WO2016177847A1 - Machine à café pour laquelle le transfert de café vers un réceptacle extérieur est amélioré et procédé de commande associé - Google Patents

Machine à café pour laquelle le transfert de café vers un réceptacle extérieur est amélioré et procédé de commande associé Download PDF

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Publication number
WO2016177847A1
WO2016177847A1 PCT/EP2016/060117 EP2016060117W WO2016177847A1 WO 2016177847 A1 WO2016177847 A1 WO 2016177847A1 EP 2016060117 W EP2016060117 W EP 2016060117W WO 2016177847 A1 WO2016177847 A1 WO 2016177847A1
Authority
WO
WIPO (PCT)
Prior art keywords
transfer speed
valve
brewing chamber
coffee
coffee machine
Prior art date
Application number
PCT/EP2016/060117
Other languages
English (en)
Inventor
Musa OZDEMIR
Ahmet SOZEN
Cagatay Buyuktopcu
Ozkan AKGUL
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP16720443.7A priority Critical patent/EP3291711A1/fr
Priority to TR2017/16968T priority patent/TR201716968T1/tr
Publication of WO2016177847A1 publication Critical patent/WO2016177847A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/18—Apparatus in which ground coffee or tea-leaves are immersed in the hot liquid in the beverage container
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A47J31/525—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being based on monitoring of specific process parameters

Definitions

  • the present invention relates to a coffee machine comprising a level sensor disposed at the upper part of the brewing chamber wherein coffee is brewed and providing the detection of whether or not the coffee is ready and a valve that provides the transfer of the coffee in the brewing chamber to an exterior receptacle.
  • coffee and foam residues may accumulate in the brewing chamber after the brewing process.
  • the settled down coffee grounds that are formed by finely ground, small sized granules especially like Turkish coffee can accumulate on the valve providing the transfer of coffee to the exterior receptacle and adversely affect the transfer of coffee to the exterior receptacle.
  • the valve can be detected as open even though not opened. In this situation, the coffee in the brewing chamber cannot be emptied and can cause overflowing. In such a situation, whether or not the valve is clogged or opened should be determined effectively.
  • a coffee machine that comprises a foam level sensor providing the measurement of the level of the coffee.
  • the aim of the present invention is the realization of a coffee machine wherein the open position of the valve providing the transfer of the coffee in the brewing chamber into an exterior receptacle is determined effectively.
  • the coffee machine realized in order to attain the aim of the present invention and explicated in the claims, comprises a level sensor that provides the measurement of the level of the water-coffee mixture in the brewing chamber; a valve that is disposed on the brewing chamber and that provides the transfer of the coffee into an exterior receptacle, and a control unit that calculates the transfer speed while the brewed coffee in the brewing chamber is transferred to an exterior receptacle by performing measurement by means of the level sensor and comparing the calculated transfer speed with a limit transfer speed recorded in its memory and that decides that the brewing chamber is dirty if the calculated transfer speed is smaller than the limit transfer speed.
  • whether or not the valve is clogged is detected by performing measurements during the transfer of the liquid in the brewing chamber by the presently used level sensor and calculating the transfer speed.
  • control unit enables the user to be warned that the valve is clogged if the calculated transfer speed is smaller than the limit transfer speed.
  • the valve is a poppet type valve that enables the transfer to be made precisely and provides a quality seal-proofing by creating vacuum effect while closing.
  • the coffee machine comprises a safety switch that is disposed at the lower part of the brewing chamber, that is used in case of emergency and that enables the coffee in the brewing chamber to be poured into a discharge container.
  • the control unit warns the user to empty the brewing chamber by using the safety switch upon deciding that the valve is clogged.
  • control unit enables the safety switch to be opened when the valve is completely clogged, in other words when the transfer speed is almost zero.
  • the safety switch has the feature of opening/closing under the control of the control unit and is automatically opened when the valve is clogged.
  • the coffee machine is a Vietnamese coffee machine.
  • the control method of the present invention comprises the steps of opening the valve when the brewing process is completed, calculating the transfer speed during transfer by performing measurements by means of the level sensor, comparing the calculated transfer speed with the limit transfer speed value, continuing the transfer process if the calculated transfer speed is greater than the limit transfer speed value, and closing the valve when transfer is completed, warning the user and/or opening the safety switch if the calculated transfer speed is smaller than the limit transfer speed value.
  • the user is warned to enable the brewing chamber to be emptied when the valve does not open due to electronic or mechanical malfunctions or if the accumulated coffee residues clog the valve by calculating and monitoring the transfer speed by using the level sensor.
  • Figure 1 – is the sideways schematic view of a coffee machine.
  • Figure 2 – is the flow chart of the control method of the present invention.
  • the coffee machine (1) comprises a body (2), a brewing chamber (3) disposed inside the body (2), a heater (4) providing the heating of the brewing chamber (3), a level sensor (5) providing the measurement of the water-coffee mixture in the brewing chamber (3) during brewing and a valve (6) providing the transfer of the liquid inside the brewing chamber (3) to an exterior receptacle (H).
  • coffee is delivered to the brewing chamber (3) automatically or by the user filling manually.
  • water is delivered to the brewing chamber (3) from the water tank (not shown in the figures) by a pump (not shown in the figures) and the water conduit (not shown in the figures) and the heater (4) provides the brewing of the coffee by heating the brewing chamber (3).
  • the level sensor (5) helps in deciding whether or not the brewing process is completed by measuring the level of the water–coffee mixture in the brewing chamber (3).
  • the prepared coffee in the brewing chamber (3) is transferred into an exterior receptacle (H) by means of the valve (6).
  • the level sensor (5) is preferably an infrared sensor and measures the height of the water–coffee mixture from the base of the brewing chamber (3). When the coffee is brewed and ready, the level rises with the foam formed thereon and the level sensor (5) provides the decision of whether or not the brewing process is completed to be made.
  • the coffee machine (1) of the present invention comprises a control unit (7) that provides the realization of the measurement by the level sensor (5), the calculation of the transfer speed (V) with the data received from the level sensor (5), the comparison of the calculated transfer speed (V) with a limit transfer speed value (Vlim) predetermined by the producer and the determination of clogginess of the valve (6) as a result of the comparison after the brewing process is completed and during transfer to the exterior receptacle (H).
  • a control unit (7) that provides the realization of the measurement by the level sensor (5), the calculation of the transfer speed (V) with the data received from the level sensor (5), the comparison of the calculated transfer speed (V) with a limit transfer speed value (Vlim) predetermined by the producer and the determination of clogginess of the valve (6) as a result of the comparison after the brewing process is completed and during transfer to the exterior receptacle (H).
  • the accumulated residues cause the brewed coffee in the brewing chamber (3) to be transferred to the exterior receptacle (H) more slowly.
  • the value obtained from the measurement performed by the level sensor (5) is divided by the transfer time, in other words the time during which the valve (6) is open, by the control unit (7) and the transfer speed (V) is calculated.
  • the producer determines a limit transfer speed value (Vlim) within certain tolerances as a result of conducted experiments and this limit transfer speed value (Vlim) is saved in the memory of the control unit (7).
  • the control unit (7) calculates the transfer speed (V) by enabling the level sensor (5) to make measurements during the transfer and compares the calculated transfer speed (V) with the limit transfer speed value (Vlim). If the calculated transfer speed (V) is smaller than the limit transfer speed value (Vlim), the control unit (7) decides that the valve (6) is clogged. If the calculated transfer speed (V) is greater than the limit transfer speed value (Vlim), the control unit (7) decides that the valve (6) is clean and operating without problems.
  • the control unit (7) upon deciding that the valve (6) is clogged, technically the calculated transfer speed (V) is smaller than the limit transfer speed value (Vlim) predetermined by the producer, the control unit (7) enables the user to be warned. In this embodiment, the user is warned that the valve (6) is dirty. Thus, the automatic cleaning mechanism has to be operated, if there is one, or the user is informed that the valve (6) has to be cleaned manually.
  • the valve (6) is a poppet type valve, also known as mushroom valve, that provides strong leak-proofing and enables the transfer to be controlled effectively and precisely.
  • the coffee machine (1) comprises a safety switch (8) that is disposed on the base of the brewing chamber (3), that enables the liquid inside the brewing chamber (3) to be discharged, in other words the brewing chamber (3) to be completely emptied without using the valve (6).
  • the safety switch (8) is opened, the liquid inside the brewing chamber (3) is discharged through the safety switch (8).
  • the safety switch (8) is a plug and when the valve (6) is clogged the user can detach the brewing chamber (3), open the plug and empty the brewing chamber (3).
  • the control unit (7) enables the safety switch (8) to be opened if the calculated transfer speed (V) is smaller than a safety speed value (Ve) predetermined by the producer.
  • the safety speed (Ve) value is a value almost around zero, and the control unit (7) is activated when the valve (6) is almost completely clogged and the transfer speed (V) is almost zero.
  • the safety switch (8) can be opened/closed under the control of the control unit (7) or can be a plug that can be controlled electrically.
  • valve (6) While the valve (6) is open, if the coffee or any other liquid in the brewing chamber (3) cannot be emptied completely, in other words, if the transfer operation stops, the control unit (7) enables the safety switch (8) to be opened and the brewing chamber (3) to be emptied.
  • the discharged liquid is transferred to the exterior receptacle (H) or the liquid waste collection region of the coffee machine (1).
  • the coffee machine (1) is suitable to prepare Vietnamese coffee.
  • the control method of the present invention used in the above-disclosed coffee machine (1) and executed by the control unit (7) comprises the following steps for determining the clogginess of the valve (6), - opening the valve (6) after the brewing process is completed (101), - calculating the transfer speed (V) by providing the measurement by means of the level sensor (5) (102), - comparing the calculated transfer speed (V) with the limit transfer speed value (Vlim) (103), - deciding by the control unit (7) that the valve (6) operates without problems if the calculated transfer speed (V) is greater than the limit transfer speed value (Vlim) and closing the valve (6) when the brewing chamber (3) is completely empty (104), - deciding that the valve (6) is clogged if the calculated transfer speed (V) is smaller than the limit transfer speed value (Vlim) and warning the user and/or opening the safety switch (8) (105).
  • the present level sensor (5) that is used for detecting the brewing status of the coffee, whether or not there is a problem with the valve (6) can be determined by means of taking measurements with the level sensor (5) during the transfer of coffee.

Abstract

La présente invention concerne une machine à café (1) qui comprend un corps (2), une chambre de percolation (3) disposée à l'intérieur du corps (2), un appareil de chauffage (4) fournissant le chauffage de la chambre de percolation (3), un capteur de niveau (5) fournissant la mesure du mélange eau-café dans la chambre de percolation (3) et une soupape (6) fournissant le transfert du liquide à l'intérieur de la chambre de percolation (3) vers un réceptacle extérieur (H).
PCT/EP2016/060117 2015-05-07 2016-05-05 Machine à café pour laquelle le transfert de café vers un réceptacle extérieur est amélioré et procédé de commande associé WO2016177847A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16720443.7A EP3291711A1 (fr) 2015-05-07 2016-05-05 Machine à café pour laquelle le transfert de café vers un réceptacle extérieur est amélioré et procédé de commande associé
TR2017/16968T TR201716968T1 (tr) 2015-05-07 2016-05-05 Hari̇ci̇ bi̇r hazneye kahve aktarimi i̇yi̇leşti̇ri̇len bi̇r kahve maki̇nesi̇ ve kontrol yöntemi̇

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2015/05530 2015-05-07
TR201505530 2015-05-07

Publications (1)

Publication Number Publication Date
WO2016177847A1 true WO2016177847A1 (fr) 2016-11-10

Family

ID=55910978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/060117 WO2016177847A1 (fr) 2015-05-07 2016-05-05 Machine à café pour laquelle le transfert de café vers un réceptacle extérieur est amélioré et procédé de commande associé

Country Status (3)

Country Link
EP (1) EP3291711A1 (fr)
TR (1) TR201716968T1 (fr)
WO (1) WO2016177847A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110507191A (zh) * 2019-10-10 2019-11-29 广州康宏科技股份有限公司 一种冲泡腔及具有该冲泡腔的咖啡机
CN110536626A (zh) * 2017-04-18 2019-12-03 诺威德尔塔咖啡贸易工业有限公司 具有最佳饮料排放装置的饮料分配系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007051200A2 (fr) * 2005-10-28 2007-05-03 Bunn-O-Matic Corporation Systeme et procede de brassage tolerant les depots de calcaire
WO2007071567A1 (fr) 2005-12-19 2007-06-28 Arcelik Anonim Sirketi Cafetière et procédé de commande
CN203074335U (zh) 2013-01-10 2013-07-24 浙江瑞德电子科技有限公司 一种使用红外线检测水位的咖啡机电子控制装置
US8851740B1 (en) * 2010-10-12 2014-10-07 K-Tec, Inc. Liquid level detection and autonomous calibration for self-serve blending apparatus and methods
CN104095537A (zh) 2013-04-03 2014-10-15 张继荣 红外线温度可调饮水机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007051200A2 (fr) * 2005-10-28 2007-05-03 Bunn-O-Matic Corporation Systeme et procede de brassage tolerant les depots de calcaire
WO2007071567A1 (fr) 2005-12-19 2007-06-28 Arcelik Anonim Sirketi Cafetière et procédé de commande
US8851740B1 (en) * 2010-10-12 2014-10-07 K-Tec, Inc. Liquid level detection and autonomous calibration for self-serve blending apparatus and methods
CN203074335U (zh) 2013-01-10 2013-07-24 浙江瑞德电子科技有限公司 一种使用红外线检测水位的咖啡机电子控制装置
CN104095537A (zh) 2013-04-03 2014-10-15 张继荣 红外线温度可调饮水机

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110536626A (zh) * 2017-04-18 2019-12-03 诺威德尔塔咖啡贸易工业有限公司 具有最佳饮料排放装置的饮料分配系统
CN110507191A (zh) * 2019-10-10 2019-11-29 广州康宏科技股份有限公司 一种冲泡腔及具有该冲泡腔的咖啡机
WO2021068308A1 (fr) * 2019-10-10 2021-04-15 广州康宏科技股份有限公司 Cavité d'infusion et machine à café présentant la cavité d'infusion
CN110507191B (zh) * 2019-10-10 2024-04-09 广州康宏科技股份有限公司 一种冲泡腔及具有该冲泡腔的咖啡机

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Publication number Publication date
EP3291711A1 (fr) 2018-03-14
TR201716968T1 (tr) 2018-06-21

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