whose longitudinal axis X2-X2 constitutes the axis of rotation, or even parallelepiped, always centered on the longitudinal axis X2-X2. Thus, the stopper 2 can be at least defined by a radius and a height, the height extending along the longitudinal axis X2-X2 of the stopper 2. The radius of the stopper 2 can vary so that the stopper 2 is flares or thins. For example, in FIG. 4 the lower part of the base 1, along the longitudinal axis X2-X2, widens, i.e. the radius increases. This description is based on a plug 2 of cylindrical shape but the plug 2 is not limited to a cylindrical shape.

From top to bottom, along the longitudinal axis X2-X2 of the stopper and according to FIG. 4, the cap 2 comprises an external structure comprising an activation head 201, a selection ring 202 (optional) and a base 21. The activation head 201 has an external activation surface and an internal surface delimiting a channel rectilinear passing through the activation head 201 and emerging on the external activation surface. Furthermore, the activation head 201 includes a fastener 203 that includes a first thread. The base 21 is intended to be coupled in a removable and temporary manner to the base and has an internal surface 211 delimiting a base orifice 212 passing through the base 21 along the longitudinal axis X2-X2. The base 21 also has a lateral outer surface of the base 210.

As can be seen in Figure 4 or 5, the fixing part 203 is a part of revolution extending along and around the longitudinal axis X2-X2. The fixing part 203 has a central through hole along the longitudinal X2-X2, making it possible to match and at least partially form the rectilinear channel. The fixing part 203 thus advantageously forms a hollow screw, for example made in the form of a metal insert within the activation head 201. The fixing part 203 passes through the base orifice 212.

The base inner surface 211 further forms a base recess 214, the base orifice 212 preferably being arranged at the center of the base recess 214. Preferably, the base inner surface 211 has a side internal cap 213 intended to face, or even come into contact with, the external face of the base 102. The internal surface of the base 211 also preferably has a lateral internal surface of the base 211a. The base recess 214 is preferably arranged in the center of the internal face of the cap 213.

The stopper 2 comprises at least one magnetic stopper element 22. The magnetic stopper element 22 is preferably positioned in the base recess 214. The magnetic stopper element 22 is preferably arranged at the center of the internal face of the cap 213. More precisely, the cap magnetic element 22 comprises a second thread complementary to the first thread of the fixing piece 203 and the cap magnetic element 22 is screwed to the fixing piece 203. The cap magnetic element 22 then takes the form, or at least performs the function, of a nut screwed onto the fixing part 203. This nut makes it possible to fix the activation head 201 to the base 21. This nut makes it possible to maintain assembled the all of the components of the electronic plug 2, and to bring together in a single piece all the mechanical assembly constraints of the electronic plug 2, thus facilitating its assembly, its dismantling and guaranteeing its repairability. Thus, the cap magnetic element 22 is intended to ensure a function of fixing and holding in position a plurality of parts of the cap 2.

According to a certain embodiment, the stopper 2 comprises a second magnetic stopper element which is the fixing part 203 (or fixing screw). In this case, the fixing piece 203 also contributes to the magnetic coupling with the at least one magnetic base element 11 even if the section facing the magnetic base element 11 is less than that of the magnetic cap element 22 . Similar to the magnetic base element 11, the magnetic cap element 22 is a magnet or a metal element as defined in the previous part of the description. The cap magnetic element 22 is configured to be in a magnetic attracting relationship with the base magnetic element 11 . If the base magnetic element 11 is a magnet, the magnetic cap element 22 is a metallic element and vice versa. The cap magnetic element 22 preferably has the shape of a revolution, for example of a disk or a cylinder. The radius of the cap magnetic element 22 is adapted so that it is greater than the first cylindrical volume delimited by the first lateral surface 121 of the base recess 12 and less than the second cylindrical volume delimited by the second lateral surface 122 of the base recess 12. In other words, the magnetic stopper element 22 has a shape adapted to possibly be able to be partially inserted into the base recess 12 and come if necessary to extend into the playing space functional defined by the shoulder 120 of the base defined above. This is particularly advantageous in the case where, as detailed above, the cap magnetic element 22 takes the form of a nut screwed onto the fixing part 203. Indeed, the manufacturing, assembly tolerances, etc., cause the cap magnetic element 22 to be more or less screwed onto the fixing piece 203 so that its axial positioning along the longitudinal axis X2-X2 can fluctuate. This fluctuation is then remarkably taken into account by the functional play space defined by the shoulder 120 of the charging base 1, which can accommodate the cap magnetic element 22 in the event that the latter protrudes from the internal face of the cap 213 .

The magnetic plug element 22 (advantageously in the form of a nut) is advantageously made of ferritic stainless steel, which makes it possible to guarantee, in addition to the magnetic attraction with the magnetic base element 11, a high resistance to the environment. exterior, in particular to water and/or cosmetic products, thus guaranteeing the longevity and reliability of the electronic plug. Preferably, in particular for more robustness, the fixing piece 203 is also made of metallic material. The latter being, as can be seen in Figures 4 and 5, in contact with the outside, it can also, in a remarkable way, contribute, in addition to the aforementioned nut, to the magnetic attraction relationship of the 'invention. Thus, in other words, the cap magnetic member 22 includes the fastener 203 (in addition to the aforementioned nut). The efficiency and reliability of the magnetic attraction relationship (and therefore the assembly between the electronic cap 2 and the charging base 1) are thereby improved. The cap 2 also preferably comprises a plurality of cap contactors 23. The cap contactors 23 are intended to be in contact with the base contactors 13. As for the base 1, the cap contactors 23 can be intended for the charging or data transfer.

The cap contactors 23 are typically cylindrical elements internal to the base 21 and of which an external surface is at the level of the internal face of the cap 213 and is intended to face a base contactor 13.

The cap contactors 23 can also take the form of rings similar to the base contactors 13.

It is understood that the type of cap contactors 23 depends on the type of base contactors 13 adapted to this cap, i.e. the cap 23 and base contactors are of the same type.

Preferably, the cap contactors 23s are positioned on the internal face of the cap 2, on the periphery of the cap magnetic element 22 as illustrated in the perspective view of the cap 2 in FIG. 5.

Furthermore, the number of cap contactors 23 intended for the load depends on the number of base contactors 13 intended for the load, i.e. the same number.

As explained, the cap contactors 23 allow at least a current transfer with a base 1. In the case of the load of the cap 2 for example, the cap contactors 23 act as a current sink while the base contactors 13 act as a current transmitter. The aim is to charge the electronic cap 2. The cap 2 therefore comprises a rechargeable battery 25 which allows the cap 2 to operate autonomously once its battery 25 has been charged with electricity. Consequently, the cap contactors 23 are connected to the battery 25 of the cap 2 via electronic components in any manner known to those skilled in the art.

Regarding the cap contactors 23 intended for the transfer of data, the cap 2 preferably includes them systematically. Indeed, it is desired that any stopper 2 can be programmed and reprogrammed, in particular during its manufacture and/or repair, which requires stopper contactors 23 intended for the transfer of data. On the other hand, it is not necessary for a user to program his plug 2 himself, therefore the base 1 of the user will not necessarily be equipped with base contactors 13 intended for the transfer of data. On the contrary, a technician and/or a repairman may hold a base equipped with base contactors 13 intended for the transfer of data to perform programming of caps 2 for the users. It is therefore understood that, in a certain embodiment, the bases 1 can include or not base contactors 13 intended for the transfer of data while the caps 2 will systematically include cap contactors 23 intended for the transfer of data.

It should be noted that, in a certain embodiment, the sensory device described in the part of the description relating to the base 1 could be on the cap 1. It could also be envisaged that the base 1 and also the cap 2 each comprise a sensory device . For example, cap 2 could include a sensory device that alerts to a low battery condition.

Where appropriate, the cap 2 further comprises a plurality of cap polarizers 24 intended to complement the base polarizers 15. The cap polarizers 24 are arranged at the level of the internal side surface of the base 211a. The cap polarizers 24 can also be arranged on an outer side surface of the base 21. The cap polarizers 24 are therefore positioned on the periphery of the magnetic cap element 22.

The cap 2 comprises at least three cap polarizers 24 arranged at different distances from each other. It is understood that the number of keyed cap 24 is closely linked to the number of keyed base 15, i.e. the number of keyed cap 24 is equal to the number of keyed base 15.

The cap locators 24 can be of different sizes. In the case illustrated in FIG. 5, a first cap key 24a is smaller than a second cap key 24b. The cap polarizers 24 are preferably trapezoidal in shape and have, for example, rounded corners so as to facilitate the positioning of the cap 2 in the base 1 .

In an alternative embodiment presented above, the cap polarizers 24 can each have a slot or a rib intended to be complementary to a rib or a slot of a base polarizer 15.

It will be understood that the cap polarizers 24 are designed in a complementary manner to the base polarizers 15. the inner side surface of the trench 104. Conversely, if the plug polarizers 24 are arranged on the outer side surface of the base 210, the base polarizers 15 are arranged on the outer side surface of the trench 105. As mentioned previously , this allows a single positioning of the electronic plug 2 on the charging base 1 .

Electronic set According to a third aspect, an electronic assembly 3 comprising a charging base 1 and an electronic plug 2 as described above is proposed. The FIGS. 6 and FIG. 7 illustrate a sectional view of an electronic assembly 3 as well as a perspective view of an electronic assembly 3 according to one possible embodiment.

The charging cradle 1 is detachably coupled with the electronic cap 2 by shape cooperation so that the cradle contactors 13 are in contact with the cap cradle contactors 23. In this position, the longitudinal axis X1-X1 of the cradle and the longitudinal axis Xz-Xz of cap 2 coincide.

The system of polarizers 15, 24 possible ensures a unique positioning of the plug 2 on the base 1. The base polarizers 15 are supposed to fit between the cap polarizers 24. Given the different distances separating the base polarizers 15 from each other and separating the plug polarizers 24 from each other, there is only one possible positioning. so that the cap polarizers 24 fit between the base polarizers 15.

When cap 2 is coupled with base 1, the inner face of base 21 of cap 2 faces the outer face of base 1. In this way, the cap magnetic element 22 faces the base magnetic element 11. Preferably, the cap magnetic element 22 is positioned facing the shoulder 120 of the base and is not in direct contact with the base magnetic element 11 . The cap magnetic element 22 is therefore in a magnetic attraction relationship with the base magnetic element 11 and the cap 2 remains positioned on the base 1. The attraction relationship between the magnetic elements 11, 22 is intense enough to that the cap 2 and the base 1 remain coupled even if the electronic assembly 3 is not in a vertical position, ie the longitudinal axes X1-X1 and X2-X2 are not substantially parallel to the vertical. This makes it possible to facilitate the transport 14 of the plug 2 and the base 1 coupled, that is to say of the electronic assembly 3, in a toiletry kit for example without the addition of a potentially penalizing mechanical retention solution from an ergonomic, design or durability point of view. Preferably, the base magnetic element 11 is located at the center of the outer face of the circular base and the magnetic cap element 22 is located at the center of the inner face of the cap 213. Thus, the attraction relationship induces a homogeneous contact between the cap 2 and the base 1 at the periphery of the magnetic elements 11, 22. base magnetic elements 11 and cap magnetic elements 22. The base 1 and the cap 2 are designed so that clearances are present between the base 1 and the cap 2 except at least at the level of the connection between the base contactors 13 and the cap contactors 23. As explained, there are for example a clearance between the base magnetic element 11 and the cap magnetic element 22. There are also preferably clearances between the base 21 of the cap 2 and the base 1 . These clearances make it possible to ensure contact between the base contactors 13 and the cap contactors 23. Indeed, contact between other parts of the base 1 and of the cap 2 must not cause a clearance between the contactors of base 13 and cap (which is absolutely undesirable). However, the use of push-type base contactor 13 allows the latter to retract during the coupling of the electronic plug 2 on the charging base 1 then allowing surface contact between the base 21 (in particular the internal face of the plug 213) and the charging base 1 (in particular the outer face of the base 102) while guaranteeing good electrical contact between the base contactors 13 and the cap contactors 23. This makes it possible both to ensure good stability and good charging (and/or data transfer) between cap 2 and charging base 1

Thanks to the system of keying devices 15, 24, if any, the cap 2 is coupled to the base 1 in a single position and the base contactors 13 are in contact with the cap contactors 23. In the case, for example, of push-type contactors, each base contactor 13 faces a corresponding cap contactor 23. Since the cap 2 is small, it can be complicated for the user to correctly position the cap 2 on the base 1. The system of polarizers 15, 24 facilitates positioning, including "blind". (that is to say without the user needing to look carefully at the location of the cap 23 or base 13 contactors), and rules out any position in which the base contactors 13 do not face to cap contactors 23.

According to this embodiment, despite the fact that the base contactors 13 are of the push type, the invention ensures the coupling of the cap 2 on the base 1. Indeed, the spring 132 of the base contactor 13 exerts a force on the contact element 131 . Although this force is weak, the spring 132 must exert a sufficient force to maintain the contact element 131 in contact with the cap contactor 23, for example a force of 2 Newton. If there are four plinth contactors 13, the cumulative forces exerted by the springs 132 are 8 Newton. FIG. 8 is an enlarged view of a contact between a base contactor 13 and a cap contactor 23 and illustrates a force exerted by a base contactor 13 on the cap. Thus, if a cap 2 is positioned on the base 1, the base contactors 13 exert a force of 8 Newton on the cap 2. The cap 2 must be as light as possible since it is intended to be transported, for example with a mass of less than 80g, preferably less than 60g, in particular a mass of around 50g which is generally largely insufficient for the plug 2 remains, under the action of its own weight, positioned on the base 1 in such a way that the plug contactors 23 are in optimal contact with the base contactors 13 (in particular in the previous example of the 8 Newtons of effort contactors which cannot be overcome by the weight of the plug of approximately 0.5 Newton). The magnetic elements 22, 11 provided in the cap 2 and the base 1 therefore make it possible, by their magnetic attraction relationship, to counter the force of the base contactors 13 of the push type, by at least partially compressing the springs, and to maintain the contactors 13, 23 in optimum contact, including when the electronic assembly 3 formed by the cap 2 and the base 1 are not in the vertical position, which is particularly the case during transport of the assembly.

Ideally, the composition of the base magnetic element 11, and/or at least one of its dimensions is correlated to the weight of the cap 2. More precisely, the pair of base/cap magnetic elements 11, 22, and therefore the force of attraction which is exerted between them, is adapted to the weight of the stopper 2. For example, provision could be made to use for the base magnetic element 11 (or alternatively for the stopper magnetic element for the base magnetic element 11 and for the cap magnetic element 22) a magnetic attraction force of between 5 times and 12 times the mass of the cap. For example, in the case of an electronic cap 22 having a mass of 50 g, a magnetic attraction of between 260 g (i.e. approximately 2.6N) and 600 g (i.e. approximately 6 N), preferably equal to 400 g (i.e. about 4N).

It is understood that the heavier the cap 2, the less the force of attraction necessary between the base/cap magnetic elements will be intense and vice versa. Thus, the type of magnet and metal element can be adapted to the weight of the stopper 2.

Furthermore, the force of attraction is judiciously defined taking into account the active magnetic surface of the magnetic plug element. By active magnetic surface is thus meant the surface which is closest to the magnetic base element 11 and which will therefore cooperate with the latter. For example, in the example illustrated in FIG.5, the active magnetic surface does not take into account the central hole 221 nor the indentations 222 provided for the dismantling tool. Such an active magnetic surface is for example between 30 mm ² and 60 mm ² , advantageously between 40 mm ² and 50 mm ² and, again advantageously, equal to 45 mm ² . The electronic assembly 3 is therefore cleverly designed to ensure transfer of electrical signals between the base 1 and the cap 2 as well as to ensure easy transport of the assembly.

Charging method

According to a fourth aspect, a method for charging an electronic plug 2 using a charging base 1 is proposed. The charging process aims to supply the battery 25 of the electronic cap 2 with electricity. Thus, with reference to FIG. 9, in a preliminary step (aO), the base 1 is connected to a source of electricity. More specifically, the base 1 is connected by its user to an electrical outlet via a cable connected to port 14 of the base 1.

Then, in a step (a), the electronic cap 2 is coupled with the charging base 1 so that the cap contactors 23 are opposite the base contactors 13 until the cap contactors 23 and the 13 corresponding plinth contactors. Thanks to the polarizers 15, 24, the user couples the electronic cap 2 with the charging base 1 in the only possible and desired position. The electronic cap 2 is therefore in a state of charge.

Then, in a step (b), a transfer of current between the charging base 1 and the electronic cap 2 is implemented. Preferably, the current transfer starts automatically after contacting the cap contactors 23 and the base contactors 13 at the end of step (a) of coupling.

In an optional step (c), a sensory signal is emitted alerting the user that the battery 25 of the cap 2 is fully recharged. A sensory signal can also be emitted during charging and depends on the state of charge of electronic cap 2.

Programming process

According to a fifth aspect, a method for programming an electronic cap 2 using a charging base 1 is proposed. According to this embodiment, the base 1 and the cap 2 each comprise a plurality of contactors 13, 23 intended for data transfer. The programming method has the primary purpose of programming the stopper 2 according to the desired use of the stopper 2 (for example in the case of iontophoresis). This programming therefore requires receiving data from plug 2 and sending data to plug 2. With reference to FIG. 10, in a step (a0), base 1 is connected to data processing means via port 14 of base 1. Typically, if port 14 is a USB port, a cable connects the data processing means to the base 1. The data processing means are for example a computer processor. First of all, in a step (a), the electronic cap 2 is coupled with the charging base 1 so that the cap contactors 23 are opposite the base contactors 13 until the cap contactors are brought into contact 23 and corresponding base contactors 13. The cap contactors 23 intended for data transfer are therefore opposite base contactors 13 intended for data transfer.

Then, in a step (b), a transfer of data is implemented between the charging base 1 and the electronic plug 2 charging base 1 thanks to the data processing means. This can make it possible to program cap 2 for the first time, to update cap 2 or even, for example, to correct a malfunction of cap 2.

The invention is not limited to the embodiment described and shown in the appended figures. Modifications remain possible, in particular from the point of view of the constitution of the various technical characteristics or by substitution of technical equivalents, without leaving general education.

Claims

1. Charging base (1) for an electronic cap (2) for cosmetic treatment of the skin, the charging base (1) being intended to be coupled with the electronic cap (2) by shape cooperation, the charging base (1) comprising a plurality of base contactors (13) intended to be electrically connected to cap contactors (23) in order at least to charge said electronic cap (2), the charging base (1) comprising at least one element magnetic base (11) configured to be in a magnetic attraction relationship with at least one magnetic cap element (22), in order to maintain the charging base (1) and the electronic cap (2) in the coupled position while ensuring a contact between the base contactors (13) and the corresponding cap contactors (23). 2. Charging base (1) according to claim 1, comprising a circular outer face (102) and wherein the base magnetic element (11) is positioned at the center of the circular outer face (102), the base contactors (13) being positioned at least partially on the periphery of the base magnetic element (11). 3. charging base (1) according to any one of claims 1 to 2, wherein the base magnetic element (11) is positioned in a base recess (12), the base recess (12) comprising further a shoulder (120) to prevent any contact between the magnetic base element (11) and the magnetic cap element (22). 4. Charging base (1) according to any one of claims 1 to 3, comprising two base contactors (13) intended to allow the transfer of electric current with two corresponding cap contactors (23). 5. Charging base (1) according to claim 4, further comprising at least one base contactor (13) intended to allow the transfer of data with a corresponding cap contactor (23). 6. Charging base (1) according to any one of claims 1 to 5, wherein each base contactor (13) comprises a contact element (131) mounted on a spring (132). 7. Charging cradle (1) according to any one of claims 1 to 6, comprising at least one, preferably a plurality of, polarizing base (15) configured (s) to ensure a single positioning of the cap (2) relative to the base (1) with the cap contactors (23) opposite the base contactors (13). 8. Charging base (1) according to claim 7, comprising at least three keyed base (15) arranged at different distances from each other. 9. Charging base (1) according to one of claims 7 and 8, wherein the base polarizers (15) are positioned on the periphery of the base magnetic element (11). 10. Charging base (1) according to any one of claims 1 to 9, comprising a sensory device indicating at least one state of the electronic cap (2) when the electronic cap (2) is connected to the base (1). 11. Charging base according to any one of claims 1 to 10, in which a geometric characteristic, a weight characteristic and/or the composition of the magnetic base element (11) are correlated to the weight of the cap (2) such that the force of attraction which is exerted between the magnetic base element (11) and the magnetic cap element (22) is between 5 times and 12 times a mass of the cap (2). 12. Electronic cap (2) for the cosmetic treatment of the skin configured to be removably connected to a reservoir of a cosmetic substance to be activated, the electronic cap (2) being intended to be coupled with a charging base (1 ) by shape cooperation, the electronic cap (2) comprising an electronic device including a battery (25) and a plurality of cap contactors (23) configured to be electrically connected to base contactors (13), the cap (2 ) comprising a cap magnetic element (22) configured to be in attracting relationship with a base magnetic element (11), in order to maintain the charging base (1) and the electronic cap (2) in a coupled position while ensuring contact between the base contactors (13) and the corresponding cap contactors (23) in order at least to charge said electronic cap (2). 13. Electronic plug (2) according to claim 12, in which the magnetic plug element (22) is intended to provide a function of fixing and holding in position a plurality of parts of the plug (2). 14. Electronic cap (2) according to any one of claims 12 and 13, comprising two cap contactors (23) intended to allow the transfer of electric current with two corresponding base contactors (13). 15. Electronic cap (2) according to claim 1, further comprising at least one cap contactor (23) intended to allow the transfer of data with a corresponding base contactor (13). 16. Electronic assembly (3) comprising a charging base (1) according to any one of claims 1 to 11 and an electronic plug (2) according to any one of claims 12 to 15, the electronic plug (2) being able to be detachably coupled to the charging base (1), the magnetic cap and base elements (11, 22) maintaining the charging base (1) and the electronic cap (2) in the coupled position while ensuring contact between the base contactors (13) and the cap contactors (23) in order at least to charge said electronic cap (2). 17. A method of charging an electronic cap (2) according to one of claims 12 to 15 using a charging base (1) according to one of claims 1 to 11 comprising the following steps: a) Coupling of the electronic cap (2) with the charging base (1) so that the cap contactors (23) face the base contactors (13) until the cap contactors (23) come into contact and corresponding plinth contactors (13); b) Transfer of current between the charging base (1) and the electronic plug (2), the transfer of current preferably starting automatically after the contacting of the plug contactors (23) and the base contactors (13) at the end of step a) of coupling. 18. Charging method according to claim 17, wherein a sensory signal is emitted by the charging base (1) according to at least one state of the electronic cap (2). 19. Method for exchanging data between an electronic cap (2) according to one of claims 12 to 15 using a charging base (1) according to one of claims 1 to 11, the electronic cap (2) and the charging base (1) each comprising at least one contactor (13, 23) intended for data transfer, comprising the following steps of: a) Coupling the electronic plug (2) with the charging base (1) so that the plug contactors (23 ) are opposite the base contactors (13) until contacting of the cap contactors (23) and the corresponding base contactors (13); b) Transfer of data between the charging base (1) and the electronic cap (2), and/or vice versa, implemented by data processing means.