Brewing control method, brewing system of beverage preparation equipment and beverage preparation equipment

Abstract

The invention belongs to the technical field of beverage preparation equipment, and discloses a brewing control method, a brewing system of beverage preparation equipment and the beverage preparation equipment. The brewing control method comprises the steps that S10, when water and powder are fed into a brewing bin, an air blowing stirring unit is controlled to be started, and air is blown into the brewing bin; and / or, after the brewing bin completes feeding of the water and the powder, the air blowing stirring unit is controlled to be started, and air is blown into the brewing bin; s20, after the blowing stirring unit stops blowing, a top opening of the brewing bin is closed; and S30, pressurizing the brewing bin, and trickling and filtering the coffee liquid. According to the brewing control method, the brewing efficiency and effect of the coffee liquid can be improved, the concentration of the coffee liquid is effectively improved, and the user experience can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of beverage preparation equipment, and in particular to a brewing control method, a brewing system of a beverage preparation equipment, and a beverage preparation equipment. Background Art

[0002] The brewing system of an existing coffee machine typically includes a brewing chamber and a filter within it. Coffee powder falls onto the filter, where water, under the micro-pressure created by the brewing chamber, dissolves the powder and drips into liquid coffee. As the water and coffee mix, the concentration of the liquid coffee gradually increases.

[0003] However, the brewing system of the above-mentioned coffee machine has the problem that the dripping speed is too slow and the time taken to increase the coffee concentration is too long, which affects the quality and formation efficiency of the coffee liquid, thereby affecting the coffee making efficiency of the coffee sales store and the user experience.

[0004] Therefore, there is an urgent need for a brewing control method, a brewing system of a beverage preparation device, and a coffee machine to solve the above problems. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a brewing control method, which can improve the brewing efficiency and effect of beverage liquid, effectively increase the concentration of beverage liquid, and enhance the user experience.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A brewing control method is provided, wherein the brewing control method can control the brewing system of a beverage preparation device, wherein the brewing system of the beverage preparation device includes a brewing chamber, a drip filter unit, a liquid outlet unit, and an air blowing and stirring unit. The drip filter unit is arranged in the brewing chamber and can receive water and powder and drip filter to form a beverage liquid; the liquid outlet unit is arranged at the bottom of the brewing chamber and can flow out the beverage liquid in the drip filter unit; the air blowing and stirring unit is connected to the drip filter unit and can blow air into the brewing chamber to stir the water and powder. The brewing control method includes:

[0008] S10, while the brewing chamber is being fed with water and powder, controlling the air blowing and stirring unit to start and blow air into the brewing chamber; and / or, after the brewing chamber is completely fed with water and powder, controlling the air blowing and stirring unit to start and blow air into the brewing chamber;

[0009] S20, after the blowing and stirring unit stops blowing, closing the top opening of the brewing chamber;

[0010] S30, pressurizing the brewing chamber to perform drip filtering of the beverage liquid.

[0011] As a preferred embodiment of the brewing control method provided by the present invention, the brewing control method further includes:

[0012] S40: After the drip filtration of the beverage liquid is completed, the pressurization of the brewing chamber is stopped.

[0013] According to another aspect of the present invention, an object is to provide a brewing system for a beverage preparation device, wherein the brewing system for the beverage preparation device prepares a beverage liquid based on the brewing control method according to any of the above solutions, and the brewing system for the beverage preparation device comprises:

[0014] a brewing chamber, arranged downstream of the powder-water premixing system of the beverage preparation device, capable of containing water and powder;

[0015] A drip filter unit is provided in the brewing chamber, capable of receiving water and powder, and drip filtering to form a beverage liquid;

[0016] The air blowing and stirring unit is connected to the bottom of the brewing chamber and is connected to the drip filter unit, and can blow air into the brewing chamber to stir water and powder.

[0017] As a preferred solution of the brewing system of the beverage preparation equipment provided by the present invention, the blowing and stirring unit includes a stirring air pump and a stirring connecting pipe, the stirring connecting pipe is connected between the stirring air pump and the brewing chamber, and is connected to the drip filter unit, and the stirring air pump is configured to provide gas.

[0018] As a preferred embodiment of the brewing system of the beverage preparation device provided by the present invention, the brewing system of the beverage preparation device further includes an inflation and pressurization unit, which is connected to the space above the drip filter unit in the brewing chamber and can inflate and pressurize the brewing chamber.

[0019] As a preferred solution of the brewing system of the beverage preparation equipment provided by the present invention, the inflation and pressurization unit includes a pressurized air pump, a pressurized connecting pipe and a porous distribution structure. The porous distribution structure is covered on the top of the brewing chamber and is connected to the pressurized connecting pipe and the pressurized air pump. The pressurized air pump is configured to provide pressurized gas, and the pressurized gas can enter the brewing chamber from the porous distribution structure.

[0020] As a preferred solution of the brewing system of the beverage preparation equipment provided by the present invention, the brewing system also includes a lifting drive unit, which is arranged below the brewing chamber and extends into the brewing chamber, and is connected to the drip filter unit. The drip filter unit can be lifted and lowered along the longitudinal axis direction of the brewing chamber under the drive of the lifting drive unit to switch between a brewing drip filter position and a slag discharge position.

[0021] As a preferred solution of the brewing system of the beverage preparation device provided by the present invention, the brewing system of the beverage preparation device further includes a closing unit, which is movably provided on the top of the brewing chamber and can close / open the top opening of the brewing chamber.

[0022] As a preferred solution of the brewing system of the beverage preparation device provided by the present invention, the brewing system of the beverage preparation device further includes a liquid outlet unit, which is arranged at the bottom of the brewing chamber and can flow out the beverage liquid or waste liquid in the drip filter unit.

[0023] As a preferred solution of the brewing system of the beverage preparation device provided by the present invention, the liquid outlet unit includes a trigger structure and a liquid outlet structure, and the trigger structure is connected to the liquid outlet structure;

[0024] The drip filter unit can be raised and lowered along the longitudinal axis of the brewing chamber. When the drip filter unit descends to the bottom of the brewing chamber, the trigger structure can open the drip filter unit, and the beverage liquid or waste liquid can flow out through the liquid outlet structure.

[0025] As a preferred embodiment of the brewing system of the beverage preparation device provided by the present invention, the drip filter unit includes a filtering structure, a drip filter chamber, and a dripping structure with a one-way valve function, wherein the filtering structure is arranged at the top of the drip filter chamber, and the dripping structure with a one-way valve function is arranged at the bottom of the drip filter chamber;

[0026] When the drip filter unit descends to the bottom of the brewing chamber, the trigger structure can open the drip structure with a one-way valve function, and the beverage liquid in the brewing chamber can enter the liquid outlet structure;

[0027] When the drip filter unit rises until the trigger structure is separated from the drip structure with a one-way valve function, the drip structure with a one-way valve function is closed.

[0028] As a preferred solution of the brewing system of the beverage preparation equipment provided by the present invention, the bottom of the drip chamber is arranged at an angle, the drip structure with a one-way valve function is arranged at the lowest point of the bottom of the drip chamber, and a vent is opened at the bottom of the drip chamber. There are one or more vents, and the setting height of the vent is higher than the setting height of the drip structure with a one-way valve function. The air blowing and stirring unit is connected to the drip chamber through the vent.

[0029] As a preferred solution of the brewing system of the beverage preparation equipment provided by the present invention, the liquid outlet structure includes a three-way valve, a drain pipe and a waste pipe, the three-way valve is connected to the bottom of the brewing chamber, the drain pipe and the waste pipe are selectively connected to the three-way valve respectively, the drain pipe is configured to flow out the beverage liquid, and the waste pipe is configured to discharge the waste liquid.

[0030] According to another aspect of the present invention, the object is to provide a beverage preparation device, which includes a powder-water premixing system and a brewing system of the beverage preparation device as described in any of the above schemes, wherein the brewing system of the beverage preparation device is arranged downstream of the powder-water premixing system, and the powder-water premixing system is configured to provide water and powder to the brewing chamber.

[0031] Beneficial effects of the present invention:

[0032] The brewing control method provided by the present invention uses an air blowing and stirring unit to blow air into the brewing chamber, which can utilize the air to stir the water and powder, achieving a tumbling effect of the water and powder, allowing the powder to be more fully and efficiently extracted by the water, thereby increasing the concentration of the beverage liquid in a short period of time and improving the brewing effect. By pressurizing the brewing chamber, a micro-pressure environment can be created in the brewing chamber, which, in conjunction with the drip filter unit, increases the drip filter rate and effect of the coffee, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0034] Figure 1 is a schematic diagram of a beverage preparation device provided in Example 1 of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of a beverage preparation device provided in Example 1 of the present invention. Figure 1 ;

[0036] Figure 3 This is a schematic diagram of the structure of a beverage preparation device provided in Example 1 of the present invention. Figure 2 ;

[0037] Figure 4 This is a partial schematic diagram of the brewing system of the beverage preparation device provided in Example 1 of the present invention. Figure 1 ;

[0038] Figure 5 This is a partial schematic diagram of the brewing system of the beverage preparation device provided in Example 1 of the present invention. Figure 2 ;

[0039] Figure 6 This is a partial schematic diagram of the brewing system of the beverage preparation device provided in Example 1 of the present invention. Figure 3 ;

[0040] Figure 7 is a partial schematic diagram of a brewing system of a beverage preparation device provided in Example 1 of the present invention;

[0041] Figure 8 This is a partial cross-sectional view of the brewing chamber, drip filter unit and liquid outlet unit provided in Example 1 of the present invention. Figure 1 ;

[0042] Figure 9 This is a partial cross-sectional view of the brewing chamber, drip filter unit and liquid outlet unit provided in Example 1 of the present invention. Figure 2 ;

[0043] Figure 10 is a partial structural cross-sectional view of a trickling filter unit provided in Example 1 of the present invention;

[0044] Figure 11 This is a schematic structural diagram of the touch screen operating device provided in the first embodiment of the present invention;

[0045] Figure 12 It is a display schematic diagram of the touch screen operation device in the brewing control method provided in the second embodiment of the present invention.

[0046] In the picture:

[0047] 1. Sealed position; 2. Open position;

[0048] 10. Powder-water premixing system; 20. Housing; 40. Touchscreen operating device; 41. Ventilation port;

[0049] 100, brewing chamber; 110, bracket; 120, wastewater outlet pipe; 130, water receiving ring groove;

[0050] 200, closing unit; 210, closing cover body; 220, movable guide frame; 230, dust cover;

[0051] 300, trickling filter unit; 310, filtering structure; 320, trickling filter chamber; 321, vent; 330, dripping structure with one-way valve function; 331, valve core; 332, elastic element; 333, housing; 334, flow-blocking boss; 335, sealing ring; 340, sealing ring;

[0052] 400, liquid outlet unit; 410, trigger structure; 411, lifting rod; 412, trigger connection; 420, liquid outlet structure; 421, three-way valve; 422, liquid discharge pipe; 423, waste discharge pipe; 424, first control valve; 425, second control valve;

[0053] 500, air blowing and stirring unit; 510, stirring air pump; 520, stirring connecting pipe;

[0054] 600, inflation and pressurization unit; 610, pressurization air pump; 620, pressurization connecting pipe; 630, porous distribution structure;

[0055] 700, lifting drive unit; 710, lifting drive device; 720, transmission screw; 730, guide rod; 740, mounting base;

[0056] 800. Slag bucket. DETAILED DESCRIPTION

[0057] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0060] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0061] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0062] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; and they may refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0064] In this embodiment, the term "and / or" simply describes the association relationship between associated objects, indicating that three possible relationships exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this invention generally indicates that the associated objects are in an "or" relationship.

[0065] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0066] The beverage preparation equipment of the present invention may include coffee machines, tea machines, beverage machines, Chinese medicine beverage machines, etc.; the powder referred to in the powder-water premix of the present invention includes coffee powder (including freshly ground and instant powder), tea powder, chocolate powder, Chinese medicine powder and other powder products; the beverage liquid of the present invention includes coffee liquid, tea liquid, chocolate liquid, Chinese medicine liquid, etc.; this application uses coffee machines, coffee powder and coffee liquid as examples to describe the solution.

[0067] Example 1

[0068] Figure 1 A schematic diagram showing a beverage preparation device provided in a first embodiment of the present invention; Figure 2 A schematic diagram showing a portion of the structure of a beverage preparation device provided in Example 1 of the present invention Figure 1 ; Figure 3 A schematic diagram showing a portion of the structure of a beverage preparation device provided in Example 1 of the present invention Figure 2. Reference Figure 1-Figure 3 , this embodiment provides a brewing system for a beverage preparation device and a beverage preparation device.

[0069] The coffee machine includes a housing 20, a powder-water premixing system 10, and a brewing system of the beverage preparation device provided in this embodiment. The brewing system of the coffee machine is disposed downstream of the powder-water premixing system 10. The powder-water premixing system 10 is configured to provide water and powder to the brewing chamber 100. Both the brewing system and the powder-water premixing system 10 are disposed within the housing 20.

[0070] Figure 4 A partial schematic diagram of a brewing system of a beverage preparation device provided in embodiment 1 of the present invention is shown. Figure 1 ; Figure 5 A partial schematic diagram of a brewing system of a beverage preparation device provided in embodiment 1 of the present invention is shown. Figure 2 . Reference Figure 3-Figure 5 The brewing system includes a brewing chamber 100, a sealing unit 200, a drip filter unit 300, a liquid outlet unit 400, an air blowing and stirring unit 500, and an air charging and pressurizing unit 600.

[0071] Specifically, the brewing chamber 100 is arranged downstream of the powder-water premixing system 10 and can accommodate water and powder. The sealing unit 200 can seal the top opening of the brewing chamber 100 (such as Figure 3 As shown), so that the interior of the brewing chamber 100 is in a sealed environment. The closing unit 200 can also open the top opening of the brewing chamber 100, so that the brewing chamber 100 can receive the water and powder of the powder-water premixing system 10. The drip unit 300 is arranged in the brewing chamber 100, and can receive the powder and water, and drip filter to form coffee liquid. The liquid outlet unit 400 is arranged at the bottom of the brewing chamber 100, and can flow out the coffee liquid in the drip unit 300, and can also discharge the waste liquid in the drip unit 300. Through the above-mentioned drip unit 300 and liquid outlet unit 400, the basic brewing function of the brewing system can be realized. The air blowing and stirring unit 500 extends into the bottom of the brewing chamber 100 and is connected to the drip unit 300, and can blow air into the brewing chamber 100 to stir the water and powder. By providing the air blowing and stirring unit 500, gas can be used to stir the water and powder, achieving a tumbling effect of the water and powder, so that the powder can be extracted more fully and more efficiently by the water, thereby increasing the concentration of the coffee liquid in a short time and improving the brewing effect.

[0072] More specifically, the gas-inflating and pressurizing unit 600 is connected to the space above the drip filter unit 300 in the brewing chamber 100 and is capable of inflating and pressurizing the brewing chamber 100. This gas-inflating and pressurizing unit 600 creates a micro-pressure environment of approximately 0.5 bar in the brewing chamber, which, in conjunction with the drip filter unit 300, improves the dripping rate and effect of coffee, enhancing the user experience.

[0073] Continue to refer to Figure 3 The sealing unit 200 is movably disposed on the top of the brewing chamber 100 and can be switched between a sealing position 1 and an open position 2. The sealing unit 200 can seal the top opening of the brewing chamber 100 in the sealing position 1, and can open the top opening of the brewing chamber 100 in the open position 2.

[0074] Specifically, the closed unit 200 includes a closed cover body 210, a movable guide frame 220, a mobile drive device (not shown) and a transmission assembly (not shown). The mobile guide frame 220 is arranged above the top of the brewing chamber 100, the closed cover body 210 is movably arranged in the mobile guide frame 220, and the mobile drive device is relatively fixedly arranged below the mobile guide frame 220 and is connected to the closed cover body 210 through a transmission assembly. The transmission assembly specifically includes a plurality of transmission gears, one of which is coaxially connected to the output end of the mobile drive device, and the mobile drive device can drive the transmission gear to rotate to achieve transmission. A rack is provided at the side edge of the bottom of the closed cover body 210, and the rack can be engaged and connected to one of the transmission gears. In the present embodiment, the mobile drive device can specifically be a motor.

[0075] More specifically, Figure 3 As shown, the closing unit 200 further includes a dust cover 230 , which is disposed above the closing cover body 210 and is detachably connected to the movable guide frame 220 to protect the closing cover body 210 .

[0076] Figure 6 A partial schematic diagram of the brewing system of the coffee machine provided in the first embodiment of the present invention is shown. Figure 3 , refer to Figure 6, the air blowing and stirring unit 500 includes a stirring air pump 510 and a stirring connecting pipe 520. The stirring connecting pipe 520 is connected between the stirring air pump 510 and the bottom of the brewing chamber 100, and is connected to the drip filter unit 300, and the stirring air pump 510 is configured to provide gas. The stirring connecting pipe 520 is also connected to a solenoid valve before entering the brewing chamber 100, which is used to control whether the stirring gas enters the brewing chamber 100. When the inflation and pressurization unit 600 is used to pressurize the brewing chamber 100, the solenoid valve needs to be closed to stop stirring. Preferably, the stirring connecting pipe 520 can enter the brewing chamber 100 in a multi-way manner, for example, it can be divided into three ways, so as to achieve more uniform air intake and better stirring effect. Further, by controlling the voltage or PWM (PulseWidth Modulation) intensity of the stirring air pump 510, the airflow velocity and / or intensity of the stirring gas can be adjusted to control the magnitude of the stirring force.

[0077] In this embodiment, a bifurcated pipe structure is provided at the outlet of the stirring connecting pipe 520, and the bifurcated pipe structure specifically includes multiple ventilation pipes. The outlet of each ventilation pipe is connected to the trickling filter unit 300, and stirring gas can be provided to the trickling filter unit 300 through multiple paths.

[0078] Figure 7 This is a partial schematic diagram of the brewing system of the coffee machine provided in Example 1 of the present invention, referring to Figure 7 The inflation and pressurization unit 600 includes a pressurized air pump 610, a pressurized connecting pipe 620 and a porous distribution structure 630. The porous distribution structure 630 is covered on the top of the brewing chamber 100, specifically integrated on the side of the closing cover body 210 facing the brewing chamber 100, and is connected to the pressurized connecting pipe 620 and the pressurized air pump 610. The pressurized air pump 610 is configured to provide pressurized gas, and the pressurized gas can enter the brewing chamber 100 from the porous distribution structure 630. By providing the above-mentioned porous distribution structure 630, the uniformity of the pressurized gas entering the brewing chamber 100 can be improved. Before entering the porous distribution structure 630, the pressurized connecting pipe 620 is divided into two paths through a three-way structure. One path of pressurized gas enters the porous distribution structure 630, and the other path of gas is connected to the water pipe of the powder-water mixing system through a three-way connection. When the powder-water premixing system 10 stops taking in water, the other route blows out the water in the water pipe and the water inside the powder-water premixing system 10 through the three-way connection.

[0079] Figure 8 A partial cross-sectional view of the brewing chamber, drip filter unit and liquid outlet unit provided in the first embodiment of the present invention is shown. Figure 1 ; Figure 9 A partial cross-sectional view of the brewing chamber, drip filter unit and liquid outlet unit provided in the first embodiment of the present invention is shown. Figure 2 . Reference Figure 8and Figure 9 The drip filter unit 300 includes a filter structure 310, a drip filter chamber 320 and a drip structure 330 with a one-way valve function. The filter structure 310 is arranged at the top of the drip filter chamber 320. The filter structure 310 is in the shape of a filter mesh and can prevent powder from passing through. The drip structure 330 with a one-way valve function is arranged at the bottom of the drip filter chamber 320.

[0080] As a preference, refer to Figure 9 The bottom inner wall of the brewing chamber 100 is surrounded by a water receiving annular groove 130, which is connected to a wastewater outlet pipe 120. The water receiving annular groove 130 can collect liquid that accidentally leaks between the drip filter unit 300 and the inner wall of the brewing chamber 100, preventing the liquid from entering the liquid outlet unit 400. The wastewater outlet pipe 120 is arranged toward the waste liquid receiving tray of the coffee machine and can direct the liquid in the water receiving annular groove to the waste liquid receiving tray.

[0081] Figure 10 A partial structural cross-sectional view of a drip filter unit according to the first embodiment of the present invention is shown. Figures 8-10 The liquid outlet unit 400 includes a trigger structure 410 and a liquid outlet structure 420. The trigger structure 410 is connected to the liquid outlet structure 420. The liquid outlet structure 420 can allow liquid to flow out. The drip filter unit 300 can be raised and lowered along the longitudinal axis of the brewing chamber 100, and the periphery of the drip filter unit 300 is tightly against the inner wall of the brewing chamber 100. When the drip filter unit 300 descends to the bottom of the brewing chamber 100, the trigger structure 410 can open the drip filter unit 300, and the coffee liquid or waste liquid can enter the liquid outlet structure 420, and the liquid outlet structure 420 can flow out the coffee liquid or waste liquid. In this embodiment, when the drip filter unit 300 descends to the bottom of the brewing chamber 100, the trigger structure 410 can contact and act on the drip structure 330 with a one-way valve function to open the drip structure 330 with a one-way valve function. At this time, the coffee liquid in the brewing chamber 100 can enter the liquid outlet structure 420. When the drip filter unit 300 rises until the trigger structure 410 is separated from the drip structure 330 with a one-way valve function, the drip structure 330 with a one-way valve function is closed.

[0082] Specifically, continue to refer to Figure 9 A vent hole 321 is provided at the bottom of the drip filter chamber 320. The vent hole 321 may be one or more, so as to allow the gas entering the bottom of the brewing chamber 100 to further enter the drip filter chamber 320 and the brewing chamber 100 corresponding to the space above the filter structure 310, thereby achieving stirring of the powder and water.

[0083] More specifically, the bottom of the drip chamber 320 is tilted, and the drip structure 330 with a one-way valve function is located at the lowest point of the bottom of the drip chamber 320. The vent 321 is located at a height higher than the drip structure 330 with a one-way valve function. The air blowing and stirring unit 500 is connected to the drip chamber 320 through the vent 321. This arrangement facilitates the smooth flow of liquid, such as coffee, from the drip chamber 320 to the drip structure 330 with a one-way valve function, thereby reducing liquid residue at the bottom of the drip chamber 320.

[0084] Continue to refer to Figure 10 The dripping structure 330 with a one-way valve function includes a valve core 331, an elastic element 332, and a housing 333. The housing 333 is integrally formed at the bottom of the drip filter chamber 320. The valve core 331 is coaxially arranged in the housing 333, and a dripping channel is formed therebetween. The inner wall of the housing 333 protrudes inward to form a flow-blocking boss 334. The elastic element 332 is connected to the valve core 331 and the housing 333. The elastic element 332 can position the valve core 331 in a closed position. When the valve core 331 is in the closed position, the sealing ring 335 arranged around the valve core 331 can abut against the flow-blocking boss 334, thereby blocking the dripping channel.

[0085] Specifically, the trigger structure 410 includes a lifting rod 411 and a trigger pipe 412. The trigger pipe 412 is connected to and communicates with the liquid outlet structure 420, and the lifting rod 411 is disposed in the trigger pipe 412. When the drip filter unit 300 is located at the bottom of the brewing chamber 100, the lifting rod 411 can extend into the housing 333 and lift the valve core 331, so that the valve core 331 overcomes the force of the elastic element 332 and rises, thereby separating the sealing ring 335 from the flow-blocking boss 334. Figure 11 As shown, at this time, the drip channel is opened, and the coffee liquid can flow from the drip channel and the trigger pipe 412 into the liquid outlet structure 420.

[0086] More specifically, refer to Figure 5 The liquid outlet structure 420 includes a three-way valve 421, a liquid discharge pipe 422, and a waste discharge pipe 423. The three-way valve 421 is connected to the bottom of the brewing chamber 100, and the liquid discharge pipe 422 and the waste discharge pipe 423 are selectively connected to the three-way valve 421 respectively. The liquid discharge pipe 422 is configured to discharge coffee liquid, and the waste discharge pipe 423 is configured to discharge waste liquid. It should be noted that the liquid outlet structure 420 also includes a first control valve 424 and a second control valve 425. Figure 6As shown. The first control valve 424 extends from one end of the three-way valve 421 into the three-way valve 421 to control the connection between the three-way valve 421 and the liquid discharge pipe 422. The second control valve 425 extends from the other end of the three-way valve 421 into the three-way valve 421 to control the connection between the three-way valve 421 and the waste discharge pipe 423. Both the first control valve 424 and the second control valve 425 can be solenoid valves. Their structures and the control principles for connecting and disconnecting the pipelines are all conventional and will not be described in detail in this embodiment.

[0087] Continue to refer to Figure 5 and Figure 7 The brewing system further includes a lifting drive unit 700. The lifting drive unit 700 is disposed below the brewing chamber 100 and extends into the brewing chamber 100, connected to the bottom of the drip filter unit 300. Driven by the lifting drive unit 700, the drip filter unit 300 can be raised and lowered along the longitudinal axis of the brewing chamber 100 to switch between a brewing drip filter position and a slag discharge position. The brewing drip filter position is located at the bottom of the brewing chamber 100, and the slag discharge position is flush with the top opening of the brewing chamber 100.

[0088] When the drip filter unit 300 is in the drip filter position, the drip filter chamber 320 can be connected to the liquid outlet unit 400, so that the coffee liquid can be discharged from the coffee machine.

[0089] When the drip filter unit 300 is in the residue discharge position, the waste residue on the filter structure 310 can protrude from the top opening of the brewing chamber 100. At this time, the closing cover body 210 can move and push the waste residue on the drip filter unit 300 in the residue discharge position out of the top opening of the brewing chamber 100.

[0090] Specifically, if Figure 5 As shown, the lifting drive unit 700 includes a lifting drive device 710, a transmission screw 720, a guide rod 730, and a mounting base 740. The lifting drive device 710 is disposed in a bracket 110 at the bottom of the brewing chamber 100, with its rotation output shaft arranged vertically. The transmission screw 720 is arranged vertically and is transmission-connected to the rotation output shaft of the lifting drive device 710 via a belt, a transmission pulley, etc. The guide rod 730 and the transmission screw 720 are parallel to each other and spaced apart, and are mounted in the bracket 110. The mounting base 740 is connected to the outside of the bottom of the drip filter chamber 320 and is slidably connected to the guide rod 730 and is helically connected to the transmission screw 720. When the lifting drive device 710 is in operation, the rotation output shaft rotates, which drives the transmission screw 720 to rotate about its own axis, thereby driving the mounting base 740 and the drip filter chamber 320 to rise and fall along the guide rod 730.

[0091] Continue to refer to Figure 8 and Figure 9 The drip filter unit 300 further includes a sealing ring 340, which is detachably mounted around the periphery of the drip filter chamber 320. The filter structure 310 abuts against the top of the drip filter chamber 320 and can tightly abut against the sealing ring 340. The sealing ring 340 also abuts tightly against the inner wall of the brewing chamber 100. When the lifting drive unit 700 drives the drip filter unit 300 to rise above the top opening of the brewing chamber 100, the sealing ring 340 and the filter structure 310 can be removed from the drip filter chamber 320 for easy cleaning.

[0092] Specifically, continue to refer to Figure 1 and Figure 3 A slag bucket 800 is disposed below the end opening of the movable guide frame 220. This slag bucket 800 is detachably connected to the front wall of the housing 20 and is capable of receiving waste slag. As the closure body 210 moves from the open position 2 to the sealed position 1, it pushes waste slag from the filter structure 310 until it reaches the end opening of the movable guide frame 220 and falls into the slag bucket 800.

[0093] Figure 11 A schematic diagram showing the structure of the touch screen operating device provided in the first embodiment of the present invention is shown. Figure 1 and Figure 11 Since the water provided by the powder-water premixing system 10 is hot water, a large amount of steam is generated during the process of the powder-water premixing system 10 draining the water into the brewing chamber 100. This steam will overflow from the gap between the top opening of the brewing chamber 100 and the powder-water premixing system 10. The overflowing steam will affect the user's operation and observation of the touch-screen operating device 40 on the front wall of the housing 20. Therefore, a vent 41 is provided at the bottom of the touch-screen operating device 40, that is, above the gap between the top opening of the brewing chamber 100 and the powder-water premixing system 10, to discharge the steam.

[0094] Preferably, an exhaust device such as a fan can be provided in the vent 41. When the exhaust device is working, the efficiency of steam exhaust can be improved.

[0095] Example 2

[0096] This embodiment provides a brewing control method. The brewing control method controls the coffee brewing process based on the coffee machine provided in the first embodiment. The brewing control method specifically includes the following steps:

[0097] Step S10: During the process of the powder-water premixing system 10 unloading the materials into the brewing chamber 100, the air blowing and stirring unit 500 is controlled to start and blow air into the brewing chamber 100; and / or, after the powder-water premixing system 10 completes unloading the materials, the air blowing and stirring unit 500 is controlled to start and blow air into the brewing chamber 100.

[0098] Specifically, in this embodiment, the powder-water premixing system 10 is first used to feed materials into the brewing chamber 100, specifically realizing the feeding of water and powder. While feeding, the air blowing and stirring unit 500 is controlled to start, and air is blown into the brewing chamber 100 for stirring.

[0099] Optionally, in step S10, the air volume of the air blowing and stirring unit 500 is adjustable. The air blowing and stirring unit 500 has multiple gears, with different gears having different air volumes, with higher gears increasing the air volume. In this embodiment, the control module of the coffee machine stores programs corresponding to multiple different coffee recipes, and different coffee recipes correspond to different gears of the air blowing and stirring unit 500. The user can select a coffee recipe, and the program automatically controls the setting of the gear of the air blowing and stirring unit 500. The control module can also intermittently control the start and stop of the air blowing and stirring unit 500 according to different coffee recipes.

[0100] Preferably, the user can also flexibly select the gear position and start and stop of the above-mentioned blowing and stirring unit 500 through the touch screen operating device 40.

[0101] Figure 12 Schematic diagram showing the display of the touch screen operation device in the brewing control method provided by the second embodiment of the present invention. Figure 12 Through the beverage setting interface on the display screen of the touch screen operating device 40, the gear of the blowing and stirring unit 500 can be set, and the stirring intensity, the start stirring time and the stop stirring time can be set. It should be noted that in the process of making a beverage, the stirring of water and powder can be achieved in multiple stages, such as Figure 12 The mixing process is divided into four stages.

[0102] Step S20: After the air blowing and stirring unit 500 stops blowing, the control module controls the movement of the closing unit 200 to control the forward rotation of the movable drive device, driving the closing cover body 210 to move along the movable guide frame 220 to the sealing position 1 at the top opening of the brewing chamber 100, and closes the top opening of the brewing chamber 100.

[0103] Step S30: pressurize the brewing chamber 100 to perform drip filtering of the coffee liquid.

[0104] In this embodiment, the inflation and pressurization unit 600 is specifically controlled to start up, pressurize the brewing chamber 100, and perform drip filtering of the coffee liquid.

[0105] It should be noted that, during the pressurization process using the inflation and pressurization unit 600, the inflation and pressurization unit 600 is first controlled to pressurize to a preset pressurization time, so that the coffee liquid in the brewing chamber 100 is pressurized for dripping. Then, the pressurization is paused, and when the preset pause time is reached, the pressurization is resumed. The above-mentioned pressurization method of pausing for a period of time can utilize the original pressure in the brewing chamber 100 to slowly flow out the coffee liquid when the pressurization is paused, thereby avoiding problems such as excessive pressure in the brewing chamber 100 causing the coffee liquid to spray out. In this embodiment, the above-mentioned preset pressurization time can be, for example, 2 seconds, and the above-mentioned preset pause time can be, for example, 3 to 4 seconds.

[0106] Continue to refer to Figure 12 In this embodiment, the soaking time, liquid discharge time and waste discharge time during the coffee brewing process can also be set through the beverage setting interface of the display screen of the touch screen operating device 40.

[0107] Step S40: After the dripping of the coffee liquid is completed, the pressurization of the brewing chamber 100 is stopped.

[0108] Specifically, in step S40, the inflation and pressurization unit 600 is controlled to stop.

[0109] After step S40, a slag removal process can also be performed. During the slag removal process, the control module controls the movement of the closing unit 200 to control the reverse rotation of the mobile drive device, driving the closing cover body 210 to move along the movable guide frame 220 away from the top opening of the brewing chamber 100 and move to the open position 2. Then, the lifting drive device 710 is controlled to work so that the drip chamber 320 rises, thereby causing the filter structure 310 to rise to the slag discharge position. Finally, the mobile drive device is controlled to rotate forward, driving the closing cover body 210 to move along the movable guide frame 220 to the sealing position 1 at the top opening of the brewing chamber 100. In this process, the coffee grounds and other waste residues on the filter structure 310 at the slag discharge position can be pushed and fall into the slag bucket 800.

[0110] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A brewing control method, characterized in that: The brewing control method can control the brewing system of a beverage preparation device, wherein the brewing system of the beverage preparation device comprises a brewing chamber (100), a drip filter unit (300) and an air blowing and stirring unit (500); the drip filter unit (300) is arranged in the brewing chamber (100) and can receive water and powder and drip filter to form a beverage liquid; the air blowing and stirring unit (500) is connected to the drip filter unit (300) and can blow air into the brewing chamber (100) to stir the water and powder; The brewing control method comprises: S10, while water and powder enter the brewing chamber (100), controlling the air blowing and stirring unit (500) to start, blowing air into the brewing chamber (100) to stir the water and powder; and / or, after the water and powder are fed into the brewing chamber (100), the air blowing and stirring unit (500) is controlled to start, and air is blown into the brewing chamber (100) to stir the water and powder; S20, after the blowing and stirring unit (500) stops blowing, closing the top opening of the brewing chamber (100); S30, pressurizing the brewing chamber (100) to perform drip filtering of the beverage liquid.

2. The brewing control method according to claim 1, characterized in that: The brewing control method further includes: S40: After the drip filtration of the beverage liquid is completed, the pressurization of the brewing chamber (100) is stopped.

3. A brewing system for a beverage preparation device, characterized in that: The beverage liquid is prepared based on the brewing control method according to claim 1, and the brewing system of the beverage preparation device includes: A brewing chamber (100), arranged downstream of the powder-water premixing system (10) of the beverage preparation device, capable of containing water and powder; A drip filter unit (300) is provided in the brewing chamber (100), capable of receiving water and powdered materials and drip filtering them to form a beverage liquid; The air blowing and stirring unit (500) is connected to the bottom of the brewing chamber (100) and is connected to the drip filter unit (300), and can blow air into the brewing chamber (100) to stir water and powder.

4. The brewing system of the beverage preparation device according to claim 3, characterized in that The air blowing and stirring unit (500) includes a stirring air pump (510) and a stirring connecting pipe (520), wherein the stirring connecting pipe (520) is connected between the stirring air pump (510) and the brewing chamber (100), and is connected to the drip filter unit (300), and the stirring air pump (510) is configured to provide gas.

5. The brewing system of the beverage preparation device according to claim 3, characterized in that: The brewing system of the beverage preparation device further comprises an air-inflating and pressurizing unit (600), which is connected to the space above the brewing chamber (100) corresponding to the drip filter unit (300) and can inflate and pressurize the brewing chamber (100).

6. The brewing system of the beverage preparation device according to claim 5, characterized in that The inflation and pressurization unit (600) includes a pressurized air pump (610), a pressurized connecting pipe (620) and a porous distribution structure (630). The porous distribution structure (630) is covered on the top of the brewing chamber (100) and is connected to the pressurized connecting pipe (620) and the pressurized air pump (610). The pressurized air pump (610) is configured to provide pressurized gas, and the pressurized gas can enter the brewing chamber (100) from the porous distribution structure (630).

7. The brewing system of the beverage preparation device according to claim 3, characterized in that The brewing system further comprises a lifting drive unit (700), the lifting drive unit (700) being arranged below the brewing chamber (100) and extending into the brewing chamber (100), and being connected to the drip filter unit (300). The drip filter unit (300) can be lifted and lowered along the longitudinal axis of the brewing chamber (100) under the drive of the lifting drive unit (700) to switch between a brewing drip filter position and a slag discharge position.

8. The brewing system of the beverage preparation device according to claim 7, characterized in that The brewing system of the beverage preparation device further comprises a closing unit (200), which is movably arranged on the top of the brewing chamber (100) and can close / open the top opening of the brewing chamber (100).

9. The brewing system of the beverage preparation device according to any one of claims 3 to 8, characterized in that: The brewing system of the beverage preparation device further comprises a liquid outlet unit (400), which is arranged at the bottom of the brewing chamber (100) and can flow out the beverage liquid or waste liquid in the drip filter unit (300).

10. The brewing system of the beverage preparation device according to claim 9, characterized in that The liquid outlet unit (400) comprises a trigger structure (410) and a liquid outlet structure (420), wherein the trigger structure (410) is connected to the liquid outlet structure (420); The drip filter unit (300) can be raised and lowered along the longitudinal axis of the brewing chamber (100); when the drip filter unit (300) descends to the bottom of the brewing chamber (100), the trigger structure (410) can open the drip filter unit (300), and the beverage liquid or waste liquid can flow out through the liquid outlet structure (420).

11. The brewing system of the beverage preparation device according to claim 9, characterized in that The drip filter unit (300) comprises a filtering structure (310), a drip filter chamber (320), and a dripping structure (330) with a one-way valve function, wherein the filtering structure (310) is arranged at the top of the drip filter chamber (320), and the dripping structure (330) with a one-way valve function is arranged at the bottom of the drip filter chamber (320); When the drip filter unit (300) descends to the bottom of the brewing chamber (100), the trigger structure (410) can open the drip structure (330) with a one-way valve function, and the beverage liquid in the brewing chamber (100) can enter the liquid outlet structure (420).

12. The brewing system of the beverage preparation device according to claim 11, characterized in that The bottom of the dripping chamber (320) is arranged at an angle, the dripping structure (330) with a one-way valve function is arranged at the bottom of the dripping chamber (320), and a vent (321) is provided at the bottom of the dripping chamber (320). There are one or more vents (321), and the height of the vent (321) is higher than the height of the dripping structure (330) with a one-way valve function. The air blowing and stirring unit (500) is connected to the dripping chamber (320) through the vent (321).

13. The brewing system of the beverage preparation device according to claim 9, characterized in that The liquid outlet structure (420) comprises a three-way valve (421), a liquid discharge pipe (422) and a waste discharge pipe (423); the three-way valve (421) is connected to the bottom of the brewing chamber (100); the liquid discharge pipe (422) and the waste discharge pipe (423) are selectively connected to the three-way valve (421), respectively; the liquid discharge pipe (422) is configured to discharge beverage liquid, and the waste discharge pipe (423) is configured to discharge waste liquid.

14. A beverage preparation device, characterized in that The invention comprises a powder-water premixing system (10) and a brewing system of a beverage preparation device according to any one of claims 3 to 12, wherein the brewing system of the beverage preparation device is arranged downstream of the powder-water premixing system (10), and the powder-water premixing system (10) is configured to provide water and powder to the brewing chamber (100).

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