EP3691487A1 - Wireless charging device for a connected shoe or sole - Google Patents

Wireless charging device for a connected shoe or sole

Info

Publication number
EP3691487A1
EP3691487A1 EP18774075.8A EP18774075A EP3691487A1 EP 3691487 A1 EP3691487 A1 EP 3691487A1 EP 18774075 A EP18774075 A EP 18774075A EP 3691487 A1 EP3691487 A1 EP 3691487A1
Authority
EP
European Patent Office
Prior art keywords
shoe
charging
coil
electronic module
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18774075.8A
Other languages
German (de)
French (fr)
Other versions
EP3691487B1 (en
Inventor
Sylvain RISPAL
Denis Audoly
Alexandre TISSIERE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRAXXS
Original Assignee
Traxxs
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Traxxs filed Critical Traxxs
Publication of EP3691487A1 publication Critical patent/EP3691487A1/en
Application granted granted Critical
Publication of EP3691487B1 publication Critical patent/EP3691487B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 wireless charging device of a battery for powering an electronic module mounted in a shoe.
  • the invention aims in particular to allow the charging of a battery pack of an electronic module mounted in a shoe both easily and without connection between the charging device and the electronic module.
  • the 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 fulfill 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 on a connector mounted on the shoe, or directly on the electronic module.
  • a connector can change the structure of the shoe and annoy the wearer.
  • the presence of a connector may cause a leakage of the electronic module, including liquids and dust, which has a significant drawback.
  • the power cable connects directly to the electronic module, it is necessary to remove the inner sole of the shoe, or even to remove the electronic module of the shoe to allow the charging of its battery, which presents significant disadvantages.
  • 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, adapted to receive electrical energy from one of the load coils of the support.
  • receiving coil adapted to receive electrical energy from one of the load coils of the support.
  • a load support can be bulky and bulky, which has another drawback.
  • the invention firstly relates to a wireless charging device of a battery for powering an electronic module mounted in a shoe, said electronic module comprising a receiver coil adapted to receive a charge signal for charging said battery pack.
  • Said device is remarkable in that it comprises a body, adapted to be placed in an interior space of said shoe and conforming at least partly to the shape of said interior space, and a wireless charging module mounted in said body and comprising minus a charging coil mounted in the body of the device so as to allow the wireless charging of said battery pack, via said receiver coil, when the device is placed in said interior space of the boot.
  • 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 to be able to recharge the battery pack. This is particularly advantageous when the electronic module is mounted in the sole.
  • the shape of the device which at least partially matches the shape of the inside of the shoe, allows to place the device automatically in the interior space of the shoe so that it is an optimal position of load of the battery pack, that is to say, so that the charging coil of the device is aligned with the receiving coil of the shoe for an optimal and fast charge.
  • the device according to the invention is advantageously of small dimensions and can be placed as close to the receiver coil of the electronic module for an effective charge of the battery pack.
  • the device is advantageously portable and can be easily placed in a purse, a backpack or a suitcase.
  • the shoe comprising an outsole, said “outsole”, and an insole, said “foot sole” disposed inside the shoe on the outsole, the electronic module being mounted in said insole or under said insole, the body of the device comprises a lower wall, called “contact wall”, intended to come into contact with the upper face of the insole, the charging coil being mounted against the inner face of said lower wall so as to transmit the energy through the contact wall when the charging coil is traversed by an electric current.
  • contact wall intended to come into contact with the upper face of the insole
  • the charging coil being mounted against the inner face of said lower wall so as to transmit the energy through the contact wall when the charging coil is traversed by an electric current.
  • the body of the device has at least partly the shape of a human heel, which allows to easily position the device in the shoe, at the rear of the sole, and then remove the device easily.
  • the charging module comprises a single charging coil to simplify the device.
  • the charging module may include a plurality of charging coils to increase the charging surface, which facilitates alignment with the receiver coil and then improves the wireless power transmission.
  • the device comprises at least one gripping means for inserting and removing the device from the interior space of the shoe.
  • the gripping means is in the form of a handle or a rod, allowing insertion and easy removal of the device in a shoe.
  • the gripping means may be derived from material of the body of the device or attached to the body of the device.
  • the body of the device is made of a plastic material, lightweight and resistant.
  • the body of the device comprises an upper portion and a lower portion, for example assembled by means of a system of bolts and nuts.
  • the device can thus be easily dismantled to carry out the maintenance of the load module.
  • the device comprises at least one connection means to an electrical power supply network for supplying the wireless charging device.
  • this connection means is a wired means. More preferably, this wire 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 exit the interior space of the boot in a straight line.
  • the charging device may be devoid of wired means of connection to an electrical power supply network and further comprise a battery, the charge coil being then configured to receive the transmitted electrical energy. by a wireless charging medium to recharge said battery when the charging device is placed on said charging medium. Such an operation makes it possible to charge the electronic module power supply battery 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 on the body, for example removably.
  • the device comprises at least one means for displaying the wireless state of charge of the electronic module power supply battery.
  • 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 effectively transmits energy while allowing a slight rotation of the device about a vertical axis (i.e. parallel to the earth's vertical) in the shoe.
  • the charging coil may for example be of circular, elliptical or rectangular shape.
  • the invention also relates to an electrical assembly comprising a shoe and a wireless charging device as previously described.
  • the shoe includes an electronic module comprising a battery pack and a receiver coil adapted to allow the wireless charging of said battery pack.
  • 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 to allow wireless charging of said battery pack.
  • FIG. 2 is a perspective view of three quarters and above of an embodiment of the device according to the invention.
  • FIG. 3 is a perspective view of three quarter and bottom of the device of Figure 2;
  • FIG. 4 is a three-quarter perspective view from above of the lower part of the device of FIG. 2;
  • FIG. 5 is a three-quarter perspective view from above of the printed circuit of the charging module of the device of FIG. 2;
  • FIG. 6 is a perspective view of three quarters and below of the printed circuit of the charging module of the device of FIG. 2;
  • FIG. 7 is a perspective view three quarters and below of the upper part of the device of FIG. 2;
  • FIG. 8 is a partial side view in transparency of the device of Figure 2;
  • FIG. 9 is a partial schematic side view in transparency of the shoe of FIG. 1 in which the device illustrated in FIG. 8 is mounted;
  • FIG. 10 illustrates an embodiment of the method according to the invention.
  • the device according to the invention is a wireless charging device for charging the battery pack of an electronic module mounted in a shoe.
  • wireless is meant that the charge is made by wireless energy transmission between the charging device and the electronic module of the shoe.
  • the charge is carried out by induction, for example using the standard "Qi", but can of course be carried out by any other known method without departing from the scope of the present invention.
  • the induction charge being known per se, it will not be further detailed here.
  • FIG 1 a shoe 1 adapted to cooperate with a device according to the invention and in 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 the wireless charging of the power supply battery 1 10 of an electronic module 10 mounted in said shoe 1.
  • the invention can be applied in a non-limiting manner to any type of shoe 1 in which an electronic module 20 would be mounted.
  • FIG. 1 An example of shoe 1.
  • This shoe 1 in which is mounted an electronic module 10, comprises from bottom to top an outer sole 1A called “outsole”, an inner sole 1 B and a rod 1 C.
  • the electronic module 10 is mounted in the sole assembly 1A, 1B of the shoe, preferably in a housing 1A-1 formed in the insole 1B (sockliner) as shown in the example of the figure 1 .
  • the electronic module 10 could for example be mounted in a housing formed in the outer sole 1 B, under the inner sole 1 A.
  • the housing 1 A-1 is located at the heel 1 D of the boot 1.
  • the electronic module 10 could be mounted at another location of the sole assembly 1A, 1B, for example at its middle or front, or even be mounted under the insole 1B.
  • the electronic module 10 comprises a management unit 100, a power supply battery 1 10 in electrical energy 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 may comprise a gelation sub-module (not shown), for example of GPS (Global Positioning System) type, allowing the microcontroller to determine the geographical position of the electronic module 10, and therefore the shoe 1.
  • the management unit 100 may comprise a sensor (not shown), for example of the MEMS type (MicroElectroMechanical Systems), allowing the microcontroller to determine the speed of movement of the wearer of the shoe 1, etc.
  • the power supply battery 1 10 is configured to power the management unit 100 electrical energy in order to make it work.
  • the receiver coil 120 is adapted to receive a wireless charging signal of the device 2 in order to recharge the power supply battery 1 10 in electrical energy as will be explained below.
  • the receiver coil 120 extends in the shoe 1 so as to be able to receive a load signal transmitted vertically and in its direction by the charging device 2 when said device 2 is positioned in the shoe 1 as will be explained below.
  • the receiver coil 120 may 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 FIGS. 2 and 3, and a wireless charging module 25, illustrated for example in FIGS. 4 to 6.
  • the body 20 is adapted to conform to an interior space 1 E (illustrated in Figure 1) of said shoe 1 delimited between the rod 1 C and the inner sole 1 B of the shoe 1 and located at the right of the receiving coil 120 of the electronic module 10 of the shoe 1.
  • This inner space 1 E corresponds in this example in part to the volume that would occupy the heel of a human foot carrying the shoe 1, this inner space 1 E 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 human heel foot so as to conform to the inner space 1 E of the shoe 1 .
  • the body 20 is preferably made of a plastic material, for example polycarbonate, and comprises in this example an upper portion 20A and a lower portion 20B.
  • the upper part 20A of the body 20 comprises at least one gripping means for inserting and removing the device 2 from the inner space 1 E of the boot 1.
  • this gripping means is derived from material of the body 20.
  • this gripping means can be reported.
  • the gripping means can be advantageously in the form of a rod or a handle. In the embodiment illustrated in Figures 2, 3, 7 and 8, the gripping means is in the form of a handle 20A-1 material of the upper part 20A of the body 20.
  • the part 20B of the body 20, shown in Figure 4 is configured to receive the wireless charging module 25 and to be placed on the inner sole 1 B of the boot 1. For this purpose, with reference to FIG.
  • the lower part 20B comprises a bottom wall 20B1, called a "contact wall”, adapted to be placed on the upper face 1 B1 of the sole internal 1B (with reference to FIGS. 1 and 9).
  • this bottom wall 20B1 may comprise non-slip means (not shown).
  • the wireless charging module 25 comprises a management sub-module 250 shown in FIG. 5, and a charging coil 255, illustrated in FIG. 6.
  • wireless charging module 25 is mounted in the lower portion 20B of the body 20 of the device 2. More specifically, the management sub-module 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 sub-module 250 manages the wireless transmission of energy through the load coil 255 from an external power source (not shown). This energy source is preferably a domestic external electrical network, for example using a nominal voltage of between 100 V and 240 V.
  • the device 2 further comprises a wired means for connection to an external electrical network, which is in this example in the form of a connected socket 27A to the device 2 via an electric cable 27B and comprising a transformer (not shown) of the AC-DC type, connected to said electric cable 27B (passing through the upper part 20A as illustrated in FIGS. 2 and 3) in order to convert the alternating current received from the external electrical network in a direct current defining a DC voltage of, for example, between 3 V and 24 V for supplying the components of the management sub-module 250 and the charging coil 255.
  • the electric cable 27B extends from the upper part the body 20 of the device 2 upwards so as not to hinder the positioning of the device 2 in the interior space 1 E.
  • the body 20 delimits both in the upper part 20A and in the lower part 20B a clearance space 21 (FIGS. 8) and includes heat-evacuation orifices 22 in the upper part 20A of the body 20, illustrated in FIGS. 2 and 8.
  • the charging coil 255 which is the energy-transmitting coil of the wireless charging device 2, is mounted under the printed circuit 250A of the management sub-module of FIG. load 250 so as to emit down towards the shoe 1.
  • the wireless charging module 25 comprises a single charging coil 255, without this being a limitation of the scope of the present invention.
  • the charging coil 255 is annular in shape, and is fixed on the underside 250A1 of the printed circuit 250A coaxially with said printed circuit 250A.
  • the charging coil 255 is positioned against the inner face 20B1 1 of the bottom wall 20B1 (FIG.
  • the charging coil 255 is in contact with the inner face 20B1 1 of the bottom wall 20B1.
  • the charging coil 255 could be spaced a few tenths of a millimeter or even a few millimeters from the inner wall 20B1 1.
  • the shapes of the printed circuit 250A and of the charge coil 255 could be different, for example of rectangular shape or other.
  • the nature and arrangement of the electronic components 250B mounted on the printed circuit 250A for induction charging are 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 system suitable assembly could be used. Likewise, it should be noted that the body 20 could comprise more or less two parts 20A, 20B.
  • the shape of the body 20 of the device 2 allows a user to position the device 2 in the shoe 1 still substantially in the same position in which the charging coil 255 is positioned to the right of the receiving coil 120 of the electronic module
  • 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 charging coil 255 in the body 20 of the device 2, or even the shape of the device, depend primarily on the position of the receiver coil 120 in the shoe 1 and should therefore be adapted accordingly.
  • the device 2 may comprise one or more means (not shown in this example) for visualizing the wireless state of charge of the battery. 1, for example one or more diodes indicating a state of charge and a charged state of the battery pack 1 10.
  • the charging device 2 may be devoid of wired means of connection to an external electrical network (socket 27A and electric cable 27B) and further comprise a battery (mounted in the body 20 or else on the body 20, for example removably), the charging coil 255 then being configured to receive electrical energy transmitted by a wireless charging medium when the charging device 1 is placed on said charging medium.
  • FIG. 10 shows 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.
  • a single shoe 1 or each of the two shoes 1 may 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 battery supply 1 10 of said electronic module 10.
  • the user of the shoe 1 wishes to charge the supply battery 1 10 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 inner space 1 E, in a step E1.
  • the shape of the body 20 of the device 2 then substantially matches the shape of the back of the inside of the shoe 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 shoe 1. This allows the charge coil 255 to be correctly aligned with the receiver coil 120 for optimal and fast charging.
  • the user then connects, in a step E2, the charging device 1 to the power supply network via the socket 27A and the cable 27B. Then, the management sub-module 250 charges the power supply battery 1 10 of the electronic module 10 the boot 1 by wireless electrical energy transmission 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) and then disconnects the plug 27A from the electrical network in a step E5, as the case may be .
  • steps 1 and 2 could be reversed as well as steps 4 and 5.
  • steps 1 and 5 are optional for the case where plug 27A remains permanently connected to the electrical network.
  • 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 receiver coil 120 and therefore an effective charge of the power supply battery 1 10.
  • the realization of the wireless charge by a device 2 of reduced size placed inside the shoe 1 advantageously avoids the use of a bulky and bulky charge carrier.
  • the wireless charging device 2 according to the invention makes it possible to avoid taking out the soleplate or the electronic module 10 of the boot 1 for the load.
  • the wireless charging device 2 according to the invention makes it possible to avoid the use of a cable for connecting the electronic module and the electric charging network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention relates to a wireless charging device (2) for a battery pack (110) of an electronic module (10) mounted in a shoe (1), the electronic module (10) comprising a receiver coil (120) capable of receiving a charge signal for charging the battery pack (110). The device (2) comprises a body which is suitable for being placed in an inner compartment in the shoe (1), and a wireless charging module mounted in the body and comprising at least one charging coil mounted in the body of the device (2) so as to permit the wireless charging of the battery pack (110) when the device is placed in the inner compartment in the shoe (1).

Description

DISPOSITIF DE CHARGE SANS FIL POUR CHAUSSURE OU SEMELLE CONNECTEE  WIRELESS CHARGING DEVICE FOR CONNECTED FOOTWEAR OR SOLE
DOMAINE TECHNIQUE ET OBJET DE L'INVENTION [0001 ] 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. TECHNICAL FIELD AND OBJECT OF THE INVENTION The present invention relates to the field of wireless charging and relates more particularly to a wireless charging device of a battery for powering an electronic module mounted in a shoe.
[0002] 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 battery pack of an electronic module mounted in a shoe both easily and without connection between the charging device and the electronic module.
ETAT DE LA TECHNIQUE STATE OF THE ART
[0003] 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, there is a type of shoe in which is integrated an electronic module, for example in the sole of the shoe, at 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 fulfill these functions. The battery pack can be recharged in two ways: either using a power cable or using a wireless charger.
[0004] 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 entraîner 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 on a connector mounted on the shoe, or directly on the electronic module. The use of a connector can change the structure of the shoe and annoy the wearer. In addition, the presence of a connector may cause a leakage of the electronic module, including liquids and dust, which has a significant drawback. In the case where the power cable connects directly to the electronic module, it is necessary to remove the inner sole of the shoe, or even to remove the electronic module of the shoe to allow the charging of its battery, which presents significant disadvantages.
[0005] 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. In the case of a wireless charging device, for example by induction, it is necessary to put the shoes or the soles on a load support in order to recharge the battery by wireless power transmission. The support comprises one or more charging coils while the electronic module comprises a so-called receiving coil, adapted to receive electrical energy from one of the load coils of the support. However, in this solution, it is necessary to position the shoes very precisely so that each load coil of the support is exactly opposite a receiving coil of an electronic module of a shoe. Such positioning can be particularly complex and tedious, which has a significant disadvantage. In addition, such a load support can be bulky and bulky, which has another drawback.
[0006] 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 the need for a simple, reliable and effective solution for charging the battery pack of an electronic module mounted in a shoe to remedy at least in part these disadvantages.
PRESENTATION GENERALE DE L'INVENTION [0007] 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 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. GENERAL PRESENTATION OF THE INVENTION For this purpose, the invention firstly relates to a wireless charging device of a battery for powering an electronic module mounted in a shoe, said electronic module comprising a receiver coil adapted to receive a charge signal for charging said battery pack. Said device is remarkable in that it comprises a body, adapted to be placed in an interior space of said shoe and conforming at least partly to the shape of said interior space, and a wireless charging module mounted in said body and comprising minus a charging coil mounted in the body of the device so as to allow the wireless charging of said battery pack, via said receiver coil, when the device is placed in said interior space of the boot.
[0008] 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. [0009] 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. With the device according to the invention, it is no longer necessary to remove the sole or the electronic module of the shoe to be able to recharge the battery pack. This is particularly advantageous when the electronic module is mounted in the sole. In addition, the shape of the device, which at least partially matches the shape of the inside of the shoe, allows to place the device automatically in the interior space of the shoe so that it is an optimal position of load of the battery pack, that is to say, so that the charging coil of the device is aligned with the receiving coil of the shoe for an optimal and fast charge. The device according to the invention is advantageously of small dimensions and can be placed as close to the receiver coil of the electronic module for an effective charge of the battery pack. In addition, the device is advantageously portable and can be easily placed in a purse, a backpack or a suitcase. Preferably, the shoe comprising an outsole, said "outsole", and an insole, said "foot sole" disposed inside the shoe on the outsole, the electronic module being mounted in said insole or under said insole, the body of the device comprises a lower wall, called "contact wall", intended to come into contact with the upper face of the insole, the charging coil being mounted against the inner face of said lower wall so as to transmit the energy through the contact wall when the charging coil is traversed by an electric current. Such an arrangement optimizes the position of the charging coil with respect to the receiver coil and thus the charging of the battery pack making it more efficient.
[0010] De manière préférée, 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. Preferably, the body of the device has at least partly the shape of a human heel, which allows to easily position the device in the shoe, at the rear of the sole, and then remove the device easily.
[0011 ] 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 comprises a single charging coil to simplify the device. Alternatively, the charging module may include a plurality of charging coils to increase the charging surface, which facilitates alignment with the receiver coil and then improves the wireless power transmission.
[0012] 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 a feature of the invention, the device comprises at least one gripping means for inserting and removing the device from the interior space of the shoe.
[0013] 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. [0014] Le moyen de préhension peut être issu de matière du corps du dispositif ou bien rapporté sur le corps du dispositif. Preferably, the gripping means is in the form of a handle or a rod, allowing insertion and easy removal of the device in a shoe. The gripping means may be derived from material of the body of the device or attached to the body of the device.
[0015] 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, lightweight and resistant.
[0016] 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 portion and a lower portion, for example assembled by means of a system of bolts and nuts. The device can thus be easily dismantled to carry out the maintenance of the load module.
[0017] 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 connection means to an electrical power supply network for supplying the wireless charging device.
[0018] 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. [0019] 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. Preferably, this connection means is a wired means. More preferably, this wire 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 exit the interior space of the boot in a straight line. By the term "high" is meant substantially in the vertical direction towards the sky when the device is in its position of use in the interior space of the shoe. Alternatively, the charging device may be devoid of wired means of connection to an electrical power supply network and further comprise a battery, the charge coil being then configured to receive the transmitted electrical energy. by a wireless charging medium to recharge said battery when the charging device is placed on said charging medium. Such an operation makes it possible to charge the electronic module power supply battery at any time, in particular in the absence of an external electrical network.
[0020] 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. [0021 ] 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. According to one aspect of the invention, the battery of the charging device is mounted in the body or on the body, for example removably. Advantageously, the device comprises at least one means for displaying the wireless state of charge of the electronic module power supply battery.
[0022] 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.
[0023] 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.
[0024] 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 effectively transmits energy while allowing a slight rotation of the device about a vertical axis (i.e. parallel to the earth's vertical) in the shoe.
[0025] La bobine de charge peut par exemple être de forme circulaire, elliptique ou rectangulaire. The charging coil may for example be of circular, elliptical or rectangular shape.
[0026] 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 previously described. The shoe includes an electronic module comprising a battery pack and a receiver coil adapted to allow the wireless charging of said battery pack. 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 to allow wireless charging of said battery pack.
PRESENTATION DES FIGURES [0027] 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 ; PRESENTATION OF FIGURES The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the accompanying drawings given by way of non-limiting examples, in which identical references are given to FIG. similar objects and in which: - Figure 1 is a schematic side view in transparency of an example of shoe comprising an electronic module;
- la figure 2 est une vue en perspective de trois quart et de dessus d'une forme de réalisation du dispositif selon l'invention ;  - Figure 2 is a perspective view of three quarters and above of an embodiment of the device according to the invention;
- la figure 3 est une vue en perspective de trois quart et de dessous du dispositif de la figure 2 ;  - Figure 3 is a perspective view of three quarter and bottom of the device of 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 ;  FIG. 4 is a three-quarter perspective view from above of the lower part of the device of FIG. 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 ;  FIG. 5 is a three-quarter perspective view from above of the printed circuit of the charging module of the device of FIG. 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 ;  FIG. 6 is a perspective view of three quarters and below of the printed circuit of the charging module of the device of FIG. 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 ;  FIG. 7 is a perspective view three quarters and below of the upper part of the device of FIG. 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 ;  - Figure 8 is a partial side view in transparency of the device of Figure 2; FIG. 9 is a partial schematic side view in transparency of the shoe of FIG. 1 in which the device illustrated in FIG. 8 is mounted;
- la figure 10 illustre un mode de réalisation du procédé selon l'invention.  FIG. 10 illustrates an embodiment of the method according to the invention.
[0028] Il faut noter que les figures exposent l'invention de manière détaillée pour mettre en œuvre l'invention, lesdites figures pouvant bien entendu servir à mieux définir l'invention le cas échéant. It should be noted that the figures disclose the invention in detail to implement the invention, said figures can of course be used to better define the invention where appropriate.
DESCRIPTION DETAILLEE D'UNE FORME DE REALISATION DE L'INVENTION DETAILED DESCRIPTION OF A FORM OF EMBODYING THE INVENTION
[0029] 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. [0030] 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 1 10 d'un module électronique 10 monté dans ladite chaussure 1 . [0031 ] 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. The device according to the invention is a wireless charging device for charging the battery pack of an electronic module mounted in a shoe. By the terms "wireless" is meant that the charge is made by wireless energy transmission between the charging device and the electronic module of the shoe. Preferably, the charge is carried out by induction, for example using the standard "Qi", but can of course be carried out by any other known method without departing from the scope of the present invention. The induction charge being known per se, it will not be further detailed here. There is shown in Figure 1 a shoe 1 adapted to cooperate with a device according to the invention and in 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 the wireless charging of the power supply battery 1 10 of an electronic module 10 mounted in said shoe 1. Note that the invention can be applied in a non-limiting manner to any type of shoe 1 in which an electronic module 20 would be mounted.
[0032] Chaussure 1 [0032] Shoe 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 1 A dite « semelle de marche », une semelle interne 1 B et une tige 1 C. There is shown in Figure 1 an example of shoe 1. This shoe 1, in which is mounted an electronic module 10, comprises from bottom to top an outer sole 1A called "outsole", an inner sole 1 B and a rod 1 C.
[0033] Le module électronique 10 est monté dans le semelage 1 A, 1 B de la chaussure, de préférence dans un logement 1 A-1 formé dans la semelle interne 1 B (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 1 A. The electronic module 10 is mounted in the sole assembly 1A, 1B of the shoe, preferably in a housing 1A-1 formed in the insole 1B (sockliner) as shown in the example of the figure 1 . Alternatively, the electronic module 10 could for example be mounted in a housing formed in the outer sole 1 B, under the inner sole 1 A.
[0034] Toujours dans cet exemple préféré, le logement 1 A-1 est situé au niveau du talon 1 D de la chaussure 1 . On notera qu'en variante, le module électronique 10 pourrait être monté à un autre endroit du semelage 1 A, 1 B, par exemple au niveau de sa partie médiane ou avant, ou bien encore être monté sous la semelle interne 1 B. [0035] Toujours en référence à la figure 1 , le module électronique 10 comprend une unité de gestion 100, une batterie d'alimentation 1 10 en énergie électrique et une bobine réceptrice 120. Still in this preferred example, the housing 1 A-1 is located at the heel 1 D of the boot 1. Note that alternatively, the electronic module 10 could be mounted at another location of the sole assembly 1A, 1B, for example at its middle or front, or even be mounted under the insole 1B. 0035] Still with reference to FIG. 1, the electronic module 10 comprises a management unit 100, a power supply battery 1 10 in electrical energy and a receiver coil 120.
[0036] 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 may comprise a gelation sub-module (not shown), for example of GPS (Global Positioning System) type, allowing the microcontroller to determine the geographical position of the electronic module 10, and therefore the shoe 1. Still as an example, the management unit 100 may comprise a sensor (not shown), for example of the MEMS type (MicroElectroMechanical Systems), allowing the microcontroller to determine the speed of movement of the wearer of the shoe 1, etc.
[0037] La batterie d'alimentation 1 10 est configurée pour alimenter l'unité de gestion 100 énergie électrique afin de la faire fonctionner. [0038] La bobine réceptrice 120 est apte à recevoir un signal de charge sans fil du dispositif 2 afin de recharger la batterie d'alimentation 1 10 en énergie électrique comme cela sera expliqué ci-après. The power supply battery 1 10 is configured to power the management unit 100 electrical energy in order to make it work. The receiver coil 120 is adapted to receive a wireless charging signal of the device 2 in order to recharge the power supply battery 1 10 in electrical energy as will be explained below.
[0039] 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. For this purpose, the receiver coil 120 extends in the shoe 1 so as to be able to receive a load signal transmitted vertically and in its direction by the charging device 2 when said device 2 is positioned in the shoe 1 as will be explained below. The receiver coil 120 may have any shape suitable for wireless charging, for example circular or elliptical.
[0040] Dispositif 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. [0040] Device 2 The wireless charging device 2 comprises a body 20, illustrated for example in FIGS. 2 and 3, and a wireless charging module 25, illustrated for example in FIGS. 4 to 6.
[0041 ] Le corps 20 est adapté pour se conformer à un espace intérieur 1 E (illustré sur la figure 1 ) de ladite chaussure 1 délimité entre la tige 1 C et la semelle interne 1 B de la chaussure 1 et situé au droit de la bobine réceptrice 120 du module électronique 10 de la chaussure 1 . Cet espace intérieur 1 E correspond dans cet exemple en partie au volume qu'occuperait le talon d'un pied humain porteur de la chaussure 1 , cet espace intérieure 1 E 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 1 E de la chaussure 1 . [0042] 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. The body 20 is adapted to conform to an interior space 1 E (illustrated in Figure 1) of said shoe 1 delimited between the rod 1 C and the inner sole 1 B of the shoe 1 and located at the right of the receiving coil 120 of the electronic module 10 of the shoe 1. This inner space 1 E corresponds in this example in part to the volume that would occupy the heel of a human foot carrying the shoe 1, this inner space 1 E 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 human heel foot so as to conform to the inner space 1 E of the shoe 1 . Referring to Figures 2 and 3, the body 20 is preferably made of a plastic material, for example polycarbonate, and comprises in this example an upper portion 20A and a lower portion 20B.
[0043] 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 1 E 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. [0044] 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 1 B 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 1 B1 de la semelle interne 1 B (en référence aux figures 1 et 9). De manière avantageuse, cette paroi inférieure 20B1 peut comprendre des moyens antidérapants (non représentés). The upper part 20A of the body 20 comprises at least one gripping means for inserting and removing the device 2 from the inner space 1 E of the boot 1. Preferably, this gripping means is derived from material of the body 20. Alternatively, this gripping means can be reported. The gripping means can be advantageously in the form of a rod or a handle. In the embodiment illustrated in Figures 2, 3, 7 and 8, the gripping means is in the form of a handle 20A-1 material of the upper part 20A of the body 20. The part 20B of the body 20, shown in Figure 4, is configured to receive the wireless charging module 25 and to be placed on the inner sole 1 B of the boot 1. For this purpose, with reference to FIG. 3, the lower part 20B comprises a bottom wall 20B1, called a "contact wall", adapted to be placed on the upper face 1 B1 of the sole internal 1B (with reference to FIGS. 1 and 9). Advantageously, this bottom wall 20B1 may comprise non-slip means (not shown).
[0045] 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. [0046] 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. The wireless charging module 25 comprises a management sub-module 250 shown in FIG. 5, and a charging coil 255, illustrated in FIG. 6. In this preferred example, as illustrated in FIG. wireless charging module 25 is mounted in the lower portion 20B of the body 20 of the device 2. More specifically, the management sub-module 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. With reference to FIG. 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 sub-module 250 manages the wireless transmission of energy through the load coil 255 from an external power source (not shown). This energy source is preferably a domestic external electrical network, for example using a nominal voltage of between 100 V and 240 V.
[0047] 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 1 E. To this end, in the embodiment illustrated in Figures 2 and 3, the device 2 further comprises a wired means for connection to an external electrical network, which is in this example in the form of a connected socket 27A to the device 2 via an electric cable 27B and comprising a transformer (not shown) of the AC-DC type, connected to said electric cable 27B (passing through the upper part 20A as illustrated in FIGS. 2 and 3) in order to convert the alternating current received from the external electrical network in a direct current defining a DC voltage of, for example, between 3 V and 24 V for supplying the components of the management sub-module 250 and the charging coil 255. The electric cable 27B extends from the upper part the body 20 of the device 2 upwards so as not to hinder the positioning of the device 2 in the interior space 1 E.
[0048] 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 charge coil 255 and the electronic components 250B, the body 20 delimits both in the upper part 20A and in the lower part 20B a clearance space 21 (FIGS. 8) and includes heat-evacuation orifices 22 in the upper part 20A of the body 20, illustrated in FIGS. 2 and 8.
[0049] 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 20B1 1 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 20B1 1 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 20B1 1 . [0050] 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. With reference to FIGS. 4 to 6 and 8, the charging coil 255, which is the energy-transmitting coil of the wireless charging device 2, is mounted under the printed circuit 250A of the management sub-module of FIG. load 250 so as to emit down towards the shoe 1. In the illustrated embodiment, the wireless charging module 25 comprises a single charging coil 255, without this being a limitation of the scope of the present invention. In this example, the charging coil 255 is annular in shape, and is fixed on the underside 250A1 of the printed circuit 250A coaxially with said printed circuit 250A. The charging coil 255 is positioned against the inner face 20B1 1 of the bottom wall 20B1 (FIG. 8) so as to transmit the energy it generates through said lower wall 20B1 when said charging coil 255 is traversed by a current electric. Preferably, the charging coil 255 is in contact with the inner face 20B1 1 of the bottom wall 20B1. Alternatively, the charging coil 255 could be spaced a few tenths of a millimeter or even a few millimeters from the inner wall 20B1 1. It will be noted that, in a variant, the shapes of the printed circuit 250A and of the charge coil 255 could be different, for example of rectangular shape or other. In addition, the nature and arrangement of the electronic components 250B mounted on the printed circuit 250A for induction charging are known per se, they will not be further detailed here.
[0051 ] 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 illustrated in 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 system suitable assembly could be used. Likewise, it should be noted that the body 20 could comprise more or less two parts 20A, 20B.
[0052] 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 électroniqueThe shape of the body 20 of the device 2 allows a user to position the device 2 in the shoe 1 still substantially in the same position in which the charging coil 255 is positioned to the right of the receiving coil 120 of the electronic module
10 monté dans la chaussure 1 . 10 mounted in the shoe 1.
[0053] Pour une charge efficace de la batterie d'alimentation 1 10 du module électronique 10,For an effective charge of the power supply battery 1 10 of the electronic module 10,
11 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. It is 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 charging coil 255 in the body 20 of the device 2, or even the shape of the device, depend primarily on the position of the receiver coil 120 in the shoe 1 and should therefore be adapted accordingly.
[0054] Afin de visualiser l'état de charge de la batterie d'alimentation 1 10, 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 1 10, par exemple une ou plusieurs diodes indiquant un état en charge et un état chargé de la batterie d'alimentation 1 10. In order to display the state of charge of the power supply battery 1 10, the device 2 may comprise one or more means (not shown in this example) for visualizing the wireless state of charge of the battery. 1, for example one or more diodes indicating a state of charge and a charged state of the battery pack 1 10.
[0055] 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 1 10 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 electric cable 27B) and further comprise a battery (mounted in the body 20 or else on the body 20, for example removably), the charging coil 255 then being configured to receive electrical energy transmitted by a wireless charging medium when the charging device 1 is placed on said charging medium. Such an operation makes it possible to carry out the charging of the supply battery 1 10 at any moment, in particular in the absence of an external electrical network.
[0056] Mise en œuyre [0056] Implementation
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 . [0057] 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 1 10 dudit module électronique 10. [0058] En référence à la figure 10, lorsque l'utilisateur de la chaussure 1 souhaite réaliser la charge de la batterie d'alimentation 1 10 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 1 E, 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. FIG. 10 shows 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. In the case of a pair of shoes 1, a single shoe 1 or each of the two shoes 1 may 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 battery supply 1 10 of said electronic module 10. [0058] Referring to Figure 10 when the user of the shoe 1 wishes to charge the supply battery 1 10 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 inner space 1 E, in a step E1. The shape of the body 20 of the device 2 then substantially matches the shape of the back of the inside of the shoe 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 shoe 1. This allows the charge coil 255 to be correctly aligned with the receiver coil 120 for optimal and fast charging.
[0059] 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 1 10 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 power supply network via the socket 27A and the cable 27B. Then, the management sub-module 250 charges the power supply battery 1 10 of the electronic module 10 the boot 1 by wireless electrical energy transmission in a step E3.
[0060] 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. [0061 ] 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. [0062] 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 1 10. 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. Once the load has been completed, the user again grasps the gripping means in order to remove each of the devices 2 from their respective shoes 1 (step E4) and then disconnects the plug 27A from the electrical network in a step E5, as the case may be . It will be noted that steps 1 and 2 could be reversed as well as steps 4 and 5. Similarly, it should be noted that steps 1 and 5 are optional for the case where plug 27A remains permanently connected to the electrical network. external or 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 receiver coil 120 and therefore an effective charge of the power supply battery 1 10. The realization of the wireless charge by a device 2 of reduced size placed inside the shoe 1 advantageously avoids the use of a bulky and bulky charge carrier. In addition, the wireless charging device 2 according to the invention makes it possible to avoid taking out the soleplate or the electronic module 10 of the boot 1 for the load. Finally, the wireless charging device 2 according to the invention makes it possible to avoid the use of a cable for connecting the electronic module and the electric charging network.

Claims

REVENDICATIONS
Dispositif (2) de charge sans fil d'une batterie d'alimentation (1 10) d'un module électronique (10) monté dans une chaussure (1 ), ledit module électronique (10) comprenant une bobine réceptrice (120) apte à recevoir un signal de charge permettant de charger ladite batterie d'alimentation (1 10), ledit dispositif (2) étant caractérisé en ce qu'il comprend un corps (20), adapté pour être placé dans un espace intérieur (1 E) de ladite chaussure (1 ) et épousant au moins en partie la forme dudit espace intérieur (1 E), et un module de charge sans fil (25) monté dans ledit corps (20) et comprenant au moins une bobine de charge (255) montée dans le corps (20) du dispositif (2) de manière à permettre la charge sans fil de ladite batterie d'alimentation (1 10), via ladite bobine réceptrice (120), lorsque le dispositif (2) est placé dans ledit espace intérieur (1 E) de la chaussure (1 ).  Device (2) wirelessly charging a battery (1 10) of an electronic module (10) mounted in a shoe (1), said electronic module (10) comprising a receiver coil (120) adapted to receiving a charge signal for charging said battery pack (1 10), said device (2) being characterized in that it comprises a body (20) adapted to be placed in an interior space (1 E) of said shoe (1) and conforming at least in part to the shape of said interior space (1 E), and a wireless charging module (25) mounted in said body (20) and comprising at least one load coil (255) mounted in the body (20) of the device (2) so as to allow wireless charging of said battery pack (1 10) via said receiver coil (120) when the device (2) is placed in said interior space (1 E) of the shoe (1).
Dispositif (2) selon la revendication 1 , dans lequel, la chaussure (1 ) comprenant une semelle externe (1 A) et une semelle interne (1 B), disposée à l'intérieur de la chaussure (1 ) sur la semelle externe (1 A), le module électronique (10) étant monté dans ladite semelle interne (1 B), le corps (20) du dispositif (2) comprend une paroi inférieure (20B1 ) destinée à venir en contact avec la face supérieure (1 B1 ) de la semelle interne (1 B), la bobine de charge (255) étant montée contre la face intérieure(20B1 1 ) de ladite paroi inférieure (20B1 ) de manière à transmettre de l'énergie à travers ladite paroi inférieure (20B1 ) lorsque la bobine de charge (255) est parcourue par un courant électrique. Device (2) according to claim 1, wherein the shoe (1) comprising an outer sole (1 A) and an inner sole (1 B) disposed inside the shoe (1) on the outer sole ( 1A), the electronic module (10) being mounted in said inner plate (1B), the body (20) of the device (2) comprises a bottom wall (20B1) intended to come into contact with the upper face (1B1 ) of the insole (1 B), the charging coil (255) being mounted against the inner face (20B1 1) of said bottom wall (20B1) so as to transmit energy through said lower wall (20B1) when the charging coil (255) is traversed by an electric current.
Dispositif (2) selon l'une des revendications précédentes, dans lequel le corps (20) du dispositif (2) présente au moins en partie la forme d'un talon de pied humain. Device (2) according to one of the preceding claims, wherein the body (20) of the device (2) has at least partly the shape of a human foot heel.
Dispositif (2) selon l'une des revendications précédentes, dans lequel le module de charge (25) comprend une unique bobine de charge (255). Device (2) according to one of the preceding claims, wherein the charging module (25) comprises a single charging coil (255).
Dispositif (2) selon l'une des revendications précédentes, comprenant au moins un moyen de préhension (20A-1 ) permettant d'insérer et de retirer le dispositif (2) de l'espace intérieur (1 E) de la chaussure (1 ). Device (2) according to one of the preceding claims, comprising at least one gripping means (20A-1) for inserting and removing the device (2) from the inner space (1E) of the boot (1 ).
Dispositif (2) selon l'une des revendications précédentes, comprenant au moins un moyen de connexion (27A, 27B) à un réseau d'alimentation en énergie électrique. Device (2) according to one of the preceding claims, comprising at least one connection means (27A, 27B) to an electrical power supply network.
Dispositif (2) selon l'une des revendications précédentes, comprenant au moins un moyen de visualisation de l'état de charge sans fil de la batterie d'alimentation (1 10). Device (2) according to one of the preceding claims, comprising at least one means for displaying the wireless state of charge of the battery pack (1 10).
8. Dispositif (2) selon l'une des revendications précédentes, dans lequel le module de charge sans fil (25) comprend un circuit imprimé (250A). 8. Device (2) according to one of the preceding claims, wherein the wireless charging module (25) comprises a printed circuit (250A).
9. Dispositif (2) selon la revendication précédente, dans lequel le circuit imprimé (250A) présente une forme circulaire.  9. Device (2) according to the preceding claim, wherein the printed circuit (250A) has a circular shape.
10. Dispositif (2) selon la revendication précédente, dans lequel la bobine de charge (255) est circulaire et est montée de manière coaxiale avec le circuit imprimé (250A).  10. 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

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

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WO (1) WO2019068637A1 (en)

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EP3383213B1 (en) * 2015-11-30 2021-03-03 NIKE Innovate C.V. Article of footwear and charging system

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EP3691487B1 (en) 2021-08-18
FR3071707B1 (en) 2020-07-31
FR3071707A1 (en) 2019-04-05
WO2019068637A1 (en) 2019-04-11

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