EP2616888B1 - Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover - Google Patents
Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover Download PDFInfo
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- EP2616888B1 EP2616888B1 EP11770446.0A EP11770446A EP2616888B1 EP 2616888 B1 EP2616888 B1 EP 2616888B1 EP 11770446 A EP11770446 A EP 11770446A EP 2616888 B1 EP2616888 B1 EP 2616888B1
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- watch
- battery
- electrically conductive
- finger
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- 239000004020 conductor Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 9
- 210000000707 wrist Anatomy 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/08—Touch switches specially adapted for time-pieces
Definitions
- the present invention relates to a timepiece of the wristwatch type with capacitive touch zones comprising a battery door closed by an electrically conductive battery cover. More specifically, the present invention relates to such a watch comprising a battery door closed by an electrically conductive cover for improving the operation of the watch.
- a capacitive touch zone wristwatch includes, in particular, a watch glass made of an organic or mineral transparent material disposed over a time indicating device.
- the time indication device may be of the analog type. In this case, it is formed by a dial above which eg hour and minute hands move.
- the time indicating device may also be of the digital type. In this case, it comprises a display cell whose optical properties are modified by applying a voltage or an appropriate electric current.
- To form the tactile zones it is possible, for example, to structure on the face of the ice opposite the device for indicating the time electrodes made of a transparent conductive material such as tin-indium oxide, a better material. known under its name Anglo-Saxon indium-tin oxide or ITO.
- the tactile zones form, with the air from which they are separated by the watch glass, the two plates of a capacitor which has a certain value of capacitance.
- This capacity value is fixed by the sum of the various parasitic capacitances of the electronic system seen by an electrode forming a tactile zone.
- This capacity value will be modified when the user places his finger on the outer surface of the ice, opposite the electrode forming the selected touch zone. The effect of the finger is added to the parasitic capacitances and thus modifies the total capacity seen by the electronic control system of the watch.
- the electronic control system housed in the watch case will detect this variation of capacity and deduce the corresponding instruction. In response to the introduction of this data, the electronic control circuit will perform the required operations.
- the detection by the electronic system of the watch of the variation of the capacity of the touch zone selected by the user who places his finger on it must be do as accurately as possible.
- the variation in the capacity induced by the user's finger on the watch is very small compared to the value of the parasitic capacitances and either therefore difficult to detect.
- the electronic detection system of the watch may not be able to detect the presence of the finger of the user next to the selected touch zone and not to control the desired operation by the user, which is problematic .
- the document EP 1 426 738 discloses a capacitive-type touch-zone wristwatch comprising a watch case defined by a middle-metal bezel, this watch case comprising a housing in which is housed a battery and which is closed by an also metallic bottom.
- the negative pole of the battery is connected to the bottom of the metal case.
- the connection between the battery and the metal bottom is made by simple contact between said battery and said bottom.
- the document US 4,048,796 describes an electronic wristwatch including an electrically insulated metal bezel of a middle part metal by interposition of an insulating frame.
- the metal bezel is connected to an input terminal of a touch sensitive electronic switching circuit arranged in the electronic wristwatch, while the middle metal is connected to another input terminal of the electronic switching circuit sensitive to the electronic wristwatch. to touch.
- the present invention aims to overcome the aforementioned drawbacks as well as others by providing a capacitive-type touch-zone wristwatch comprising means for fixing the detection system and the wearer of the watch to the same electrical potential. .
- the present invention relates to a capacitive-type touch-zone wristwatch comprising a box made of a non-electrically conductive material, this box comprising a battery door in which a battery is housed and which is closed by an electrically conductive battery cover, the electrically conductive battery cover being mounted on the watch case with the interposition of an electrically conductive gasket between the battery cover and an electrode of the battery; battery.
- the present invention provides a capacitive-type touch-zone wristwatch whose box, although made of a non-electrically conductive material, still allows all the elements, including the wearer's body. of the watch, involved in the detection of the capacitance variation of the touch zone are brought to the same electrical potential. It is thus possible to avoid practically any fluctuation of the value of the capacitance formed by the finger of the wearer of the watch placed on the ice of the watch opposite the desired touch key and to consequently ensure a correct functioning of the shows.
- the conductive gasket of electricity when the user puts his finger on the ice of the watch, it forms a closed loop between the user's finger, the watch ice , the touch zone next to which the user's finger is placed, the printed circuit board on which is mounted the electronic control circuit of the touch zones, the battery, the battery cover with which the battery is in contact via the seal and the wrist of the user with which the battery cover is in contact.
- the present invention proceeds from the general inventive idea of equipping the battery door with a touch-sensitive watch whose box is made of a non-electrically conductive material of an electrically conductive battery cover. provided with a seal made of a conductive material such as an elastomeric material loaded with conductive particles so that, when the user of the watch puts a finger on the ice of the watch, all the elements of the watch involved in the detection of the variation of capacity, including the body of the user, are brought to the same electrical potential which corresponds to the internal reference potential of the electronic system of the watch.
- FIG. 1 The single figure appended to the present patent application is a schematic cross-sectional view of a capacitive-type touch-zone wristwatch according to the invention.
- this watch comprises a transparent ice 2 made of an organic or mineral material.
- This mirror covers an analog time display device 4 comprising a dial 6 above which an hour hand 8 and a minute hand 10 move.
- On the face 12 of the watch glass 2 facing the device time display 4 is structured at least one electrode forming a touch zone 14.
- This touch zone 14 is made of a transparent electrically conductive material such as tin-indium oxide better known in its entirety. Anglo-Saxon name indium-tin oxide or ITO.
- the touch zone 14 forms with the air from which it is separated by the watch glass 2 the two plates of a capacitor C2 which has a determined capacitance value.
- This value of external capacitance C2 is formed by the set of parasitic capacitances distributed around the electrode, both inside the watch (printed circuit 22, metal elements, motors, connectors and the like) that the outside (wearer's arm, environment).
- the value of the capacitor C2 is modified when the user places his finger 16 on the watch glass 2, next to the touch zone 14.
- This touch zone 14 is connected to a control integrated circuit 18 by means of a connector 20 which extends vertically between the watch glass 2 and a printed circuit support 22 on which the integrated control circuit 18 is mounted.
- the connector 20 is a "zébra" type connector which conducts electricity in the only direction vertical.
- the box 24 of the watch 1 comprises a battery door 26 in which is housed a battery 28.
- This battery door 26 is closed by a lid 30 which is electrically conductive with the interposition of a gasket.
- sealing 32 made of a conductive material of the electricity between the electrically conductive lid 30 and the battery 28.
- This seal 32 which seals the battery door 26 also ensures the continuity of the electrical conduction between one of the poles of the battery 28 and the cover 30 conducts electricity.
- This seal 32 may for example be made of an elastomeric material loaded with conductive particles.
- the electrical contact between the battery cover 30 and the battery 28 can be further improved by arranging a layer of conductive fat between these two elements.
- the other pole of the battery 28 is connected to the printed circuit support 22 for supplying the control integrated circuit 18 and the touch zone 14.
- the electrically conductive gasket 32 serves to close a loop 34 between the user's finger 16 placed on the window 2 of the watch 1, the window 2, the touch zone 14, the integrated circuit 18, the battery 28, the seal 32, the battery cover 30 and the wrist of the user 36.
- a capacitance C2 is thus formed between the wrist of the user 36, the battery cover 30, the seal 32, the battery 28, the printed circuit support 22, the electrical connector 20, the touch zone 14 and the ice 2 of the watch 1.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Gasket Seals (AREA)
- Electromechanical Clocks (AREA)
Description
La présente invention concerne une pièce d'horlogerie du type montre-bracelet à zones tactiles capacitives comprenant une trappe de pile fermée par un couvercle de pile conducteur de l'électricité. Plus précisément, la présente invention concerne une telle montre comprenant une trappe de pile fermée par un couvercle conducteur de l'électricité permettant d'améliorer le fonctionnement de la montre.The present invention relates to a timepiece of the wristwatch type with capacitive touch zones comprising a battery door closed by an electrically conductive battery cover. More specifically, the present invention relates to such a watch comprising a battery door closed by an electrically conductive cover for improving the operation of the watch.
Une montre-bracelet à zones tactiles capacitives comprend, en particulier, une glace de montre réalisée en un matériau transparent organique ou minéral disposée au-dessus d'un dispositif d'indication de l'heure. Le dispositif d'indication de l'heure peut être de type analogique. Dans ce cas, il est formé par un cadran au-dessus duquel se déplacent par exemple des aiguilles d'heures et de minutes. Le dispositif d'indication de l'heure peut également être de type numérique. Dans ce cas, il comprend une cellule d'affichage dont les propriétés optiques sont modifiées par application d'une tension ou d'un courant électrique approprié. Pour former les zones tactiles, on peut par exemple structurer sur la face de la glace en regard du dispositif d'indication de l'heure des électrodes réalisées en un matériau conducteur transparent tel que de l'oxyde d'étain-indium, matériau mieux connu sous sa dénomination anglo-saxonne indium-tin oxyde ou ITO.A capacitive touch zone wristwatch includes, in particular, a watch glass made of an organic or mineral transparent material disposed over a time indicating device. The time indication device may be of the analog type. In this case, it is formed by a dial above which eg hour and minute hands move. The time indicating device may also be of the digital type. In this case, it comprises a display cell whose optical properties are modified by applying a voltage or an appropriate electric current. To form the tactile zones, it is possible, for example, to structure on the face of the ice opposite the device for indicating the time electrodes made of a transparent conductive material such as tin-indium oxide, a better material. known under its name Anglo-Saxon indium-tin oxide or ITO.
Au repos, les zones tactiles forment avec l'air dont elles sont séparées par la glace de montre les deux armatures d'un condensateur qui présente une certaine valeur de capacité. Cette valeur de capacité est fixée par la somme des diverses capacités parasites du système électronique vue par une électrode formant une zone tactile. Cette valeur de capacité va être modifiée lorsque l'utilisateur pose son doigt sur la surface extérieure de la glace, en regard de l'électrode formant la zone tactile sélectionnée. L'effet du doigt s'ajoute aux capacités parasites et modifie ainsi la capacité totale vue par le système électronique de commande de la montre. Le système électronique de commande logé dans la boîte de la montre va détecter cette variation de capacité et en déduire l'instruction correspondante. En réponse à l'introduction de cette donnée, le circuit électronique de commande va effectuer les opérations requises.At rest, the tactile zones form, with the air from which they are separated by the watch glass, the two plates of a capacitor which has a certain value of capacitance. This capacity value is fixed by the sum of the various parasitic capacitances of the electronic system seen by an electrode forming a tactile zone. This capacity value will be modified when the user places his finger on the outer surface of the ice, opposite the electrode forming the selected touch zone. The effect of the finger is added to the parasitic capacitances and thus modifies the total capacity seen by the electronic control system of the watch. The electronic control system housed in the watch case will detect this variation of capacity and deduce the corresponding instruction. In response to the introduction of this data, the electronic control circuit will perform the required operations.
On comprendra que, pour un bon fonctionnement d'une montre à zones tactiles de type capacitif, la détection par le système électronique de la montre de la variation de la capacité de la zone tactile sélectionnée par l'utilisateur qui pose son doigt dessus doit se faire de manière aussi précise que possible. Or, selon le type de matériau utilisé pour fabriquer la montre, il peut arriver que la variation de la capacité induite par le doigt de l'utilisateur posé sur la glace de la montre soit très faible en regard de la valeur des capacités parasites et soit donc difficile à détecter. Par suite, le système électronique de détection de la montre risque de ne pas pouvoir détecter la présence du doigt de l'utilisateur en regard de la zone tactile sélectionnée et de ne pas commander l'opération souhaitée par l'utilisateur, ce qui est problématique.It will be understood that, for a good operation of a capacitive type touch zone watch, the detection by the electronic system of the watch of the variation of the capacity of the touch zone selected by the user who places his finger on it must be do as accurately as possible. However, depending on the type of material used to make the watch, it may happen that the variation in the capacity induced by the user's finger on the watch is very small compared to the value of the parasitic capacitances and either therefore difficult to detect. As a result, the electronic detection system of the watch may not be able to detect the presence of the finger of the user next to the selected touch zone and not to control the desired operation by the user, which is problematic .
Dans le cas d'une montre comprenant un boîtier métallique, ce problème ne se pose pas car l'utilisateur, en portant la montre à son poignet, fixe le potentiel de son corps au potentiel interne de référence connu par le système électronique de la montre. Ainsi, lorsque l'utilisateur pose un doigt sur la glace de la montre, tous les éléments impliqués dans la détection de la variation de capacité, y compris le porteur de la montre, sont portés à un même potentiel qui est le potentiel interne de référence connu par le système électronique de la montre. En effet, ces éléments sont compris dans une boucle électrique fermée qui se forme entre le doigt de la main droite de l'utilisateur et le poignet gauche de celui-ci. Par conséquent, tous les éléments sont au même potentiel interne de référence du système électronique de la montre, de sorte que l'effet capacitif supplémentaire induit par le doigt de l'utilisateur posé sur la touche tactile a toujours sensiblement la même valeur quelles que soient les circonstances, ce qui permet d'améliorer significativement les capacités de détection du système électronique de détection de la montre.In the case of a watch comprising a metal case, this problem does not arise because the user, by wearing the watch on his wrist, sets the potential of his body to the internal reference potential known by the electronic system of the watch . Thus, when the user places a finger on the ice of the watch, all the elements involved in the detection of the variation of capacity, including the wearer of the watch, are brought to the same potential which is the internal reference potential. known by the electronic system of the watch. Indeed, these elements are included in a closed electric loop which is formed between the finger of the right hand of the user and the left wrist of it. Therefore, all the elements are at the same internal reference potential of the electronic system of the watch, so that the additional capacitive effect induced by the finger of the user placed on the touch key always has substantially the same value regardless of the circumstances, which significantly improves the detection capabilities of the electronic detection system of the watch.
Le problème se pose avec des boîtes de montre réalisées en un matériau non conducteur de l'électricité tel qu'un matériau plastique. En effet, dans ce cas, le potentiel du porteur de la montre n'est pas fixé au potentiel interne de référence du système électronique de la montre et est donc flottant. Par suite, le potentiel du porteur de la montre fluctue considérablement d'une personne à l'autre et selon les circonstances du moment, de sorte que la variation de capacité induite par le doigt du porteur posé sur la glace de la montre n'est pas reproductible et que l'on peut se retrouver dans des situations dans lesquelles le système électronique de la montre n'est pas capable de détecter la présence du doigt du porteur sur la touche tactile. Pour obvier à ce problème, une solution consisterait par exemple à charger la matière plastique avec des particules conductrices. Mais dans ce cas, les particules conductrices impartissent au matériau plastique une couleur sombre et privent le concepteur de la montre de toute liberté au niveau du choix de la couleur de la boîte de montre.The problem arises with watch cases made of a non-electrically conductive material such as a plastic material. Indeed, in this case, the potential of the wearer of the watch is not fixed to the internal reference potential of the electronic system of the watch and is therefore floating. As a result, the potential of the wearer of the watch fluctuates considerably from one person to another and according to the circumstances of the moment, so that the capacity variation induced by the wearer's finger on the ice of the watch is not reproducible and that can be found in situations in which the electronic system of the watch is not able to detect the presence of the wearer's finger on the touch key. To obviate this problem, a solution would for example to charge the plastic with conductive particles. But in this case, the conductive particles impart to the plastic material a dark color and deprive the designer of the watch of any freedom in the choice of the color of the watch case.
Le document
Le document
La présente invention a pour but de pallier les inconvénients susmentionnés ainsi que d'autres encore en procurant une montre-bracelet à zones tactiles de type capacitif comprenant des moyens qui permettent de fixer au même potentiel électrique le système de détection et le porteur de la montre.The present invention aims to overcome the aforementioned drawbacks as well as others by providing a capacitive-type touch-zone wristwatch comprising means for fixing the detection system and the wearer of the watch to the same electrical potential. .
A cet effet, la présente invention concerne une montre-bracelet à zones tactiles de type capacitif comprenant une boîte réalisée en un matériau non conducteur de l'électricité, cette boîte comportant une trappe de pile dans laquelle est logée une pile et qui est fermée par un couvercle de pile conducteur de l'électricité, le couvercle de pile conducteur de l'électricité étant monté sur la boîte de montre avec interposition d'un joint d'étanchéité conducteur de l'électricité entre le couvercle de pile et une électrode de la pile.For this purpose, the present invention relates to a capacitive-type touch-zone wristwatch comprising a box made of a non-electrically conductive material, this box comprising a battery door in which a battery is housed and which is closed by an electrically conductive battery cover, the electrically conductive battery cover being mounted on the watch case with the interposition of an electrically conductive gasket between the battery cover and an electrode of the battery; battery.
Grâce à ces caractéristiques, la présente invention procure une montre-bracelet à zones tactiles de type capacitif dont la boîte, bien que réalisée en un matériau non conducteur de l'électricité, permet malgré tout que tous les éléments, y compris le corps du porteur de la montre, impliqués dans la détection de la variation de capacité de la zone tactile soient portés à un même potentiel électrique. Il est ainsi possible d'éviter pratiquement toute fluctuation de la valeur de la capacité formée par le doigt du porteur de la montre posé sur la glace de la montre en regard de la touche tactile désirée et d'assurer par conséquent un fonctionnement correct de la montre. En effet, grâce à la présence du joint d'étanchéité conducteur de l'électricité, lorsque l'utilisateur pose son doigt sur la glace de la montre, il se forme une boucle fermée entre le doigt de l'utilisateur, la glace de montre, la zone tactile en regard de laquelle le doigt de l'utilisateur est posé, la plaquette de circuit imprimé sur laquelle est monté le circuit électronique de commande des zones tactiles, la pile, le couvercle de pile avec lequel la pile est en contact via le joint d'étanchéité et le poignet de l'utilisateur avec lequel le couvercle de pile est en contact.Thanks to these features, the present invention provides a capacitive-type touch-zone wristwatch whose box, although made of a non-electrically conductive material, still allows all the elements, including the wearer's body. of the watch, involved in the detection of the capacitance variation of the touch zone are brought to the same electrical potential. It is thus possible to avoid practically any fluctuation of the value of the capacitance formed by the finger of the wearer of the watch placed on the ice of the watch opposite the desired touch key and to consequently ensure a correct functioning of the shows. Indeed, thanks to the presence of the conductive gasket of electricity, when the user puts his finger on the ice of the watch, it forms a closed loop between the user's finger, the watch ice , the touch zone next to which the user's finger is placed, the printed circuit board on which is mounted the electronic control circuit of the touch zones, the battery, the battery cover with which the battery is in contact via the seal and the wrist of the user with which the battery cover is in contact.
D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit et d'un exemple de réalisation d'une montre à zones tactiles de type capacitif selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement en liaison avec le dessin annexé sur lequel la figure unique est une représentation schématique en coupe transversale d'une montre à zones tactiles de type capacitif équipée d'une trappe de pile selon l'invention.Other features and advantages of the present invention will emerge more clearly from the following detailed description and an example embodiment of a capacitive-type touch zone watch according to the invention, this example being given for purely illustrative purposes and non-limiting only in connection with the accompanying drawing in which the single figure is a schematic cross-sectional representation of a touch-type capacitive zone watch equipped with a battery door according to the invention.
La présente invention procède de l'idée générale inventive qui consiste à équiper la trappe de pile d'une montre à touches tactiles dont la boîte est réalisée en un matériau non conducteur de l'électricité d'un couvercle de pile conducteur de l'électricité muni d'un joint d'étanchéité réalisé en un matériau conducteur tel qu'un matériau élastomère chargé de particules conductrices de façon que, lorsque l'utilisateur de la montre pose un doigt sur la glace de la montre, l'ensemble des éléments de la montre impliqués dans la détection de la variation de capacité, y compris le corps de l'utilisateur, soient portés à un même potentiel électrique qui correspond au potentiel interne de référence du système électronique de la montre. Il est ainsi possible de fixer au même potentiel électrique le système de détection et le porteur de la montre, ce qui permet d'améliorer significativement la capacité du système électronique de la montre à détecter l'effet capacitif additionnel induit par le doigt de l'utilisateur posé sur la glace tactile et ainsi de garantir un fonctionnement fiable de la montre.The present invention proceeds from the general inventive idea of equipping the battery door with a touch-sensitive watch whose box is made of a non-electrically conductive material of an electrically conductive battery cover. provided with a seal made of a conductive material such as an elastomeric material loaded with conductive particles so that, when the user of the watch puts a finger on the ice of the watch, all the elements of the watch involved in the detection of the variation of capacity, including the body of the user, are brought to the same electrical potential which corresponds to the internal reference potential of the electronic system of the watch. It is thus possible to fix the detection system and the wearer of the watch at the same electrical potential, which makes it possible to significantly improve the ability of the electronic system of the watch to detect the additional capacitive effect induced by the finger of the watch. user on the touch screen and thus ensure reliable operation of the watch.
La figure unique annexée à la présente demande de brevet est une vue schématique en coupe transversale d'une montre-bracelet à zones tactiles de type capacitif selon l'invention. Désignée dans son ensemble par la référence numérique générale 1, cette montre comprend une glace transparente 2 réalisée en un matériau organique ou minéral. Cette glace recouvre un dispositif analogique 4 d'affichage de l'heure comprenant un cadran 6 au-dessus duquel se déplacent une aiguille des heures 8 et une aiguille des minutes 10. Sur la face 12 de la glace de montre 2 en regard du dispositif d'affichage de l'heure 4 est structurée au moins une électrode formant une zone tactile 14. Cette zone tactile 14 est réalisée en un matériau transparent conducteur de l'électricité tel que de l'oxyde d'étain-indium mieux connu sous sa dénomination anglo-saxonne indium-tin oxyde ou ITO.The single figure appended to the present patent application is a schematic cross-sectional view of a capacitive-type touch-zone wristwatch according to the invention. Designated as a whole by the general numerical reference 1, this watch comprises a
La zone tactile 14 forme avec l'air dont elle est séparée par la glace de montre 2 les deux armatures d'un condensateur C2 qui présente une valeur de capacité déterminée. Cette valeur de capacité externe C2 est formée par l'ensemble des capacités parasites réparties autour de l'électrode, aussi bien à l'intérieur de la montre (circuit imprimé 22, éléments métalliques, moteurs, connecteurs et autres) qu'à l'extérieur (bras du porteur, environnement).The
La valeur de la capacité C2 est modifiée lorsque l'utilisateur pose son doigt 16 sur la glace de montre 2, en regard de la zone tactile 14. Cette zone tactile 14 est reliée à un circuit intégré de commande 18 au moyen d'un connecteur 20 qui s'étend verticalement entre la glace de montre 2 et un support à circuits imprimés 22 sur lequel est monté le circuit intégré de commande 18. Le connecteur 20 est un connecteur de type "zébra" qui conduit l'électricité selon la seule direction verticale.The value of the capacitor C2 is modified when the user places his
Lorsque l'utilisateur pose son doigt 16 sur la glace 2 en regard de la zone tactile 14, il modifie la valeur de la capacité C2 de cette zone tactile 16. Cette variation de capacité est détectée par le circuit intégré de commande 18 qui, en réponse à l'introduction de cette donnée, va exécuter les opérations correspondantes.When the user places his
Dans le cas d'une boîte de montre métallique, tous les éléments entrant dans la détection de la variation de la capacité d'une zone tactile, y compris le corps du porteur de la montre, sont à un même potentiel électrique correspondant au potentiel interne de référence du système électronique de la montre. En effet, ces composants font partie d'une boucle électrique qui se referme sur le doigt de l'utilisateur via le poignet de ce dernier. Par conséquent, tous les composants sont au même potentiel électrique, ce qui empêche des fluctuations de la valeur de la capacité additionnelle induite par le doigt de l'utilisateur et permet d'améliorer significativement l'efficacité de la détection de cette capacité additionnelle par le système électronique de la montre. La variation de la valeur de la capacité vue par le système de détection entre le doigt de l'utilisateur et la zone tactile considérée est ainsi optimisée, de sorte que les risques que le circuit électronique de commande ne détecte pas la présence du doigt de l'utilisateur sont évités.In the case of a metal watch case, all the elements entering the detection of the variation of the capacity of a tactile zone, including including the body of the wearer of the watch, are at the same electrical potential corresponding to the internal reference potential of the electronic system of the watch. Indeed, these components are part of an electric loop that closes on the user's finger via the wrist of the latter. Therefore, all the components are at the same electrical potential, which prevents fluctuations in the value of the additional capacitance induced by the user's finger and significantly improves the efficiency of the detection of this additional capacitance by the user. electronic system of the watch. The variation in the value of the capacity seen by the detection system between the user's finger and the touch zone in question is thus optimized, so that the risks that the electronic control circuit does not detect the presence of the finger of the are avoided.
Il n'en va pas de même dans le cas d'une montre à zones tactiles capacitives dont le boîtier est réalisé en un matériau non conducteur de l'électricité tel qu'un matériau plastique. En effet, le boîtier joue le rôle d'un élément électriquement isolant et empêche que la boucle électrique entre le doigt, les différents composants impliqués dans la détection de la variation de capacité de la zone tactile et le poignet de l'utilisateur se referme sur le doigt de ce dernier. Par suite, le corps de l'utilisateur qui joue un rôle dans la détection de variation de capacité est à un potentiel flottant par rapport au potentiel interne de la montre et l'effet capacitif additionnel induit par le doigt de l'utilisateur est difficile à discerner par le système de détection. Pour remédier à ce problème, une solution consisterait à charger la matière plastique avec des particules conductrices. Dans ce cas toutefois, le matériau plastique résultant serait de couleur sombre et le concepteur ne jouirait d'aucune liberté sur le choix de la couleur de la boîte de montre.This is not the case in the case of a capacitive touch zone watch whose housing is made of a non-electrically conductive material such as a plastic material. Indeed, the housing plays the role of an electrically insulating element and prevents the electric loop between the finger, the various components involved in the detection of the capacitance variation of the touch zone and the wrist of the user closes on the finger of the latter. As a result, the body of the user who plays a role in the detection of capacitance variation is at a floating potential with respect to the internal potential of the watch and the additional capacitive effect induced by the finger of the user is difficult to discern by the detection system. To remedy this problem, one solution would be to charge the plastic with conductive particles. In this case, however, the resulting plastic material would be dark in color and the designer would enjoy no freedom in choosing the color of the watch case.
Conformément à l'invention, la boîte 24 de la montre 1 comprend une trappe de pile 26 dans laquelle est logée une pile 28. Cette trappe de pile 26 est fermée par un couvercle 30 conducteur de l'électricité avec interposition d'un joint d'étanchéité 32 réalisé en un matériau conducteur de l'électricité entre le couvercle 30 conducteur de l'électricité et la pile 28. Ce joint 32 qui assure l'étanchéité de la trappe de pile 26 assure également la continuité de la conduction électrique entre l'un des pôles de la pile 28 et le couvercle 30 conducteur de l'électricité. Ce joint 32 peut être par exemple réalisé en un matériau élastomère chargé avec des particules conductrices. Le contact électrique entre le couvercle de pile 30 et la pile 28 peut encore être amélioré en disposant une couche de graisse conductrice entre ces deux éléments. L'autre pôle de la pile 28 est relié au support à circuits imprimés 22 pour l'alimentation du circuit intégré de commande 18 et de la zone tactile 14.According to the invention, the
Ainsi, grâce à la présente invention, tous les éléments intervenant dans la détection de la variation de capacité d'une zone tactile sont inclus dans une boucle conductrice fermée entre le doigt de l'utilisateur et le poignet de ce dernier. Plus précisément, le joint d'étanchéité 32 conducteur de l'électricité sert à fermer une boucle 34 entre le doigt 16 de l'utilisateur posé sur la glace 2 de la montre 1, la glace 2, la zone tactile 14, le circuit intégré de commande 18, la pile 28, le joint d'étanchéité 32, le couvercle de pile 30 et le poignet de l'utilisateur 36. Il se forme ainsi une capacité électrique C2 entre le poignet de l'utilisateur 36, le couvercle de pile 30, le joint d'étanchéité 32, la pile 28, le support à circuits imprimés 22, le connecteur électrique 20, la zone tactile 14 et la glace 2 de la montre 1. Tous ces éléments étant fixés au même potentiel électrique, cela permet d'améliorer significativement l'effet capacitif additionnel C1 induit par le doigt de l'utilisateur et ainsi d'optimiser la variation de la valeur de la capacité vue par le système de détection. On évite ainsi l'interprétation erronée des fluctuations de capacité par le circuit intégré de commande de la montre.Thus, thanks to the present invention, all the elements involved in the detection of the capacitance variation of a touch zone are included in a closed conductive loop between the user's finger and the wrist of the latter. More specifically, the electrically
Claims (4)
- Wristwatch with capacitive touch zones (14) comprising a case (24) made of a non electrically conductive material, said case (24) including a housing in which a battery (28) is housed and which is closed by an electrically conductive battery cover (30), the electrically conductive battery cover (30) being mounted on the watch case (24) with the interposition of an electrically conductive sealing gasket (32) between the electrically conductive battery cover (30) and one of the terminals of the battery (28).
- Wristwatch according to claim 1, characterized in that the battery cover (30) is made of an electrically conductive metallic material.
- Wristwatch according to any of claims 1 or 2, characterized in that the sealing gasket (32) is made of an elastomeric material filled with conductive particles.
- Wristwatch according to any of claims 1 to 3, characterized in that a layer of conductive grease is arranged between the battery cover (30) and the sealing gasket (32).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11770446.0A EP2616888B1 (en) | 2010-12-07 | 2011-10-17 | Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10194005A EP2463733A1 (en) | 2010-12-07 | 2010-12-07 | Watch with capacitive touch-sensitive areas including a battery compartment sealed by an electrically conductive cover |
PCT/EP2011/068118 WO2012076225A1 (en) | 2010-12-07 | 2011-10-17 | Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover |
EP11770446.0A EP2616888B1 (en) | 2010-12-07 | 2011-10-17 | Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2616888A1 EP2616888A1 (en) | 2013-07-24 |
EP2616888B1 true EP2616888B1 (en) | 2014-09-24 |
Family
ID=43500475
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10194005A Withdrawn EP2463733A1 (en) | 2010-12-07 | 2010-12-07 | Watch with capacitive touch-sensitive areas including a battery compartment sealed by an electrically conductive cover |
EP11770446.0A Active EP2616888B1 (en) | 2010-12-07 | 2011-10-17 | Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10194005A Withdrawn EP2463733A1 (en) | 2010-12-07 | 2010-12-07 | Watch with capacitive touch-sensitive areas including a battery compartment sealed by an electrically conductive cover |
Country Status (7)
Country | Link |
---|---|
US (1) | US9016935B2 (en) |
EP (2) | EP2463733A1 (en) |
JP (1) | JP5503812B2 (en) |
CN (1) | CN103238121B (en) |
HK (1) | HK1187696A1 (en) |
RU (1) | RU2564042C2 (en) |
WO (1) | WO2012076225A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2784607B1 (en) * | 2013-03-28 | 2017-01-18 | ETA SA Manufacture Horlogère Suisse | Watch comprising a flange |
GB2512597B (en) * | 2013-04-02 | 2016-10-19 | Metasphere Ltd | Electronic devices |
EP2796947A1 (en) * | 2013-04-24 | 2014-10-29 | ETA SA Manufacture Horlogère Suisse | System for detecting the closure of the case of a portable object |
US9582034B2 (en) | 2013-11-29 | 2017-02-28 | Motiv, Inc. | Wearable computing device |
KR101742584B1 (en) * | 2015-09-02 | 2017-06-01 | 주식회사 하이딥 | Touch pressure detectable touch input device |
US10503271B2 (en) * | 2015-09-30 | 2019-12-10 | Apple Inc. | Proximity detection for an input mechanism of an electronic device |
US11046496B2 (en) | 2016-10-12 | 2021-06-29 | Hewlett-Packard Development Company, L.P. | Protective device for electronic device |
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US2801276A (en) * | 1953-12-17 | 1957-07-30 | Electro Acid Corp | Electric storage battery |
JPS5437658Y2 (en) * | 1975-01-10 | 1979-11-10 | ||
US4090353A (en) * | 1975-01-10 | 1978-05-23 | Sharp Kabushiki Kaisha | Touch switch controlled time information correction with safety lock in an electronic wristwatch |
US4048796A (en) * | 1975-06-30 | 1977-09-20 | Sharp Kabushiki Kaisha | Touch sensitive electrodes formed on the frame of an electronic wristwatch |
JPS5292564A (en) * | 1976-01-29 | 1977-08-04 | Seiko Instr & Electronics Ltd | Electronic wrist watch |
US4073132A (en) * | 1976-03-15 | 1978-02-14 | Sigurd Frohlich | Watch case construction |
US4533256A (en) * | 1983-12-29 | 1985-08-06 | Divers Supply Co., Inc. | Dive timer |
FR2717917B1 (en) * | 1994-03-24 | 1996-05-03 | Asulab Sa | Watch with a manual control device. |
US5642561A (en) * | 1996-02-09 | 1997-07-01 | Micron Communications, Inc. | Methods of producing thin profile batteries and battery terminal housing members |
DE69926912T2 (en) * | 1998-12-22 | 2006-02-09 | Citizen Watch Co., Ltd., Nishitokyo | TIME METER |
TW503344B (en) * | 2000-02-02 | 2002-09-21 | Asulab Sa | Crystal for a telephone watch |
US6868046B2 (en) * | 2000-11-17 | 2005-03-15 | Asulab S.A. | Electronic watch including capacitive keys on its crystal |
EP1324160A1 (en) * | 2001-12-27 | 2003-07-02 | Asulab S.A. | Manual command means for executing the functions of an electronic watch |
US6885201B2 (en) * | 2002-12-05 | 2005-04-26 | Asuiab S.A. | Portable electronic device including capacitive water detection means and method of implementation |
ATE359493T1 (en) * | 2002-12-05 | 2007-05-15 | Asulab Sa | ELECTRONIC DEVICE AND METHOD WITH A CAPACITIVE WATER SENSOR INTEGRATED THEREIN |
EP1734422A1 (en) * | 2005-06-14 | 2006-12-20 | Asulab S.A. | Assembly of a touch-sensitive glass on a case |
-
2010
- 2010-12-07 EP EP10194005A patent/EP2463733A1/en not_active Withdrawn
-
2011
- 2011-10-17 JP JP2013538114A patent/JP5503812B2/en active Active
- 2011-10-17 RU RU2013131073/28A patent/RU2564042C2/en not_active IP Right Cessation
- 2011-10-17 US US13/878,517 patent/US9016935B2/en active Active
- 2011-10-17 CN CN201180058711.9A patent/CN103238121B/en active Active
- 2011-10-17 EP EP11770446.0A patent/EP2616888B1/en active Active
- 2011-10-17 WO PCT/EP2011/068118 patent/WO2012076225A1/en active Application Filing
-
2014
- 2014-01-22 HK HK14100685.4A patent/HK1187696A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
JP5503812B2 (en) | 2014-05-28 |
US9016935B2 (en) | 2015-04-28 |
WO2012076225A1 (en) | 2012-06-14 |
RU2013131073A (en) | 2015-01-20 |
CN103238121B (en) | 2016-03-02 |
HK1187696A1 (en) | 2014-04-11 |
EP2616888A1 (en) | 2013-07-24 |
US20130201803A1 (en) | 2013-08-08 |
JP2013542444A (en) | 2013-11-21 |
RU2564042C2 (en) | 2015-09-27 |
EP2463733A1 (en) | 2012-06-13 |
CN103238121A (en) | 2013-08-07 |
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