Coffee machine, control method, control device and storage medium

Abstract

The embodiment of the invention discloses a coffee machine, a control method, a control device and a storage medium, and the control method comprises the steps that it is detected that the coffee machine executes a first function, and the first function needs to start at least one of a second pipeline and a third pipeline; and the opening and closing states of the valves are sequentially controlled, so that residues are prevented from being generated or accumulated on the second pipeline and / or the third pipeline. The technical scheme provided by the embodiment of the invention aims to solve the technical problem that residues exist in a coffee machine pipeline.

Description

Technical Field

[0001] The present disclosure relates to the field of electrical equipment, and in particular to a coffee machine, a control method, a control device and a storage medium. Background Art

[0002] At present, a fully automatic coffee machine (such as Figure 1 The coffee brewing system 100 (shown) includes a water system 100, a milk frothing system 200, a coffee brewing system 300, an outlet module 400, a waste liquid recovery system 500 and an MCU controller (not shown).

[0003] The applicant of the present disclosure has found that directly shutting down all loads after the milk frothing function ends will cause two problems: first, a lot of milk will remain in the milk pipeline; second, a small amount of milk will enter the air pipeline.

[0004] The applicant also found that after the cleaning function is completed, the water pump stops working and a large amount of water remains in the pipeline. If it is not cleaned, a lot of water will be discharged before the next milk frothing, affecting the milk foam effect. Summary of the invention

[0005] The main purpose of the present disclosure is to provide a control method for a coffee machine, aiming to solve the technical problem of residues in the pipeline of the coffee machine.

[0006] The coffee machine proposed in the present disclosure includes a fluid heating device, a milk frother, a first pipeline whose inlet is connected to the outlet of the fluid heating device, a second pipeline and a third pipeline connected in parallel between the outlet of the first pipeline and the inlet of the milk frother, and a plurality of valves for controlling the opening and closing of the first pipeline, the second pipeline and the third pipeline, wherein the third pipeline has an air input port.

[0007] In an exemplary embodiment, the coffee machine also includes a coffee brewing chamber, a liquid outlet, a fourth pipeline whose inlet is connected to the outlet of the fluid heating device, a fifth pipeline and a sixth pipeline connected in parallel between the fourth pipeline outlet and the liquid outlet inlet, and a valve for controlling the on-off of the fourth pipeline, the fifth pipeline and the sixth pipeline; the coffee brewing chamber is located in the fifth pipeline or the sixth pipeline.

[0008] The present disclosure provides a control method for a coffee machine, the control method comprising:

[0009] detecting that the coffee machine has completed a first function, wherein the first function requires activation of at least one of the second pipeline and the third pipeline;

[0010] Controlling the opening and closing states of the plurality of valves in sequence to prevent the second pipeline from accumulating residues or the third pipeline from generating or accumulating residues;

[0011] Wherein, the coffee machine is the coffee machine mentioned above.

[0012] In an exemplary embodiment, the first function is a milk frothing function; and sequentially controlling the opening and closing states of the plurality of valves to prevent residue from being generated in the third pipeline includes:

[0013] Controlling the opening and closing states of the plurality of valves to disconnect the first pipeline;

[0014] The opening and closing states of the plurality of valves are controlled to disconnect the second pipeline and connect the third pipeline, so that the steam in the first pipeline is discharged to the milk frother through the third pipeline.

[0015] In an exemplary embodiment, the first function is a cleaning function; and sequentially controlling the opening and closing states of the plurality of valves to avoid accumulation of residues in the second pipeline or to avoid accumulation of residues in the third pipeline includes:

[0016] Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive;

[0017] Controlling the opening and closing states of the plurality of valves to connect the second pipeline and disconnect the third pipeline, so that the steam generated by the fluid heating device at this moment lasts for a first preset time to clear the residual water in the first pipeline and the second pipeline;

[0018] Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the steam generated by the fluid heating device at this moment lasts for a second preset time to clear the residual water in the first pipeline and the third pipeline;

[0019] or

[0020] Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive;

[0021] Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the steam generated by the fluid heating device at this moment lasts for a second preset time to clear the residual water in the first pipeline and the third pipeline;

[0022] The opening and closing states of the plurality of valves are controlled to connect the second pipeline and disconnect the third pipeline, so that the residual water in the first pipeline and the second pipeline can be cleared by the steam generated by the fluid heating device for a first preset time.

[0023] In an exemplary embodiment, the cleaning function includes:

[0024] Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive;

[0025] Controlling the opening and closing states of the plurality of valves to connect the second pipeline and disconnect the third pipeline, so that the first pipeline and the second pipeline are cleaned by the water flowing through the fluid heating device at this moment;

[0026] Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the first pipeline and the third pipeline are cleaned by the water flowing through the fluid heating device at this moment;

[0027] or

[0028] Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive;

[0029] Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the first pipeline and the third pipeline are cleaned by the water flowing through the fluid heating device at this moment;

[0030] The opening and closing states of the plurality of valves are controlled to connect the second pipeline and disconnect the third pipeline, so that the first pipeline and the second pipeline are cleaned by the water flowing through the fluid heating device at this moment.

[0031] In an exemplary embodiment, the plurality of valves are all solenoid valves.

[0032] In an exemplary embodiment, the multiple valves include a first valve, a second valve and a third valve; the first valve is arranged on a first pipeline; the inlet of the second valve is connected to the outlet of the first pipeline, the two outlets of the second valve are respectively connected to the inlet of the second pipeline and the inlet of the third pipeline, and the third valve is arranged on the third pipeline.

[0033] In an exemplary embodiment, controlling the opening and closing states of the plurality of valves to disconnect the first pipeline includes: controlling the first valve to close to disconnect the first pipeline.

[0034] In an exemplary embodiment, controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline includes:

[0035] The second valve is controlled to open, and the third valve is controlled to open, so that the second pipeline is disconnected and the third pipeline is connected.

[0036] In an exemplary embodiment, controlling the opening and closing states of the plurality of valves to connect the first pipeline includes: controlling the first valve to open to connect the first pipeline.

[0037] In an exemplary embodiment, controlling the opening and closing states of the plurality of valves to connect the second pipeline and disconnect the third pipeline includes:

[0038] The second valve is controlled to be closed and the third valve is controlled to be closed, so that the second pipeline is disconnected and the third pipeline is connected.

[0039] In an exemplary embodiment, the temperature of the steam is greater than 100 degrees and less than or equal to 110 degrees;

[0040] The first preset time and the second preset time are both no more than 5 seconds.

[0041] In an exemplary embodiment, the method further includes: detecting that the coffee machine has completed the first function, controlling the opening and closing states of valves for controlling the opening and closing of the fourth pipeline, the fifth pipeline and the sixth pipeline, so that the pipeline where the coffee brewing chamber is located is disconnected.

[0042] The present disclosure provides a control device for a coffee machine, comprising a memory and a processor.

[0043] The memory is used to store a program for a control method of the coffee machine;

[0044] The processor is used to read and execute the program for the control method of the coffee machine, and execute the control method of the coffee machine as described above.

[0045] The present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to enable the computer to execute the control method of the coffee machine as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0047] Figure 1 is a schematic structural diagram of a fully automatic coffee machine in at least one embodiment of the present disclosure;

[0048] Figure 2 is a schematic structural diagram of a coffee machine in at least one embodiment of the present disclosure;

[0049] Figure 3 is a schematic structural diagram of a coffee machine in at least one embodiment of the present disclosure;

[0050] Figure 4is a schematic diagram of a method for controlling a coffee machine in at least one embodiment of the present disclosure;

[0051] Figure 5 is a schematic diagram of a method for controlling a coffee machine in at least one embodiment of the present disclosure;

[0052] Figure 6 It is a schematic diagram of a control method of a coffee machine in at least one embodiment of the present disclosure.

[0053] Description of Figure Numbers:

[0054]

[0055]

[0056] The realization of the objectives, functional features and advantages of the present disclosure will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0058] It should be noted that all directional indications in the embodiments of the present disclosure (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0059] In addition, in the present disclosure, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present disclosure, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0061] In addition, the technical solutions between the various embodiments of the present disclosure may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present disclosure.

[0062] Figure 2 The coffee machine of at least one embodiment of the present disclosure is a schematic diagram of the structure of the coffee machine. The coffee machine includes a water system 100, a milk frothing system 200, a coffee brewing system 300, an outlet module 400, a waste liquid recovery system 500 and an MCU controller (not shown);

[0063] The water system 100 includes a water tank 101, a water pump 102, a heater 103, a three-way valve 104, a flow meter 105, a first one-way valve 106 and a second one-way valve 107 which are connected in sequence; the water system 100 is configured to supply water to the milk frothing system 200, the coffee brewing system 300 and the outlet module 400.

[0064] The coffee brewing system 300 of the coffee machine may include a solenoid valve 301, a brewing chamber 302 and a third one-way valve; the solenoid valve 301 is configured to connect the water system 100 and the outlet module 400 when in a first state; and to connect the water system 100 and the coffee brewing system 300 when in a second state;

[0065] The milk frothing system 200 includes a milk frothing machine 203, a milk tank 204, a first water pipeline (including 205 and 206), a second water pipeline (including 205 and 207), a milk pipeline 208, an air pipeline 209, a solenoid valve 201 and a solenoid valve 202; the milk frothing machine 203 and the milk tank 204 are connected via the milk pipeline 208; the solenoid valve 201 is configured to connect the water system 100 and the milk frothing machine 203 via the first water pipeline (including 205 and 206) and the pipeline 503 when the solenoid valve 201 is in the second state and the solenoid valve 501 is in the first state. 3; when the solenoid valve 501 is in the first state, the water system 100 and the solenoid valve 202 are connected through the second water pipeline (including 205, 207) and the pipeline 503; the solenoid valve 202 is configured to connect the water system 100 and the milk frother 203 through the pipeline 503, the second water pipeline (including 205, 207) and the air pipeline 209 when the solenoid valve 201 and the solenoid valve 501 are in the first state; when the solenoid valve 202 is in the second state, the air and the milk frother 203 are connected through the air pipeline 209;

[0066] The milk frothing system 200 is configured to generate milk froth and output it to the outlet module 400;

[0067] A coffee brewing system 300, configured to brew coffee and output the coffee to the outlet module 400;

[0068] The waste liquid recovery system 500 includes a solenoid valve 501, a condensation box 502, a pipeline 503 and a pipeline 504; the waste liquid recovery system 500 is configured to connect the water system 100 and the milk system 200 when the fourth solenoid valve is in a first state; when the fourth solenoid valve is in a second state, the water system 100 and the condensation box 502 are connected to discharge the waste liquid into the condensation box 502.

[0069] Wherein, the first state is an open state (such as Figure 2 The second state is a closed state (such as Figure 2 In some other schematic diagrams, the first state is a closed state, and the second state is an open state.

[0070] When the coffee machine performs the milk frothing function, the solenoid valve 301 and the solenoid valve 202 are closed, the solenoid valve 201 is opened, the water pump pumps water to the heater, and the heater heats to generate high-speed steam. The high-speed steam reaches the milk frother through the first water pipe (including pipe 205 and pipe 206). The milk frother forms a negative pressure due to the high-speed steam, sucking the milk into the milk frother, and a small amount of air is mixed in through the solenoid valve 202 and the air pipe 208. The three are mixed in the milk frother 203 to form milk foam and flow into the coffee cup. The applicant found that if all loads are turned off directly after the milk frothing function ends, two problems will occur: first, a lot of milk will remain in the milk pipe 209; second, a small amount of milk will enter the air pipe 208.

[0071] For example Figure 2 The coffee machine shown needs to clean the milk frother and air line after the milk frothing function is completed. The process is as follows:

[0072] 1) The electromagnetic valve 301, the electromagnetic valve 201 and the electromagnetic valve 202 are closed. When the water pump pumps water, the water flows along the first water pipe to clean the milk frother.

[0073] 2) When the milk frothing function is completed, a small amount of milk may enter the air pipe 208 through the milk frother. If it is not cleaned in time, it will cause blockage. Therefore, after step 1) is completed, the solenoid valve 201 and the solenoid valve 202 are opened. When the water pump pumps water, the water flows along the second water pipe to clean the air pipe.

[0074] The applicant found that after cleaning, the water pump stopped working and a large amount of water remained in the pipes 205, 206, 207, and 208. If they were not cleaned, a lot of water would be discharged before the next milk frothing, affecting the milk frothing effect.

[0075] Figure 3 is a schematic diagram of the structure of a coffee machine in at least one embodiment of the present disclosure, such as Figure 3 As shown, the coffee machine includes a fluid heating device (corresponding to Figure 2 Heater 103 in), milk frother (corresponding to Figure 1 203 in the figure), a first pipeline (including 205 and 213) whose inlet is connected to the outlet of the fluid heating device, a second pipeline (including 206) and a third pipeline (including 207 and 208) connected in parallel between the outlet of the first pipeline and the inlet of the milk frother, and a plurality of valves for controlling the on-off of the first pipeline, the second pipeline and the third pipeline, wherein the third pipeline has an air input port.

[0076] The valve may be a solenoid valve, and some of the multiple valves may be located on the first pipeline, some on the second pipeline, and some on the third pipeline. The valve may be located in the middle of the pipeline or at the head of the pipeline. The air inlet may be located at the valve of the third pipeline.

[0077] The fluid heating device can heat the fluid until steam is generated; can only heat the fluid at a heating temperature lower than 100 degrees; or can not heat the fluid but only serve as a part of the fluid flow path.

[0078] The milk frother can be used to mix milk, air and water to produce milk froth.

[0079] In an exemplary embodiment, the coffee machine may further include a coffee brewing chamber (corresponding to Figure 2 The coffee brewing chamber 302 in the coffee brewing chamber, the liquid outlet end (corresponding to Figure 2 The invention relates to an outlet module 400 in the coffee brewing chamber, a fourth pipeline having an inlet connected to the outlet of the fluid heating device, a fifth pipeline and a sixth pipeline connected in parallel between the outlet of the fourth pipeline and the inlet of the liquid outlet, and a valve for controlling the on-off of the fourth pipeline, the fifth pipeline and the sixth pipeline; the coffee brewing chamber can be located in the fifth pipeline or in the sixth pipeline.

[0080] The liquid outlet may be the output end of the entire coffee machine, and may output water, including cold water or warm water; may also output milk foam; and may also output a mixture of coffee, milk foam and water.

[0081] The present invention provides a control method for a coffee machine (such as Figure 4 As shown), the coffee machine is Figure 3 The coffee machine shown in the figure, the control method is as follows steps S21-S22:

[0082] S21, detecting that the coffee machine has completed executing a first function, wherein the first function requires activating at least one of the second pipeline and the third pipeline;

[0083] S22. Controlling the opening and closing states of the plurality of valves in sequence to prevent the generation or accumulation of residues in the second pipeline or the third pipeline.

[0084] The residue may include milk and water. The second line may be Figure 3 The second pipeline shown, the third pipeline can be Figure 3 The third line is shown.

[0085] In an exemplary embodiment, the first function may be a milk frothing function; and sequentially controlling the opening and closing states of the plurality of valves to prevent residue from being generated in the third pipeline may include:

[0086] The opening and closing states of the plurality of valves can be controlled to disconnect the first pipeline;

[0087] The opening and closing states of the plurality of valves may be controlled to disconnect the second pipeline and connect the third pipeline, so that the steam in the first pipeline is discharged to the milk frother through the third pipeline.

[0088] The milk frothing function may be that the fluid heating device generates high-speed steam, and the high-speed steam reaches the milk frother through the first pipeline and the second pipeline. The high-speed steam forms a negative pressure in the milk frother, so that the milk in the milk tank is sucked into the milk frother, and the air input from the air input port enters the milk frother, so that the high-speed steam, milk and air are mixed in the milk frother to form milk foam.

[0089] After the milk frothing function is completed, directly shutting down all loads will result in a lot of milk remaining in the pipeline between the milk tank and the milk frother, and a small amount of milk will enter the third pipeline. Therefore, after the milk frothing function is completed, turn off the fluid heating device, the water pump, and disconnect the first pipeline. The purpose of disconnecting the first pipeline is to discharge most of the remaining steam to the condensation box.

[0090] In an exemplary embodiment, the first function may be a cleaning function; and sequentially controlling the opening and closing states of the plurality of valves to avoid accumulation of residues in the second pipeline or to avoid accumulation of residues in the third pipeline may include:

[0091] The opening and closing states of the plurality of valves can be controlled to make the first pipeline conductive;

[0092] The opening and closing states of the plurality of valves can be controlled to connect the second pipeline and disconnect the third pipeline, so that the residual water in the first pipeline and the second pipeline is cleared by the steam generated by the fluid heating device for a first preset time;

[0093] The opening and closing states of the plurality of valves can be controlled to disconnect the second pipeline and connect the third pipeline, so that the residual water in the first pipeline and the third pipeline is cleared by the steam generated by the fluid heating device at this moment for a second preset time;

[0094] or:

[0095] The opening and closing states of the plurality of valves can be controlled to make the first pipeline conductive;

[0096] The opening and closing states of the plurality of valves can be controlled to disconnect the second pipeline and connect the third pipeline, so that the residual water in the first pipeline and the third pipeline is cleared by the steam generated by the fluid heating device for a second preset time;

[0097] The opening and closing states of the plurality of valves can be controlled to connect the second pipeline and disconnect the third pipeline, thereby clearing the residual water in the first pipeline and the second pipeline by the steam generated by the fluid heating device for a first preset time.

[0098] That is, when the first pipeline is connected, the second pipeline is connected, and the third pipeline is disconnected, the residual water in the first pipeline and the second pipeline is cleared by the steam generated by the fluid heating device, and the clearing operation lasts for a first preset time. When the first pipeline is connected, the third pipeline is connected, and the second pipeline is disconnected, the residual water in the first pipeline and the third pipeline is cleared by the steam generated by the fluid heating device, and the clearing operation lasts for a second preset time. The order of clearing the residual water in the second pipeline and the order of clearing the residual water in the third pipeline can be reversed.

[0099] The first preset time may be 5 seconds, and the second preset time may be 5 seconds.

[0100] In an exemplary embodiment, the cleaning function includes:

[0101] The opening and closing states of the plurality of valves can be controlled to make the first pipeline conductive;

[0102] The opening and closing states of the plurality of valves can be controlled to connect the second pipeline and disconnect the third pipeline, so that the first pipeline and the second pipeline can be cleaned by the water flowing through the fluid heating device at this moment;

[0103] The opening and closing states of the plurality of valves can also be controlled to disconnect the second pipeline and connect the third pipeline, so that the first pipeline and the third pipeline are cleaned by the water flowing through the fluid heating device at this moment;

[0104] or

[0105] The opening and closing states of the plurality of valves can be controlled to make the first pipeline conductive;

[0106] The opening and closing states of the plurality of valves can be controlled to disconnect the second pipeline and connect the third pipeline, so that the first pipeline and the third pipeline are cleaned by the water flowing through the fluid heating device at this moment;

[0107] The opening and closing states of the plurality of valves may be controlled to connect the second pipeline and disconnect the third pipeline, so that the first pipeline and the second pipeline are cleaned by the water flowing through the fluid heating device at this moment.

[0108] After the milk frothing function is executed, each pipeline needs to be cleaned. When the first pipeline is connected, the second pipeline is connected, and the third pipeline is disconnected, the first pipeline and the second pipeline are cleaned with water flowing through the fluid heating device. When the first pipeline is connected, the second pipeline is disconnected, and the third pipeline is connected, the first pipeline and the third pipeline are cleaned with water flowing through the fluid heating device. The fluid heating device can heat the water flowing through (the water can be heated to warm water) or not.

[0109] In an exemplary embodiment, the plurality of valves may all be solenoid valves. In other exemplary embodiments, the plurality of valves may be valves of other forms.

[0110] In an exemplary embodiment, the multiple valves may include a first valve, a second valve and a third valve; the first valve may be arranged on a first pipeline; the inlet of the second valve may be connected to the outlet of the first pipeline, the two outlets may be connected to the inlet of the second pipeline and the inlet of the third pipeline respectively, and the third valve may be arranged on the third pipeline.

[0111] For example Figure 2 As shown, the first valve may correspond to the solenoid valve 211, the second valve may correspond to the solenoid valve 201, and the third valve may correspond to the solenoid valve 202. The first pipeline may correspond to 205 and 213, the second pipeline may correspond to 206, and the third pipeline may correspond to 207 and 208.

[0112] In an exemplary embodiment, controlling the opening and closing states of the plurality of valves to disconnect the first pipeline may include: controlling the first valve to close the first valve to disconnect the first pipeline.

[0113] In an exemplary embodiment, the opening and closing states of the plurality of valves may be controlled so that the second pipeline is disconnected and the third pipeline is connected, which may include:

[0114] The second valve may be controlled to open, and the third valve may be controlled to open, so that the second pipeline is disconnected and the third pipeline is connected.

[0115] In an exemplary embodiment, controlling the opening and closing states of the plurality of valves to allow the first pipeline to be conductive may include: controlling the first valve to open the first valve to allow the first pipeline to be conductive.

[0116] In an exemplary embodiment, the opening and closing states of the plurality of valves may be controlled to connect the second pipeline and disconnect the third pipeline, which may include:

[0117] The second valve may be controlled to close the second valve, and the third valve may be controlled to close the third valve, so that the second pipeline is disconnected and the third pipeline is connected.

[0118] In an exemplary embodiment, the temperature of the steam may be greater than 100 degrees and less than or equal to 110 degrees.

[0119] In an exemplary embodiment, the first preset time and the second preset time may not exceed 5 seconds. In some other embodiments, the first preset time and the second preset time may be determined based on experience and actual conditions.

[0120] In an exemplary embodiment, the method further includes: when it is detected that the coffee machine has completed the first function, the valves for controlling the opening and closing of the fourth pipeline, the fifth pipeline, and the sixth pipeline may be controlled to disconnect the pipeline where the coffee brewing chamber is located. That is, if the coffee brewing chamber is in the fifth pipeline, the fifth pipeline is disconnected, and if the coffee brewing chamber is in the sixth pipeline, the sixth pipeline is disconnected.

[0121] The purpose of disconnecting the pipeline where the coffee brewing chamber is located can be to prevent coffee from being discharged to the liquid outlet.

[0122] The embodiment of the present application provides a control method for a coffee machine, which controls the opening and closing state of a valve in a pipeline after a milk frothing function or a cleaning function is completed, so that the relevant pipeline is connected or disconnected, thereby solving the technical problems of milk in a milk frother flowing back into an air pipeline and milk residue in a milk pipeline, or clearing residual water in a water pipeline and an air pipeline in a milk system.

[0123] Figure 5 is a schematic diagram of a method for controlling a coffee machine in at least one embodiment of the present disclosure, such as Figure 5 As shown, the method includes the following steps S31-S32:

[0124] S31, when it is detected that the milk frothing function is completed and the heater and the water pump are turned off, each solenoid valve is controlled to be in a first residual clearing state;

[0125] S32, maintaining each solenoid valve in the first residue clearing state for a first preset time.

[0126] Through the above steps, the remaining steam in the second water pipeline is discharged to the milk frother through the air pipeline to prevent the milk in the milk frother from flowing back to the air pipeline and avoiding milk residue in the air pipeline, and the milk in the milk pipeline is flushed back into the milk tank to remove the milk residue in the milk pipeline. The remaining steam is the steam remaining in the second water pipeline during the milk frothing process.

[0127] The first preset time can be set based on experience and is not limited here.

[0128] In an exemplary embodiment, the first residue removal state includes:

[0129] The first solenoid valve is in the second state, and the second solenoid valve and the third solenoid valve are in the first state.

[0130] For example, the first solenoid valve is in a closed state (ie, an off state), and the second solenoid valve and the third solenoid valve are in an open state (ie, a on state).

[0131] For example, Figure 2 Taking the fully automatic coffee machine shown as an example, when the heater and the water pump are turned off, the solenoid valve 211 is controlled to be closed, and the solenoid valves 201 and 202 are opened. In this way, a small amount of high-speed steam in the pipeline 213 can be discharged to the milk frother through the pipeline 207 and the air pipeline 208, so as to prevent the milk in the milk frother 203 from flowing back to the air pipeline 208. At the same time, a small amount of high-speed steam will form a certain pressure after entering the milk frother 203 through the air pipeline 208, so as to flush the milk in the milk pipeline 209 back into the milk tank, so as to prevent the milk from remaining in the pipeline.

[0132] After that, all pipelines no longer have high-speed steam to form pressure or negative pressure. At this time, all solenoid valves are closed, and milk will no longer enter the milk pipeline 209 or the milk frother 203, so naturally no residue will be formed.

[0133] Figure 6 is a schematic diagram of a method for controlling a coffee machine in at least one embodiment of the present disclosure, such as Figure 6 As shown, the method includes the following steps S41-S42:

[0134] S41, when it is detected that the cleaning function is completed and the water pump is turned off, each solenoid valve is controlled to be in the second residual cleaning state and the heater is started;

[0135] S42: When the temperature of the heater reaches the preset temperature range, maintain the temperature for a second preset time.

[0136] According to steps S41-S42, the residual water in the water pipe and the air pipe in the milk system is cleared by the steam generated by the heating heater.

[0137] That is, during the milk frother cleaning phase, when the cleaning function is completed and the water pump is turned off, the residual water in the water pipes and air pipes in the milk system is cleared by the steam generated by the heating heater.

[0138] The preset temperature range may be between 100 degrees and 110 degrees.

[0139] In an exemplary embodiment, the second residue clearing state includes: the first solenoid valve is in a first state, and the second solenoid valve and the third solenoid valve are in a second state.

[0140] For example, the first state is an on state, and the second state is an off state.

[0141] By controlling the first solenoid valve and the second solenoid valve to be in the second state, the heater is heated to a temperature greater than 100 degrees and less than 110 degrees and maintained for a third preset time, so as to remove residual water in the first water pipeline by steam.

[0142] The third preset time may be 5 seconds, or other time set based on experience.

[0143] by Figure 2 Taking the fully automatic coffee machine shown as an example, after the milk frother 203 and the air pipeline 208 are cleaned, the solenoid valve 211 (corresponding to the first solenoid valve) is opened, the solenoid valve 301, the solenoid valve 201 (corresponding to the second solenoid valve) and the solenoid valve 202 (corresponding to the third solenoid valve) are closed, and then the heater 103 is started, and the heating temperature is set to be above 100 degrees, and the maximum temperature does not exceed 110 degrees, which lasts for 5 seconds, so that the residual water in the heater is heated by the heater to generate steam to squeeze out the residual water in the first water pipeline.

[0144] In an exemplary embodiment, the method further includes: when it is detected that a third preset time has arrived, controlling each solenoid valve to be in a third residual clearing state; wherein the third preset time is less than the second preset time.

[0145] In an exemplary embodiment, the third residue clearing state includes: the first solenoid valve, the second solenoid valve, and the third solenoid valve are all in the first state.

[0146] That is, when the third preset time arrives, the first solenoid valve (corresponding to solenoid valve 211), the second solenoid valve (corresponding to 201), and the third solenoid valve (corresponding to 202) are controlled to be in the first state and maintained until the second preset time to remove residual water in the second water pipeline and the air pipeline through steam.

[0147] The second preset time may be 5 seconds, or may be a time set based on experience.

[0148] by Figure 2 Taking the fully automatic coffee machine shown as an example, after the residual water in the first water pipeline is squeezed out, the solenoid valve 301 is closed, and the solenoid valves 211, 201 and 202 are opened (i.e., turned on), and the residual water in the second water pipeline and the air pipeline is squeezed out by steam. This process lasts about 5 seconds.

[0149] In an exemplary embodiment, when the second preset time is reached, all solenoid valves and the heater are closed.

[0150] by Figure 2 Taking the fully automatic coffee machine shown as an example, all solenoid valves and heaters are closed after the process of removing residual water lasts for 10 seconds.

[0151] In the embodiment of the present application, after the milk frothing function is completed and the milk frothing head is cleaned, different water circuits are switched through the solenoid valve, and at the same time, the heater is heated to above 100 degrees, and a small amount of steam is generated to remove the residual water in the water circuit. This method solves the problem of residual water in the pipeline, prevents the residual water from flowing out when making milk froth next time, and improves the user experience and milk froth effect.

[0152] The present disclosure provides a control device for a coffee machine, comprising a memory and a processor.

[0153] The memory is used to store a program for a control method of the coffee machine;

[0154] The processor is used to read and execute the program for the control method of the coffee machine, and execute the control method of the coffee machine as described above.

[0155] The present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to enable the computer to execute the control method of the coffee machine as described above.

[0156] The above description is only a preferred embodiment of the present disclosure, and does not limit the patent scope of the present disclosure. All equivalent structural transformations made by using the contents of the present disclosure and the drawings under the concept of the present disclosure, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present disclosure.

Claims

1. A coffee machine, characterized in that: The invention comprises a fluid heating device, a milk frother, a first pipeline whose inlet is connected to the outlet of the fluid heating device, a second pipeline and a third pipeline connected in parallel between the outlet of the first pipeline and the inlet of the milk frother, and a plurality of valves for controlling the on-off of the first pipeline, the second pipeline and the third pipeline, wherein the third pipeline has an air input port.

2. The coffee machine according to claim 1, characterized in that It also includes a coffee brewing chamber, a liquid outlet, a fourth pipeline whose inlet is connected to the outlet of the fluid heating device, a fifth pipeline and a sixth pipeline connected in parallel between the outlet of the fourth pipeline and the inlet of the liquid outlet, and a valve for controlling the on-off of the fourth pipeline, the fifth pipeline and the sixth pipeline; the coffee brewing chamber is located in the fifth pipeline or the sixth pipeline.

3. A method for controlling a coffee machine, characterized in that: detecting that the coffee machine has completed a first function, wherein the first function requires activation of at least one of the second pipeline and the third pipeline; sequentially controlling the opening and closing states of the plurality of valves to prevent residues from accumulating in the second pipeline or to prevent residues from being generated or accumulated in the third pipeline; The coffee machine is the coffee machine described in claim 1 or 2.

4. The control method of the coffee machine according to claim 3, characterized in that: The first function is a milk frothing function; and sequentially controlling the opening and closing states of the plurality of valves to prevent residue from being generated in the third pipeline includes: Controlling the opening and closing states of the plurality of valves to disconnect the first pipeline; The opening and closing states of the plurality of valves are controlled to disconnect the second pipeline and connect the third pipeline, so that the steam in the first pipeline is discharged to the milk frother through the third pipeline.

5. The control method of the coffee machine according to claim 3, characterized in that: The first function is a cleaning function; the sequentially controlling the opening and closing states of the plurality of valves to avoid accumulation of residues in the second pipeline or to avoid accumulation of residues in the third pipeline includes: Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive; Controlling the opening and closing states of the plurality of valves to connect the second pipeline and disconnect the third pipeline, so that the steam generated by the fluid heating device at this moment lasts for a first preset time to clear the residual water in the first pipeline and the second pipeline; Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the steam generated by the fluid heating device at this moment lasts for a second preset time to clear the residual water in the first pipeline and the third pipeline; or Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive; Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the steam generated by the fluid heating device at this moment lasts for a second preset time to clear the residual water in the first pipeline and the third pipeline; The opening and closing states of the plurality of valves are controlled to connect the second pipeline and disconnect the third pipeline, so that the residual water in the first pipeline and the second pipeline can be cleared by the steam generated by the fluid heating device for a first preset time.

6. The control method of the coffee machine according to claim 5, characterized in that: The cleaning function includes: Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive; Controlling the opening and closing states of the plurality of valves to connect the second pipeline and disconnect the third pipeline, so that the first pipeline and the second pipeline are cleaned by the water flowing through the fluid heating device at this moment; Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the first pipeline and the third pipeline are cleaned by the water flowing through the fluid heating device at this moment; or Controlling the opening and closing states of the plurality of valves to make the first pipeline conductive; Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline, so that the first pipeline and the third pipeline are cleaned by the water flowing through the fluid heating device at this moment; The opening and closing states of the plurality of valves are controlled to connect the second pipeline and disconnect the third pipeline, so that the first pipeline and the second pipeline are cleaned by the water flowing through the fluid heating device at this moment.

7. The control method of the coffee machine according to claim 3, characterized in that: The multiple valves are all solenoid valves.

8. The control method of the coffee machine according to claim 1, characterized in that: The multiple valves include a first valve, a second valve and a third valve; the first valve is arranged on the first pipeline; the inlet of the second valve is connected to the outlet of the first pipeline, the two outlets of the second valve are respectively connected to the inlet of the second pipeline and the inlet of the third pipeline, and the third valve is arranged on the third pipeline.

9. The control method of the coffee machine according to claim 8, characterized in that: Controlling the opening and closing states of the plurality of valves to disconnect the first pipeline includes: controlling the first valve to close to disconnect the first pipeline.

10. The control method of the coffee machine according to claim 8, characterized in that: Controlling the opening and closing states of the plurality of valves to disconnect the second pipeline and connect the third pipeline comprises: The second valve is controlled to open, and the third valve is controlled to open, so that the second pipeline is disconnected and the third pipeline is connected.

11. The control method of the coffee machine according to claim 8, characterized in that: Controlling the opening and closing states of the plurality of valves to connect the first pipeline includes: controlling the first valve to open to connect the first pipeline.

12. The control method of the coffee machine according to claim 8, characterized in that: Controlling the opening and closing states of the plurality of valves to connect the second pipeline and disconnect the third pipeline comprises: The second valve is controlled to be closed and the third valve is controlled to be closed, so that the second pipeline is disconnected and the third pipeline is connected.

13. The control method of the coffee machine according to claim 5, characterized in that: The temperature of the steam is greater than 100 degrees and less than or equal to 110 degrees; The first preset time and the second preset time are both no more than 5 seconds.

14. The control method of the coffee machine according to claim 3, characterized in that: The method further includes: upon detecting that the coffee machine has completed the first function, controlling the opening and closing states of valves for controlling the opening and closing of the fourth pipeline, the fifth pipeline and the sixth pipeline, so that the pipeline where the coffee brewing chamber is located is disconnected.

15. A control device for a coffee machine, comprising a memory and a processor, characterized in that: The memory is used to store a program for a control method of the coffee machine; The processor is used to read and execute the program for the control method for the coffee machine, and execute the method according to any one of claims 3 to 14.

16. A computer-readable storage medium storing computer-executable instructions, wherein: The computer executable instructions are used to cause the computer to execute the method according to any one of claims 3 to 14.

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