KR102161569B1 - User Customized Semi-automatic Coffee Machine - Google Patents

Abstract

The present invention includes a housing, a hot water boiler including a first heater, a porta filter, a group head, a second heater installed inside the group head, a pressure control unit, a sensor unit measuring the temperature and pressure of hot water, and pressure and temperature. It includes a control unit to control, the control unit relates to a user-customized semi-automatic coffee machine that adjusts the pressure and temperature based on the input coffee information. The user-customized semi-automatic coffee machine of the present invention is capable of adjusting the temperature, pressure, and extraction amount of coffee in the semi-automatic coffee machine according to the type of beans, roasting status of beans, blending ratio of roasted beans and grinding status, as well as the extracted coffee beans. It provides the advantage of being able to freely control the acidity, flavor, density (Body) and aftertaste.

Description

User Customized Semi-automatic Coffee Machine}

The present invention relates to a user-customized semi-automatic coffee machine, and more particularly, a housing, a hot water boiler including a first heater, a porta filter, a group head, a second heater installed inside the group head, a pressure control unit, and A sensor unit for measuring temperature and pressure, and a control unit for controlling the pressure and temperature, wherein the control unit relates to a user-customized semi-automatic coffee machine that adjusts the pressure and temperature based on input coffee information.

Coffee drinks made using coffee beans are largely divided into instant coffee and coffee beans. Methods of extracting coffee from coffee beans include filtration, decoction, brewing, and pressurized extraction, and the most commonly used are drip coffee, a filtration method, and espresso coffee, a pressurized extraction method.

Espresso coffee is a very strong Italian coffee that is extracted by compressing air and is drunk in a Demtasse cup.It is coffee extracted by brewing coffee in a short time by providing high-pressure hot water to ground coffee beans. to be.

The device for extracting espresso coffee includes a filter unit (porta filter) for extracting coffee by receiving ground coffee beans, a boiler for providing hot water, and a pump for supplying hot water to the coffee beans. Includes.

These espresso coffee extraction devices have been developed in various forms for use in coffee shops, industries, companies, and homes. In particular, as one of the conventional espresso coffee extraction apparatuses, after pulverizing roasted coffee beans and placing them in an inverted triangular cone-shaped filter, using an extractor called coffee drip, place the ground coffee beans on the filter and pour heated water. E, when the user grabs the loop of the cup for receiving coffee with one hand and pushes it like a drawer under the outlet formed under the filter position of the extractor, the switch installed in the extractor operates to activate the heating means, and at this time, the water is heated to the top of the coffee. When it is high, the espresso is extracted, and there is a device that allows the espresso to be extracted downwards by the influence of gravity.

The most important factor in determining the flavor of espresso coffee is the type of green coffee beans and roasting (how much coffee beans are roasted). There are two seeds in the fruit of the coffee tree, which are called green beans. In the state of the green beans, they have no taste and are just hard seeds, but when they are roasted, they have different flavors depending on the type of green beans.

Roasting is a process that expands tissue by applying heat to green beans and causes chemical changes to bring out taste and aroma. It is a'time temperature dependent process'. Through the roasting process, green beans with an unpleasant flavor are transformed into dark brown savory beans, and finally, coffee beans are reborn. It is known that more than 600 different chemical substances are generated in green beans through the roasting process.

The types and degree of roasting of green beans described above are areas that cannot be controlled at the espresso machine level, and the five control variables that affect the flavor of the espresso coffee extracted at the machine level are the degree of grain grinding, tempering pressure, water pressure, water temperature and extraction volume. to be.

Looking at a patent document related to an espresso machine capable of adjusting coffee flavor, KR Patent Application No. 10-2015-7027732 (name of the invention: method and apparatus for replicating coffee flavor) describes brewing of coffee beverages. A computer-implemented method for controlling, comprising: providing instructions for receiving an identifier for the coffee beverage associated with a set of brew parameters used to make a coffee beverage; And retrieving the set of brew parameters using the identifier from a database storing a set of brew parameters. A computer-implemented method for controlling brewing of a coffee beverage is disclosed.

However, in the case of the above-described patent document, there is a problem that a specific method of implementing the brew parameter in an espresso machine cannot be presented.

Throughout this specification, a number of papers and patent documents are referenced and citations are indicated. The disclosure contents of the cited papers and patent documents are incorporated by reference in this specification as a whole, and the level of the technical field to which the present invention belongs and the contents of the present invention are more clearly described.

The inventors of the present invention have made diligent research efforts to develop a user-customized semi-automatic coffee machine that can control the temperature, pressure and extraction amount of the semi-automatic coffee machine according to the roasting and grinding conditions of the coffee beans. As a result, the user-customized semi-automatic coffee machine housing, a hot water boiler including a first heater, a porta filter, a group head, a second heater installed inside the group head, a pressure control unit, a sensor measuring the temperature and pressure of the hot water It includes a control unit for controlling the portion and pressure and temperature, and the fact that the above-described problem can be solved when the control unit adjusts the pressure, temperature, and the amount of coffee extracted based on the input bean information and the grinding information of the bean. Found and completed the present invention.

Accordingly, an object of the present invention is to provide a user-customized semi-automatic coffee machine.

Other objects and advantages of the present invention will become more apparent by the following detailed description, claims and drawings.

The present invention provides a semi-automatic coffee machine.

The inventors of the present invention have made diligent research efforts to develop a user-customized semi-automatic coffee machine that can control the temperature, pressure and extraction amount of the semi-automatic coffee machine according to the roasting and grinding conditions of the coffee beans. As a result, the user-customized semi-automatic coffee machine housing, a hot water boiler including a first heater, a porta filter, a group head, a second heater installed inside the group head, a pressure control unit, a sensor measuring the temperature and pressure of the hot water It includes a control unit for controlling the portion and pressure and temperature, and the fact that the above-described problem can be solved when the control unit adjusts the pressure, temperature, and the amount of coffee extracted based on the input bean information and the grinding information of the bean. Confirmed.

According to an aspect of the present invention, the present invention provides a housing, provided in the housing, connected to a water tank and a supply pipe to supply water used when extracting coffee, and a first heater provided inside the water tank. A hot water boiler that generates hot water by heating the supplied water, a pota filter having a lower portion of the outlet for receiving the pulverized coffee powder and discharging the extracted coffee, the pota filter is detachable, the hot water boiler and the hot water supply pipe A group head that supplies hot water supplied through the hot water supply pipe to the porta filter to extract coffee, a second heater installed inside the group head and reheats hot water supplied to the porta filter, A pressure control unit provided on the hot water supply pipe and adjusting a pressing pressure of hot water supplied to the group head according to a user's setting, a sensor unit measuring the temperature, pressure and amount of extracted coffee of the hot water, and the pressure control And a control unit for controlling an amount of the unit, a first heater, a second heater, and the extracted coffee, wherein the control unit includes a pressure of the pressure control unit and a temperature of the first heater and the second heater based on the input coffee bean information. Provides a user-customized semi-automatic coffee machine that adjusts.

The term “porta filter” used herein may refer to an entire coffee filter having a filter and a coffee outlet formed below the coffee receiving unit, and used by being attached to and attached to a semi-automatic coffee machine.

The term “group head” used herein may mean a part of a semi-automatic coffee machine that fixes and heats a porter filter and supplies hot water to the porter filter.

The term'reference matching table algorithm' used in this specification is a'number of cases experiment' and/or'predicts the effect of a number of variables included in the bean information on coffee taste and the expected result according to the combination. It can mean any algorithm that can derive the optimum coffee taste through'simulation'.

According to a preferred aspect of the present invention, the bean information of the present invention may preferably be bean roasting information.

It is a very important configuration in the present invention that the bean information is coffee bean roasting information. This is because the key factor determining the taste of the extracted coffee is coffee bean roasting information, and the hot water temperature, hot water pressure, and the amount of extracted coffee of the semi-automatic coffee machine are determined based on the coffee bean roasting information.

According to a preferred aspect of the present invention, the roasting information of the present invention may be preferably input through a QR code, RFID, NFC recognition or a dedicated application input, more preferably a QR code, NFC recognition or a dedicated application It may be input through an input, more preferably through a QR code recognition or a dedicated application input, and most preferably through a QR code recognition.

According to a preferred aspect of the present invention, the QR code of the present invention may be preferably printed on bean packaging.

In the present invention, it is very important to input coffee bean roasting information based on the QR code printed on the bean packaging. This is because the semi-automatic coffee machine of the present invention controls the product through a smartphone application, and when various coffee roasting information is input through the QR code printed on the bean packaging, it is possible to simplify the process of entering the complicated coffee roasting information.

According to a preferred aspect of the present invention, the control unit of the present invention may be controlled by manipulation of the smartphone application in connection with a smartphone application (App).

In the present invention, controlling a semi-automatic coffee machine through a smartphone application operation is a very important configuration. This is because various coffee machine control solutions can be provided using the communication network included in the smartphone.

According to a preferred aspect of the present invention, the smart phone application of the present invention may preferably be operated including the following steps: (a) executing an application for executing a user-customized semi-automatic coffee machine; (b) recognizing a QR code including coffee roasting information using a smartphone; And (c) setting a taste of coffee to be extracted.

According to a preferred embodiment of the present invention, the step of setting the taste of the coffee of the present invention may preferably be setting acidity, flavor, density (Body) and aftertaste.

According to a preferred embodiment of the present invention, the roasting information of the present invention may be preferably selected from the group including the type of beans, the origin of the beans, the degree of roasting beans, the moisture content of the beans and the hardness of the beans.

According to a preferred aspect of the present invention, the pressure control unit of the present invention may preferably include a bypass valve that selectively drains according to a user's setting and adjusts the pressing pressure of hot water supplied to the group head.

According to a preferred aspect of the present invention, the control unit of the present invention preferably substitutes the inputted bean information into a reference matching table algorithm to determine the pressure of the pressure control unit and the first heater and the second heater. It may be to control the temperature of.

It is a very important configuration to use the reference matching table algorithm in the present invention. This is because it is impossible to calculate the optimal semi-automatic coffee machine setting value according to various bean conditions such as bean type, bean origin, bean roasting degree, bean moisture content and bean hardness without using the reference matching table algorithm.

According to another aspect of the present invention, the present invention provides a housing, provided in the housing, connected to a water tank and a supply pipe to supply water used when extracting coffee, and a first heater provided inside the water tank. A hot water boiler that generates hot water by heating the supplied water, a pota filter having a lower portion of the outlet for receiving the pulverized coffee powder and discharging the extracted coffee, the pota filter is detachable, the hot water boiler and the hot water supply pipe A group head that supplies hot water supplied through the hot water supply pipe to the porta filter to extract coffee, a second heater installed inside the group head and reheats hot water supplied to the porta filter, A pressure control unit provided on the hot water supply pipe and adjusting a pressing pressure of hot water supplied to the group head according to a user's setting, a sensor unit measuring the temperature, pressure and amount of extracted coffee of the hot water, and the pressure control And a control unit for controlling an amount of the unit, a first heater, a second heater, and the extracted coffee, wherein the control unit includes a pressure of the pressure control unit and a temperature of the first heater and the second heater based on the input coffee bean information. And the coffee bean information is coffee roasting information and coffee grinding degree information of the coffee bean grinder, and the control unit is interlocked with a smartphone application to provide a user-customized semi-automatic coffee machine controlled by the operation of the smartphone application. do.

According to a preferred aspect of the present invention, the coffee bean grinder of the present invention may be preferably connected to the smartphone or a user-customized semi-automatic coffee machine for information exchange.

In the present invention, it is a very important configuration to include a grinder interlocked with a smart phone or a user-customized semi-automatic coffee machine. This is because, in the case of including a grinder linked with a smart phone or a user-customized semi-automatic coffee machine, the best coffee grind degree can be automatically calculated and inputted based on the input roasting information.

According to a preferred aspect of the present invention, the bean grinder of the present invention may preferably be provided with a plurality of hoppers for storing roasted beans.

It is a very important configuration in the present invention to include a grinder having a plurality of hoppers. This is because, when various types of roasted beans are stored in the grinder hopper, various types of coffee can be extracted by mixing various types of ground beans according to the user's selection.

According to a preferred aspect of the present invention, roasted beans in different states may be preferably stored in a plurality of hoppers for storing coffee beans of the present invention.

According to a preferred aspect of the present invention, the control unit of the present invention preferably substitutes the input coffee bean information into a reference matching table algorithm to determine the pressure of the pressure control unit, the first heater, and the second heater. It may be to control the temperature of the coffee beans and the degree of grinding beans in the coffee bean grinder.

According to a preferred embodiment of the present invention, the roasting information of the present invention may be preferably selected from the group including the type of beans, the origin of the beans, the degree of roasting beans, the moisture content of the beans and the hardness of the beans.

According to a preferred aspect of the present invention, the roasting information of the present invention may be inputted according to the type of beans stored in each of the plurality of hoppers.

According to another aspect of the present invention, the present invention provides a housing, provided in the housing, connected to a water tank and a supply pipe to supply water used when extracting coffee, and a first heater provided therein to provide the water tank. A hot water boiler that generates hot water by heating the water supplied from the hot water, a pota filter having a lower portion of the outlet for receiving the ground coffee powder, and discharging the extracted coffee, the pota filter is detachable, the hot water boiler and the hot water A group head connected to a supply pipe and configured to supply hot water supplied through the hot water supply pipe to the porta filter to extract coffee, and a second heater installed inside the group head to reheat hot water supplied to the porta filter , A pressure control unit provided on the hot water supply pipe and controlling a pressing pressure of hot water supplied to the group head according to a user's setting, a sensor unit measuring the temperature, pressure and amount of extracted coffee of the hot water, and the pressure A semi-automatic coffee machine including a control unit, a first heater, a second heater, and a control unit for controlling the amount of extracted coffee, connected to the semi-automatic coffee machine for information exchange, and a plurality of hoppers for storing roasted beans (Hopper It provides a user-customized semi-automatic coffee machine system comprising a coffee bean grinder having a) and a smartphone having a smartphone application (App) for controlling the control unit.

According to a preferred aspect of the present invention, the control unit of the present invention preferably adjusts the pressure of the pressure control unit and the temperature of the first heater and the second heater based on the input bean information, and the bean information is preferably The information may be information on roasting coffee beans and information on the degree of grinding beans in a coffee bean grinder.

According to a preferred embodiment of the present invention, the coffee bean grinder of the present invention may be directly connected to the semi-automatic coffee machine by wireless or wired connection, or indirectly connected through the smartphone.

According to a preferred embodiment of the present invention, roasted beans in different states may be preferably stored in a plurality of hoppers for storing coffee beans of the present invention.

According to a preferred aspect of the present invention, the roasted beans in different states included in the plurality of hoppers for storing the beans of the present invention are preferably pulverized in accordance with the command of the control unit and It may be to determine the blending ratio.

According to a preferred aspect of the present invention, the smart phone application (App) of the present invention may preferably include a QR code generation unit including a coffee bean roasting tablet.

In the present invention, it is a very important configuration to include a QR code generator that automatically generates a QR code when the coffee bean roasting information is input to the smartphone. This is because when a separate program is used to generate the QR code, the procedure for generating the QR code becomes complicated, and the input roasting information cannot be directly transferred to the semi-automatic coffee machine for use.

The features and advantages of the present invention are summarized as follows:

(a) The present invention is a housing, provided in the housing, connected to a water tank and a supply pipe to supply water used when extracting coffee, and heating the water supplied from the water tank by a first heater provided therein. A hot water boiler that generates hot water, a porta filter having a lower portion of the outlet for receiving the pulverized coffee powder and discharging the extracted coffee, the porta filter is detachable and connected to the hot water boiler and a hot water supply pipe, and the A group head that supplies hot water supplied through a hot water supply pipe to the porta filter to extract coffee, a second heater installed inside the group head to reheat hot water supplied to the porta filter, and on the hot water supply pipe A pressure control unit that is provided and adjusts a pressing pressure of hot water supplied to the group head according to a user's setting, a sensor unit that measures the temperature, pressure, and amount of extracted coffee, and the first heater , A second heater and a control unit for controlling the amount of the extracted coffee, wherein the control unit is customized for a user to adjust the pressure of the pressure control unit and the temperature of the first heater and the second heater based on the input coffee bean information. We provide semi-automatic coffee machines.

(b) The user-customized semi-automatic coffee machine of the present invention is capable of controlling the temperature, pressure, and extraction amount of coffee according to the type of coffee beans, the roasting state of the beans, the blending ratio of the roasted beans, and the grinding state. It provides the advantage of freely controlling the acidity, flavor, density, and aftertaste of coffee beans.

1 shows a conceptual diagram of a user-customized semi-automatic coffee machine system.
2 shows a reference diagram related to input coffee information.
3 shows an initial menu of a smartphone application.
FIG. 4 shows a case of clicking'Enter roasting information' in the initial menu of a smartphone application.
FIG. 5 shows an example of recognizing bean information through a QR code recognition unit by clicking'Scan Roasting Information' in the roasting information input page.
6 shows a case where'automatic coffee taste selection' is clicked in the initial menu of a smartphone application.
7 shows a state in which coffee taste is determined through a reference matching table algorithm when coffee taste is automatically selected.
8 shows a case where'manual selection of coffee taste' is clicked in the initial menu of a smartphone application.
9 shows an example of clicking'Menu' in the initial menu of a smartphone application.
10 shows a case where'Community' is clicked in the initial menu of a smartphone application.

In the present invention, various transformations may be applied and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all conversions, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of a user-customized semi-automatic coffee machine system 100 according to an embodiment of the present invention.

Referring to FIG. 1, a user-customized semi-automatic coffee machine system 100 according to an embodiment of the present invention includes a housing 10, a hot water boiler 20, a supply pipe 21, a first heater 22, and a water tank. 23), a porta filter 30, an extraction port 31, a hot water supply pipe 40, a pressure control unit 41, a group head 50, a second heater 51, a sensor unit 60, and a control unit 70 ), including a semi-automatic coffee machine (1), a coffee bean grinder (2) including a multi-hopper (2-1), a smartphone (3) and a QR code (4-1), a QR code generation unit (4-2) , A QR code recognition unit 4-3, a user input unit 4-4, and an application 4 including an operation unit 4-5.

The semi-automatic coffee machine (1) includes a housing (10), a hot water boiler (20), a supply pipe (21), a first heater (22), a water tank (23), a pota filter (30), an extraction port (31), and hot water. It includes a supply pipe 40, a pressure control unit 41, a group head 50, a second heater 51, a sensor unit 60, and a control unit 70.

Referring to FIG. 1, first, a housing 10 constituting the main body of the semi-automatic coffee machine 1 is provided, and a hot water boiler 20 is provided inside the housing 10. The hot water boiler 20 is connected by a water tank 23 outside the housing 10 and a supply pipe 21, and is used when extracting coffee from the water tank 23 through the supply pipe 21. Water will be supplied.

The water tank 23 stores water supplied to the hot water boiler 20, and therein, a bugu valve for blocking water drawn from the outside through an intake pipe (not shown) according to the level of the water received ( Not shown) is preferably provided.

A first heater 22 is provided inside the hot water boiler 20 to generate hot water by heating water supplied from the water tank 23, and the hot water boiler 20 is inside the hot water boiler 20. ) It is preferable that a first sensor (sensor unit) 60 for measuring the temperature of hot water heated by the first heater 22 is provided. The temperature of the hot water in the hot water boiler 20 measured by the first sensor (sensor unit) 60 is transmitted to the controller 70 to be described later.

A hot water discharge pipe (not shown) capable of discharging the generated hot water is connected to the hot water boiler 20, and a hot water discharge valve (not shown) is provided on the hot water discharge pipe (not shown) according to the user's selective opening and closing. The hot water in the hot water boiler 20 is discharged to the outside.

The water received in the water tank 23 is supplied to the hot water boiler 20 by a water supply pump (not shown) provided in the supply pipe 21, and the supply pipe 21 is branched from the supply pipe 21 A return pipe (not shown) is provided, and the return pipe (not shown) serves to return water supplied through the supply pipe 21 back to the water tank 23.

A relief valve (not shown) is provided on the return pipe (not shown), and the relief valve (not shown) is selectively opened according to the internal pressure of the supply pipe 21 to return water to the water tank 23 It serves to adjust the internal pressure of the supply pipe (21).

The housing 10 is provided with a group head 50 connected to the hot water boiler 20 and a hot water supply pipe 40 to receive hot water in the hot water boiler 20, and the group head 50 It is preferable that the porta filter 30 for accommodating the coffee powder is attached and detached, and the porta filter 30 has an extraction port 31 for discharging the extracted coffee at the bottom.

The group head 50 is connected to the hot water boiler 20 and the hot water supply pipe 40, and supplies hot water supplied through the hot water supply pipe 40 to the porta filter 30 to extract coffee. A second heater 51 is provided inside the group head 50, and the second heater 51 selectively supplies hot water supplied to the porta filter 30 according to a temperature set by a drinker or a user. Reheat to supply hot water at a set temperature selected by a food or drinker or a user. In the group head 50, a second sensor (sensor unit, 60) for measuring the temperature of hot water supplied to the porta filter 30 is preferably provided, and the second sensor (sensor unit, 60) is The measured temperature is transmitted to the control unit 70.

The control unit 70 includes a temperature of hot water in the hot water boiler 20 set by a user and a temperature of hot water supplied to the porta filter 30 through the group head 50 and a first sensor (sensor unit, 60). ) And the temperature measured by the second sensor (sensor unit, 60), and PID (Proportional Integral and Derivative) so that the temperature of the hot water in the hot water boiler 20 and the hot water supplied to the porta filter 30 are maintained at the set temperature. ) Serves to control the operation of the first heater 22 and the second heater 51 through control. The control unit 70 maintains the temperature of the hot water in the hot water boiler 20 and the temperature of the hot water supplied to the porta filter 30 at a set temperature through PID control.

A bypass valve (not shown) is provided on the hot water supply pipe 40 for supplying hot water in the hot water boiler 20 to the group head 50. The bypass valve (not shown) serves to selectively drain the hot water supplied to the hot water supply pipe 40 according to the user's setting to adjust the pressing pressure of the hot water supplied to the group head 50, and It is preferable that the control unit 70 controls the operation of the pass valve (not shown). It is preferable that a pressure gauge (not shown) for measuring the internal pressure of the hot water supply pipe 40 is provided on the hot water supply pipe 40.

The hot water boiler 20 and the group head 50 are provided with a sensor unit 60 to determine the temperature of hot water in the hot water boiler 20 and supplied to the porta filter 30 in the group head 50. Measure the temperature of hot water. It is preferable that a first sensor (sensor unit) 60 is provided in the hot water boiler 20 and a second sensor (sensor unit) 60 is provided within the group head 50.

The temperature information measured by the first sensor (sensor unit, 60) and the second sensor (sensor unit, 60) is transmitted to the control unit 70, and the control unit 70 includes the first sensor (sensor unit, 60) and the temperature information measured by the second sensor (sensor unit, 60) is received and compared with the temperature set by the user, and then the temperature of the hot water measured by the sensor unit 60 is maintained at the temperature set by the user. It controls the operation of the first heater 22 and the second heater 51 through PID (Proportional Integral and Derivative) control, and controls the operation of the bypass valve (not shown). A drain tray is located under the group head 50, and the drain tray accommodates residual water discharged through a residual water discharge pipe branching from the hot water supply pipe 40.

1, a variable pressure drainage pipe (not shown) is branched from the hot water supply pipe 40, and the variable pressure drainage pipe (not shown) controls the internal pressure of hot water supplied to the group head 50 For this purpose, a part of the hot water supplied to the group head 50 is selectively discharged to the drain tray.

A second bypass valve (not shown) is provided on the variable pressure discharge pipe (not shown), and the second bypass valve (not shown) is selectively supplied to the group head 50 according to a user's setting. A portion of the hot water is drained to control the pressing pressure of hot water supplied to the group head 50. The operation of the second bypass valve (not shown) is also preferably controlled by the control unit 70.

The bypass valve (not shown) and the second bypass valve (not shown) are preferably configured in an electronic manner in which the control unit 70 can adjust the opening amount, but the control unit 70 is not limited thereto. In addition, the user may manually adjust the opening amount, and the position of the second bypass valve (not shown) may be provided anywhere on the hot water supply pipe 40 and the variable pressure drainage pipe (not shown).

An embodiment of the semi-automatic coffee machine 1 according to the configuration of the present invention will be described as follows.

Water accommodated in the water tank 23 is supplied to the hot water boiler 20 through the supply pipe 21 by driving a water supply pump (not shown). A return pipe (not shown) is branched into the supply pipe 21, and a relief valve (not shown) provided on the return pipe (not shown) when the water supplied through the supply pipe 21 is supplied above a set pressure Is opened to return part of the water supplied through the supply pipe 21 back to the water tank 23 to adjust the pressure of the supply pipe 21.

The water supplied into the hot water boiler 20 is heated by the first heater 22 and is generated as hot water, and the generated hot water passes through the group head 50 through the hot water supply pipe 40 and the coffee powder is accommodated. It is supplied to the filter 30.

At this time, hot water is supplied at high pressure by the pressure generated by the hot water boiler 20, and a residual water discharge pipe (not shown) and a variable pressure discharge pipe (not shown) are branched from the hot water supply pipe 40 to control the pressure of the hot water. The bypass valve (not shown) and the second bypass valve (not shown) are opened so that hot water is supplied at a preset pressure or at a specified pressure by the user's operation, and a part of the supplied hot water is drained to the drain tray to supply hot water. The pressure in 40 is regulated.

A first sensor (sensor unit, 60) and a second sensor (sensor unit, 60) are provided in the hot water boiler 20 and the group head 50, respectively, and the temperature and group of the hot water in the hot water boiler 20 The temperature of hot water supplied to the porta filter 30 through the head 50 is measured, and the measured information is transmitted to the control unit 70.

The control unit 70 compares the temperature information measured by the first sensor (sensor unit, 60) and the second sensor (sensor unit, 60) with temperature information set by the user, and the first sensor (sensor unit, 60) And the first heater 22 and the group head 50 in the temperature boiler 110 through PID control to maintain the temperature set by the user when the temperature of the hot water measured by the second sensor (sensor unit, 60) is low. The second heater 51 is operated to raise the temperature to supply hot water having a temperature set by the user to the porta filter 30.

Therefore, the pressure of hot water supplied to the portafilter 130 can be arbitrarily adjusted, so that the coffee can be extracted while controlling the concentration of coffee by pressure control, and it is possible to reproduce not only espresso, but also a filtered drip coffee, so that the taste of the food and drinker It is possible to provide suitable coffee, and the controller 70 operates the first heater 22 in the hot water boiler 20 and the second heater 51 in the group head 50 through PID control, so that the hot water boiler 20 The temperature of the hot water in the inside and the temperature of the hot water supplied to the porta filter 30 can be maintained at the temperature set by the user, so that high-quality coffee can be extracted.

The coffee bean grinder 2 includes a multi hopper 2-1. Since the coffee bean grinder 2 including the multi-hopper 2-1 includes a plurality of hoppers at the top of the bean grinder, different beans can be accommodated in each hopper, and under the control of the controller 70 Different ratios of beans can be blended and ground each time.

The control unit 70 controls the type of coffee beans, the blending ratio, the degree of grinding, the temperature, pressure, and extraction amount of hot water through the smart phone application 4 included in the smart phone 3.

The smartphone application 4 includes a QR code generation unit 4-2, a QR code recognition unit 4-3, a user input unit 4-4, and an operation unit 4-5.

The QR code generation unit 4-2 serves to generate a QR code 4-1 including roasting information of coffee beans. When the roaster inputs the type, ratio, and degree of roasting of roasted beans to the QR code generator 4-2, a QR code 4-1 including the input information is generated. At this time, the roaster prints the generated QR code (4-1) and attaches it to the packaging for bean packaging or discloses it to an internet sales site so that the user can download the coffee roasting information at any time through the QR code (4-1). do.

The QR code 4-1 generated through the QR code generation unit 4-2 is recognized through the QR code recognition unit 4-3 included in the smartphone application 4.

When the user directly roasts coffee beans, data such as the type, blending ratio, and roasting degree of roasted beans can be directly input through the user input unit 4-4 without the QR code 4-1 recognition process.

When a user inputs information on roasted beans and the taste of coffee he wants to drink (the degree of acidity, flavor, density, aftertaste, etc.), the operation unit 4-5 uses the input information into a reference matching table algorithm. Substitute in to determine the optimum blending ratio of beans, grinding degree of beans, hot water temperature, extraction pressure and extraction amount.

3 to 10 are reference diagrams related to a method of using the smart phone application 4 included in the semi-automatic coffee machine system 100 customized for a user according to an embodiment of the present invention.

3, a smartphone application 4 included in the semi-automatic coffee machine system 100 customized for a user according to an embodiment of the present invention includes 1) a roasting information input part, 2) an automatic coffee taste selection part, 3) It includes a manual selection of coffee flavors, 4) a menu part, and 5) a community party.

4 and 5, the roasting information input part according to an embodiment of the present invention includes a roasting information scan part, a manual roasting information input part, and a multi-hopper bean selection part through the QR code recognition unit 4-3. , Including raw water selection completed part and my roasting bin part.

Referring to FIG. 5, the roasting information scan part recognizes the QR code 4-1 through the QR code recognition unit 4-3, and sends the roasting information to one of the multi-hoppers 2-1. Enter in At this time, it is preferable that information about roasted beans in different states is input to each hopper.

Referring to FIG. 4, in the roasting information manual input part, the user directly inputs roasted bean information into one of the multi-hoppers 2-1. At this time, it is preferable that information about roasted beans in different states is input to each hopper.

Referring to FIG. 4, the multi-hopper bean selection part serves to designate a hopper from among the plurality of multi-hoppers 2-1 to which a user inputs roasting information. The user can select one or more hoppers and input the roasting information they want.

Referring to FIG. 4, the My Roasting Box part serves to store coffee bean information that the user has input so far, and select one bean information from among a plurality of stored bean information to one of the multi-hopper (2-1). Enter into the hopper.

Referring to FIG. 4, for the bean selection completed part, after all the bean information is inputted to each of the multi-hoppers (2-1), when clicking the bean selection completed part, the input bean information is transmitted to the semi-automatic coffee machine (1). do.

6 and 7, in the automatic coffee taste selection part according to an embodiment of the present invention, when a user directly inputs the acidity, flavor, density, and tail of the extracted coffee, the type of coffee beans and the coffee beans are The degree of grinding, the temperature of the hot water, the pressure of the hot water, and the amount of extracted coffee are adjusted to extract coffee that suits the user's taste.

Here, the type of beans, the degree of grinding of the beans, the temperature of the hot water, the pressure of the hot water, and the amount of the extracted coffee are determined through a calculation process of a reference matching table algorithm included in the control unit 70.

Referring to FIG. 8, in the manual coffee taste selection part according to an embodiment of the present invention, the user can select the type of beans, the blending ratio of beans, the degree of grinding of the beans, the temperature of hot water, the pressure of the hot water, and the amount of extracted coffee. Make sure to brew your own coffee.

Referring to FIG. 9, a menu part according to an embodiment of the present invention stores a recipe for extracting coffee beans stored in the process of using a coffee machine by a user, and extracts coffee by touching the stored recipe once.

Referring to FIG. 10, the community part according to an embodiment of the present invention performs a role of uploading a recipe for extracting coffee beans each user of the semi-automatic coffee machine 1 uses, and distributing it for free or for a fee.

Here, the user who has downloaded the coffee beans extraction recipe can improve the coffee beans extraction recipe by adding his own know-how to the downloaded information, and share it again in the community part.

Semi-automatic coffee machine 1 Coffee bean grinder 2
Multi Hopper 2-1 Smartphone 3
Application 4 QR Code 4-1
QR code generation unit 4-2 QR code recognition unit 4-3
User input section 4-4 Operation section 4-5
Housing 10 Hot water boiler 20
Supply pipe 21 1st heater 22
Water tank 23 Porta filter 30
Spout 31 Hot water supply pipe 40
Pressure regulator 41 Group head 50
2nd heater 51 sensor part 60
Control unit 70 Semi-automatic coffee machine system customized for users 100

Claims (10)

housing,
A hot water boiler that is provided in the housing and is connected to a water tank and a supply pipe to supply water used when extracting coffee, and generates hot water by heating the water supplied from the water tank with a first heater provided therein,
A porta filter that accommodates the ground coffee powder and has an extraction port through which the extracted coffee is discharged,
A group head in which the porta filter is detachable and connected to the hot water boiler and a hot water supply pipe, and supplies hot water supplied through the hot water supply pipe to the porta filter to extract coffee;
A second heater installed inside the group head and reheating hot water supplied to the porta filter;
A pressure control unit provided on the hot water supply pipe and adjusting a pressing pressure of hot water supplied to the group head according to a user's setting;
A sensor unit that measures the temperature, pressure and amount of extracted coffee of the hot water,
The pressure control unit, the first heater, the second heater, and a control unit for controlling the amount of extracted coffee and
A coffee bean grinder connected for information exchange with a semi-automatic coffee machine and having a plurality of hoppers for storing roasted beans,
The control unit adjusts the pressure of the pressure control unit and the temperature of the first heater and the second heater based on the input bean information,
The bean information is coffee bean roasting information,
The bean roasting information is input through QR code recognition, the QR code is printed on the bean packaging,
The control unit is controlled by the manipulation of the smart phone application in connection with the smart phone application (App),
The smartphone application operates including the following steps: (a) executing an application for executing a user-customized semi-automatic coffee machine; (b) recognizing a QR code including coffee roasting information using a smartphone; And (c) setting a taste of coffee to be extracted,
The smartphone application includes a QR code generation unit, a QR code recognition unit, a user input unit and an operation unit,
In the step of setting the taste of the coffee, acidity, flavor, body, and aftertaste are set,
The coffee bean roasting information is selected from the group including bean type, bean origin, bean roasting degree, bean moisture content, and bean hardness,
The pressure control unit includes a bypass valve for selectively draining according to a user's setting and controlling a pressing pressure of hot water supplied to the group head,
The control unit controls the pressure of the pressure control unit and the temperature of the first heater and the second heater by substituting the inputted bean information into a reference matching table algorithm.
User customized semi-automatic coffee machine.
delete delete delete delete delete delete delete delete delete

Images