Control method of liquid storage assembly, liquid storage assembly and cooking utensil

Abstract

The invention discloses a control method of a liquid storage assembly, the liquid storage assembly and a cooking utensil, the liquid storage assembly is used for the cooking utensil, the cooking utensil is provided with a cooking cavity, the liquid storage assembly comprises a base, a liquid storage box, an exhaust device, a pressure detection device and a control device, and the base is provided with a liquid inlet, a liquid outlet and a liquid supply flow path communicating the liquid inlet with the liquid outlet; a liquid inlet is formed in the base, a connecting piece is arranged at the liquid inlet and used for being detachably installed with the liquid storage tank, the pressure detection device and the exhaust device are arranged corresponding to the liquid supply flow path, and the control method of the liquid storage assembly comprises the steps that after the liquid storage tank is installed on the base and an exhaust instruction is received, the exhaust device is controlled to exhaust the connecting piece; and after exhausting is completed, the pressure value detected by the pressure detection device is obtained, and the liquid amount of the liquid storage tank is calculated according to the pressure value. According to the technical scheme provided by the invention, the connecting piece is exhausted, so that the interference of gas on hydraulic detection is eliminated, and the detection precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking utensils, and in particular to a control method of a liquid storage component, a liquid storage component and a cooking utensil. Background Art

[0002] The fully automatic cooking appliance has a detachable liquid storage tank. Each time the liquid storage tank is installed, some air will remain at the connection between the liquid storage tank and the base, and the amount of residual air at the connection will be different each time the liquid storage tank is installed. At this time, a hydraulic sensor is installed in the base to detect the liquid level in the liquid storage tank. Even if the liquid level of the liquid storage tank is the same, the detection result after each installation is different, and the detection accuracy is poor. Summary of the invention

[0003] The main purpose of the present invention is to provide a control method for a liquid storage component, a liquid storage component, and a cooking utensil, aiming at improving the accuracy of the existing liquid level detection in a liquid storage tank.

[0004] To achieve the above-mentioned purpose, the present invention proposes a control method for a liquid storage component, wherein the liquid storage component is used in a cooking utensil, and the cooking utensil has a cooking cavity. The liquid storage component comprises a base, a liquid storage tank, an exhaust device, a pressure detection device, and a control device. The base is provided with a liquid inlet and a liquid outlet. The base is provided with a connector at the liquid inlet, and the connector is used for detachable installation with the liquid storage tank. A liquid supply flow path connecting the liquid inlet and the liquid outlet is formed in the base. The pressure detection device and the exhaust device are provided corresponding to the liquid supply flow path. The pressure detection device is used to detect the hydraulic pressure in the liquid supply flow path. The control device is electrically connected to the exhaust device and the pressure detection device. The control method for the liquid storage component comprises:

[0005] After the liquid storage tank is installed on the base and an exhaust command is received, the exhaust device is controlled to exhaust the connecting piece;

[0006] After the exhaust is completed, the pressure value detected by the pressure detection device is obtained to calculate the amount of liquid in the liquid storage tank according to the pressure value.

[0007] Optionally, the exhaust device includes a water pump;

[0008] After the liquid storage tank is installed on the base and an exhaust instruction is received, the step of controlling the exhaust device to exhaust the connecting member includes:

[0009] After the liquid storage tank is installed on the base and an exhaust command is received, the water pump is controlled to operate the liquid supply flow path.

[0010] Optionally, after the liquid storage tank is installed on the base and an exhaust instruction is received, the step of controlling the exhaust device to exhaust the connecting member includes:

[0011] When the liquid storage tank is mounted on the base and it is detected that the liquid storage assembly is powered on, an exhaust command is generated, and when the exhaust command is received, the exhaust device is controlled to exhaust the connecting member; and / or,

[0012] When the liquid storage tank is installed on the base and the change value received by the pressure detection device reaches a preset value, an exhaust instruction is generated. When the exhaust instruction is received, the exhaust device is controlled to exhaust the connecting piece.

[0013] Optionally, after the exhaust is completed, after the step of obtaining the pressure value detected by the pressure detection device to calculate the amount of liquid in the liquid storage tank according to the pressure value, the step further includes:

[0014] Acquiring cooking parameters, and obtaining the amount of liquid used according to the cooking parameters;

[0015] When the amount of liquid in the liquid storage tank is greater than or equal to the used liquid amount, the liquid storage component is controlled to transport the used liquid amount into the cooking cavity.

[0016] Optionally, after the step of acquiring the cooking parameters and obtaining the liquid amount according to the cooking parameters, the method further includes:

[0017] When the amount of liquid in the liquid storage tank is less than the amount of liquid used, the control generates an alarm.

[0018] Optionally, when the amount of liquid in the liquid storage tank is greater than or equal to the amount of liquid used, the step of controlling the liquid storage component to transport the amount of liquid used into the cooking cavity includes:

[0019] Determining a target liquid level of the liquid storage tank according to the amount of liquid used;

[0020] determining a first pressure value of the pressure detection device according to the target liquid level;

[0021] When the pressure value of the pressure detection device is a first pressure value, the liquid storage component is controlled to stop discharging liquid.

[0022] Optionally, the step of determining the first pressure value of the pressure detection device according to the target liquid level includes:

[0023] determining a second pressure value of the pressure sensor corresponding to the target liquid level in a scenario where the exhaust device is not working;

[0024] Get the correction value;

[0025] The first pressure value is determined according to the correction value and the second pressure value.

[0026] Optionally, the exhaust device includes a water pump, and the correction value is the pressure difference of the pressure detection device when the water pump is turned on and when the water pump is turned off.

[0027] To achieve the above objectives, the present application also proposes a liquid storage assembly for use in a cooking utensil, comprising:

[0028] A base, wherein the base is provided with a liquid inlet and a liquid outlet, the base is provided with a connecting piece at the liquid inlet, and a liquid supply flow path connecting the liquid inlet and the liquid outlet is formed in the base;

[0029] A liquid storage tank, detachably mounted on the connecting piece;

[0030] An exhaust device, connected to the liquid supply flow path, to exhaust the connecting piece;

[0031] a pressure detection device, arranged corresponding to the liquid supply flow path, for detecting the hydraulic pressure in the liquid supply flow path; and

[0032] A control device is electrically connected to the exhaust device and the pressure detection device.

[0033] Optionally, the control device includes: a memory, a processor, and a control program of the liquid storage component stored in the memory and executable on the processor, and when the control device is executed by the processor, the steps of the control method of the liquid storage component as described above are implemented.

[0034] Optionally, the connecting piece includes a liquid inlet valve.

[0035] Optionally, the connector is provided with a plug-in portion, and the liquid storage tank is provided with a matching portion, and the plug-in portion and the matching portion are plug-fitted with each other.

[0036] Optionally, the matching portion is arranged at the bottom of the liquid storage tank.

[0037] Optionally, the exhaust device includes a water pump.

[0038] Optionally, the liquid storage tank comprises a water tank.

[0039] To achieve the above objectives, the present application also proposes a cooking utensil, the cooking utensil comprising:

[0040] A liquid container having a cooking cavity formed therein; and

[0041] A liquid storage assembly, such as the liquid storage assembly described above, wherein the liquid storage assembly is connected to the cooking cavity.

[0042] Optionally, the cooking appliance further comprises a storage box assembly, wherein the storage box assembly is connected to the cooking cavity.

[0043] In the technical solution provided by the present invention, after the liquid storage tank is installed on the base and when an exhaust command is received, the exhaust device is controlled to exhaust the connecting piece, thereby eliminating the influence of the residual air in the connecting piece on the detection of the pressure detection device, thereby improving the accuracy of the pressure detection device in detecting the liquid level in the liquid storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0045] Figure 1 A schematic flow chart of a first embodiment of a liquid storage component control method provided by the present invention;

[0046] Figure 2 A schematic flow chart of a second embodiment of a liquid storage component control method provided by the present invention;

[0047] Figure 3 A schematic flow chart of a third embodiment of the liquid storage component control method provided by the present invention;

[0048] Figure 4 A schematic structural diagram of an embodiment of a cooking utensil provided by the present invention;

[0049] Figure 5 for Figure 4 A three-dimensional schematic diagram of the cooking utensils in another angle;

[0050] Figure 6 for Figure 4 A cross-sectional view of a cooking appliance in;

[0051] Figure 7 for Figure 4 A cross-sectional view of a cooking appliance in;

[0052] Figure 8 It is a schematic diagram of the structure of a control device for a hardware operating environment involved in an embodiment of the present invention.

[0053] Description of Figure Numbers:

[0054] Label name Label name 100 Liquid storage components 10 Base 20 liquid storage tank 30 Exhaust 40 Pressure detection device 200 Storage box components 300 Liquid container 1000 Cooking utensils 50 Connectors

[0055] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications 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.

[0058] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, 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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0059] The fully automatic cooking appliance has a detachable liquid storage tank. Each time the liquid storage tank is installed, some air will remain at the connection between the liquid storage tank and the base, and the amount of residual air at the connection will be different each time the liquid storage tank is installed. At this time, a hydraulic sensor is installed in the base to detect the liquid level in the liquid storage tank. Even if the liquid level of the liquid storage tank is the same, the detection result after each installation is different, and the detection accuracy is poor.

[0060] To solve the above problems, see Figure 1 and Figures 4 to 7The present invention provides a control method of a liquid storage component 100, wherein the liquid storage component 100 is used in a cooking utensil 1000, and the cooking utensil 1000 has a cooking cavity. The liquid storage component 100 comprises a base 10, a liquid storage tank 20, an exhaust device 30, a pressure detection device 40 and a control device. The base 10 is provided with a liquid inlet and a liquid outlet. The base 10 is provided with a connector 50 at the liquid inlet, and the connector 50 is used for detachable installation with the liquid storage tank 20. A liquid supply flow path connecting the liquid inlet and the liquid outlet is formed in the base 10. The pressure detection device 40 and the exhaust device 30 are provided corresponding to the liquid supply flow path. The pressure detection device 40 is used to detect the hydraulic pressure in the liquid supply flow path. The control device is electrically connected to the exhaust device 30 and the pressure detection device 40. The control method of the liquid storage component 100 comprises:

[0061] Step S100: After the liquid storage tank 20 is installed on the base 10 and an exhaust instruction is received, the exhaust device 30 is controlled to exhaust the connecting member 50;

[0062] In this embodiment, it should be noted that the pressure detection device 40 is installed on the base 10, and detects the distance between itself and the liquid level inside the liquid storage tank 20 in the vertical direction. When there is air at the connection, the accuracy of its detection will be affected. In addition, since the liquid storage tank 20 is detachable in this embodiment, the pressure detection device 40 needs to be powered on. If the pressure detection device 40 is directly installed on the liquid storage tank 20, the pressure detection device 40 needs to be connected when powered on, which has high cost and technical difficulty. If the pressure detection device 40 is arranged on the base 10, it can avoid powering on the liquid storage tank 20, reducing cost and technical difficulty.

[0063] The specific implementation form of the exhaust device 30 is not limited. It can be an air nozzle that can be opened and closed at the connecting piece 50. When exhaust is needed, the air nozzle is opened. At this time, the water in the liquid storage tank 20 moves downward under its own gravity, thereby squeezing the air out from the air nozzle. It can also be a control valve set at the liquid outlet of the liquid supply flow path. When exhaust is needed, the control valve is opened. The water in the liquid storage tank 20 flows toward the liquid outlet under the action of gravity and drives the air to be discharged outward. Of course, it can also be a water pump set in the liquid supply flow path. Through the operation of the water pump, water is pumped out of the liquid supply flow path, thereby pumping out the air, and so on. It only needs to be able to discharge the air at the connecting piece 50, and there is no limitation here.

[0064] The liquid contained in the liquid storage tank 20 is not limited, and can be water, oil, seasoning, etc., which is not limited here. In this embodiment, the liquid storage tank 20 contains water, and water is used as an example in the following description.

[0065] It is understandable that, when the liquid storage tank 20 is not installed on the base 10, venting the connecting piece 50 at this time cannot eliminate the influence of air on the pressure detection device 40. Therefore, it is necessary to control the exhaust device 30 to vent the connecting piece 50 after the liquid storage tank 20 is installed on the base 10 and when the exhaust command is received, so as to eliminate the influence of residual air at the connecting piece 50 due to the installation of the liquid storage tank 20 and improve the accuracy of the measurement result.

[0066] Step S200: After the exhaust is completed, the pressure value detected by the pressure detection device 40 is obtained to calculate the liquid amount in the liquid storage tank 20 according to the pressure value.

[0067] It should be noted that the implementation form of judging the completion of exhaust is not limited. It is understandable that each time the liquid storage tank 20 is installed, there will not be too much air remaining in the connecting piece 50. Therefore, the judgment on the completion of exhaust can be to directly control the exhaust device 30 to work for a preset time. After completing the exhaust work for the preset time, directly determine that the exhaust is completed. It can also be to directly measure the change rate of the pressure sensor. It is understandable that when exhausting air, due to the discharge of air, the influence of air on the pressure sensor gradually decreases. At this time, the change rate of the detection reading of the pressure sensor will fluctuate greatly. After the air is completely discharged, at this time, all discharged is water, and the change rate of the pressure sensor will tend to a certain value. Therefore, it is possible to judge whether the exhaust is completed by detecting the change rate of the pressure sensor. When the change rate of the pressure sensor reaches the preset value, it is determined that the exhaust is completed. Of course, other detection methods can also be used, which are not limited here.

[0068] By obtaining the pressure value detected by the pressure detection device 40, and then according to the liquid pressure formula P=ρgh, the distance from the pressure detection device 40 to the liquid surface in the liquid storage tank 20 can be calculated, and the distance between the pressure detection device 40 and the bottom of the liquid storage tank 20 is constant and known, therefore, the liquid surface height in the liquid storage tank 20 can be directly converted, and the cross-sectional area of ​​the liquid storage tank 20 is known, so the amount of liquid in the liquid storage tank 20 can be converted.

[0069] In the technical solution provided by the present invention, after the liquid storage tank 20 is installed on the base 10 and when an exhaust command is received, the exhaust device 30 is controlled to exhaust the connecting piece 50, thereby eliminating the influence of the residual air in the connecting piece 50 on the detection of the pressure detection device 40, thereby improving the accuracy of the pressure detection device 40 in detecting the liquid level in the liquid storage tank 20.

[0070] The specific implementation form of the exhaust device 30 is not limited. It can be an air nozzle that can be opened and closed at the connecting piece 50. When exhaust is needed, the air nozzle is opened. At this time, the water in the liquid storage tank 20 moves downward under its own gravity, thereby squeezing the air out from the air nozzle. It can also be a control valve set at the liquid outlet of the liquid supply flow path. When exhaust is needed, the control valve is opened. The water in the liquid storage tank 20 flows toward the liquid outlet under the action of gravity and drives the air to be discharged outward. Of course, it can also be a water pump set in the liquid supply flow path. Through the operation of the water pump, water is pumped out of the liquid supply flow path, thereby pumping out the air, and so on. It only needs to be able to discharge the air at the connecting piece 50, and there is no limitation here.

[0071] See also Figure 2 and Figures 4 to 7 , in the second embodiment of the present application, the exhaust device 30 includes a water pump;

[0072] After the liquid storage tank 20 is installed on the base 10 and an exhaust instruction is received, the step of controlling the exhaust device 30 to exhaust the connecting member 50 includes:

[0073] Step S101: after the liquid storage tank 20 is installed on the base 10 and an exhaust command is received, the water pump is controlled to operate the liquid supply flow path.

[0074] It can be understood that by setting up a water pump, the gas-liquid mixed flow in the liquid supply flow path can be directly pumped out, thereby exhausting the air in the liquid supply flow path. Compared with directly relying on the gravity of the liquid in the liquid storage tank 20, with the support of the water pump, the exhaust speed is faster and more efficient.

[0075] Moreover, the liquid storage tank 20 component is used to supply liquid to the cooking utensil 1000. By setting a water pump, the liquid supply efficiency to the cooking utensil 1000 can be effectively improved. Moreover, for the solution of the lower liquid storage tank 20, that is, the solution in which the liquid storage tank 20 is set below the base 10, the liquid in the liquid storage tank 20 cannot rely on its own gravity to flow into the liquid supply path, and exhaust and liquid delivery can also be effectively achieved.

[0076] It can be understood that the gas in the connecting member 50 enters into the interior of the connecting member 50 during the process of installing the liquid storage tank 20 and when the connecting member 50 pushes open the sealing member of the liquid storage tank 20. Therefore, if there is no process of disassembling and assembling the liquid storage tank 20, there is no air in the connecting member 50. Correspondingly, the exhaust instruction is generated after the disassembly and assembly of the liquid storage tank 20 is detected. The method of detecting the disassembly and assembly of the liquid storage tank 20 is not limited. A weight sensor may be directly provided on the base 10 to detect the weight of the object placed on the base 10. When the weight suddenly increases after being 0 or changes abnormally, it can be determined that the liquid storage tank 20 has been disassembled and assembled, and thus the connecting member 50 needs to be exhausted and an exhaust instruction is generated. Of course, an infrared sensor may also be provided on the base 10 to detect whether the liquid storage tank 20 on the base 10 has been disassembled and assembled, and an exhaust instruction is generated after the disassembly and assembly is detected, and the like is not limited here.

[0077] However, the above-mentioned solutions of setting a weight sensor or an infrared sensor all require additional sensors to increase costs. Therefore, in order to detect whether the liquid storage tank 20 is disassembled without increasing costs, an exhaust command is generated after the liquid storage tank 20 is disassembled.

[0078] After the liquid storage tank 20 is installed on the base 10 and an exhaust instruction is received, the step of controlling the exhaust device 30 to exhaust the connecting member 50 includes:

[0079] Step S102: when the liquid storage box 20 is installed on the base 10 and it is detected that the liquid storage assembly 100 is powered on, an exhaust instruction is generated, and when the exhaust instruction is received, the exhaust device 30 is controlled to exhaust the connecting member 50;

[0080] It is understandable that some liquid storage tanks 20 need to be powered off before water can be added to the liquid storage tank 20 or the liquid storage tank 20 can be disassembled and assembled. Therefore, when it is detected that the liquid storage component 100 is powered on after being powered off, it can be determined that the installation of the liquid storage tank 20 is completed. At this time, an exhaust command is generated. When the exhaust command is received, the exhaust device 30 is controlled to exhaust the connecting piece 50. In the scheme in this embodiment, by judging whether the liquid storage component 100 is powered on and off, it is determined whether the user has disassembled and assembled the liquid storage tank 20, so that the installation status detection of the liquid storage tank 20 can be achieved without the need for additional sensors.

[0081] Of course, after the liquid storage tank 20 is installed on the base 10 and an exhaust instruction is received, the step of controlling the exhaust device 30 to exhaust the connecting member 50 may also include:

[0082] Step S103: When the liquid storage tank 20 is installed on the base 10 and the change value received by the pressure detection device 40 reaches a preset value, an exhaust instruction is generated. When the exhaust instruction is received, the exhaust device 30 is controlled to exhaust the connecting member 50.

[0083] It should be noted that when the user disassembles or assembles the liquid storage tank 20 , the value detected by the pressure detection device 40 will inevitably change suddenly.

[0084] In this embodiment, by using the detection data of the pressure detection device 40, when the change value of the pressure detection device 40 reaches a preset value, for example, the detection value of the pressure detection device 40 changes suddenly, it can be determined that the user has disassembled the liquid storage tank 20. At this time, the connecting member 50 needs to be vented, so that the installation state detection of the liquid storage tank 20 can be realized without the need for additional sensors. In addition, the solution of this embodiment can be applicable to the solution of changing the liquid storage tank 20 without power failure, and can also be applicable to the solution of changing the liquid storage tank 20 without power failure.

[0085] It should be emphasized that the preset value can be measured through experimental data or can be artificially set, which is not limited here.

[0086] It is understandable that the step S102 and the step S103 may be set selectively or both, and there is no limitation on this. When both are set, the exhaust effect of the connecting member 50 is the best, and the detection of the liquid amount in the liquid storage tank 20 is the most accurate.

[0087] For further information, see Figures 3 to 7 In the third embodiment of the present application, after the exhaust is completed, after the step of obtaining the pressure value detected by the pressure detection device 40 to calculate the amount of liquid in the liquid storage tank 20 according to the pressure value, it also includes:

[0088] Step S300: Acquire cooking parameters, and obtain the amount of liquid used according to the cooking parameters;

[0089] It should be noted that the implementation form of obtaining the cooking parameters is not restricted. It can be setting a button and obtaining it by the user selecting the button, or it can be obtaining it by receiving a user's signal. There is no limitation here. After obtaining the cooking parameters, the liquid volume in the cooking parameters is obtained. For example, if the user needs to cook five bowls of rice, the corresponding liquid volume can be 500ML of water, and so on. There is no limitation here.

[0090] Step S400: When the amount of liquid in the liquid storage tank 20 is greater than or equal to the required amount of liquid, control the liquid storage assembly 100 to transport the required amount of liquid into the cooking cavity.

[0091] In the present embodiment, the exhaust device 30 is used to exhaust the connecting piece 50, thereby eliminating the influence of the residual air in the connecting piece 50 on the detection of the pressure detection device 40, thereby improving the accuracy of the pressure detection device 40 in detecting the liquid level in the liquid storage tank 20, so that the accuracy of the subsequent comparison between the liquid usage of the cooking parameters and the liquid amount in the liquid storage tank 20 is also greatly improved, and it is also avoided that when there is air in the connecting piece 50, when the liquid is transported to the cooking cavity, the air will be transported into the cooking cavity together, thereby causing the output liquid amount to be less than the liquid usage, thereby affecting the cooking effect.

[0092] At the same time, after the step of acquiring the cooking parameters and obtaining the liquid amount according to the cooking parameters, the method further includes:

[0093] Step S500: When the amount of liquid in the liquid storage tank 20 is less than the required amount of liquid, the control generates an alarm.

[0094] In this embodiment, the connecting piece 50 is vented by the exhaust device 30, thereby eliminating the influence of the residual air in the connecting piece 50 on the detection of the pressure detection device 40, and improving the accuracy of the pressure detection device 40 in detecting the liquid level in the liquid storage tank 20, thereby improving the accuracy of the subsequent comparison between the liquid usage of the cooking parameters and the liquid amount in the liquid storage tank 20. Moreover, when the liquid amount in the liquid storage tank 20 is less than the liquid usage, it indicates that the liquid amount in the liquid storage tank 20 cannot meet the user's cooking needs. At this time, an alarm is issued to prompt the user to refill the liquid storage tank 20.

[0095] It should be noted that the form of the alarm is not limited, and it can be output text information, sound and light alarm, odor alarm, etc., and is not limited here.

[0096] Specifically, it can be understood that the specific implementation form of controlling the liquid storage component 100 to transport the liquid of the required amount into the cooking cavity is not limited, and it can be transporting a specific weight of liquid into the cooking cavity, or transporting a specific volume of liquid into the cooking cavity, etc. In order to directly use the pressure sensor for quantitative measurement, step S400 includes:

[0097] Step S410: determining a target liquid level of the liquid storage tank 20 according to the liquid consumption;

[0098] The current liquid level in the liquid storage tank 20 can be determined by the current reading of the pressure sensor, and the cross-sectional area of ​​the liquid storage tank 20 is known. Therefore, after knowing the amount of liquid used, the target liquid level of the liquid storage tank 20 when the drainage is stopped can be calculated.

[0099] It should be noted that when the pressure detection device 40 is in a dynamic liquid filling state, a negative pressure will be formed in the liquid supply flow path, and there is a difference of Nmm between the measured value and the measured value in the static state. Therefore, the water pressure sensor needs to perform dynamic compensation during the dynamic liquid filling process. Under the uncompensated algorithm, when the pressure detection device 40 originally stops filling at a height of the value S mm, after dynamic compensation, the pressure detection device 40 is programmed to stop supplying water at a height of the value (SN) mm. After the liquid filling stops, the height of the water pressure sensor returns to the Smm value. In other words, the target liquid level can be set to a liquid level that is Nmm lower than the result directly calculated based on the volume, thereby eliminating the errors of the pressure detection device 40 in dynamic and static conditions.

[0100] Step S420: determining a first pressure value of the pressure detection device 40 according to the target liquid level;

[0101] Correspondingly, when the target liquid level is known, the reading of the pressure detection device 40 corresponding to the target liquid level can be converted and recorded as the first pressure value.

[0102] Step S430: When the pressure value of the pressure detection device 40 is the first pressure value, control the liquid storage assembly 100 to stop discharging liquid.

[0103] In the solution of this embodiment, the discharge volume of the liquid storage assembly 100 can be accurately controlled by the pressure detection device 40 without the need to set up additional detection elements.

[0104] It should be noted that when the pressure detection device 40 is in a dynamic liquid-inflowing state, a negative pressure will be formed in the liquid supply path, and there will be a difference between the measured value and the measured value in the static state. In order to eliminate the influence of the error of the detection value of the pressure detection device 40 in the dynamic and static states on the discharge volume of the liquid storage component 100, the purpose of accurate liquid discharge can be achieved.

[0105] The step of determining the first pressure value of the pressure detection device 40 according to the target liquid level comprises:

[0106] Step S431: determining a second pressure value of the pressure sensor corresponding to the target liquid level when the exhaust device 30 is not working;

[0107] It can be understood that once the target liquid level is determined, the second pressure value of the pressure sensor corresponding to the target liquid level can be directly calculated according to the pressure formula P=ρgh.

[0108] Step S432: obtaining a correction value;

[0109] Step S433: Determine the first pressure value according to the correction value and the second pressure value.

[0110] It can be understood that when the target liquid level is directly calculated based on the liquid usage without correction, at this time, the pressure detection device 40 is in a dynamic liquid inlet state. Due to the flow of liquid, negative pressure will be generated in the liquid supply path, which will affect the reading of the pressure detection device 40. Although the pressure detection device 40 shows that the liquid level in the liquid storage tank 20 has reached the target liquid level, in fact, it has not reached it. Therefore, it is necessary to correct the second pressure value. The correction value can be the size of the negative pressure in the liquid supply path calculated based on the flow rate of the liquid, or it can be the difference in the readings of the pressure detection device 40 when the liquid supply path is in a static or dynamic state directly measured by experiment, etc., which are not limited here.

[0111] In the scheme of the present embodiment, the first pressure value is determined by correcting the second pressure value, and when the pressure value of the pressure detection device 40 is the first pressure value, the liquid storage component 100 is controlled to stop discharging liquid, thereby eliminating the influence of the error of the detection value of the pressure detection device 40 in dynamic and static conditions on the discharge volume of the liquid storage component 100.

[0112] Furthermore, the exhaust device 30 includes a water pump, and the correction value is the pressure difference of the pressure detection device 40 when the water pump is turned on and off. Specifically, through testing, when water flows in dynamically and the pressure detection device 40 reaches a certain value, the water pump is turned off, and the pressure detection device 40 can read a static value. The correction value is obtained by subtracting the two. With such a setting, there is no need to set up additional components, and the influence of the error of the detection value of the pressure detection device 40 in dynamic and static conditions on the discharge volume of the liquid storage component 100 can be eliminated.

[0113] To achieve the above-mentioned purpose, the present application further proposes a liquid storage component 100, which is used in a cooking utensil 1000. The liquid storage component 100 includes a base 10, a liquid storage tank 20, an exhaust device 30, a pressure detection device 40 and a control device. The base 10 is provided with a liquid inlet and a liquid outlet. The base 10 is provided with a connector 50 at the liquid inlet. The connector 50 is used for detachable installation with the liquid storage tank 20. A liquid supply flow path connecting the liquid inlet and the liquid outlet is formed in the base 10. The pressure detection device 40 and the exhaust device 30 are provided corresponding to the liquid supply flow path. The pressure detection device 40 is used to detect the hydraulic pressure in the liquid supply flow path. The control device is electrically connected to the exhaust device 30 and the pressure detection device 40.

[0114] In the scheme of this embodiment, the control device is connected to the exhaust device 30 to control the exhaust device 30 to exhaust the connecting piece 50, thereby eliminating the influence of the residual air in the connecting piece 50 on the detection of the pressure detection device 40, and improving the accuracy of the pressure detection device 40 in detecting the liquid level in the liquid storage tank 20.

[0115] See also Figure 8 , the control device includes: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0116] The specific implementation form of the connecting member 50 is not limited, and it can be a threaded joint arranged on the base 10, it can be a snap-on seat arranged on the base 10, etc. The connecting member 50 includes a liquid inlet valve. With such a configuration, the liquid inlet valve can, on the one hand, serve as a detachable connection between the liquid storage tank 20, and on the other hand, can control the on-off connection of the connection between the liquid storage tank 20 and the base 10.

[0117] Specifically, the form of detachable installation between the connecting piece 50 and the liquid storage tank 20 is not limited, and can be screwed, clamped, etc. In order to simply and quickly install the liquid storage tank 20, the connecting piece 50 is provided with a plug-in portion, and the liquid storage tank 20 is provided with a matching portion. The plug-in portion and the matching portion are plug-fitted together. Compared with other installation methods, the plug-in installation method only requires the liquid storage tank 20 to be directly plugged into the connecting piece 50 to complete the installation, and the operation is simple.

[0118] Furthermore, the matching portion is arranged at the bottom of the liquid storage tank 20. With such arrangement, the water in the liquid storage tank 20 can flow out from the matching portion at the bottom of the liquid storage tank 20 under the action of its own gravity.

[0119] The specific implementation form of the exhaust device 30 is not limited. It can be an air nozzle that can be opened and closed at the connecting piece 50. When exhaust is needed, the air nozzle is opened. At this time, the water in the liquid storage tank 20 moves downward under its own gravity, thereby squeezing the air out from the air nozzle. It can also be a control valve set at the liquid outlet of the liquid supply flow path. When exhaust is needed, the control valve is opened. The water in the liquid storage tank 20 flows toward the liquid outlet under the action of gravity and drives the air to be discharged outward. Of course, it can also be a water pump set in the liquid supply flow path. Through the operation of the water pump, water is pumped out of the liquid supply flow path, thereby pumping out the air, and so on. It only needs to be able to discharge the air at the connecting piece 50, and there is no limitation here.

[0120] It can be understood that by setting up a water pump, the gas-liquid mixed flow in the liquid supply flow path can be directly pumped out, thereby exhausting the air in the liquid supply flow path. Compared with directly relying on the gravity of the liquid in the liquid storage tank 20, with the support of the water pump, the exhaust speed is faster and more efficient.

[0121] The liquid contained in the liquid storage tank 20 is not limited, and can be water, oil, seasoning, etc., which is not limited here. In this embodiment, the liquid storage tank 20 includes a water tank.

[0122] To achieve the above-mentioned purpose, the present invention further proposes a cooking utensil 1000, which includes a liquid container 300 and the above-mentioned liquid storage tank 20 assembly, and the liquid storage tank 20 assembly is connected to the liquid container 300. Since the cooking utensil 1000 includes the liquid storage tank 20 assembly, the specific structure of the liquid storage tank 20 assembly refers to the above-mentioned embodiment. Since the liquid storage tank 20 assembly of the cooking utensil 1000 adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0123] Furthermore, the cooking utensil 1000 also includes a storage box assembly 200, and the storage box assembly 200 is connected to the cooking cavity. With such an arrangement, the cooking utensil 1000 can automatically add materials and liquids into the cooking cavity and complete cooking fully automatically.

[0124] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including 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 system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0125] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0126] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0127] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A control method for a liquid storage component, characterized in that: The liquid storage assembly is used in a cooking utensil having a cooking cavity. The liquid storage assembly comprises a base, a liquid storage tank, an exhaust device, a pressure detection device and a control device. The base is provided with a liquid inlet and a liquid outlet. The base is provided with a connector at the liquid inlet. The connector is used for detachable installation with the liquid storage tank. A liquid supply flow path connecting the liquid inlet and the liquid outlet is formed in the base. The pressure detection device and the exhaust device are provided corresponding to the liquid supply flow path. The pressure detection device is used for detecting the hydraulic pressure in the liquid supply flow path. The control device is electrically connected to the exhaust device and the pressure detection device. The control method of the liquid storage assembly comprises: After the liquid storage tank is installed on the base and an exhaust command is received, the exhaust device is controlled to exhaust the connecting piece; After the exhaust is completed, the pressure value detected by the pressure detection device is obtained to calculate the amount of liquid in the liquid storage tank according to the pressure value.

2. The control method of the liquid storage assembly according to claim 1, characterized in that: The exhaust device includes a water pump; After the liquid storage tank is installed on the base and an exhaust instruction is received, the step of controlling the exhaust device to exhaust the connecting member includes: After the liquid storage tank is installed on the base and an exhaust command is received, the water pump is controlled to operate the liquid supply flow path.

3. The control method of the liquid storage assembly according to claim 1 or 2, characterized in that: After the liquid storage tank is installed on the base and an exhaust instruction is received, the step of controlling the exhaust device to exhaust the connecting member includes: When the liquid storage tank is mounted on the base and it is detected that the liquid storage assembly is powered on, an exhaust command is generated, and when the exhaust command is received, the exhaust device is controlled to exhaust the connecting member; and / or, When the liquid storage tank is installed on the base and the change value received by the pressure detection device reaches a preset value, an exhaust instruction is generated. When the exhaust instruction is received, the exhaust device is controlled to exhaust the connecting piece.

4. The control method of the liquid storage assembly according to claim 1, characterized in that: After the exhaust is completed, the step of obtaining the pressure value detected by the pressure detection device to calculate the amount of liquid in the liquid storage tank according to the pressure value further includes: Acquiring cooking parameters, and obtaining the amount of liquid used according to the cooking parameters; When the amount of liquid in the liquid storage tank is greater than or equal to the used liquid amount, the liquid storage component is controlled to transport the used liquid amount into the cooking cavity.

5. The control method of the liquid storage assembly according to claim 4, characterized in that: After the step of acquiring the cooking parameters and obtaining the liquid amount according to the cooking parameters, the method further includes: When the amount of liquid in the liquid storage tank is less than the amount of liquid used, the control generates an alarm.

6. The control method of the liquid storage assembly according to claim 4, characterized in that: When the amount of liquid in the liquid storage tank is greater than or equal to the used liquid amount, controlling the liquid storage assembly to deliver liquid to the cooking cavity, the step of the amount of liquid being equal to the used liquid amount comprises: Determining a target liquid level of the liquid storage tank according to the amount of liquid used; determining a first pressure value of the pressure detection device according to the target liquid level; When the pressure value of the pressure detection device is a first pressure value, the liquid storage component is controlled to stop discharging liquid.

7. The control method of the liquid storage assembly according to claim 6, characterized in that: The step of determining the first pressure value of the pressure detection device according to the target liquid level comprises: determining a second pressure value of the pressure sensor corresponding to the target liquid level in a scenario where the exhaust device is not working; Get the correction value; The first pressure value is determined according to the correction value and the second pressure value.

8. The control method of the liquid storage assembly according to claim 7, characterized in that: The exhaust device includes a water pump, and the correction value is the pressure difference of the pressure detection device when the water pump is turned on and when the water pump is turned off.

9. A liquid storage assembly used in a cooking utensil, characterized in that: include: A base, wherein the base is provided with a liquid inlet and a liquid outlet, the base is provided with a connecting piece at the liquid inlet, and a liquid supply flow path connecting the liquid inlet and the liquid outlet is formed in the base; A liquid storage tank, detachably mounted on the connecting piece; an exhaust device connected to the liquid supply flow path to exhaust the connecting piece; A pressure detection device, arranged corresponding to the liquid supply flow path, for detecting the hydraulic pressure in the liquid supply flow path; as well as, A control device is electrically connected to the exhaust device and the pressure detection device.

10. The liquid storage assembly according to claim 9, characterized in that: The control device includes: a memory, a processor, and a control program of the liquid storage component stored in the memory and executable on the processor. When the control device is executed by the processor, the steps of the control method of the liquid storage component as described in any one of claims 1 to 8 are implemented.

11. The liquid storage assembly according to claim 9, characterized in that: The connecting piece comprises a liquid inlet valve.

12. The liquid storage assembly according to claim 9, characterized in that: The connector is provided with an inserting portion, and the liquid storage tank is provided with a matching portion, and the inserting portion and the matching portion are plug-fitted with each other.

13. The liquid storage assembly according to claim 12, characterized in that: The matching portion is arranged at the bottom of the liquid storage tank.

14. The liquid storage assembly according to claim 9, characterized in that: The exhaust device includes a water pump.

15. The liquid storage assembly according to claim 9, characterized in that: The liquid storage tank includes a water tank.

16. A cooking utensil, characterized in that: The cooking appliance comprises: A liquid container having a cooking cavity formed therein; and A liquid storage assembly, a liquid storage assembly as described in any one of claims 9 to 15, wherein the liquid storage assembly is connected to the cooking cavity.

17. The cooking appliance according to claim 16, characterized in that The cooking appliance further comprises a storage box assembly, wherein the storage box assembly is connected to the cooking cavity.

Images