Beverage preparation device, control method and control device

Abstract

A beverage preparation device, a control method, and a control device. The beverage preparation device comprises a device main body (110), an extractor (120), a pressurizing apparatus (130), and a delivery apparatus (140). The extractor (120) comprises a fluid inlet (21) and a liquid outlet (22), the liquid outlet (22) being provided with a valve (30). The apparatus main body (110) is provided with a gas channel and a liquid channel, one end of the gas channel being in communication with the external atmosphere, and the other end being in communication with the fluid inlet (21). The pressurizing apparatus (130) is disposed in the gas channel, and the delivery apparatus (140) is disposed in the liquid channel, one end of the liquid channel being in communication with the fluid inlet (21) or the gas channel. When the valve (30) is closed and the pressurizing apparatus (130) is operating, gas pressure in the extractor (120) is greater than the external atmospheric pressure. The delivery apparatus (140) injects an extraction solvent, and the pressurizing apparatus (130) injects gas for pressurization; the pressure magnitude is not constrained by temperature or flow rate. During extraction, a large number of micro- and nano-bubbles are generated by means of gas pressurization impact on the liquid, and rapid depressurization upon valve opening, improving the flavor and mouthfeel of the beverage, and accelerating the dissolution of nutrients from ingredients.

Description

Beverage making apparatus, control method and control device

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 2024112849677, filed on September 12, 2024, entitled “Beverage making apparatus, control method and control device”, which is incorporated by reference herein in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of beverage making, and in particular to a beverage making apparatus, a control method and a control device. BACKGROUND

[0004] With the continuous improvement of people's living standards, beverages such as coffee and Chinese herbal health tea have gradually become popular in China. Currently, beverage making apparatuses are often equipped with extractors. The extractors use heating devices to heat water vapor or water pumps to pressurize water in order to improve extraction efficiency and taste. However, the extraction effect of these two methods cannot meet the growing taste needs of people due to the constraints of temperature and flow rate. SUMMARY

[0005] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides a beverage making apparatus that pressurizes by injecting gas into the extractor through a pressure boosting device. The pressure is not constrained by temperature and flow rate, and a large number of micro-nano bubbles can be generated in the entire extraction process by means of external gas pressurization impact on the liquid and rapid pressure relief. The micro-nano bubbles can improve the taste of the beverage and accelerate the dissolution of nutrients in the food materials.

[0006] The present application also provides a control method and a control device for a beverage making apparatus.

[0007] According to the beverage making apparatus of the first aspect of the present application, the beverage making apparatus comprises a device main body, an extractor, a pressure boosting device, and a conveying device. The extractor comprises a fluid inlet and a liquid outlet, and the liquid outlet is provided with a valve. The device main body is provided with a gas channel and a liquid channel. One end of the gas channel is in communication with the external atmosphere, and the other end is in communication with the fluid inlet. The pressure boosting device is arranged in the gas channel, and the conveying device is arranged in the liquid channel. One end of the liquid channel is in communication with the fluid inlet or the gas channel.

[0008] In the case where the valve is closed and the pressure boosting device is working, the gas pressure in the extractor is greater than the pressure of the external atmosphere.

[0009] According to the beverage making device, the liquid outlet is provided with a valve, the extractor has a fluid inlet, the gas channel and the fluid channel are connected with the fluid inlet respectively, in the case that the valve is closed, the conveying device injects liquid into the extractor through the liquid channel, the pressure increasing device injects gas into the sealed cavity through the gas channel to increase the pressure, the pressure is not constrained by temperature and flow rate, and the pressure is rapidly released after the valve is opened. Through the air pressure impact liquid and the pressure rapid release mode, a large number of micro-nano bubble molecules can be generated in the whole extraction process, the micro-nano bubbles can improve the flavor and taste of the beverage, and the dissolution of the nutritional ingredients in the food material can be accelerated.

[0010] On the basis of any one of the above embodiments, the extractor is detachably installed on the device body, and the fluid inlet is in communication with the gas channel and the liquid channel when the extractor is installed on the device body.

[0011] On the basis of any one of the above embodiments, the extractor comprises a pressure-bearing container, the liquid outlet is located on the pressure-bearing container, and the fluid inlet is at least one and is located at the top and / or bottom of the pressure-bearing container.

[0012] On the basis of any one of the above embodiments, the extractor further comprises a container holder, the container holder has a through hole, the pressure-bearing container is arranged in the through hole and a part of the pressure-bearing container extends out of the container holder, or the container holder and the pressure-bearing container are in an integrated structure.

[0013] On the basis of any one of the above embodiments, the extractor further comprises a filter, the filter is installed on the pressure-bearing container and used for placing the raw material to be extracted, and the filter comprises a plurality of filter through holes, so that the liquid in the extractor flows through the raw material to be extracted and flows out from the filter through holes.

[0014] On the basis of any one of the above embodiments, the extractor further comprises an import hopper, the import hopper is installed on the pressure-bearing container, and the outlet end of the import hopper can be immersed below the liquid level in the pressure-bearing container.

[0015] On the basis of any one of the above embodiments, the gas channel and the liquid channel are connected with the same fluid inlet.

[0016] On the basis of any one of the above embodiments, the extractor further comprises a bubbler, and the bubbler is installed on the liquid outlet.

[0017] According to the beverage making device control method, the method comprises the following steps.

[0018] In response to the pressure increasing instruction, the pressure increasing device is controlled to introduce gas into the extractor until the pressure in the extractor reaches the preset pressure and is maintained for the preset time length.

[0019] According to an embodiment of the second aspect of the present application, in response to the extraction instruction, the control device controls the delivery device to inject a preset target amount of extraction solvent into the extractor.

[0020] According to an embodiment of the second aspect of the present application, in response to the pressurization instruction, the control device controls the valve to be in a closed state.

[0021] In response to the foaming instruction, the control device controls the valve to be in an open state, and liquid in the extractor flows out from the liquid outlet.

[0022] According to an embodiment of the second aspect of the present application, in response to the cleaning instruction, the control device controls the pressure increasing device to introduce gas into the extractor while the valve is in an open state.

[0023] According to an embodiment of the second aspect of the present application, the preset pressure and the preset time length are determined based on a category of the food material in the extractor.

[0024] According to an embodiment of the second aspect of the present application, the preset pressure is greater than 0 bar and less than or equal to 20 bar, or the preset time length is greater than 0 min and less than or equal to 15 min.

[0025] According to an embodiment of the second aspect of the present application, the control of the pressure increasing device to introduce gas into the extractor until the pressure in the extractor reaches the preset pressure specifically includes:

[0026] Controlling a target time length for which the pressure increasing device works or a target amount of gas introduced into the extractor to reach, so that the pressure in the extractor reaches the preset pressure.

[0027] In a third aspect, the present application provides a control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the control method of the beverage making device according to the second aspect when executing the program.

[0028] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0030] Fig. 1 is a structural schematic diagram of a beverage making apparatus according to an embodiment of the present application.

[0031] Fig. 2 is a schematic diagram of the internal structure of the beverage making apparatus shown in Fig. 1.

[0032] Fig. 3 is a partial cross-sectional view of the beverage making apparatus shown in Fig. 1.

[0033] Fig. 4 is a diagram of the diameter distribution of ordinary water molecules, food materials and micro-nano bubbles.

[0034] Fig. 5 is a diagram of the penetration of ordinary water molecules and micro-nano bubbles through a food material micro-porous layer.

[0035] Fig. 6 is a diagram of a comparison between cold-brewed coffee prepared using the beverage making apparatus according to the present application and cold-brewed coffee prepared using a conventional beverage making apparatus.

[0036] Fig. 7 is a diagram of a comparison between cold-brewed tea prepared using the beverage making apparatus according to the present application and cold-brewed tea prepared using a conventional beverage making apparatus.

[0037] Fig. 8 is a diagram of a comparison between hot-brewed ginseng water prepared using the beverage making apparatus according to the present application and hot-brewed ginseng water prepared using a conventional beverage making apparatus.

[0038] Fig. 9 is a cross-sectional view of an extractor according to a first embodiment of the present application.

[0039] Fig. 10 is an exploded view of the extractor shown in Fig. 9.

[0040] Fig. 11 is a cross-sectional view of the extractor shown in Fig. 9 in an exploded state.

[0041] Fig. 12 is a cross-sectional view of an extractor according to a second embodiment of the present application.

[0042] Fig. 13 is an exploded view of the extractor shown in Fig. 12.

[0043] Fig. 14 is a cross-sectional view of an extractor according to a third embodiment of the present application.

[0044] Fig. 15 is a cross-sectional view of the extractor shown in Fig. 14 in an exploded state.

[0045] Fig. 16 is a cross-sectional view of an extractor according to a fourth embodiment of the present application.

[0046] Fig. 17 is a cross-sectional view of an extractor according to a fifth embodiment of the present application.

[0047] Fig. 18 is a control flowchart of a control method of a beverage making apparatus according to an embodiment of the present application.

[0048] Fig. 19 is a control flowchart of a control method of the beverage making apparatus according to an embodiment of the present application.

[0049] Fig. 20 is a control flowchart of a control method of the beverage making apparatus according to an embodiment of the present application.

[0050] Fig. 21 is a structural schematic diagram of the control apparatus according to an embodiment of the present application.

[0051] Reference signs: 110, apparatus body; 120, extractor; 10, container holder; 11, through hole; 12, handle; 13, supporting member; 20, pressure container; 21, fluid inlet; 22, liquid outlet; 30, valve; 40, filter; 50, introduction hopper; 60, frother; 130, pressure boosting device; 140, conveying device. DETAILED DESCRIPTION

[0052] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0053] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0054] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0055] In the embodiments of the present application, unless explicitly specified and limited, a first feature is "on" or "under" a second feature, which can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on top of" the second feature, which can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature can be "under", "below" and "underneath" the second feature, which can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0056] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0057] The beverage making device can be a coffee machine, a milk tea machine, a medicinal beverage machine, etc. Taking the coffee machine as an example, the traditional extractor mainly uses water vapor or liquid to pressurize. Among them, the water vapor pressurization relies on the heating device to heat the water to generate steam, and the steam is used for pressurization. The water vapor pressurization depends on the temperature of the water. The higher the temperature of the water, the faster the water vaporization speed, and the higher the steam pressure. Therefore, the pressure is affected by the temperature. The liquid pressurization relies on the water pump to extract and deliver water, and the water pump is used to pressurize the water in the process. The liquid pressurization is to pressurize the liquid by the water pump. The greater the extrusion force of the water pump, the faster the liquid flow rate, and the faster the pressurization. The pressure is affected by the performance of the water pump. The water vapor pressurization is affected by the temperature, and the water pressurization is affected by the flow rate. Temperature and flow rate are important factors affecting the taste of extraction in the extraction process.

[0058] Different from the conventional water vapor pressurization and liquid pressurization, under the premise of not changing or being subject to the parameters of temperature and flow rate, the present application adopts a gas pressurization mode, generates pressure by compressing gas, and performs extraction by matching a pressure-bearing container.

[0059] The beverage making device provided by the embodiments of the present application will be described below with reference to FIGS. 1-17.

[0060] The embodiment of the present application provides a kind of beverage making equipment, as shown in Figure 1 to Figure 3, which comprises equipment main body 110, extractor 120, booster device 130 and conveying device 140.Extractor 120 comprises fluid inlet 21 and liquid outlet 22, and valve 30 is arranged on liquid outlet 22.As shown in Figure 2, equipment main body 110 is provided with gas channel and liquid channel, one end of gas channel is communicated with external atmosphere, and the other end is communicated with fluid inlet 21.Booster device 130 is arranged in gas channel.Conveying device 140 is arranged in liquid channel, one end of liquid channel is communicated with fluid inlet 21 or gas channel.In the case that valve is closed and booster device works, the gas pressure in the extractor is greater than the pressure of external atmosphere.

[0061] The beverage making equipment is used for making coffee, milk beverage, fruit tea, Chinese herbal tea and other beverages.Based on any one of the above embodiments, a lock catch is arranged on the extractor 120, and the lock catch is matched with the connecting structure reserved on the equipment main body 110 to lock the extractor 120 on the equipment main body 110, so that the interior of the extractor 120 forms a closed state when the valve 30 is closed.

[0062] The liquid channel is used for introducing extraction solvent into the extractor 120.The extraction solvent is water, milk or other liquids.Based on any one of the above embodiments, a connecting head is arranged at the end of the liquid channel, and the connecting head can be connected with external liquid supply device such as faucet through pipeline.The conveying device 140 is a water pump or other device capable of introducing extraction solvent into the extractor 120.It can be understood that the conveying device 140 can be only a control valve, and when the control valve is opened, the external liquid supply device delivers extraction solvent into the extractor 120 through the liquid channel;when the control valve is closed, the external liquid supply device stops delivering extraction solvent into the extractor 120.

[0063] As shown in Figure 2, the booster device 130 is a device capable of injecting air into the extractor 120.Based on any one of the above embodiments, the booster device 130 comprises an air extractor and a switch valve, and the switch valve is used for controlling the opening and closing of the gas channel, and the air extractor injects a certain amount of air into the extractor 120, and then the switch valve is closed.Based on any one of the above embodiments, the booster device 130 comprises a booster pump, and the booster pump is used for adjusting the pressure of input gas.One end of the gas channel is communicated with external atmosphere, and air is extracted from external atmosphere by the booster device 130 and injected into the extractor 120.Based on any one of the above embodiments, a purifier is arranged at the inlet of the gas channel, and the purifier is an air filter or other filtering device, which can filter impurities in the air to avoid that the air entering the extractor 120 has impurities.Based on any one of the above embodiments, the purifier is located in front of the booster device 130 along the flow direction of the air, so that the air entering the booster device 130 is relatively clean, and the service life of the booster device 130 is improved.

[0064] The extractor 120 has a fluid inlet 21 and a liquid outlet 22. When the valve 30 is closed and the pressure boosting device 130 is working, the gas is introduced into the extractor 120 through the fluid inlet 21 to adjust the internal pressure of the extractor 120, so that the gas pressure in the extractor is greater than the pressure of the external atmosphere, thereby generating a large number of micro-nano bubbles in the extraction liquid. When the valve 30 is opened and the pressure boosting device 130 is working, the fluid inlet 21 can introduce gas into the extractor 120 to clean the extractor 120. On the basis of any of the above embodiments, the gas channel and the liquid channel are respectively connected with the fluid inlet 21. For example, the fluid inlet 21 is provided with two, the gas channel is connected with one of the fluid inlets 21, and the liquid channel is connected with the other fluid inlet 21. Alternatively, the fluid inlet 21 is provided with only one, and the gas channel and the liquid channel are respectively connected with the fluid inlet. On the basis of any of the above embodiments, the liquid channel can also be directly connected with the gas channel and connected with the fluid inlet through the gas pipeline. The extraction liquid can be discharged from the liquid outlet 22 into the beverage cup when the valve 30 is opened. On the basis of any of the above embodiments, the valve 30 is a manual valve, a solenoid valve or other types of valve body, as long as it can control the opening and closing of the liquid outlet 22. Unlike the conventional extractor 120 outlet which is always open, in the embodiment of the application, the opening and closing of the liquid outlet 22 is controlled by means of the valve 30. When the valve 30 is closed and the extractor 120 is installed on the equipment main body 110, the extractor 120 is sealingly connected with the equipment main body 110, so that the accommodation space of the extractor 120 becomes a sealed cavity. When the valve 30 is opened, the extraction liquid flows out from the liquid outlet 22, and the high-speed flowing extraction liquid drives the surrounding air to mix into the extraction liquid to form a large number of small bubbles, thereby obtaining a very dense taste.

[0065] Because the accommodation space in the extractor 120 is limited, during the process of introducing gas into the extractor 120 by the pressure boosting device 130, the pressure in the extractor 120 increases, and part of the gas is dissolved into the extraction liquid under the action of pressure to form micro-nano bubbles. Micro-nano bubbles generally refer to small bubbles with a bubble diameter less than 100 um, and the gas pressure is a key factor for generating micro-nano bubbles. Generally, when the gas pressure reaches 1-2 bar, micro-nano bubbles begin to be generated, the greater the pressure, the smaller the diameter of the generated micro-nano bubbles, and the stronger the stability of the micro-nano bubbles. As shown in FIGS. 4 and 5, the diameter of ordinary water molecules is 200-400 um, and the pore size of the surface micropore layer of the food material is 60-80 um. It can be seen that ordinary water molecules are difficult to pass through the food material. The water molecules of the micro-nano bubbles have a diameter less than 50 um, which can penetrate the food material more quickly to extract. In addition, the micro-nano bubbles can generate Sweet Foam in molecular cuisine. The Sweet Foam breaks on the tip of the tongue, which makes the brain feel sweet, realizes natural sweetness without adding sugar, and further realizes that the beverage has a unique flavor and taste of density, silkiness and sweetness.

[0066] In use, the delivery device 140 delivers an extraction solvent into the sealed cavity, and the extraction solvent is selected according to the type of the beverage. After the extraction solvent is injected, the pressure increasing device 130 introduces gas into the sealed cavity to make the gas pressure in the sealed cavity reach a preset pressure. After the gas pressure in the sealed cavity reaches the preset pressure value and remains for a preset time length, the valve 30 is opened, and the extraction liquid is rapidly discharged from the liquid outlet 22. For example, for cold extraction beverages, the extraction solvent can be a low-temperature liquid. Taking cold extraction coffee as an example, FIG. 6 is a comparison diagram of cold extraction coffee prepared by the beverage preparation device provided in the present application and cold extraction coffee prepared by a conventional beverage preparation device. The color and the amount of micro-nano bubbles of the two are different. Compared with conventional cold extraction, in the preparation process of the existing beverage preparation device, a low-temperature or room-temperature extraction solvent is usually used to directly soak the extraction raw materials such as tea leaves and coffee powder to obtain an extraction liquid. For the low-temperature and low-pressure soaking process, it is difficult to extract the unique flavor in the coffee, and the taste is generally bitter and astringent. The cold extraction coffee prepared by the beverage preparation device provided in the present application is milk-like, can be extracted under a low-temperature and high-pressure state, improves the extraction efficiency of caffeine, and the extraction process produces micro-nano bubbles, so that the coffee has a smooth and sweet taste, and achieves the effect of sweetening without adding sugar. It is found through comparison that when the beverage preparation device provided in the present application is used to prepare cold extraction coffee, the extraction time is shortened from the conventional extraction time of 8-10 hours to 3-10 minutes, the density is increased by 100%, the sweetness is increased by 50%, and the bitterness is reduced by 70%.

[0067] Taking cold extraction tea as an example, FIG. 7 is a comparison diagram of cold extraction tea prepared by the beverage preparation device provided in the present application and cold extraction tea prepared by a conventional beverage preparation device. Compared with conventional cold extraction tea, the extraction concentration of the cold extraction liquid is usually improved by prolonging the soaking time, while in the beverage preparation device provided in the present application, the pressurized extraction method is directly used on the extraction solvent and the extraction raw materials, the rupture of the micro-nano bubbles generated in the extraction process can greatly improve the aroma release of the tea leaves, and the gas impact can accelerate the penetration of the extraction solvent into the surface micropore layer of the extraction raw materials, so that the extraction raw materials can be penetrated and extracted faster, thereby shortening the extraction time and improving the extraction concentration. It is found through comparison that when the beverage preparation device provided in the present application is used to prepare cold extraction tea, the extraction time is shortened from the conventional extraction time of 8-10 hours to 5-10 minutes, the aroma is increased by 50%, and the astringency is reduced by 30%.

[0068] For hot extraction beverage, the extraction solvent can be high-temperature liquid. Taking hot extraction ginseng water as an example, the high-pressure state in the extraction process can significantly accelerate the dissolution of effective substances in ginseng, and the micro-nano bubbles generated in the extraction process can quickly penetrate the dense cell wall structure of the surface of ginseng, so as to quickly obtain ginseng water with rich taste. FIG. 8 is a comparison diagram of hot extraction ginseng water prepared by the beverage making equipment provided in the present application and hot extraction ginseng water prepared by a conventional beverage making equipment, wherein the ginseng adopts ginseng slices, and the high-temperature liquid used for hot extraction is hot water at 85°. Compared with the conventional hot extraction ginseng water, in the beverage making equipment provided in the present application, the rupture of the micro-nano bubbles generated in the extraction process can accelerate the dissolution of effective components in ginseng. It is found through comparison that when the beverage making equipment provided in the present application is used to prepare hot extraction ginseng water, the extraction time is shortened from the conventional extraction time of 30 min to 10-15 min, the concentration is increased by 25%, and the concentration of saponin active ingredients is increased by 30%.

[0069] The beverage making equipment provided in the embodiments of the present application is provided with a valve 30 at the liquid outlet 22, and the extractor 120 has a fluid inlet 21, and the gas channel and the liquid channel are respectively connected with the fluid inlet 21. In the case that the valve 30 is closed, the conveying device 140 injects liquid into the extractor 120 through the liquid channel, and the pressure increasing device 130 injects gas into the extractor 120 through the gas channel for pressure boosting. The pressure size is not constrained by temperature and flow rate, and the pressure is rapidly released after the valve 30 is opened. Through the mode of air pressure impact on liquid and rapid pressure release, a large number of micro-nano bubble molecules can be generated in the whole extraction process, and the micro-nano bubbles can improve the taste of beverage and accelerate the dissolution of nutritional components in food materials.

[0070] The extractor 120 is fixedly installed on the equipment main body 110 or detachably installed on the equipment main body 110. On the basis of any one of the above embodiments, the extractor 120 is detachably installed on the equipment main body 110. In the case that the extractor 120 is installed on the equipment main body 110, the fluid inlet 21 is connected with the gas channel and the liquid channel.

[0071] In use, the valve 30 is closed, the coffee powder, tea leaves, ginseng and other extraction materials are placed in the extractor 120, and then the extractor 120 is mounted on the device body 110 to form a sealed cavity between the extractor 120 and the device body 110. Then, the extraction solvent and gas are introduced into the extractor 120 by means of the conveying device 140 and the pressure boosting device 130. It should be noted that the order of introducing the gas into the extractor 120 by means of the pressure boosting device 130 and introducing the extraction solvent into the extractor 120 by means of the conveying device 140 is not limited. For example, the extraction solvent is first introduced into the extractor 120 by means of the conveying device 140, and then the gas is introduced into the extractor 120 by means of the pressure boosting device 130; or the extraction solvent and the gas are simultaneously introduced into the extractor 120 by means of the pressure boosting device 130 and the conveying device 140; or the gas is introduced into the extractor 120 by means of the pressure boosting device 130, and then the extraction solvent is introduced into the extractor 120 by means of the conveying device 140 after pressure regulation. Taking the powder or rhizome and leaf extraction materials as an example, the extraction solvent can be first introduced into the extractor 120 by means of the conveying device 140, and then the gas is introduced for pressure regulation; or the gas is first introduced into the extractor 120 by means of the pressure boosting device 130 to press the coffee powder extraction material, and then the extraction solvent is introduced into the extractor 120 by means of the conveying device 140, which prevents the powder from splashing and residue from being easily cleaned while improving the utilization rate of the extraction material.

[0072] The beverage making device provided by the embodiment of the present application can be conveniently disassembled and assembled for cleaning or replacing the extraction material by detachably mounting the extractor 120 on the device body 110.

[0073] In any of the above embodiments, as shown in FIGS. 9-17, the extractor 120 includes a pressure-bearing container 20, and the liquid outlet 22 is located on the pressure-bearing container. The fluid inlet 21 is at least one, and the fluid inlet 21 is located at the top and / or bottom of the pressure-bearing container 20. The fluid inlet 21 can also be provided on the part of the pressure-bearing container 20 extending through the through hole 11.

[0074] On the basis of any one of the above embodiments, the fluid inlet 21 is only provided with one, which is located at the top or bottom of the pressure container 20. As shown in FIG. 9, FIG. 12 and FIG. 17, the fluid inlet 21 is only provided with one, which is located at the top of the pressure container 20. In use, the extraction solvent and the gas enter the pressure container 20 from the top of the extractor 120. After the gas enters the pressure container 20, it first contacts the air inside the pressure container 20, and then slowly penetrates into the extraction liquid. On the basis of any one of the above embodiments, as shown in FIG. 16, the fluid inlet 21 is located at the bottom of the pressure container 20, and at this time the liquid channel and the gas channel are both communicated with the fluid inlet 21 through the connecting pipe. In use, the extraction solvent and the gas enter the pressure container 20 from the bottom of the extractor 120. After the high-pressure gas enters, it directly impacts the extraction liquid inside the pressure container 20 to generate bubbles. In this process, the high-pressure gas is in full contact with the extraction liquid, and the generated bubbles are more uniform and sufficient.

[0075] On the basis of any one of the above embodiments, the fluid inlet 21 is provided with two, the gas channel is communicated with one of the fluid inlets 21, and the liquid channel is communicated with the other fluid inlet 21. The two fluid inlets 21 can be both arranged at the top of the pressure container 20 or both arranged at the bottom of the pressure container 20, or one of the fluid inlets 21 is arranged at the top of the pressure container 20 and the other fluid inlet 21 is arranged at the bottom of the pressure container 20.

[0076] The extractor 120 provided by the embodiment of the present application can adjust the way in which the gas enters the pressure container 20 by adjusting the arrangement position of the fluid inlet 21, so that the high-pressure gas directly contacts the extraction liquid or slowly penetrates into the extraction liquid from above the liquid surface, to obtain different bubbling effects.

[0077] On the basis of any one of the above embodiments, the gas channel and the liquid channel are both connected with the same fluid inlet 21, so that the gas channel and the liquid channel share the fluid inlet 21, thereby simplifying the structure. On the basis of any one of the above embodiments, the fluid inlet 21 has two, one of the fluid inlets 21 is communicated with the liquid channel and serves as a liquid inlet for introducing the extraction solvent into the pressure container 20, and the other fluid inlet 21 is communicated with the gas channel and serves as a gas inlet for introducing the gas into the pressure container 20. Thus, the gas channel and the liquid channel are arranged independently in the beverage making equipment.

[0078] On the basis of any one of the above embodiments, the extractor 120 further comprises a container holder 10, the container holder 10 has a through hole 11, and the pressure container 20 is arranged through the through hole 11 and a part of the pressure container 20 extends out of the container holder 10.

[0079] The container holder 10 comprises a handle 12 and a supporting piece 13 arranged at one end of the handle 12, and a through hole 11 is arranged in the supporting piece 13, and the pressure-bearing container 20 is inserted into the through hole 11. The handle 12 is integrally arranged with the supporting piece 13 or detachably connected. For example, a threaded hole is arranged at the end of the handle 12 away from the holding part, and a threaded rod is arranged on the supporting piece 13, and the threaded rod is screwed into the threaded hole to realize the fixed connection of the handle 12 and the supporting piece 13. For another example, a slot is arranged at the end of the handle 12 away from the holding part, and a connecting head is arranged on the outer wall of the supporting piece 13, and the connecting head is inserted and fixed in the slot to fixedly connect the handle 12 and the supporting piece 13 together. Alternatively, the handle 12 and the supporting piece 13 are an integral structure. The supporting piece 13 is in a hollow columnar shape, and the hollow hole in the inside thereof serves as the through hole 11 for the pressure-bearing container 20 to pass through. The container holder 10 is provided with a lock catch, and the lock catch is connected with the connecting structure reserved on the equipment main body 110, so that the pressure-bearing container 20 is sealingly connected with the equipment main body 110 to form a sealed cavity.

[0080] On the basis of any one of the above embodiments, the inlet end of the pressure-bearing container 20 is provided with a folded edge, the through hole 11 is in a stepped shape, and the folded edge is arranged on the stepped surface of the through hole 11, so that the pressure-bearing container 20 is overlapped on the container holder 10. On the basis of any one of the above embodiments, as shown in FIGS. 9, 12, 14, 16 and 17, after the folded edge is arranged on the supporting piece 13, the end surface of the pressure-bearing container 20 is flush with or slightly higher than the end surface of the container holder 10, so that the end surface of the pressure-bearing container 20 is not protruded outwardly from the end surface of the container holder 10, and it is ensured that when the pressure-bearing container 20 is overlapped on the container holder 10 and the extractor 120 is installed on the equipment main body 110, the end surface of the container holder 10 can be attached to the equipment main body 110 to form a good seal.

[0081] Compared with the traditional extraction device, in the embodiment of the present application, the pressure-bearing container 20 is partially extended outwardly to the outside of the container holder 10 after passing through the through hole 11, has a larger accommodation space, and can have space to inject air in addition to accommodating the extraction solvent. As shown in FIGS. 10, 11, 13 and 15, the pressure-bearing container 20 is in a barrel shape, one end of which is open, and the other end has a bottom wall. The open end of the pressure-bearing container 20 serves as a fluid inlet 21, and a liquid outlet 22 is arranged on the bottom wall. When the extractor 120 is installed on the equipment main body 110, the open end of the pressure-bearing container 20 is in communication with the gas passage and the liquid passage, so that the extraction solvent and the gas can be injected into the pressure-bearing container 20, the air pressure in the pressure-bearing container 20 is adjusted, the gas is dissolved in the extraction liquid to generate micro-nano bubbles, and the dissolution of the effective components in the food material is accelerated.

[0082] The pressure vessel 20 and the container holder 10 can be provided separately or integrally. When the pressure vessel 20 and the container holder 10 are provided separately, the inner diameter of the pressure vessel 20 can be up to 56-57 mm. As shown in FIGS. 14 and 15, when the pressure vessel 20 and the container holder 10 are provided integrally, the inner diameter of the pressure vessel 20 can be up to 60 mm without changing the overall size. Thus, compared with the separate provision, the integral design of the pressure vessel 20 and the container holder 10 allows the internal capacity of the pressure vessel 20 to be larger, thereby realizing the preparation of a larger cup of beverage.

[0083] On the basis of any one of the above embodiments, the extractor 120 further comprises a filter 40 installed in the pressure vessel 20 for placing the raw material to be extracted. The filter 40 comprises a plurality of filter holes, so that the liquid in the extractor flows through the raw material to be extracted and flows out of the filter holes. On the basis of any one of the above embodiments, the filter 40 is a filter screen or a mesh plate. The filter 40 can be provided separately from the pressure vessel 20 or integrally with the pressure vessel 20. The installation of the filter 40 can prevent non-liquid raw materials to be extracted from entering the extraction liquid, thereby improving the appearance and convenience of the beverage.

[0084] The filter 40 can be installed at the inlet end or inside the pressure vessel 20. When the filter 40 is installed at the inlet end of the pressure vessel 20, as shown in FIGS. 9-11 and 14-16, the extraction solvent first passes through the filter 40 and then gradually fills the internal space of the pressure vessel 20. The filter 40 is always located above the liquid level in the pressure vessel 20, and the extraction solvent flows through the raw material on the filter 40 when entering from the fluid inlet 21 at the top. When the filter 40 is installed inside the pressure vessel 20, as shown in FIG. 17, the filter 40 and the food material on the filter 40 are soaked in the extraction solvent. Thus, by adjusting the installation position of the filter 40, the contact mode of the liquid in the pressure vessel 20 between the extraction solvent and the filter 40 can be changed, thereby forming different beverage tastes. On the basis of any one of the above embodiments, the extraction solvent can be made to pass through the filter 40 and then fill the internal space of the pressure vessel 20, or the filter 40 can be soaked in the extraction solvent, according to the taste needs. For example, the filter 40 is arranged at the open end of the pressure vessel 20, as shown in FIGS. 12 and 13, the depth of the filter 40 is designed to make the filter 40 immersed in the extraction solvent; or, as shown in FIGS. 9, 14 and 16, the depth of the filter 40 is designed to make the filter 40 suspended above the liquid level. For another example, the filter 40 is arranged inside the pressure vessel 20, and the installation position of the filter 40 inside the pressure vessel 20 is designed to make the filter 40 immersed in the extraction solvent (as shown in FIG. 17) or suspended above the liquid level.

[0085] The pressure-bearing container 20 is provided with a supporting portion, and the filter 40 is overlapped with the supporting portion. The supporting portion is a receiving groove arranged at the port of the pressure-bearing container 20 or a boss arranged on the inner wall of the pressure-bearing container 20. The filter 40 is overlapped with the supporting portion, so that the filter 40 and the pressure-bearing container 20 are detachably connected.

[0086] On the basis of any one of the above embodiments, as shown in FIGS. 9 to 16, the filter 40 is in a barrel shape, and the end of the filter 40 is provided with a connecting edge. The port of the pressure-bearing container 20 is provided with a receiving groove, and the connecting edge is arranged in the receiving groove, so that the barrel-shaped filter 40 is overlapped with the pressure-bearing container 20. The thickness of the connecting edge is consistent with the size of the receiving groove, so that after the connecting edge is arranged in the receiving groove, the end face of the inlet of the filter 40 is flush with or slightly lower than the end face of the pressure-bearing container 20. When the extractor 120 is installed on the equipment main body 110, the inlet of the pressure-bearing container 20 is abutted with the equipment main body 110 to realize sealed connection, and at the same time, the filter 40 is sealedly connected with the equipment main body 110 and the pressure-bearing container 20. Of course, the barrel-shaped filter 40 can also be integrally arranged with the pressure-bearing container 20. As shown in FIGS. 9, 14 and 16, the filter 40 is located above the liquid surface; as shown in FIG. 12, the depth of the filter 40 is relatively large, and the filter 40 is partially immersed in the liquid.

[0087] On the basis of any one of the above embodiments, as shown in FIG. 17, the filter 40 is in a plate shape, and is arranged in the interior of the pressure-bearing container 20 and below the liquid surface in the pressure-bearing container 20. On the basis of any one of the above embodiments, the interior of the pressure-bearing container 20 is provided with a boss, and the filter 40 is overlapped with the boss. Alternatively, the filter 40 is integrally arranged with the pressure-bearing container 20.

[0088] The beverage making equipment provided in the embodiments of the present application is provided with the extractor 120 including the filter 40. Compared with the extractor 120 without the filter 40, the type of the beverage that can be prepared is more various.

[0089] As shown in FIG. 17, the extractor 120 further includes a guide-in hopper 50, and the guide-in hopper 50 is installed on the pressure-bearing container 20. The outlet end of the guide-in hopper 50 can be immersed below the liquid surface in the pressure-bearing container 20.

[0090] The guide hopper 50 is of an integrated structure. As shown in FIG. 17, the guide hopper 50 is arranged on the open end of the pressure container 20. On the basis of any one of the above embodiments, the guide hopper 50 comprises a hopper body and a flow guide pipe, and the flow guide pipe is installed at the small-diameter end of the hopper body. The hopper body is in the shape of a conical platform, and the large-diameter end of the hopper body is provided with a connecting lug extending outward. A first groove is correspondingly arranged on the open end of the pressure container 20, and the connecting lug is arranged in the first groove, so that the hopper body is arranged on the open end of the pressure container 20. Alternatively, a ring-shaped outer edge is arranged on the large-diameter end of the hopper body, and a second groove is arranged on the open end of the hopper body, the second groove is circumferentially arranged in a ring shape, and the outer edge is arranged in the second groove, so that the hopper body is arranged on the open end of the pressure container 20. The flow guide pipe is an elongated pipe, and the flow guide pipe is arranged at the small-diameter end of the hopper body.

[0091] In order to improve the sealing performance of the connection, after the guide hopper 50 is arranged on the pressure container 20, the inlet end surface of the guide hopper 50 is flush with or lower than the end surface of the pressure container 20. When the extractor 120 is installed on the device main body 110 of the beverage making device, the pressure container 20 and the device main body 110 are sealingly connected, and then the guide hopper 50 is sealingly connected with the pressure container 20 and the device main body 110, so as to ensure the sealing performance of the pressure container 20. During the extraction process, the end of the flow guide pipe is inserted below the liquid surface of the pressure container 20, and the gas directly enters the extraction liquid along the guide hopper 50 and quickly mixes with the extraction liquid, so that more abundant micro-nano bubbles can be obtained. Especially when milk bubbles are processed, clear milk bubbles can be obtained, which are dense and long-lasting, and the foam is super-long and lasts for more than 300s-600s. In addition, the milk tastes sweet, and the sweetness is increased by more than 20%.

[0092] The structure of the extractor 120 is different for different beverages. For example, for milk or other pure liquid raw materials to be extracted, no filtration is required, and correspondingly, the extractor 120 does not need to be provided with the filter 40. If the beverage is coffee, tea or other beverages, the raw material to be extracted is coffee powder, ginseng slices and tea leaves, etc. At this time, on the basis of any one of the above embodiments, the extractor 120 further comprises the filter 40, and the filter 40 is installed on the pressure container 20 and located below the guide hopper 50. The filter 40 is arranged below the guide hopper 50 and immersed in the extraction liquid of the pressure container 20. When the extraction liquid is discharged from the liquid outlet 22, the filter 40 can prevent tea leaves, fruit residues, etc. from flowing out, and improve the drinking taste of the extraction liquid. On the basis of any one of the above embodiments, the guide hopper 50 has a bottom, and the raw material to be extracted is placed on the bottom of the guide hopper 50. The guide hopper 50 is provided with a plurality of guide holes, so that the liquid flows through the guide hopper 50 and flows out from the guide holes. Therefore, the guide hopper 50 can play the role of a filter as a filter screen.

[0093] On the basis of any one of the above embodiments, the extractor 120 further comprises a bubbler 60 installed at the liquid outlet 22. The bubbler 60 is separate from the valve 30 or integrated with the valve 30.

[0094] As shown in FIGS. 9, 12, 14, 16 and 17, the bubbler 60 is located in front of the valve 30 in the outflow direction of the fluid. The fluid is bubbled by the bubbler 60 before flowing out of the valve 30. Compared with the case without the bubbler 60, the bubbler 60 can form more dense bubbles, improve the fineness of the extraction liquid, and achieve slow release of the extraction liquid during discharge of the extraction liquid, reducing the splashing phenomenon during discharge of the extraction liquid. In addition, the bubbler 60 can also be arranged behind the valve 30, i.e., the fluid flows out of the valve 30 and then passes through the bubbler 60.

[0095] On the basis of any one of the above embodiments, the bubbler 60 is a Venturi bubbler. For example, a plurality of Venturi bubblers are connected in series in front of the valve 30. A large number of bubbles are generated during the flow of the fluid along the Venturi tube. On the basis of any one of the above embodiments, the bubbler 60 is a plurality of stacked plate bodies. Each plate body is provided with a plurality of through holes, and the through holes of the plurality of plate bodies are arranged in a staggered manner to form a fluid channel. When the fluid flows along the fluid channel, the staggered arrangement of the through holes changes the aperture, thereby further improving the fineness of the extraction liquid.

[0096] The embodiments of the present application also provide a control method of the beverage making device as described above, as shown in FIG. 18, which comprises the following steps:

[0097] In step 100, in response to a pressurization instruction, the pressure increasing device 130 is controlled to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches a preset pressure and is maintained for a preset time length.

[0098] The pressurization instruction can be actively input by the user on the operation interface or triggered during the control process. On the basis of any one of the above embodiments, for liquid type raw materials to be extracted or after the extraction solvent is completely delivered into the extractor 120 by the delivery device 140, the user inputs the pressurization instruction through a button, a knob or a touch screen, controls the pressure increasing device 130 to start, and according to different raw materials to be extracted, synchronously confirms the specific size of the preset time length and the preset pressure when inputting the start instruction of the pressure increasing device 130. The preset time length and the preset pressure can be preset parameters by default of the controller, or the preset parameters are synchronously updated by the user on the operation interface. On the basis of any one of the above embodiments, during the operation process, the control device automatically generates the pressurization instruction according to the current working state of the beverage making device. For example, in the case where the amount of the extraction solvent in the extractor 120 reaches a preset target amount, the pressurization instruction is triggered to start the pressure increasing device 130.

[0099] The pressure boosting device 130 can generate an arbitrary pressure greater than 0 bar and less than or equal to 20 bar in the interior of the pressure-bearing container 20. For example, the pressure is determined according to the working time of the pressure boosting device 130, and the longer the working time, the greater the pressure. Alternatively, the pressure is determined according to the amount of gas introduced into the pressure-bearing container 20. When the preset pressure is reached in the cavity, the pressure boosting device 130 stops working.

[0100] For liquid raw materials such as milk, the liquid raw materials can be directly placed in the pressure-bearing container 20, and correspondingly, during extraction, the pressure boosting device 130 is directly controlled to pressurize the extractor 120 to generate micro-nano bubbles, without the need to introduce an extraction solvent into the pressure-bearing container 20. For non-liquid raw materials such as coffee powder, tea leaves, and ginseng slices, the extraction solvent is delivered to the extractor 120 by the delivery device 140, and the application does not specifically limit the delivery order of the extraction solvent and the gas. When the valve body 30 is in an open state during use, the beverage making device can also directly respond to the pressurization instruction to introduce gas into the extractor 120 by means of the pressure boosting device 130 to clean the extractor 120 or remove the residual extraction liquid and extraction raw material residue in the extractor 120, thereby avoiding cross-contamination between multiple extractions.

[0101] The category of food materials in the extractor 120 can be automatically identified by a camera or other means, or manually input by the user. The preset time and the preset pressure are set according to different categories of food materials. For easily extracted food materials such as coffee powder and tea leaves, the preset pressure can be controlled to be greater than 0 bar and less than or equal to 10 bar. For example, the preset pressure can be 2 bar, 5 bar, 6 bar, or 10 bar. For difficult-to-extract food materials such as ginseng and American ginseng, the preset pressure can be controlled to be greater than 0 bar and less than or equal to 20 bar. For example, the preset pressure can be 2 bar, 5 bar, 10 bar, or 20 bar. The length of time for which the pressure is maintained depends on the type of food material being extracted. For example, for easily extracted food materials such as coffee powder and tea leaves, the preset time can be controlled to be greater than or equal to 3 min and less than or equal to 10 min. For example, the preset time can be set to 3 min, 5 min, 6 min, or 10 min. For difficult-to-extract food materials such as ginseng and American ginseng, the preset time is longer to sufficiently extract the effective components in the food materials, and can be set to be greater than or equal to 5 min and less than or equal to 15 min. For example, the preset time can be set to 5 min, 8 min, 9 min, or 14 min.

[0102] The control method of the beverage making device provided in the embodiments of the application can deliver gas into the extractor 120 by the pressure boosting device 130 to pressurize the extractor 120 during the extraction process, thereby achieving gas pressurization. Compared with the traditional water vapor pressurization and liquid pressurization methods, the method does not require a heating device, has a simple structure, and is not affected by temperature and flow rate, and can adjust the pressure in the extractor 120 as needed for extraction.

[0103] On the basis of any one of the above embodiments, the control method further comprises: step 200, in response to the extraction instruction, controlling the delivery device 140 to inject a preset target amount of extraction solvent into the extractor 120.

[0104] Wherein, step 200 can be executed before step 100, simultaneously with step 100, or after step 100. On the basis of any one of the above embodiments, the control method further comprises a response sequence judgment process executed before step 100 and step 200. On the basis of any one of the above embodiments, the extractor is provided with a liquid level sensor or a capacitive sensor for detecting the carrying state in the pressure container, or the user inputs the selection of the carrying state of the to-be-extracted raw material during the current extraction on the operation interface. The carrying state includes whether there is to-be-extracted raw material, and the physical state of the to-be-extracted raw material, such as liquid or solid form. The response sequence judgment process includes: obtaining the carrying state in the pressure container 20; in the case of liquid state of the carrying state, controlling to execute the pressurization instruction; in the case of solid state of the carrying state, controlling to execute the extraction instruction; in the case of empty of the carrying state, controlling to execute the cleaning instruction.

[0105] On the basis of any one of the above embodiments, the control method further comprises: step S300, in response to the cleaning instruction, controlling the booster 130 to introduce gas into the extractor 120 when the valve 30 is in the open state. On the basis of any one of the above embodiments, step S300 further comprises controlling the valve 30 to be in the open state, or outputting a valve opening prompt instruction to manually open the valve 30 by the user. On the basis of any one of the above embodiments, when the carrying state in the pressure container 20 is obtained as empty, it is further judged whether the valve 30 is in the open state, and if so, the control executes the cleaning instruction, and the control device responds to the cleaning instruction to start the booster 130 to run, and introduces gas into the extractor 120, so that the residual liquid or residual raw material in the extractor 120 is discharged from the liquid outlet 22 by means of the rapid airflow, to clean the extractor 120 or remove a small amount of residual extraction liquid and extraction raw material residue in the extractor 120, avoid the problem of cross smell between multiple different to-be-extracted raw materials, and at the same time, make the beverage making device have a self-cleaning function, improve the user experience and prolong the service life.

[0106] On the basis of any one of the above embodiments, as shown in FIG. 19, in response to the extraction instruction, the control device controls the delivery device 140 to inject a preset target amount of extraction solvent into the extractor 120, and then in response to the pressurization instruction, the control device controls the pressurization device 130 to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches a preset pressure and is maintained for a preset time length. On the basis of any one of the above embodiments, the extraction instruction includes the pressurization instruction, in response to the extraction instruction, the control device controls the delivery device 140 to inject a preset target amount of extraction solvent into the extractor 120, and controls the pressurization device 130 to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches a preset pressure and is maintained for a preset time length. On the basis of any one of the above embodiments, as shown in FIG. 20, in response to the pressurization instruction, the control device controls the pressurization device 130 to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches a preset pressure and is maintained for a preset time length; and then in response to the extraction instruction, the control device controls the delivery device 140 to inject a preset target amount of extraction solvent into the extractor 120.

[0107] For example, in the case of low-temperature high-pressure extraction, a preset target amount of extraction solvent can be first injected into the extractor 120 by the delivery device 140, and then pressurized by the pressurization device 130, or the delivery device 140 can deliver extraction solvent into the extractor 120 while the pressurization device 130 pressurizes. Compared with the existing atmospheric cold extraction scheme, the delivery device 140 injects low-temperature extraction solvent, and the extractor 120 is pressurized by the pressurization device 130, so that a higher extraction rate and richer aroma can be obtained.

[0108] For example, in the case of powder type raw materials to be extracted, gas can be first introduced into the extractor 120 by the pressurization device 130 to pressurize, and then a preset target amount of extraction solvent can be first injected into the extractor 120 by the delivery device 140. The gas pressure can be used to press the loose powder into a relatively tightly packed cake shape, avoiding the splashing of the powder, which can result in a low extraction rate and difficulty in cleaning.

[0109] Before the control device controls the delivery device 140 to inject a preset target amount of extraction solvent into the extractor 120 in response to the extraction instruction, the extracted food materials such as coffee powder and tea leaves are manually placed into the extractor 120. On the basis of any one of the above embodiments, the extracted food materials are placed on the filter 40 in the pressure-bearing container 20 to prevent the food materials from entering the extraction liquid and affecting the taste of the beverage. Then, the extractor 120 is installed on the equipment main body 110, and the pressure-bearing container 20 is sealingly connected to the equipment main body 110 to form a sealed cavity.

[0110] The extraction instruction is an operation instruction for controlling the beverage making device to start extraction. The extraction instruction can be input by the user or automatically generated. For example, after the extractor 120 is installed on the device main body 110 and detects that it is installed in place, the extraction instruction is automatically generated to control the conveying device 140 to start conveying the extraction solvent into the extractor 120. Alternatively, an extraction switch is provided on the device main body 110, and the user triggers the extraction switch to input the extraction instruction to the beverage making device. The extraction switch can be in the form of a mechanical button or a touch button, etc. It can be understood that multiple extraction switches can be provided for different extraction ingredients, such as a coffee button, a fruit tea button, and a Chinese herbal medicine beverage button. Alternatively, multiple extraction switches form different gears, and each extraction switch corresponds to different preset target amounts and preset pressures. According to the type of extraction ingredient, the user can select the appropriate gear to input the extraction instruction.

[0111] On the basis of any of the above embodiments, the extraction instruction is a single instruction, which is only used to control the operation of the conveying device 140 to convey the extraction solvent into the extractor 120 or stop conveying. For example, an extraction button is provided on the beverage making device, and after the user taps the extraction button, the control device generates an extraction instruction, and the beverage making device responds to the extraction instruction to control the conveying device 140 to convey the extraction solvent. On the basis of any of the above embodiments, the extraction instruction is a composite instruction, which includes a liquid conveying instruction, a pressurizing instruction, a frothing instruction, and the execution order and execution time length of each instruction, etc. The liquid conveying instruction is used to control the operation of the conveying device 140, the pressurizing instruction is used to control the operation of the pressure increasing device 130, and the frothing instruction is used to control the opening of the valve 30. After responding to the extraction instruction, the beverage making device automatically completes the extraction process according to the specific content of the extraction instruction, without the need for the operator to input each instruction one by one at the corresponding time.

[0112] The conveying device 140 sends the extraction solvent into the pressure-bearing container 20 to mix the extraction solvent with the ingredients therein. The temperature of the added extraction solvent is not limited. When the added extraction solvent is normal temperature or cold water, and the water temperature is ≤25 degrees, a cold extraction effect can be achieved; when the added extraction solvent is water heated to a temperature >25 degrees, a hot extraction effect can be achieved. When the water amount reaches the preset target amount, the conveying device 140 stops working. The preset target amount is less than the volume of the accommodation cavity of the pressure-bearing container 20. It can be understood that the preset target amount is a single fixed gear, and the preset target amount is fixed for different extraction ingredients to obtain a fixed amount of beverage. Alternatively, the preset target amount has multiple different capacity gears, such as a first capacity gear for large cups of beverage, a second capacity gear for medium cups of beverage, and a third capacity gear for small cups of beverage. When in use, the appropriate capacity gear is selected according to the capacity of the required beverage.

[0113] In the case that the valve 30 is a manual valve, after the pressure in the extractor 120 is maintained for the preset time length, the beverage making device is controlled to send a reminder information so that the operator manually opens the valve 30 according to the reminder information. The reminder information can be a prompt text or pattern displayed on the operation screen, or a preset prompt sound or light alarm, etc.

[0114] In the case that the valve 30 is an electric valve, after the pressure in the extractor 120 is maintained for the preset time length, the valve 30 is controlled to be opened. Based on any of the above embodiments, in the case that the valve 30 is an electric valve, the control method further comprises: in response to the pressurizing instruction, the valve 30 is controlled to be in a closed state; in response to the foaming instruction, the valve 30 is controlled to be in an open state, and the liquid in the extractor 120 flows out from the liquid outlet 22. After the valve 30 is controlled to be in the closed state in response to the pressurizing instruction, the pressurizing device 130 is controlled to introduce the gas into the extractor 120. After the extraction is completed, the valve 30 is automatically opened in response to the foaming instruction, and the extracted liquid flows out from the liquid outlet 22.

[0115] The foaming instruction is used to indicate that the extracted liquid preparation is completed and needs to be discharged. The foaming instruction is automatically generated by the control device according to the current running state of the beverage making device, or is a sub-instruction arranged according to the time axis in the extraction instruction. After the pressure is maintained for the preset time length, the valve 30 is opened, and the extracted liquid is quickly discharged from the liquid outlet 22 to obtain the extracted liquid with a large number of fine micro-bubbles. Thus, by using the pressurizing device 130 to compress the gas to generate pressure, and by using the extractor 120 with the valve 30, a large number of micro-bubbles are generated by means of air pressurization impact on the liquid and quick pressure relief of the valve 30, so as to improve the taste of the beverage and accelerate the dissolution of the nutritional ingredients in the food material.

[0116] Based on any of the above embodiments, the preset pressure is greater than 0 bar and less than or equal to 10 bar, and / or the preset time length is greater than 0 min and less than or equal to 15 min.

[0117] Based on any of the above embodiments, the preset pressure is greater than 0 bar and less than or equal to 10 bar, and the preset time length is greater than or equal to 3 min and less than or equal to 10 min. Based on any of the above embodiments, the preset pressure is greater than or equal to 2 bar and less than or equal to 4 bar. As described above, when the gas pressure reaches 1-2 bar, the micro-bubbles begin to be generated. In order to ensure the generation of the micro-bubbles and balance the extraction efficiency, the preset pressure is set to any value greater than or equal to 2 bar and less than or equal to 4 bar.

[0118] For the relatively difficult-to-extract food material, such as coffee powder and tea leaves, the preset pressure is smaller, and the preset time length is shorter, so that the effective components in the food material can be fully extracted.

[0119] In any of the above embodiments, the preset pressure is greater than 0 bar and less than or equal to 20 bar, and the preset time length is greater than or equal to 5 min and less than or equal to 15 min. For example, the preset pressure is 10 bar, and the preset time length is 7 min. For another example, the preset pressure is 5 bar, and the preset time length is 15 min. For still another example, the preset pressure is 20 bar, and the preset time length is 5 min. For root and stem food materials such as ginseng and American ginseng that are difficult to extract, the preset pressure can be increased or the preset time length can be extended to obtain a rich beverage. In any of the above embodiments, the preset pressure is greater than or equal to 4 bar and less than or equal to 9 bar.

[0120] In any of the above embodiments, the control of the pressure increasing device 130 to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches the preset pressure specifically includes: controlling the working target time length of the pressure increasing device 130 or controlling the target amount of gas introduced into the extractor 120 to reach the target amount, so that the pressure in the extractor 120 reaches the preset pressure.

[0121] For example, the gas passage is provided with a flow meter, and the gas flow is detected by means of the flow meter. The target amount of gas required is determined according to the preset pressure, and the pressure increasing device 130 is controlled to be closed when the gas flow reaches the target amount of gas corresponding to the preset pressure. In any of the above embodiments, the flow meter is arranged on the equipment main body 110 and located at a position connected to the fluid inlet 21 of the extractor 120. When the fluid inlet is used as both a liquid inlet and a gas inlet, the flow meter can detect both the gas flow and the extraction solvent flow.

[0122] For another example, the extractor 120 is provided with a pressure detection element for detecting the gas pressure in the pressure-bearing container 20. When the gas pressure reaches the preset pressure, the pressure increasing device 130 is controlled to be closed. Alternatively, the gas flow passing through the pressure increasing device 130 per unit time is constant, the target amount of gas required is determined according to the preset pressure, the target time length for the pressure increasing device 130 to work is determined according to the target amount of gas and the gas flow passing through the pressure increasing device 130 per unit time, and the pressure increasing device 130 is closed after the target time length.

[0123] Fig. 21 shows a physical structure diagram of a control device, as shown in Fig. 21, the control device can include: a processor 810, a communications interface 820, a memory 830 and a communications bus 840, wherein the processor 810, the communications interface 820, the memory 830 complete the communication with each other through the communications bus 840. The processor 810 can call the logic instructions in the memory 830 to execute the following method: in response to the extraction instruction, controlling the conveying device 140 to inject a preset target amount of extraction solvent into the extractor 120; controlling the pressure increasing device 130 to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches a preset pressure and maintains for a preset time length.

[0124] In addition, the logic instructions in the memory 830 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the related art or part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0125] On the other hand, the embodiments of the present application disclose a computer program product, the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the method provided by the above-mentioned method embodiments, for example, including: in response to the extraction instruction, controlling the conveying device 140 to inject a preset target amount of extraction solvent into the extractor 120; controlling the pressure increasing device 130 to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches a preset pressure and maintains for a preset time length.

[0126] In yet another aspect, the embodiments of the present application also provide a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a transmission method provided by any of the above embodiments, for example, including: in response to an extraction instruction, controlling the delivery device 140 to inject a preset target amount of extraction solvent into the extractor 120; and controlling the pressure boosting device 130 to introduce gas into the extractor 120 until the pressure in the extractor 120 reaches a preset pressure and is maintained for a preset time length.

[0127] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0128] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be implemented by means of software plus necessary general hardware platforms, and of course can also be implemented by hardware. Based on such understanding, the above technical solutions, essentially or in terms of related art, can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the present application, but not to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the scope of the present application, and should be covered in the scope of the claims of the present application.

Claims

1. A beverage making apparatus comprising: The device body, the extractor, the pressure boosting device and the conveying device, the extractor comprising a fluid inlet and a liquid outlet, the liquid outlet being provided with a valve, the device body being provided with a gas channel and a liquid channel, one end of the gas channel being in communication with the external atmosphere, the other end being in communication with the fluid inlet, the pressure boosting device being arranged in the gas channel, the conveying device being arranged in the liquid channel, one end of the liquid channel being in communication with the fluid inlet or the gas channel; In the case that the valve is closed and the pressure boosting device is working, the gas pressure in the extractor is greater than the pressure of the external atmosphere.

2. The beverage making apparatus according to claim 1, wherein, The extractor is detachably mounted on the device body, in the case that the extractor is mounted on the device body, the fluid inlet is in communication with the gas channel and the liquid channel.

3. The beverage production apparatus according to claim 1 or 2, wherein The extractor comprises a pressure-bearing container, the liquid outlet is located on the pressure-bearing container, the fluid inlet is at least one, and the fluid inlet is located at the top and / or bottom of the pressure-bearing container.

4. The beverage production apparatus according to claim 3, wherein The extractor further comprises a container holder, the container holder has a through hole, the pressure-bearing container is arranged in the through hole, and a part of the pressure-bearing container extends out of the container holder; alternatively, the container holder and the pressure-bearing container are in an integrated structure.

5. The beverage production apparatus according to claim 3 or 4, wherein, The extractor further comprises a filter, the filter is mounted on the pressure-bearing container, and is used for placing raw materials to be extracted; The filter comprises a plurality of filter through holes, so that the liquid in the extractor flows through the raw materials to be extracted and flows out from the filter through holes.

6. The beverage production apparatus according to any one of claims 3 to 5, wherein, The extractor further comprises an inlet guide, the inlet guide is mounted on the pressure-bearing container, and the outlet end of the inlet guide can be immersed below the liquid level in the pressure-bearing container.

7. The beverage production apparatus according to any one of claims 3 to 6, wherein, The gas channel and the liquid channel are connected with the same fluid inlet.

8. The beverage production apparatus according to any one of the claims 1 to 7, wherein, The extractor further comprises a bubbler, and the bubbler is mounted on the liquid outlet.

9. A control method applied to the beverage making device according to any one of claims 1 to 8, comprising: in response to a pressurization instruction, controlling the pressure boosting device to introduce gas into the extractor until the pressure in the extractor reaches a preset pressure and is maintained for a preset time length.

10. The control method of the beverage making device according to claim 9, further comprising: in response to an extraction instruction, controlling the conveying device to inject a preset target amount of extraction solvent into the extractor.

11. The control method of the beverage making device according to claim 9 or 10, further comprising: in response to a pressurization instruction, controlling the valve to be in a closed state; in response to a bubbling instruction, controlling the valve to be in an open state, and the liquid in the extractor flows out from the liquid outlet.

12. The control method according to any one of claims 9 to 11, further comprising: in response to a cleaning instruction, in the case that the valve is in an open state, controlling the pressure boosting device to introduce gas into the extractor.

13. The control method according to any one of claims 9 to 12, wherein The preset pressure and the preset time length are determined based on the category of food materials in the extractor.

14. The control method according to any one of claims 9 to 13, wherein The preset pressure is greater than 0 bar and less than or equal to 20 bar, or the preset time length is greater than 0 min and less than or equal to 15 min.

15. The control method according to any one of claims 9 to 14, wherein The control of the pressure increasing device to introduce gas into the extractor until the pressure in the extractor reaches a preset pressure comprises: Controlling the target time length of the operation of the pressure increasing device or controlling the amount of gas introduced into the extractor to reach a target amount, so that the pressure in the extractor reaches a preset pressure.

16. A control device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, The processor implements the control method of the beverage making device according to any one of claims 9 to 15 when executing the program.

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