EP3691487B1 - Wireless charging device for a connected shoe or sole - Google Patents

Wireless charging device for a connected shoe or sole Download PDF

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Publication number
EP3691487B1
EP3691487B1 EP18774075.8A EP18774075A EP3691487B1 EP 3691487 B1 EP3691487 B1 EP 3691487B1 EP 18774075 A EP18774075 A EP 18774075A EP 3691487 B1 EP3691487 B1 EP 3691487B1
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EP
European Patent Office
Prior art keywords
charging
shoe
coil
electronic module
sole
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EP18774075.8A
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German (de)
French (fr)
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EP3691487A1 (en
Inventor
Sylvain RISPAL
Denis Audoly
Alexandre TISSIERE
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TRAXXS
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Traxxs
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A43B3/38—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources

Definitions

  • the present invention relates to the field of wireless charging and relates more particularly to a device for wireless charging of a supply battery of an electronic module mounted in a shoe.
  • the invention aims in particular to allow the charging of a supply battery of an electronic module mounted in a shoe both easily and without connection between the charging device and the electronic module.
  • an electronic module is integrated, for example in the sole of the shoe, at the level of the heel.
  • Such an electronic module makes it possible to perform one or more functions.
  • the electronic module can make it possible to geolocate the wearer of the shoes or to measure his speed of movement.
  • the electronic module comprises an electric power supply battery enabling it to perform these functions.
  • the battery pack can be recharged in two ways: either using a power cable or using a wireless charger.
  • the power cable is connected on the one hand to the electrical network and on the other hand either to a connector mounted on the shoe, or directly to the electronic module.
  • a connector can modify the structure of the shoe and hamper the wearer.
  • the presence of a connector can lead to a lack of sealing of the electronic module, in particular to liquids and dust, which presents a significant drawback.
  • the power cable is plugged directly into the electronic module, it is necessary to remove the insole of the shoe, or even to remove the electronic module from the shoe to allow its battery to be charged, which presents significant drawbacks.
  • a wireless charging device for example by induction
  • the support comprises one or more charging coils while the electronic module comprises a so-called receiving coil, capable of receiving electrical energy from one of the charging coils of the support.
  • receiving coil capable of receiving electrical energy from one of the charging coils of the support.
  • Such positioning can prove to be particularly complex and tedious, which presents a significant drawback.
  • such a load support can turn out to be bulky and cumbersome, which has another drawback.
  • the document US2017 / 0150773 A1 discloses in particular such a support.
  • the invention firstly relates to a wireless charging device for a power supply battery of an electronic module mounted in a shoe, said electronic module comprising a receiving coil capable of receiving a signal from charge for charging said supply battery.
  • Said device is remarkable in that it comprises a body, adapted to be placed in an interior space of said shoe, having at least partially the shape of a heel of a human foot and at least partially conforming to the shape of said interior space.
  • a wireless charging module mounted in said body and comprising at least one charging coil mounted in the body of the device so as to allow wireless charging of said battery pack, via said receiver coil, when the device is in operation. placed in said interior space of the shoe.
  • the device according to the invention With the device according to the invention, it is no longer necessary to remove the sole or the electronic module of the shoe in order to be able to recharge the supply battery. This is particularly advantageous when the electronic module is mounted in the sole.
  • the shape of the device which at least partly matches the shape of the inside of the shoe, allows the device to be placed automatically in the internal space of the shoe so that it is an optimum load position of the shoe.
  • the power supply battery that is, so that the device's charging coil is aligned with the receiving coil of the shoe for optimal and fast charging.
  • the device according to the invention is advantageously of small dimensions and makes it possible to be placed as close as possible to the receiving coil of the electronic module for efficient charging of the supply battery.
  • the device is advantageously portable and can be easily placed in a handbag, a backpack or a suitcase.
  • the shoe comprising an outer sole, called a “walking sole”, and an inner sole, called a “foot sole”, arranged inside the shoe on the outer sole, the electronic module being mounted in said sole.
  • the body of the device comprises a lower wall, called “contact wall ", Intended to come into contact with the upper face of the inner sole, the load coil being mounted against the inner face of said lower wall so as to transmit energy through the contact wall when an electric current flows through the charging coil.
  • the body of the device has at least partly the shape of a heel of a human foot, which makes it possible to easily position the device in the shoe, at the level of the rear of the sole, then to easily remove the device.
  • the charging module includes a single charging coil to simplify the device.
  • the charging module can include multiple charging coils in order to increase the charging area, which facilitates alignment with the receiver coil and thereby improves wireless power transmission.
  • the device comprises at least one gripping means making it possible to insert and remove the device from the interior space of the boot.
  • the gripping means is in the form of a handle or a rod, allowing easy insertion and removal of the device in a shoe.
  • the gripping means may come from material of the body of the device or else attached to the body of the device.
  • the body of the device is made of a plastic material, light and resistant.
  • the body of the device comprises an upper part and a lower part, for example assembled by means of a system of bolts and nuts.
  • the device can thus be easily dismantled in order to carry out maintenance on the charging module.
  • the device comprises at least one means of connection to an electrical energy supply network to supply the wireless charging device.
  • this connection means is a wired means. More preferably, this wired means comprises a cable mounted so as to extend towards the top of the device, for example from the upper part of the body of the device, in order to leave the interior space of the boot in a straight line.
  • the term “high” is understood to mean substantially along the terrestrial vertical towards the sky when the device is in its position of use in the interior space of the boot.
  • the charging device may be devoid of wired means of connection to an electrical energy supply network and further comprise a battery, the charging coil then being configured to receive electrical energy transmitted by a support. wireless charging to recharge said battery when the charging device is placed on said charging stand. Such an operation makes it possible to charge the supply battery of the electronic module at any time, in particular in the absence of an external electrical network.
  • the battery of the charging device is mounted in the body or else on the body, for example in a removable manner.
  • the device comprises at least one means of displaying the wireless state of charge of the supply battery of the electronic module.
  • the wireless charging module comprises a printed circuit.
  • the printed circuit has a circular shape. In another embodiment, the printed circuit has an elliptical shape. In another embodiment, the printed circuit has a rectangular shape.
  • the charging coil is mounted coaxially with the printed circuit. This allows energy to be transmitted efficiently while allowing a slight rotation of the device around a vertical axis (i.e. parallel to the earth's vertical) in the shoe.
  • the charging coil may for example be circular, elliptical or rectangular.
  • the invention also relates to an electrical assembly comprising a shoe and a wireless charging device as presented above.
  • the shoe comprises an electronic module comprising a power supply battery and a receiving coil capable of allowing wireless charging of said power supply battery.
  • the device is mounted in said shoe so that the charging coil of the device is positioned in line with the receiving coil of the electronic module in order to allow wireless charging of said supply battery.
  • the device according to the invention is a wireless charging device making it possible to charge the supply battery of an electronic module mounted in a shoe.
  • wireless it is meant that the charging is carried out by wireless transmission of energy between the charging device and the electronic module of the shoe.
  • the charging is carried out by induction, for example using the “Qi” standard, but can of course be carried out by any other known method without departing from the scope of the present invention. Since the charge by induction is known per se, it will not be further detailed here.
  • FIG. 1 a shoe 1 able to cooperate with a device according to the invention and to figures 2 to 8 an example of device 2 according to the invention.
  • the device 2 is intended to be placed in the shoe 1 in order to allow wireless charging of the supply battery 110 of an electronic module 10 mounted in said shoe 1.
  • This shoe 1 in which an electronic module 10 is mounted, comprises from bottom to top an outer sole 1A called a “walking sole”, an inner sole 1B and an upper 1C.
  • the electronic module 10 is mounted in the sole assembly 1A, 1B of the shoe, preferably in a housing 1A-1 formed in the internal sole 1B (insole) as illustrated in the example of figure 1 .
  • the electronic module 10 could for example be mounted in a housing formed in the outer sole 1B, under the inner sole 1A.
  • the housing 1A-1 is located at the level of the heel 1D of the shoe 1. It will be noted that, as a variant, the electronic module 10 could be mounted at another location of the sole assembly 1A, 1 B, for example. at its middle part or before, or else be mounted under the internal sole 1B.
  • the electronic module 10 comprises a management unit 100, an electric power supply battery 110 and a receiver coil 120.
  • the management unit 100 comprises a microcontroller (not shown) configured to implement one or more functions.
  • the management unit 100 can include a gel localization sub-module (not shown), for example of the GPS (Global Positioning System) type, allowing the microcontroller to determine the geographical position of the electronic module 10, and therefore of the shoe 1.
  • the management unit 100 can include a sensor (not shown), for example of MEMS (MicroElectroMechanical Systems) type, allowing the microcontroller to determine the speed of movement of the wearer of the shoe 1. , etc.
  • MEMS MicroElectroMechanical Systems
  • the power supply battery 110 is configured to supply the management unit 100 with electrical energy in order to make it operate.
  • the receiving coil 120 is adapted to receive a wireless charging signal from the device 2 in order to recharge the supply battery 110 with electrical energy as will be explained below.
  • the receiving coil 120 extends in the shoe 1 so as to be able to receive a load signal emitted vertically and in its direction by the load device 2 when said device 2 is positioned in the shoe 1 like this.
  • the receiver coil 120 can have any shape suitable for wireless charging, for example circular or elliptical.
  • the wireless charging device 2 comprises a body 20, illustrated for example in figures 2 and 3 , and a wireless charging module 25, illustrated for example in figures 4 to 6 .
  • the body 20 is adapted to conform to an interior space 1E (shown in figure 1 ) of said shoe 1 delimited between the upper 1C and the internal sole 1B of the shoe 1 and located in line with the receiving coil 120 of the electronic module 10 of the shoe 1.
  • This internal space 1E corresponds in this example in part to the volume that 'would occupy the heel of a human foot wearing the shoe 1, this interior space 1E of the shoe 1 being easily accessible from the outside of the shoe 1.
  • the body 20 of the device 2 has at least partly the shape of a heel of a human foot so as to conform to the interior space 1E of the shoe 1.
  • the body 20 is preferably made of a plastic material, for example polycarbonate, and in this example comprises an upper part 20A and a lower part 20B.
  • the upper part 20A of the body 20 comprises at least one gripping means making it possible to insert and remove the device 2 from the interior space 1E of the boot 1.
  • this gripping means is made from material of the body 20.
  • this gripping means can be attached.
  • the gripping means can advantageously be in the form of a rod or a handle. In the embodiment illustrated in the figures 2, 3 , 7 and 8 , the gripping means is in the form of a handle 20A-1 made from material of the upper part 20A of the body 20.
  • the lower part 20B of the body 20, illustrated on figure 4 is configured to receive the wireless charging module 25 and to be placed on the insole 1B of the shoe 1.
  • the lower part 20B comprises a lower wall 20B1, called the “contact wall”, adapted to be placed on the upper face 1B1 of the sole internal 1B (with reference to figures 1 and 9 ).
  • this lower wall 20B1 can comprise non-slip means (not shown).
  • the wireless charging module 25 includes a management submodule 250 illustrated in figure 5 , and a charge coil 255, shown on figure 6 .
  • the wireless charging module 25 is mounted in the lower part 20B of the body 20 of the device 2. More precisely, the management submodule 250 and the charging coil 255 are mounted superimposed in the lower part 20B.
  • the charging coil 255 may have any shape suitable for wireless charging, for example circular or elliptical.
  • the management sub-module 250 is in the form of a printed circuit 250A, of circular shape, on which electronic components 250B are mounted.
  • the management submodule 250 makes it possible to manage the wireless transmission of energy through the charge coil 255 from an external energy source (not shown).
  • This energy source is preferably an external domestic electrical network, for example using a nominal voltage of between 100 V and 240 V.
  • the device 2 further comprises a wired means of connection to an external electrical network, in this example in the form of a socket 27A connected to the device 2 via an electrical cable 27B and comprising a transformer (not shown) of the type AC-DC, connected to said electric cable 27B (passing through the upper part 20A as shown in the figures 2 and 3 ) in order to convert the alternating current received from the external electrical network into a direct current defining a direct voltage included, for example between 3 V and 24 V to supply the components of the management submodule 250 and the load coil 255.
  • the cable electric 27B extends from the upper part of the body 20 of the device 2 upwards so as not to interfere with the positioning of the device 2 in the interior space 1E.
  • the body 20 defines both in the upper part 20A and in the lower part 20B an evacuation space 21 ( figures 7 and 8 ) and comprises heat dissipation orifices 22 in the upper part 20A of the body 20, illustrated on the figures 2 and 8 .
  • the charging coil 255 which is the energy emitting coil of the wireless charging device 2, is mounted under the printed circuit 250A of the load management submodule 250 so as to emit downward in the direction of the shoe 1.
  • the wireless charging module 25 comprises a single charging coil 255, without this limiting the scope of the present invention.
  • the charging coil 255 is annular in shape, and is fixed to the lower face 250A1 of the printed circuit 250A in a coaxial manner with said printed circuit 250A.
  • the charge coil 255 is positioned against the inner face 20B11 of the bottom wall 20B1 ( figure 8 ) so as to transmit the energy which it generates through said lower wall 20B1 when said charging coil 255 is traversed by an electric current.
  • the charging coil 255 is in contact with the interior face 20B11 of the lower wall 20B1.
  • the charging coil 255 could be spaced a few tenths of a millimeter, or even a few millimeters, from the interior wall 20B11.
  • the shapes of the printed circuit 250A and of the charging coil 255 could be different, for example of rectangular shape or the like.
  • the nature and the arrangement of the electronic components 250B mounted on the printed circuit 250A for the inductive charging being known per se, they will not be further detailed here.
  • the upper part 20A and the lower part 20B of the body 20 are assembled by means of a system of bolts and nuts 23. It goes without saying that any other suitable assembly system could be used. Likewise, it will be noted that the body 20 could comprise more or less than two parts 20A, 20B.
  • the shape of the body 20 of the device 2 allows a user to position said device 2 in the shoe 1 still substantially in the same position in which the charging coil 255 is positioned in line with the receiving coil 120 of the electronic module 10 mounted in the shoe 1.
  • the positioning of the device 2 in the shoe 1 will depend on the position of the receiving coil 120 of the electronic module 10. Also, the position of the coil load 255 in the body 20 of the device 2, and even thus the shape of the device, will depend above all on the position of the receiving coil 120 in the shoe 1 and will therefore have to be adapted accordingly.
  • the device 2 can comprise one or more means (not shown in this example) for displaying the wireless state of charge of the supply battery 110, for example one or more diodes indicating a state on charge and a state charged of the supply battery 110.
  • the charging device 2 may be devoid of wired means of connection to an external electrical network (socket 27A and electrical cable 27B) and further comprise a battery (mounted in the body 20 or of course the body 20, for example in a removable manner), the charging coil 255 then being configured to receive electrical energy transmitted by a wireless charging support when the charging device 1 is placed on said charging support.
  • an external electrical network such as, but not limited to, an Ethernet connection, a cord connection, or cord 27B, or a cord 27B, or further comprise a battery (mounted in the body 20 or of course the body 20, for example in a removable manner), the charging coil 255 then being configured to receive electrical energy transmitted by a wireless charging support when the charging device 1 is placed on said charging support.
  • each of the two shoes 1 can comprise an electronic module 10 and a charging device 2, placed inside each of the shoes 1.
  • a single shoe of the same pair could include an electronic module 10, then requiring a single charging device 2 to recharge the supply battery 110 of said electronic module 10.
  • the user of the shoe 1 wishes to charge the power supply battery 110 of the electronic module 10, he grasps the device 2 by its handle 20A-1 in order to place it inside the shoe 1, in the interior space 1E, in a step E1.
  • the shape of the body 20 of the device 2 then substantially matches the shape of the rear of the inside of the boot 1 so that the charging coil 255 is positioned directly to the right of the receiving coil 120 of the electronic module 10 of the boot. 1. This properly aligns the charge coil 255 with the take-up coil 120 for optimal and rapid recharging.
  • the user then connects, in a step E2, the charging device 1 to the supply network via the socket 27A and the cable 27B. Then, the management submodule 250 charges the power supply battery 110 of the electronic module 10 the shoe 1 by wireless transmission of electrical energy in a step E3.
  • step E4 the user again grasps the gripping means in order to remove each of the devices 2 from their respective shoes 1 (step E4) then disconnects the socket 27A from the electrical network in a step E5 if necessary.
  • steps 1 and 2 could be reversed as well as steps 4 and 5.
  • steps 1 and 5 are optional for the case where the socket 27A remains permanently connected to the external electrical network or else when the charging device comprises a battery making it autonomous as explained above.
  • the wireless charging device 2 according to the invention has the advantage of allowing precise positioning of the charging coil 255 with respect to the receiving coil 120 and therefore efficient charging of the supply battery 110.
  • the realization of the wireless charging by a device 2 of reduced size placed inside the shoe 1 advantageously makes it possible to avoid the use of a bulky and bulky charging support.
  • the wireless charging device 2 according to the invention makes it possible to avoid removing the sole or the electronic module 10 from the shoe 1 for charging.
  • the wireless charging device 2 according to the invention makes it possible to avoid the use of a cable to connect the electronic module and the electrical charging network.

Description

DOMAINE TECHNIQUE ET OBJET DE L'INVENTIONTECHNICAL FIELD AND SUBJECT OF THE INVENTION

La présente invention se rapporte au domaine de la charge sans fil et concerne plus particulièrement un dispositif de charge sans fil d'une batterie d'alimentation d'un module électronique monté dans une chaussure.The present invention relates to the field of wireless charging and relates more particularly to a device for wireless charging of a supply battery of an electronic module mounted in a shoe.

L'invention vise notamment à permettre la charge d'une batterie d'alimentation d'un module électronique monté dans une chaussure à la fois de manière aisée et sans connectique entre le dispositif de charge et le module électronique.The invention aims in particular to allow the charging of a supply battery of an electronic module mounted in a shoe both easily and without connection between the charging device and the electronic module.

ETAT DE LA TECHNIQUESTATE OF THE ART

De nos jours, on connaît un type de chaussure dans laquelle est intégré un module électronique, par exemple dans la semelle de la chaussure, au niveau du talon. Un tel module électronique permet de réaliser une ou plusieurs fonctions. A titre d'exemple, le module électronique peut permettre de géolocaliser le porteur des chaussures ou de mesurer sa vitesse de déplacement. A cette fin, le module électronique comprend une batterie d'alimentation en énergie électrique lui permettant de remplir ces fonctions. La batterie d'alimentation peut être rechargée de deux manières : soit à l'aide d'un câble d'alimentation, soit à l'aide d'un chargeur sans fil.Nowadays, a type of shoe is known in which an electronic module is integrated, for example in the sole of the shoe, at the level of the heel. Such an electronic module makes it possible to perform one or more functions. By way of example, the electronic module can make it possible to geolocate the wearer of the shoes or to measure his speed of movement. To this end, the electronic module comprises an electric power supply battery enabling it to perform these functions. The battery pack can be recharged in two ways: either using a power cable or using a wireless charger.

Le câble d'alimentation se branche d'une part sur le réseau électrique et d'autre part soit sur un connecteur monté sur la chaussure, soit directement sur le module électronique. L'utilisation d'un connecteur peut modifier la structure de la chaussure et en gêner le porteur. De plus, la présence d'un connecteur peut entrainer un défaut d'étanchéité du module électronique, notamment aux liquides et aux poussières, ce qui présente un inconvénient important. Dans le cas où le câble d'alimentation se branche directement sur le module électronique, il est nécessaire de retirer la semelle interne de la chaussure, voire de retirer le module électronique de la chaussure pour en permettre la charge de sa batterie, ce qui présente des inconvénients importants.The power cable is connected on the one hand to the electrical network and on the other hand either to a connector mounted on the shoe, or directly to the electronic module. The use of a connector can modify the structure of the shoe and hamper the wearer. In addition, the presence of a connector can lead to a lack of sealing of the electronic module, in particular to liquids and dust, which presents a significant drawback. In the event that the power cable is plugged directly into the electronic module, it is necessary to remove the insole of the shoe, or even to remove the electronic module from the shoe to allow its battery to be charged, which presents significant drawbacks.

Dans le cas d'un dispositif de charge sans fil, par exemple par induction, il est nécessaire de poser les chaussures ou les semelles sur un support de charge afin de recharger la batterie par transmission d'énergie sans fil. Le support comporte une ou plusieurs bobines de charge tandis que le module électronique comporte une bobine dite réceptrice, apte à recevoir de l'énergie électrique de l'une des bobines de charge du support. Cependant, dans cette solution, il est nécessaire de positionner les chaussures de manière très précise pour que chaque bobine de charge du support soit exactement en regard d'une bobine réceptrice d'un module électronique d'une chaussure. Un tel positionnement peut s'avérer particulièrement complexe et fastidieux, ce qui présente un inconvénient important. De plus, un tel support de charge peut s'avérer volumineux et encombrant, ce qui présente un autre inconvénient. Le document US2017/0150773 A1 divulgue notamment un tel support.In the case of a wireless charging device, for example by induction, it is necessary to place the shoes or the soles on a charging support in order to recharge the battery by wireless energy transmission. The support comprises one or more charging coils while the electronic module comprises a so-called receiving coil, capable of receiving electrical energy from one of the charging coils of the support. However, in this solution, it is necessary to position the shoes very precisely so that each charging coil of the support is exactly opposite a receiving coil of an electronic module of a shoe. Such positioning can prove to be particularly complex and tedious, which presents a significant drawback. In addition, such a load support can turn out to be bulky and cumbersome, which has another drawback. The document US2017 / 0150773 A1 discloses in particular such a support.

Il existe donc le besoin d'une solution simple, fiable et efficace permettant de charger la batterie d'alimentation d'un module électronique monté dans une chaussure afin de remédier au moins en partie à ces inconvénients.There is therefore a need for a simple, reliable and efficient solution making it possible to charge the supply battery of an electronic module mounted in a shoe in order to at least partially remedy these drawbacks.

PRESENTATION GENERALE DE L'INVENTIONGENERAL PRESENTATION OF THE INVENTION

A cet effet, l'invention a tout d'abord pour objet un dispositif de charge sans fil d'une batterie d'alimentation d'un module électronique monté dans une chaussure, ledit module électronique comprenant une bobine réceptrice apte à recevoir un signal de charge permettant de charger ladite batterie d'alimentation. Ledit dispositif est remarquable en ce qu'il comprend un corps, adapté pour être placé dans un espace intérieur de ladite chaussure, présentant au moins en partie la forme d'un talon de pied humain et épousant au moins en partie la forme dudit espace intérieur, et un module de charge sans fil monté dans ledit corps et comprenant au moins une bobine de charge montée dans le corps du dispositif de manière à permettre la charge sans fil de ladite batterie d'alimentation, via ladite bobine réceptrice, lorsque le dispositif est placé dans ledit espace intérieur de la chaussure.To this end, the invention firstly relates to a wireless charging device for a power supply battery of an electronic module mounted in a shoe, said electronic module comprising a receiving coil capable of receiving a signal from charge for charging said supply battery. Said device is remarkable in that it comprises a body, adapted to be placed in an interior space of said shoe, having at least partially the shape of a heel of a human foot and at least partially conforming to the shape of said interior space. , and a wireless charging module mounted in said body and comprising at least one charging coil mounted in the body of the device so as to allow wireless charging of said battery pack, via said receiver coil, when the device is in operation. placed in said interior space of the shoe.

Avec le dispositif selon l'invention, il n'est plus nécessaire d'enlever la semelle ou le module électronique de la chaussure pour pouvoir en recharger la batterie d'alimentation. Cela est particulièrement avantageux lorsque le module électronique est monté dans la semelle. De plus, la forme du dispositif, qui épouse au moins en partie la forme de l'intérieur de la chaussure, permet de placer le dispositif automatiquement dans l'espace intérieure de la chaussure de sorte qu'il soit une position optimale de charge de la batterie d'alimentation, c'est-à-dire de sorte que la bobine de charge du dispositif soit alignée avec la bobine réceptrice de la chaussure pour une charge optimale et rapide. Le dispositif selon l'invention est avantageusement de faibles dimensions et permet d'être placé au plus près de la bobine réceptrice du module électronique pour une charge efficace de la batterie d'alimentation. En outre, le dispositif est avantageusement portable et peut être aisément placé dans un sac à main, un sac à dos ou une valise.With the device according to the invention, it is no longer necessary to remove the sole or the electronic module of the shoe in order to be able to recharge the supply battery. This is particularly advantageous when the electronic module is mounted in the sole. In addition, the shape of the device, which at least partly matches the shape of the inside of the shoe, allows the device to be placed automatically in the internal space of the shoe so that it is an optimum load position of the shoe. the power supply battery, that is, so that the device's charging coil is aligned with the receiving coil of the shoe for optimal and fast charging. The device according to the invention is advantageously of small dimensions and makes it possible to be placed as close as possible to the receiving coil of the electronic module for efficient charging of the supply battery. Furthermore, the device is advantageously portable and can be easily placed in a handbag, a backpack or a suitcase.

De préférence, la chaussure comprenant une semelle externe, dite « semelle de marche », et une semelle interne, dite « semelle de pied », disposée à l'intérieur de la chaussure sur la semelle externe, le module électronique étant monté dans ladite semelle interne ou sous ladite semelle interne, le corps du dispositif comprend une paroi inférieure, dite « paroi de contact », destinée à venir en contact avec la face supérieure de la semelle interne, la bobine de charge étant montée contre la face intérieure de ladite paroi inférieure de manière à transmettre de l'énergie à travers la paroi de contact lorsque la bobine de charge est parcourue par un courant électrique. Un tel agencement permet d'optimiser la position de la bobine de charge par rapport à la bobine réceptrice et donc la charge de la batterie d'alimentation en la rendant plus efficace.Preferably, the shoe comprising an outer sole, called a "walking sole", and an inner sole, called a "foot sole", arranged inside the shoe on the outer sole, the electronic module being mounted in said sole. internal or under said internal sole, the body of the device comprises a lower wall, called "contact wall ", Intended to come into contact with the upper face of the inner sole, the load coil being mounted against the inner face of said lower wall so as to transmit energy through the contact wall when an electric current flows through the charging coil. Such an arrangement makes it possible to optimize the position of the charging coil with respect to the receiving coil and therefore the charging of the supply battery by making it more efficient.

Le corps du dispositif présente au moins en partie la forme d'un talon de pied humain, ce qui permet de positionner aisément le dispositif dans la chaussure, au niveau de l'arrière de la semelle, puis de retirer aisément le dispositif.The body of the device has at least partly the shape of a heel of a human foot, which makes it possible to easily position the device in the shoe, at the level of the rear of the sole, then to easily remove the device.

Dans une forme de réalisation, le module de charge comprend une unique bobine de charge afin de simplifier le dispositif. En variante, le module de charge peut comprendre plusieurs bobines de charge afin d'augmenter la surface de charge, ce qui facilite l'alignement avec la bobine réceptrice et améliore alors la transmission d'énergie sans fil.In one embodiment, the charging module includes a single charging coil to simplify the device. Alternatively, the charging module can include multiple charging coils in order to increase the charging area, which facilitates alignment with the receiver coil and thereby improves wireless power transmission.

Selon une caractéristique de l'invention, le dispositif comprend au moins un moyen de préhension permettant d'insérer et de retirer le dispositif de l'espace intérieur de la chaussure.According to one characteristic of the invention, the device comprises at least one gripping means making it possible to insert and remove the device from the interior space of the boot.

De préférence, le moyen de préhension se présente sous la forme d'une poignée ou d'une tige, permettant une insertion et un retrait aisé du dispositif dans une chaussure.Preferably, the gripping means is in the form of a handle or a rod, allowing easy insertion and removal of the device in a shoe.

Le moyen de préhension peut être issu de matière du corps du dispositif ou bien rapporté sur le corps du dispositif.The gripping means may come from material of the body of the device or else attached to the body of the device.

De manière avantageuse, le corps du dispositif est réalisé dans un matériau plastique, léger et résistant.Advantageously, the body of the device is made of a plastic material, light and resistant.

Dans une forme de réalisation, le corps du dispositif comprend une partie supérieure et une partie inférieure, par exemple assemblées au moyen d'un système de boulons et d'écrous. Le dispositif peut ainsi être aisément démonté pour effectuer la maintenance du module de charge.In one embodiment, the body of the device comprises an upper part and a lower part, for example assembled by means of a system of bolts and nuts. The device can thus be easily dismantled in order to carry out maintenance on the charging module.

Selon un aspect de l'invention, le dispositif comprend au moins un moyen de connexion à un réseau d'alimentation en énergie électrique pour alimenter le dispositif de charge sans fil.According to one aspect of the invention, the device comprises at least one means of connection to an electrical energy supply network to supply the wireless charging device.

De préférence, ce moyen de connexion est un moyen filaire. De préférence encore, ce moyen filaire comprend un câble monté de manière à s'étendre vers le haut du dispositif, par exemple depuis la partie supérieure du corps du dispositif, afin de sortir de l'espace intérieur de la chaussure en ligne droite. Par le terme « haut », on entend sensiblement selon la verticale terrestre en direction du ciel lorsque le dispositif est dans sa position d'utilisation dans l'espace intérieur de la chaussure.Preferably, this connection means is a wired means. More preferably, this wired means comprises a cable mounted so as to extend towards the top of the device, for example from the upper part of the body of the device, in order to leave the interior space of the boot in a straight line. The term “high” is understood to mean substantially along the terrestrial vertical towards the sky when the device is in its position of use in the interior space of the boot.

De manière alternative, le dispositif de charge peut être dépourvu de moyen filaire de connexion à un réseau d'alimentation en énergie électrique et comprendre en outre une batterie, la bobine de charge étant alors configurée pour recevoir de l'énergie électrique transmise par un support de charge sans fil afin de recharger ladite batterie lorsque le dispositif de charge est placé sur ledit support de charge. Un tel fonctionnement permet de réaliser la charge de la batterie d'alimentation du module électronique à tout moment, notamment en l'absence de réseau électrique externe.Alternatively, the charging device may be devoid of wired means of connection to an electrical energy supply network and further comprise a battery, the charging coil then being configured to receive electrical energy transmitted by a support. wireless charging to recharge said battery when the charging device is placed on said charging stand. Such an operation makes it possible to charge the supply battery of the electronic module at any time, in particular in the absence of an external electrical network.

Selon un aspect de l'invention, la batterie du dispositif de charge est montée dans le corps ou bien sur le corps, par exemple de manière amovible.According to one aspect of the invention, the battery of the charging device is mounted in the body or else on the body, for example in a removable manner.

Avantageusement, le dispositif comprend au moins un moyen de visualisation de l'état de charge sans fil de la batterie d'alimentation du module électronique.Advantageously, the device comprises at least one means of displaying the wireless state of charge of the supply battery of the electronic module.

Selon une caractéristique de l'invention, le module de charge sans fil comprend un circuit imprimé.According to one characteristic of the invention, the wireless charging module comprises a printed circuit.

Dans une forme de réalisation, le circuit imprimé présente une forme circulaire. Dans une autre forme de réalisation, le circuit imprimé présente une forme elliptique. Dans une autre forme de réalisation, le circuit imprimé présente une forme rectangulaire.In one embodiment, the printed circuit has a circular shape. In another embodiment, the printed circuit has an elliptical shape. In another embodiment, the printed circuit has a rectangular shape.

De manière avantageuse, la bobine de charge est montée de manière coaxiale avec le circuit imprimé. Cela permet de transmettre efficacement de l'énergie tout en autorisant une légère rotation du dispositif autour d'un axe vertical (i.e. parallèle à la verticale terrestre) dans la chaussure.Advantageously, the charging coil is mounted coaxially with the printed circuit. This allows energy to be transmitted efficiently while allowing a slight rotation of the device around a vertical axis (i.e. parallel to the earth's vertical) in the shoe.

La bobine de charge peut par exemple être de forme circulaire, elliptique ou rectangulaire.The charging coil may for example be circular, elliptical or rectangular.

L'invention concerne également un ensemble électrique comprenant une chaussure et un dispositif de charge sans fil tel que présenté précédemment. La chaussure comprend un module électronique comprenant une batterie d'alimentation et une bobine réceptrice apte à permettre la charge sans fil de ladite batterie d'alimentation. Le dispositif est monté dans ladite chaussure de sorte que la bobine de charge du dispositif soit positionnée au droit de la bobine réceptrice du module électronique afin de permettre la charge sans fil de ladite batterie d'alimentation.The invention also relates to an electrical assembly comprising a shoe and a wireless charging device as presented above. The shoe comprises an electronic module comprising a power supply battery and a receiving coil capable of allowing wireless charging of said power supply battery. The device is mounted in said shoe so that the charging coil of the device is positioned in line with the receiving coil of the electronic module in order to allow wireless charging of said supply battery.

PRESENTATION DES FIGURESPRESENTATION OF FIGURES

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et se référant aux dessins annexés donnés à titre d'exemples non limitatifs, dans lesquels des références identiques sont données à des objets semblables et sur lesquels :

  • la figure 1 est une vue schématique de côté en transparence d'un exemple de chaussure comprenant un module électronique ;
  • la figure 2 est une vue en perspective de trois quart et de dessus d'une forme de réalisation du dispositif selon l'invention ;
  • la figure 3 est une vue en perspective de trois quart et de dessous du dispositif de la figure 2;
  • la figure 4 est une vue en perspective de trois quart et de dessus de la partie inférieure du dispositif de la figure 2 ;
  • la figure 5 est une vue en perspective de trois quart et de dessus du circuit imprimé du module de charge du dispositif de la figure 2 ;
  • la figure 6 est une vue en perspective de trois quart et de dessous du circuit imprimé du module de charge du dispositif de la figure 2 ;
  • la figure 7 est une vue en perspective de trois quart et de dessous de la partie supérieure du dispositif de la figure 2 ;
  • la figure 8 est une vue partielle de côté en transparence du dispositif de la figure 2 ;
  • la figure 9 est une vue schématique partielle de côté en transparence de la chaussure de la figure 1 dans laquelle est monté le dispositif illustré à la figure 8 ;
  • la figure 10 illustre un mode de réalisation du procédé selon l'invention.
The invention will be better understood on reading the description which will follow, given solely by way of example, and referring to the appended drawings given by way of nonlimiting examples, in which identical references are given to similar objects. and on which:
  • the figure 1 is a schematic side view in transparency of an example of a shoe comprising an electronic module;
  • the figure 2 is a three-quarter perspective view from above of an embodiment of the device according to the invention;
  • the figure 3 is a three-quarter perspective view from below of the device of the figure 2 ;
  • the figure 4 is a three-quarter perspective view from above of the lower part of the device of the figure 2 ;
  • the figure 5 is a three-quarter perspective view from above of the printed circuit of the charging module of the device of the figure 2 ;
  • the figure 6 is a three-quarter perspective view from below of the printed circuit of the charging module of the device of the figure 2 ;
  • the figure 7 is a three-quarter perspective view from below of the upper part of the device of the figure 2 ;
  • the figure 8 is a partial side view in transparency of the device of the figure 2 ;
  • the figure 9 is a partial schematic side view in transparency of the shoe of the figure 1 in which is mounted the device shown in figure 8 ;
  • the figure 10 illustrates an embodiment of the method according to the invention.

Il faut noter que les figures exposent l'invention de manière détaillée pour mettre en oeuvre l'invention, lesdites figures pouvant bien entendu servir à mieux définir l'invention le cas échéant.It should be noted that the figures set out the invention in detail in order to implement the invention, said figures being able of course to serve to better define the invention if necessary.

DESCRIPTION DETAILLEE D'UNE FORME DE REALISATION DE L'INVENTIONDETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION

Le dispositif selon l'invention est un dispositif de charge sans fil permettant de charger la batterie d'alimentation d'un module électronique monté dans une chaussure. Par les termes « sans fil », on entend que la charge est réalisée par transmission d'énergie sans fil entre le dispositif de charge et le module électronique de la chaussure. De manière préférée, la charge est réalisée par induction, par exemple en utilisant le standard « Qi », mais peut bien entendu être réalisée par toute autre méthode connue sans sortir de la portée de la présente invention. La charge par induction étant connue en soi, elle ne sera pas davantage détaillée ici.The device according to the invention is a wireless charging device making it possible to charge the supply battery of an electronic module mounted in a shoe. By the terms “wireless”, it is meant that the charging is carried out by wireless transmission of energy between the charging device and the electronic module of the shoe. Preferably, the charging is carried out by induction, for example using the “Qi” standard, but can of course be carried out by any other known method without departing from the scope of the present invention. Since the charge by induction is known per se, it will not be further detailed here.

On a représenté à la figure 1 une chaussure 1 apte à coopérer avec un dispositif selon l'invention et aux figures 2 à 8 un exemple de dispositif 2 selon l'invention. Le dispositif 2 est destiné à être placé dans la chaussure 1 afin de permettre la charge sans fil de la batterie d'alimentation 110 d'un module électronique 10 monté dans ladite chaussure 1.We have represented at the figure 1 a shoe 1 able to cooperate with a device according to the invention and to figures 2 to 8 an example of device 2 according to the invention. The device 2 is intended to be placed in the shoe 1 in order to allow wireless charging of the supply battery 110 of an electronic module 10 mounted in said shoe 1.

On notera que l'invention peut s'appliquer de manière non limitative à tout type de chaussure 1 dans laquelle serait monté un module électronique 20.It will be noted that the invention can be applied without limitation to any type of shoe 1 in which an electronic module 20 would be mounted.

Chaussure 1Shoe 1

On a représenté à la figure 1 un exemple de chaussure 1. Cette chaussure 1, dans laquelle est monté un module électronique 10, comprend de bas en haut une semelle externe 1A dite « semelle de marche », une semelle interne 1B et une tige 1C.We have represented at the figure 1 an example of a shoe 1. This shoe 1, in which an electronic module 10 is mounted, comprises from bottom to top an outer sole 1A called a “walking sole”, an inner sole 1B and an upper 1C.

Le module électronique 10 est monté dans le semelage 1A, 1B de la chaussure, de préférence dans un logement 1A-1 formé dans la semelle interne 1B (première de propreté) comme illustré dans l'exemple de la figure 1. En variante, le module électronique 10 pourrait par exemple être monté dans un logement formé dans la semelle externe 1 B, sous la semelle interne 1A.The electronic module 10 is mounted in the sole assembly 1A, 1B of the shoe, preferably in a housing 1A-1 formed in the internal sole 1B (insole) as illustrated in the example of figure 1 . As a variant, the electronic module 10 could for example be mounted in a housing formed in the outer sole 1B, under the inner sole 1A.

Toujours dans cet exemple préféré, le logement 1A-1 est situé au niveau du talon 1D de la chaussure 1. On notera qu'en variante, le module électronique 10 pourrait être monté à un autre endroit du semelage 1A, 1 B, par exemple au niveau de sa partie médiane ou avant, ou bien encore être monté sous la semelle interne 1B.Still in this preferred example, the housing 1A-1 is located at the level of the heel 1D of the shoe 1. It will be noted that, as a variant, the electronic module 10 could be mounted at another location of the sole assembly 1A, 1 B, for example. at its middle part or before, or else be mounted under the internal sole 1B.

Toujours en référence à la figure 1, le module électronique 10 comprend une unité de gestion 100, une batterie d'alimentation 110 en énergie électrique et une bobine réceptrice 120.Still with reference to the figure 1 , the electronic module 10 comprises a management unit 100, an electric power supply battery 110 and a receiver coil 120.

Dans cet exemple, l'unité de gestion 100 comprend un microcontrôleur (non représenté) configuré pour mettre en œuvre une ou plusieurs fonctions. Par exemple, l'unité de gestion 100 peut comprendre un sous-module de gélocalisation (non représenté), par exemple de type GPS (Global Positioning System), permettant au microcontrôleur de déterminer la position géographique du module électronique 10, et donc de la chaussure 1. Toujours à titre d'exemple, l'unité de gestion 100 peut comprendre un capteur (non représenté), par exemple de type MEMS (MicroElectroMechanical Systems), permettant au microcontrôleur de déterminer la vitesse de déplacement du porteur de la chaussure 1, etc.In this example, the management unit 100 comprises a microcontroller (not shown) configured to implement one or more functions. For example, the management unit 100 can include a gel localization sub-module (not shown), for example of the GPS (Global Positioning System) type, allowing the microcontroller to determine the geographical position of the electronic module 10, and therefore of the shoe 1. Still by way of example, the management unit 100 can include a sensor (not shown), for example of MEMS (MicroElectroMechanical Systems) type, allowing the microcontroller to determine the speed of movement of the wearer of the shoe 1. , etc.

La batterie d'alimentation 110 est configurée pour alimenter l'unité de gestion 100 en énergie électrique afin de la faire fonctionner.The power supply battery 110 is configured to supply the management unit 100 with electrical energy in order to make it operate.

La bobine réceptrice 120 est apte à recevoir un signal de charge sans fil du dispositif 2 afin de recharger la batterie d'alimentation 110 en énergie électrique comme cela sera expliqué ci-après.The receiving coil 120 is adapted to receive a wireless charging signal from the device 2 in order to recharge the supply battery 110 with electrical energy as will be explained below.

A cette fin, la bobine réceptrice 120 s'étend dans la chaussure 1 de sorte à être apte à recevoir un signal de charge émis verticalement et dans sa direction par le dispositif 2 de charge lorsque ledit dispositif 2 est positionné dans la chaussure 1 comme cela sera expliqué ci-après. La bobine réceptrice 120 peut présenter toute forme adaptée pour la charge sans fil, par exemple circulaire ou elliptique.To this end, the receiving coil 120 extends in the shoe 1 so as to be able to receive a load signal emitted vertically and in its direction by the load device 2 when said device 2 is positioned in the shoe 1 like this. will be explained below. The receiver coil 120 can have any shape suitable for wireless charging, for example circular or elliptical.

Dispositif 2Device 2

Le dispositif 2 de charge sans fil comprend un corps 20, illustré par exemple aux figures 2 et 3, et un module de charge sans fil 25, illustré par exemple aux figures 4 à 6.The wireless charging device 2 comprises a body 20, illustrated for example in figures 2 and 3 , and a wireless charging module 25, illustrated for example in figures 4 to 6 .

Le corps 20 est adapté pour se conformer à un espace intérieur 1E (illustré sur la figure 1) de ladite chaussure 1 délimité entre la tige 1C et la semelle interne 1B de la chaussure 1 et situé au droit de la bobine réceptrice 120 du module électronique 10 de la chaussure 1. Cet espace intérieur 1E correspond dans cet exemple en partie au volume qu'occuperait le talon d'un pied humain porteur de la chaussure 1, cet espace intérieure 1E de la chaussure 1 étant aisément accessible depuis l'extérieur de la chaussure 1. Aussi, dans l'exemple illustré notamment aux figures 2 et 3, le corps 20 du dispositif 2 présente au moins en partie la forme d'un talon de pied humain de manière à se conformer à l'espace intérieur 1E de la chaussure 1.The body 20 is adapted to conform to an interior space 1E (shown in figure 1 ) of said shoe 1 delimited between the upper 1C and the internal sole 1B of the shoe 1 and located in line with the receiving coil 120 of the electronic module 10 of the shoe 1. This internal space 1E corresponds in this example in part to the volume that 'would occupy the heel of a human foot wearing the shoe 1, this interior space 1E of the shoe 1 being easily accessible from the outside of the shoe 1. Also, in the example illustrated in particular in figures 2 and 3 , the body 20 of the device 2 has at least partly the shape of a heel of a human foot so as to conform to the interior space 1E of the shoe 1.

En référence aux figures 2 et 3, le corps 20 est de préférence réalisé en un matériau plastique, par exemple en polycarbonate, et comprend dans cet exemple une partie supérieure 20A et une partie inférieure 20B.With reference to figures 2 and 3 , the body 20 is preferably made of a plastic material, for example polycarbonate, and in this example comprises an upper part 20A and a lower part 20B.

La partie supérieure 20A du corps 20 comprend au moins un moyen de préhension permettant d'insérer et de retirer le dispositif 2 de l'espace intérieur 1E de la chaussure 1. De préférence, ce moyen de préhension est issu de matière du corps 20. En variante, ce moyen de préhension peut être rapporté. Le moyen de préhension peut se présenter avantageusement sous la forme d'une tige ou d'une poignée. Dans la forme de réalisation illustrée sur les figures 2, 3, 7 et 8, le moyen de préhension se présente sous la forme d'une poignée 20A-1 issue de matière de la partie supérieure 20A du corps 20.The upper part 20A of the body 20 comprises at least one gripping means making it possible to insert and remove the device 2 from the interior space 1E of the boot 1. Preferably, this gripping means is made from material of the body 20. As a variant, this gripping means can be attached. The gripping means can advantageously be in the form of a rod or a handle. In the embodiment illustrated in the figures 2, 3 , 7 and 8 , the gripping means is in the form of a handle 20A-1 made from material of the upper part 20A of the body 20.

La partie inférieure 20B du corps 20, illustrée à la figure 4, est configurée pour recevoir le module de charge sans fil 25 et pour être placée sur la semelle interne 1B de la chaussure 1. A cette fin, en référence à la figure 3, la partie inférieure 20B comprend une paroi inférieure 20B1, dite « paroi de contact », adaptée pour être placée sur la face supérieure 1B1 de la semelle interne 1B (en référence aux figures 1 et 9). De manière avantageuse, cette paroi inférieure 20B1 peut comprendre des moyens antidérapants (non représentés).The lower part 20B of the body 20, illustrated on figure 4 , is configured to receive the wireless charging module 25 and to be placed on the insole 1B of the shoe 1. To this end, with reference to the figure 3 , the lower part 20B comprises a lower wall 20B1, called the “contact wall”, adapted to be placed on the upper face 1B1 of the sole internal 1B (with reference to figures 1 and 9 ). Advantageously, this lower wall 20B1 can comprise non-slip means (not shown).

Le module de charge sans fil 25 comprend un sous-module de gestion 250 illustré sur la figure 5, et une bobine de charge 255, illustrée sur la figure 6. Dans cet exemple préféré, comme illustré sur la figure 4, le module de charge sans fil 25 est monté dans la partie inférieure 20B du corps 20 du dispositif 2. Plus précisément, le sous-module de gestion 250 et la bobine de charge 255 sont montés de manière superposée dans la partie inférieure 20B. La bobine de charge 255 peut présenter toute forme adaptée pour la charge sans fil, par exemple circulaire ou elliptique.The wireless charging module 25 includes a management submodule 250 illustrated in figure 5 , and a charge coil 255, shown on figure 6 . In this preferred example, as shown in figure 4 , the wireless charging module 25 is mounted in the lower part 20B of the body 20 of the device 2. More precisely, the management submodule 250 and the charging coil 255 are mounted superimposed in the lower part 20B. The charging coil 255 may have any shape suitable for wireless charging, for example circular or elliptical.

En référence à la figure 5, le sous-module de gestion 250 se présente sous la forme d'un circuit imprimé 250A, de forme circulaire, sur lequel sont montés des composants électroniques 250B. Le sous-module de gestion 250 permet de gérer la transmission sans fil d'énergie à travers la bobine de charge 255 à partir d'une source d'énergie externe (non représentée). Cette source d'énergie est de préférence un réseau électrique externe domestique, utilisant par exemple une tension nominale comprise entre 100 V et 240 V.With reference to the figure 5 , the management sub-module 250 is in the form of a printed circuit 250A, of circular shape, on which electronic components 250B are mounted. The management submodule 250 makes it possible to manage the wireless transmission of energy through the charge coil 255 from an external energy source (not shown). This energy source is preferably an external domestic electrical network, for example using a nominal voltage of between 100 V and 240 V.

A cette fin, dans la forme de réalisation illustrée aux figures 2 et 3, le dispositif 2 comprend en outre un moyen filaire de connexion à un réseau électrique externe, se présentant dans cet exemple sous la forme d'une prise 27A reliée au dispositif 2 via un câble électrique 27B et comprenant un transformateur (non représenté) de type AC-DC, connecté audit câble électrique 27B (traversant la partie supérieure 20A comme illustré sur les figures 2 et 3) afin de convertir le courant alternatif reçu du réseau électrique externe en un courant continu définissant une tension continue comprise, par exemple entre 3 V et 24 V pour alimenter les composants du sous-module de gestion 250 et la bobine de charge 255. Le câble électrique 27B s'étend depuis la partie supérieure du corps 20 du dispositif 2 vers le haut afin de ne pas gêner le positionnement du dispositif 2 dans l'espace intérieur 1E.To this end, in the embodiment illustrated in figures 2 and 3 , the device 2 further comprises a wired means of connection to an external electrical network, in this example in the form of a socket 27A connected to the device 2 via an electrical cable 27B and comprising a transformer (not shown) of the type AC-DC, connected to said electric cable 27B (passing through the upper part 20A as shown in the figures 2 and 3 ) in order to convert the alternating current received from the external electrical network into a direct current defining a direct voltage included, for example between 3 V and 24 V to supply the components of the management submodule 250 and the load coil 255. The cable electric 27B extends from the upper part of the body 20 of the device 2 upwards so as not to interfere with the positioning of the device 2 in the interior space 1E.

Afin d'évacuer la chaleur produite par la bobine de charge 255 et les composants électroniques 250B, le corps 20 délimite à la fois dans la partie supérieure 20A et dans la partie inférieure 20B un espace 21 d'évacuation (figures 7 et 8) et comprend des orifices 22 d'évacuation de la chaleur dans la partie supérieure 20A du corps 20, illustrés sur les figures 2 et 8.In order to evacuate the heat produced by the charging coil 255 and the electronic components 250B, the body 20 defines both in the upper part 20A and in the lower part 20B an evacuation space 21 ( figures 7 and 8 ) and comprises heat dissipation orifices 22 in the upper part 20A of the body 20, illustrated on the figures 2 and 8 .

En référence aux figures 4 à 6 et 8, la bobine de charge 255, qui est la bobine émettrice d'énergie du dispositif 2 de charge sans fil, est montée sous le circuit imprimé 250A du sous-module de gestion de la charge 250 de manière à émettre vers le bas en direction de la chaussure 1. Dans la forme de réalisation illustrée, le module de charge sans fil 25 comprend une unique bobine de charge 255, sans que cela ne soit limitatif de la portée de la présente invention. Dans cet exemple, la bobine de charge 255 est de forme annulaire, et est fixée sur la face inférieure 250A1 du circuit imprimé 250A de manière coaxiale avec ledit circuit imprimé 250A. La bobine de charge 255 est positionnée contre la face intérieure 20B11 de la paroi inférieure 20B1 (figure 8) de manière à transmettre l'énergie qu'elle génère à travers ladite paroi inférieure 20B1 lorsque ladite bobine de charge 255 est parcourue par un courant électrique. De manière préférée, la bobine de charge 255 est au contact de la face intérieure 20B11 de la paroi inférieure 20B1. En variante, la bobine de charge 255 pourrait être espacée de quelques dixièmes de millimètre, voire de quelques millimètres de la paroi intérieure 20B11.With reference to figures 4 to 6 and 8 , the charging coil 255, which is the energy emitting coil of the wireless charging device 2, is mounted under the printed circuit 250A of the load management submodule 250 so as to emit downward in the direction of the shoe 1. In the illustrated embodiment, the wireless charging module 25 comprises a single charging coil 255, without this limiting the scope of the present invention. In this example, the charging coil 255 is annular in shape, and is fixed to the lower face 250A1 of the printed circuit 250A in a coaxial manner with said printed circuit 250A. The charge coil 255 is positioned against the inner face 20B11 of the bottom wall 20B1 ( figure 8 ) so as to transmit the energy which it generates through said lower wall 20B1 when said charging coil 255 is traversed by an electric current. Preferably, the charging coil 255 is in contact with the interior face 20B11 of the lower wall 20B1. As a variant, the charging coil 255 could be spaced a few tenths of a millimeter, or even a few millimeters, from the interior wall 20B11.

On notera qu'en variante, les formes du circuit imprimé 250A et de la bobine de charge 255 pourraient être différentes, par exemple de forme rectangulaire ou autre. De plus, la nature et l'agencement des composants électroniques 250B montés sur le circuit imprimé 250A pour la charge par induction étant connus en soi, ils ne seront pas davantage détaillés ici.It will be noted that as a variant, the shapes of the printed circuit 250A and of the charging coil 255 could be different, for example of rectangular shape or the like. Moreover, the nature and the arrangement of the electronic components 250B mounted on the printed circuit 250A for the inductive charging being known per se, they will not be further detailed here.

Comme illustré sur les figures 2, 3 et 8, la partie supérieure 20A et la partie inférieure 20B du corps 20 sont assemblées au moyen d'un système de boulons et d'écrous 23. Il va de soi que tout autre système d'assemblage adapté pourrait être utilisé. De même, on notera que le corps 20 pourrait comprendre plus ou moins de deux parties 20A, 20B.As shown on figures 2, 3 and 8 , the upper part 20A and the lower part 20B of the body 20 are assembled by means of a system of bolts and nuts 23. It goes without saying that any other suitable assembly system could be used. Likewise, it will be noted that the body 20 could comprise more or less than two parts 20A, 20B.

La forme du corps 20 du dispositif 2 permet à un utilisateur de positionner ledit dispositif 2 dans la chaussure 1 toujours sensiblement dans une même position dans laquelle la bobine de charge 255 se positionne au droit de la bobine réceptrice 120 du module électronique 10 monté dans la chaussure 1.The shape of the body 20 of the device 2 allows a user to position said device 2 in the shoe 1 still substantially in the same position in which the charging coil 255 is positioned in line with the receiving coil 120 of the electronic module 10 mounted in the shoe 1.

Pour une charge efficace de la batterie d'alimentation 110 du module électronique 10, il apparaît évident que le positionnement du dispositif 2 dans la chaussure 1 dépendra de la position de la bobine réceptrice 120 du module électronique 10. Aussi, la position de la bobine de charge 255 dans le corps 20 du dispositif 2, voire ainsi la forme du dispositif, dépendra avant tout de la position de la bobine réceptrice 120 dans la chaussure 1 et devra donc être adapté en conséquence.For efficient charging of the power supply battery 110 of the electronic module 10, it appears obvious that the positioning of the device 2 in the shoe 1 will depend on the position of the receiving coil 120 of the electronic module 10. Also, the position of the coil load 255 in the body 20 of the device 2, and even thus the shape of the device, will depend above all on the position of the receiving coil 120 in the shoe 1 and will therefore have to be adapted accordingly.

Afin de visualiser l'état de charge de la batterie d'alimentation 110, le dispositif 2 peut comprendre un ou plusieurs moyens (non représentés dans cet exemple) de visualisation de l'état de charge sans fil de la batterie d'alimentation 110, par exemple une ou plusieurs diodes indiquant un état en charge et un état chargé de la batterie d'alimentation 110.In order to display the state of charge of the supply battery 110, the device 2 can comprise one or more means (not shown in this example) for displaying the wireless state of charge of the supply battery 110, for example one or more diodes indicating a state on charge and a state charged of the supply battery 110.

Dans une forme de réalisation alternative (non illustrée), le dispositif 2 de charge peut être dépourvu de moyen filaire de connexion à un réseau électrique externe (prise 27A et câble électrique 27B) et comprendre en outre une batterie (montée dans le corps 20 ou bien sur le corps 20, par exemple de manière amovible), la bobine de charge 255 étant alors configurée pour recevoir de l'énergie électrique transmise par un support de charge sans fil lorsque le dispositif 1 de charge est placé sur ledit support de charge. Un tel fonctionnement permet de réaliser la charge de la batterie d'alimentation 110 à tout moment, notamment en l'absence de réseau électrique externe.In an alternative embodiment (not shown), the charging device 2 may be devoid of wired means of connection to an external electrical network (socket 27A and electrical cable 27B) and further comprise a battery (mounted in the body 20 or of course the body 20, for example in a removable manner), the charging coil 255 then being configured to receive electrical energy transmitted by a wireless charging support when the charging device 1 is placed on said charging support. Such an operation makes it possible to charge the supply battery 110 at any time, in particular in the absence of an external electrical network.

Mise en œuvreImplementation

On a représenté à la figure 10 un exemple d'ensemble électrique comprenant une chaussure 1, comprenant un module électronique 10 tel que décrit précédemment, et un dispositif 2 de charge, placé dans ladite chaussure 1.We have represented at the figure 10 an example of an electrical assembly comprising a shoe 1, comprising an electronic module 10 as described above, and a charging device 2, placed in said shoe 1.

Dans le cas d'une paire de chaussure 1, une seule chaussure 1 ou bien chacune des deux chaussures 1 peut comprendre un module électronique 10 et un dispositif 2 de charge, placés à l'intérieur de chacune des chaussures 1. De manière alternative, une seule chaussure d'une même paire pourrait comprend un module électronique 10, nécessitant alors un seul dispositif 2 de charge pour recharger la batterie d'alimentation 110 dudit module électronique 10.In the case of a pair of shoes 1, a single shoe 1 or else each of the two shoes 1 can comprise an electronic module 10 and a charging device 2, placed inside each of the shoes 1. Alternatively, a single shoe of the same pair could include an electronic module 10, then requiring a single charging device 2 to recharge the supply battery 110 of said electronic module 10.

En référence à la figure 10, lorsque l'utilisateur de la chaussure 1 souhaite réaliser la charge de la batterie d'alimentation 110 du module électronique 10, il saisit le dispositif 2 par sa poignée 20A-1 afin de le placer à l'intérieur de la chaussure 1, dans l'espace intérieur 1E, dans une étape E1. La forme du corps 20 du dispositif 2 épouse alors sensiblement la forme de l'arrière de l'intérieur de la chaussure 1 de sorte que la bobine de charge 255 se positionne directement au droit de la bobine réceptrice 120 du module électronique 10 de la chaussure 1. Ceci permet d'aligner correctement la bobine de charge 255 avec la bobine réceptrice 120 pour une recharge optimale et rapide.With reference to the figure 10 , when the user of the shoe 1 wishes to charge the power supply battery 110 of the electronic module 10, he grasps the device 2 by its handle 20A-1 in order to place it inside the shoe 1, in the interior space 1E, in a step E1. The shape of the body 20 of the device 2 then substantially matches the shape of the rear of the inside of the boot 1 so that the charging coil 255 is positioned directly to the right of the receiving coil 120 of the electronic module 10 of the boot. 1. This properly aligns the charge coil 255 with the take-up coil 120 for optimal and rapid recharging.

L'utilisateur connecte ensuite, dans une étape E2, le dispositif 1 de charge au réseau d'alimentation via la prise 27A et le câble 27B. Ensuite, le sous-module de gestion 250 charge la batterie d'alimentation 110 du module électronique 10 la chaussure 1 par transmission d'énergie électrique sans fil dans une étape E3.The user then connects, in a step E2, the charging device 1 to the supply network via the socket 27A and the cable 27B. Then, the management submodule 250 charges the power supply battery 110 of the electronic module 10 the shoe 1 by wireless transmission of electrical energy in a step E3.

Une fois la charge réalisée, l'utilisateur saisit de nouveau le moyen de préhension afin de retirer chacun des dispositifs 2 de leur chaussure 1 respective (étape E4) puis déconnecte la prise 27A du réseau électrique dans une étape E5 le cas échéant.Once the charge has been carried out, the user again grasps the gripping means in order to remove each of the devices 2 from their respective shoes 1 (step E4) then disconnects the socket 27A from the electrical network in a step E5 if necessary.

On notera que les étapes 1 et 2 pourraient être inversées de même que les étapes 4 et 5. De même, on notera que les étapes 1 et 5 sont optionnelles pour le cas où la prise 27A reste connectée en permanence au réseau électrique externe ou bien lorsque le dispositif de charge comprend une batterie le rendant autonome comme expliqué ci-avant.It will be noted that steps 1 and 2 could be reversed as well as steps 4 and 5. Likewise, it will be noted that steps 1 and 5 are optional for the case where the socket 27A remains permanently connected to the external electrical network or else when the charging device comprises a battery making it autonomous as explained above.

Le dispositif 2 de charge sans fil selon l'invention présente l'avantage de permettre un positionnement précis de la bobine de charge 255 par rapport à la bobine réceptrice 120 et donc une charge efficace de la batterie d'alimentation 110. La réalisation de la charge sans fil par un dispositif 2 de taille réduite placé à l'intérieur de la chaussure 1 permet avantageusement d'éviter l'utilisation d'un support de charge volumineux et encombrant. De plus, le dispositif 2 de charge sans fil selon l'invention permet d'éviter de sortir la semelle ou le module électronique 10 de la chaussure 1 pour la charge. Enfin, le dispositif 2 de charge sans fil selon l'invention permet d'éviter l'utilisation d'un câble pour relier le module électronique et le réseau électrique de charge.The wireless charging device 2 according to the invention has the advantage of allowing precise positioning of the charging coil 255 with respect to the receiving coil 120 and therefore efficient charging of the supply battery 110. The realization of the wireless charging by a device 2 of reduced size placed inside the shoe 1 advantageously makes it possible to avoid the use of a bulky and bulky charging support. In addition, the wireless charging device 2 according to the invention makes it possible to avoid removing the sole or the electronic module 10 from the shoe 1 for charging. Finally, the wireless charging device 2 according to the invention makes it possible to avoid the use of a cable to connect the electronic module and the electrical charging network.

Claims (9)

  1. A device (2) for wirelessly charging a power supply battery (110) of an electronic module (10) mounted in a shoe (1), said electronic module (10) comprising a receiver coil (120) capable of receiving a charging signal for charging said power supply battery (110), said device (2) being characterised in that it comprises a body (20), adapted to be placed into an internal space (1E) of said shoe (1), having at least partly the shape of a human foot heel and at least partly snugly fitting the shape of said internal space (1E), and a wireless charging module (25) mounted in said body (20) and comprising at least one charging coil (255) mounted in the body (20) of the device (2) so as to enable wireless charging of said power supply battery (110), via said receiver coil (120), when the device (2) is placed in said internal space (1E) of the shoe (1).
  2. The device (2) according to claim 1, wherein the shoe (1) comprising an outer sole (1A) and an inner sole (1B), disposed inside the shoe (1) on the outer sole (1A), the electronic module (10) being mounted in said inner sole (1B), the body (20) of the device (2) comprises a lower wall (20B1) for contacting the upper face (1B1) of the inner sole (1B), the charging coil (255) being mounted against the internal face (20B11) of said lower wall (20B1) so as to transmit energy through said lower wall (20B1) when the charging coil (255) has an electric current passing therethrough.
  3. The device (2) according to one of the preceding claims, wherein the charging module (25) comprises a single charging coil (255).
  4. The device (2) according to one of the preceding claims, comprising at least one gripping means (20A-1) for inserting and removing the device (2) into and from the internal space (1E) of the shoe (1).
  5. The device (2) according to one of the preceding claims, comprising at least one means (27A, 27B) for connecting to an electric power supply network.
  6. The device (2) according to one of the preceding claims, comprising at least one means for viewing the state of wireless charge of the power supply battery (110).
  7. The device (2) according to one of the preceding claims, wherein the wireless charging module (25) comprises a printed circuit (250A).
  8. The device (2) according to the preceding claim, wherein the printed circuit (250A) has a circular shape.
  9. The device (2) according to the preceding claim, wherein the charging coil (255) is circular and is mounted coaxially with the printed circuit (250A).
EP18774075.8A 2017-10-03 2018-10-01 Wireless charging device for a connected shoe or sole Active EP3691487B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1771047A FR3071707B1 (en) 2017-10-03 2017-10-03 WIRELESS CHARGING DEVICE FOR CONNECTED SHOE OR SOLE
PCT/EP2018/076638 WO2019068637A1 (en) 2017-10-03 2018-10-01 Wireless charging device for a connected shoe or sole

Publications (2)

Publication Number Publication Date
EP3691487A1 EP3691487A1 (en) 2020-08-12
EP3691487B1 true EP3691487B1 (en) 2021-08-18

Family

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Application Number Title Priority Date Filing Date
EP18774075.8A Active EP3691487B1 (en) 2017-10-03 2018-10-01 Wireless charging device for a connected shoe or sole

Country Status (3)

Country Link
EP (1) EP3691487B1 (en)
FR (1) FR3071707B1 (en)
WO (1) WO2019068637A1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017095945A1 (en) * 2015-11-30 2017-06-08 Nike Innovate C.V. Article of footwear and charging system

Also Published As

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WO2019068637A1 (en) 2019-04-11
FR3071707A1 (en) 2019-04-05
EP3691487A1 (en) 2020-08-12
FR3071707B1 (en) 2020-07-31

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