WO2019088956A2 - Machine à café - Google Patents

Machine à café Download PDF

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Publication number
WO2019088956A2
WO2019088956A2 PCT/TR2018/050561 TR2018050561W WO2019088956A2 WO 2019088956 A2 WO2019088956 A2 WO 2019088956A2 TR 2018050561 W TR2018050561 W TR 2018050561W WO 2019088956 A2 WO2019088956 A2 WO 2019088956A2
Authority
WO
WIPO (PCT)
Prior art keywords
cooking
cooking process
pressure value
control unit
sensor
Prior art date
Application number
PCT/TR2018/050561
Other languages
English (en)
Other versions
WO2019088956A3 (fr
Inventor
Murat Kantas
Ismet Arsan
Nihat Kandemir
Berkhan KARSLI
Hakan ALTUNTAS
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
Publication of WO2019088956A2 publication Critical patent/WO2019088956A2/fr
Publication of WO2019088956A3 publication Critical patent/WO2019088956A3/fr

Links

Classifications

    • 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
    • A47J31/5251—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 of pressure
    • 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

Definitions

  • the present invention relates to a coffee machine capable cooking Vietnamese coffee.
  • Coffee machines capable of automatically cooking Turkish coffee are known in the art.
  • various sensors such as heat, infrared or conductivity sensors are used in terminating the cooking process.
  • infrared sensors In applications where infrared sensors are used, it is possible to cook coffee with identical taste and consistency every time, but the sensor surface becomes dirty after several cooking operations, requiring manual cleaning by the user. The infrared sensor may otherwise make incorrect determinations.
  • heat or conductivity sensors are less affected from dirt, it is not possible to cook with identical taste and consistency every time since such sensors have low precision.
  • the consumers demand a coffee machine in which cooking is sensed by a sensor capable of making high-precision measurements and not requiring regular cleaning.
  • EP1763311 discloses a Turkish coffee machine in which whether coffee is cooked is sensed by using an infrared sensor.
  • State of the art European patent application no. EP2316312 discloses a coffee machine in which whether Turkish coffee is cooked is sensed by using a conductivity sensor.
  • the aim of the present invention is to realize a coffee machine not requiring regular maintenance and capable of cooking Turkish coffee with identical taste and consistency every time.
  • the coffee machine realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims comprises a sensor sensing pressure variations, provided on the ceiling of a cooking compartment wherein a cooking chamber is placed, the cooking process being performed in the cooking chamber, and a control unit determining whether coffee is cooked according to data received from the sensor.
  • the control unit terminates the cooking process by determining a cooked state if the pressure value sensed by the sensor is within a limit pressure value range predetermined by the producer.
  • the control unit waits for a predetermined time after the cooking process begins, in order to avoid making an incorrect cooked state determination due to measurement errors, when the pressure values instantaneously increase to the limit pressure value range, and then reads sensor data and determines a cooked state if the pressure value is within the limit pressure value range.
  • control unit determines a cooked state only when the pressure value stays for a predetermined duration within the limit pressure value range, in order to avoid making an incorrect cooked state determination due to measurement errors when the pressure values instantaneously increase to the limit pressure value range.
  • the control unit in order to prevent likely problems, terminates the cooking process if a cooked state is not determined within a predetermined maximum duration. In this embodiment, in order to overcook coffee due to errors likely to occur in measurements, the control unit terminates the cooking process independent of sensor measurement if a cooked state is not determined by the sensor in a maximum cooking duration.
  • the senor comprises a diaphragm and an inductive member provided on the diaphragm, enabling a metal to be inductively sensed.
  • the sensor can thus be produced with a low cost, and can be used for a long time without breaking or requiring maintenance thanks to its simple structure.
  • Figure 1 is a perspective view of the coffee machine.
  • Figure 2 is a schematic frontal view of the coffee machine in an embodiment of the invention.
  • FIG. 3 is an exploded view of the sensor of an embodiment of the invention.
  • the elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  • the coffee machine (1) comprises a body (2), a cooking compartment (3) provided in the body (2), a cooking chamber (4) in which the cooking process is performed, placed in the cooking compartment (3), sealingly touching the ceiling of the cooking compartment (3) throughout the cooking process, a heater (5) provided on the base of the cooking compartment (3), and a control unit (6) initiating the cooking process by turning the heater (5) on, terminating the cooking process by turning the heater (5) off, and enabling controlling of the cooking process.
  • the user fills Turkish coffee into the cooking chamber (4), places the cooking chamber (4) to the cooking compartment (3) and starts the cooking process by pressing the start button.
  • the control unit (6) initiates the cooking process by turning the heater (5) on.
  • the cooking chamber (4) contacts the ceiling of the cooking compartment (3) throughout the cooking process, sealingly touching the ceiling. Once the cooking process is completed, the control unit (6) turns the heater (5) off, terminating the cooking process.
  • the coffee machine (1) of the invention comprises a sensor (7) provided on the ceiling of the cooking compartment (3), sensing pressure variations in the cooking chamber (4) during the cooking process, and a control unit (6) terminating the cooking process by determining a cooked state when the pressure value in the cooking chamber (4) is within a predetermined limit pressure value range.
  • a control unit (6) terminating the cooking process by determining a cooked state when the pressure value in the cooking chamber (4) is within a predetermined limit pressure value range.
  • an pressure value increase is observed in the cooking chamber (4).
  • the producer has discovered that the pressure in the cooking chamber is within a certain range at the moment when Turkish coffee is in cooked state with a foamy traditional consistency.
  • the pressure level begins increasing upon starting of cooking, and is in a certain pressure level range once Turkish coffee of traditional consistency is achieved.
  • the pressure value is always within a certain limit pressure value range at the moment when Turkish coffee of traditional consistency reaches the cooked state.
  • the producer saves the limit pressure value range which is independent of the cooked coffee amount, to the memory of the control unit (6).
  • the control unit (6) of the invention monitors the pressure value sensed by the sensor (7), and determines a cooked state if the pressure value is within a limit pressure value range predetermined by the producer.
  • the control unit (6) terminates the cooking process by determining a cooked state if after a predetermined duration t beginning from initiation of the cooking process, the pressure value sensed by the sensor (7) is in the limit pressure value range.
  • the producer saves to the memory of the control unit (6) the duration t determined according to the amount of Turkish coffee to be cooked, and required for heating the water in the cooking chamber (4) up to a certain temperature.
  • the control unit (6) waits at least for the duration t following beginning of the cooking process, and then determines a cooked state by reading sensor (7) data. With this embodiment, making erroneous cooked state determinations are avoided in instantaneous pressure variations likely to occur due to any reason whatsoever before cooking of the coffee is completed.
  • the control unit (6) determines a cooked state if the pressure value sensed by the sensor (7) is within the limit pressure value range throughout a predetermined duration tl .
  • actual cooked state of the coffee is clearly detected. It is possible for the pressure values measured by the sensor (7) to instantaneously enter within the limit pressure value range due to measurement errors, such situation may cause determination of the cooked state being made incorrectly and earlier than required. Therefore, the control unit (6) monitors whether the pressure value is within the limit pressure value range throughout a predetermined duration tl , and terminates the cooking process by determining a cooked state upon detecting the pressure value being within the limit pressure value range throughout the duration tl .
  • control unit (6) terminates cooking by turning the heater (5) off at the end of a predetermined duration tmax which is longer than the predetermined duration t , if the cooked state is not determined within the duration tmax.
  • the control unit (6) terminates the cooking process at the end of a predetermined duration tmax in order to avoid overcooking.
  • the producer has determined the duration tmax in accordance with the results of numerous experiments conducted according to the amount of coffee to be cooked, and this value is saved to the memory of the control unit (6).
  • the senor (7) comprises a diaphragm (8) movable by being affected from pressure variations, a metal (9) placed on the diaphragm (8), and an inductive member (10) sensing the metal (9).
  • the sensor (7) may be of any type used in sensing pressure.
  • a sensor (7) is used comprising a diaphragm (8) movable in pressure variations, a metal (9) placed on the diaphragm (8), and an inductive member (10) enabled to precisely sense the metal (9), which can therefore be produced with a low cost and which is thus enabled to operate robustly.
  • the pressure increasing during the cooking process moves the diaphragm (8), and the pressure inside the cooking chamber (4) can be precisely measured with a low cost by precisely sensing the metal (9) on the diaphragm (8) by means of the inductive member (10).
  • the diaphragm (8), the metal (9) and the inductive member (10) are placed in a slot (11), and are positioned on the ceiling of the cooking compartment (3).
  • control unit (6) determines a cooked state according to the pressure values sensed by the sensor (7), enabling cooking Turkish coffee with identical taste and consistency every time thanks to the pressure variations being independent of elements such as dirt, etc..

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

La présente invention concerne une machine à café (1) comprenant : un corps (2) ; un compartiment de préparation (3) situé dans le corps (2) ; une chambre de préparation (4) située dans le compartiment de préparation (3), dans laquelle le processus de préparation est mis en œuvre et qui est en contact de manière étanche avec la partie supérieure du compartiment de préparation (3) pendant l'ensemble du processus de préparation ; un élément chauffant (5) situé sur la base du compartiment de préparation (3) ; et une unité de commande (6) qui lance le processus de préparation en allumant l'élément chauffant (5), interrompt le processus de préparation en éteignant l'élément chauffant (5) et permet de commander le processus de préparation.
PCT/TR2018/050561 2017-11-06 2018-10-05 Machine à café WO2019088956A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/17312 2017-11-06
TR2017/17312A TR201717312A2 (tr) 2017-11-06 2017-11-06 Bi̇r kahve maki̇nesi̇

Publications (2)

Publication Number Publication Date
WO2019088956A2 true WO2019088956A2 (fr) 2019-05-09
WO2019088956A3 WO2019088956A3 (fr) 2019-06-06

Family

ID=66331419

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2018/050561 WO2019088956A2 (fr) 2017-11-06 2018-10-05 Machine à café

Country Status (2)

Country Link
TR (1) TR201717312A2 (fr)
WO (1) WO2019088956A2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589859B1 (fr) * 2003-02-07 2008-01-23 Arcelik Anonim Sirketi Machine a cafe
CN100571586C (zh) * 2004-06-17 2009-12-23 阿塞里克股份有限公司 咖啡机以及咖啡的制备方法
TW201021749A (en) * 2008-12-02 2010-06-16 Tsung-Hsi Liu Low-power hot water flushing-and-cooking mechanism and system for supplying large quantity of water

Also Published As

Publication number Publication date
TR201717312A2 (tr) 2019-05-21
WO2019088956A3 (fr) 2019-06-06

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