WO2017209443A1 - Dutch coffee extractor and exclusive coffee container for exclusive use therefor - Google Patents

Abstract

The present invention relates to a Dutch coffee extractor allowing the sanitary and simultaneous extraction of Dutch coffee, the Dutch coffee extractor comprising: an input unit for setting a frequency and an operation time; a detection unit for measuring the weight of a container; a control unit for determining the intensity of vibration after receiving the set data by the input unit and the measured weight by the detection unit; a conversion unit for converting commercial alternating current power into a voltage corresponding to the frequency and the intensity of vibration which have been received from the control unit; and an operation unit for generating vertical vibration by means of the converted alternating current power by the conversion unit.

Description

Dutch coffee extractor and dedicated coffee container

The present invention relates to a coffee extractor that allows coffee to be cooled down with cold or room temperature water, and more particularly, a Dutch coffee extractor and a dedicated coffee used to simultaneously extract a large amount of Dutch coffee in a short time. It's about courage.

Dutch coffee (Cold blew) is a kind of cold blew (Cold blew), which is a Japanese name, but has been used as a common term for a coffee that has been soaked in cold water in recent years.

The Dutch coffee is extracted by dropping a drop of cold water drop by drop into the coffee powder UT milled coffee beans, or by pouring the coffee powder in a container and pour cold water to aging at room temperature at room temperature and then filter out the residue.

In this way, the extracted Dutch coffee has a very high concentration, and can be drunk according to taste, such as adding water, ice, syrup, milk, or drinking with hot coffee, and has a unique and luxurious taste. Ports and tastes do not deteriorate over long periods of time, and their use has spread rapidly since 2010.

However, unlike ordinary coffee brewed with hot water, it takes a lot of time to extract the coffee liquid because it is brewed with cold water, and water that is placed for a long time without sterilization such as boiling can easily breed bacteria and cause hygiene problems. do.

The present applicant has proposed (not disclosed) a method that can reduce the extraction time of coffee using sound waves.

The extraction method of the Dutch coffee using the sound waves is that the sound wave vibration is generated using the sound wave generation principle of the speaker, and coffee powder and water are more easily mixed using the sound wave vibration. However, the generation of such sound waves requires an amplification device such as an amplifier, which inevitably increases the size of the extraction device. In addition, the amplification device consumes a lot of energy and dissipates heat. There is a problem with economics. In addition, there is a limitation in applying an automatic control method because an analog method can only be used to prevent noise in amplifying sound waves.

The present invention is to solve the problems of the prior art, it is an object of the present invention to provide a Dutch coffee extractor that can economically extract a large amount of Dutch coffee in a short time.

In addition, the present invention can precisely control the frequency and the strength of vibration in accordance with the amount of coffee powder and the concentration of the required coffee liquid, and detects abnormal conditions such as vibration abnormality to automatically stop the operation safe and efficient It is also an object to provide a Dutch coffee extractor in which coffee is extracted and the durability of the device is increased.

In addition, the present invention has another object to provide a dedicated coffee container that can be used exclusively for the Dutch coffee extractor.

According to the most preferred embodiment of the present invention for solving the above problems, an input unit for setting the frequency and operation time; A sensing unit for measuring the weight of the container; A control unit which receives the setting contents of the input unit and the measured weight of the sensing unit and determines the strength of vibration; A converter for converting commercial AC power into a voltage corresponding to the frequency and the intensity of vibration received from the controller; It is provided with a Dutch coffee extractor comprising an operating unit for generating up and down vibration by the AC power converted by the conversion unit. In this case, the sensing unit may further include a function of detecting whether the operating unit is abnormally vibrated and leaking water so that the control unit stops the operation of the operating unit.

According to another embodiment of the present invention, the operating unit, a vibration unit for generating up and down vibration, a housing for forming a space at the bottom while fixing the vibration portion, a bottom plate for fixing the housing, and the vertical vibration of the vibration unit It is made of a vibration rod for guiding; The vibrating unit is a Dutch coffee extractor, characterized in that the coil is made up of a bobbin, a permanent magnet positioned in the bobbin, and a vibrating plate vibrating up and down in a state in which the container holding plate is mounted on an upper portion of the permanent magnet. Is provided. At this time, the upper end of the vibration rod is fixed to the vibration plate and the lower end is accommodated in the space of the lower part of the housing, a first spring is inserted between the vibration plate and the support portion is inserted into the upper end of the vibration rod, the lower end of the vibration rod is inserted in the space below the housing By allowing the second spring to be installed, it is possible to smoothly control the vibration of the vibrator.

According to still another embodiment of the present invention, there is provided a dedicated container used for the Dutch coffee extractor, comprising: a first accommodating part having a first screw fastening part at an opening side, filled with coffee powder and water; A second accommodating part having a second screw fastening part provided at the opening side to take out the liquid liquor from the first accommodating part; 3rd and 4th screw fastening parts which are positioned between said 1st accommodating part and a 2nd accommodating part, respectively fastened to a 1st, 2nd screw fastening part, are integrated into a 1st accommodating part and a 2nd accommodating part, and A dedicated coffee container is provided between the fastening part and the fourth screw fastening part. In this case, a funnel may be further installed in the filter part toward the second accommodation part of both surfaces of the filter.

The present invention can precisely control the frequency and vibration intensity required by using the inverter function, it is possible to quickly extract a large amount of Dutch coffee of various tastes and flavors with a small amount of energy, and precise automatic control and remote control This makes the use of extraction equipment very simple.

In addition, the present invention can simplify the structure to minimize the size, and also to adjust the strength of vibration by frequency according to the weight and required concentration of the coffee powder, etc. to be extracted, noise caused by the departure or shaking of the container This does not occur, and when abnormal vibrations or leaks are detected, the operation of the extractor is automatically stopped, thereby increasing safety and durability of the device.

Figure 1 shows the operating system of the Dutch coffee extractor of the present invention.

2 is a general perspective view of the Dutch coffee extractor according to an embodiment of the present invention.

3 is an overall perspective view and a cross-sectional view of the operating portion of the Dutch coffee extractor.

4 is an exploded perspective view of the operation part.

5 is a cross-sectional view illustrating the operation relationship of the vibration unit of the operation unit.

Figure 6 is a perspective view showing the whole coffee container of the present invention as a whole.

7 is a perspective view of a state in which the first accommodating part is separated from the dedicated coffee container.

8 is a perspective view of a state in which the second accommodating part is separated from the dedicated coffee container.

9 is a cross-sectional view showing a process of extracting a Dutch coffee according to the present invention.

Dutch coffee extractor according to the present invention, the input unit for setting the frequency and operation time; A sensing unit for measuring the weight of the container; A control unit which receives the setting contents of the input unit and the measured weight of the sensing unit and determines the strength of vibration; A converter for converting commercial AC power into a voltage corresponding to the frequency and the intensity of vibration received from the controller; And an operating unit generating vertical vibration by the AC power converted by the converting unit.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in detail. However, in describing the present invention, when the technical concept of the present invention is obscured or obscured by describing the known configuration in detail, the description of the known configuration will be omitted.

Figure 1 shows the operating system of the Dutch coffee extractor, Figure 2 shows the appearance of the Dutch coffee extractor according to an embodiment of the present invention.

Dutch coffee extractor of the present invention by maximizing the contact activity of the coffee powder and water using the vibration to extract the coffee liquid in a short time, while the coffee liquid of various required flavors and aromas can be extracted It is possible to finely adjust the degree, as shown in Figure 1 input unit 100 for setting the frequency and operating time, the sensing unit 400 for measuring the weight of the container containing the coffee and water, and the vibration of The control unit 200 for determining the intensity, the conversion unit 300 for changing the frequency and voltage, and the operation unit 500 for generating up and down vibration.

The extraction concentration of the coffee liquor depends on the state of vibration. For example, when the number of vibrations per unit time is high, the concentration of coffee powder and water is increased as the contact activity between coffee powder and water increases. In addition, the particle size of the coffee powder and the amount of time to brew also affect the extraction concentration of the coffee.

Accordingly, the input unit 100 sets the required frequency and sets the operation time according to the type and the degree of grinding of the coffee powder, so that the coffee liquid of the planned concentration can be extracted. At this time, the frequency input to the input unit 100 is preferably set within the range of 5Hz to 35Hz.

On the other hand, the object has an inherent frequency related to the magnitude of the mass, when the external force having the same frequency is applied, the vibration of the object gradually increases due to the resonance phenomenon. Similarly, the container containing the coffee powder and water may be shaken or separated from the container holding plate 600 while resonating with the frequency set according to the weight thereof.

Therefore, the present invention is to automatically control the maximum intensity of the vibration for each frequency according to the weight, to prevent the departure of the container and to prevent the generation of noise by shaking. That is, the sensing unit 400 measures the weight of a container containing coffee and water using the load cell 411 and transmits the weight to the control unit 200, and the control unit 200 sets the frequency and the sensing unit (set by the input unit 100). Comparing and reviewing the weight received from the 400) to calculate the maximum strength of vibration that can be set at the weight.

Table 1 below shows an example of setting the intensity of vibration for each frequency on the basis of 15kg.

weight	frequency	Strength of vibration
15KG	5 Hz	99
	10 Hz	80
	15 Hz	60
	20 Hz	55
	25 Hz	40
	30 Hz	30
	35 Hz	25

In addition, the detection unit 400 may further include a function of detecting whether or not the abnormal vibration of the operation unit 500 and the leakage. For example, when a vibration exceeding the intensity of the vibration set as described above is sensed, or a container containing coffee powder and water is inclined or falls due to an incorrect use of a broken container or a wrong setting or malfunction of the container, The 400 detects this and causes the control unit 200 to stop the operation of the operation unit 500 to prevent the occurrence of an accident as well as to protect the device and to prevent unnecessary waste of materials and energy.

The converter 300 converts the applied commercial AC power into a voltage corresponding to the frequency and the intensity of vibration received from the controller 200, and the converter 310 converts the commercial AC power into DC power. The inverter unit 320 converts the converted DC power into AC power again and changes the frequency and voltage.

The converter unit 310 is composed of a three-phase full-wave rectifying circuit and a smoothing circuit, and rectifies and converts commercial AC power into a DC power source to smooth through a smoothing circuit to obtain a DC power source with less pulsation.

In addition, the inverter unit 320 converts the DC power converted by the converter unit 310 into AC power again, and the frequency set by the input unit 100 and the control unit 200 through switching of the semiconductor element, and the sensing unit 400. ) And a voltage corresponding to the strength of vibration set by the controller 200.

3 illustrates the operating part 500 generating vibration by the AC power applied through the conversion part 300 as a whole, and FIG. 4 illustrates a state in which the operating part 500 is disassembled. The operation of the vibration unit 510 of the configuration of the operation unit 500 will be described.

3 and 4, the operating unit 500 of the present invention, the vibration unit 510 for generating up and down vibration, the housing 520 is fixed to the vibration unit 510, and the housing ( 520 is fixed to the bottom plate 530, and the vibrating rod 540 for guiding the up and down vibration of the vibrating unit 510.

The vibrator 510 includes a bobbin 511 in which a coil 511a is wound, a permanent magnet 512 positioned in the bobbin 511, and a diaphragm 514 in which a container accommodation plate 600 is mounted. .

The bobbin 511 on which the coil 511a is wound generates an alternating magnetic field in accordance with the current direction of the alternating current applied thereto. As a result, repulsive force and attractive force are generated between the permanent magnet 512 and vibrates. In this case, as shown in FIGS. 3 and 4, the permanent magnet 512 may be vibrated in a state where the bobbin 511 is fixed to the housing 520, and although not shown, the bobbin 511 may be fixed in the state where the permanent magnet 512 is fixed. ) Can also be vibrated. However, it will be described here as a structure in which the permanent magnet 512 vibrates like the former for convenience of description.

The vibrating rod 540 is installed so that the upper end is fixed to the diaphragm 514, and the lower end is accommodated in the space S formed at the lower portion of the housing 520.

Specifically, the housing 520 is bent at each side of the support horizontal plate 521 provided with the ventilation hole 521a, and the support horizontal plate 521, the space (S) in the lower portion of the support horizontal plate 521 And a support vertical plate 522 for fixing the housing 520 to the bottom plate 530 while forming a), and a central processing unit such as a control unit 200 may be placed below the support horizontal plate 521. The space S is formed, and the vibration bar 540 which vibrates up and down together with the diaphragm 514 has a lower space S through a bushing 543 having a lower end thereof installed on the support horizontal plate 521. The oscillating plate 514 is guided so as to vibrate only up and down without oscillating from side to side while haunting.

Fixing of the vibration rod 540 to the vibration plate 514 is preferably made of a screw fastening method, such that the screw inserting groove or tool fitting surface 540a is formed on the outer surface of the vibration bar 540 to facilitate the screwing operation. Can be.

In addition, the vibration bar 540 is provided with elastic means so that the vibration of the vibration plate 514 is made smoothly without impact at the upper and lower switching points. The elastic means may be installed only between the diaphragm 514 and the support horizontal plate 521, but preferably, the upper end of the vibrating rod 540 positioned between the diaphragm 514 and the housing 520 may have a first spring. 541 is installed, and a second spring 542 is installed at the lower end of the vibrating rod 540 located in the lower space S of the housing 520, so that the first spring 541 is impacted against the lower turning point of the vibration. And the second springs 542 organically act on each other to mitigate the impact on the upper turning point of the vibrations so that the vibrations can be made smoother and more efficiently. The lower end of the second spring 542 is fixed to the lower end of the vibration rod 540 through the washer 544 and the fixing nut 555.

* Vibration plate 514 is a vertical vibration is made by the permanent magnet 512 is located on the upper bar, when the vibration plate 514 is made of a magnetic material of the magnetic material is magnetized by the permanent magnet 512 has a magnetic Foreign objects may be attached. Therefore, an anti-magnetization plate 513 may be further installed between the permanent magnet 512 and the diaphragm 514 to prevent the diaphragm 514 from being magnetized by the permanent magnet 512.

Along with this, a plurality of load cells 411 for measuring the weight of a container containing coffee powder and water and a hydraulic plate 412 for transmitting a load are placed on the upper surface of the diaphragm 514, and the container accommodating plate 600 is provided. The load cell 411 and the hydraulic plate 412 are disposed on the upper portion of the diaphragm 514 to vibrate with the diaphragm 514.

Therefore, as described above, the weight measured by the load cell 411 is to set the intensity of the maximum vibration for a given frequency by the calculation of the control unit 200, such that problems such as the container springs up or falls during the vibration process Does not occur.

The container accommodating plate 600 may further include a receiving groove 610 to which the container is inserted and fixed.

The bottom plate 530 is fixed to the housing 520 to provide a space (S) in which a central processing unit such as the control unit 200 is installed together with the vibrator 510, and a vibration detection sensor 421 on the upper surface thereof. ) And the leak detection plate 431 may be further installed.

The vibration sensor 421 and the leak detection plate 431, as described above with respect to the function of the detection unit 400, detects the abnormality of the vibration and whether the leakage to the bottom plate 530, abnormal vibration When the leak is detected, the vibration of the vibrator 510 is stopped through the control unit 200, thereby preventing accidents from occurring and improving durability of the apparatus.

In addition, a support leg 531 may be further installed at the bottom of the bottom plate 530, and a shock absorbing member 531a may be provided at the bottom of the support leg 531 to mitigate an impact caused by the vibration of the vibration unit 510. Is provided.

In addition, a maintenance hole 530a may be further provided below the vibration plate 540 of the bottom plate 530. The maintenance hole 530a enables maintenance by replacing or fixing the second spring 542 of the vibration bar 540 to the vibration bar 540 without disassembling the housing 520 from the bottom plate 530. To facilitate.

As described above with respect to the Dutch coffee extractor according to the present invention, Figures 6 to 8 shows a dedicated coffee container 700 used exclusively for the Dutch coffee extractor, Figure 6 is a dedicated coffee container 700 7 shows a state in which the first accommodating part 710 is filled with coffee powder and water, and FIG. 8 is a state in which the second accommodating part 720 receiving the concerned coffee liquid is separated. Will be shown.

The dedicated coffee container 700 of the present invention, as shown in Figures 6 to 8 is composed of a first receiving portion 710 and the second receiving portion 720 and the filter portion 730 located between them.

The first accommodating part 710 filled with coffee powder and water is provided with a first screw fastening part 711 at the opening side, and is screwed into a third screw fastening part 731 provided in the filter part 730. The second screw fastening part 721 is provided at the opening side of the second accommodating part 720 for receiving the coffee liquid, and the second screw fastening part is also provided in the filter part 730. Screwed to 732.

As described above, in the filter unit 730 for integrally coupling the first and second accommodating parts 710 and 720, a filter 733 for filtering the sludge of the remaining coffee powder is washed out by the third screw tightening part 731 and the fourth screw. It is further installed between the fastening portion 732. Therefore, the coffee liquid concerned in the first accommodating part 710 is contained in the second accommodating part 720 through the filter 733. In addition, a funnel 734 for allowing the coffee liquid to efficiently move to the second accommodating part 720 may be further installed at the filter part 730 toward the second accommodating part 720 of both sides of the filter 733. have.

9 is a view illustrating a process of extracting Dutch coffee using the Dutch coffee extractor and the dedicated coffee container 700 according to the present invention. Referring to this, the extraction process of the Dutch coffee will be described as follows.

First, the first accommodating part 710 filled with coffee and water and the second accommodating part 720 having an empty interior are integrally combined with the filter part 730, and then, as shown in FIG. 9 (a). The dedicated coffee container 700 is inserted into and fixed to the receiving groove 610 provided in the container receiving plate 600 of the Dutch coffee extractor so that the first receiving part 710 is placed below.

* Select the frequency according to the concentration of the coffee liquid to be extracted, and input or subtract the amount of time required for the standard operating time corresponding to the state of the coffee powder, the operating unit 500 by turning the operation switch (ON) As the coffee powder and water filled in the first accommodating part 710 are vibrated to mix, the coffee liquid comes out of the coffee powder.

* When the set time has elapsed, the operation of the operation unit 500 is stopped. At this time, as shown in (b) of FIG. 9, when the dedicated coffee container 700 is turned upside down so that the second accommodation unit 720 is placed below As the coffee sludge is caught by the filter 733, the concerned coffee liquid is contained in the second accommodating part 720 along the funnel 734.

Reference numeral 514a is a fastening nut for fastening the vibration bar 540 to the diaphragm 514 by screwing.

The present invention has been described in detail above with reference to specific embodiments, but the above embodiments are merely examples for easy understanding of the present invention, so that those skilled in the art have the scope of the technical idea of the present invention. It will be apparent that various modifications can be made within the scope of the invention. Therefore, such modifications will be described within the scope of the present invention as described in the claims.

The present invention relates to a Dutch coffee extractor that can extract the Dutch coffee hygienically at the same time can be said to be an industrially applicable invention.

Claims (10)

1. An input unit 100 for setting a frequency and an operation time; A sensing unit 400 measuring the weight of the container; A control unit 200 which receives the setting contents of the input unit 100 and the measured weight of the sensing unit 400 to determine the intensity of vibration; A converter 300 converting the commercial AC power into a voltage corresponding to the frequency and the intensity of vibration received from the controller 200; Actuator 500 for generating a vertical vibration by the AC power converted by the conversion unit 300;

   The operation unit 500 is a vibration unit 510 for generating a vertical vibration, a housing 520 for forming a space (S) at the bottom while fixing the vibration unit 510, and the housing 520 fixed Consisting of a bottom plate 530 and a vibration bar 540 for guiding up and down vibrations of the vibration part 510; The vibrator 510 may include a bobbin 511 in which a coil 511a is wound, a permanent magnet 512 located in the bobbin 511, and a container accommodating plate 600 located above the permanent magnet 512. Dutch coffee extractor, characterized in that consisting of a diaphragm 514 vibrating up and down in the state.
2. The method of claim 1, wherein the detection unit 400 further includes a function to detect the abnormal vibration of the operating unit 500 and whether the leakage to the control unit 200 to stop the operation of the operation unit 500. Dutch coffee extractor, characterized in that.
3. The method of claim 1, wherein the conversion unit 300 is a converter unit 310 for converting commercial AC power to DC power, and the converted DC power back to an AC power having a frequency and voltage determined by the controller 200. Dutch coffee extractor, characterized in that consisting of the inverter unit 320 to convert.
4. According to claim 1, wherein the upper end of the vibration rod 540 is fixedly installed in the diaphragm 514 and the lower end is accommodated in the space (S) of the lower portion of the housing 520, between the diaphragm 514 and the support portion (the vibration rod ( The first spring 541 is inserted into the upper end of the 540, the second spring 542 is inserted into the lower end of the vibration rod 540 in the space (S) of the lower housing 520 is installed. Dutch coffee extractor.
5. The Dutch coffee extractor of claim 1, wherein an anti-magnetization plate (513) is further provided between the permanent magnet (512) and the diaphragm (514).
6. The Dutch coffee extractor according to claim 1, wherein a load cell (411) is further provided on an upper surface of the diaphragm (514).
7. The Dutch coffee extractor of claim 1, further comprising a vibration sensor (421) and a leak detection plate (431) on the upper surface of the bottom plate (530).
8. The lower surface of the bottom plate 530 is further provided with a support leg 531, the lower end of the support leg 531 Dutch coffee extractor, characterized in that provided with a buffer member (531a) .
9. A first container for use in the Dutch coffee extractor according to any one of claims 1 to 8, wherein the first screw fastening portion 711 is provided on the opening side as filled with coffee powder and water. 710; A second accommodating part 720 having a second screw fastening part 721 at an opening side to receive the coffee liquid emanating from the first accommodating part 710; Located between the first accommodating part 710 and the second accommodating part 720, third and fourth screw fastening parts 731 and 732 which are fastened to the first and second screw fastening parts 711 and 721, respectively, are provided. The filter unit 730 is formed by integrating the accommodating part 710 and the second accommodating part 720, and a filter 733 is provided between the third screw fastening part 731 and the fourth screw fastening part 732. Dedicated coffee container, characterized in that consisting of.
10. 10. The dedicated coffee container according to claim 9, wherein the filter part (730) is further provided with a funnel (734) toward the second receiving part (720) of both surfaces of the filter (733).

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