WO2012130330A1 - Dispositif de filtration d'eau - Google Patents

Dispositif de filtration d'eau Download PDF

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Publication number
WO2012130330A1
WO2012130330A1 PCT/EP2011/055131 EP2011055131W WO2012130330A1 WO 2012130330 A1 WO2012130330 A1 WO 2012130330A1 EP 2011055131 W EP2011055131 W EP 2011055131W WO 2012130330 A1 WO2012130330 A1 WO 2012130330A1
Authority
WO
WIPO (PCT)
Prior art keywords
display device
hopper
container
water filtering
filtering device
Prior art date
Application number
PCT/EP2011/055131
Other languages
English (en)
Inventor
Simon FAREMO
Original Assignee
Aktiebolaget Electrolux
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 Aktiebolaget Electrolux filed Critical Aktiebolaget Electrolux
Priority to PCT/EP2011/055131 priority Critical patent/WO2012130330A1/fr
Publication of WO2012130330A1 publication Critical patent/WO2012130330A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug

Definitions

  • the present invention relates to a water filtering device, such as a water filter jug 5 comprising a filter unit for filtration and purification of water. More particularly, the
  • invention relates to a water filtering device provided with a display device arranged to notify the user of the device when the filter unit has served its time.
  • the filter unit In water filtering devices such as water jugs comprising a filter unit, the filter unit normally has a certain life time. If the filter unit is used for a too long time the filtering effect cannot be guaranteed. Therefore, the filter unit should be replaced to ensure quality of the filtered water either after that a certain amount of water has been filtered or after a certain time in use. To facilitate for the user it is desirable to provide an indication at the time the filter 5 unit needs to be replaced. The actual position of such an indication means depend upon several factors. One factor is that it should be easily viewed and operated by a user. Another factor is that it should be positioned such that the overall design and construction of the water filtering device is not negatively affected, for example that the construction is cost effective and that the indicator means would not disturb the appearance and/or use0 of the water filtering device.
  • US6,224,751 B1 discloses a water purifying device with a collecting jug for purified water, in which a funnel with a filter cartridge filled with purifying medium is fitted.
  • the jug can be closed at the top with a lid.
  • An indicator is provided in the lid for indicating the exhaustion5 of the purifying medium.
  • the indicator is arranged in a housing which is secured in an aperture in the top surface of the lid.
  • the lid is further provided with means for removing the lid from the jug as the lid is preferably removed before filling the jug with water to be purified.
  • the relatively sensitive indicator is arranged in the lid. If the lid is handled carelessly, is dropped or for some reason falls off the purifying device during use, the indicator may be damaged or broken.
  • An object with the present invention is to provide a water filtering device that overcomes at least one drawback of the prior art.
  • a further object with the present invention is to provide a water filter device comprising a simple but yet robust and reliable display device for indicating when the filter unit has served its time.
  • Another object with the present invention is to provide a detachably display device for a water filtering device that has an improved attachment and positioning as well as improved visibility and operation for the user.
  • a water filtering device comprising a 5 container having a closed bottom, an outer side wall and an open top, the container is adapted to hold filtered water, a hopper adapted to be mounted in the container and to receive unfiltered water, a filter unit adapted to be mounted in the hopper for filtering water introduced into the hopper, the filter unit provides an outlet from the hopper through which filtered water reaches the container, and a display device for indicating when the filter unit0 has served its time, wherein the display device is arranged on the hopper.
  • the display device By arranging the display device on the hopper of the water filtering device the display device has a more protected position compared to previously known positions of the display device.
  • the display device is arranged in a space on the hopper, which space is arranged adjacent an upper edge of the hopper. Further, the display0 device protrudes through a cut out in the outer side wall of the container on a level with the outer side wall of the container when the hopper is arranged in the container.
  • this position of the display device also makes it easy to handle for a user.
  • At least one groove is provided in the space on the hopper. Further, the display device comprises at least one rim matching the groove in the space such that the display device is guided into its position on the hopper.
  • the display device is detachably arranged on the hopper with a snap fit connection.
  • the positioning of the display device is easy to carry out.
  • a further advantage is o that the display device is kept readily in place as any movement in an upward or
  • the snap fit connection which is provided by a knob on the display device fitting into an indentation in the space on the hopper, contributes to the robust installation of the display device on the hopper. It is also an advantage that the display device is detachably 5 arranged as it then may be easily removed from its position. For example, this is useful when the water filtering device is to be thoroughly rinsed or cleaned in a dishwasher.
  • the display device further comprises an indicating element for illustrating a status of the filter unit.
  • the indicating element comprises at least one light emitting diode arranged to illustrate the status of the filter unit.
  • the indicating element comprises a liquid crystal5 display arranged to illustrate the status of the filter unit.
  • the device comprises a lid arranged to cover the opening of the container.
  • the container has an interrupted surface in the outer side wall forming two projecting edges providing a grip portion for a user.
  • the0 display device is arranged above the grip portion at the open top of the container below the lid.
  • Fig. 1 a is a perspective view of a water filtering device according to an embodiment
  • Fig.1 b is a back view of the water filtering device of Fig. 1 a
  • Fig. 2 is a cross-sectional view along A-A of the water filtering device of Fig. 1 b,
  • Fig. 3 is detailed view of a portion of the water filtering device of Fig. 2 carrying a display device
  • Fig. 4a shows a top view of a display device according to an embodiment
  • Fig. 4b shows a bottom view of the display device of Fig. 4a
  • Fig. 4c shows a cross-section along F-F of the display device of Fig. 4b.
  • a water filtering device 1 according to an embodiment is illustrated.
  • the device comprises a container 3 for holding filtered water.
  • the container has a closed bottom, outer side walls and an open top forming an opening into the container.
  • a lid 5 5 covers and protects the opening of the container.
  • the lid has an opening 7 through which water to be filtrated may be poured into the container 3.
  • the lid 5 further comprises a spout opening 1 1 through which the filtered watered is poured out from the container.
  • the container is provided with a grip portion 13 for enabling a user to be able to lift the device.
  • the grip portion is formed in the outer wall of the container 3 by interrupting the outer o surface such that two edges are formed.
  • the water filtering device 1 further comprises a display device 19 for indicating when the filter unit has served its time, i.e. when the filter unit is depleted or used up.
  • the display device is arranged above the grip portion 13 through the outer wall of the container adjacent the opening of the container and directly under the lid.
  • Fig. 2 the inside of the water filtering device is illustrated as a cross-sectional view along A-A in Fig. 1 b.
  • the water poured into the opening 7 in the lid is received in a hopper 15.
  • a rocker 9 is arranged such that a closable opening is provided.
  • the rocker is resiliency connected to the lid as may be seen in Fig. 2.
  • The0 rocker pivots down into the hopper when water is pored into the opening. Due to the
  • a filter unit 17 is detachably arranged in the hopper.
  • the display device 19 is arranged on the hopper 15. The display device then protrudes through the outer wall of the container when the hopper is installed in the container.
  • The5 display device is further arranged on a level with the outer side wall of the container.
  • the display device 19 is received in a space 21 on the hopper 15.
  • the space 21 is arranged to receive the display device with a snap fit arrangement 33, 35.
  • the display device is detachably arranged in the space.
  • the hopper 15 may be installed in the container 3.
  • a cut out is provided in the outer wall of the container for receiving the display device as the hopper is installed in the open top of the container.
  • the outer side wall in the cut out may also contribute to keep the display device well in place in the space 21 .
  • the opening of the container (and the hopper) is then closed with the lid 5.
  • the space 21 is generally rectangular or quadratic in shape to match the form of the display device 19 to be received.
  • the display device has the shape of a rectangular or quadratic box. It has a top, a bottom and four sides.
  • the space is provided with two grooves 29 to guide the display device into the space.
  • the grooves 29 further helps to 5 keep the display device in the space.
  • the grooves 29 are arranged parallel to each other on each side of the space.
  • a rim 31 is arranged to be steered into the grooves.
  • the display device is slid into the space 21 on the 1 o hopper.
  • a snap fit locking 33, 35 is provided between the display device 19 and the
  • the display device is detachably arranged in the space 21 and may thus be taken out again if necessary.
  • Figures 4a-c illustrate details of the display device 19.
  • Fig. 4a shows a top view of the display device 19.
  • the display device further comprises an indicating element 37.
  • the indicating element is visible through holes in the casing of the display device 19.
  • the indicating element illustrates the status of the filter unit, for example by an indication of the time remaining until the filter unit needs to be changed.
  • the indicating element may be a number of light emitting
  • the display device further comprises an electrical circuit 43 comprising a printed circuit board (PCB) and a micro switch for controlling the indicating element 37.
  • a battery provides electrical energy to the circuit in the display device.
  • the indicating element 37 also may
  • LCD 25 be represented by a liquid crystal display (LCD).
  • the push button 39 On the top side of the display device is also provided a push button 39.
  • the push button mainly has two functions. By pressing the button the status of the filter will be illustrated by means of one or more illuminated spots or areas provided by the indicating element
  • the status may for example be the remaining or lapsed time of filter unit life time.
  • Pressing the button 39 and keeping it pressed down for a short while will show the status of the filter unit. In this respect a short while is approximately 0,5-2 seconds or less. By pressing down the button 39 and keeping it pressed down for a somewhat longer time, the display device will be reset. In this respect a long while is approximately 5 seconds or
  • the push button may have a text written on it (not shown) for indicating its use.
  • the text "STATUS" may be provided on the push button 39.
  • the display device should be reset to start the time calculation again.
  • a filter device used in the described embodiment has a life time of around 1 month, i.e. approximately 30 days.
  • Fig. 4b shows a bottom view of the display device.
  • the knob 35 is visible.
  • the knob fits into the indentation 33 to form a snap fit connection 33, 35 between the display device 19 and the hopper.
  • the display device may be opened for example to exchange the battery (not shown) therein.
  • the bottom of the display device is removable by o removing the fastening means 41 keeping it together.
  • the fastening means 41 may be for example screws.
  • Fig. 4c schematically shows the interior of the display device.
  • the display device comprises the indicating element 37, which is for example one or more light emitting 5 diodes or a liquid crystal display, and the circuitry 43 comprising for example a micro switch, a printed circuit board and a battery.
  • the display device shows with the indicating element the time left until the filter unit should be exchanged.
  • the status of the filter i.e. the0 remaining time of the filter unit life is indicated or illustrated by for example a number of illuminated or flashing spots (or lights being put out).
  • the illuminated spots are provided by the indicating element, being for example a number of light emitting diodes or a liquid crystal display.
  • the number5 of illuminated spots may be varied and/or the colours of them may be varied.
  • different colour codes or lighting patterns may be used to indicate that the life time of the filter unit has come to an end or is close to an end.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

La présente invention porte sur un dispositif de filtration d'eau, lequel dispositif comprend : - un récipient (3) ayant un fond fermé, une paroi latérale externe et un sommet ouvert, le récipient étant apte à contenir de l'eau filtrée, - une trémie (15) apte à être montée dans le récipient et à recevoir de l'eau non filtrée, - une unité de filtre (17) apte à être montée dans la trémie pour filtrer de l'eau introduite dans la trémie, l'unité de filtre constituant une sortie à partir de la trémie, à travers laquelle de l'eau filtrée atteint le récipient, et - un dispositif d'affichage (19) pour indiquer le moment où l'unité de filtre a atteint sa durée de vie, le dispositif d'affichage (19) étant disposé sur la trémie (15).
PCT/EP2011/055131 2011-04-01 2011-04-01 Dispositif de filtration d'eau WO2012130330A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/055131 WO2012130330A1 (fr) 2011-04-01 2011-04-01 Dispositif de filtration d'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/055131 WO2012130330A1 (fr) 2011-04-01 2011-04-01 Dispositif de filtration d'eau

Publications (1)

Publication Number Publication Date
WO2012130330A1 true WO2012130330A1 (fr) 2012-10-04

Family

ID=44625610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/055131 WO2012130330A1 (fr) 2011-04-01 2011-04-01 Dispositif de filtration d'eau

Country Status (1)

Country Link
WO (1) WO2012130330A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0891952A1 (fr) * 1997-07-19 1999-01-20 Brita Wasser-Filter-Systeme GmbH Dispositif d'indication de la déplétion d'un agent nettoyant
US6224751B1 (en) 1998-04-29 2001-05-01 Brita Gmbh Water purifying device with means for indicating exhaustion of the purifying medium
DE10143884A1 (de) * 2001-09-07 2003-03-27 Aqua Select Gmbh Vorrichtung zur Reinigung von Wasser
EP1589325A2 (fr) * 2004-04-19 2005-10-26 Fook Tin Technologies Ltd. Appareil et procédés pour le contrôle de la consommation d'eau et de l'usage d'un filtre
WO2006043283A1 (fr) * 2004-10-21 2006-04-27 Bathula Gangadhar Purificateur d’eau potable intégré
WO2009090678A1 (fr) * 2008-01-15 2009-07-23 Laica S.P.A. Procédé de détermination de l'épuisement d'une cartouche filtrante dans un système de filtration à cartouche remplaçable et dispositif fonctionnant conformément à ce procédé
GB2469623A (en) * 2009-04-20 2010-10-27 Naseem Bari Submerged filter usage indicator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0891952A1 (fr) * 1997-07-19 1999-01-20 Brita Wasser-Filter-Systeme GmbH Dispositif d'indication de la déplétion d'un agent nettoyant
US6224751B1 (en) 1998-04-29 2001-05-01 Brita Gmbh Water purifying device with means for indicating exhaustion of the purifying medium
DE10143884A1 (de) * 2001-09-07 2003-03-27 Aqua Select Gmbh Vorrichtung zur Reinigung von Wasser
EP1589325A2 (fr) * 2004-04-19 2005-10-26 Fook Tin Technologies Ltd. Appareil et procédés pour le contrôle de la consommation d'eau et de l'usage d'un filtre
WO2006043283A1 (fr) * 2004-10-21 2006-04-27 Bathula Gangadhar Purificateur d’eau potable intégré
WO2009090678A1 (fr) * 2008-01-15 2009-07-23 Laica S.P.A. Procédé de détermination de l'épuisement d'une cartouche filtrante dans un système de filtration à cartouche remplaçable et dispositif fonctionnant conformément à ce procédé
GB2469623A (en) * 2009-04-20 2010-10-27 Naseem Bari Submerged filter usage indicator

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