WO2020181341A1 - Machine à café dotée d'un module de réglage et de commande de température - Google Patents

Machine à café dotée d'un module de réglage et de commande de température Download PDF

Info

Publication number
WO2020181341A1
WO2020181341A1 PCT/BG2020/000005 BG2020000005W WO2020181341A1 WO 2020181341 A1 WO2020181341 A1 WO 2020181341A1 BG 2020000005 W BG2020000005 W BG 2020000005W WO 2020181341 A1 WO2020181341 A1 WO 2020181341A1
Authority
WO
WIPO (PCT)
Prior art keywords
coffee
sensor
temperature
heat exchanger
boiler
Prior art date
Application number
PCT/BG2020/000005
Other languages
English (en)
Inventor
Milena Petrova STOYANOVA
Rossen Georgiev MILETIEV
Original Assignee
Mojer Ltd
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 Mojer Ltd filed Critical Mojer Ltd
Priority to HRP20230493TT priority Critical patent/HRP20230493T1/hr
Priority to ES20710413T priority patent/ES2945812T3/es
Priority to EP20710413.4A priority patent/EP3937740B1/fr
Priority to PL20710413.4T priority patent/PL3937740T3/pl
Priority to FIEP20710413.4T priority patent/FI3937740T3/fi
Priority to RS20230402A priority patent/RS64222B1/sr
Priority to SI202030201T priority patent/SI3937740T1/sl
Priority to DK20710413.4T priority patent/DK3937740T3/da
Publication of WO2020181341A1 publication Critical patent/WO2020181341A1/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
    • A47J31/5253—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 temperature

Definitions

  • the invention relates to a coffee machine with a temperature adjustment and control module, in particular for coffee machines intended for espresso.
  • the invention will find application in the food industry and the households.
  • the coffee machine consists of a pump that is connected to a boiler with heating elements.
  • the boiler is equipped with a heat exchanger which, through a pipeline, is connected to the coffee group of the machine.
  • the coffee group outlet is positioned above the filter handle.
  • the pipeline upstream the coffee group of the machine, is equipped with a device for regulating of the water flow.
  • the coffee group of the machine is provided with pipelines and valves, through which the group is connected to an additional outlet and a return pipeline to the heat exchanger.
  • the water flow regulating device is a valve, operating only in two extreme positions - fully opened and fully closed, which creates a number of inconveniences when operating the machine. (EP1074210A1)
  • Another disadvantage of the known coffee machine is the lack of a temperature sensor in the heat exchanger to measure the temperature of the heated water, which leads to insufficient precision in the regulation and increased electricity consumption.
  • the task of the invention is to create a coffee machine with a temperature adjustment and control module, that allows reducing energy losses and water consumption during the operation of the coffee machine, which can be adjusted to predefined criteria for a quality beverage, set by the customer.
  • the proposed coffee machine with a temperature adjustment and control module consists of a pump, connected to a boiler with heating elements, whereby in the boiler is installed a heat exchanger, connected to a coffee group. There is a handle with a filter under the coffee group.
  • a device for regulating the water flow is mounted on the pipeline, connecting the heat exchanger and the coffee group, whereby said device is also connected via a return pipeline to the heat exchanger.
  • a volumetric sensor for the coffee machine is installed on the supply line of the pump, while a volumetric sensor for the coffee group and a valve for filling the boiler, are fitted on the pipeline, connecting the pump to the heat exchanger.
  • a device for regulating the water flow being an adjustable valve, is fitted to the pipeline, connecting the heat exchanger to the coffee group.
  • the coffee group of the machine is also connected to the heat exchanger via an electromagnetic valve.
  • a permanent magnet is attached to the handle with the filter, as well as an identification sensor and a temperature sensor are fitted to the coffee group.
  • the coffee machine also includes a temperature adjustment and control module, connected to a server, the temperature sensor, the identification sensor, the electromagnetic valve, the pump, the volumetric sensor for the entire coffee machine and the volumetric sensor for the coffee group.
  • the temperature adjustment and control module is also connected to the water level and the water pressure sensors of the boiler, the adjustable valve, the boiler heating elements, the heat exchanger temperature sensor and the boiler filling valve.
  • a keypad and a display are also provided for the temperature adjustment and control module.
  • the number of the 3D magnetic sensors for identification, the number of the adjustable valves and the number of the temperature sensors in the heat exchanger are equal to the number of the coffee groups
  • the number of the permanent magnets in the handles is equal to the number of coffee groups of the coffee machine.
  • the main advantage of the coffee machine is that, with the help of the temperature adjustment and control module, it is possible to identity the handles and their location, to read the temperature of the water in the coffee group and the heat exchanger, to read the pressure in the boiler, to regulate the water flow through the thermosyphon cycle and to control the switching on and off of the boiler heaters, thus achieving the optimum temperature of each beverage.
  • the handle identification is based on a digital 3D sensor, which allows accurate determination of the magnitude and direction of the magnetic field, respectively the spatial arrangement of the handle in relation to the coffee group.
  • An additional advantage is the use of an adjustable mixing valve, which allows for a stepless adjustment of the water flow in the pipelines of the thermosiphon cycle, as well as the control of the electromagnetic valve of the coffee group and the pump for stopping and starting the water in the absence of the handle.
  • Figure 1 is a block diagram of an espresso coffee machine
  • Figure 2 - illustrates the identification of the handle's position with a 3D linear magnetic sensor based on the intensity and direction of the magnetic field in the following cases: a) the handle is absent;
  • the espresso coffee machine of the present invention consists of a pump 1 which, through a heat exchanger 2, installed in a boiler 3 with heating elements 4 and a pipeline 5, is connected to the coffee group 6, the outlet opening of which is set above a handle 7 with a filter - Fig. 1.
  • a volumetric sensor 9 for the coffee machine is installed on the pump supply line 8 upstream the pump 1, whereby a volumetric sensor 11 for the coffee group 6 and a valve 12 for filling the boiler 3 with water, are installed on a pipeline 10, connecting the pump 1 to the heat exchanger
  • a device for regulating the water flow being an adjustable valve 13 is installed on the pipeline
  • the coffee group 6 is connected via a return pipeline 14 to the heat exchanger 2 and to an electromagnetic valve 15.
  • An identification sensor being a 3D linear magnetic sensor 17 and a temperature sensor 18 are installed on the coffee group 6.
  • a permanent magnet 16 is attached to the handle 7 of the coffee machine.
  • the espresso machine also includes a temperature adjustment and control module 19 that receives and/or sends signals to/from the temperature sensor 18, the 3D linear magnetic sensor 17 (the identification sensor), the electromagnetic valve 15, the pump 1, the volumetric sensor 9 for the whole coffee machine and to the volumetric sensor 11 for the coffee group 6.
  • a temperature adjustment and control module 19 that receives and/or sends signals to/from the temperature sensor 18, the 3D linear magnetic sensor 17 (the identification sensor), the electromagnetic valve 15, the pump 1, the volumetric sensor 9 for the whole coffee machine and to the volumetric sensor 11 for the coffee group 6.
  • the temperature adjustment and control module 19 is also connected to a water level sensor 20 and a water pressure sensor 21 in the boiler 3, to the adjustable valve 13, the heating elements 4 located in the boiler 3, to a temperature sensor 24 of the heat exchanger 2 and to the valve 12 for filling the boiler 3 with water.
  • a keypad 22 and a display 23 are also provided for the temperature adjustment and control module 19.
  • the temperature adjustment and control module 19 is also connected to a server 25 for transmitting information for the parameters of each beverage and sensor data, as well as for receiving and automatically adjusting the temperature control parameters for each coffee group (the temperature of the coffee group 6, the temperature in the heat exchanger 2, pressure in the pump 1, etc.) to achieve an optimum quality and quantity of the desired beverage. These data can also be manually set and tuned up in the Temperature adjustment and control module 19.
  • the permanent magnet 16 By placing the handle 7 in the coffee group 6 of the coffee machine, the permanent magnet 16 creates an additional magnetic field B x , which interacts with the external magnetic field (terrestrial magnetic field) B 0 - Fig. 1.
  • the direction, intensity and time for establishing of the resultant magnetic field B ( B 1 or B 2 ) determine the type of the handle placed - Fig.2.
  • the handle 7 may be fitted with one or two coffee dispensers, respectively for one or twocoffees.
  • the handle 7 may be fitted with one or two coffee dispensers, respectively for one or twocoffees.
  • the number of the 3D magnetic sensors of the identification sensor 17, as well as the number of the adjustable valves 13 and the number of the temperature sensors 24 in the heat exchanger 2 is equal to the number of the coffee groups 6.
  • the number of the permanent magnets 16 is equal to the number of the handles 7, whereby the permanent magnets 16 are directed in opposite directions in the single and double bandies
  • the temperature sensors 18 and 24 submit information to the temperature adjustment and control module 19 which, based on predetermined values for the temperature of these sensors, determines and sets the position of the adjustable valve 13. In this way, the water flow in the thermosiphdn cycle of the coffeemachine is regulated in order to achieve minimum temperature losses in the metal of the coffee group 6 and to prevent excessive increase of the water temperature in the upper part of the heat exchanger 2 - Fig, 1.
  • the temperature adjustment and control module 19 switches on the electromagnetic valve 15 and the pump 1 for releasing water to clean the coffee group 6 after the beverage is made.
  • the temperature adjustment and control module 19 determines the time from the last brewed beverage and the temperature deviation in the metal of the coffee group 6 from a predetermined value. If this temperature exceeds certain limits, the electromagnetic valve 15 of the coffee group and the pump 1 will be switched on for a certain period of time until the temperature deviation becomes less than the specified value.
  • the temperature adjustment and control unit 19 Upon completion of the beverage preparation or the cleaning process, the temperature adjustment and control unit 19 sends a signal to the display 23.
  • the information refers to the water temperature in the coffee group 6 and the heat exchanger 2 respectively, the measured amount of water passed through the coffee group 6 from the volumetric sensor 11, the total amount of water passed through the coffee machine from the volumetric sensor 9, the time for brewing or cleaning, the pressure in the boiler 3 from the water pressure sensor 21 and the magnetic field intensity, measured by the identification sensor 17.
  • the decrease in the water level in the boiler 3 is read by the water level sensor 20 and when it is lowered, the valve 12 opens until the water is added up.
  • the heating elements 4 are controlled to maintain a constant water temperature in the boiler 3.
  • the temperature adjustment and control module 19 monitors the temperature of the metal of the coffee group 6 and the temperature of the heat exchanger 2 through the temperature sensors 18 and 24 and, based on a Proportiona-Integral-Derivative (PID) controller, calculates the position of the adjustable valve 13, which determines the flow of the circulating water during the thermosyphon cycle and accordingly the metal temperature of the respective coffee group.
  • PID Proportiona-Integral-Derivative
  • the water temperature in the boiler 3 is determined by measuring of the water pressure in the boiler 3 by means of the water pressure sensor 21, thus indirectly controlling the temperature in the heat exchanger 2 by switching on and off the heating elements 4 which heat the water in the boiler 3 and in the heat exchanger 2.
  • the temperature adjustment and control module 19 determines the presence of a handle 7 in the coffee group by measuring the intensity and direction of the magnetic field, created by the permanent magnet 16, attached to the handle 7, as well as the time for establishing it.
  • a beverage can be started by pressing a key on the keypad 22, resulting in switching on of the electromagnetic valve 15 and the pump 1.
  • the temperature adjustment and control module 19 switches on the electromagnetic valve 15 and the water pump 1, so that the water to flow through the coffee group 6, the amount of which is determined by the volumetric sensor 11 to remove the residual coffee from the coffee group 6.
  • the coffee machine When the coffee machine is not used for a certain (predetermined) time interval and if the metal temperature measured by the temperature sensor 18 still reads lower values than the preset parameters in the temperature adjustment and control module 19 , after the handle 7 is removed from the coffee group, water starts running through the coffee group. This is done by switching on the electromagnetic valve 15 and the pump 1. With the flow of water, the metal temperature of the coffee group 6 increases and the temperature in the heat exchanger 2 decreases. The module 19 monitors the two sensors 18 and 24 and when they reach the set parameters, the process is stopped and the coffee group 6 has reached the optimum operating temperature. When the water level in the boiler 3 is lowered, determined by the water level sensor 20, the electromagnetic valve 12 is activated to increase the level.
  • the temperature adjustment and control module 19 is also connected to a server 25, where the beverage information is stored and from where the temperature control parameter settings can be obtained, depending on a number of other factors - the type of the coffee, the coffee machine location, customer preferences for the drink characteristics, the season and so on.
  • the information from the temperature sensors 18 and 24, from the water pressure sensor 21, the volume of water passed from the volumetric sensor 11 of the coffee group 6 and the volumetric sensor 9 of the coffee machine, are displayed on the display 23.

Landscapes

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

Abstract

La présente invention concerne une machine à café qui est constituée d'une pompe (1) qui est reliée au groupe café (6) par l'intermédiaire d'un échangeur de chaleur (2) installé dans la chaudière (3). Un capteur volumétrique (9) est monté sur la pompe (1) et un capteur volumétrique (11) et une vanne (12) pour remplir la chaudière (3) sont installés entre la pompe (1) et l'échangeur de chaleur (2). Une vanne réglable (13) pour l'écoulement d'eau est installée entre l'échangeur de chaleur (2) et le groupe café (6). Un aimant permanent (16) est fixé à la poignée (7), et un capteur d'identification (17) et un capteur de température (18) sont installés sur le groupe café (6). La machine à café comprend également un module de réglage et de commande de température (19), qui reçoit et/ou envoie des signaux depuis/vers le capteur de température (18), le capteur d'identification (17), la vanne électromagnétique (15), la pompe (1) et les capteurs volumétriques (9) et (11). Le module de réglage et de commande de température (19) est également connecté à un serveur (25), au capteur de niveau d'eau (20) et au capteur de pression d'eau (21) dans la chaudière (3), à la vanne réglable (13), aux éléments chauffants ( 4) dans la chaudière (3), au capteur de température (24) de l'échangeur de chaleur (2) et à la vanne (12) pour remplir la chaudière (3).
PCT/BG2020/000005 2019-03-11 2020-02-18 Machine à café dotée d'un module de réglage et de commande de température WO2020181341A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
HRP20230493TT HRP20230493T1 (hr) 2019-03-11 2020-02-18 Aparat za kavu sa modulom za podešavanje i kontrolu temperature
ES20710413T ES2945812T3 (es) 2019-03-11 2020-02-18 Máquina de café con un módulo de ajuste y control de temperatura
EP20710413.4A EP3937740B1 (fr) 2019-03-11 2020-02-18 Machine à café dotée d'un module de réglage et de commande de température
PL20710413.4T PL3937740T3 (pl) 2019-03-11 2020-02-18 Ekspres do kawy z modułem regulacji i sterowania temperaturą
FIEP20710413.4T FI3937740T3 (fi) 2019-03-11 2020-02-18 Kahvikone lämpötilan säätö- ja ohjausmoduulilla
RS20230402A RS64222B1 (sr) 2019-03-11 2020-02-18 Aparat za kafu sa modulom za podešavanje i kontrolu temperature
SI202030201T SI3937740T1 (sl) 2019-03-11 2020-02-18 Kavni avtomat s temperaturnim prilagajanjem in kontrolno enoto
DK20710413.4T DK3937740T3 (da) 2019-03-11 2020-02-18 Kaffemaskine med temperaturjusterings- og styremodul

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG4272 2019-03-11
BG427219 2019-03-11

Publications (1)

Publication Number Publication Date
WO2020181341A1 true WO2020181341A1 (fr) 2020-09-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BG2020/000005 WO2020181341A1 (fr) 2019-03-11 2020-02-18 Machine à café dotée d'un module de réglage et de commande de température

Country Status (1)

Country Link
WO (1) WO2020181341A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022075934A1 (fr) * 2020-10-07 2022-04-14 Di̇mes Gida Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Machine à café filtre permettant une production à l'échelle industrielle
WO2023020610A1 (fr) * 2021-08-19 2023-02-23 广东顺德科锐玛电器有限公司 Dispositif de commande de sortie d'eau d'une machine à café

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074210A1 (fr) 1999-08-04 2001-02-07 Nuova Faema S.p.A. Machine à café espresso
US20140272025A1 (en) * 2013-03-15 2014-09-18 Boyd Coffee Company Beverage brewing apparatus with user-variable, flow-controlled heating and by-pass dispensing of a liquid
US20160296065A1 (en) * 2013-10-18 2016-10-13 Carimali S.P.A. Device and process for a controlled beverage dispensing
US20170049259A1 (en) * 2014-02-20 2017-02-23 Cma Macchine Per Caffe' S.R.L. Coffee machine and relative control method
US20190053656A1 (en) * 2017-08-17 2019-02-21 Eversys Holding Sa Beverage machine and method for producing coffee-based beverages

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074210A1 (fr) 1999-08-04 2001-02-07 Nuova Faema S.p.A. Machine à café espresso
US20140272025A1 (en) * 2013-03-15 2014-09-18 Boyd Coffee Company Beverage brewing apparatus with user-variable, flow-controlled heating and by-pass dispensing of a liquid
US20160296065A1 (en) * 2013-10-18 2016-10-13 Carimali S.P.A. Device and process for a controlled beverage dispensing
US20170049259A1 (en) * 2014-02-20 2017-02-23 Cma Macchine Per Caffe' S.R.L. Coffee machine and relative control method
US20190053656A1 (en) * 2017-08-17 2019-02-21 Eversys Holding Sa Beverage machine and method for producing coffee-based beverages

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022075934A1 (fr) * 2020-10-07 2022-04-14 Di̇mes Gida Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Machine à café filtre permettant une production à l'échelle industrielle
WO2023020610A1 (fr) * 2021-08-19 2023-02-23 广东顺德科锐玛电器有限公司 Dispositif de commande de sortie d'eau d'une machine à café

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