WO2008017182A1 - Method and device or controlling the quality of a filtration cartridge and vessel with such a device - Google Patents

Method and device or controlling the quality of a filtration cartridge and vessel with such a device Download PDF

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Publication number
WO2008017182A1
WO2008017182A1 PCT/CH2007/000383 CH2007000383W WO2008017182A1 WO 2008017182 A1 WO2008017182 A1 WO 2008017182A1 CH 2007000383 W CH2007000383 W CH 2007000383W WO 2008017182 A1 WO2008017182 A1 WO 2008017182A1
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WO
WIPO (PCT)
Prior art keywords
filter cartridge
water
filtered
control device
light signal
Prior art date
Application number
PCT/CH2007/000383
Other languages
French (fr)
Inventor
Jean-Luc Thuliez
Raphaël FLEURY
Original Assignee
Domteknika S.A.
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 Domteknika S.A. filed Critical Domteknika S.A.
Publication of WO2008017182A1 publication Critical patent/WO2008017182A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/68Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/44Parts or details or accessories of beverage-making apparatus
    • A47J31/60Cleaning devices
    • A47J31/605Water filters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus
    • C02F2201/006Cartridges
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/005Processes using a programmable logic controller [PLC]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00Location of water treatment or water treatment device
    • C02F2307/04Location of water treatment or water treatment device as part of a pitcher or jug

Definitions

  • the present invention relates to a method for controlling the quality of a filter cartridge disposed at the inlet of a container comprising a water inlet to be filtered, a filtered water tank, said filter cartridge and a control device, provided with power supply means, arranged to determine the state of wear of this filter cartridge.
  • filtered water free of limescale, PCBs, chlorides, bacteria, etc.
  • This filtered or purified water can be used for consumption, in particular the preparation of coffee and tea or for use in steam appliances such as irons and aquariums.
  • the filter cartridges have a determined filtration capacity and the effectiveness of their action is ensured as long as this filtration capacity is not exceeded. In some cases, this filtration capacity, which is indicated by the manufacturer, is of the order of 150 liters of water.
  • the cartridge with filter cartridge does not usually have no equipment capable of counting the volume of filtered water, or at least very roughly. Therefore, it is difficult for a user to know if his filter has or has not reached its maximum filtration capacity, that is to say if it is still effective or not.
  • the present invention proposes to overcome these drawbacks by developing a method and realizing a device for controlling the quality of a water filtering cartridge which makes it possible, on the one hand, to accurately measure the volume of filtered water, and on the other hand, to indicate by signals the state of use of the filter cartridge to indicate whether or not the cartridge is still effective.
  • the volume of the water filtered by said filter cartridge is measured in that it is recorded using an electronic circuit for managing the control device, successive volumes of water filtered by this filter cartridge, and in that a corresponding light signal is emitted, on the one hand, to the state of charge of the filtering means, power supply of the control device and, secondly, in the qualitative state of the filter cartridge according to the total volume of water actually filtered by said cartridge.
  • the volume of water is measured by counting the flow time of the water to be filtered to the filter cartridge, this flow being carried out at a substantially constant flow rate.
  • said electronic management circuit automatically engages each passage of water to be filtered in the direction of the filter cartridge and emits a light signal corresponding to the state of charge of the power supply means and according to a color code corresponding to the qualitative status of the filter cartridge.
  • This light signal is preferably a red flashing signal when the filtration capacity of the filter cartridge is reached and a flashing green signal until the filtration capacity of the cartridge is reached.
  • control device comprises measuring means arranged to determine the volume of the water filtered by said filter cartridge, means for recording arranged to record, by means of an electronic management circuit, successive volumes of water filtered by this filter cartridge, and display means arranged to emit a corresponding light signal, on the one hand, to the state of charge of the supply means of said control device and, secondly, to the qualitative state of the filter cartridge as a function of the total volume of water actually filtered by said filter cartridge.
  • the measuring means for determining the volume of water filtered by said filter cartridge comprise a measuring element arranged to count the flow time of the water to be filtered towards the filter cartridge, this flow being performed at a substantially constant rate.
  • the device further comprises means arranged so that said electronic management circuit automatically engages each passage of water to be filtered in the direction of the filter cartridge.
  • said electronic management circuit comprises an automatic engagement sensor sensitive to the passage of the water to be filtered in the direction of the filter cartridge.
  • said interlocking sensor advantageously comprises a flexible tongue comprising two electrically conductive surfaces deposited on an insulating support.
  • the display means arranged to emit a light signal comprise at least one element emitting a light signal in correspondence with the state of charge of the power supply means of said device and according to a color code corresponding to the qualitative status of the filter cartridge.
  • the object of the invention is finally achieved by a container equipped with a device for controlling the quality of a filter cartridge as mentioned above.
  • FIG. 1 is a schematic view showing a partial view of the closure element of a container equipped with the quality control device of a filter cartridge according to the invention
  • FIG. 2 is a partial perspective view of the closure element of FIG. 1, and
  • FIG. 3 is a diagrammatic plan view of a container equipped with the closure element of FIGS. 1 and 2.
  • a container 10 shown schematically in FIG. 3 is in the form of a gravity type water jug comprising a reservoir 11 provided with a handle 12 and a removable closure element 13 placed on the top of the tank 11 and containing a device 14 for controlling the quality of a filter cartridge 15 housed in a filter holder 16 disposed below the control device 14.
  • This filter holder 16 is fitted into the open end of the reservoir 11, and the closure element 13 containing the control device 14 is detachably fitted into the opening of the holder. filter 16 to allow the change of the filter cartridge 15 when it is no longer operational.
  • the container 10 could have any other aspect and its construction could be carried out differently.
  • the removable closure element 13 covers the entire surface of the container 10 and the fact that the entire control device 14 is housed inside this closure element 13 is particularly advantageous and facilitates the change of filter cartridge and the cleaning of the container.
  • the removable closure element 13 illustrated in greater detail in FIGS. 1 and 2, consists of a body 20 having an upper portion 21 and a lower portion 22 arranged to cooperate in a removable manner, such as by clipping, with the filter holder 16 of the filter cartridge 15.
  • the filter holder 16 defines a housing arranged to receive in a sealed manner said cartridge 15 which is held in position in its housing by a seal 23.
  • the upper part 21 of the removable closure member 13 comprises a valve 24 articulated on a transverse axis 25 and arranged to close a flow orifice 26 communicating with the reservoir 11 of the container 10.
  • this upper portion 21 is provided with a receiving groove 25 water to be filtered which is in the form of a funnel 27 intended to receive the water to be filtered and to direct it on the filtering cartridge 15.
  • the funnel 27 is integrated into the body 20 which serves as a support for the control device 14.
  • This control device 14 comprises a water presence detector 30 which is in the form of a flexible tongue provided, at its free end, with two branches 30a and 30b, said branches each having a surface, respectively 31a and 31b electrically conductive.
  • This detector is disposed at the outlet of the funnel 27 which directs the stream of water to be filtered on the filter cartridge 15.
  • the control device 14 further comprises a power supply consisting of a battery 32, or a rechargeable battery, arranged for supplying an electronic management circuit 33 whose functions will be described below.
  • the control device 14 also comprises display means 34 arranged to emit a light signal according to the state of the filter cartridge 15, which depends on the total volume of water that has been filtered by said cartridge, and the state of the battery 32.
  • the electronic management circuit 33 is concentrated on a printed circuit support and comprises in particular a time counter and a memory unit for accounting for the volume of the filtered water.
  • the control device 14 operates as follows.
  • the electronic management circuit 33 which is normally in standby, automatically engages when the first drops of water to be filtered reach the water detector 30 and is triggered a few seconds after stopping the arrival of water. This is due to the fact that the electrical resistance between the two contacts 31a and 31b drops sharply in the presence of water. This phenomenon is taken into account by the water presence detector 30 and is used to turn on the water meter.
  • This water meter works on the principle of time measurement, assuming that the flow rate of the water flow is constant. This assumption is acceptable because the water to be filtered is poured through the funnel 27, which constitutes a kind of reserve which flows through the orifice disposed at the base of this funnel in the form of a jet. substantially constant flow rate.
  • the memory unit accounts for the successive volumes of water to be filtered, knowing that the entire electronic circuit is in standby during periods when the user does not pour water on the cartridge. As a result, the memory unit accumulates the data relating to the volumes of water to be filtered entering the container and communicates this data to an electronic processor which transmits the command to emit a signal suitable for the display means at each time. filling the container.
  • These display means 34 are preferably in the form of light-emitting diodes (LEDs) arranged to, on the one hand, emit a signal indicating the operating state of the battery 32 and, on the other hand, a signal indicating the processing capacity of the filter cartridge 15.
  • LEDs light-emitting diodes
  • this flashing light is green as long as the treatment capacity of the filter cartridge 15 is not reached and red when the processing capacity of the cartridge is exceeded.
  • the threshold that defines the processing capacity of the cartridge may be 150 liters. A green LED illuminates until the cartridge has filtered about 150 liters of water and then a red LED goes off as soon as the threshold of 150 liters is reached.
  • the control device is effective and ensures the quality of operation of the cartridge.
  • the punctual engagement and tripping of the electronic management circuit makes it possible to limit the consumption of electrical energy and, consequently, to extend the life of the device by increasing the life of the battery.
  • the shape of the container can be changed without affecting its mode of operation.

Abstract

The invention relates to a method and a device for controlling the quality of a filtration cartridge of a vessel for containing filtered water, and to a vessel provided with such a control device. The control device (14) is integrated in the removable lid (13) of the vessel and is located above the filtration cartridge (15) provided in a cartridge holder (16) that is engaged in the vessel opening. The control device (14) comprises a water sensor (30) in the shape of a tab comprising two electrically conducting branches (30a, 30b). The sensor is provided at the outlet of a funnel (27) that directs the flow of water to be filtered onto the filtration cartridge (15). The control device (14) includes a power supply (32) for supplying power to an electronic management device (33) and display means (34) for emitting a light signal according to the charge status of the power supply (32) and to the operational state of the filtration cartridge (15) that depends on the volume of filtered water. The electronic management circuit (33) is switched on automatically when the first drops of water contact the sensor (30), measures the volume of filtered water and switches off at the end of the vessel filling.

Description

PROCEDE ET DISPOSITIF DE CONTROLE DE LA QUALITE D'UNE CARTOUCHE FILTRANTE ET RECIPIENT EQUIPE D'UN TEL DISPOSITIF METHOD AND DEVICE FOR CONTROLLING THE QUALITY OF A FILTER CARTRIDGE AND CONTAINER EQUIPPED WITH SUCH A DEVICE
Domaine techniqueTechnical area
La présente invention concerne un procédé de contrôle de la qualité d'une cartouche filtrante disposée à l'entrée d'un récipient comportant une entrée d'eau à filtrer, un réservoir d'eau filtrée, ladite cartouche filtrante et un dispositif de contrôle, pourvu de moyens d'alimentation électrique, agencé pour déterminer l'état d'usure de cette cartouche filtrante.The present invention relates to a method for controlling the quality of a filter cartridge disposed at the inlet of a container comprising a water inlet to be filtered, a filtered water tank, said filter cartridge and a control device, provided with power supply means, arranged to determine the state of wear of this filter cartridge.
Elle concerne également un dispositif de contrôle de la qualité d'une cartouche filtrante pour la mise en œuvre de ce procédé, ladite cartouche filtrante étant disposée à l'entrée d'un récipient comportant une . entrée d'eau à filtrer, un réservoir d'eau filtrée, ladite cartouche filtrante, et ledit dispositif de contrôle, pourvu de moyens d'alimentation électrique, agencé pour déterminer l'état d'usure de cette cartouche filtrante.It also relates to a device for controlling the quality of a filter cartridge for the implementation of this method, said filter cartridge being disposed at the inlet of a container comprising a filter cartridge. water inlet to be filtered, a filtered water tank, said filter cartridge, and said control device, provided with power supply means, arranged to determine the state of wear of this filter cartridge.
Elle concerne enfin un récipient équipé d'un tel dispositif de contrôle de la qualité d'une cartouche filtrante.Finally, it relates to a container equipped with such a device for controlling the quality of a filter cartridge.
Technique antérieurePrior art
Pour de nombreuses applications domestiques notamment, il est avantageux de pouvoir disposer d'eau filtrée exempte de calcaire, de PCB, de chlorures, de bactéries etc. Cette eau filtrée ou purifiée peut être utilisée pour la consommation, en particulier la préparation du café et du thé ou pour une utilisation dans des appareils à vapeur tels que les fers à repasser, les aquariums.For many domestic applications in particular, it is advantageous to have filtered water free of limescale, PCBs, chlorides, bacteria, etc. This filtered or purified water can be used for consumption, in particular the preparation of coffee and tea or for use in steam appliances such as irons and aquariums.
Les cartouches filtrantes ont une capacité de filtration déterminée et l'efficacité de leur action n'est assurée pour autant que cette capacité de filtration ne soit pas dépassée. Dans certains cas, cette capacité de filtration, qui est indiquée par le fabricant, est de l'ordre de 150 litres d'eau. Les réservoirs à cartouche filtrante ne comportent habituellement pas d'équipement capable de compter le volume d'eau filtrée, ou du moins de façon très approximative. De ce fait, il est difficile, pour un utilisateur, de savoir si son filtre a ou n'a pas atteint sa capacité maximale de filtration, c'est-à-dire s'il est encore efficace ou non.The filter cartridges have a determined filtration capacity and the effectiveness of their action is ensured as long as this filtration capacity is not exceeded. In some cases, this filtration capacity, which is indicated by the manufacturer, is of the order of 150 liters of water. The cartridge with filter cartridge does not usually have no equipment capable of counting the volume of filtered water, or at least very roughly. Therefore, it is difficult for a user to know if his filter has or has not reached its maximum filtration capacity, that is to say if it is still effective or not.
Exposé de l'inventionPresentation of the invention
La présente invention se propose de pallier ces inconvénients en développant un procédé et en réalisant un dispositif de contrôle de la qualité d'une cartouche filtrante d'eau qui permet, d'une part, de mesurer avec précision le volume d'eau filtrée et, d'autre part, de signaler par des signaux l'état d'utilisation de la cartouche filtrante pour indiquer si la cartouche est ou non encore efficace.The present invention proposes to overcome these drawbacks by developing a method and realizing a device for controlling the quality of a water filtering cartridge which makes it possible, on the one hand, to accurately measure the volume of filtered water, and on the other hand, to indicate by signals the state of use of the filter cartridge to indicate whether or not the cartridge is still effective.
Ce but est atteint par le procédé selon l'invention, tel que défini en préambule, caractérisé en ce que l'on mesure le volume de l'eau filtrée par ladite cartouche filtrante, en ce que l'on enregistre, à l'aide d'un circuit électronique de gestion du dispositif de contrôle, des volumes successifs d'eau filtrée par cette cartouche filtrante, et en ce que l'on émet un signal lumineux correspondant, d'une part à l'état de charge des moyens d'alimentation électrique du dispositif de contrôle et, d'autre part, à l'état qualitatif de la cartouche filtrante en fonction du volume total d'eau effectivement filtrée par ladite cartouche.This object is achieved by the method according to the invention, as defined in the preamble, characterized in that the volume of the water filtered by said filter cartridge is measured in that it is recorded using an electronic circuit for managing the control device, successive volumes of water filtered by this filter cartridge, and in that a corresponding light signal is emitted, on the one hand, to the state of charge of the filtering means, power supply of the control device and, secondly, in the qualitative state of the filter cartridge according to the total volume of water actually filtered by said cartridge.
Selon un mode de réalisation préféré de l'invention, l'on mesure le volume d'eau en comptant le temps d'écoulement de l'eau à filtrer vers la cartouche filtrante, cet écoulement étant effectué à débit sensiblement constant.According to a preferred embodiment of the invention, the volume of water is measured by counting the flow time of the water to be filtered to the filter cartridge, this flow being carried out at a substantially constant flow rate.
De façon avantageuse, ledit circuit électronique de gestion s'enclenche automatiquement à chaque passage d'eau à filtrer en direction de la cartouche filtrante et il émet un signal lumineux en correspondance avec l'état de charge des moyens d'alimentation électrique et selon un code couleur en correspondance avec l'état qualitatif de la cartouche filtrante. Ce signal lumineux est de préférence un signal clignotant rouge lorsque la capacité de filtration de la cartouche filtrante est atteinte et un signal clignotant vert tant que la capacité de filtration de la cartouche n'est pas atteinte.Advantageously, said electronic management circuit automatically engages each passage of water to be filtered in the direction of the filter cartridge and emits a light signal corresponding to the state of charge of the power supply means and according to a color code corresponding to the qualitative status of the filter cartridge. This light signal is preferably a red flashing signal when the filtration capacity of the filter cartridge is reached and a flashing green signal until the filtration capacity of the cartridge is reached.
Ce but est également atteint par le dispositif selon l'invention tel que défini en préambule et caractérisé en ce que ledit dispositif de contrôle comporte des moyens de mesure agencés pour déterminer le volume de l'eau filtrée par ladite cartouche filtrante, des moyens d'enregistrement agencés pour enregistrer, à l'aide d'un circuit électronique de gestion, des volumes successifs d'eau filtrée par cette cartouche filtrante, et des moyens d'affichage agencés pour émettre un signal lumineux correspondant, d'une part, à l'état de charge des moyens d'alimentation dudit dispositif de contrôle et, d'autre part, à l'état qualitatif de la cartouche filtrante en fonction du volume total d'eau effectivement filtrée par ladite cartouche filtrante.This object is also achieved by the device according to the invention as defined in the preamble and characterized in that said control device comprises measuring means arranged to determine the volume of the water filtered by said filter cartridge, means for recording arranged to record, by means of an electronic management circuit, successive volumes of water filtered by this filter cartridge, and display means arranged to emit a corresponding light signal, on the one hand, to the state of charge of the supply means of said control device and, secondly, to the qualitative state of the filter cartridge as a function of the total volume of water actually filtered by said filter cartridge.
Selon un mode de réalisation préféré, les moyens de mesure pour déterminer le volume de l'eau filtrée par ladite cartouche filtrante comprennent un élément de mesure agencé pour compter le temps d'écoulement de l'eau à filtrer vers la cartouche filtrante, cet écoulement étant effectué à débit sensiblement constant.According to a preferred embodiment, the measuring means for determining the volume of water filtered by said filter cartridge comprise a measuring element arranged to count the flow time of the water to be filtered towards the filter cartridge, this flow being performed at a substantially constant rate.
D'une manière particulièrement avantageuse, le dispositif comprend en outre des moyens agencés pour que ledit circuit électronique de gestion s'enclenche automatiquement à chaque passage d'eau à filtrer en direction de la cartouche filtrante.In a particularly advantageous manner, the device further comprises means arranged so that said electronic management circuit automatically engages each passage of water to be filtered in the direction of the filter cartridge.
A et effet, ledit circuit électronique de gestion comporte un capteur d'enclenchement automatique sensible au passage de l'eau à filtrer en direction de la cartouche filtrante.A and indeed, said electronic management circuit comprises an automatic engagement sensor sensitive to the passage of the water to be filtered in the direction of the filter cartridge.
Selon une forme de réalisation préférée, ledit capteur d'enclenchement comporte avantageusement une languette souple comportant deux surfaces électriquement conductrices déposées sur un support isolant. Dans la forme de réalisation du dispositif selon l'invention, les moyens d'affichage agencés pour émettre un signal lumineux comportent au moins un élément émettant un signal lumineux en correspondance avec l'état de charge des moyens d'alimentation électrique dudit dispositif et selon un code couleur en correspondance avec l'état qualitatif de la cartouche filtrante.According to a preferred embodiment, said interlocking sensor advantageously comprises a flexible tongue comprising two electrically conductive surfaces deposited on an insulating support. In the embodiment of the device according to the invention, the display means arranged to emit a light signal comprise at least one element emitting a light signal in correspondence with the state of charge of the power supply means of said device and according to a color code corresponding to the qualitative status of the filter cartridge.
Le but de l'invention est enfin atteint par un récipient équipé d'un dispositif de contrôle de la qualité d'une cartouche filtrante tel que mentionné ci-dessus.The object of the invention is finally achieved by a container equipped with a device for controlling the quality of a filter cartridge as mentioned above.
Description sommaire des dessinsBrief description of the drawings
La présente invention et ses avantages seront mieux compris à la lecture de la description détaillée d'une mise en œuvre préférée du procédé de l'invention en référence aux dessins annexés, donnés à titre indicatif et non limitatif, dans lesquels:The present invention and its advantages will be better understood on reading the detailed description of a preferred implementation of the method of the invention with reference to the appended drawings, given by way of non-limiting indication, in which:
la figure 1 est une vue schématique représentant une vue partielle de l'élément de fermeture d'un récipient équipé du dispositif de contrôle de la qualité d'une cartouche filtrante selon l'invention,FIG. 1 is a schematic view showing a partial view of the closure element of a container equipped with the quality control device of a filter cartridge according to the invention,
la figure 2 est une vue partielle en perspective de l'élément de fermeture de la figure 1 , etFIG. 2 is a partial perspective view of the closure element of FIG. 1, and
la figure 3 est une vue schématique en plan d'un récipient équipé de l'élément de fermeture des figures 1 et 2.FIG. 3 is a diagrammatic plan view of a container equipped with the closure element of FIGS. 1 and 2.
Meilleure manière de réaliser l'inventionBest way to realize the invention
En référence aux figures, un récipient 10, représenté schématiquement par la figure 3, se présente sous la forme d'une cruche à eau du type à gravité comprenant un réservoir 11 muni d'une anse 12 et un élément de fermeture amovible 13 posé sur le dessus du réservoir 11 et renfermant un dispositif de contrôle 14 de la qualité d'une cartouche filtrante 15 logée dans un porte-filtre 16 disposé en dessous du dispositif de contrôle 14. Ce porte-filtre 16 est emboîté dans l'extrémité ouverte du réservoir 11 , et l'élément de fermeture 13 contenant le dispositif de contrôle 14 est emboîté de façon amovible dans l'ouverture du porte-filtre 16 afin de permettre le changement de la cartouche filtrante 15 lorsque celle-ci n'est plus opérationnelle. Le récipient 10 pourrait avoir n'importe quel autre aspect et sa construction pourrait être réalisée différemment. L'élément de fermeture amovible 13 recouvre toute la surface du récipient 10 et le fait que tout le dispositif de contrôle 14 soit logé à l'intérieur de cet élément de fermeture 13 est particulièrement avantageux et facilite le changement de cartouche filtrante et le nettoyage du récipient.Referring to the figures, a container 10, shown schematically in FIG. 3, is in the form of a gravity type water jug comprising a reservoir 11 provided with a handle 12 and a removable closure element 13 placed on the top of the tank 11 and containing a device 14 for controlling the quality of a filter cartridge 15 housed in a filter holder 16 disposed below the control device 14. This filter holder 16 is fitted into the open end of the reservoir 11, and the closure element 13 containing the control device 14 is detachably fitted into the opening of the holder. filter 16 to allow the change of the filter cartridge 15 when it is no longer operational. The container 10 could have any other aspect and its construction could be carried out differently. The removable closure element 13 covers the entire surface of the container 10 and the fact that the entire control device 14 is housed inside this closure element 13 is particularly advantageous and facilitates the change of filter cartridge and the cleaning of the container.
L'élément de fermeture amovible 13, illustré plus en détail par les figures 1 et 2, se compose d'un corps 20 ayant une partie supérieure 21 et une partie inférieure 22 agencée pour coopérer de façon amovible, telle que par clipsage, avec le porte-filtre 16 de la cartouche filtrante 15. Le porte-filtre 16 définit un logement agencé pour recevoir de façon étanche ladite cartouche 15 qui est maintenue en position dans son logement par un joint d'étanchéité 23. La partie supérieure 21 de l'élément de fermeture amovible 13 comporte un clapet 24 articulé sur un axe transversal 25 et agencé pour obturer un orifice d'écoulement 26 communiquant avec le réservoir 11 du récipient 10. Par ailleurs, cette partie supérieure 21 est pourvue d'une gorge réceptrice de l'eau à filtrer qui se présente sous la forme d'un entonnoir 27 destiné à recevoir l'eau à filtrer et à la diriger sur la cartouche filtrante 15. L'entonnoir 27 est intégré dans le corps 20 qui sert en outre de support au dispositif de contrôle 14.The removable closure element 13, illustrated in greater detail in FIGS. 1 and 2, consists of a body 20 having an upper portion 21 and a lower portion 22 arranged to cooperate in a removable manner, such as by clipping, with the filter holder 16 of the filter cartridge 15. The filter holder 16 defines a housing arranged to receive in a sealed manner said cartridge 15 which is held in position in its housing by a seal 23. The upper part 21 of the removable closure member 13 comprises a valve 24 articulated on a transverse axis 25 and arranged to close a flow orifice 26 communicating with the reservoir 11 of the container 10. In addition, this upper portion 21 is provided with a receiving groove 25 water to be filtered which is in the form of a funnel 27 intended to receive the water to be filtered and to direct it on the filtering cartridge 15. The funnel 27 is integrated into the body 20 which serves as a support for the control device 14.
Ce dispositif de contrôle 14 comporte un détecteur de présence d'eau 30 qui se présente sous la forme d'une languette souple pourvue, à son extrémité libre, de deux branches 30a et 30b, lesdites branches comportant chacune une surface, respectivement 31a et 31b, électriquement conductrice. Ce détecteur est disposé à la sortie de l'entonnoir 27 qui dirige le flux d'eau à filtrer sur la cartouche filtrante 15. Le dispositif de contrôle 14 comprend en outre une alimentation électrique constituée par une pile 32, ou une batterie rechargeable, agencée pour alimenter un circuit électronique de gestion 33 dont les fonctions seront décrites ci-dessous. Le dispositif de contrôle 14 comprend par ailleurs des moyens d'affichage 34 agencés pour émettre un signal lumineux en fonction de l'état de la cartouche filtrante 15, qui dépend du volume total d'eau qui a été filtré par ladite cartouche, et de l'état de la pile 32. Le circuit électronique de gestion 33 est concentré sur un support de circuit imprimé et comprend notamment un compteur de temps et une unité de mémoire pour comptabiliser le volume de l'eau filtrée.This control device 14 comprises a water presence detector 30 which is in the form of a flexible tongue provided, at its free end, with two branches 30a and 30b, said branches each having a surface, respectively 31a and 31b electrically conductive. This detector is disposed at the outlet of the funnel 27 which directs the stream of water to be filtered on the filter cartridge 15. The control device 14 further comprises a power supply consisting of a battery 32, or a rechargeable battery, arranged for supplying an electronic management circuit 33 whose functions will be described below. The control device 14 also comprises display means 34 arranged to emit a light signal according to the state of the filter cartridge 15, which depends on the total volume of water that has been filtered by said cartridge, and the state of the battery 32. The electronic management circuit 33 is concentrated on a printed circuit support and comprises in particular a time counter and a memory unit for accounting for the volume of the filtered water.
Le dispositif de contrôle 14 fonctionne comme suit. Le circuit électronique de gestion 33, qui est normalement en veille, s'enclenche automatiquement au moment où les premières gouttes d'eau à filtrer parviennent sur le détecteur de présence d'eau 30 et se déclenche quelques secondes après l'arrêt de l'arrivée de l'eau. Ceci est dû au fait que la résistance électrique entre les deux contacts 31a et 31b chute brutalement en présence de l'eau. Ce phénomène est pris en compte par le détecteur de présence d'eau 30 et est utilisé pour enclencher le compteur d'eau. Ce compteur d'eau fonctionne sur le principe de la mesure du temps en admettant que le débit du flux d'eau est constant. Cette hypothèse est acceptable du fait que l'eau à filtrer est versée par l'entonnoir 27, lequel constitue une sorte de réserve qui s'écoule à travers l'orifice disposé à la base de cet entonnoir sous la forme d'un jet à débit sensiblement constant. En connaissant, d'une part, le débit et, d'autre part, la durée de l'écoulement, il est possible de calculer le volume d'eau qui est versé sur la cartouche filtrante 15. L'unité de mémoire comptabilise les volumes successifs d'eau à filtrer, sachant que tout le circuit électronique est en veille pendant les périodes où l'utilisateur ne verse pas d'eau sur la cartouche. De ce fait l'unité de mémoire cumule les données relatives aux volumes d'eau à filtrer entrant dans le récipient et communique ces données à un processeur électronique qui transmet l'ordre d'émettre un signal approprié aux moyens d'affichage lors de chaque remplissage du récipient. Ces moyens d'affichage 34 se présentent de préférence sous la forme de diodes électroluminescentes (LED) agencées pour, d'une part, émettre un signal indiquant l'état de fonctionnement de la pile 32 et, d'autre part, un signal indiquant la capacité de traitement de la cartouche filtrante 15. Ainsi, aux premières gouttes d'eau entrant dans le dispositif de contrôle 14, si le signal émis est une lumière clignotante cela signifie que la pile est "en fonction" et que le dispositif de contrôle 14 est opérationnel, si la lumière est éteinte cela signifie que la pile doit être changée car le dispositif de contrôle 14 ne s'enclenche pas. En outre, cette lumière clignotante est verte tant que la capacité de traitement de la cartouche filtrante 15 n'est pas atteinte et rouge lorsque la capacité de traitement de la cartouche est dépassée. A titre d'exemple, le seuil qui définit la capacité de traitement de la cartouche peut être de 150 litres. Une LED verte s'allume jusqu'à ce que la cartouche ait filtré environ 150 litres d'eau et ensuite une LED rouge s'enclenche dés que le seuil des 150 litres est atteint.The control device 14 operates as follows. The electronic management circuit 33, which is normally in standby, automatically engages when the first drops of water to be filtered reach the water detector 30 and is triggered a few seconds after stopping the arrival of water. This is due to the fact that the electrical resistance between the two contacts 31a and 31b drops sharply in the presence of water. This phenomenon is taken into account by the water presence detector 30 and is used to turn on the water meter. This water meter works on the principle of time measurement, assuming that the flow rate of the water flow is constant. This assumption is acceptable because the water to be filtered is poured through the funnel 27, which constitutes a kind of reserve which flows through the orifice disposed at the base of this funnel in the form of a jet. substantially constant flow rate. By knowing, on the one hand, the flow rate and, on the other hand, the duration of the flow, it is possible to calculate the volume of water which is poured on the filtering cartridge 15. The memory unit accounts for the successive volumes of water to be filtered, knowing that the entire electronic circuit is in standby during periods when the user does not pour water on the cartridge. As a result, the memory unit accumulates the data relating to the volumes of water to be filtered entering the container and communicates this data to an electronic processor which transmits the command to emit a signal suitable for the display means at each time. filling the container. These display means 34 are preferably in the form of light-emitting diodes (LEDs) arranged to, on the one hand, emit a signal indicating the operating state of the battery 32 and, on the other hand, a signal indicating the processing capacity of the filter cartridge 15. Thus, with the first drops of water entering the control device 14, if the signal emitted is a flashing light, this means that the battery is "in operation" and that the device control 14 is operational, if the light is off it means that the battery must be changed because the control device 14 does not engage. In addition, this flashing light is green as long as the treatment capacity of the filter cartridge 15 is not reached and red when the processing capacity of the cartridge is exceeded. For example, the threshold that defines the processing capacity of the cartridge may be 150 liters. A green LED illuminates until the cartridge has filtered about 150 liters of water and then a red LED goes off as soon as the threshold of 150 liters is reached.
Le dispositif de contrôle est efficace et permet de garantir la qualité de fonctionnement de la cartouche. L'enclenchement et le déclenchement ponctuels du circuit électronique de gestion permettent de limiter la consommation en énergie électrique et, par conséquent, de prolonger la durée de vie du dispositif en augmentant la longévité de la pile. La forme du récipient peut être modifiée sans affecter son mode de fonctionnement. The control device is effective and ensures the quality of operation of the cartridge. The punctual engagement and tripping of the electronic management circuit makes it possible to limit the consumption of electrical energy and, consequently, to extend the life of the device by increasing the life of the battery. The shape of the container can be changed without affecting its mode of operation.

Claims

REVENDICATIONS
1. Procédé de contrôle de la qualité d'une cartouche filtrante disposée à l'entrée d'un récipient (10) comportant une entrée d'eau à filtrer, un réservoir d'eau filtrée (11), ladite cartouche filtrante (15) et un dispositif de contrôle (14), pourvu de moyens d'alimentation électrique (32), agencé pour déterminer l'état d'usure de cette cartouche filtrante, caractérisé en ce que l'on mesure le volume de l'eau filtrée par ladite cartouche filtrante (15), en ce que l'on enregistre, à l'aide d'un circuit électronique de gestion (33) du dispositif de contrôle (14), des volumes successifs d'eau filtrée par cette cartouche filtrante (15), et en ce que l'on émet un signal lumineux correspondant, d'une part à l'état de charge des moyens d'alimentation électrique (32) du dispositif de contrôle (14) et, d'autre part, à l'état qualitatif de la cartouche filtrante (15) en fonction du volume total d'eau effectivement filtrée par ladite cartouche.A method of controlling the quality of a filter cartridge disposed at the inlet of a container (10) having a water inlet to be filtered, a filtered water tank (11), said filter cartridge (15) and a control device (14), provided with power supply means (32), arranged to determine the state of wear of this filter cartridge, characterized in that the volume of the filtered water is measured by said filter cartridge (15) in that, by means of an electronic control circuit (33) of the control device (14), successive volumes of water filtered by this filter cartridge (15) are recorded. ), and in that a light signal corresponding to the state of charge of the power supply means (32) of the control device (14) is emitted and, on the other hand, to the qualitative status of the filter cartridge (15) as a function of the total volume of water actually filtered by said cartridge.
2. Procédé selon la revendication 1 , caractérisé en ce que l'on mesure le volume d'eau en comptant le temps d'écoulement de l'eau à filtrer vers la cartouche filtrante (15), cet écoulement étant effectué à débit sensiblement constant.2. Method according to claim 1, characterized in that the volume of water is measured by counting the flow time of the water to be filtered to the filter cartridge (15), this flow being carried out at a substantially constant flow rate. .
3. Procédé selon la revendication 1 , caractérisé en ce que ledit circuit électronique de gestion (33) s'enclenche automatiquement à chaque passage d'eau à filtrer en direction de la cartouche filtrante (15).3. Method according to claim 1, characterized in that said electronic management circuit (33) automatically engages each passage of water to be filtered in the direction of the filter cartridge (15).
4. Procédé selon la revendication 1, caractérisé en ce que le dispositif de contrôle (14) émet un signal lumineux en correspondance avec l'état de charge des moyens d'alimentation électrique (32).4. Method according to claim 1, characterized in that the control device (14) emits a light signal in correspondence with the state of charge of the power supply means (32).
5. Procédé selon la revendication 1 , caractérisé en ce que le dispositif de contrôle (14) émet un signal lumineux selon un code couleur en correspondance avec l'état qualitatif de la cartouche filtrante (15). 5. Method according to claim 1, characterized in that the control device (14) emits a light signal according to a color code corresponding to the qualitative state of the filter cartridge (15).
6. Procédé selon la revendication 5, caractérisé en ce que le signal lumineux est un signal clignotant rouge lorsque la capacité de filtration de la cartouche filtrante (15) est atteinte.6. Method according to claim 5, characterized in that the light signal is a blinking red signal when the filtration capacity of the filter cartridge (15) is reached.
7. Procédé selon la revendication 5, caractérisé en ce que le signal lumineux est un signal clignotant vert tant que la capacité de filtration de la cartouche filtrante (15) n'est pas atteinte.7. Method according to claim 5, characterized in that the light signal is a green flashing signal as long as the filtration capacity of the filter cartridge (15) is not reached.
8. Dispositif de contrôle de la qualité d'une cartouche filtrante pour la mise en œuvre du procédé selon les revendications précédentes, ladite cartouche filtrante étant disposée à l'entrée d'un récipient (10) comportant une entrée d'eau à filtrer, un réservoir d'eau filtrée (11), ladite cartouche filtrante (15), et ledit dispositif de contrôle (14), pourvu de moyens d'alimentation électrique (32), agencé pour déterminer l'état d'usure de cette cartouche filtrante, caractérisé en ce que ledit dispositif de contrôle (14) comporte des moyens de mesure agencés pour déterminer le volume de l'eau filtrée par ladite cartouche filtrante (15), des moyens d'enregistrement agencés pour enregistrer, à l'aide d'un circuit électronique de gestion (33), des volumes successifs d'eau filtrée par cette cartouche filtrante (15), et des moyens d'affichage agencés pour émettre un signal lumineux correspondant, d'une part, à l'état de charge des moyens d'alimentation (32) dudit dispositif de contrôle et, d'autre part, à l'état qualitatif de la cartouche filtrante (15) en fonction du volume total d'eau effectivement filtrée par ladite cartouche filtrante (15).8. Device for controlling the quality of a filter cartridge for implementing the method according to the preceding claims, said filter cartridge being disposed at the inlet of a container (10) having a water inlet to be filtered, a filtered water tank (11), said filter cartridge (15), and said control device (14), provided with power supply means (32), arranged to determine the state of wear of this filter cartridge , characterized in that said control device (14) comprises measuring means arranged to determine the volume of the water filtered by said filter cartridge (15), recording means arranged to record, with the aid of an electronic management circuit (33), successive volumes of water filtered by this filter cartridge (15), and display means arranged to emit a light signal corresponding, on the one hand, to the state of charge of the feeding means (32) of said control device and, on the other hand, in the qualitative state of the filter cartridge (15) as a function of the total volume of water actually filtered by said filter cartridge (15).
9. Dispositif selon la revendication 8, caractérisée en ce que les moyens de mesure pour déterminer le volume de l'eau filtrée par ladite cartouche filtrante (15) comprennent un élément de mesure agencé pour compter le temps d'écoulement de l'eau à filtrer vers la cartouche filtrante, cet écoulement étant effectué à débit sensiblement constant. 9. Device according to claim 8, characterized in that the measuring means for determining the volume of the water filtered by said filter cartridge (15) comprises a measuring element arranged to count the flow time of water to filtering towards the filter cartridge, this flow being carried out at a substantially constant flow rate.
10. Dispositif selon la revendication 8, caractérisée en ce qu'il comprend en outre des moyens (30) agencés pour enclencher automatiquement ledit circuit électronique de gestion (33) à chaque passage d'eau à filtrer en direction de la cartouche filtrante (15).10. Device according to claim 8, characterized in that it further comprises means (30) arranged to automatically engage said electronic management circuit (33) to each passage of water to be filtered in the direction of the filter cartridge (15). ).
11. Dispositif selon la revendication 10, caractérisée en ce que ledit circuit électronique de gestion (33) comporte un capteur d'enclenchement automatique sensible au passage de l'eau à filtrer en direction de la cartouche filtrante (15).11. Device according to claim 10, characterized in that said electronic management circuit (33) comprises an automatic engagement sensor responsive to the passage of the water to be filtered in the direction of the filter cartridge (15).
12. Dispositif selon la revendication 11 , caractérisée en ce que ledit capteur d'enclenchement automatique comporte une languette souple comportant deux surfaces électriquement conductrices (31a, 31b) déposées sur un support isolant.12. Device according to claim 11, characterized in that said automatic engagement sensor comprises a flexible tongue having two electrically conductive surfaces (31a, 31b) deposited on an insulating support.
13. Dispositif selon la revendication 8, caractérisée en ce que les moyens d'affichage agencés pour émettre un signal lumineux comportent au moins un élément (34) émettant un signal lumineux en correspondance avec l'état de charge des moyens d'alimentation électrique (32) dudit dispositif.13. Device according to claim 8, characterized in that the display means arranged to emit a light signal comprise at least one element (34) emitting a light signal corresponding to the state of charge of the power supply means ( 32) of said device.
14. Dispositif selon la revendication 8, caractérisée en ce que les moyens d'affichage agencés pour émettre un signal lumineux comportent au moins un élément (34) émettant un signal lumineux selon un code couleur en correspondance avec l'état qualitatif de la cartouche filtrante (15).14. Device according to claim 8, characterized in that the display means arranged to emit a light signal comprise at least one element (34) emitting a light signal according to a color code in correspondence with the qualitative state of the filter cartridge (15).
15. Récipient (10) équipé d'un dispositif de contrôle (14) de la qualité d'une cartouche filtrante (15) selon l'une quelconque des revendications précédentes. Container (10) equipped with a quality control device (14) for a filter cartridge (15) according to any of the preceding claims.
PCT/CH2007/000383 2006-08-08 2007-08-06 Method and device or controlling the quality of a filtration cartridge and vessel with such a device WO2008017182A1 (en)

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CH1265/06 2006-08-08

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Publication number Priority date Publication date Assignee Title
ITPD20090171A1 (en) * 2009-06-10 2010-12-11 Laica Spa FILTERING SYSTEM
WO2016177697A1 (en) * 2015-05-06 2016-11-10 Wmf Group Gmbh Electrically operated beverage maker (preferably coffee machine) having dynamic maintenance plan generation

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Publication number Priority date Publication date Assignee Title
US20050229699A1 (en) * 2004-04-19 2005-10-20 Chai John Y Apparatus and methods for monitoring water consumption and filter usage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050229699A1 (en) * 2004-04-19 2005-10-20 Chai John Y Apparatus and methods for monitoring water consumption and filter usage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20090171A1 (en) * 2009-06-10 2010-12-11 Laica Spa FILTERING SYSTEM
WO2010142473A1 (en) * 2009-06-10 2010-12-16 Laica S.P.A. Filtering system
WO2016177697A1 (en) * 2015-05-06 2016-11-10 Wmf Group Gmbh Electrically operated beverage maker (preferably coffee machine) having dynamic maintenance plan generation
US11006778B2 (en) 2015-05-06 2021-05-18 Wmf Group Gmbh Electrically operated beverage maker (preferably coffee machine) having dynamic maintenance plan generation

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