KR102221851B1 - Coffee machine with enhanced flavour) - Google Patents

Abstract

The present invention relates to a coffee machine, and more particularly, to a coffee machine with improved flavor by maximizing extraction of active ingredients from coffee beans. Therefore, the present invention provides the coffee machine with improved flavor comprising: a main body part composed of a case and a lid; an extraction unit installed inside the main body and includes an extraction container in which coffee bean powder and water are accommodated, an external vibrator attached to the outside the extraction container to generate vibration, and an internal vibrator installed in a radial direction on a rod extending from the lid to the inside of the extraction container; a coffee receiving unit comprising a tank for accommodating a coffee solution extracted by the extraction unit, a filter installed on the upper part of the tank to filter the extracted coffee extract, and a heating means for heating the coffee solution accommodated in the tank; a discharge unit for discharging the coffee solution accommodated in the coffee receiving unit to the outside; and a control unit for controlling the internal vibrator and the external vibrator of the extraction unit.

Description

Coffee machine with improved flavor {COFFEE MACHINE WITH ENHANCED FLAVOUR)}

The present invention relates to a coffee machine, and more particularly, to a coffee machine with improved flavor by maximizing the extraction of active ingredients from beans.

In general, the manufacturing process of coffee consists of the steps of selecting green beans, roasting (roasting), grinding, and extracting coffee (drip, brewing). The final coffee flavor is determined by the type of beans, roasting conditions, grinding degree, coffee extraction conditions, and the time required for the entire process. As the coffee beans expand by the gas generated during the roasting process, the microstructure is deformed, resulting in improved water permeability (ie, extraction characteristics). In addition, during the heat treatment process of coffee beans, various substances in the green bean cells are converted into volatile flavor substances that determine the unique flavor of coffee.

In addition, the coffee beans undergo a grinding process of finely pulverizing after roasting so that the unique flavor of coffee can be extracted evenly. At this time, if the pulverization size is larger than the appropriate particles, the coffee components are not sufficiently extracted, and underextraction occurs, and when pulverized small, excessive extraction occurs in which unnecessary components of coffee are also extracted. This is also related to the temperature and extraction time of the supplied water.

The coffee brewing method can be largely divided into transmission type and immersion type, and according to each extraction method, coffee has different taste and aroma, and even in the same method, the taste and aroma will be different if different instruments are used.

The transmission type is a method of extracting while water passes through the ground coffee, and there are a drip type using gravity and a pressurizing type using forced pressure.

The drip type is a method in which ground coffee is placed on a filter mounted on a dripper, and the coffee is poured through water. According to this, the taste of coffee becomes neat because it filters out the fat components in the beans, and there is an advantage of being able to produce various flavors because the taste varies depending on the temperature of the water and the method of pouring water. In addition, there is a method of extracting coffee over a long period of time by passing cold water or room temperature water slowly (Dutch method).In particular, coffee extracted using cold water is called cold blue (Dutch coffee), and its characteristic soft taste and aroma Has (see Fig. 1A).

The pressurized type makes coffee by passing high-pressure water through the ground coffee, either mechanically or manually, and can extract the strongest coffee through a kind of forced extraction method. Espresso machines are widely known as a pressurized extraction device.

The immersion type is a method in which the coffee is extracted while being immersed in water for a certain period of time, and since the ingredients are naturally extracted from the coffee, it is possible to obtain coffee with a relatively consistent taste and aroma.

After extraction, there are a method of sinking the ground coffee residue by gravity (Turkish Coffee), and a method of filtering the ground coffee residue after extraction using a French Press.

After roasting and grinding, various volatile flavors, antioxidants, and caffeine that exist in the ground coffee are ultimately in a state that can be consumed and enjoyed in the extraction stage.

Coffee extraction by conventional methods such as transmission or immersion has a lot of room for improvement, such as poor extraction efficiency and excessive extraction time. In particular, it is possible to improve the rich flavor of coffee by increasing the extraction of active ingredients and suppressing the extraction of negative ingredients.

In this way, in order to maximize the yield in the extraction step and shorten the processing time, a coffee extraction device having an ultrasonic function is disclosed in Korean Patent Registration No. 10-1630262 (hereinafter referred to as'prior art document 1'). According to Prior Art Document 1, when the hot pressurized water applied with ultrasonic waves is brought into contact with ground coffee, the coffee extraction device generates cavitation in the cells by a pulse of pressure, and accordingly, the cell wall of the beans collapses, resulting in volatile flavor substances and antioxidants, Active ingredients in coffee such as caffeine can be efficiently extracted.

However, the coffee extraction apparatus disclosed in Prior Art Document 1 as described above has a negative effect on flavor and transparency as the cell walls are excessively destroyed by ultrasonic waves, resulting in increased turbidity and taste of coffee. In addition, there is a problem in that the cost of the product is increased because an ultrasonic device, which is a complex equipment, must be added.

1. Domestic Patent Registration No. 10-1630262 (registered on June 8, 2016)

Accordingly, an object of the present invention is to provide a coffee machine with improved flavor by maximizing the extraction of active ingredients from beans.

The present invention comprises a body portion consisting of a case and a lid; It is installed on the inside of the main body and is installed in a radial direction on an extraction container in which coffee beans and water are accommodated, an external vibrator that is attached to the outside of the extraction container to generate vibration, and a rod extending from the lid to the inside of the extraction container An extraction unit made of an internal vibrator; A coffee container comprising a tank for accommodating the coffee solution extracted by the extraction unit, a filter installed on the top of the tank to filter the extracted coffee extract, and a heating means for heating the coffee solution accommodated in the tank; A discharge unit for discharging the coffee solution accommodated in the coffee receiving unit to the outside; And a control unit for controlling an internal vibrator and an external vibrator of the extraction unit.

Here, it is preferable that the extraction unit is installed so that the external vibrators are attached to each other at positions facing each other around the extraction container, and the control unit controls the external vibrators installed to face each other to be operated alternately.

In addition, it is preferable that the extraction unit controls the internal vibrators to be installed in a direction opposite to each other with respect to the extraction container, and the control unit to alternately operate the internal vibrators installed in the opposite direction to each other.

In addition, it is preferable that the extraction unit is provided with a plurality of internal vibrators and external vibrators, and the control unit is provided so that the internal and external vibrators operate at random, respectively.

As described above, in the coffee machine according to the present invention, since an internal vibrator is installed inside the extraction container, a wave is generated in the center, so that the water collides with the coffee bean powder particles with greater energy, so that the active ingredient can be extracted more quickly.

In addition, since the coffee machine according to the present invention operates by alternating the external vibrators, waves overlap according to the vibration of water to increase the wave height, so that the collision energy between the coffee bean powder particles and water increases, so that the active ingredient can be extracted more quickly.

In addition, since the coffee machine according to the present invention operates by alternating the internal vibrator, the wave height generated by the external vibrator and the wave height generated by the internal vibrator collide to increase the collision energy between the coffee bean powder particles and water, thereby increasing the effective ingredient more quickly Can be extracted.

In addition, since the coffee machine according to the present invention controls the internal vibrator and the external vibrator to operate randomly, turbulence occurs in the flow of water, and as the collision energy between the coffee bean powder particles and water increases, the active ingredient can be extracted more quickly. .

1 is an exterior perspective view showing a coffee machine according to an embodiment of the present invention.
2 is a cross-sectional view showing the interior of a coffee machine according to an embodiment of the present invention.

Hereinafter, an embodiment of a coffee machine according to the present invention will be described with reference to the accompanying drawings.

1 is an exterior perspective view showing a coffee machine according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the interior of a coffee machine according to an embodiment of the present invention.

As shown in FIGS. 1 and 2, the coffee machine 100 according to an embodiment of the present invention includes a body part 100 comprising a case 112 and a lid 114, and an inner side of the body part 100. It is installed in the extraction unit 120 for extracting the coffee solution from the coffee bean powder, the coffee receiving unit 130 receiving the coffee solution extracted in the extracting unit 120, and the coffee accommodated in the coffee receiving unit 130 It includes a discharge unit 140 for discharging the solution to the outside and a control unit 150 for controlling the extraction unit 120.

The body portion 110 is made of a case 112 and a lid 114, and the extraction portion 120, the coffee receiving portion 130, and the control unit 150 are installed inside the body portion 110.

In the case 112, a control panel 162 is disposed on the front side so that a user can select an option, and a discharge pipe 142 is formed under the control panel 162 for discharging the extracted coffee solution to the outside. In addition, a cup holder 112a is installed at the end of the discharge pipe so that the cup can be mounted. In addition, a power unit 162 is installed at an inner lower portion of the case 112 to supply power to a required location of the coffee machine 100 by applying power. In addition, a door 112b for carrying out the extraction container 122 of the extraction unit 120 to be described later is formed on the front surface of the case 112.

In addition, the lid 114 is rotatably installed on an upper surface of one side of the case 112 and a water inlet pipe 114a for introducing water into the main body 110 is formed. In this embodiment, it is provided to drop the coffee bean powder into the extracting unit 120 after rotating the lid 114, but it is of course possible to install a coffee bean powder supply pipe capable of supplying a separate bean powder if necessary.

The extraction unit 120 is installed on the inside of the main body 110 and is attached to an extraction container 122 in which coffee beans and water are accommodated, and an external vibrator 124 attached to the outside of the extraction container 122 to generate vibration. ) And an internal vibrator 126 installed in the radial direction on the rod 116 extending from the top of the lid 114 to the inside of the extraction container 122.

The extraction container 122 is fixedly installed on the inner upper part of the main body 110 and has a shape in which the cross-sectional area becomes narrower as it goes down. When the extraction container 122 is fixed to the case 110, a buffer material 123 is installed at the contact portion to prevent the vibration of the extraction container 122 from being transmitted to the case 112. In addition, a dropping pipe 122a through which the coffee solution extracted from the extraction container 122 falls by its own weight is formed in the lower portion of the extraction container 122, and a solenoid valve 122b is installed in the dropping pipe 122a. . Therefore, by turning on and off the solenoid valve 122b, it is possible to control the drop of the coffee solution extracted from the extraction container 122 downward.

The external vibrator 124 is attached to the outside of the extraction container 122 to generate vibration. The external vibrator 124 selects a coin-type vibration motor or a cylindrical vibration motor according to the location of the location and the required life. It is preferable that a plurality of the external vibrators 124 are formed, and are preferably installed so as to form an equal angle with each other. Here, the external vibrator 124 is commanded to operate alternately so that water can receive a large amount of energy under the control of the control unit 150. That is, when the external vibrator 124 operates to generate vibration, the wave propagates and when it reaches the inner surface of the extraction container 122 on the opposite side, the external vibrator 124 on the opposite side is operated to generate the amplitude of the wave. Control it so that it doubles.

The internal vibrator 126 is installed in a radial direction on a rod 116 extending from the lid 114 to the inside of the extraction container 122 to generate a blue wave in the water injected into the extraction container 122. . It is preferable that the internal vibrator 126 is installed in a radial direction conforming to each other on the rod 116. Here, the internal vibrators 126 are commanded to operate alternately with each other so that water can receive a large amount of energy under the control of the control unit 150. That is, when the wave generated by the external vibrator 124 propagates in the direction of the center of the extraction container 122 and reaches the center, the internal vibrator 126 is operated to control the amplitude of the wave to be doubled.

The coffee receiving unit 130 includes a tank 132 for receiving the coffee solution extracted by the extraction unit 120 and a filter 134 installed on the top of the tank 132 to filter the extracted coffee solution, and It consists of a heating means 136 for heating the coffee solution accommodated in the tank 132.

The tank 132 is a cylindrical container and is provided to receive the coffee solution extracted by the extraction unit 120. It is preferable that the tank 132 is made of a corrosive stainless material. In addition, a temperature sensor 132a for sensing the temperature is installed inside the tank 132. The tank 132 may be carried out through a door 112b installed in the front of the case 112 for cleaning.

The filter 134 is installed on the top of the tank 132 to filter the extracted coffee solution. The filter 134 is made of a metal mesh in this embodiment, but a filter mesh made of fused may be used if necessary. In addition, it goes without saying that both metal nets and fusions can be used if necessary.

The heating means 136 is provided to heat the coffee solution accommodated in the tank 132. In this embodiment, the heating means 136 is made of a coil, but it is of course possible to apply various heating means such as a heat pipe as needed.

The discharge unit 140 is provided to discharge the coffee solution accommodated in the coffee receiving unit 130 to the outside, and a discharge pipe 142 communicating with the tank 132 and opening and closing of opening or closing the discharge pipe 142 It consists of a valve 144. Here, the on-off valve 144 is preferably made of an electromagnetic valve that is opened and closed by the control panel 162.

The control unit 150 is provided to control the external vibrator 124 and the internal vibrator 126 of the extraction unit 120.

Here, it is preferable to control the external vibrators 124 by alternately controlling the external vibrators 124 opposing each other. That is, when the external vibrator 124 operates to generate vibration, the wave propagates and when it reaches the inner surface of the extraction container 122 on the opposite side, the external vibrator 124 on the opposite side is operated to generate the amplitude of the wave. Control it so that it doubles.

In addition, the control of the internal vibrators 126 is controlled so that the internal vibrators 126 installed in opposite directions are alternately operated. That is, when the wave generated by the external vibrator 124 propagates in the direction of the center of the extraction container 122 and reaches the center, the internal vibrator 126 is operated to control the amplitude of the wave to be doubled.

In addition, the external vibrator 124 and the internal vibrator 126 operate randomly with each other by a program to generate turbulence on the surface of the water, so that the impact energy of the coffee bean powder and the water increases. By doing so, the extraction of active ingredients can be promoted.

100: coffee machine
110: main body
112: case
112a: cup holder
112b: door
114: lid
116: rod
114a: water inlet pipe
120: extraction unit
122: extraction container
122a: drop tube
122b: solenoid valve
123: cushioning material
124: external vibrator
126: internal vibrator
130: coffee receiving part
132: tank
132a: temperature sensor
134: filter
136: heating means
140: discharge unit
142: discharge pipe
144: on/off valve
150: control unit
162: control panel
164: power unit

Claims (4)

A body portion made of a case and a lid;
An extraction container installed on the inside of the main body and accommodating the coffee bean powder and water, an external vibrator that is attached to the outside of the extraction container to face each other to generate vibration, and a rod extending from the lid to the inside of the extraction container are conformal to each other. An extraction unit consisting of an internal vibrator installed in a radial direction forming a;
A cushioning material installed at a contact portion where the extraction container is fixed to the case so that vibration is not transmitted to the case;
A solenoid valve installed in a drop pipe through which the coffee solution extracted from the extraction container falls below the extraction container to control the falling coffee solution;
A coffee receiving unit comprising a tank for receiving the coffee solution extracted by the extraction unit, a filter installed on the top of the tank to filter the extracted coffee solution, and a heating means for heating the coffee solution accommodated in the tank Wow;
A discharge unit for discharging the coffee solution accommodated in the coffee receiving unit to the outside; And
Including; a control unit for controlling the internal vibrator and the external vibrator of the extraction unit,
The control unit controls each of the external and internal vibrators installed to face each other to be operated alternately, and when the wave generated by the external vibrator propagates in the direction of the center of the extraction container and reaches the center, the internal vibrator is operated to increase the amplitude of the wave. A coffee machine with improved flavor, characterized in that it is controlled to double. delete delete The method according to claim 1,
The extraction unit is provided with a plurality of external and internal vibrators,
The control unit is a coffee machine with improved flavor, characterized in that it randomly operates each of the plurality of internal and external vibrators installed.

Images