Coffee machine and milk foam generating system

Abstract

The utility model discloses a coffee machine and a milk foam generating system, the coffee machine comprises a coffee liquid generating module provided with a hot water inlet and a coffee liquid output port, a steam generating module provided with a water inlet and a steam output port, the water inlet is used for inputting water required for generating steam to the steam generating module, and the steam output port is used for outputting steam to the steam generating module. Steam generated by the steam generation module flows to the steam output port; the steam conveying pipeline is provided with a steam inlet and a steam outlet, and the steam inlet is connected with the steam output port; the movable tank body is used for containing milk, a communicating opening matched with the steam outlet is formed in the tank body, and when the communicating opening in the tank body is communicated with the steam outlet, steam flowing out of the steam outlet can flow into the tank body. Parts which are not easy to clean are directly omitted, a brand new structure is adopted for replacement, milk only makes contact with the tank containing the milk, and the problems that in the prior art, milk stains are difficult to clean and easy to remain, and the residual milk stains are easy to deteriorate, so that the user experience is affected can be well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage brewing equipment, and particularly relates to a coffee machine and a milk foam generation system. Background Art

[0002] A fully automatic coffee machine refers to a machine that can make a cup of coffee by simply pressing a button. The fully automatic coffee machine automatically realizes the whole process from grinding coffee beans to brewing coffee with hot water, and is favored by many families and enterprises.

[0003] Currently, many fully automatic coffee machines are integrated with a milk frothing function to meet the needs of users for the taste and ornamental value of coffee beverages. For a coffee machine integrated with a milk frothing function, it usually includes a milk tube. One end of the milk tube can pass through the refrigerator and access the milk in the refrigerator, and the other end extends into the container for milk frothing; the milk in the refrigerator can flow into the container for milk frothing through the milk tube. After use, the milk tube for circulating milk needs to be disassembled and manually cleaned regularly. However, since the milk tube is a tube body with a small aperture, it is easy to have residues when manually cleaned, that is, the inner surface is not easy to be cleaned. When the remaining milk adheres to the inner surface of the tube body, it will deteriorate after a certain period of time, resulting in excessive bacteria and generating odors.

[0004] In addition, for the above-mentioned coffee machine integrated with a milk frothing function, there may also be structures that need to contact milk, such as a water nozzle for milk output arranged at the end of the milk tube, an inhalation structure for sucking milk, etc. After the coffee machine is used for a certain period of time, these structures also need to be disassembled together with the milk tube for manual cleaning. These structures also have the above problems, that is, it is easy to have remaining milk stains on the inner surface and it is not easy to be cleaned. After long-term use, the remaining milk stains are easy to deteriorate, resulting in excessive bacteria and generating odors, which will affect the user experience.

[0005] Therefore, it is necessary to provide a coffee machine and a milk foam generation system to solve at least one of the above problems. Summary of the Utility Model

[0006] Aiming at the defects existing in the prior art, in the embodiments of the present utility model, a coffee machine and a milk foam generation system are provided. By directly canceling the parts that are not easy to clean and adopting a new structure for replacement, the milk only contacts the tank for holding it, which can preferably solve the problems in the prior art that milk stains are difficult to clean, easy to remain, and the remaining milk stains are easy to deteriorate and affect the user experience.

[0007] The specific technical solution of the embodiment of the present utility model is as follows:

[0008] A coffee machine, the coffee machine includes:

[0009] A coffee liquid generation module, the coffee liquid generation module having a hot water inlet and a coffee liquid outlet, and hot water input from the hot water inlet flows through coffee materials in the coffee liquid generation module to generate coffee liquid and flow to the coffee liquid outlet;

[0010] A steam generation module, the steam generation module having a water inlet and a steam outlet, the water inlet being used to input water required for generating steam into the steam generation module, and the steam generated by the steam generation module flowing to the steam outlet;

[0011] A steam delivery pipeline, the steam delivery pipeline having a steam inlet and a steam outlet, the steam inlet being connected to the steam outlet;

[0012] A movable tank for containing milk liquid, the tank having a communication port adapted to the steam outlet, and when the communication port on the tank is connected to the steam outlet, the steam flowing out of the steam outlet can flow into the tank.

[0013] In a preferred embodiment, the inner wall of the tank is a smooth surface or is provided with an easily cleanable coating.

[0014] In a preferred embodiment, the coffee machine has a working mode of simultaneously generating coffee liquid and steam. When the coffee machine enters the working mode of simultaneously generating coffee liquid and steam: the steam generation module inputs steam into the tank to heat the milk liquid to a predetermined temperature range, and the coffee liquid generation module generates a predetermined volume of coffee liquid.

[0015] In a preferred embodiment, when the coffee machine finishes preparing a predetermined volume of coffee liquid or before finishing preparing a predetermined volume of coffee liquid, the milk liquid is heated to a predetermined temperature range.

[0016] In a preferred embodiment, when the communication port of the tank containing milk liquid is connected to the steam outlet, the steam generation module can input steam for a preset duration into the tank to heat the milk liquid to a predetermined temperature range.

[0017] In a preferred embodiment, the tank is disposed inside or outside the housing of the coffee machine.

[0018] In a preferred embodiment, the steam outlet extends out of the housing of the coffee machine, and the tank is disposed outside the housing of the coffee machine.

[0019] In a preferred embodiment, a one-way conduction component is provided at the communication port of the tank, and the one-way conduction component is configured to prevent the milk liquid from flowing out of the communication port when the communication port of the tank is disconnected from or in a non-connected state with the steam outlet.

[0020] In a preferred embodiment, the one-way conduction component is configured such that when the communication port on the tank body is connected to the steam outlet, the one-way conduction component is opened or pushed open by the steam output from the steam outlet so that the steam flowing out from the steam outlet flows into the tank body.

[0021] In a preferred embodiment, the one-way conduction component includes any one of the following: one-way valve, solenoid valve.

[0022] In a preferred embodiment, the coffee machine further includes: a steam guiding component disposed downstream of the communication port of the tank body. When the one-way conduction component is opened or pushed open by the steam output from the steam outlet, the steam guiding component causes the steam to flow into the milk liquid in the tank body in a predetermined manner.

[0023] In a preferred embodiment, an air intake mechanism is connected to the steam delivery pipeline, and the air intake mechanism is used to mix a predetermined gas into the steam in the steam delivery pipeline.

[0024] In a preferred embodiment, the air intake mechanism includes a Venturi structure, which has an inlet end, an outlet end, and an air intake port. The inlet end and the outlet end are respectively connected to the steam delivery pipeline, and the air intake port is disposed at the throat section of the Venturi structure.

[0025] In a preferred embodiment, an air intake valve is disposed at or upstream of the air intake port, and the air intake valve is used to control the on / off of the passage of the predetermined gas into the steam delivery pipeline and / or the flow rate of the predetermined gas.

[0026] In a preferred embodiment, the tank body includes a bottom wall and a side wall, and the steam guiding component is disposed on the bottom wall and / or on the side wall close to the bottom wall.

[0027] In a preferred embodiment, the steam guiding component includes at least one nozzle, and the direction in which the nozzle ejects the fluid forms a predetermined angle with the radial direction of the tank body.

[0028] In a preferred embodiment, the steam guiding component is disposed on the bottom wall, and the distance from the nozzle to the center of the bottom wall is greater than the distance from the nozzle to the side wall.

[0029] In a preferred embodiment, the communication port is disposed opposite to the steam guiding component, and the steam guiding component is located inside the tank body and is an integral structure with the tank body.

[0030] In a preferred embodiment, the steam guide component includes a side wall and a top wall, the nozzle is arranged on the side wall of the steam guide component, and the top wall of the steam guide component is arranged opposite to the communication port.

[0031] In a preferred embodiment, the communication port and the steam outlet are sealed and matched in a detachable manner. When the communication port and the steam outlet are connected, the communication port and the steam outlet are sealed and matched.

[0032] In a preferred embodiment, the coffee machine further comprises a heating module, which is disposed upstream of the hot water inlet and is used to supply hot water to the coffee liquid generating module; the heating module can be connected to an external water source and / or a water tank disposed in the coffee machine.

[0033] In a preferred embodiment, the water inlet of the steam generation module is connected to the water tank and / or an external water source.

[0034] In a preferred embodiment, the coffee machine is further provided with a base adapted to the bottom wall of the tank body, and the steam outlet is provided on the base.

[0035] In a preferred embodiment, a first matching portion for matching with the steam outlet is provided on the base, and the steam outlet matches with the first matching portion in a detachable connection manner.

[0036] In a preferred embodiment, the base is provided with a second matching portion for matching with the bottom wall of the tank body, and the bottom wall of the tank body is provided with a docking portion corresponding to the second matching portion, and the docking portion and the second matching portion can be movably matched.

[0037] In a preferred embodiment, a one-way conductive component is provided at the connecting port of the tank body, and a third matching portion for matching with the one-way conductive component is provided on the base. When the tank body is installed in the base, the third matching portion can open the one-way conductive component.

[0038] In a preferred embodiment, the air inlet valve includes a regulating valve capable of adjusting the flow rate of the predetermined gas flowing into the steam delivery pipeline, and the coffee machine includes a controller, in which a plurality of coffee preparation modes are stored, and in different coffee preparation modes, the corresponding stored openings of the regulating valves are different.

[0039] In a preferred embodiment, the coffee machine further includes: a temperature detection component for detecting the temperature of the milk liquid in the tank; a controller electrically connected to the air inlet valve and the temperature detection component; when the coffee machine is in the first processing stage of foaming the milk liquid, and when the temperature detection component detects that the temperature of the milk liquid reaches a first preset temperature, the controller controls the air inlet valve to reduce the air intake or switch from the open state to the closed state.

[0040] In a preferred embodiment, the first preset temperature is 40 ± 5 degrees Celsius.

[0041] In a preferred embodiment, the coffee machine further includes a steam control valve provided on the steam delivery pipeline for controlling the on-off state between the steam generation module and the tank, and / or the steam flow rate output by the steam generation module.

[0042] In a preferred embodiment, the steam control valve is electrically connected to the controller. After the coffee machine switches from the first processing stage of foaming the milk liquid to the second processing stage of foaming the milk liquid, when the temperature detection component detects that the temperature of the milk liquid reaches a second preset temperature, the controller controls the steam control valve to switch from the open state to the closed state.

[0043] In a preferred embodiment, the second preset temperature is 60 ± 5 degrees Celsius.

[0044] In a preferred embodiment, the coffee machine has a coffee output port for discharging coffee. The coffee output port is disposed opposite to the tank, and the coffee flowing out from the coffee output port can flow into the milk liquid in the tank; or, the tank is disposed offset from the coffee output port, and the coffee flowing out from the coffee output port does not flow into the milk liquid in the tank.

[0045] A milk foam generation system, the milk foam generation system includes:

[0046] A steam generation module having a water inlet and a steam output port. The water inlet is used to input water required for generating steam into the steam generation module, and the steam generated by the steam generation module flows towards the steam output port;

[0047] A steam delivery pipeline having a steam inlet and a steam outlet. The steam inlet is connected to the steam output port;

[0048] An air intake mechanism connected to the steam delivery pipeline for mixing a predetermined gas into the steam in the steam delivery pipeline;

[0049] A tank body for containing milk liquid, with a communication port on the tank body adapted to the steam outlet. When the communication port on the tank body is connected to the steam outlet, the fluid flowing out of the steam outlet can flow into the tank body.

[0050] In a preferred embodiment, a one-way conduction component is provided at the communication port of the tank body. The one-way conduction component is configured to prevent the milk liquid from flowing out of the communication port when the communication port of the tank body is disconnected from or not in communication with the steam outlet.

[0051] In a preferred embodiment, the one-way conduction component is configured to be opened or pushed open by the steam output from the steam outlet when the communication port on the tank body is connected to the steam outlet, so that the steam flowing out of the steam outlet can flow into the tank body.

[0052] In a preferred embodiment, the one-way conduction component includes any one of the following: a one-way valve, a solenoid valve.

[0053] In a preferred embodiment, the milk foam generating system further includes: a steam guiding component provided downstream of the communication port of the tank body. When the one-way conduction component is opened or pushed open by the steam output from the steam outlet, the steam guiding component allows the steam to flow into the milk liquid in the tank body in a predetermined manner.

[0054] In a preferred embodiment, the air intake mechanism includes a Venturi structure having an inlet end, an outlet end, and an air intake port. The inlet end and the outlet end are respectively connected to the steam delivery pipeline, and the air intake port is provided at the throat section of the Venturi structure.

[0055] In a preferred embodiment, an air intake valve is provided at or upstream of the air intake port. The air intake valve is used to control the on / off of the passage of a predetermined gas into the steam delivery pipeline and / or the flow rate of the predetermined gas.

[0056] In a preferred embodiment, the tank body includes a bottom wall and a side wall, and the steam guiding component is provided on the bottom wall and / or on the side wall close to the bottom wall.

[0057] In a preferred embodiment, the steam guiding component includes at least one nozzle, and the direction of the fluid ejected from the nozzle forms a predetermined angle with the radial direction of the tank body.

[0058] In a preferred embodiment, the steam guiding component is provided on the bottom wall, and the distance from the nozzle to the center of the bottom wall is greater than the distance from the nozzle to the side wall.

[0059] In a preferred embodiment, the communication port is disposed opposite to the steam guiding member, and the steam guiding member is located inside the tank and is an integral structure with the tank.

[0060] In a preferred embodiment, the steam guiding member includes a side wall and a top wall. The nozzle is disposed on the side wall of the steam guiding member, and the top wall of the steam guiding member is disposed opposite to the communication port.

[0061] In a preferred embodiment, the communication port and the steam outlet are hermetically fitted in a detachable manner. When the communication port is connected to the steam outlet, the communication port and the steam outlet are hermetically fitted.

[0062] In a preferred embodiment, the milk foam generating system is further provided with a base adapted to the bottom wall of the tank, and the steam outlet is disposed on the base.

[0063] In a preferred embodiment, a first fitting portion adapted to the steam outlet is disposed on the base, and the steam outlet and the first fitting portion are fitted in a detachable connection manner.

[0064] In a preferred embodiment, a second fitting portion adapted to the bottom wall of the tank is disposed on the base, a docking portion adapted to the second fitting portion is disposed on the bottom wall of the tank, and the docking portion and the second fitting portion are movably fitted.

[0065] In a preferred embodiment, a one-way conduction member is disposed at the communication port of the tank, and a third fitting portion adapted to the one-way conduction member is disposed on the base. When the tank is loaded into the base, the third fitting portion can open the one-way conduction member.

[0066] In a preferred embodiment, the inner wall of the tank is a smooth surface or is provided with an easy-to-clean coating.

[0067] The technical solution of the present utility model has the following remarkable beneficial effects:

[0068] In the coffee machine provided in the embodiment of the present application, during the process of heating the milk liquid in the tank, or heating and whipping, only the tank is in contact with the milk liquid, and components including the steam delivery pipeline and other components communicated with the steam delivery pipeline (such as the air intake mechanism including the Venturi structure, etc.) are not in contact with the milk liquid. Compared with the prior art, components that are not easy to clean are directly eliminated, and the problems in the prior art that milk stains are difficult to clean, are easy to remain, and the remaining milk stains are easy to deteriorate and affect the user experience can be preferably solved. In addition, the tank in contact with the milk liquid itself can be moved and can be conveniently cleaned by the user separately later.

[0069] Specific embodiments of the present utility model are disclosed in detail with reference to the following description and accompanying drawings, indicating the ways in which the principles of the present utility model can be employed. It should be understood that the embodiments of the present utility model are not limited in scope thereby. Within the spirit and terms of the appended claims, the embodiments of the present utility model include many variations, modifications, and equivalents. Features described and / or illustrated for one embodiment can be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Description of the Drawings

[0070] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present utility model in any way. Additionally, the shapes and proportional dimensions of the various components in the drawings are merely illustrative and are used to assist in understanding the present utility model, rather than specifically defining the shapes and proportional dimensions of the various components of the present utility model. Those skilled in the art can, under the teachings of the present utility model, select various possible shapes and proportional dimensions according to specific circumstances to implement the present utility model.

[0071] Figure 1 Schematic structural diagram of a coffee machine provided in an embodiment of the present application;

[0072] Figure 2 Schematic structural diagram of a tank body of a coffee machine provided in an embodiment of the present application;

[0073] Figure 3 Top view of a tank body of a coffee machine provided in an embodiment of the present application;

[0074] Figure 4 Exploded view of a tank body of a coffee machine provided in an embodiment of the present application;

[0075] Figure 5 Cross-sectional view of a tank body of a coffee machine provided in an embodiment of the present application;

[0076] Figure 6 Schematic diagram of the first usage state of a tank body of a coffee machine provided in an embodiment of the present application;

[0077] Figure 7 Schematic diagram of the second usage state of a tank body of a coffee machine provided in an embodiment of the present application;

[0078] Figure 8 Schematic structural diagram of a milk foam generation system provided in an embodiment of the present application.

[0079] Reference numerals of the present application:

[0080] 100. Coffee liquid generation module;

[0081] 200. Steam generation module;

[0082] 300. Steam delivery pipeline;

[0083] 310. Steam outlet;

[0084] 320. Venturi structure;

[0085] 301. Intake valve;

[0086] 400. Tank body;

[0087] 401. Bottom wall;

[0088] 402. Side wall;

[0089] 403. Extension wall;

[0090] 410. Communication port;

[0091] 420. Check valve;

[0092] 430. Steam guiding component;

[0093] 431. Spray port;

[0094] 440. Base;

[0095] 441. Protrusion;

[0096] 451. First mating part;

[0097] 460. Connector;

[0098] 470. Sleeve;

[0099] 500. Housing;

[0100] 501. Coffee output port;

[0101] 510. Water receiving tray;

[0102] 610. Water tank;

[0103] 620. Water pump;

[0104] 630. Flowmeter;

[0105] 640. Heating module. Specific implementation mode

[0106] The technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the present utility model, various equivalent modifications made by those skilled in the art to the present utility model all fall within the scope defined by the appended claims of this application.

[0107] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0108] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0109] The present utility model provides a coffee machine and a milk foam generation system. By directly eliminating the parts that are not easy to clean and replacing them with a brand-new structure, the milk liquid only contacts the tank that holds it, which can preferably solve the problems in the prior art that milk stains are difficult to clean, easy to remain, and the remaining milk stains are prone to deterioration, affecting the user experience.

[0110] Please refer to comprehensively Figures 1 to 5, in the embodiment of the specification of the present application, a coffee machine is provided, which may include: a coffee liquid generation module 100 having a hot water inlet and a coffee liquid outlet, and the hot water input from the hot water inlet flows through the coffee material in the coffee liquid generation module 100 to generate coffee liquid and flow to the coffee liquid outlet; a steam generation module 200 having a water inlet and a steam outlet, the water inlet is used to input water required for generating steam into the steam generation module 200, and the steam generated by the steam generation module 200 flows to the steam outlet; a steam delivery pipeline 300 having a steam inlet and a steam outlet 310, and the steam inlet is connected to the steam outlet; a movable tank 400 for containing milk liquid, and the tank 400 has a communication port 410 adapted to the steam outlet 310. When the communication port 410 on the tank 400 is connected to the steam outlet 310, the steam flowing out from the steam outlet 310 can flow into the tank 400.

[0111] In the embodiment of the present application, during the use of the coffee machine, only the tank 400 is in contact with the milk liquid, and components including the steam delivery pipeline 300 and other components connected to the steam delivery pipeline 300 are not in contact with the milk liquid. Compared with the prior art, components such as milk pipes that are not easy to clean are directly eliminated, and the problems in the prior art that milk stains are difficult to clean, easy to remain, and the remaining milk stains are prone to deterioration and affect the user experience can be better solved. In addition, the tank 400 in contact with the milk liquid itself can be moved and can be conveniently cleaned separately by the user later.

[0112] The following will be described in detail with reference to the drawings and embodiments.

[0113] As Figure 1 shown, the coffee machine mainly includes: a coffee liquid generation module 100, a steam generation module 200, a steam delivery pipeline 300, a tank 400, etc.

[0114] Among them, the coffee liquid generation module 100 is used to generate coffee liquid. Specifically, it may include a hot water inlet, a coffee liquid outlet, and a grinding mechanism for grinding coffee beans into coffee powder; a pressing mechanism for pressing the coffee powder into a coffee powder cake, and a brewing chamber for brewing the coffee powder cake, and the brewing chamber is connected to the above-mentioned hot water inlet and coffee liquid outlet. Of course, the specific structure, composition, etc. of the coffee liquid generation module 100 are not limited to the above examples, and it may also include configurations included in other fully automatic coffee machines in the prior art.

[0115] In this embodiment, the hot water inlet can be directly connected to an external hot water source. For example, the hot water inlet can be connected to a water purifier, and the water purifier directly provides the hot water required for brewing coffee to the hot water inlet.

[0116] Alternatively, the coffee machine may further include a heating module 640 disposed upstream of the hot water inlet for supplying hot water to the coffee liquid generating module 100. The heating module 640 can be connected to an external water source and / or a water tank 610 disposed inside the coffee machine.

[0117] When the coffee machine is provided with the heating module 640, the heating module 640 can be used to heat the water flowing into it. In addition, the coffee machine may further be provided with a water tank 610 connected to the heating module 640 to supply water to the heating module 640. A control valve may be provided at or downstream of the outlet of the water tank 610. When the control valve is opened, the water in the water tank 610 can flow into the heating module 640. Of course, for an embodiment without the water tank 610, the heating module 640 can be connected to an external water source to supply water to it.

[0118] Specifically, the heating module 640 can be an instant heating mechanism, for example, it can be in the form of a heating plate. Of course, this application does not exclude that the heating module 640 is a storage type heating mechanism, for example, a certain volume of water storage tank can be provided inside it.

[0119] When hot water is needed, at least one of the external water source and the water tank 610 inside the coffee machine is connected to the heating module 640 to supply water to the heating module 640. The heating plate raises the water flowing through it to a predetermined temperature and provides it to the coffee liquid generating module 100.

[0120] In one embodiment, for a coffee machine with a hot water function, a three-way switching valve may be provided at the outlet of the heating module 640. The three-way switching valve includes a first interface connected to the outlet of the heating module 640, a second interface connected to the coffee liquid generating module 100, and a third interface connected to the hot water waterway. When the user needs to use the hot water function of the coffee machine, the first interface and the third interface can be connected through the three-way switching valve to output hot water to the user at the end of the hot water waterway.

[0121] In one embodiment, a three-way switching valve may be provided on the coffee pipe between the coffee liquid generating module 100 and the coffee outlet 501 for discharging coffee, two interfaces of the three-way switching valve are connected to the coffee pipe, and the third interface is connected to an emptying pipeline, and an emptying pump is provided on the emptying pipeline, and the end of the emptying pipeline may be connected to a water collecting box or other location where drainage can be achieved. When in use, before discharging coffee liquid, the coffee pipe is first filled with hot water to avoid a large amount of air in the pipeline causing a large amount of bubbles in the coffee; after the coffee liquid is discharged, the emptying pump may be started to suck away the coffee remaining in the coffee pipe to achieve emptying.

[0122] The steam generating module 200 is used to heat water so that it is converted from a liquid state to a steam state. The steam generating module 200 includes a water inlet, which is used to input water required for generating steam into the steam generating module 200; a steam generating unit, which is used to heat the water flowing into the water inlet to a steam state; and a steam output port, which is used to output the water vapor heated to a steam state by the steam generating unit. Specifically, the steam generating unit can be in the form of a steam pan, and after water flows into the steam pan, it is heated and evaporated by the steam pan to form water vapor. Of course, the specific form of the steam generating unit is not limited to the above examples, and the present application does not make the sole limitation here.

[0123] In one embodiment, the water inlet of the steam generating module 200 is connected to the water tank 610 and / or an external water source.

[0124] In this embodiment, the water inlet of the steam generation module 200 can be connected to at least one of the water tank 610 and the external water source. For example, the water inlet of the steam generation module 200 and the water inlet of the heating module 640 can be connected to the outlet of the water tank 610 through a tee, and components such as a flow meter 630 and a water pump 620 can be provided on the pipeline between the outlet of the water tank 610 and the tee. The flow meter 630 can be used to obtain the amount of water supplied from the water tank 610 to the steam generation module 200 or the heating module 640, and the water pump 620 can be used to pump water out of the water tank 610 and supply it to the steam generation module 200 or the heating module 640.

[0125] The steam delivery pipeline 300 is used to guide the steam generated by the steam generating module 200 to the tank 400. The steam delivery pipeline 300 as a whole may include a hollow pipe body, and the steam delivery pipeline 300 has a steam inlet and a steam outlet 310, wherein the steam inlet is connected to the steam outlet for receiving the steam outputted from the steam outlet.

[0126] A bypass branch may also be provided on the steam delivery pipeline 300, and the bypass branch can be used to relieve the pressure of the steam in the steam delivery pipeline 300 to a water collection box or other positions where steam can be collected or discharged. The connection position between the bypass branch and the steam delivery pipeline 300 can be connected through a switching valve.

[0127] In one embodiment, an air intake mechanism is connected to the steam delivery pipeline 300, and the air intake mechanism is used to mix a predetermined gas into the steam in the steam delivery pipeline 300.

[0128] In this embodiment, an air intake mechanism can be connected in the steam delivery pipeline 300, and the air intake mechanism can be used to mix a predetermined gas into the steam in the steam delivery pipeline 300. Among them, the predetermined gas can specifically be air. Of course, the predetermined gas can also be other gases that can be mixed into coffee, such as carbon dioxide, etc. In the embodiments of the present application, mainly the air with the lowest cost is taken as an example for illustration.

[0129] Furthermore, the air intake mechanism may include a Venturi structure 320. The Venturi structure 320 has an inlet end, an outlet end, and an air intake. The inlet end and the outlet end are respectively connected to the steam delivery pipeline 300, and the air intake is arranged in the throat section of the Venturi structure 320.

[0130] In this embodiment, the air intake mechanism can be a Venturi structure 320. For the Venturi structure 320, its inlet end and outlet end are respectively connected to the steam delivery pipeline 300. When steam flows through the steam delivery pipeline 300, a negative pressure can be generated in the throat section with the smallest diameter, so as to suck air into the Venturi structure 320 and then mix it into the steam.

[0131] Furthermore, an intake valve 301 is provided at or upstream of the air intake. The intake valve 301 is used to control the on / off of the passage of the predetermined gas into the steam delivery pipeline 300 and / or the flow rate of the predetermined gas.

[0132] In order to accurately control the on / off of the air flowing into the air intake of the Venturi and / or the amount flowing in, an intake valve 301 is provided at or upstream of the air intake. For example, an intake branch can be connected at the air intake. The intake valve 301 can be arranged in the intake branch. The intake valve 301 can specifically be a on / off valve that can control the on / off of the gas, or can be a regulating valve that can adjust the gas flow rate.

[0133] On this intake air branch, specifically, a filtering mechanism may also be provided upstream of the intake valve 301. This filtering mechanism is used to purify and filter the air, improve the cleanliness of the air mixed into the steam, and at the same time prevent impurities in the air from clogging structures such as the intake valve 301 and the Venturi, thereby affecting the reliability of the coffee machine. Specifically, the form of this filtering mechanism may include various types and their combinations. Specifically, this application does not make a unique limitation here.

[0134] The tank body 400 can be used to hold milk liquid. Specifically, the shape, structure, material, etc. of this tank body 400 are not specifically limited in this application. For example, the tank body 400 can be a cylindrical shape with one end open, and an operating part, such as a handle, can be provided on the side wall 402 of the tank body 400 to facilitate the user to hold it for operations such as pouring and cleaning. In addition to holding milk liquid, the tank body 400 does not rule out that the user can hold other materials (such as fruit juice, tea drinks, etc.) in the tank body 400 according to their actual needs, or use the tank body 400 for other purposes.

[0135] In this embodiment, the tank body 400 is a relatively movable structure relative to the housing 500 of the coffee machine, so as to facilitate the user to operate the tank body 400 flexibly according to actual needs, and at the same time facilitate subsequent operations such as cleaning the tank body 400.

[0136] In one embodiment, the inner wall of the tank body 400 is a smooth surface or is provided with an easy-to-clean coating.

[0137] In this embodiment, in order to facilitate the efficient and residue-free cleaning of the tank body 400 in contact with the milk liquid, the inner wall of the tank body 400 can be set as a smooth surface or provided with an easy-to-clean coating.

[0138] For example, when the inner wall of the tank body 400 is a smooth surface, its smoothness can reach a roughness Ra less than 0.8 microns, and the surface finish grade can reach above ▽12. Of course, the smoothness of the inner wall surface of the tank body 400 can also be described by other quantitative or qualitative methods, and this application does not make specific limitations here.

[0139] When the inner wall of the tank body 400 is provided with an easy-to-clean coating, specifically, the easy-to-clean coating can be a fluoropolymer coating, a ceramic coating, an enamel coating, a silicone coating, etc. Of course, the specific form of the easy-to-clean coating can also be other forms, not limited to the above description. Those skilled in the art may make other changes under the inspiration of the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should all be covered within the protection scope of this application.

[0140] Among them, the tank body 400 can be arranged inside or outside the housing 500 of the coffee machine. When the tank body 400 is arranged inside the housing 500 of the coffee machine, the housing 500 can be provided with an open or semi-open area for accommodating the tank body 400. For example, it has an accommodating space with an opening, and the tank body 400 can be located inside the accommodating space; alternatively, a movable door that can be opened and closed can be arranged at the opening of the accommodating space. When the milk liquid in the tank body 400 is being heated or whipped, the door can be in a closed state to prevent the external environment from polluting the milk liquid in the tank body 400. Or, for example, the tank body 400 can be arranged in the area of the water receiving box 510 of the coffee machine. In the area of the water receiving box 510, it is convenient for the user to visually observe the whipping situation of the milk liquid in the tank body 400. Or, the tank body 400 can be arranged outside the housing 500 of the coffee machine, and the tank body 400 can be in partial contact with the housing 500 of the coffee machine or not in contact with the housing 500 of the coffee machine at all. Of course, when the tank body 400 is arranged outside the housing 500 of the coffee machine, its specific installation position is not specifically limited in this application.

[0141] In one embodiment, the steam outlet 310 extends out of the housing 500 of the coffee machine, and the tank body 400 is arranged outside the housing 500 of the coffee machine.

[0142] In this embodiment, when the tank body 400 is arranged outside the housing 500 of the coffee machine, the tank body 400 can be only connected to the steam outlet 310 that extends out of the housing 500 of the coffee machine. Among them, the steam outlet 310 can be located at a certain position of the housing 500. For example, the steam outlet 310 can be located at the water receiving box 510 of the coffee machine. When the tank body 400 is docked with the steam outlet 310, it is generally also located in the area of the water receiving box 510, so as to facilitate the user to operate here. Of course, the specific position of the steam outlet 310 on the housing 500 of the coffee machine is not limited to the above examples, and it can also be adaptively adjusted according to different user operation habits, the structure of the housing 500 of the coffee machine, etc.

[0143] Please refer to Figure 6 and Figure 7 , in one embodiment, the coffee machine has a coffee outlet 501 for flowing out coffee, and the coffee outlet 501 is arranged opposite to the tank body 400, and the coffee flowing out from the coffee outlet 501 can flow into the milk liquid in the tank body 400; or, the tank body 400 is arranged offset from the coffee outlet 501, and the coffee flowing out from the coffee outlet 501 does not flow into the milk liquid in the tank body 400.

[0144] In this embodiment, with different positions of the tank body 400, the functions it realizes can be different. For example, asFigure 7 As shown, in one scenario, the coffee outlet 501 is arranged directly opposite to the tank body 400, so that the coffee flowing out of the coffee outlet 501 can flow into the milk liquid in the tank body 400, thereby obtaining a cup of coffee with milk liquid, eliminating the step of mixing the milk liquid and coffee. In addition, since the tank body 400 is separable from the housing 500 of the coffee machine, the tank body 400 can be directly used as a coffee cup and used by the user.

[0145] As Figure 6 shown, in another scenario, the coffee outlet 501 is arranged out of alignment with the tank body 400, that is, the coffee flowing out of the coffee outlet 501 flows into the coffee cup directly opposite to it, and the milk liquid in the tank body 400 is heated and whipped separately. Subsequently, according to the user's needs, a predetermined amount of the heated and whipped milk liquid can be added to the coffee liquid.

[0146] In the present embodiment, the tank body 400 is provided with a communication port 410 adapted to the steam outlet 310. The communication port 410 can be opened when steam needs to flow into the tank body 400, so that the communication port 410 on the tank body 400 is connected to the steam outlet 310, so that the steam flowing out of the steam outlet 310 can flow into the tank body 400. When the high-temperature steam flows into the milk liquid in the tank body 400, it can heat up the milk liquid in the tank body 400; especially when a certain amount of air is mixed in the steam, while heating up the milk liquid in the tank body 400, it can also efficiently whip the milk liquid to form milk foam.

[0147] In the coffee machine provided in the embodiment of the present application, during the process of heating up, or heating up and whipping, the milk liquid in the tank body 400, only the tank body 400 is in contact with the milk liquid, while the steam delivery pipeline 300 and other components connected to the steam delivery pipeline 300 (such as the air intake mechanism including the Venturi structure 320, etc.) are not in contact with the milk liquid. Compared with the prior art, the components that are not easy to clean are directly eliminated, which can preferably solve the problems in the prior art that milk stains are difficult to clean, easy to remain, and the remaining milk stains are easy to deteriorate and affect the user experience. In addition, the tank body 400 in contact with the milk liquid itself can be moved and can be conveniently cleaned by the user separately later.

[0148] Among them, the tank body 400 can be moved, indicating that the tank body 400 itself is not fixedly arranged. For example, the tank body 400 can only be in contact with the housing 500 of the coffee machine or other positions, or simply be snap-fitted or plugged in for positioning. When the user needs to move the tank body 400 later, the tank body 400 can be conveniently moved. Of course, it should be noted that in some other embodiments, it is not excluded that the tank body 400 cannot be simply moved. For example, the tank body 400 can be fixed on the housing 500 of the coffee machine or inside the housing 500. For the above situation, the self-cleaning mode of the machine can be adopted for the tank body 400 that is easy to be cleaned for cleaning.

[0149] Furthermore, a one-way conduction component is provided at the communication port 410 of the tank body 400. The one-way conduction component is configured to prevent the milk liquid from flowing out of the communication port 410 when the communication port 410 of the tank body 400 is disconnected from or in a non-connected state with the steam outlet 310.

[0150] In this embodiment, by providing a one-way conduction component at the communication port 410 of the tank body 400, it is possible to prevent the milk liquid from flowing into the steam delivery pipeline 300 from the communication port 410 of the tank body 400, thereby reliably ensuring that components with a small flow cross-section that are difficult to be cleaned (such as the steam delivery pipeline 300 and other components connected to the steam delivery pipeline 300) will not come into contact with the milk liquid.

[0151] Specifically, the one-way conduction component can be configured to prevent the milk liquid from flowing out of the communication port 410 when the communication port 410 of the tank body 400 is disconnected from or in a non-connected state with the steam outlet 310; when the communication port 410 on the tank body 400 is connected to the steam outlet 310, the one-way conduction component is opened or pushed open by the steam output from the steam outlet 310 so that the steam flowing out of the steam outlet 310 flows into the tank body 400.

[0152] In this embodiment, the on-off control of the one-way conduction component may include one or a combination of various forms. For example, the on-off control of the one-way conduction component may be controlled by steam pressure. When the steam outlet 310 outputs pressurized steam, the pressure of the steam can be used to switch the one-way conduction component from a disconnected or non-connected state to an open or connected state; alternatively, the on-off control of the one-way conduction component may be achieved by the internal structure of the one-way conduction component or the cooperation between the one-way conduction component and the steam outlet 310. For example, when the on-off control of the one-way conduction component is achieved through the cooperation between the one-way conduction component and the steam outlet 310, when the tank body 400 comes into contact with the steam outlet 310, it can cause the one-way conduction component to conduct or generate a force that causes the one-way conduction component to conduct, and in cooperation with the above-mentioned steam pressure, the one-way conduction component can be made to conduct; when the tank body 400 is separated from the steam outlet 310, the one-way conduction component can be in a non-conducting state.

[0153] Among them, the one-way conduction component may include any one of the following: a one-way valve 420, a solenoid valve. Of course, the specific form of the one-way conduction component is not limited to the above description. Those skilled in the art may make other changes under the inspiration of the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should all be covered within the protection scope of this application.

[0154] When the one-way conduction component is a one-way valve 420, the one-way valve 420 does not need to be connected to the controller of the coffee machine. It can achieve the control of the one-way conduction function from the side of the steam outlet 310 to the side of the tank body 400 only under the action of the steam pressure and / or the mechanical cooperation relationship with the steam outlet 310. When the one-way conduction component is in the form of a solenoid valve, it can be electrically connected to the controller of the coffee machine, and the controller can control the on-off of the solenoid valve to accurately perform on-off control. Overall, by setting the above-mentioned one-way conduction component, it can more reliably ensure that the milk liquid in the tank body 400 does not come into contact with other components except the tank body 400.

[0155] In this embodiment, the coffee liquid generation module 100 and the steam generation module 200 in the coffee machine can be turned on separately or synchronously. For example, when it is necessary to heat the milk liquid, the steam generation module 200 can be started. The steam generation module 200 heats water into steam. When the communication port 410 of the tank body 400 containing the milk liquid is connected to the steam outlet 310, the steam generation module 200 inputs steam for a preset duration into the tank body 400 to heat the milk liquid to a predetermined temperature range.

[0156] The coffee machine has a working mode of synchronously generating coffee liquid and steam. When the coffee machine enters the working mode of synchronously generating coffee liquid and steam: the steam generating module 200 inputs steam into the tank body 400 to heat the milk liquid to a predetermined temperature range, and the coffee liquid generating module 100 generates a predetermined volume of coffee liquid.

[0157] This coffee machine can use the coffee liquid generating module 100 to generate coffee liquid, and at the same time can use the steam generating module 200 to generate steam. After the working mode of synchronously generating coffee liquid and steam of the coffee machine is started, the steam generated by the steam generating module 200 can be fed into the milk liquid in the tank body 400, so as to heat the milk liquid to a predetermined temperature range; synchronously, the coffee liquid generating module 100 can generate a predetermined volume of coffee liquid and supply it to the user. Among them, the predetermined temperature range to which the milk liquid is heated can be comprehensively regulated according to parameters such as the temperature of the steam, the flow rate of the steam, and the time for introducing steam into the milk liquid. The specific value of this predetermined temperature range is not limited in this application. The volume of the coffee liquid can also be adaptively selected according to the needs of the user. For example, it can be personalized according to the volume of coffee liquid required by the user at one time. The specific value of the predetermined volume of the coffee liquid is also not limited in this application.

[0158] Further, in the working mode of synchronously generating coffee liquid and steam, when the coffee machine finishes preparing a predetermined volume of coffee liquid or before finishing preparing a predetermined volume of coffee liquid, the milk liquid is heated to a predetermined temperature range.

[0159] That is to say, when the milk liquid is heated to a predetermined temperature range, a predetermined volume of coffee liquid can be just prepared, or the predetermined volume of coffee liquid can be in the process of being made. For coffee liquid, it needs to go through processes such as coffee bean grinding during production, which is relatively time-consuming. Especially for a relatively large volume of coffee liquid to be taken, the production process is relatively long. At this time, when the milk liquid is heated to a predetermined temperature range, the coffee liquid can be in the process of being made.

[0160] Of course, in the embodiments of the present application, it is not limited to the above examples. For example, the coffee machine can pre-start the coffee liquid generating module 100, and then, in combination with the time required for the milk liquid to be heated to a predetermined temperature range, control the time for finishing preparing a predetermined volume of coffee liquid before, when, or after the milk liquid is heated to a predetermined temperature range.

[0161] Please refer to Figures 2 to 5, in one embodiment, the coffee machine may further include: a steam guiding member 430 disposed downstream of the communication port 410 of the tank body 400. When the one-way conducting member is opened or pushed open by the steam output from the steam outlet 310, the steam guiding member 430 causes the steam to flow into the milk liquid in the tank body 400 in a predetermined manner.

[0162] In this embodiment, a steam guiding member 430 may also be disposed downstream of the communication port 410 of the tank body 400. The steam guiding member 430 is configured to introduce steam into the milk liquid in a predetermined manner when the one-way conducting member is in a communicating state, so as to drive at least a part of the milk liquid to perform a swirling motion, thereby enabling the steam and the milk liquid to be uniformly mixed, and at the same time facilitating the full mixing of the milk foam and the milk liquid.

[0163] As Figure 2 shown, wherein, the tank body 400 may include a bottom wall 401 and a side wall 402, and the steam guiding member 430 is disposed on the bottom wall 401 and / or on the side wall 402 close to the bottom wall 401. When the steam guiding member 430 is disposed on the bottom wall 401 of the tank body 400 or on the side wall 402 close to the bottom wall 401, without providing a member extending into the milk liquid, the steam flowing out from the steam guiding member 430 can generate a relatively large disturbance to the entire milk liquid in the height direction from bottom to top, so that the milk liquid in the tank body 400 can be uniformly heated, and in addition, it is also beneficial to generate uniform milk foam in the milk liquid.

[0164] As Figure 3 shown, in a specific embodiment, the steam guiding member 430 includes at least one nozzle 431, and the direction in which the nozzle 431 ejects the fluid forms a predetermined angle with the radial direction of the tank body 400.

[0165] In this embodiment, the steam guiding member 430 may be an integral hollow cover body. For example, the steam guiding member 430 includes a side wall 402 and a top wall. Wherein, the steam guiding member 430 may be disposed on the bottom wall 401. When the steam guiding member 430 is located on the bottom wall 401, the communication port 410 may be disposed opposite to the steam guiding member 430. Specifically, the top wall of the steam guiding member 430 is disposed opposite to the communication port 410. Such a setting can ensure that the steam introduced from the communication port 410 can directly and efficiently lead to the steam guiding member 430.

[0166] The top wall of the steam guiding member 430 may be located inside the tank body 400, and the side wall of the steam guiding member 430 may be at least partially located in the tank body 400. For example, please refer to Figure 4 and Figure 5, a part of the side wall of the steam guiding member 430 can be located in the tank body 400, and another part can extend out of the bottom wall 401 of the tank body 400 and be located outside the tank body 400. The steam guiding member 430 can be detachably connected to the bottom wall 401 of the tank body 400, so as to facilitate the separate disassembly and cleaning of the steam guiding member 430 and the tank body 400. Among them, the detachable connection method can be a threaded connection. For example, an external thread can be provided on the outer surface of the side wall of the steam guiding member 430 extending out of the bottom wall 401 of the tank body 400, and by matching with the external thread of the steam guiding member 430 through a connecting member 460 (such as a nut) provided with an internal thread, the steam guiding member 430 can be fixed on the bottom wall 401 of the tank body 400. Further, when the steam guiding member 430 is detachably fixed on the bottom wall 401 of the tank body 400 through the connecting member 460, in order to ensure the sealing performance of the matching position of the tank body 400, the steam guiding member 430 and the connecting member 460 and prevent the milk liquid in the tank body 400 from leaking out from the matching position, the tank body 400 can further include a sealing ring, and the sealing ring can be specifically arranged between the connecting member 460 and the bottom wall 401 of the tank body 400. For example, a groove can be provided on the top surface of the connecting member 460, and the sealing ring can be installed in the groove by an interference fit manner, so that when the connecting member 460 is connected to the steam guiding member 430, a better sealing effect can be achieved.

[0167] Alternatively, the steam guiding member 430 can be located inside the tank body 400 and be an integral structure with the tank body 400, so that without setting a sealing member between the steam guiding member 430 and the tank body 400, the milk liquid will not flow out through the matching position between the steam guiding member 430 and the tank body 400. Overall, while ensuring the sealing performance, the structure can be simplified and the assembly steps can be reduced.

[0168] Among them, the steam guiding member 430 includes at least one nozzle 431. As Figure 4 shown, specifically, the nozzle 431 is arranged on the side wall of the steam guiding member 430, and the number of the nozzles 431 can be multiple, and the multiple nozzles 431 can be arranged at intervals along the height direction. Among them, the size of the aperture of the nozzle 431 can be comprehensively determined according to factors such as the pressure of the steam moving to the nozzle 431, and the present application does not make specific limitations here. The direction of the fluid ejected from the nozzle 431 forms a predetermined angle with the radial direction of the tank body 400. Specifically, the predetermined angle can be a relatively large acute angle. For example, the predetermined angle can be relatively close to 90°, so that the fluid ejected from the nozzle 431 can be ejected tangentially along the contour of the side wall 402 of the tank body 400, and then efficiently drive the milk liquid in the tank body 400 to perform a swirling motion.

[0169] AsFigure 3 As shown, in one embodiment, the steam guiding member 430 is disposed on the bottom wall 401, and the distance H1 from the nozzle 431 to the center of the bottom wall 401 is greater than the distance H2 from the nozzle 431 to the side wall 402.

[0170] In this embodiment, when the steam guiding member 430 is disposed on the bottom wall 401, the nozzle 431 of the steam guiding member 430 is disposed closer to the side wall 402 relative to the center of the bottom wall 401. In this way, the steam ejected from the nozzle 431 can act more effectively on more milk liquid in the tank body 400, so that the milk liquid in the tank body 400 performs a swirling motion efficiently from the outside to the inside.

[0171] In one embodiment, the communication port 410 and the steam outlet 310 are sealingly fitted in a detachable manner. When the communication port 410 is connected to the steam outlet 310, the communication port 410 and the steam outlet 310 are sealingly fitted.

[0172] In this embodiment, the communication port 410 and the steam outlet 310 can be fitted in a detachable manner. Specifically, the detachable manner can be an internal and external socketing manner by plugging and unplugging. For example, the communication port 410 can be sleeved around the steam outlet 310 or inserted into the inside of the steam outlet 310. When disassembly is required, the communication port 410 and the steam outlet 310 can be directly separated by plugging and unplugging. Further, in order to ensure the sealing performance of the fitting position between the communication port 410 and the steam outlet 310, after the communication port 410 and the steam outlet 310 are docked, the two can also achieve sealing at the same time. Specifically, taking the communication port 410 sleeved around the steam outlet 310 as an example, a sealing member can be provided at a position on the periphery of the steam outlet 310 facing the communication port 410. When the communication port 410 is docked with the steam outlet 310, the communication port 410 can abut against the sealing member, thereby achieving the sealing fit between the communication port 410 and the steam outlet 310.

[0173] Specifically, a sleeve 470 with a predetermined height can be provided inside the steam guiding member 430. The valve core of the check valve 420 is disposed inside the sleeve 470, that is, the sleeve 470 can be used as the valve sleeve of the check valve 420. The upper end of the sleeve 470 abuts against a step formed by the inner side wall 402 of the steam guiding member 430. A sealing member can also be provided between the upper portion of the sleeve 470 and the inner side wall 402 of the steam guiding member 430, and the sealing member is used for sealing to ensure that fluid (steam, steam mixed with air, etc.) will not leak from the fitting position of the two. The lower end of the sleeve 470 can be used to form the communication port 410.

[0174] Please refer to Figure 2 、Figure 4 and Figure 5 In some embodiments, the coffee machine is further provided with a base 440 adapted to the bottom wall 401 of the tank body 400 , and the steam outlet 310 is provided on the base 440 .

[0175] In this embodiment, the coffee machine may further include a base 440, which is used to set the steam outlet 310 on one hand, and can be used to receive the tank body 400 and its connecting port 410 on the other hand. The overall outer contour structure of the base 440 can be adapted to the bottom wall 401 structure of the tank body 400. For example, when the bottom wall 401 is circular, the overall outer contour of the base 440 can be cylindrical. Of course, the specific outer contour structure of the base 440 is not limited to the present application.

[0176] Furthermore, a first matching portion 451 for matching with the steam outlet 310 is provided on the base 440 , and the steam outlet 310 matches with the first matching portion 451 in a detachable connection manner.

[0177] In this embodiment, a first matching portion 451 may be provided at a position on the base 440 that is directly opposite to the connecting port 410, and the specific structure of the first matching portion 451 may match the steam outlet 310. The first matching portion 451 and the steam outlet 310 may be matched by a detachable connection. Specifically, the detachable connection may be a plug-in connection. For example, the first matching portion 451 of the base 440 may be a plug interface, and the steam outlet 310 may specifically include a joint provided with an opening, and the joint is inserted into the plug interface, and the two are matched, and the steam outlet 310 can be reliably constrained at the first matching portion 451 of the base 440.

[0178] Of course, the specific matching relationship and method between the steam outlet 310 and the first matching part 451 on the base 440 can also be other methods. Technical personnel in the relevant field may make other changes inspired by the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should be covered within the scope of protection of this application.

[0179] In one embodiment, the base 440 is provided with a second matching portion for matching with the bottom wall 401 of the tank body 400, and the bottom wall 401 of the tank body 400 is provided with a docking portion that is opposite to the second matching portion, and the docking portion and the second matching portion can be movably matched.

[0180] In this embodiment, the base 440 and the tank body 400 can be movably fitted through a docking portion and a second mating portion. Specifically, a ring-shaped extension wall 403 is provided downward on the bottom wall 401 of the tank body 400. The extension portion is used to form the docking portion. A convex portion 441 adapted to the above-mentioned extension wall 403 can be provided on the upper surface of the base 440. The convex portion 441 is used to form the second mating portion. The convex portion 441 can extend into the cavity surrounded by the extension wall 403. The cooperation between the extension wall 403 and the convex portion 441 can not only play a guiding role when the tank body 400 is fitted with the base 440, but also position the tank body 400 after the tank body 400 and the base 440 are assembled in place. Of course, the specific forms of the second mating portion and the docking portion are not limited to the above examples, and the present application does not make a unique limitation here.

[0181] In one embodiment, a one-way conduction component is provided at the communication port 410 of the tank body 400, and a third mating portion for mating with the one-way conduction component is provided on the base 440. When the tank body 400 is loaded into the base 440, the third mating portion can open the one-way conduction component.

[0182] In this embodiment, the one-way conduction component is exemplified by a one-way valve 420. As Figure 5 shown, the steam guiding component 430 cooperates with the communication port 410 (such as the sleeve 470 exemplified in the above embodiment) to form a valve sleeve. A valve core is provided in the valve body, and the valve core and the valve sleeve cooperate to form a one-way conduction component. In the Figure 5 orientation shown, when an upward force is applied to the one-way conduction component and the force reaches a predetermined value, the one-way conduction component can be conducted. The ways of applying the above-mentioned force to the one-way conduction component can include any one or a combination of the following: the pressure of fluid (steam), the mechanical operating force directly contacting the valve core, etc.

[0183] In this embodiment, the tank body 400 and the base 440 can be cleverly designed. For example, a third mating portion adapted to the valve core of the above-mentioned one-way conduction component can be provided on the base 440. Specifically, the third mating portion can be a convex portion 441 facing the valve core. When the tank body 400 is loaded into the base 440, the third mating portion can contact the valve core and apply an upward force to the valve core, so that the force of abutment between the valve core and the valve sleeve is reduced or even disappears, so as to facilitate opening the one-way conduction component. Furthermore, the pressurized steam can flow into the tank body 400 from bottom to top through the one-way conduction component. Compared with the embodiment of only opening the one-way conduction component by the pressure of the pressurized steam, it can reliably ensure that the one-way conduction component is opened, and at the same time, the pressure requirement for the pressurized steam can be greatly reduced.

[0184] In one embodiment, the intake valve 301 may include a regulating valve capable of regulating the flow rate of the predetermined gas flowing into the steam delivery pipeline 300. The coffee machine includes a controller in which a variety of coffee preparation modes are stored. Under different coffee preparation modes, the opening degrees of the regulating valve stored correspondingly are different.

[0185] In this embodiment, the intake valve 301 may specifically be in the form of a regulating valve with an adjustable opening degree. The coffee machine may include a controller in which a variety of coffee preparation modes are stored. Different coffee types (such as American coffee, latte, cappuccino, mocha, macchiato, etc.) can be prepared under each different coffee preparation mode, so that coffees with different tastes can be obtained correspondingly. Specifically, for different coffee types, the requirements for the content of the milk liquid and the proportion of bubbles in the milk liquid are different. In the embodiment of the present application, by effectively controlling the on-off duration of the gas, the flow rate of the gas, etc., the production requirements of different coffee types can be met.

[0186] In some embodiments, the coffee machine may further include: a temperature detection component for detecting the temperature of the milk liquid in the tank body 400; a controller electrically connected to the intake valve 301 and the temperature detection component; when the coffee machine is in the first processing stage of whipping the milk liquid, when the temperature detection component detects that the temperature of the milk liquid reaches a first preset temperature, the controller controls the intake valve 301 to reduce the intake air volume or switch from the open state to the closed state.

[0187] In this embodiment, the coffee machine may further include a temperature detection component for detecting the temperature of the milk liquid in the tank body 400. The temperature detection component may be arranged on the outer surface of the bottom wall 401 of the tank body 400, so that the temperature detection component can accurately obtain the temperature of the milk liquid without contacting the milk liquid. In addition, the temperature detection component arranged on the outer surface of the bottom wall 401 of the tank body 400 can also take into account the aesthetic requirements of the tank body 400.

[0188] In this embodiment, the first processing stage of whipping the milk liquid mainly refers to the foaming process of obtaining sufficient bubbles before the first preset temperature. Wherein, the first preset temperature is 40 ± 5 degrees Celsius. When the milk liquid is before the first preset temperature, the proteins and fats in the milk liquid have not reacted yet. This first processing stage can be utilized to gradually stretch the proteins and cause surface activity effects, so as to fully mix with air and water to form a sufficient amount of bubbles.

[0189] When the temperature of the milk liquid reaches the first preset temperature, the intake air volume is reduced or the intake air is directly cut off by adjusting the intake air valve 301. Whether the bubbles in the milk liquid have reached the sufficient requirement can be judged by detecting the liquid level of the tank body 400. For example, when the liquid level in the tank body 400 rises by a predetermined height, it can indicate that the bubbles in the milk liquid have reached the sufficient requirement. Herein, the specific predetermined height of the rise of the liquid level can vary according to the volume of the tank body 400, the structure, the volume of the milk liquid, etc., and the present application does not make specific numerical limitations herein.

[0190] In one embodiment, the coffee machine further includes a steam control valve, and the steam control valve is arranged on the steam delivery pipeline 300 and is used for controlling the on-off state between the steam generation module 200 and the tank body 400, and / or the steam flow rate output by the steam generation module 200.

[0191] In this embodiment, the coffee machine can include a steam control valve, and the steam control valve can be used for controlling the connection state between the steam generation module 200 and the tank body 400. For example, the steam control valve can be an on-off valve. When the steam control valve is opened, the steam generation module 200 is connected to the tank body 400; when the steam control valve is closed, the steam generation module 200 is not connected to the tank body 400. In addition, the steam control valve can be a regulating valve with an adjustable opening degree, and it can regulate the amount and duration of the steam input from the steam generation module 200 to the tank body 400 according to the change of the actual application scenario.

[0192] In one embodiment, the steam control valve is electrically connected to the controller. After the coffee machine switches from the first processing stage state of whipping the milk liquid to the second processing stage of whipping the milk liquid, when the temperature detection component detects that the temperature of the milk liquid reaches the second preset temperature, the controller controls the steam control valve to switch from the open state to the closed state.

[0193] In this embodiment, the process of whipping the milk liquid includes: a first processing stage for generating bubbles and a second processing stage for forming a fine foam. After the first processing stage ends, the temperature of the milk liquid has usually been heated to above 40 degrees Celsius, and the milk liquid contains a sufficient amount of bubbles. At this time, only steam is input into the milk liquid, and the input steam is used to stir the milk liquid to eliminate large bubbles in the milk liquid, while allowing proteins and fats to collide and combine. In the second processing stage, the temperature gradually rises from 40 degrees Celsius, the sweetness of lactose in the milk liquid becomes gradually obvious, the proteins become more unfolded, and collide with fats. During the heating process of the proteins, after unfolding, they form relative hydrophilic ends and hydrophobic ends. Among them, the hydrophobic ends are branched, and the branches can make the formed bubbles more firm and not easily deflate. Overall, after the fine-foaming process in the second processing stage, the milk foam becomes delicate and soft, has a high degree of fusion with the milk liquid, the liquid surface is smooth and shiny, overflows with milk fragrance, and tastes sweet.

[0194] When the temperature reaches the above-mentioned second preset temperature, it indicates that the second processing stage of forming a fine foam has been completed, and at this time, the steam control valve can be closed. Among them, the second preset temperature is 60±5 degrees Celsius. When the temperature reaches above the second preset temperature, for example, when heated to 70°C, the proteins in the milk liquid will break or denature, thereby reducing the quality of the milk foam and the nutrition of the milk liquid. Therefore, the second processing stage of forming a fine foam needs to accurately control the temperature to prevent the milk liquid from being heated to too high a temperature, causing the internal proteins to break or deform.

[0195] As Figure 8 shown, in the specification of the present application, a milk foam generation system is also provided. The milk foam generation system includes: a steam generation module 200, the steam generation module 200 has a water inlet and a steam outlet, the water inlet is used to input water required for generating steam into the steam generation module 200, and the steam generated by the steam generation module 200 flows to the steam outlet; a steam delivery pipeline 300, the steam delivery pipeline 300 has a steam inlet and a steam outlet 310, the steam inlet is connected to the steam outlet; an air intake mechanism, the air intake mechanism is connected to the steam delivery pipeline 300 and is used to mix a predetermined gas into the steam in the steam delivery pipeline 300; a tank body 400, the tank body 400 is used to hold the milk liquid, and the tank body 400 has a communication port 410 adapted to the steam outlet 310. When the communication port 410 on the tank body 400 is connected to the steam outlet 310, the fluid flowing out of the steam outlet 310 can flow into the tank body 400.

[0196] In the embodiment of the present application, the milk foam generation system mainly includes: a steam generation module 200, a steam delivery pipeline 300, an air intake mechanism, and a tank body 400. The milk foam generation system can be understood as a part of the above-mentioned coffee machine. Among them, the various components in the milk foam generation system, the cooperation relationship between adjacent components, the functions achieved, etc. can refer to the specific description of the above-mentioned coffee machine embodiment, and will not be elaborated herein.

[0197] Of course, in addition to being applicable to coffee machines, the milk foam generation system can also be used as an independent device for generating milk foam.

[0198] Among them, for the tank body 400, a one-way conduction component is provided at the communication port 410 of the tank body 400, and the one-way conduction component is configured to prevent the milk liquid from flowing out of the communication port 410 when the communication port 410 of the tank body 400 is disconnected from or in a non-connected state with the steam outlet 310.

[0199] Specifically, the one-way conduction component is configured to be opened or pushed open by the steam output from the steam outlet 310 when the communication port 410 on the tank body 400 is connected to the steam outlet 310, so that the steam flowing out of the steam outlet 310 flows into the tank body 400.

[0200] Specifically, the one-way conduction component includes any one of the following: a one-way valve 420, a solenoid valve.

[0201] In addition, the milk foam generation system further includes: a steam guiding component 430 provided downstream of the communication port 410 of the tank body 400. When the one-way conduction component is opened or pushed open by the steam output from the steam outlet 310, the steam guiding component 430 allows the steam to flow into the milk liquid in the tank body 400 in a predetermined manner.

[0202] Specifically, the air intake mechanism may include a Venturi structure 320. The Venturi structure 320 has an inlet end, an outlet end, and an air intake port. The inlet end and the outlet end are respectively connected to the steam delivery pipeline 300, and the air intake port is provided in the throat section of the Venturi structure 320.

[0203] Specifically, an air intake valve 301 is provided at or upstream of the air intake port. The air intake valve 301 is used to control the on / off of the passage of a predetermined gas into the steam delivery pipeline 300 and / or the flow rate of the predetermined gas.

[0204] Specifically, the tank body 400 includes a bottom wall 401 and a side wall 402, and the steam guiding component 430 is provided on the bottom wall 401 and / or on the side wall 402 close to the bottom wall 401.

[0205] Among them, the steam guiding member 430 includes at least one nozzle 431, and the direction in which the nozzle 431 ejects fluid forms a predetermined angle with the radial direction of the tank body 400.

[0206] Among them, the steam guiding member 430 is arranged on the bottom wall 401, and the distance from the nozzle 431 to the center of the bottom wall 401 is greater than the distance from the nozzle 431 to the side wall 402.

[0207] Among them, the communication port 410 and the steam guiding member 430 are arranged opposite to each other, and the steam guiding member 430 is located inside the tank body 400 and is an integral structure with the tank body 400.

[0208] Among them, the steam guiding member 430 includes a side wall 402 and a top wall. The nozzle 431 is arranged on the side wall of the steam guiding member 430, and the top wall of the steam guiding member 430 is arranged opposite to the communication port 410.

[0209] Among them, the communication port 410 and the steam outlet 310 are hermetically fitted in a detachable manner. When the communication port 410 is connected to the steam outlet 310, the communication port 410 and the steam outlet 310 are hermetically fitted.

[0210] Among them, the milk foam generating system is further provided with a base 440 adapted to the bottom wall 401 of the tank body 400, and the steam outlet 310 is arranged on the base 440.

[0211] Among them, a first fitting portion 451 for fitting with the steam outlet 310 is arranged on the base 440, and the steam outlet 310 and the first fitting portion 451 are fitted by a detachable connection method.

[0212] Among them, a second fitting portion for fitting with the bottom wall 401 of the tank body 400 is arranged on the base 440, a docking portion for docking with the second fitting portion is arranged on the bottom wall 401 of the tank body 400, and the docking portion and the second fitting portion are movably fitted.

[0213] Among them, a one-way conduction member is arranged at the communication port 410 of the tank body 400, a third fitting portion for fitting with the one-way conduction member is arranged on the base 440, and when the tank body 400 is installed in the base 440, the third fitting portion can open the one-way conduction member.

[0214] Among them, the inner wall of the tank body 400 is a smooth surface or is provided with an easy-to-clean coating.

[0215] Overall, the milk foam generation system in the embodiments of the present application can achieve the technical effects realized by the milk foam generation part in the coffee machine embodiments. Specifically, please refer to the specific descriptions of the above embodiments, and the present application will not elaborate herein.

[0216] It should be noted that in the description of the present application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects, and there is no sequence between them, nor can they be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0217] The above embodiments in this specification are all described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and each embodiment focuses on the differences from other embodiments.

[0218] The above are only several embodiments of the present utility model. Although the disclosed embodiments of the present utility model are as above, the content is only an embodiment adopted for the convenience of understanding the present utility model and is not used to limit the present utility model. Any person skilled in the art in the technical field to which the present utility model pertains, without departing from the spirit and scope disclosed by the present utility model, can make any modifications and changes in the form and details of the embodiments, but the scope of patent protection of the present utility model shall still be subject to the scope defined by the appended claims.

Claims

1. A coffee machine, characterized in that, The coffee machine includes: A coffee liquid generation module, which has a hot water inlet and a coffee liquid outlet. The hot water input from the hot water inlet flows through the coffee material in the coffee liquid generation module to generate coffee liquid and flows to the coffee liquid outlet; A steam generation module, which has a water inlet and a steam outlet. The water inlet is used to input water required for generating steam into the steam generation module, and the steam generated by the steam generation module flows to the steam outlet; A steam delivery pipeline, which has a steam inlet and a steam outlet, and the steam inlet is connected to the steam outlet; A movable tank for containing milk liquid. The tank has a communication port adapted to the steam outlet. When the communication port on the tank is connected to the steam outlet, the steam flowing out of the steam outlet can flow into the tank.

2. The coffee machine according to claim 1, wherein, The inner wall of the tank is a smooth surface or is provided with an easy-to-clean coating.

3. The coffee machine according to claim 1, characterized in that, The coffee machine has a working mode of synchronously generating coffee liquid and steam. When the coffee machine enters the working mode of synchronously generating coffee liquid and steam: the steam generation module inputs steam into the tank to heat the milk liquid to a predetermined temperature range, and the coffee liquid generation module generates a predetermined volume of coffee liquid.

4. The coffee machine according to claim 3, characterized in that, When the coffee machine finishes preparing a predetermined volume of coffee liquid or before finishing preparing a predetermined volume of coffee liquid, the milk liquid is heated to a predetermined temperature range.

5. The coffee machine according to claim 1, wherein, When the communication port of the tank containing milk liquid is connected to the steam outlet, the steam generation module can input steam for a preset duration into the tank to heat the milk liquid to a predetermined temperature range.

6. The coffee machine according to claim 1, wherein, The tank is arranged inside or outside the housing of the coffee machine.

7. The coffee machine according to claim 6, characterized in that, The steam outlet extends out of the housing of the coffee machine, and the tank is arranged outside the housing of the coffee machine.

8. The coffee machine according to claim 1, characterized in that, A one-way conduction component is arranged at the communication port of the tank. The one-way conduction component is configured to prevent the milk liquid from flowing out of the communication port when the communication port of the tank is disconnected from or in a non-connected state with the steam outlet.

9. The coffee machine according to claim 8, characterized in that, The one-way conduction component is configured to be opened or pushed open by the steam output from the steam outlet when the communication port on the tank is connected to the steam outlet, so that the steam flowing out of the steam outlet can flow into the tank.

10. The coffee machine according to claim 9, characterized in that, The one-way conduction component includes any one of the following: a one-way valve, a solenoid valve.

11. The coffee machine according to claim 9, characterized in that, The coffee machine further includes: a steam guiding component arranged downstream of the communication port of the tank. When the one-way conduction component is opened or pushed open by the steam output from the steam outlet, the steam guiding component enables the steam to flow into the milk liquid in the tank in a predetermined manner.

12. The coffee machine according to claim 1, characterized in that An air intake mechanism is connected to the steam delivery pipeline. The air intake mechanism is used to mix a predetermined gas into the steam in the steam delivery pipeline.

13. The coffee machine according to claim 12, characterized in that, The air intake mechanism includes a Venturi structure, which has an inlet end, an outlet end and an air intake port. The inlet end and the outlet end are respectively connected to the steam delivery pipeline, and the air intake port is arranged at the throat section of the Venturi structure.

14. The coffee machine according to claim 13, characterized in that, An intake valve is provided at or upstream of the intake port, and the intake valve is used to control the on / off of the passage of a predetermined gas into the steam delivery pipeline and / or the flow rate of the predetermined gas.

15. The coffee machine according to claim 11, characterized in that, The tank body includes a bottom wall and a side wall, and the steam guiding member is provided on the bottom wall and / or on the side wall close to the bottom wall.

16. The coffee machine according to claim 15, wherein, The steam guiding member includes at least one nozzle, and the direction in which the nozzle ejects fluid forms a predetermined angle with the radial direction of the tank body.

17. The coffee machine according to claim 16, characterized in that, The steam guiding member is provided on the bottom wall, and the distance from the nozzle to the center of the bottom wall is greater than the distance from the nozzle to the side wall.

18. The coffee machine according to claim 15, characterized in that, The communication port is disposed opposite to the steam guiding member, and the steam guiding member is located inside the tank body and is an integral structure with the tank body.

19. The coffee machine according to claim 16, wherein, The steam guiding member includes a side wall and a top wall, the nozzle is provided on the side wall of the steam guiding member, and the top wall of the steam guiding member is disposed opposite to the communication port.

20. The coffee machine according to claim 1, characterized in that, The communication port and the steam outlet are hermetically fitted in a detachable manner. When the communication port is connected to the steam outlet, the communication port and the steam outlet are hermetically fitted.

21. The coffee machine according to claim 1, characterized in that, The coffee machine further includes a heating module, which is provided upstream of the hot water inlet and is used to supply hot water to the coffee liquid generating module; the heating module can be connected to an external water source and / or a water tank provided inside the coffee machine.

22. The coffee machine according to claim 21, characterized in that, The water inlet of the steam generating module is connected to the water tank and / or an external water source.

23. The coffee machine according to claim 1, characterized in that, The coffee machine is further provided with a base adapted to the bottom wall of the tank body, and the steam outlet is provided on the base.

24. The coffee machine according to claim 23, characterized in that, A first fitting portion adapted to the steam outlet is provided on the base, and the steam outlet and the first fitting portion are fitted together by a detachable connection method.

25. The coffee machine according to claim 24, wherein, A second fitting portion adapted to the bottom wall of the tank body is provided on the base, a docking portion adapted to the second fitting portion is provided on the bottom wall of the tank body, and the docking portion and the second fitting portion are movably fitted together.

26. The coffee machine according to claim 25, characterized in that, A one-way conduction member is provided at the communication port of the tank body, and a third fitting portion adapted to the one-way conduction member is provided on the base. When the tank body is installed in the base, the third fitting portion can open the one-way conduction member.

27. The coffee machine according to claim 14, characterized in that, The intake valve includes a regulating valve capable of adjusting the flow rate of the predetermined gas flowing into the steam delivery pipeline. The coffee machine includes a controller, and a plurality of coffee preparation modes are stored in the controller. In different coffee preparation modes, the opening degrees of the regulating valve stored correspondingly are different.

28. The coffee machine according to claim 14, characterized in that, The coffee machine further includes: a temperature detection member for detecting the temperature of the milk liquid in the tank body; a controller electrically connected to the intake valve and the temperature detection member; When the coffee machine is in the first processing stage of whipping the milk liquid, when the temperature detection member detects that the temperature of the milk liquid reaches a first preset temperature, the controller controls the intake valve to reduce the intake air volume or switch from the open state to the closed state.

29. The coffee machine according to claim 28, wherein, The first preset temperature is 40 ± 5 degrees Celsius.

30. The coffee machine according to claim 28, wherein, The coffee machine further includes a steam control valve, which is arranged on the steam delivery pipeline and is used to control the on-off state between the steam generation module and the tank, and / or the steam flow rate output by the steam generation module.

31. The coffee machine according to claim 30, characterized in that, The steam control valve is electrically connected to the controller. After the coffee machine switches from the first processing stage state of milk frothing to the second processing stage of milk frothing, when the temperature detection component detects that the temperature of the milk reaches the second preset temperature, the controller controls the steam control valve to switch from the open state to the closed state.

32. The coffee machine according to claim 31, characterized in that, The second preset temperature is 60 ± 5 °C.

33. The coffee machine according to claim 1, characterized in that, The coffee machine has a coffee outlet for flowing out coffee, and the coffee outlet is arranged opposite to the tank, and the coffee flowing out from the coffee outlet can flow into the milk in the tank; or, the tank is arranged offset from the coffee outlet, and the coffee flowing out from the coffee outlet does not flow into the milk in the tank.

34. A milk foam generation system, characterized in that, The milk foam generation system includes: A steam generation module, which has a water inlet and a steam outlet. The water inlet is used to input water required for generating steam into the steam generation module, and the steam generated by the steam generation module flows towards the steam outlet; A steam delivery pipeline, which has a steam inlet and a steam outlet, and the steam inlet is connected to the steam outlet; An air intake mechanism, which is connected to the steam delivery pipeline and is used to mix a predetermined gas into the steam in the steam delivery pipeline; A tank, which is used to hold milk. The tank has a communication port adapted to the steam outlet. When the communication port on the tank is connected to the steam outlet, the fluid flowing out from the steam outlet can flow into the tank.

35. The milk foam generation system according to claim 34, wherein, A one-way conduction component is arranged at the communication port of the tank. The one-way conduction component is configured to prevent the milk from flowing out of the communication port when the communication port of the tank is disconnected from the steam outlet or in a non-connected state.

36. The milk foam generation system according to claim 35, characterized in that, The one-way conduction component is configured to be opened or pushed open by the steam output from the steam outlet when the communication port on the tank is connected to the steam outlet, so that the steam flowing out from the steam outlet can flow into the tank.

37. The milk foam generation system according to claim 36, wherein, The one-way conduction component includes any one of the following: a one-way valve, a solenoid valve.

38. The milk foam generation system according to claim 36, wherein, The milk foam generation system further includes: a steam guiding component arranged downstream of the communication port of the tank. When the one-way conduction component is opened or pushed open by the steam output from the steam outlet, the steam guiding component enables the steam to flow into the milk in the tank in a predetermined manner.

39. The milk foam generation system according to claim 34, wherein, The air intake mechanism includes a Venturi structure, which has an inlet end, an outlet end and an air intake port. The inlet end and the outlet end are respectively connected to the steam delivery pipeline, and the air intake port is arranged in the throat section of the Venturi structure.

40. The milk foam generation system according to claim 39, wherein, An air intake valve is arranged at or upstream of the air intake port, and the air intake valve is used to control the on-off of the predetermined gas flowing into the steam delivery pipeline and / or the flow rate of the predetermined gas.

41. The milk foam generation system according to claim 38, wherein, The tank body includes a bottom wall and a side wall, and the steam guiding component is arranged on the bottom wall and / or on the side wall close to the bottom wall.

42. The milk foam generation system according to claim 41, wherein The steam guiding component includes at least one nozzle, and the direction of the fluid ejected from the nozzle forms a predetermined angle with the radial direction of the tank body.

43. The milk foam generating system according to claim 42, wherein The steam guiding component is arranged on the bottom wall, and the distance from the nozzle to the center of the bottom wall is greater than the distance from the nozzle to the side wall.

44. The milk foam generation system according to claim 41, wherein, The communication port is arranged opposite to the steam guiding component, and the steam guiding component is located inside the tank body and is an integral structure with the tank body.

45. The milk foam generation system according to claim 42, wherein The steam guiding component includes a side wall and a top wall, the nozzle is arranged on the side wall of the steam guiding component, and the top wall of the steam guiding component is arranged opposite to the communication port.

46. The milk foam generation system according to claim 34, wherein, The communication port and the steam outlet are hermetically matched in a detachable manner. When the communication port is connected to the steam outlet, the communication port and the steam outlet are hermetically matched.

47. The milk foam generation system according to claim 34, wherein, The milk foam generating system is further provided with a base adapted to the bottom wall of the tank body, and the steam outlet is arranged on the base.

48. The milk foam generating system according to claim 47, wherein The base is provided with a first matching portion adapted to the steam outlet, and the steam outlet and the first matching portion are matched by a detachable connection method.

49. The milk foam generation system according to claim 48, wherein, The base is provided with a second matching portion adapted to the bottom wall of the tank body, and the bottom wall of the tank body is provided with a docking portion docked with the second matching portion, and the docking portion and the second matching portion are movably matched.

50. The milk foam generation system according to claim 49, wherein, A one-way conduction component is arranged at the communication port of the tank body, and the base is provided with a third matching portion adapted to the one-way conduction component. When the tank body is installed in the base, the third matching portion can open the one-way conduction component.

51. The milk foam generation system according to claim 34, characterized in that, The inner wall of the tank body is a smooth surface or is provided with an easy-to-clean coating.

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