Beverage preparation method and beverage preparation device

Abstract

The invention discloses a beverage preparation method and a beverage preparation device. The beverage preparation device comprises a water pump, a brewing cavity, a liquid outlet pipeline and a valve body, the beverage preparation method comprises the steps that based on a first pump liquid parameter, a water pump is controlled to supply liquid to a brewing cavity for a first target duration, so that a valve body is switched to a first state, and then first flow liquid enters a liquid outlet pipeline; after the first target duration, based on a second pump liquid parameter, the water pump is controlled to supply liquid to the brewing cavity, so that second flow liquid enters the liquid outlet pipeline, and during the period, the valve body is intermittently or continuously in the first state; wherein the liquid pumping speed, corresponding to the second liquid pumping parameter, of the water pump is smaller than the liquid pumping speed, corresponding to the first liquid pumping parameter, of the water pump. According to the beverage preparation method disclosed by the invention, the liquid outlet flow of the beverage outlet is continuous and uniform, the extraction efficiency is high, and the beverage tastes good.

Description

Technical Field

[0001] The present application relates to the technical field of beverage preparation, and in particular to a beverage preparation method and a beverage preparation device. Background Art

[0002] In the existing beverage preparation technology field, beverage preparation devices are widely used in homes and commercial places. The beverage preparation device can be controlled by a program to achieve the process of brewing the beverage powder cake with the high-temperature brewing liquid, so as to obtain high-quality hot drinks for users to enjoy. The brewing process usually occurs in the brewing chamber of the beverage preparation device, in which the beverage powder cake used to brew the beverage and the high-temperature brewing liquid are fully mixed; if the beverage preparation device is a coffee machine, the beverage powder cake can be a coffee powder cake, and the high-temperature brewing liquid can be heated drinking water.

[0003] In order to meet the market demand for cold drinks or room-temperature drinks, existing beverage preparation devices are provided with a function of obtaining cold drinks or room-temperature drinks by low-temperature extraction of cold / room-temperature brewing liquid. However, currently, when making cold drinks / room-temperature drinks, beverage preparation devices have the following problems: low extraction rate, low drink acquisition efficiency, and discontinuous and uniform early liquid discharge of the drink. Summary of the invention

[0004] The purpose of the present application is to provide a beverage preparation method with good beverage taste, high beverage acquisition efficiency, and continuous and uniform liquid flow rate in the front stage of extraction.

[0005] Another object of the present application is to provide a beverage preparation device with good taste, high beverage acquisition efficiency, and continuous and uniform liquid flow rate in the front stage of extraction.

[0006] To achieve one of the above purposes, an embodiment of the present application provides a beverage preparation method, which is applied to a beverage preparation device, wherein the beverage preparation device comprises: a water pump, a brewing chamber disposed downstream of the water pump, a liquid outlet pipe disposed downstream of the brewing chamber, and a valve body disposed between the brewing chamber and the liquid outlet pipe; the beverage preparation method comprises:

[0007] Based on the first pump liquid parameter, controlling the water pump to supply liquid to the brewing chamber for a first target time, so that the valve body switches to a first state, thereby allowing a first flow rate of liquid to enter the liquid outlet pipe;

[0008] After the first target time, based on the second pump liquid parameter, the water pump is controlled to supply liquid to the brewing chamber so that the second flow rate of liquid enters the liquid outlet pipe, during which the valve body is intermittently or continuously in the first state;

[0009] The pumping speed of the water pump corresponding to the second pumping parameter is smaller than the pumping speed of the water pump corresponding to the first pumping parameter.

[0010] Compared with the prior art, the beneficial effects of the present application are: the first stage of beverage brewing is performed based on the first pump liquid parameter, and the second stage of beverage brewing is performed based on the second pump liquid parameter. By setting a larger pump liquid speed in the first stage of beverage brewing, it is helpful to open the valve body, connect the brewing chamber and the liquid outlet pipe, ensure that the liquid outlet flow rate of the beverage is continuous and uniform, and improve the liquid outlet efficiency of beverage preparation; by setting a smaller pump liquid speed in the second stage of beverage brewing, the brewing liquid and the beverage powder can be fully mixed and extracted, thereby improving the beverage extraction rate to ensure the extracted taste.

[0011] As a further improvement of an embodiment of the present application, the first pumping liquid parameter is used to characterize that the water pump pumps liquid at a first operating frequency, and the second pumping liquid parameter is used to characterize that the water pump pumps liquid at a second operating frequency; the first operating frequency is greater than the second operating frequency; or,

[0012] The first pumping parameter is used to characterize that the water pump pumps fluid at a first power, and the second pumping parameter is used to characterize that the water pump pumps fluid at a second power; the first power is greater than the second power.

[0013] As a further improvement of an embodiment of the present application, the second pumping liquid parameter satisfies at least one of the following characteristics:

[0014] The second pump liquid parameter is positively correlated with the temperature of the brewing liquid supplied to the brewing chamber;

[0015] The second pump liquid parameter is positively correlated with the thickness of the beverage powder cake supplied to the brewing chamber, wherein the beverage powder cake is used to brew a beverage;

[0016] The second pump liquid parameter is positively correlated with the grinding time of the beverage particles;

[0017] The second pump liquid parameter is positively correlated with the target concentration of the beverage;

[0018] The second pump liquid parameter is positively correlated with the target cup volume of the beverage;

[0019] The second pumping parameter is positively correlated with the grinding degree of the beverage particles.

[0020] As a further improvement of an embodiment of the present application, before controlling the water pump to supply liquid to the brewing chamber for a first target time based on the first pump liquid parameter, the beverage preparation method further includes:

[0021] Obtaining target production parameters of the beverage and the temperature of the brewing liquid supplied to the brewing chamber;

[0022] The pump liquid parameter of the water pump is calculated based on the target production parameter and the brewing liquid temperature to obtain the second pump liquid parameter.

[0023] As a further improvement of an embodiment of the present application, the target production parameters include the target concentration of the beverage, the target cup volume of the beverage and the grinding degree of the beverage particles, and the pump liquid parameter of the water pump is calculated based on the target production parameters and the brewing liquid temperature to obtain the second pump liquid parameter, including:

[0024] Calculating the grinding time of the beverage particles based on the target concentration and the target cup volume to obtain the grinding time of the beverage particles;

[0025] Calculating the thickness of the beverage powder cake based on the grinding time and the grinding degree to obtain the thickness of the beverage powder cake;

[0026] The second pumping parameter is determined based on the thickness of the beverage powder cake and the temperature of the brewing liquid.

[0027] As a further improvement of an embodiment of the present application, after obtaining the second pump liquid parameter, the beverage preparation method further includes:

[0028] Determining whether the second pump fluid parameter is less than or equal to a first parameter threshold and greater than or equal to a second parameter threshold;

[0029] When the second pump fluid parameter is less than or equal to the first parameter threshold and greater than or equal to the second parameter threshold, controlling the water pump based on the second pump fluid parameter;

[0030] When the second pump fluid parameter is greater than the first parameter threshold, updating the second pump fluid parameter to the first parameter threshold, and controlling the water pump based on the first parameter threshold;

[0031] When the second pump fluid parameter is less than the second parameter threshold, updating the second pump fluid parameter to the second parameter threshold, and controlling the water pump based on the second parameter threshold;

[0032] Wherein, the working power of the water pump represented by the first parameter threshold is greater than the working power of the water pump represented by the second parameter threshold; or, the working frequency of the water pump represented by the first parameter threshold is greater than the working frequency of the water pump represented by the second parameter threshold;

[0033] The second parameter threshold is set as follows: when the water pump pumps liquid at the second parameter threshold, the valve body is in the first state.

[0034] As a further improvement of an implementation manner of the present application, the first target duration satisfies at least one of the following characteristics:

[0035] The first target duration is negatively correlated with a first extraction flow rate corresponding to the first pump liquid parameter;

[0036] The first target duration is positively correlated with the grinding degree of the beverage particles;

[0037] The first target duration is positively correlated with the grinding duration of the beverage particles;

[0038] The first target duration is positively correlated with the target concentration of the beverage;

[0039] The first target duration is positively correlated with the target cup size of the beverage;

[0040] The first target duration is positively correlated with the volume of the liquid outlet pipe;

[0041] The first target duration is positively correlated with a force parameter for switching the valve body to the first state.

[0042] As a further improvement of an embodiment of the present application, before controlling the water pump to supply liquid to the brewing chamber for a first target time based on the first pump liquid parameter, the beverage preparation method further includes:

[0043] Acquiring target production parameters of the beverage and a force parameter for switching the valve body to the first state;

[0044] The pumping time of the water pump is calculated based on the target manufacturing parameters and the force parameters to obtain the first target time.

[0045] As a further improvement of an embodiment of the present application, the target production parameters include the target concentration of the beverage, the target cup volume of the beverage, and the grinding degree of the beverage particles, and the pumping time of the water pump is calculated based on the target production parameters and the force parameter to obtain the first target time, including:

[0046] Calculating the grinding time of the beverage particles based on the target concentration and the target cup volume to obtain the grinding time of the beverage particles;

[0047] Calculating the extraction flow rate of the water pump under the first pump liquid parameter based on the grinding time and the grinding degree to obtain a first extraction flow rate corresponding to the first pump liquid parameter;

[0048] The first target duration is determined based on the pumping speed corresponding to the first pumping parameter and the force parameter.

[0049] As a further improvement of an embodiment of the present application, the method satisfies at least one of the following features:

[0050] The first target duration is 2-4 seconds;

[0051] The first pump fluid parameter corresponds to the full operating frequency of the water pump;

[0052] The second pump fluid parameter corresponds to a cut-off frequency of the water pump, and the range of the cut-off frequency is 1 / 8-3 / 8 of the full operating frequency.

[0053] As a further improvement of an embodiment of the present application, before controlling the water pump to supply liquid to the brewing chamber for a first target time based on the first pump liquid parameter, the beverage preparation method further includes:

[0054] Based on the first pump liquid parameter, the water pump is controlled to supply liquid to the brewing chamber for a second target time so that a third flow brewing liquid is supplied to the brewing chamber and maintained in the brewing chamber; the brewing chamber contains a beverage powder cake.

[0055] As a further improvement of an embodiment of the present application, the beverage preparation method further includes at least one of the following:

[0056] Before controlling the water pump to supply liquid to the brewing chamber for a second target time period based on the first pump liquid parameter, controlling the water pump to supply brewing liquid with a fourth flow rate to the brewing chamber based on the third pump liquid parameter, wherein the temperature of the brewing liquid with the fourth flow rate is lower than the temperature of the brewing chamber;

[0057] During the second target time period when the water pump is controlled to supply liquid to the brewing chamber based on the first pump liquid parameter, the drain mechanism downstream of the brewing chamber is controlled to open to empty the liquid outlet pipe.

[0058] As a further improvement of an embodiment of the present application, the beverage preparation device has a hot beverage preparation mode for preparing high-temperature beverages, and a low-temperature beverage preparation mode for preparing room-temperature beverages or cold beverages, and the method further includes:

[0059] In response to receiving a low-temperature beverage preparation instruction, based on the first pump liquid parameter, controlling the water pump to supply liquid to the brewing chamber for a first target time, and after the first target time, controlling the water pump to supply liquid to the brewing chamber based on the second pump liquid parameter until the beverage preparation is completed;

[0060] In response to receiving the hot drink preparation instruction, the water pump is controlled to supply liquid to the brewing chamber at full power or full operating frequency until the drink preparation is completed.

[0061] The present application also provides a beverage preparation device, comprising:

[0062] Water pump;

[0063] A brewing chamber, arranged downstream of the water pump;

[0064] A liquid outlet pipe is arranged downstream of the brewing chamber;

[0065] A valve body, arranged between the brewing chamber and the liquid outlet pipe;

[0066] A controller is communicatively connected to the water pump, and the controller is configured to execute the beverage preparation method as described in any of the above embodiments.

[0067] As a further improvement of an embodiment of the present application, the beverage preparation device has a hot beverage preparation mode for preparing high-temperature beverages, and a low-temperature beverage preparation mode for preparing room-temperature beverages or cold beverages, and the beverage preparation device further includes:

[0068] A heating module is arranged between the water pump and the brewing chamber;

[0069] A bypass pipeline is arranged between the water pump and the brewing chamber;

[0070] A control valve is respectively connected to the water pump, the heating module and the bypass pipeline. The control valve is communicatively connected to the controller. The control valve is used to control the connection from the water pump to the heating module when the controller receives a hot drink preparation instruction. The control valve is also used to control the connection from the water pump to the bypass pipeline when the controller receives a low-temperature drink preparation instruction.

[0071] As a further improvement of an embodiment of the present application, the beverage preparation device further includes at least one of the following features:

[0072] The beverage preparation device further comprises a first beverage outlet and a second beverage outlet, and the downstream of the liquid outlet pipe is respectively connected to the first beverage outlet and the second beverage outlet;

[0073] The valve body comprises a valve ball and an elastic member drivingly connected to the valve ball; the liquid outlet pipe has a liquid outlet connected to the brewing chamber; the valve ball is used to open or close the liquid outlet; the elastic member is used to hold the valve ball at the liquid outlet to close the liquid outlet, and to provide a restoring force to restore the valve ball to the liquid outlet; when the valve body is in the first state, the liquid outlet is open;

[0074] The beverage preparation device further comprises a liquid discharge mechanism disposed downstream of the brewing chamber, and the liquid discharge mechanism is communicated with the liquid outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 Schematic diagram of a beverage preparation device in one embodiment of the present application.

[0076] Figure 2 Schematic diagram of the water path of a beverage preparation device in one embodiment of the present application.

[0077] Figure 3 It is a schematic diagram of a brewing device from a first viewing angle in one embodiment of the present application.

[0078] Figure 4 It is a schematic diagram of a brewing device from a second viewing angle in one embodiment of the present application.

[0079] Figure 5 In one embodiment of the present application, Figure 4 Schematic cross-sectional view along line SL.

[0080] Figure 6 Schematic diagram of an outlet assembly of a beverage preparation device in one embodiment of the present application.

[0081] Figure 7 It is a schematic flow chart of a beverage preparation method in one embodiment of the present application.

[0082] Figure 8 It is a schematic diagram of the process of determining the first target duration in one embodiment of the present application.

[0083] Fig. 9 It is a schematic diagram of the process of determining the first target duration in one embodiment of the present application.

[0084] Fig.10 It is a schematic diagram of a flow chart for determining the second pump fluid parameter in one embodiment of the present application.

[0085] Fig.11 It is a schematic diagram of a flow chart for determining the second pump fluid parameters in one embodiment of the present application.

[0086] In the figure: 10, beverage preparation device; 100, brewing device; 101, upper piston; 102, lower piston; 11, water pump; 12, brewing chamber; 120, brewing cylinder; 121, filling opening; 13, liquid outlet pipeline; 131, liquid outlet; 14, valve body; 141, valve ball; 142, elastic member; 15, controller; 161, first connecting rod; 162, second connecting rod; 17, channel outlet; 21, grinding device; 22, outlet assembly; 221, first beverage outlet; 222, second beverage outlet; 223, liquid outlet; 224, beverage inlet; 225, liquid inlet; 23, water storage tray; 30, control valve; 31, first end; 32, second end; 33, third end; 40, heating module; 41, liquid inlet end; 42, liquid outlet end; 50, liquid supply source; 60, bypass pipeline. DETAILED DESCRIPTION

[0087] The present application will be described in detail below in conjunction with the specific implementations shown in the accompanying drawings. However, these implementations do not limit the present application, and any structural, methodological, or functional changes made by a person of ordinary skill in the art based on these implementations are all included in the protection scope of the present application.

[0088] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0089] The terms "upstream" and "downstream" refer to the relative direction of the fluid flow in the fluid passage. For example, "upstream" refers to the direction from which the fluid flows, while "downstream" refers to the direction to which the fluid flows.

[0090] It should be understood that the terms used herein, such as "upper", "above", "lower", "below", etc., indicating spatial relative positions, are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the drawings. The terms of spatial relative positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings.

[0091] The beverage preparation device and beverage preparation method in the specific embodiments of the present application are described by taking a device or method capable of preparing coffee as an example.

[0092] like Figure 1 As shown, one embodiment of the present application provides a beverage preparation device 10 .

[0093] like Figures 1 to 5 As shown, the beverage preparation device 10 comprises a brewing device 100. The components included in the brewing device 100 can be considered as the components included in the beverage preparation device 10.

[0094] In one embodiment, the beverage preparation device 10 is configured to brew coffee using coffee particles as beverage particles, and the coffee particles can be, for example, coffee beans. The beverage preparation device 10 can be an automatic beverage preparation device, which can grind beverage particles, fill the beverage powder ground from the beverage particles into the brewing device 100, press the beverage powder into a beverage powder cake in the brewing device 100, and supply the brewing liquid to the brewing device 100 to brew the beverage, so that users can enjoy high-quality beverages conveniently and quickly.

[0095] like Figure 1 and Figure 2 As shown, the beverage preparation device 10 includes a water pump 11. When the water pump 11 is started, it can supply brewing liquid to the downstream. In some embodiments, the brewing liquid can be water, for example. In addition to supplying water to the downstream, the water pump 11 can also provide other types of liquids to the downstream.

[0096] like Figures 1 to 5 As shown, the beverage preparation device 10 comprises a brewing chamber 12. In one embodiment, the beverage preparation device 10 comprises a brewing device 100, and the brewing device 100 comprises the brewing chamber 12.

[0097] The brewing chamber 12 is used to fill beverage powder such as coffee powder. In one embodiment, the brewing chamber 12 is formed in a brewing cylinder 120; in this embodiment, the beverage preparation device 10 includes the brewing cylinder 120; in a specific embodiment, the beverage preparation device 10 includes the brewing device 100, and the brewing device 100 includes the brewing cylinder 120.

[0098] In one embodiment, the brewing cylinder 120 is cylindrical in shape; the hollow structure formed inside the brewing cylinder 120 is used to form the brewing cavity 12 .

[0099] In one embodiment, the brewing chamber 12 comprises a filling opening 121 for filling beverage powder, and the beverage powder can be filled into the brewing chamber 12 through the filling opening 121 .

[0100] In one embodiment, the brewing cylinder 120 is placed obliquely; in another embodiment, the brewing cylinder 120 is placed vertically. Figure 5 In one embodiment, the brewing cylinder 120 has two positions. In the first position, Figure 5 As shown, the brewing cylinder 120 is placed vertically, and in the second position state, the brewing cylinder 120 is placed obliquely. The first position state may correspond to the position state of adding beverage powder ground into the brewing chamber 12 in the beverage preparation method; in one embodiment, the first position state may correspond to the state of adding coffee powder into the brewing chamber 12. The second position state may correspond to the state of inputting brewing liquid into the brewing chamber 12; in one embodiment, the second position state may correspond to the state of the water pump 11 inputting brewing liquid into the brewing chamber 12. The second position state may also correspond to the state of processing the beverage powder (for example, applying pressure) to form a beverage powder cake.

[0101] In one embodiment, the first position state is rotated along the first direction R to switch to the inclined second position state.

[0102] The brewing chamber 12 is disposed downstream of the water pump 11. In one embodiment, the liquid outlet of the water pump 11 is connected to the brewing chamber 12. In the present application, the term "connected to" and related expressions include direct connection or indirect connection through other components, which will not be repeated in the following text.

[0103] The beverage preparation device 10 comprises a liquid outlet pipe 13 . In one embodiment, the beverage preparation device 10 comprises a brewing device 100 , and the brewing device 100 comprises a portion of the liquid outlet pipe 13 .

[0104] The liquid outlet pipe 13 is disposed downstream of the brewing chamber 12. In one embodiment, the liquid outlet end of the brewing chamber 12 is connected to the liquid outlet pipe 13.

[0105] In one embodiment, the liquid outlet pipe 13 has a liquid outlet 131 connected to the brewing chamber 12. In one embodiment, the beverage preparation device includes at least one beverage outlet, and the prepared beverage can enter the beverage outlet through the liquid outlet pipe 13 for the user to take. In a specific embodiment, the liquid outlet end of the brewing chamber 12 is connected to the liquid outlet 131.

[0106] The beverage preparation device 10 comprises a valve body 14. In one embodiment, the beverage preparation device 10 comprises a brewing device 100, and the brewing device 100 comprises a valve body 14.

[0107] The valve body 14 is disposed between the brewing chamber 12 and the liquid outlet pipe 13. In one embodiment, the valve body 14 allows one-way communication from the brewing chamber 12 to the liquid outlet pipe 13.

[0108] In one embodiment, the valve body 14 is disposed at the liquid outlet 131 .

[0109] In one embodiment, the valve body 14 has a first state, in which the liquid in the brewing chamber 12 can pass through the valve body 14 into the liquid outlet pipe 13 and be output to the beverage outlet. In one embodiment, the valve body 14 has a second state, in which the liquid in the brewing chamber 12 is blocked by the valve body 14 and cannot enter the liquid outlet pipe 13. In one embodiment, the valve body 14 has the first state and the second state, and the valve body 14 can switch between the first state and the second state.

[0110] In one embodiment, the valve body 14 is in the second state when no external force is applied. In one embodiment, the valve body 14 switches from the second state to the first state when an external force is applied. In a specific embodiment, the valve body 14 switches from the second state to the first state when the upstream liquid pressure is applied.

[0111] like Figure 1 and Figure 2 As shown, the beverage preparation apparatus 10 includes a controller 15 .

[0112] The controller 15 is configured to execute a beverage preparation method. The beverage preparation method may be configured according to any embodiment provided in the present application.

[0113] In one embodiment, the controller 15 includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, it is used to implement the beverage preparation method in any embodiment of the present application.

[0114] In one embodiment, the controller 15 is in communication connection with the water pump 11. In this embodiment, the water pump 11 is controlled by the controller 15 to operate.

[0115] The beverage preparation device has a hot beverage preparation mode for preparing high-temperature beverages, and a low-temperature beverage preparation mode for preparing normal-temperature beverages or cold beverages.

[0116] In one embodiment, the beverage preparation device 10 includes a heating module 40. The heating module 40 is used to heat liquid such as brewing liquid; the brewing liquid is input from the liquid inlet end 41 of the heating module and then heated when it flows out from the liquid outlet end 42 of the heating module. In one embodiment, the heating module 40 is an electric heating plate.

[0117] In one embodiment, the heating module 40 is electrically connected to the controller 15. The heating module 40 is controlled by the controller 15 to start or stop or adjust the heating temperature.

[0118] In one embodiment, the heating module is disposed between the water pump 11 and the brewing chamber 12. In this way, the beverage preparation device 10 can prepare beverages with a higher temperature, such as hot beverages. In one embodiment, the beverage with a higher temperature is 45 to 85 degrees Celsius. In one embodiment, the beverage preparation device 10 including the heating module 40 can prepare hot brewed coffee.

[0119] In a specific embodiment, the beverage preparation device 10 also includes a bypass pipe 60, which is arranged between the water pump 11 and the brewing chamber 12. Based on this, the water pump 11 can directly supply liquid to the brewing chamber 12 or the liquid outlet 223 through the bypass pipe 60 without passing through the heating module 40, thereby facilitating the realization of diversified beverage preparation, such as cold brewed beverages or room temperature water.

[0120] The beverage preparation device 10 includes a heating module 40 and a bypass line 60, so that a liquid supply path from the water pump 11 through the heating module 40 to the brewing chamber 12 and a liquid supply path from the water pump 11 through the bypass line 60 to the brewing chamber 12 are formed; when preparing a low-temperature beverage, the water pump 11 supplies brewing liquid to the brewing chamber 12 through the bypass line 60 without passing through the heating module 40, which can avoid the influence of the heating temperature or residual temperature of the heating module 40 on the temperature of the brewing liquid, thereby ensuring the preparation temperature of the low-temperature beverage. In one embodiment, the beverage preparation device 10 includes a control valve 30.

[0121] In one embodiment, the control valve 30 is respectively connected to the water pump 11, the heating module 40 and the bypass pipeline 60. The control valve 30 is communicatively connected to the controller.

[0122] In one embodiment, the control valve 30 can be operated to control the communication from the water pump 11 to the heating module 40, or the communication from the water pump 11 to the bypass line 60. In this way, the switching of the two liquid supply paths is achieved.

[0123] Specifically, the control valve 30 is used to control the connection from the water pump 11 to the heating module 40 when the controller receives a hot drink preparation instruction, so as to provide a high-temperature brewing liquid to the brewing chamber 12 for hot drink preparation. The control valve 30 is also used to control the connection from the water pump 11 to the bypass line 60 when the controller receives a low-temperature drink preparation instruction, so as to provide a cold / normal-temperature brewing liquid to the brewing chamber 12 for low-temperature drink preparation.

[0124] When the control valve 30 controls the connection from the water pump 11 to the heating module 40, the beverage preparation device 10 can prepare hot beverages. When the control valve 30 controls the connection from the water pump 11 to the bypass line 60, the beverage preparation device 10 can prepare low-temperature beverages. In one embodiment, the low-temperature beverage is 0 to 35 degrees Celsius.

[0125] In one embodiment, the beverage preparation method is called when the control valve 30 controls the connection from the water pump 11 to the bypass line 60. In this way, the beverage preparation method can be called in the case of cold / normal temperature water extraction to perform two-stage brewing extraction (first stage beverage brewing and second stage beverage brewing).

[0126] In one embodiment, the control valve 30 controls the connection from the water pump 11 to the heating module 40, and can control the water pump to pump liquid at full power or full working frequency until the beverage is prepared, that is, a one-step brewing and extraction is performed, thereby improving the hot extraction efficiency while ensuring the extraction rate. That is, when preparing a hot drink, a one-step brewing and extraction is performed, and the pumping parameters of the water pump correspond to the full power pumping or full working frequency pumping of the water pump.

[0127] In a specific embodiment, the control valve 30 includes a first end 31, a second end 32 and a third end 33. In an embodiment, the first end 31 of the control valve 30 is connected to the liquid outlet of the water pump 11, the second end 32 of the control valve 30 is connected to the liquid inlet 41 of the heating module 40, and the third end 33 of the control valve 30 is connected to the brewing chamber 12.

[0128] The control valve 30 is configured to connect the first end 31 of the control valve 30 with the second end 32 of the control valve 30 , or to connect the first end 31 of the control valve 30 with the third end 33 of the control valve 30 .

[0129] When the control valve 30 is connected between its first end 31 and its second end 32 , the liquid from the water pump 11 passes through the control valve 30 and enters the heating module 40 , and then enters the brewing chamber 12 after being heated by the heating module 40 .

[0130] When the control valve 30 is connected to the first end 31 and the third end 33 , the liquid from the water pump 11 passes through the control valve 30 and enters the bypass line 60 , and then enters the brewing chamber 12 .

[0131] In one embodiment, the control valve 30 can be switched between two states: connecting the first end 31 with the second end 32 and connecting the first end 31 with the third end 33, thereby realizing the two functions of hot extraction and low temperature extraction respectively.

[0132] In one embodiment, the control valve 30 can simultaneously conduct the first end 31 and the second end 32, and the first end 31 and the third end 33, so as to obtain a beverage at another temperature between the lower temperature and the higher temperature. The beverage at another temperature can be 25 to 40 degrees Celsius. The beverage temperature can be adjusted by adjusting the conduction opening between the first end 31 and the second end 32, and / or adjusting the conduction opening between the first end 31 and the third end 33.

[0133] In one embodiment, the control valve 30 is electrically connected to the controller 15. The control valve 30 is controlled by the controller 15 to switch the communication relationship between the first end 31, the second end 32 and the third end 33.

[0134] In one embodiment, the beverage preparation device 10 includes a first beverage outlet 221. The first beverage outlet 221 is connected to the downstream of the liquid outlet pipe 13 for outputting beverages. Figure 6 As shown, the beverage preparation device 10 comprises an outlet assembly 22 , and the outlet assembly 22 comprises a first beverage outlet 221 .

[0135] In one embodiment, the beverage preparation device 10 further includes a second beverage outlet 222 , which is connected to the downstream of the liquid outlet pipe 13 for outputting beverages, and the outlet assembly 22 further includes the second beverage outlet 222 .

[0136] In one embodiment, the beverage preparation device 10 includes a first beverage outlet 221 and a second beverage outlet 222, and the downstream of the liquid outlet pipe 13 is respectively connected to the first beverage outlet 221 and the second beverage outlet 222. In this way, the beverage preparation device 10 can prepare two cups of beverages at the same time, thereby improving the efficiency of beverage preparation.

[0137] In one embodiment, the beverage preparation device 10 includes a liquid outlet 223. The liquid outlet 223 is connected to the liquid outlet end 42 of the heating module and the downstream of the bypass line 60, and is used to directly output the liquid without passing through the brewing chamber 12, that is, the liquid outlet 223 can output the liquid supplied by the water pump 11 to the heating module 40 and heated by the heating module 40, and the liquid outlet 223 can also output the room temperature liquid supplied by the water pump 11 to the bypass line 60 or the liquid with a lower temperature in the refrigerator. In one embodiment, the beverage preparation device 10 includes an outlet assembly 22, and the outlet assembly 22 also includes a liquid outlet 223.

[0138] Exemplarily, the liquid outlet 223 can output water at room temperature or hot water. In this way, a cup of warm water required by the user can be quickly prepared by mixing water at room temperature and hot water. The temperature of the prepared warm water is controllable, which can enhance the customer experience.

[0139] Combination Figure 6 As shown, the beverage preparation device 10 includes an outlet assembly 22. In one embodiment, the outlet assembly 22 includes a beverage inlet 224, and a first beverage outlet 221 and a second beverage outlet 222 connected to the beverage inlet 224. The first beverage outlet 221 and the second beverage outlet 222 are connected to the liquid outlet pipe 13 through the beverage inlet 224.

[0140] In one embodiment, the outlet assembly 22 includes a liquid inlet 225 and a liquid outlet 223 connected to the liquid inlet 225. The liquid outlet 223 is connected to the liquid outlet 42 of the heating module 40 through the liquid inlet 225.

[0141] The liquid supply source 50 corresponding to the beverage preparation device 10 can be used as a part of the beverage preparation device 10, or can be implemented independently of the beverage preparation device 10. In one embodiment, the liquid supply source 50 is a water tank detachably connected to the beverage preparation device 10, and the user can add water to the water tank by himself or an external water purifier can automatically add water to the water tank; in one embodiment, the liquid supply source 50 is an external water purifier, that is, there is no need to set a water tank in the beverage preparation device 10, thereby reducing the volume of the beverage preparation device. Of course, the water tank can also be filled with other liquids by the user, such as beverages, carbonated water, etc., and the embodiments of the present application are described with drinkable water.

[0142] like Figure 1 As shown, the beverage preparation device 10 further includes a grinding device 21. The grinding device 21 is used to grind beverage particles into beverage powder, and the ground beverage powder is transmitted to the brewing chamber 12 for brewing and extraction. In one embodiment, the grinding device 21 is electrically connected to the controller 15, and the grinding device 21 processes the beverage particles under the control of the controller 15. The controller 15 can control the grinding time and grinding degree of the beverage particles by the grinding device 21.

[0143] The beverage preparation device 10 further comprises a liquid discharge mechanism, which is arranged downstream of the brewing chamber 12 and is connected to a liquid outlet pipe 13 .

[0144] The beverage preparation device 10 further comprises a water reservoir 23 .

[0145] The drainage mechanism can discharge the liquid in the brewing chamber 12 to the water storage tray 23, so as to prevent the splashing problem in the initial stage of pumping (pre-soaking stage) by the water pump 11; the drainage mechanism can also suck out the coffee liquid remaining in the discharge pipe 13 after the brewing process is completed; preferably, the process of sucking out the residual coffee liquid can be carried out after the brewing chamber 12 is reset (for example, switched to the first position state).

[0146] Furthermore, the drain mechanism may include a drain pump that is in communication with the controller 15 . When it is necessary to drain the liquid in the brewing chamber 12 or drain the liquid outlet pipe 13 , the drain pump is controlled to start so as to pump the liquid in the liquid outlet pipe 13 into the water storage tray 23 .

[0147] like Figure 5 As shown, the brewing device 100 includes an upper piston 101. The upper piston 101 can selectively engage with the brewing cylinder 120 from above the filling opening 121 to close the brewing chamber 12. In one embodiment, when the brewing cylinder 120 or the brewing chamber 12 is in the second position state, the upper piston 101 moves along the second direction M toward the brewing cylinder 120 to close the brewing chamber 12.

[0148] The brewing device 100 further includes a lower piston 102. The lower piston 102 is coupled to the brewing cylinder 120 and can move relative to the brewing cylinder 120 to change the volume of the brewing chamber 12.

[0149] like Figure 5 As shown, the valve body 14 includes a valve ball 141 and an elastic member 142 drivingly connected to the valve ball 141 .

[0150] The liquid outlet pipe 13 has a liquid outlet 131 communicating with the brewing chamber 12 .

[0151] The valve ball 141 is used to open or close the liquid outlet 131 .

[0152] The elastic member 142 is used to hold the valve ball 141 at the liquid outlet 131 to close the liquid outlet 131 .

[0153] The elastic member 142 is used to provide a restoring force to restore the valve ball 141 to the liquid outlet 131 .

[0154] When the valve body 14 is in the first state, the liquid outlet 131 is open.

[0155] The brewing chamber 12 is in the second position, the upper piston 101 moves relatively toward the lower piston 102 and engages with the brewing cylinder 120. At this time, the upper piston 101, the lower piston 102 and the brewing cylinder 120 together form a closed brewing chamber 12. When the water pump 11 pumps liquid into the brewing chamber 12 from the side of the lower piston 102, the liquid exerts a force on the valve ball 141, overcoming the force of the elastic member 142 to open the liquid outlet 131. At this time, the valve body 14 is in the first state. In this way, the beverage can be discharged from the liquid outlet pipe 13 to the beverage outlet (for example, the outlet assembly 22).

[0156] The valve ball 141 is constructed as a glass ball or a steel ball, and the elastic member 142 is constructed as a compression spring or a spring, which is low in cost and reliable in use.

[0157] The following will be combined Figures 1 to 6 The workflow of the beverage preparation device 10 is described. It can be understood that this process is one of the ways to implement the beverage preparation device 10 provided by the present application to achieve beverage preparation. In other embodiments, the following stages can be deleted, combined, and adjusted in order, and new stages can be added to achieve other corresponding functions.

[0158] Furthermore, the brewing device 100 further includes a first connecting rod 161 and a second connecting rod 162, and the first connecting rod 161, the second connecting rod 162 and the lower piston 102 are sequentially driven and connected.

[0159] In the first stage, the grinding device 21 works to grind beverage particles (e.g., coffee beans) and add the processed beverage powder (e.g., coffee powder) into the brewing chamber 12. At this time, the brewing chamber 12 can be in Figure 5 The first position shown facilitates the grinding device 21 to add the ground beverage powder into the brewing chamber 12 .

[0160] In the second stage, the brewing cylinder 120 rotates along the first direction R until it is aligned with the upper piston 101 in the second direction M; first, the upper piston 101 moves along the second direction M toward the brewing cylinder 120 to compact the ground beverage powder to form a beverage powder cake; then, the water pump 11 works and inputs the liquid into the brewing chamber 12 from bottom to top according to the preset pumping liquid parameters to extract and brew the beverage; after the liquid is fully mixed with the beverage powder cake in the brewing chamber 12, it is output to the beverage outlet (for example, the first beverage outlet 221 and the second beverage outlet 222) through the valve body 14 and the liquid outlet pipe 13.

[0161] In the third stage, the beverage extraction and brewing is completed, the upper piston 101 moves along the second direction M away from the brewing cylinder 120, the first connecting rod 161 rotates and lifts its end close to the second connecting rod 162, and the second connecting rod 162 extends in a direction parallel to the second direction M at this time, and through the rotation of the first connecting rod 161, the second connecting rod 162 moves along the second direction M, driving the lower piston 102 to move along the second direction M, holding up the beverage powder cake after extraction and brewing until it is located as a whole at the top of the brewing cylinder 120 close to the upper piston 101, and at this time the volume of the brewing chamber 12 is compressed, and the beverage powder cake after extraction and brewing, i.e. the beverage residue cake, is ejected. In the fourth stage, the upper piston 101 continues to move along the second direction M away from the brewing cylinder 120 until it returns to the initial position, and the second connecting rod 162 still extends into the brewing cylinder 120 and keeps the lower piston 102 at the top of the brewing cylinder 120, and in this state, the brewing cylinder 120 rotates in the opposite direction of the first direction R, and the upper surface of the lower piston 102 contacts the inner wall of the shell of the brewing device 100 during the rotation of the brewing cylinder 120, and the beverage residue is scraped off by the shell of the brewing device 100 during the rotation of the brewing cylinder 120, and the scraped beverage residue falls out of the brewing device 100 from the channel outlet 17 opened on the shell of the brewing device 100.

[0162] like Figure 7 As shown, one embodiment of the present application provides a beverage preparation method.

[0163] The beverage preparation method is applied in a beverage preparation device.

[0164] In one embodiment, the beverage preparation device can be configured as the beverage preparation device provided in any solution of the present application. In a specific embodiment, the beverage preparation device includes a controller, and the controller is used to execute the beverage preparation method in any embodiment of the present application.

[0165] Combination Figure 2 and Figure 5 As shown, the beverage preparation device 10 includes a water pump 11 , a brewing chamber 12 disposed downstream of the water pump 11 , a liquid outlet pipe 13 disposed downstream of the brewing chamber 12 , and a valve body 14 disposed between the brewing chamber 12 and the liquid outlet pipe 13 .

[0166] The beverage preparation method comprises the following steps.

[0167] Step S1, based on the first pump liquid parameter, control the water pump 11 to supply liquid to the brewing chamber 12 for the first target time, so that the valve body 14 switches to the first state, and then the first flow liquid enters the liquid outlet pipe 13. The water pump 11 is controlled to output the first flow liquid to the brewing chamber 12 according to the first pump liquid parameter, so that the valve body 14 switches to the first state, the first flow liquid enters the liquid outlet pipe 13 through the valve body 14, and the water pump 11 supplies liquid to the brewing chamber 12 for the first target time based on the first pump liquid parameter.

[0168] Step S2, after the first target time, based on the second pumping liquid parameter, control the water pump 11 to supply liquid to the brewing chamber 12, so that the second flow liquid enters the liquid outlet pipe 13, during which the valve body 14 is intermittently or continuously in the first state. After the first target time, control the water pump 11 to output the second flow liquid to the brewing chamber 12 according to the second pumping liquid parameter, the valve body 14 is intermittently or continuously in the first state, and the second flow liquid enters the liquid outlet pipe 13 through the valve body 14.

[0169] The pumping speed corresponding to the second pumping parameter is smaller than the pumping speed corresponding to the first pumping parameter.

[0170] In this way, the water pump 11 pumps liquid according to the first pumping liquid parameter and switches the state of the valve body 14, so that the liquid enters the liquid outlet pipe 13 smoothly. Even if the pumping liquid parameter is adjusted subsequently, the valve body 14 can be intermittently or continuously kept in the first state based on the liquid tension, thereby ensuring the smoothness of liquid flow and output.

[0171] The embodiment of the present application performs the first stage of beverage brewing based on the first pumping liquid parameter, and performs the second stage of beverage brewing based on the second pumping liquid parameter. The first stage of beverage brewing: the pumping liquid speed is fast, which is convenient for opening the valve body 14, connecting the brewing chamber 12 and the liquid outlet pipe 13, ensuring uniform liquid flow and improving liquid outlet efficiency. The second stage of beverage brewing: the pumping liquid speed is slow, which is convenient for fully mixing cold water or room temperature water with the beverage powder cake, achieving full extraction, improving the extraction rate of cold water or room temperature water, and ensuring the extracted taste.

[0172] Step S1 and step S2 may be implemented at the second stage in the workflow of the aforementioned beverage preparation device.

[0173] In one embodiment, Figure 5 As shown, after the upper piston 101 presses the beverage powder to form a beverage powder cake, the water pump 11 outputs a first flow liquid to the brewing chamber 12 according to the first pump liquid parameter, and the liquid applies force to the valve body 14, so that the valve body 14 is connected and allows the liquid in the brewing chamber 12 to enter the liquid outlet pipe 13 and finally flow out from the beverage outlet, and this process lasts for the first target time length; after the first target time length, the water pump 11 outputs a second flow liquid to the brewing chamber 12 according to the second pump liquid parameter, the valve body 14 has been opened based on the previous moment, and the second flow liquid is continuously input into the brewing chamber 12 after the first flow liquid, the valve body 14 is in an open state, and the second flow liquid continues to pass through the valve body 14 and the liquid outlet pipe 13 and flows out from the beverage outlet.

[0174] It is understandable that the amount of the first flow liquid supplied to the brewing chamber 12 is the same as the amount of the first flow liquid entering the liquid outlet pipe 13 through the valve body 14, ignoring the difference in liquid amount caused by a small amount of liquid absorbed by the coffee powder in the brewing chamber 12 or other factors.

[0175] The water pump 101 can be a DC water pump, an AC water pump, or a gear pump.

[0176] The first pumping parameter and the second pumping parameter may be any control parameter for controlling the pumping speed of the water pump 11. The first pumping parameter and the second pumping parameter may be the same parameter or different parameters.

[0177] In one embodiment, the water pump 11 is a DC water pump, and the pumping speed can be adjusted by adjusting the duty cycle. Accordingly, the first pumping parameter and the second pumping parameter can be duty cycle values ​​of PWM (Pulse Width Modulation) speed regulation.

[0178] In one embodiment, the water pump 11 is an AC water pump, and the pumping speed can be adjusted by frequency cutting or phase cutting. Accordingly, the first pumping parameter and the second pumping parameter can be the operating frequency or the operating voltage of the water pump.

[0179] In one embodiment, the water pump 11 is a gear pump, and the first pumping liquid parameter and the second pumping liquid parameter may be valve rotation amounts.

[0180] In one embodiment, the first pumping fluid parameter and the second pumping fluid parameter may be the power of the water pump.

[0181] The first flow rate liquid and the second flow rate liquid do not mean that the two liquids have different liquid volumes, but emphasize that the two liquids are liquids output by the water pump in two successive stages (first stage beverage brewing and second stage beverage brewing), and the two liquids themselves are different. In other words, the first flow rate liquid output in time period a has a liquid volume m, and the second flow rate liquid output in time period b has a liquid volume n, where a and b are different, and m and n can be the same or different.

[0182] The switching of the valve body 14 to the first state is intended to indicate that the state switching of the valve body 14 occurs at least according to the first flow rate liquid entering the brewing chamber 12. For example, the first flow rate liquid applies a force to the valve body 14, so that the valve body 14 is pushed open or flushed open, so that the brewing chamber 12 and the liquid outlet pipe 13 are connected through the valve body 14, and the first flow rate liquid enters the liquid outlet pipe 13 through the valve body 14 and finally flows out from the beverage outlet.

[0183] The first target duration is intended to indicate the duration of the liquid supply by the water pump 11 based on the first pumping parameter. In one embodiment, since the water pump 11 starts pumping liquid, events such as liquid entering the brewing chamber 12, the valve body 14 switching states, and liquid flowing into the liquid outlet pipe 13 will occur based on the flow of water, so the first target duration may also be the total duration of these events occurring and continuing.

[0184] After the first target time, the subsequent steps are implemented from the moment after the first target time with reference to the start time. For example, the water pump 11 supplies liquid to the brewing chamber 12 according to the first pumping liquid parameter at time t0, and after the first target time t1, the water pump 11 outputs liquid to the brewing chamber 12 according to the second pumping liquid parameter at time t0+t1.

[0185] The first state of the valve body 14 may be a state in which the valve body 14 is connected to the brewing chamber 12 and the liquid outlet pipe 13. The valve body 14 may be in the first state intermittently or continuously, that is, during the process of executing step S1 and step S2, or during the process in which the water pump 11 outputs liquid according to the first pumping liquid parameter and the second pumping liquid parameter, once the valve body 14 is connected to the brewing chamber 12 and the liquid outlet pipe 13, it will continue to connect the brewing chamber 12 and the liquid outlet pipe 13.

[0186] When the water pump 11 outputs liquid according to the first pumping parameter, the water pump 11 may have a first pumping speed; when the water pump 11 outputs liquid according to the second pumping parameter, the water pump 11 may have a second pumping speed. The magnitude relationship of the aforementioned pumping speeds may specifically be: the second pumping speed is less than the first pumping speed.

[0187] When the water pump 11 outputs liquid according to the first pumping parameter, the liquid may have a first liquid speed; when the water pump 11 outputs liquid according to the second pumping parameter, the liquid may have a second liquid speed. The magnitude relationship of the aforementioned pumping speeds may be specifically: the second liquid speed is less than the first liquid speed.

[0188] When the water pump 11 pumps liquid according to the second pumping parameter, the speed at which the liquid passes through the brewing chamber 12 (ie, the second extraction flow rate) may be 1-1.5 ml / s.

[0189] When the water pump 11 pumps liquid according to the first pumping parameter, the speed at which the liquid passes through the brewing chamber 12 (ie, the first extraction flow rate) may be 4-4.5 ml / s.

[0190] In one embodiment, the first pumping parameter is used to characterize that the water pump 11 pumps liquid at a first operating frequency, and the second pumping parameter is used to characterize that the water pump 11 pumps liquid at a second operating frequency. The first operating frequency is greater than the second operating frequency.

[0191] In a specific embodiment, the first operating frequency can be set to be greater than the second operating frequency by frequency cutting or frequency division. For example, the first operating frequency can be set to be the full operating frequency, and the second operating frequency can be set to be the frequency cutting frequency; for another example, the first operating frequency can be set to be the frequency cutting frequency divided by p, and the second operating frequency can be set to be the frequency cutting frequency divided by q, and p>q.

[0192] In other specific embodiments, the first operating voltage may be set to be greater than the second operating voltage by phase cutting.

[0193] By setting a higher operating frequency at the initial stage of brewing (the first stage of beverage brewing), it is helpful to open the valve body 14, connect the brewing chamber 12 and the liquid outlet pipe 13, ensure uniform liquid flow and improve liquid outlet efficiency. By setting a lower operating frequency during subsequent brewing (the second stage of beverage brewing), cold water or room temperature water can be fully mixed with the beverage powder to achieve full extraction, improve the extraction rate of cold water or room temperature water, and ensure the extracted taste.

[0194] In one embodiment, the first pumping parameter is used to characterize that the water pump pumps liquid at a first power, and the second pumping parameter is used to characterize that the water pump pumps liquid at a second power. The first power is greater than the second power.

[0195] In a specific embodiment, the first power corresponds to the rated power or full power of the water pump. In an embodiment, the first operating frequency corresponds to the first power.

[0196] In a specific embodiment, the second power is lower than the rated power or the full power. In an embodiment, the second operating frequency corresponds to the second power.

[0197] In one embodiment, the first target duration is related to the first extraction flow rate corresponding to the first pump liquid parameter; under the premise that other conditions remain unchanged, the first extraction flow rate corresponding to the first pump liquid parameter changes, and the first target duration changes accordingly; in other words, the first target duration can be determined according to the first extraction flow rate corresponding to the first pump liquid parameter. The first extraction flow rate can be understood as the flow rate of the liquid flowing through the brewing chamber 12 when the water pump 11 works with the first pump liquid parameter under the current conditions.

[0198] In a specific embodiment, the first target duration is negatively correlated with the first extraction flow rate corresponding to the first pump parameter. As the first extraction flow rate increases, the length of the corresponding first target duration decreases; when other conditions remain the same, a beverage preparation device with a higher first extraction flow rate corresponding to the first pump parameter can set a shorter first target duration.

[0199] In one embodiment, the first target time length is related to the volume of the liquid outlet pipe; under the premise that other conditions remain unchanged, the volume of the liquid outlet pipe changes, and the first target time length changes accordingly; in other words, the first target time length can be determined based on the volume of the liquid outlet pipe.

[0200] In a specific embodiment, the first target time is positively correlated with the volume of the liquid outlet pipe. The larger the volume, the longer the first target time. When other conditions remain the same, a beverage preparation device with a larger volume of the liquid outlet pipe can be set with a longer first target time.

[0201] In one embodiment, the first target time is related to the volume of the liquid outlet pipe and the first extraction flow rate corresponding to the first pumping parameter. The volume of the liquid outlet pipe (in ml) is defined as Vp, and the first extraction flow rate corresponding to the first pumping parameter is defined as Fq, then the first target time Tq at least satisfies:

[0202]

[0203] Wherein, X is a non-zero constant parameter used to keep the first target duration Tq greater than 0.

[0204] It can be understood that associating the first target time with the volume of the liquid outlet pipe can ensure that when the first target time ends, that is, when the first beverage brewing stage ends, the liquid entering the liquid outlet pipe 13 through the valve body 14 can at least fill the liquid outlet pipe 13, or in other words, at least some liquid can flow out into the user's cup through the valve body 14, the liquid outlet pipe 13 and the beverage outlet in sequence.

[0205] In the first beverage brewing stage: setting a larger pumping speed can help to quickly open the valve body 14, connect the brewing chamber 12 and the liquid outlet pipe 13, and improve the liquid outlet efficiency of beverage preparation; setting the first target time to be associated with the volume of the liquid outlet pipe 13 can ensure that the liquid at least fills the liquid outlet pipe 13 in the first beverage brewing stage with a larger pumping speed, and ensure that the liquid flowing out of the beverage outlet in this stage is continuous and uniform.

[0206] In some embodiments, as described above, the beverage preparation device includes a first beverage outlet and a second beverage outlet, and the first beverage outlet and the second beverage outlet are both connected to the downstream of the liquid outlet pipe 13. If the pumping speed of the first beverage brewing stage is low, or the first target time is low, it is easy for the liquid to flow out of only one of the first beverage outlet and the second beverage outlet during the first beverage brewing stage, or the liquid flowing out of the first beverage outlet and the second beverage outlet is uneven. In order to ensure the uniformity of the liquid discharge from both sides of the first beverage outlet and the second beverage outlet during the first beverage brewing stage, that is, the liquid discharge speed and the liquid discharge amount of the first beverage outlet and the second beverage outlet are consistent, a suitable pumping speed and the first target time can be set for the first beverage brewing stage; in the second beverage brewing stage: since the liquid has filled the liquid outlet pipe 13 during the first beverage brewing stage, even if the pumping speed is reduced during the second beverage brewing stage, the uniformity of the liquid discharge from both sides of the first beverage outlet and the second beverage outlet during the second beverage brewing stage can be ensured based on the liquid tension.

[0207] The setting of the first pump liquid parameter and the first target duration in the present application can ensure the uniformity of liquid discharge from both sides of the beverage outlet in the first beverage brewing stage and the second beverage brewing stage.

[0208] In one embodiment, the first target time is related to the degree of grinding of the beverage particles; under the premise that other conditions remain unchanged, the degree of grinding of the beverage particles changes, and the first target time changes accordingly; in other words, the first target time can be determined based on the degree of grinding of the beverage particles.

[0209] In a specific embodiment, the first target duration is positively correlated with the grinding degree of the beverage particles. The greater the grinding degree, the longer the first target duration; under the condition that other conditions remain the same, a beverage preparation device with a greater grinding degree can set a longer first target duration.

[0210] In one embodiment, the grinding degree of the beverage particles is related to the first extraction flow rate corresponding to the first pump liquid parameter; in a specific embodiment, the grinding degree of the beverage particles is negatively correlated with the first extraction flow rate corresponding to the first pump liquid parameter, and under the premise that other conditions remain unchanged, the greater the grinding degree, the smaller the corresponding first extraction flow rate. In one embodiment, the first extraction flow rate corresponding to the first pump liquid parameter can be determined according to the grinding degree of the beverage particles.

[0211] In one embodiment, the degree of grinding of the beverage particles can be characterized by the ratio of the amount of small particles to the amount of large particles; in one embodiment, the degree of grinding of the beverage particles is related to the amount of large particles; in one embodiment, the degree of grinding of the beverage particles is related to the amount of small particles.

[0212] When the beverage preparation method and the beverage preparation device are used to prepare coffee, the large particles may refer to coarse powder after grinding coffee beans; and the small particles may refer to fine powder after grinding coffee beans.

[0213] The greater the degree of grinding, the higher the proportion of small particles, that is, the more fine powder there is. Correspondingly, the smaller the degree of grinding, the lower the proportion of small particles, that is, the more coarse powder there is.

[0214] In one embodiment, the first target time is related to the grinding time of the beverage particles; under the premise that other conditions remain unchanged, the grinding time of the beverage particles changes, and the first target time changes accordingly; in other words, the first target time can be determined based on the grinding time of the beverage particles.

[0215] In a specific embodiment, the first target time is positively correlated with the grinding time of the beverage particles. The longer the grinding time is, the longer the first target time is; when other conditions remain the same, a beverage preparation device with a longer grinding time of beverage particles can set a longer first target time.

[0216] In one embodiment, the grinding time of the beverage particles is related to the first extraction flow rate corresponding to the first pump liquid parameter; in a specific embodiment, the grinding time of the beverage particles is negatively correlated with the first extraction flow rate corresponding to the first pump liquid parameter, and under the premise that other conditions remain unchanged, the longer the grinding time, the smaller the corresponding first extraction flow rate. In one embodiment, the first extraction flow rate corresponding to the first pump liquid parameter can be determined according to the grinding time of the beverage particles.

[0217] In one embodiment, the first extraction flow rate corresponding to the first pump liquid parameter is related to the grinding degree of the beverage particles and the grinding time of the beverage particles. In one embodiment, the first target time is related to the grinding degree of the beverage particles and the grinding time of the beverage particles.

[0218] When the grinding degree of the beverage particles has a maximum value and the grinding time of the beverage particles has a maximum value, the first extraction flow rate corresponding to the first pump liquid parameter is determined to be Fb; without considering the influence of the target concentration of the beverage, the value of the influence of the grinding degree of the beverage particles on the first extraction flow rate is determined to be ΔFr; without considering the influence of the grinding degree of the beverage particles, the value of the influence of the grinding time of the beverage particles on the first extraction flow rate is determined to be ΔFc, then the first extraction flow rate Fq corresponding to the first pump liquid parameter at least satisfies:

[0219] Fq=Fb+ΔFr+ΔFc.

[0220] In a specific embodiment, when the grinding degree of the beverage particles has a minimum value and the grinding time of the beverage particles has a maximum value, the first extraction flow rate corresponding to the first pump liquid parameter at this time is determined to be Fr; the grinding degree of the beverage particles (for example, the ratio of the amount of small particles to the amount of large particles) is defined as r, and the numerical range of the grinding degree of the beverage particles is defined to be distributed between R1 and R2, then the numerical value ΔFr of the influence of the grinding degree of the beverage particles on the first extraction flow rate at least satisfies:

[0221]

[0222] In a specific embodiment, when the grinding degree of the beverage particles has a maximum value and the grinding time of the beverage particles has a minimum value, the first extraction flow rate corresponding to the first pump liquid parameter at this time is determined to be Fc; the grinding time of the beverage particles is defined as Ta, and the numerical range of the grinding time of the beverage particles is defined to be distributed between Ta1 and Ta2, then the numerical value ΔFc of the influence of the grinding time of the beverage particles on the first extraction flow rate at least satisfies:

[0223]

[0224] In a preferred embodiment, the first extraction flow rate Fq (in ml / s) corresponding to the first pump liquid parameter at least satisfies:

[0225]

[0226] The first target duration Tq at least meets the following requirements:

[0227]

[0228] In this embodiment, the first extraction flow rate corresponding to the first pump liquid parameter is determined according to the grinding degree of the beverage particles and the grinding time of the beverage particles.

[0229] In one embodiment, the first target duration is related to the target concentration of the beverage; under the premise that other conditions remain unchanged, the target concentration of the beverage changes, and the first target duration changes accordingly; in other words, the first target duration can be determined based on the target concentration of the beverage.

[0230] In a specific embodiment, the first target duration is positively correlated with the target concentration of the beverage. The higher the target concentration, the longer the first target duration; when other conditions remain the same, the beverage preparation device can set a longer first target duration for a higher target concentration of the beverage.

[0231] In one embodiment, the target concentration of the beverage is related to the grinding time of the beverage particles; in a specific embodiment, the target concentration of the beverage is positively correlated with the grinding time of the beverage particles. Under the premise that other conditions remain unchanged, the greater the target concentration, the greater the corresponding grinding time. In one embodiment, the grinding time of the beverage particles can be determined according to the target concentration of the beverage.

[0232] In one embodiment, the target concentration of the beverage is related to the first extraction flow rate corresponding to the first pumping parameter; in a specific embodiment, the target concentration of the beverage is negatively correlated with the first extraction flow rate corresponding to the first pumping parameter. In one embodiment, the first extraction flow rate corresponding to the first pumping parameter can be determined according to the target concentration of the beverage.

[0233] In a specific embodiment, the target concentration of the beverage and the first grinding time tc of the grinding time of the beverage particles have a one-to-one correspondence. For example, when the target concentration of the beverage is the first concentration (e.g., light), the first grinding time tc can be set to 5 seconds; when the target concentration of the beverage is the second concentration (e.g., moderate), the first grinding time tc can be set to 6 seconds; when the target concentration of the beverage is the third concentration (e.g., strong), the first grinding time tc can be set to 7 seconds.

[0234] In this specific embodiment, it is equivalent to using a table lookup method to determine the first grinding time corresponding to the target concentration of the beverage. When the target output of the beverage (or target cup volume) is not considered, it is equivalent to using a table lookup method to determine the grinding time of the beverage particles corresponding to the target concentration of the beverage. In one embodiment, the first target time is related to the target cup volume of the beverage; under the premise that other conditions remain unchanged, the target cup volume of the beverage changes, and the first target time changes accordingly; in other words, the first target time can be determined according to the target cup volume of the beverage.

[0235] In a specific embodiment, the first target duration is positively correlated with the target cup size of the beverage. Under the premise that other conditions remain unchanged, the larger the target cup size, the larger the corresponding first target duration. The higher the target cup size, the longer the corresponding first target duration; under the premise that other conditions remain the same, the beverage preparation device can set a longer first target duration to cope with a higher target cup size of the beverage.

[0236] In one embodiment, the target cup size of the beverage is related to the grinding time of the beverage particles; in a specific embodiment, the target cup size of the beverage is positively correlated with the grinding time of the beverage particles. Under the premise that other conditions remain unchanged, the larger the target cup size, the longer the corresponding grinding time. In one embodiment, the grinding time of the beverage particles can be determined according to the target cup size of the beverage.

[0237] In one embodiment, the target cup volume of the beverage is related to the first extraction flow rate corresponding to the first pumping parameter; in a specific embodiment, the target cup volume of the beverage is negatively correlated with the first extraction flow rate corresponding to the first pumping parameter. In one embodiment, the first extraction flow rate corresponding to the first pumping parameter can be determined according to the target cup volume of the beverage.

[0238] In one embodiment, the grinding time of the beverage particles is related to the target concentration of the beverage and the target cup volume of the beverage. In one embodiment, the first target time is related to the target concentration of the beverage and the target cup volume of the beverage.

[0239] The second grinding time formed by the influence of the target cup volume of the beverage on the grinding time of the beverage particles is defined as ΔTh, and the grinding time Ta of the beverage particles at least satisfies:

[0240] Ta=tc+ΔTh.

[0241] In a specific embodiment, the target cup size of the beverage is defined as h, the influence weight coefficient of the target cup size of the beverage on the grinding time of the beverage particles is defined as b, and the numerical range of the target cup size of the beverage is defined to be distributed between H1 and H2. Then, the second grinding time ΔTh formed by the influence of the target cup size of the beverage on the grinding time of the beverage particles at least satisfies:

[0242] ΔTh=(h-H1)*b.

[0243] In this embodiment, the grinding time of the beverage particles is determined according to a first grinding time corresponding to a target concentration of the beverage and a second grinding time corresponding to a target cup size of the beverage.

[0244] The target concentration of the beverage, the target cup volume and the grinding degree of the beverage may be pre-set in the beverage preparation device, or pre-set before the beverage preparation method is implemented, or may be input by the user when operating the beverage preparation device or implementing the beverage preparation method. In the embodiment of the present application, the target concentration, target cup volume and grinding degree may all be parameters input / selected by the user when making a beverage.

[0245] In one embodiment, the first target duration is related to a force parameter for switching the valve body 14 to the first state; under the premise that other conditions remain unchanged, the force parameter changes, and the first target duration changes accordingly; in other words, the first target duration can be determined based on the force parameter.

[0246] In a specific embodiment, the first target time is positively correlated with the force parameter of the valve body switching to the first state. The larger the force parameter, the longer the first target time; when other conditions remain the same, a beverage preparation device including a valve body with a greater force parameter requirement can be set with a longer first target time.

[0247] The force parameter for switching the valve body 14 to the first state can be determined according to the mechanical characteristics of the mechanical structure of the valve body 14 .

[0248] In one embodiment, combining Figure 5 As shown, the valve body 14 includes a valve ball 141; the liquid outlet pipe 13 includes a liquid outlet 131 for connecting to the brewing chamber 12; the valve ball 141 is used to open or close the liquid outlet 131. When the valve body 14 is in the first state, the liquid outlet 131 is open. In this embodiment, the force parameter can be the value of the minimum driving force that moves the valve ball 141 and opens the liquid outlet 131.

[0249] In one embodiment, the valve body 14 includes an elastic member 142; the elastic member 142 drives and connects to the valve ball 141; the elastic member 142 is used to press the valve ball 141 to close the liquid outlet 131. In this embodiment, the force parameter may be a value of the minimum driving force that can overcome the elastic restoring force of the elastic member 142 and open the liquid outlet 131.

[0250] In a specific embodiment, the elastic member 142 is normally 22.3 mm, and when it is compressed to 16.7 mm, the valve ball 141 moves to a position capable of opening the liquid outlet 131. In this embodiment, the force parameter is the value of the driving force capable of compressing the elastic member 142 to 16.7 mm.

[0251] In a specific embodiment, the force parameter has a numerical value of 6N±10%.

[0252] By making the water pump 11 input liquid into the brewing chamber 12 according to the first pumping parameter corresponding to a higher pumping speed, the valve body 14 is switched to the first state (in particular, the valve ball 141 is lifted by the liquid). Even if the pumping speed in this stage is relatively high, the beverage outlet will not splash, because as described above, the setting of the discharge mechanism can discharge the residual liquid remaining in the liquid outlet pipe 13 etc. of the previous cup, and can also discharge the gas or liquid in the brewing chamber 12 or the liquid outlet pipe 13 during the making of the current cup.

[0253] The splashing refers to the residual drink or liquid in the components downstream of the brewing chamber 12, such as the liquid outlet pipe 13, after the preparation of the previous drink is completed. During the preparation of the current drink, when the water pump 11 inputs liquid into the brewing chamber 12 (for example, inputs liquid to soak the beverage powder cake) and exhausts gas, the exhausted gas may enter the liquid outlet pipe 13, etc., causing splashing.

[0254] In one embodiment, the first target duration is 2-4 seconds. In a specific embodiment, the first target duration is 3 seconds.

[0255] In one embodiment, the first pump liquid parameter corresponds to the full operating frequency, full power or rated power of the water pump 11. In this way, the valve body 14 structure is ensured to be affected by the first flow liquid and switch to the first state, thereby ensuring a continuous and uniform liquid flow rate at the beverage outlet and high efficiency in beverage preparation.

[0256] In one embodiment, before controlling the water pump 11 to supply liquid to the brewing chamber 12 for a first target time based on the first pump liquid parameter, the beverage preparation method further includes: Figure 8 The process of determining the first target duration can be configured as follows:

[0257] Step S011, obtaining target beverage production parameters and force parameters for the valve body 14 to switch to the first state.

[0258] Step S012, calculating the pumping time of the water pump 11 based on the target manufacturing parameters and the force parameters to obtain a first target time.

[0259] In one embodiment, step S011 and step S012 are performed before the water pump 11 is controlled to supply liquid to the brewing chamber 12 for a first target time period based on the first pump liquid parameter.

[0260] In one embodiment, combining Fig. 9 As shown, the step S011 includes:

[0261] Step P110, determining target production parameters;

[0262] Step P114, determining the force parameter for the valve body 14 to switch to the first state.

[0263] In one embodiment, the target production parameter includes at least one of a target concentration of the beverage, a target cup volume of the beverage, and a grinding degree of beverage particles.

[0264] In a preferred embodiment, Fig. 9 As shown, the process of determining the first target duration in this application can be configured in the following steps:

[0265] Step P111, determining the grinding degree of the beverage particles.

[0266] For example, the grinding degree of the beverage particles can be characterized by the ratio of the amount of small particles to the amount of large particles. For example, the grinding degree of the beverage particles is determined by the grinding device. Relatively speaking, the grinding device can be set to be related to the grinding degree of the beverage particles. The grinding degree of the beverage particles can be input / selected by the user when making the beverage. Step P112, determine the target cup size of the beverage.

[0267] For example, the target cup size of the beverage is set or input by the user. The target cup size may be a cup size of coffee. Exemplarily, the target cup size may be a large cup, a medium cup, or a small cup, or may be the number of milliliters input by the user.

[0268] Step P113, determine the target concentration of the beverage.

[0269] For example, the target concentration of the beverage is set or input by the user. The target concentration can be light, moderate, strong, etc.

[0270] The step P111, the step P112 and the step P113 may be executed simultaneously.

[0271] Step P114, determining the force parameter for the valve body 14 to switch to the first state.

[0272] For example, the force parameter is determined by the mechanical structure of the valve body 14 itself, and accordingly, the valve body 14 can be set in accordance with the force parameter.

[0273] Step P12, determining the grinding time of the beverage particles.

[0274] For example, step P12 may be provided after step P112 and step P113. For example, the grinding time of the beverage particles may be determined according to the target cup volume of the beverage and the target concentration of the beverage.

[0275] In one embodiment, the beverage preparation method provided in the present application, in particular the step of calculating the pumping time of the water pump 11 based on the target production parameters and the force parameters to obtain the first target time, may include: calculating the grinding time of the beverage particles based on the target concentration and the target cup volume to obtain the grinding time of the beverage particles.

[0276] Step P13, determining a first extraction flow rate corresponding to the first pumping parameter.

[0277] For example, step P13 can be arranged after step P12; for example, the first extraction flow rate corresponding to the first pumping parameter can be determined according to the grinding time of the beverage particles. For example, step P13 can be arranged after step P111; for example, the first extraction flow rate can be determined according to the grinding degree of the beverage particles. For example, step P13 can be arranged after step P114; for example, the first extraction flow rate can be determined according to the force parameter.

[0278] In one embodiment, the beverage preparation method provided in the present application, in particular the step of calculating the pumping time of the water pump 11 based on the target production parameter and the force parameter to obtain the first target time, may include: calculating the extraction flow rate of the water pump 11 under the first pumping parameter based on the grinding time and the grinding degree, to obtain the first extraction flow rate corresponding to the first pumping parameter.

[0279] Step P14, determining the first target duration.

[0280] For example, step P14 may be arranged after step P13; for example, the first target time length may be determined according to the first extraction flow rate; for example, the first target time length may be determined according to the volume of the liquid outlet pipe 13 .

[0281] In one embodiment, the beverage preparation method provided in the present application, in particular, the step of calculating the pumping time of the water pump 11 based on the target production parameter and the force parameter to obtain the first target time, may include: determining the first target time based on the first extraction flow rate corresponding to the first pumping parameter and the force parameter.

[0282] In one embodiment, the second pumping parameter is used to characterize that the water pump 11 pumps liquid at a second operating frequency or a second power. In a specific embodiment, the second operating frequency is an operating frequency generated by cutting the full operating frequency. In a specific embodiment, the second power is lower than the rated power or full power of the water pump 11.

[0283] In one embodiment, the second pump liquid parameter is related to the temperature of the brewing liquid supplied to the brewing chamber 12; under the premise that other conditions remain unchanged, the temperature of the brewing liquid supplied to the brewing chamber 12 changes, and the second pump liquid parameter changes accordingly; in other words, the second pump liquid parameter can be determined according to the temperature of the brewing liquid supplied to the brewing chamber 12.

[0284] In a specific embodiment, whether to use the second pumping parameter to characterize the pump 11 pumping liquid at the second operating frequency or the second power can be determined according to the temperature of the brewing liquid supplied to the brewing chamber 12. The second operating frequency is less than the full operating frequency; the second power is less than the rated power of the pump 11.

[0285] For example, when it is determined that the temperature of the brewing liquid supplied to the brewing chamber 12 is room temperature water (for example, 25 degrees Celsius) or cold water (for example, 0 to 8 degrees Celsius), it corresponds to room temperature water extraction or cold extraction, and the second pump liquid parameter is determined to be used to characterize that the water pump 11 pumps liquid at a second operating frequency less than the full operating frequency, or the second pump liquid parameter is determined to characterize that the water pump 11 pumps liquid at a second power less than the rated power; when it is determined that the temperature of the brewing liquid supplied to the brewing chamber 12 is hot water (for example, above 40 degrees Celsius), it corresponds to hot extraction, and the water pump 11 is determined to pump liquid at the full operating frequency, rated power, or maintain the current operating frequency or power pumping liquid.

[0286] In a specific embodiment, the second pump liquid parameter is positively correlated with the temperature of the brewing liquid supplied to the brewing chamber 12. The lower the temperature of the brewing liquid supplied to the brewing chamber 12, the lower the corresponding second pump liquid parameter; when other conditions remain the same, a beverage preparation device with a lower temperature of the brewing liquid supplied to the brewing chamber 12 can be set with a lower second pump liquid parameter.

[0287] In one embodiment, the temperature of the brewing liquid supplied to the brewing chamber 12 can be detected by setting a temperature sensor. In one embodiment, the water pump 11 extracts the brewing liquid from the liquid supply source 50 and outputs it to the brewing chamber 12, and the temperature sensor can be set at the liquid supply source 50, the water pump 11 or the brewing chamber 12.

[0288] In one embodiment, the second pumping liquid parameter is related to the thickness of the beverage powder cake; under the premise that other conditions remain unchanged, the thickness of the beverage powder cake in the brewing chamber 12 changes, and the second pumping liquid parameter changes accordingly; in other words, the second pumping liquid parameter can be determined according to the thickness of the beverage powder cake. The beverage powder cake is a beverage powder cake formed by pressing the beverage powder supplied to the brewing chamber 12.

[0289] The beverage powder cake and the brewing liquid are used to brew a beverage. The beverage powder cake is formed by pressing the beverage powder, which is formed by grinding beverage particles; specifically, the beverage powder cake can be formed by compacting the beverage powder. In one embodiment, before the water pump 11 works and inputs the brewing liquid into the brewing chamber 12, the beverage powder cake has been placed in the brewing chamber 12.

[0290] In a specific embodiment, the second pump liquid parameter is positively correlated with the thickness of the beverage powder cake. The thicker the beverage powder cake is, the more powerful the liquid can be used to impact it, and the higher the corresponding second pump liquid parameter is; when other conditions remain the same, a beverage preparation device with a thicker beverage powder cake can set a higher second pump liquid parameter. The beverage powder cake is a beverage powder cake formed by pressing the beverage powder supplied to the brewing chamber 12.

[0291] In one embodiment, the second pump liquid parameter is related to the temperature of the brewing liquid supplied to the brewing chamber 12 and the thickness of the beverage powder cake.

[0292] Taking the second pump liquid parameter used to characterize the pump liquid of the water pump 11 at the second working frequency as an example, the basic working frequency is defined as Pb, the temperature of the brewing liquid supplied to the brewing chamber 12 is defined as Tw, the influence weight coefficient of the brewing liquid temperature supplied to the brewing chamber 12 on the second working frequency is defined as z, the thickness of the beverage powder cake is defined as Hc, and the influence weight coefficient of the thickness of the beverage powder cake on the second working frequency is defined as x, then the second working frequency at least satisfies:

[0293] P=Pb*(z*Tw)*(x*Hc).

[0294] In one embodiment, the basic operating frequency Pb can be set to the lowest operating frequency Pmin allowed by the water pump 11. The lowest operating frequency Pmin can be set to: when the water pump 11 pumps liquid at the lowest operating frequency Pmin, the valve body 14 is in the first state; or, when the water pump 11 pumps liquid at the lowest operating frequency Pmin, the pressure exerted by the liquid on the valve body 14 is sufficient to cause the valve ball 141 to open the liquid outlet 131 or to compress the elastic member 142 to a preset length.

[0295] In one embodiment, the second pump liquid parameter is related to the grinding time of the beverage particles; under the premise that other conditions remain unchanged, the grinding time of the beverage particles changes, and the second pump liquid parameter changes accordingly; in other words, the second pump liquid parameter can be determined based on the grinding time of the beverage particles.

[0296] In a specific embodiment, the second pump liquid parameter is positively correlated with the grinding time of the beverage particles. The longer the grinding time, the higher the value of the corresponding second pump liquid parameter; when other conditions remain the same, a beverage preparation device with a longer grinding time of beverage particles can set a higher second pump liquid parameter.

[0297] In one embodiment, the grinding time of the beverage particles is related to the thickness of the beverage powder cake; in a specific embodiment, the grinding time of the beverage particles is positively correlated with the thickness of the beverage powder cake, and when other conditions remain the same, the longer the grinding time of the beverage particles, the thicker the corresponding beverage powder cake. In one embodiment, the thickness of the beverage powder cake can be determined according to the grinding time of the beverage particles.

[0298] In one embodiment, the second pump liquid parameter is related to the degree of grinding of the beverage particles; under the premise that other conditions remain unchanged, the degree of grinding of the beverage particles changes, and the second pump liquid parameter changes accordingly; in other words, the second pump liquid parameter can be determined based on the degree of grinding of the beverage particles.

[0299] In a specific embodiment, the second pump liquid parameter is positively correlated with the grinding degree of the beverage particles. The greater the grinding degree, the higher the value of the corresponding second pump liquid parameter; when other conditions remain the same, a beverage preparation device with a greater grinding degree can set a higher second pump liquid parameter.

[0300] In one embodiment, the grinding degree of the beverage particles is related to the thickness of the beverage powder cake; in a specific embodiment, the grinding degree of the beverage particles is negatively correlated with the thickness of the beverage powder cake, and when other conditions remain the same, the greater the grinding degree of the beverage particles, the smaller the thickness of the corresponding beverage powder cake. In one embodiment, the thickness of the beverage powder cake can be determined according to the grinding degree of the beverage particles.

[0301] In one embodiment, the grinding degree of the beverage particles can be characterized by the ratio of the amount of small particles to the amount of large particles.

[0302] When the beverage preparation method and the beverage preparation device are used to prepare coffee, the large particles may refer to coarse powder after grinding coffee beans; and the small particles may refer to fine powder after grinding coffee beans.

[0303] In one embodiment, the thickness of the beverage powder cake is related to the grinding degree of the beverage particles and the grinding time of the beverage particles. In one embodiment, the second pump liquid parameter is related to the grinding degree of the beverage particles and the grinding time of the beverage particles.

[0304] The diameter of the brewing chamber 12 is fixed, and the thickness of the beverage powder cake is related to the grinding time of the beverage particles, and the two may have a proportional coefficient d; the grinding time of the beverage particles is defined as Ta; the grinding degree of the beverage particles (for example, the ratio of the amount of small particles to the amount of large particles) is defined as r, then the thickness of the beverage powder cake Hc at least satisfies:

[0305] Hc=d*Ta*r.

[0306] In this embodiment, the thickness of the beverage powder cake is determined according to the grinding time of the beverage particles and the grinding degree of the beverage particles.

[0307] Specifically, when the diameter of the brewing chamber 12 is fixed, when the grinding degree of the beverage particles is fixed, the thickness of the beverage powder cake is positively correlated with the grinding time of the beverage particles. The numerical range of the grinding degree of the beverage particles is distributed between R1 and R2. When the grinding time of the beverage particles is fixed, the thickness of the beverage powder cake is negatively correlated with the grinding degree of the beverage particles.

[0308] In one embodiment, the second pump liquid parameter is related to the target concentration of the beverage; under the premise that other conditions remain unchanged, the target concentration of the beverage changes, and the second pump liquid parameter changes accordingly; in other words, the second pump liquid parameter can be determined based on the target concentration of the beverage.

[0309] In a specific embodiment, the second pumping parameter is positively correlated with the target concentration of the beverage. The higher the target concentration, the higher the value of the corresponding second pumping parameter; when other conditions remain the same, the beverage preparation device can set a higher second pumping parameter to cope with a higher target concentration.

[0310] In one embodiment, the target concentration of the beverage is related to the grinding time of the beverage particles; in a specific embodiment, the target concentration of the beverage is positively correlated with the grinding time of the beverage particles, and when other conditions remain the same, the greater the target concentration of the beverage, the longer the grinding time of the corresponding beverage particles. In one embodiment, the grinding time of the beverage particles can be determined according to the target concentration of the beverage.

[0311] In one embodiment, the target concentration of the beverage is related to the thickness of the beverage powder cake; in a specific embodiment, the target concentration of the beverage is positively correlated with the thickness of the beverage powder cake, and when other conditions remain the same, the greater the target concentration of the beverage, the thicker the corresponding beverage powder cake. In one embodiment, the thickness of the beverage powder cake can be determined according to the target concentration of the beverage.

[0312] In a specific embodiment, the target concentration of the beverage and the first grinding time tc in the grinding time of the beverage particles have a one-to-one correspondence.

[0313] In this specific embodiment, it is equivalent to using a table lookup method to determine the first grinding time corresponding to the target concentration of the beverage.

[0314] In one embodiment, the second pump liquid parameter is related to the target cup size of the beverage; under the premise that other conditions remain unchanged, the target cup size of the beverage changes, and the second pump liquid parameter changes accordingly; in other words, the second pump liquid parameter can be determined based on the target cup size of the beverage.

[0315] In a specific embodiment, the second pumping parameter is positively correlated with the target cup size of the beverage. The higher the target cup size, the higher the value of the corresponding second pumping parameter; when other conditions remain the same, the beverage preparation device can set a higher second pumping parameter to cope with a higher target cup size.

[0316] In one embodiment, the target cup size of the beverage is related to the grinding time of the beverage particles; in a specific embodiment, the target cup size of the beverage is positively correlated with the grinding time of the beverage particles, and when other conditions remain the same, the larger the target cup size of the beverage, the longer the grinding time of the corresponding beverage particles. In one embodiment, the grinding time of the beverage particles can be determined according to the target cup size of the beverage.

[0317] In one embodiment, the target cup volume of the beverage is related to the thickness of the beverage powder cake; in a specific embodiment, the target cup volume of the beverage is positively correlated with the thickness of the beverage powder cake, and when other conditions remain the same, the larger the target cup volume of the beverage, the thicker the corresponding beverage powder cake. In one embodiment, the thickness of the beverage powder cake can be determined according to the target cup volume of the beverage.

[0318] In one embodiment, the grinding time of the beverage particles is related to the target concentration of the beverage and the target cup volume of the beverage. In one embodiment, the second pump liquid parameter is related to the target concentration of the beverage and the target cup volume of the beverage.

[0319] The second grinding time formed by the influence of the target cup volume of the beverage on the grinding time of the beverage particles is defined as ΔTh, and the grinding time Ta of the beverage particles at least satisfies:

[0320] Ta=tc+ΔTh.

[0321] In a specific embodiment, the target cup size of the beverage is defined as h, the influence weight coefficient of the target cup size of the beverage on the grinding time of the beverage particles is defined as b, and the numerical range of the target cup size of the beverage is defined to be distributed between H1 and H2. Then, the second grinding time ΔTh formed by the influence of the target cup size of the beverage on the grinding time of the beverage particles at least satisfies:

[0322] ΔTh=(h-H1)*b.

[0323] In this embodiment, the grinding time of the beverage particles is determined according to a first grinding time corresponding to a target concentration of the beverage and a second grinding time corresponding to a target cup size of the beverage.

[0324] The target concentration of the beverage and the target cup volume of the beverage may be input by a user when operating a beverage preparation device or implementing a beverage preparation method.

[0325] Taking the second pumping parameter used to characterize the pump 11 pumping at the second operating frequency as an example, in a preferred embodiment, the second operating frequency at least satisfies:

[0326] P=Pb*(z*Tw)*(x*d*r*(tc+(h-H1)*b)).

[0327] In this way, the first target duration of the first brewing stage (first stage of brewing beverage) and the second pump liquid parameter of the second brewing stage (second stage of brewing beverage) can be calculated in association with the target concentration of the beverage selected by the user, the target cup volume of the beverage and the grinding degree of the beverage particles, thereby achieving precise control of the current beverage extraction and ensuring the extraction flavor and efficiency of the beverage.

[0328] In one embodiment, the second operating frequency is a frequency cutoff frequency of 1 / 8-3 / 8. In a specific embodiment, the second operating frequency is a frequency cutoff frequency of 2 / 8.

[0329] In one embodiment, the second pump liquid parameter corresponds to a cut frequency of 1 / 8-3 / 8 of the water pump 11. In a specific embodiment, the second pump liquid parameter corresponds to a cut frequency of 2 / 8 of the water pump 11. In this way, the extraction rate is improved, which is particularly suitable for low-temperature extraction scenarios such as cold water extraction or room temperature water extraction.

[0330] In one embodiment, before controlling the water pump 11 to supply liquid to the brewing chamber 12 for a first target time based on the first pump liquid parameter, the beverage preparation method further includes: Fig.10 The process of determining the second pump parameters shown can be configured in the following steps:

[0331] Step S021, obtaining target production parameters of the beverage and the temperature of the brewing liquid supplied to the brewing chamber 12. The brewing liquid is used to brew the beverage powder in the brewing chamber 12 to extract and form the beverage.

[0332] Step S022, calculating the pumping liquid parameter of the water pump 11 based on the target production parameter and the brewing liquid temperature to obtain a second pumping liquid parameter.

[0333] In one embodiment, step S021 and step S022 are performed before the water pump 11 is controlled to supply liquid to the brewing chamber 12 for the first target time based on the first pump liquid parameter. In other embodiments, step S021 and step S022 may also be performed at other positions before the water pump 11 is controlled to supply liquid to the brewing chamber 12 based on the second pump liquid parameter.

[0334] In one embodiment, combining Fig.11 As shown, the step S022 includes:

[0335] Step P210, determining target production parameters;

[0336] Step P214, determining the temperature of the brewing liquid supplied to the brewing chamber 12.

[0337] In one embodiment, the target production parameter includes at least one of a target concentration of the beverage, a target cup volume of the beverage, and a grinding degree of beverage particles.

[0338] In a preferred embodiment, Fig.11 As shown, the process of determining the second pump liquid parameter in this application can be configured in the following steps:

[0339] Step P211, determine the grinding degree of beverage particles.

[0340] For example, the grinding degree of the beverage particles can be characterized by the ratio of the amount of small particles to the amount of large particles. For example, the grinding degree of the beverage particles is determined by the grinding device, and the grinding device can be set accordingly to be related to the grinding degree of the beverage particles. The grinding degree of the beverage particles can be input / selected by the user when making a beverage.

[0341] The step P211 and the aforementioned step P111 may refer to the same step. That is, the grinding degree of the beverage particles only needs to be determined once for preparing a single beverage.

[0342] Step P212, determine the target cup size of the beverage.

[0343] For example, the target cup size of the beverage is set or input by the user. The target cup size may be a cup size of coffee. Exemplarily, the target cup size may be a large cup, a medium cup, or a small cup, or may be the number of milliliters input by the user.

[0344] The step P212 and the aforementioned step P112 may refer to the same step. That is, a single beverage preparation only needs to determine a target cup size of the beverage.

[0345] Step P213, determine the target concentration of the beverage.

[0346] For example, the target concentration of the beverage is set or input by the user. The target concentration can be light, moderate, strong, etc.

[0347] The step P213 and the aforementioned step P113 may refer to the same step. That is, a single beverage preparation only needs to determine the target concentration of the beverage once.

[0348] The step P211, the step P212 and the step P213 may be executed simultaneously.

[0349] Step P214, determining the temperature of the brewing liquid supplied to the brewing chamber 12.

[0350] For example, the temperature of the brewing liquid is detected by a temperature sensor provided at the liquid supply source.

[0351] Step P22, determining the grinding time of the beverage particles.

[0352] For example, step P22 may be provided after step P212 and step P213. For example, the grinding time of the beverage particles may be determined according to the target cup volume of the beverage and the target concentration of the beverage.

[0353] The step P22 and the aforementioned step P12 may refer to the same step. That is, the preparation of a single beverage only requires determining the grinding time of the beverage particles once.

[0354] In one embodiment, the beverage preparation method provided in the present application, in particular the step of calculating the pump liquid parameters of the water pump 11 based on the target production parameters and the brewing liquid temperature to obtain the second pump liquid parameter, may include: calculating the grinding time of the beverage particles based on the target concentration and the target cup volume to obtain the grinding time of the beverage particles.

[0355] Step P23, determining the thickness of the beverage powder cake.

[0356] For example, step P23 may be arranged after step P22; for example, the thickness of the beverage powder cake may be determined according to the grinding time of the beverage particles. For example, step P23 may be arranged after step P211; for example, the thickness may be determined according to the grinding degree of the beverage particles.

[0357] In one embodiment, the beverage preparation method provided in the present application, in particular the step of calculating the pump liquid parameters of the water pump 11 based on the target production parameters and the brewing liquid temperature to obtain the second pump liquid parameter, may include: calculating the thickness of the beverage powder cake based on the grinding time and the grinding degree to obtain the thickness of the beverage powder cake.

[0358] Step P24, determining the second pumping parameters.

[0359] For example, step P24 can be arranged after step P23; for example, the second pumping parameter can be determined according to the thickness. For example, step P24 can be arranged after step P214; for example, the second pumping parameter can be determined according to the brewing liquid temperature.

[0360] In one embodiment, the beverage preparation method provided in the present application, in particular, the step of calculating the pump liquid parameter of the water pump 11 based on the target production parameter and the brewing liquid temperature to obtain the second pump liquid parameter, may include: determining the second pump liquid parameter based on the thickness of the beverage powder cake and the brewing liquid temperature.

[0361] In one embodiment, the second pumping parameter can also be determined based on a preset first parameter threshold. Specifically, when the second pumping parameter is greater than the first parameter threshold, the water pump 11 is controlled based on the first parameter threshold. The first parameter threshold is used to characterize that the water pump 11 pumps at its maximum supported operating frequency; or, the first parameter threshold is used to characterize that the water pump 11 pumps at its maximum supported operating power.

[0362] In one embodiment, the second pump fluid parameter can also be determined according to a preset second parameter threshold. Specifically, when the second pump fluid parameter is less than the second parameter threshold, the second pump fluid parameter is updated to the second parameter threshold, and the water pump 11 is controlled based on the second parameter threshold. The second parameter threshold is set as follows: when the water pump 11 pumps fluid at the second parameter threshold, the valve body 14 is in the first state.

[0363] In this embodiment, the valve body 14 is in the first state, which may mean that the valve body 14 switches from other states to the first state, or may mean that the valve body 14 is intermittently or continuously in the first state.

[0364] When the valve body 14 includes the valve ball 141, when the water pump 11 pumps liquid at the second parameter threshold, the valve ball 141 at least does not close the liquid outlet 131. When the valve body 14 includes the elastic member 142, when the water pump 11 pumps liquid at the second parameter threshold, the elastic member 142 at least does not deform to a length that closes the liquid outlet 131.

[0365] In one embodiment, the beverage preparation device further includes a first beverage outlet and a second beverage outlet, and the downstream of the liquid outlet pipe 13 is connected to the first beverage outlet and the second beverage outlet. In this way, based on the first pumping liquid parameter, the pumping liquid can put the valve body 14 in the first state, and the dual beverage outlets can produce uniform, stable and continuous beverages. Even if the subsequent pumping liquid parameters change, based on the liquid tension, the dual beverage outlets (the first beverage outlet and the second beverage outlet) can both flow out beverages uniformly and stably, and the beverage flow rates flowing out of the two beverage outlets are highly consistent, effectively avoiding volumetric liquid discharge, that is, effectively avoiding liquid discharge from a single outlet.

[0366] In one embodiment, the second pumping parameter is used to characterize that the water pump 11 pumps liquid at a second operating frequency. In a specific embodiment, the first parameter threshold corresponds to a first frequency threshold of the water pump 11, and the second parameter threshold corresponds to a second frequency threshold of the water pump 11.

[0367] In one embodiment, the second pumping parameter is used to characterize that the water pump 11 pumps liquid at a second power. In a specific embodiment, the first parameter threshold corresponds to a first power threshold of the water pump 11, and the second parameter threshold corresponds to a second power threshold of the water pump 11.

[0368] In one embodiment, the beverage preparation method provided in the present application may include the steps of:

[0369] Step S023, determining whether the second pump fluid parameter is less than or equal to the first parameter threshold and greater than or equal to the second parameter threshold;

[0370] When the second pump fluid parameter is less than or equal to the first parameter threshold and greater than or equal to the second parameter threshold, jump to step S024A: control the water pump 11 based on the second pump fluid parameter;

[0371] When the second pump fluid parameter is greater than the first parameter threshold, jump to step S024B: update the second pump fluid parameter to the first parameter threshold, and control the water pump 11 based on the first parameter threshold;

[0372] When the second pump fluid parameter is less than the second parameter threshold, jump to step S024C: update the second pump fluid parameter to the second parameter threshold, and control the water pump 11 based on the second parameter threshold.

[0373] In a specific embodiment, steps S024A to S024C may be arranged after the step of obtaining the second pumping liquid parameter.

[0374] In one embodiment, the operating power of the water pump 11 represented by the first parameter threshold is greater than the operating power of the water pump 11 represented by the second parameter threshold.

[0375] In one embodiment, the operating frequency of the water pump 11 represented by the first parameter threshold is greater than the operating frequency of the water pump 11 represented by the second parameter threshold.

[0376] In one embodiment, before controlling the water pump 11 to supply liquid to the brewing chamber 12 for a first target time based on the first pumping liquid parameter, the beverage preparation method further includes:

[0377] Step S10 , based on the first pump liquid parameter, controlling the water pump 11 to supply liquid to the brewing chamber 12 for a second target time period, so that brewing liquid with a third flow rate is supplied to the brewing chamber 12 and maintained in the brewing chamber 12 .

[0378] The brewing chamber 12 contains a beverage powder cake, which is used for brewing a beverage.

[0379] In this way, before implementing the brewing and extraction of step S1 (corresponding to the first stage of beverage brewing) and step S2 (corresponding to the second stage of beverage brewing), the beverage powder cake can be fully soaked in the brewing liquid to achieve soaking and pre-cooking, which corresponds to the aforementioned pre-soaking stage.

[0380] Step S10 may specifically occur in the second stage of the workflow of the beverage preparation device. Figure 5 As shown, the upper piston 101 approaches the brewing cylinder 120 and presses the ground beverage powder to form a beverage powder cake, then step S10 is implemented, and after the second target time, step S1 and step S2 are continued to be implemented, and the water pump 11 is controlled to pump liquid according to the first pump liquid parameter and the second pump liquid parameter in sequence for brewing, extraction and brewing. It can be understood that the preparation of the beverage can be divided into a pre-soaking stage, a first stage of beverage brewing and a second stage of beverage brewing, wherein the pre-soaking stage corresponds to step S10, the first stage of beverage brewing corresponds to step S1, and the second stage of beverage brewing corresponds to step S2.

[0381] In one embodiment, the first pumping parameter is used to characterize that the water pump 11 pumps fluid at full operating frequency, full power or rated power.

[0382] The third flow rate brewing liquid is only used to distinguish it from the first flow rate liquid and the second flow rate liquid, which belong to three stages of liquid. It does not mean that the third flow rate brewing liquid must have a different flow rate from the first flow rate liquid and the second flow rate liquid.

[0383] In one embodiment, the third flow rate of brewing liquid can be 10 ml.

[0384] In one embodiment, the third flow rate brewing liquid is maintained in the brewing chamber 12. The third flow rate brewing liquid can be completely maintained in the brewing chamber 12, or most of the third flow rate brewing liquid can be maintained in the brewing chamber 12, and a small amount of it enters the liquid outlet pipe 13 through the valve body 14.

[0385] In order to ensure that the entire beverage powder cake is fully pre-soaked, a third flow brewing liquid with a certain amount of surplus can be provided, most of which is used to pre-soak the beverage powder cake, and the surplus provided to ensure sufficient soaking can enter the liquid outlet pipe 13 through the valve body 14. It can be understood that the substances entering the liquid outlet pipe 13 from the valve body 14 during the pre-soaking stage include not only the surplus brewing liquid, but also part of the gas in the brewing chamber 12.

[0386] In one embodiment, the beverage preparation method further comprises:

[0387] Step S100 , while controlling the water pump 11 to supply liquid to the brewing chamber 12 for a second target time period based on the first pumping liquid parameter, controlling the drain mechanism downstream of the brewing chamber 12 to open to empty the liquid outlet pipe 13 .

[0388] Thus, during the pre-soaking phase, the drain mechanism is opened for a certain period of time to discharge part of the gas in the brewing chamber 12 and a small amount of excess brewing liquid discharged into the liquid outlet pipe 13 to the outside (e.g., the water storage tray), thereby preventing the beverage from entering the beverage outlet and causing splashing or affecting the cup volume. The drain mechanism can also discharge the beverage remaining in the liquid outlet pipe 13 from the preparation of the previous cup of beverage, thereby preventing the residue of the previous cup of beverage from affecting the quality and cup volume of the current cup of beverage.

[0389] Step S100 may specifically occur in the second stage of the workflow of the beverage preparation device. Figure 5 As shown, the upper piston 101 approaches the brewing cylinder 120 and presses the ground beverage powder to form a beverage powder cake, and then steps S100 and S10 are implemented. After the second target time, steps S1 and S2 are continued to be implemented, and the water pump 11 is controlled to pump liquid according to the first pump liquid parameter and the second pump liquid parameter in sequence to perform two-stage brewing and extraction brewing.

[0390] In some embodiments, the preparation of the beverage also includes a waiting stage. Specifically, the waiting stage is arranged between the pre-soaking stage and the first stage of beverage brewing, that is, the preparation of the beverage can be divided into a pre-soaking stage, a waiting stage, a first stage of beverage brewing and a second stage of beverage brewing.

[0391] The waiting stage may last for 3-5 seconds to ensure the pre-soaking effect and thus the extraction rate of the beverage.

[0392] In one embodiment, step S100 and step S10 may specifically be: based on the first pump liquid parameter, controlling the water pump 11 to supply liquid to the brewing chamber 12 for a second target time period, during which the drain mechanism is controlled to open and empty the liquid outlet pipe 13, and after a third target time period (for example, 3 seconds) after the drain mechanism is opened, controlling the drain mechanism to stop draining; after a waiting period lasting 3-5 seconds, continuing to execute step S1 and step S2.

[0393] In one embodiment, the liquid draining mechanism is used to drain the liquid into the water storage tray.

[0394] The third flow rate may also have a smaller value, and the force exerted by the third flow rate brewing liquid on the valve body 14 is smaller, so that it is insufficient to switch the valve body 14 to the first state; the valve body 14 and the surrounding structure may also be designed so that when step S10 is implemented, the structure included in the valve body 14 is limited, pressed, or hooked, thereby causing the valve body 14 to be in the second state. In one embodiment, the beverage preparation method further includes:

[0395] Step S01, before controlling the water pump 11 to supply liquid to the brewing chamber 12 for a second target time based on the first pump liquid parameter, controlling the water pump 11 to supply a fourth flow rate brewing liquid to the brewing chamber 12 based on the third pump liquid parameter, wherein the temperature of the fourth flow rate brewing liquid is lower than the temperature of the brewing chamber 12.

[0396] In this way, the water system of the beverage preparation device can be cooled before normal temperature water brewing (normal temperature water extraction) or cold water brewing (cold brewing), and in particular, the brewing device 100 can be cooled before normal temperature water extraction or cold brewing to ensure that the normal temperature water extracted beverage or the cold brewed beverage has a lower cup temperature. When the previous cup is a hot drink, step S01 is particularly important for ensuring that the normal temperature water extracted beverage or the cold brewed beverage has a lower temperature.

[0397] Step S01 may specifically occur before the first stage in the workflow of the beverage preparation device. Figure 5 As shown, the water pump 11 first outputs the fourth flow rate brewing liquid cooling water system, and then implements the first stage of operation, controls the grinding device 21 to work and places the ground beverage powder in the cooled brewing chamber 12. The upper piston 101 approaches the brewing cylinder 120 and presses the ground beverage powder to form a beverage powder cake, and then implements steps S100 and S10, and then performs a waiting stage lasting 3-5 seconds, and then continues to implement steps S1 and S2, and controls the water pump 11 to pump liquid according to the first pumping liquid parameter and the second pumping liquid parameter in turn to perform two-stage brewing extraction brewing.

[0398] In one embodiment, the third pumping parameter may be the same as the first pumping parameter or the second pumping parameter. The third pumping parameter is used to characterize that the water pump 11 pumps at full operating frequency, full power or rated power, or is used to characterize that the water pump 11 pumps at a cut-off frequency or at a power lower than the rated power or full power.

[0399] The fourth flow rate brewing liquid is only used to distinguish it from the first flow rate liquid, the second flow rate liquid, and the third flow rate brewing liquid, which belong to four stages of liquid. It does not mean that the fourth flow rate brewing liquid must have a different flow rate from the first flow rate liquid, the second flow rate liquid, and the third flow rate brewing liquid.

[0400] In one embodiment, the fourth flow rate of brewing liquid is 50 ml.

[0401] In one embodiment, whether to execute step S01 can be determined according to the set temperature of the beverage. The set temperature of the beverage can be set or input by the user. For example, when the user inputs the set temperature of the beverage to indicate that he / she wishes to prepare a low-temperature beverage such as a room temperature beverage or a cold beverage, the beverage preparation device executes step S01 to cool; when the user inputs the set temperature of the beverage to indicate that he / she wishes to prepare a hot beverage, the beverage preparation device skips step S01 and executes other steps.

[0402] In some embodiments, step S01 may also be used to clean the brewing device 100 .

[0403] In one embodiment, the beverage preparation method further comprises:

[0404] Step S02 , before controlling the water pump 11 to supply liquid to the brewing chamber 12 for a second target time based on the first pump liquid parameter, controlling the grinding device to grind the beverage particles into beverage powder, and placing the processed beverage powder in the brewing chamber 12 .

[0405] This step corresponds to the first stage in the workflow of the aforementioned beverage preparation device, and will not be described in detail here. Step S02 is specifically performed after the water pump 11 stops pumping liquid in step S01.

[0406] In a preferred embodiment, the step S01, step S02, and step S10 are performed sequentially, and step S100 is performed during the execution of step S10; and then the step S1 and step S2 are performed sequentially.

[0407] In some embodiments, the beverage preparation method also includes: in response to receiving a low-temperature beverage preparation instruction, based on a first pump liquid parameter, controlling the water pump 11 to supply liquid to the brewing chamber 12 for a first target time; after the first target time, based on a second pump liquid parameter, controlling the water pump 11 to supply liquid to the brewing chamber 12 until the beverage preparation is completed, that is, when preparing the low-temperature beverage, calling step S1 and step S2 to perform two-stage brewing, extraction and brewing. Specifically, the first pump liquid parameter in step S1, the first target time, and the second pump liquid parameter in step S2 are determined as described above.

[0408] In response to receiving a hot drink preparation instruction, the water pump 11 is controlled to supply liquid to the brewing chamber 12 at full power or full operating frequency until the drink preparation is completed. That is, when preparing hot drinks, a one-step brewing extraction is performed, which can ensure both the extraction rate and the extraction efficiency.

[0409] The temperature of the brewing liquid for preparing hot drinks is different from that of the brewing liquid for preparing low-temperature drinks. The present application sets different water pump control methods for hot drink preparation and low-temperature drink preparation, so that the same beverage preparation device can realize the dual functions of hot drink preparation and low-temperature drink preparation, and ensure that both hot drink preparation and low-temperature drink preparation can obtain sufficient extraction rate and high efficiency.

[0410] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0411] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present application should be included in the scope of protection of the present application.

Claims

1. A beverage preparation method, applied to a beverage preparation device (10), characterized in that: The beverage preparation device (10) comprises: a water pump (11), a brewing chamber (12) arranged downstream of the water pump (11), a liquid outlet pipe (13) arranged downstream of the brewing chamber (12), and a valve body (14) arranged between the brewing chamber (12) and the liquid outlet pipe (13); the beverage preparation method comprises: Based on the first pump liquid parameter, controlling the water pump (11) to supply liquid to the brewing chamber (12) for a first target time length, so that the valve body (14) switches to a first state, thereby allowing a first flow rate of liquid to enter the liquid outlet pipe (13); After the first target time, based on a second pumping liquid parameter, the water pump (11) is controlled to supply liquid to the brewing chamber (12), so that a second flow rate of liquid enters the liquid outlet pipe (13), during which the valve body (14) is intermittently or continuously in the first state; The pumping speed of the water pump (11) corresponding to the second pumping parameter is smaller than the pumping speed of the water pump (11) corresponding to the first pumping parameter.

2. The beverage preparation method according to claim 1, characterized in that: The first pumping parameter is used to characterize that the water pump (11) pumps liquid at a first operating frequency, and the second pumping parameter is used to characterize that the water pump (11) pumps liquid at a second operating frequency, and the first operating frequency is greater than the second operating frequency; or The first pumping parameter is used to characterize that the water pump (11) pumps liquid at a first power, and the second pumping parameter is used to characterize that the water pump (11) pumps liquid at a second power, wherein the first power is greater than the second power.

3. The beverage preparation method according to claim 1, characterized in that: The second pump fluid parameter satisfies at least one of the following characteristics: The second pump liquid parameter is positively correlated with the temperature of the brewing liquid supplied to the brewing chamber (12); The second pumping liquid parameter is positively correlated with the thickness of the beverage powder cake supplied to the brewing chamber (12), wherein the beverage powder cake is used to brew a beverage; The second pump liquid parameter is positively correlated with the grinding time of the beverage particles; The second pump liquid parameter is positively correlated with the target concentration of the beverage; The second pump liquid parameter is positively correlated with the target cup volume of the beverage; The second pumping parameter is positively correlated with the grinding degree of the beverage particles.

4. The beverage preparation method according to claim 1, characterized in that: Before controlling the water pump (11) to supply liquid to the brewing chamber (12) for a first target time period based on the first pumping liquid parameter, the beverage preparation method further comprises: Obtaining target production parameters of the beverage and the temperature of the brewing liquid supplied to the brewing chamber (12); The pump liquid parameter of the water pump (11) is calculated based on the target production parameter and the brewing liquid temperature to obtain the second pump liquid parameter.

5. The beverage preparation method according to claim 4, characterized in that: The target production parameters include the target concentration of the beverage, the target cup volume of the beverage and the grinding degree of the beverage particles. The pump liquid parameter of the water pump (11) is calculated based on the target production parameters and the brewing liquid temperature to obtain the second pump liquid parameter, including: Calculating the grinding time of the beverage particles based on the target concentration and the target cup volume to obtain the grinding time of the beverage particles; Calculating the thickness of the beverage powder cake based on the grinding time and the grinding degree to obtain the thickness of the beverage powder cake; The second pumping parameter is determined based on the thickness of the beverage powder cake and the temperature of the brewing liquid.

6. The beverage preparation method according to claim 4, characterized in that: After obtaining the second pumping liquid parameter, the beverage preparation method further includes: Determining whether the second pump fluid parameter is less than or equal to a first parameter threshold and greater than or equal to a second parameter threshold; When the second pump fluid parameter is less than or equal to the first parameter threshold and greater than or equal to the second parameter threshold, controlling the water pump (11) based on the second pump fluid parameter; When the second pump fluid parameter is greater than the first parameter threshold, updating the second pump fluid parameter to the first parameter threshold, and controlling the water pump (11) based on the first parameter threshold; When the second pump fluid parameter is less than the second parameter threshold, updating the second pump fluid parameter to the second parameter threshold, and controlling the water pump (11) based on the second parameter threshold; The operating power of the water pump (11) represented by the first parameter threshold is greater than the operating power of the water pump (11) represented by the second parameter threshold; or the operating frequency of the water pump (11) represented by the first parameter threshold is greater than the operating frequency of the water pump (11) represented by the second parameter threshold; The second parameter threshold is set such that when the water pump (11) pumps liquid at the second parameter threshold, the valve body (14) is in the first state.

7. The beverage preparation method according to claim 1, characterized in that: The first target duration satisfies at least one of the following characteristics: The first target duration is negatively correlated with a first extraction flow rate corresponding to the first pump liquid parameter; The first target duration is positively correlated with the grinding degree of the beverage particles; The first target duration is positively correlated with the grinding duration of the beverage particles; The first target duration is positively correlated with the target concentration of the beverage; The first target duration is positively correlated with the target cup size of the beverage; The first target duration is positively correlated with the volume of the liquid outlet pipe (13); The first target duration is positively correlated with a force parameter for switching the valve body (14) to the first state.

8. The beverage preparation method according to claim 1, characterized in that: Before controlling the water pump (11) to supply liquid to the brewing chamber (12) for a first target time period based on the first pumping liquid parameter, the beverage preparation method further comprises: Acquiring target production parameters of the beverage and a force parameter for switching the valve body (14) to a first state; The pumping time of the water pump (11) is calculated based on the target manufacturing parameters and the force parameter to obtain the first target time.

9. The beverage preparation method according to claim 8, characterized in that: The target production parameters include the target concentration of the beverage, the target cup volume of the beverage, and the grinding degree of the beverage particles. The pumping time of the water pump (11) is calculated based on the target production parameters and the force parameter to obtain the first target time, including: Calculating the grinding time of the beverage particles based on the target concentration and the target cup volume to obtain the grinding time of the beverage particles; Calculating the extraction flow rate of the water pump (11) under the first pump liquid parameter based on the grinding time and the grinding degree to obtain a first extraction flow rate corresponding to the first pump liquid parameter; The first target duration is determined based on a first extraction flow rate corresponding to the first pumping parameter and the force parameter.

10. The beverage preparation method according to claim 1, characterized in that: The method satisfies at least one of the following characteristics: The first target duration is 2-4 seconds; The first pump fluid parameter corresponds to the full operating frequency of the water pump (11); The second pump fluid parameter corresponds to a cut-off frequency of the water pump (11), and the range of the cut-off frequency is 1 / 8-3 / 8 of the full operating frequency.

11. The beverage preparation method according to claim 1, characterized in that: Before controlling the water pump (11) to supply liquid to the brewing chamber (12) for a first target time period based on the first pumping liquid parameter, the beverage preparation method further comprises: Based on the first pump liquid parameter, the water pump (11) is controlled to supply liquid to the brewing chamber (12) for a second target time period, so that a third flow rate of brewing liquid is supplied to the brewing chamber (12) and is maintained in the brewing chamber (12); the brewing chamber (12) contains a beverage powder cake.

12. The beverage preparation method according to claim 11, characterized in that: The beverage preparation method further comprises at least one of the following: Before controlling the water pump (11) to supply liquid to the brewing chamber (12) for a second target time period based on the first pump liquid parameter, controlling the water pump (11) to supply brewing liquid at a fourth flow rate to the brewing chamber (12) based on the third pump liquid parameter, the temperature of the brewing liquid at the fourth flow rate being lower than the temperature of the brewing chamber (12); While controlling the water pump (11) to supply liquid to the brewing chamber (12) for a second target time period based on the first pumping liquid parameter, the liquid discharge mechanism downstream of the brewing chamber (12) is controlled to open so as to empty the liquid outlet pipe (13).

13. The beverage preparation method according to any one of claims 1 to 12, characterized in that: The beverage preparation device has a hot beverage preparation mode for preparing high-temperature beverages, and a low-temperature beverage preparation mode for preparing normal-temperature beverages or cold beverages. The method further includes: In response to receiving a low-temperature beverage preparation instruction, based on the first pumping liquid parameter, controlling the water pump (11) to supply liquid to the brewing chamber (12) for a first target time period, and after the first target time period, based on the second pumping liquid parameter, controlling the water pump (11) to supply liquid to the brewing chamber (12) until the beverage preparation is completed; In response to receiving a hot drink preparation instruction, the water pump (11) is controlled to supply liquid to the brewing chamber (12) at full power or full operating frequency until the drink preparation is completed.

14. A beverage preparation device (10), characterized in that: include: Water pump (11); A brewing chamber (12), arranged downstream of the water pump (11); A liquid outlet pipe (13) arranged downstream of the brewing chamber (12); A valve body (14) is arranged between the brewing chamber (12) and the liquid outlet pipe (13); A controller is communicatively connected to the water pump (11), and the controller is configured to execute the beverage preparation method according to any one of claims 1 to 13.

15. The beverage preparation device (10) according to claim 14, characterized in that The beverage preparation device has a hot beverage preparation mode for preparing high-temperature beverages, and a low-temperature beverage preparation mode for preparing room-temperature beverages or cold beverages. The beverage preparation device (10) further comprises: A heating module (40) is arranged between the water pump (11) and the brewing chamber (12); A bypass pipeline (60) is arranged between the water pump (11) and the brewing chamber (12); A control valve (30) is respectively connected to the water pump (11), the heating module (40) and the bypass pipeline (60); the control valve (30) is in communication connection with the controller; the control valve (30) is used to control the connection from the water pump (11) to the heating module (40) when the controller receives a hot drink preparation instruction; the control valve (30) is also used to control the connection from the water pump (11) to the bypass pipeline (60) when the controller receives a low-temperature drink preparation instruction.

16. The beverage preparation device (10) according to claim 14, characterized in that The beverage preparation device (10) further comprises at least one of the following features: The beverage preparation device (10) further comprises a first beverage outlet (221) and a second beverage outlet (222), wherein the downstream of the liquid outlet pipe (13) is respectively connected to the first beverage outlet (221) and the second beverage outlet (222); The valve body (14) comprises a valve ball (141) and an elastic member (142) drivingly connected to the valve ball (141); the liquid outlet pipe (13) has a liquid outlet (131) communicating with the brewing chamber (12); the valve ball (141) is used to open or close the liquid outlet (131); the elastic member (142) is used to hold the valve ball (141) at the liquid outlet (131) to close the liquid outlet (131), and to provide a restoring force to restore the valve ball (141) to the liquid outlet (131); when the valve body (14) is in the first state, the liquid outlet (131) is open; The beverage preparation device (10) further comprises a liquid discharge mechanism disposed downstream of the brewing chamber (12), wherein the liquid discharge mechanism is in communication with the liquid outlet pipe (13).

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