CN114224173A

CN114224173A - Extraction device

Info

Publication number: CN114224173A
Application number: CN202111305189.1A
Authority: CN
Inventors: 郑子涛; 陈建明
Original assignee: Kin Yat Capital Ltd
Current assignee: Kin Yat Capital Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-03-25

Abstract

The invention belongs to the technical field of household appliances, and relates to an extraction device, which comprises: a water tank for storing liquid; the extraction container is provided with a closed cavity, the closed cavity is connected with the water tank through a first connecting pipe, and the closed cavity is provided with a throwing opening for throwing the extract; the vacuum pump is communicated with the closed cavity through a second connecting pipe and is used for decompressing the closed cavity; the refrigerator is arranged on at least one surface of the closed cavity and used for cooling the closed cavity; the controller is respectively connected with the refrigerator and the vacuum pump, controls the vacuum pump to pump air so that liquid in the water tank enters the closed cavity, and is also used for controlling the refrigerator to cool the liquid in the closed cavity to a preset temperature; and/or the controller is also used for controlling the vacuum pump to reduce the pressure in the closed cavity to the preset pressure after the liquid enters the closed cavity. Therefore, the extraction effect of the extract is improved, and the extraction time is shortened.

Description

Extraction device

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to an extraction device.

Background

Extraction is a common beverage making method in daily life. It has been widely used in social life. However, since the taste of the extract is generally extracted by a conventional extraction using a high-temperature liquid or a high-pressure liquid, the unpleasant taste of the extract generated at a high temperature is also dissolved in the liquid. Further, there is also a method of extracting a liquid at normal temperature or low temperature in combination with a long period of time, and although the effect of dissolving an unpleasant taste in the liquid can be avoided, there is a disadvantage that the extraction time is required to be long.

In view of the foregoing, there are drawbacks to existing extraction techniques and improvements are needed.

Disclosure of Invention

The embodiment of the invention aims to provide an extraction device to improve the extraction effect of an extract and reduce the extraction time.

In order to achieve the above object of the present invention, the present invention provides an extraction apparatus comprising:

a water tank for storing liquid;

the extraction container is provided with a closed cavity, the closed cavity is connected with the water tank through a first connecting pipe, and the closed cavity is provided with a throwing opening for throwing the extract;

the vacuum pump is communicated with the closed cavity through a second connecting pipe and is used for decompressing the closed cavity;

the refrigerator is arranged on at least one surface of the closed cavity and used for cooling the closed cavity;

the controller is respectively connected with the refrigerator and the vacuum pump, controls the vacuum pump to pump air so that liquid in the water tank enters the closed cavity, and is also used for controlling the refrigerator to cool the liquid in the closed cavity to a preset temperature; and/or

The controller is also used for controlling the vacuum pump to reduce the pressure in the closed cavity to a preset pressure after the liquid enters the closed cavity.

According to the extraction device, the extraction device further comprises:

the extract pump is arranged at the upper end of the extraction container, is connected with the controller, and is controlled by the controller to throw a preset amount of extract into the closed cavity through the throwing opening;

and the extraction liquid container is communicated with the closed cavity through a third connecting pipe and is used for containing the liquid which is subjected to cooling and/or pressure reduction in the closed cavity.

According to the extraction device, the refrigerator comprises:

the refrigerating sheet is arranged on at least one surface of the closed cavity;

and the fixed base is used for fixing the refrigeration sheet on at least one surface of the closed cavity.

According to the extraction device, the refrigeration sheet is arranged on the bottom surface or the side surface of the closed cavity; the refrigerating plate is a thermoelectric semiconductor refrigerating assembly.

According to the extraction device, the extraction device further comprises:

the temperature sensor is arranged in the closed cavity, detects the temperature in the closed cavity and sends the detected temperature value to the controller; and/or

The pressure sensor is arranged in the closed cavity, detects the pressure in the closed cavity and sends the detected pressure value to the controller;

when the temperature value reaches a preset temperature, the controller controls the refrigerator to stop working; and/or

And the controller controls the vacuum pump to stop working when the pressure value reaches a preset pressure.

According to the extraction device, a first switch valve is arranged on the first connecting pipe; a second switch valve is arranged on the second connecting pipe; a third switch valve is arranged on the third connecting pipe; and the first switch valve, the second switch valve and the third switch valve are respectively connected with the controller.

According to the extraction device, the extraction device further comprises:

the filter is arranged between the closed cavity and the extract pump and is positioned at the throwing opening; the filter includes filter bowl and filter screen, the filter screen set up in the filter bowl.

According to the extraction device, the upper part of the filter cover is detachably connected with the closed cavity, and a sealing ring is arranged between the filter cover and the closed cavity.

According to the extraction device, the extract is coffee or tea or fruit.

According to the extraction device, the preset temperature is lower than normal temperature, and the preset pressure is lower than a standard atmospheric pressure.

The invention sets the extraction device as the following: the device comprises a water tank, an extraction container, a vacuum pump, a refrigerator and a controller, wherein the controller is used for controlling the vacuum pump to pump air so that liquid in the water tank enters the closed cavity, and the controller is also used for controlling the refrigerator to cool the liquid in the closed cavity to a preset temperature; and the controller controls the vacuum pump to reduce the pressure in the closed cavity to a preset pressure after the liquid enters the closed cavity. Because the extraction is carried out under the conditions of low pressure and/or low temperature, the extraction time is reduced, the extraction effect on the extract is improved, and the extraction time is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of an extraction apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an extraction container of an extraction apparatus according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, in one embodiment of the invention, an extraction apparatus 100 is provided, comprising:

a water tank 10 for storing a liquid 300; the water tank 10 stores a liquid 300, the liquid 300 is used for extraction of the extract 400, and the liquid 300 may be drinking water including purified water and the like.

An extraction container 20 having a sealed cavity 21, the sealed cavity 21 being connected to the water tank 10 through a first connection pipe 22, and the sealed cavity 21 having a dispensing opening 211 for dispensing the extract 400; the closed chamber 21 is used for containing the extract 400 and the liquid 300, and the extract 400 is extracted in the closed chamber 21.

A vacuum pump 30, which is communicated with the sealed cavity 21 through a second connecting pipe 31, and is used for decompressing the sealed cavity 21; the vacuum pump 30 can adjust the pressure in the sealed chamber 21 to meet the extraction requirement, and can reduce the pressure in the sealed chamber 21 if air is extracted, and can pressurize the sealed chamber 21 if air is supplied.

The refrigerator 40 is arranged on at least one surface of the closed cavity 21 and used for cooling the closed cavity 21; the refrigerator 40 receives the control command of the controller 50 to cool the sealed cavity 21, so as to cool the liquid 300 in the sealed cavity 21.

The controller 50 is respectively connected with the refrigerator 40 and the vacuum pump 30, the controller 50 controls the vacuum pump 30 to pump air so that the liquid 300 in the water tank 10 enters the closed cavity 21, and the controller 50 is further used for controlling the refrigerator 40 to cool the liquid 300 in the closed cavity 21 to a preset temperature; and/or

The controller 50 is further configured to control the vacuum pump 30 to reduce the pressure in the sealed cavity 21 to a preset pressure after the liquid 300 enters the sealed cavity 21. The controller 50 is a control device of the whole extraction apparatus 100, is electrically connected with a plurality of components of the extraction apparatus 100, and implements control over the plurality of components of the extraction apparatus 100, and is preferably provided with a control button of the controller 50 on the front or top surface of the extraction apparatus 100.

In this embodiment, the controller 50 controls the vacuum pump 30 to pump the liquid 300 in the water tank 10 into the sealed cavity 21, so as to seal the sealed cavity 21; then the vacuum pump 40 is controlled to pump the air in the sealed cavity 21, and a negative pressure is formed in the sealed cavity 21, so that the liquid 300 in the water tank 10 enters the sealed cavity 21. Then, the extract 400 is put into the liquid 300, and the controller 50 controls the vacuum pump 30 to continuously operate to reduce the pressure in the sealed chamber 21 to a predetermined pressure, so that the extract 400 can be rapidly dissolved in the liquid 300 in a short time due to the pressure difference, and simultaneously controls the refrigerator 40 to reduce the temperature in the sealed chamber 21 to a predetermined temperature. In addition, the refrigerator 40 implements a freezing method such that the temperature of the liquid 300 is lowered while the extraction process is being performed. Under the condition of low temperature and low pressure, the extract 400 is extracted, so that the taste of the extract 400 is better, the time is shorter than that in the prior art, and the extraction effect and efficiency are improved. Thus, the defect that the taste of the extract 400 is usually extracted by using the high-temperature liquid 300, matching high pressure, or matching the normal-temperature or low-temperature liquid 300 for a long time in the prior art for taste extraction is overcome. Preferably, the extract 400 is coffee or tea or fruit. And the extract 400 is coffee, such as coffee powder or coffee beans. The preset temperature is lower than the normal temperature, the normal temperature is usually between 25 ℃ and 20 ℃, such as 25 ℃ and 20 ℃, and the preset pressure is lower than a standard atmospheric pressure. A standard atmospheric pressure refers to an atmospheric pressure, i.e., a gas pressure generated from the atmosphere in which people usually live. One standard atmospheric pressure is 101325Pa (Pa). The preset temperature and the preset pressure of different extracts 400 can be different according to the extraction requirement, for example, the preset temperature is 10 ℃, 5 ℃ and the like, and the preset pressure is 0.3Pa and the like.

Referring to fig. 2, in one embodiment of the present invention, the extraction apparatus 100 further comprises:

an extract pump 60 disposed at the upper end of the extraction container 20, connected to the controller 50, and controlled by the controller 50 to put a predetermined amount of the extract 400 into the closed chamber 21 through the putting opening 211;

the extraction liquid container 70 is communicated with the sealed cavity 21 through a third connecting pipe 71, and is used for containing the liquid 300 which is cooled and/or decompressed in the sealed cavity 21.

In this embodiment, the extract pump 60 is used for feeding the extract 400, and the extract pump 60 is preferably disposed at the upper end of the extraction container 20 and connected to the closed cavity 21. The extraction liquid container 70 contains the liquid 300 after the extraction of the extract 400 is completed. Optionally, the first connection pipe 22 is provided with a first switch valve 221; the second connecting pipe 31 is provided with a second switch valve 311; a third on-off valve 711 is arranged on the third connecting pipe 71; the first switching valve 221, the second switching valve 311, and the third switching valve 311 are connected to the controller 50, respectively. When the controller 50 controls the vacuum pump 30 to pump the liquid 300 in the water tank 10 into the sealed cavity 21, the controller 50 controls the first switch valve 221 and the second switch valve 311 to open, so that the sealed cavity 21 is communicated with the water tank 10, and controls the third switch valve 311 to close to block a passage between the sealed cavity 21 and the extraction liquid container 70, so that the sealed cavity 21 is airtight; then, the vacuum pump 30 is controlled to pump air out of the sealed cavity 21, and a negative pressure is formed in the sealed cavity 21, so that the liquid 300 in the water tank 10 enters the sealed cavity 21. In the pressure reduction stage, the controller 50 controls the first switch valve 221 and the third switch valve 311 to close, the second switch valve 311 to open, and the vacuum pump 30 performs air suction or air supply on the sealed cavity 21, specifically, the adjustment and control are performed according to a preset pressure value and a current pressure value in the sealed cavity 21. If the pressure value in the current closed cavity 21 is not less than the preset pressure, air extraction is performed, otherwise, air supply is performed.

In a preferred embodiment of the present invention, the extraction apparatus 100 further comprises:

a filter 200 disposed between the closed cavity 21 and the extract pump 60 and located at the dispensing opening 211; the filter 200 includes a filter housing 201 and a filter screen 202, and the filter screen 202 is disposed in the filter housing 201. The filter 200 can filter the extract 400, and filter out some impurities or the extract 400 with a size not meeting the requirement, so as to improve the extraction effect.

The upper portion of the filter cover 201 is detachably connected with the closed cavity 21, and a sealing ring is arranged between the filter cover 201 and the closed cavity 21. The filter 200 is thus easy to disassemble and wash, without affecting the sealing requirements of the sealed chamber 21 at the corresponding working stage. The closed cavity 21 is made of metal material for heat conduction.

Referring to fig. 1-2 in one embodiment of the present invention, a refrigerator 40 includes:

a refrigerating sheet 41 disposed on at least one surface of the sealed cavity 21;

and a fixing base 42 for fixing the cooling fin 41 to at least one surface of the sealed cavity 21.

Preferably, the refrigeration sheet 41 is arranged on the bottom surface or the side surface of the closed cavity 21; the cooling plate 41 is a thermoelectric semiconductor cooling assembly. The closed cavity 21 is cooled through the refrigerating sheet 41, and then the liquid 300 is cooled to a preset temperature. The cooling plate 41 may include a plurality of fins to accelerate heat dissipation, and the cooling plate 41 is preferably made of aluminum or other high thermal conductivity material. In addition, the refrigerator 40 may further include a fan to improve a cooling effect.

Referring to fig. 1-2, in one embodiment of the present invention, the extraction apparatus 100 further comprises:

a temperature sensor 80 disposed in the sealed cavity 21, detecting a temperature in the sealed cavity 21, and transmitting the detected temperature value to the controller 50; the temperature sensor 80 is attached to the inner wall of the closed cavity 21, can accurately measure the temperature in the closed cavity 21, and sends the detected temperature value to the controller 50 in real time or at regular time; and/or

A pressure sensor 90 disposed in the sealed chamber 21, detecting a pressure in the sealed chamber 21, and transmitting the detected pressure value to the controller 50; the pressure sensor 90 is attached to the inner wall of the closed cavity 21, can accurately measure the pressure in the closed cavity 21, and sends the detected pressure value to the controller 50 in real time or at regular time;

when the temperature value reaches a preset temperature, the controller 50 controls the refrigerator 40 to stop working; and/or the controller 50 controls the vacuum pump 30 to stop working when the pressure value reaches the preset pressure. Thereby, the low temperature and low pressure requirements for extraction of the extract 400 are met. Of course, the extraction apparatus 100 can perform the extraction of the extract 400 only at low temperature, only at low pressure, or both at low temperature and low pressure, and the specific extraction pressure and temperature are set by the controller 50. After the extract 400 is tasted, the controller 50 controls the vacuum pump 30 and the refrigerator 40 to stop working, the sealed space 21 is returned to normal pressure, and the extraction process is finished.

Referring to fig. 1-2, in an embodiment of the present invention, the liquid 300 flows between the sealed cavity 21 and the extraction liquid container 70 by controlling the vacuum pump 30 to exhaust and suck air, and the extraction liquid container 70 further has a water outlet switch to discharge the extracted liquid 300 for drinking. Thus, the extraction device 100 can achieve coffee brewing, juice extraction, tea brewing, and the like, and thus the extraction device 100 can be used as a coffee machine, a tea dispenser, or a juice maker. Since the present invention uses the liquid 300 at normal temperature as an interface, no unpleasant taste is extracted during the extraction. In addition, because the extraction process is carried out under the condition of forced pressure difference, the time is about 10 times shorter than the time of extraction under the condition of normal pressure, and in addition, because the invention has the function of temperature reduction, the time for reducing the temperature of the liquid 300 can be omitted.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An extraction apparatus, comprising:

a water tank for storing liquid;

2. The extraction apparatus of claim 1, further comprising:

3. The extraction apparatus of claim 1, wherein the refrigerator comprises:

4. The extraction device according to claim 3, wherein the refrigeration sheet is arranged on the bottom surface or the side surface of the closed cavity; the refrigerating plate is a thermoelectric semiconductor refrigerating assembly.

5. The extraction apparatus of claim 1, further comprising:

6. The extraction apparatus as claimed in claim 2, wherein the first connection pipe is provided with a first switch valve; a second switch valve is arranged on the second connecting pipe; a third switch valve is arranged on the third connecting pipe; and the first switch valve, the second switch valve and the third switch valve are respectively connected with the controller.

7. The extraction apparatus of claim 2, further comprising:

8. The extraction apparatus as claimed in claim 7, wherein the upper part of the filter cover is detachably connected to the closed cavity, and a sealing ring is disposed between the filter cover and the closed cavity.

9. The extraction apparatus according to claim 1, wherein the extract is coffee or tea or fruit.

10. The extraction apparatus as claimed in claim 1, wherein the predetermined temperature is less than room temperature and the predetermined pressure is less than one standard atmospheric pressure.