Cooking equipment, incrustation detection method and device thereof and readable storage medium

Abstract

The invention provides cooking equipment, a water scale detection method and device of the cooking equipment and a readable storage medium. The water scale detection method of the cooking equipment comprises the steps that the initial heating efficiency of an instant heating device is obtained; under the condition that the instant heating device runs, the current heating efficiency of the instant heating device is measured based on the working parameters of the instant heating device; determining an efficiency attenuation value based on the initial heating efficiency and the current heating efficiency; and based on the comparison result of the efficiency attenuation value and the efficiency attenuation threshold value, the scale amount of the instant heating device is determined.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a cooking device and a scale detection method, device and readable storage medium thereof. Background Art

[0002] An instant heating device is a heater that heats water quickly. It has a channel for liquid to flow through. When it is working, it can heat the liquid flowing through the channel, so that the temperature of the liquid output through the channel increases.

[0003] When an instantaneous heating unit heats unfiltered water, impurities in the water precipitate and adhere to the inner walls of the channels, forming scale. The higher the water hardness, the more impurities it contains, and the more scale forms on the inner walls of the channels. The presence of scale affects the heating efficiency of the instantaneous heating unit and also reduces its service life.

[0004] In the related technical solutions, some cooking equipment will count the number of times the instant heating device works, and then when the number of works reaches a certain set number, it will output an abnormal reminder to the user, prompting the user to perform a descaling operation to clean the scale in the instant heating device.

[0005] However, the environments in which instant heating devices are used vary. Therefore, even when the device has been operated for a certain number of times, there may not be much scale in the channel. However, even when the device has not been operated for a certain number of times, a lot of scale may have accumulated in the channel. Clearly, current scale detection solutions cannot accurately measure the amount of scale and cannot meet current practical needs. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0007] To this end, a first aspect of the present invention is to provide a scale detection method for a cooking device.

[0008] A second aspect of the present invention is to provide a scale detection device for cooking equipment.

[0009] A third aspect of the present invention is to provide another scale detection device for cooking equipment.

[0010] A fourth aspect of the present invention provides a readable storage medium.

[0011] A fifth aspect of the present invention provides a cooking device.

[0012] In view of this, according to a first aspect of the present invention, a scale detection method for a cooking device is provided, wherein the cooking device includes an instant heating device, and the scale detection method for the cooking device includes: obtaining the initial heating efficiency of the instant heating device; when the instant heating device is running, determining the current heating efficiency of the instant heating device based on the working parameters of the instant heating device; determining an efficiency attenuation value based on the initial heating efficiency and the current heating efficiency; and determining the amount of scale in the instant heating device based on a comparison result of the efficiency attenuation value and an efficiency attenuation threshold.

[0013] The technical solution of the present invention proposes a scale detection method for cooking equipment. By running the above-mentioned scale detection method for cooking equipment, the amount of scale in the instant heating device can be detected. By accurately estimating the amount of scale in the instant heating device, the descaling operation can be performed in time when the amount of scale is relatively large.

[0014] Specifically, when a large amount of scale accumulates, the heat generated by the instant heating device is absorbed by the scale, which reduces the heating efficiency of the instant heating device. At the same time, the presence of scale will also prevent the water output of the instant heating device from reaching the set temperature required by the user, affecting the user's normal use.

[0015] At the same time, since the heat generated by the instant heating device is absorbed by scale, in order to make the water output of the instant heating device reach the temperature desired by the user, it is necessary to increase the set temperature of the instant heating device, so that the instant heating device operates at a higher temperature for a long time, which reduces the service life of the instant heating device. By estimating the amount of scale in the instant heating device, the operating conditions of the instant heating device can be accurately known, and then when there is a lot of scale accumulation, the user can be guided to deal with it in time, reducing the impact of scale accumulation on the instant heating device, thereby improving the instant heating efficiency and service life of the instant heating device.

[0016] The technical solution of the present invention is implemented based on the following principles. Specifically, when the instant heating device is running, the working parameters of the instant heating device are obtained to estimate the current heating efficiency of the instant heating device using the working parameters of the instant heating device. When the current heating efficiency of the instant heating device is measured, the efficiency attenuation value of the instant heating device is calculated in combination with the initial heating efficiency.

[0017] There is a positive correlation between the attenuation of the heating efficiency of the instant heating device and the amount of scale accumulation. That is, as the amount of scale accumulation increases, the attenuation of the heating efficiency of the instant heating device becomes more serious. Therefore, an efficiency attenuation threshold is pre-set to measure the degree of attenuation of the heating efficiency of the instant heating device, thereby realizing the identification of the amount of scale.

[0018] In addition, the scale detection method for cooking equipment proposed in this application also has the following additional technical features.

[0019] In some technical solutions, optionally, the working parameters include the first water outlet temperature, the first water inlet temperature, the flow rate of the liquid flowing through the instant heating device and the heating power of the instant heating device. The current heating efficiency of the instant heating device is determined based on the working parameters of the instant heating device, specifically including: determining the heat value absorbed by the liquid based on the first water outlet temperature, the first water inlet temperature, the flow rate and the specific heat capacity of the liquid; and determining the ratio of the heat value to the heating power as the current heating efficiency of the instant heating device.

[0020] In this technical solution, the flow rate value is the amount of liquid heated by the instant heating device per unit time, and the heating power is the amount of heat generated by the instant heating device per unit time.

[0021] Based on this, the heat absorbed by the liquid flowing through the instant heating device per unit time can be calculated by the first water outlet temperature, the first water inlet temperature, the flow rate value and the specific heat capacity of the liquid, and the ratio of the heat absorbed by the liquid flowing through the instant heating device per unit time can be used as the current instant heating efficiency of the instant heating device.

[0022] In some technical solutions, optionally, the heat value absorbed by the liquid is determined based on the first water outlet temperature, the first water inlet temperature, the flow rate value and the specific heat capacity of the liquid, specifically including: determining a first temperature difference between the first water outlet temperature and the first water inlet temperature; and taking the product of the first temperature difference, the flow rate value and the specific heat capacity of the liquid as the heat value absorbed by the liquid.

[0023] In this technical solution, the first temperature difference is calculated to understand the temperature change of the liquid flowing through the instant heating device. The specific heat capacity is the amount of heat required for the unit volume of the liquid to increase by one degree Celsius. Therefore, the product of the specific heat capacity and the flow rate value can be regarded as the heat absorbed by the liquid flowing through the instant heating device for each degree Celsius increase in temperature. The heat value absorbed by the liquid can be obtained by multiplying the above product result by the first temperature difference.

[0024] In this technical solution, the real-time status of the instant heating device in operation can be determined based on the working parameters of the instant heating device, so that a large amount of scale accumulation can be discovered in time.

[0025] In some technical solutions, optionally, the cooking device also includes a pump, which is connected to the water circuit of the instant heating device. The scale detection method of the cooking device also includes: obtaining the set water outlet temperature of the instant heating device before the instant heating device is operated; determining the flow rate value and heating power based on the set water outlet temperature and the first water inlet temperature; controlling the pump to supply liquid to the instant heating device at the flow rate value and controlling the instant heating device to operate at the heating power.

[0026] In this technical solution, considering that the instant heating device is a device that heats liquid, the instant heating device cannot control the amount of liquid flowing through the instant heating device. Therefore, in the cooking device proposed in the present invention, a pump connected to the water path of the instant heating device is provided to control the flow rate of the liquid flowing through the instant heating device, that is, to determine the flow rate value.

[0027] In addition, in order to ensure that the instant heating device outputs liquid with a relatively stable temperature, the instant heating device needs to operate continuously and stably during the process of the pump pumping the liquid. Therefore, after obtaining the set water outlet temperature, the first water inlet temperature and the flow rate value, the instant heating power of the instant heating device is directly calculated using the above-mentioned set water outlet temperature, the first water inlet temperature and the flow rate value, so that while controlling the pump to pump liquid to the instant heating device according to the flow rate value, the instant heating device is controlled to operate at the heating power.

[0028] In some technical solutions, optionally, the cooking device also includes a flow meter, wherein the flow meter is integrated with the pump, and the operating parameters of the pump are adjusted according to the real-time flow measured by the flow meter to control the pump to stably supply liquid to the instant heating device according to the flow rate value.

[0029] In some technical solutions, optionally, a mapping relationship between the set water outlet temperature and the first water inlet temperature to determine the flow rate value and the heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the flow rate value and heating power that match them can be selected.

[0030] In some technical solutions, optionally, a mapping relationship between the second temperature difference, flow rate value and heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the temperature difference between the set water outlet temperature and the first water inlet temperature, that is, the second temperature difference, is calculated, and the matching flow rate value and heating power are found based on the above mapping relationship.

[0031] In some technical solutions, optionally, the efficiency attenuation value is determined based on the initial heating efficiency and the current heating efficiency, specifically including: determining the efficiency difference between the initial heating efficiency and the current heating efficiency; and determining the ratio of the efficiency difference to the initial heating efficiency as the efficiency attenuation value.

[0032] In this technical solution, a detailed description is given of how to calculate the efficiency attenuation value. In this technical solution, the efficiency difference is calculated by calculating the difference between the initial heating efficiency and the current heating efficiency, so as to know the difference between the current heating efficiency and the initial heating efficiency, and the above difference is compared with the initial heating efficiency to know the amplitude of the efficiency attenuation of the above difference with the initial heating efficiency as a reference, and then the amplitude of the efficiency attenuation is used as the efficiency attenuation value.

[0033] In this technical solution, compared with the determination method that directly uses the difference between the current heating efficiency and the initial heating efficiency for determination, by introducing the initial heating efficiency as a reference, the attenuation of the heating efficiency can be objectively observed, thereby improving the credibility of the scale amount determination.

[0034] In some technical solutions, optionally, the amount of scale in the instant heating device is determined based on the comparison result of the efficiency decay value and the efficiency decay threshold, specifically including: based on the efficiency decay value being greater than the efficiency decay threshold, determining that the amount of scale in the instant heating device is greater than or equal to the set scale amount; based on the efficiency decay value being less than or equal to the efficiency decay threshold, determining that the amount of scale in the instant heating device is less than the set scale amount.

[0035] In this technical solution, if the efficiency decay value exceeds the efficiency decay threshold, it is considered that the scale amount of the instant heating device is greater than or equal to the set scale amount. Conversely, if the efficiency decay value does not exceed the efficiency decay threshold, it is considered that the scale amount of the instant heating device is less than the set scale amount. In this process, the amount of scale in the instant heating device can be measured by setting a reasonable efficiency decay threshold, that is, the identification of the scale amount can be achieved.

[0036] In some technical solutions, optionally, based on the scale amount of the instant heating device being greater than or equal to a set scale amount, a reminder message is output, and the reminder message is used to prompt the user to perform a descaling operation.

[0037] In this technical solution, the cooking device outputs a reminder message to inform the user that the instant heating device needs to be descaled, that is, it reflects the current scale status of the instant heating device to the user to guide the user to clean the instant heating device.

[0038] In some technical solutions, optionally, the efficiency decay threshold is greater than or equal to 10%.

[0039] According to a second aspect of the present invention, the present invention provides a scale detection device for a cooking device, the cooking device including an instant heating device, and the scale detection device for the cooking device including: an acquisition unit for acquiring the initial heating efficiency of the instant heating device; a measurement unit for measuring the current heating efficiency of the instant heating device based on the working parameters of the instant heating device when the instant heating device is running; a calculation unit for determining an efficiency attenuation value based on the initial heating efficiency and the current heating efficiency; and a diagnosis unit for determining the amount of scale in the instant heating device based on a comparison result of the efficiency attenuation value and an efficiency attenuation threshold.

[0040] The technical solution of the present invention proposes a scale detection device for cooking equipment, which can detect the amount of scale in the instant heating device. By accurately estimating the amount of scale in the instant heating device, the descaling operation can be performed in time when the amount of scale is relatively large.

[0041] Specifically, when a large amount of scale accumulates, the heat generated by the instant heating device is absorbed by the scale, which reduces the heating efficiency of the instant heating device. At the same time, the presence of scale will also prevent the water output of the instant heating device from reaching the set temperature required by the user, affecting the user's normal use.

[0042] At the same time, since the heat generated by the instant heating device is absorbed by scale, in order to make the water output of the instant heating device reach the temperature desired by the user, it is necessary to increase the set temperature of the instant heating device, so that the instant heating device operates at a higher temperature for a long time, which reduces the service life of the instant heating device. By estimating the amount of scale in the instant heating device, the operating conditions of the instant heating device can be accurately known, and then when there is a lot of scale accumulation, the user can be guided to deal with it in time, reducing the impact of scale accumulation on the instant heating device, thereby improving the instant heating efficiency and service life of the instant heating device.

[0043] The technical solution of the present invention is implemented based on the following principles. Specifically, when the instant heating device is running, the working parameters of the instant heating device are obtained to estimate the current heating efficiency of the instant heating device using the working parameters of the instant heating device. When the current heating efficiency of the instant heating device is measured, the efficiency attenuation value of the instant heating device is calculated in combination with the initial heating efficiency.

[0044] There is a positive correlation between the attenuation of the heating efficiency of the instant heating device and the amount of scale accumulation. That is, as the amount of scale accumulation increases, the attenuation of the heating efficiency of the instant heating device becomes more serious. Therefore, an efficiency attenuation threshold is pre-set to measure the degree of attenuation of the heating efficiency of the instant heating device, thereby realizing the identification of the amount of scale.

[0045] In addition, the scale detection device for cooking equipment proposed in this application also has the following additional technical features.

[0046] In some technical solutions, optionally, the working parameters include the first water outlet temperature, the first water inlet temperature, the flow rate of the liquid flowing through the instant heating device and the heating power of the instant heating device, and the measuring unit is specifically used to: determine the heat value absorbed by the liquid based on the first water outlet temperature, the first water inlet temperature, the flow rate and the specific heat capacity of the liquid; and determine the ratio of the heat value to the heating power as the current heating efficiency of the instant heating device.

[0047] In this technical solution, the flow rate value is the amount of liquid heated by the instant heating device per unit time, and the heating power is the amount of heat generated by the instant heating device per unit time.

[0048] Based on this, the heat absorbed by the liquid flowing through the instant heating device per unit time can be calculated by the first water outlet temperature, the first water inlet temperature, the flow rate value and the specific heat capacity of the liquid, and the ratio of the heat absorbed by the liquid flowing through the instant heating device per unit time can be used as the current instant heating efficiency of the instant heating device.

[0049] In some technical solutions, optionally, the measuring unit is specifically used to: determine a first temperature difference between a first water outlet temperature and a first water inlet temperature; and take the product of the first temperature difference, the flow rate value and the specific heat capacity of the liquid as the heat value absorbed by the liquid.

[0050] In this technical solution, the first temperature difference is calculated to understand the temperature change of the liquid flowing through the instant heating device. The specific heat capacity is the amount of heat required for the unit volume of the liquid to increase by one degree Celsius. Therefore, the product of the specific heat capacity and the flow rate value can be regarded as the heat absorbed by the liquid flowing through the instant heating device for each degree Celsius increase in temperature. The heat value absorbed by the liquid can be obtained by multiplying the above product result by the first temperature difference.

[0051] In this technical solution, the real-time status of the instant heating device in operation can be determined based on the working parameters of the instant heating device, so that a large amount of scale accumulation can be discovered in time.

[0052] In some technical solutions, optionally, the cooking device also includes a pump, which is connected to the water circuit of the instant heating device; the acquisition unit is also used to: obtain the set water outlet temperature of the instant heating device before the instant heating device is operated; the measuring unit is also used to: determine the flow rate value and heating power based on the set water outlet temperature and the first water inlet temperature; control the pump to supply liquid to the instant heating device at the flow rate value and control the instant heating device to operate at the heating power.

[0053] In this technical solution, considering that the instant heating device is a device that heats liquid, the instant heating device cannot control the amount of liquid flowing through the instant heating device. Therefore, in the cooking device proposed in the present invention, a pump connected to the water path of the instant heating device is provided to control the flow rate of the liquid flowing through the instant heating device, that is, to determine the flow rate value.

[0054] In addition, in order to ensure that the instant heating device outputs liquid with a relatively stable temperature, the instant heating device needs to operate continuously and stably during the process of the pump pumping the liquid. Therefore, after obtaining the set water outlet temperature, the first water inlet temperature and the flow rate value, the instant heating power of the instant heating device is directly calculated using the above-mentioned set water outlet temperature, the first water inlet temperature and the flow rate value, so that while controlling the pump to pump liquid to the instant heating device according to the flow rate value, the instant heating device is controlled to operate at the heating power.

[0055] In some technical solutions, optionally, the cooking device also includes a flow meter, wherein the flow meter is integrated with the pump, and the operating parameters of the pump are adjusted according to the real-time flow measured by the flow meter to control the pump to stably supply liquid to the instant heating device according to the flow rate value.

[0056] In some technical solutions, optionally, a mapping relationship between the set water outlet temperature and the first water inlet temperature to determine the flow rate value and the heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the flow rate value and heating power that match them can be selected.

[0057] In some technical solutions, optionally, a mapping relationship between the second temperature difference, flow rate value and heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the temperature difference between the set water outlet temperature and the first water inlet temperature, that is, the second temperature difference, is calculated, and the matching flow rate value and heating power are found based on the above mapping relationship.

[0058] In some technical solutions, optionally, the calculation unit is specifically used to: determine the efficiency difference between the initial heating efficiency and the current heating efficiency; and determine the ratio of the efficiency difference to the initial heating efficiency as the efficiency attenuation value.

[0059] In this technical solution, a detailed description is given of how to calculate the efficiency attenuation value. In this technical solution, the efficiency difference is calculated by calculating the difference between the initial heating efficiency and the current heating efficiency, so as to know the difference between the current heating efficiency and the initial heating efficiency, and the above difference is compared with the initial heating efficiency to know the amplitude of the efficiency attenuation of the above difference with the initial heating efficiency as a reference, and then the amplitude of the efficiency attenuation is used as the efficiency attenuation value.

[0060] In this technical solution, compared with the determination method that directly uses the difference between the current heating efficiency and the initial heating efficiency for determination, by introducing the initial heating efficiency as a reference, the attenuation of the heating efficiency can be objectively observed, thereby improving the credibility of the scale amount determination.

[0061] In some technical solutions, optionally, the diagnostic unit is specifically used to: determine that the amount of scale in the instant heating device is greater than or equal to the set scale amount based on the efficiency decay value being greater than the efficiency decay threshold; determine that the amount of scale in the instant heating device is less than the set scale amount based on the efficiency decay value being less than or equal to the efficiency decay threshold.

[0062] In this technical solution, if the efficiency decay value exceeds the efficiency decay threshold, it is considered that the scale amount of the instant heating device is greater than or equal to the set scale amount. Conversely, if the efficiency decay value does not exceed the efficiency decay threshold, it is considered that the scale amount of the instant heating device is less than the set scale amount. In this process, the amount of scale in the instant heating device can be measured by setting a reasonable efficiency decay threshold, that is, the identification of the scale amount can be achieved.

[0063] In some technical solutions, optionally, based on the scale amount of the instant heating device being greater than or equal to the set scale amount, the diagnostic unit is further used to: output a reminder message, where the reminder message is used to prompt the user to perform a descaling operation.

[0064] In this technical solution, the cooking device outputs a reminder message to inform the user that the instant heating device needs to be descaled, that is, it reflects the current scale status of the instant heating device to the user to guide the user to clean the instant heating device.

[0065] In some technical solutions, optionally, the efficiency decay threshold is greater than or equal to 10%.

[0066] According to a third aspect of the present invention, the present invention provides a scale detection device for cooking equipment, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of any of the above methods are implemented.

[0067] According to a fourth aspect of the present invention, the present invention provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of any of the above methods are implemented.

[0068] According to a fifth aspect of the present invention, the present invention provides a cooking device, comprising: a scale detection device as described above in any one of the cooking devices; and / or a readable storage medium as described above.

[0069] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0071] Figure 1 A schematic flow chart of a scale detection method for a cooking device according to an embodiment of the present invention is shown;

[0072] Figure 2 A schematic structural diagram of a cooking device according to an embodiment of the present invention is shown;

[0073] Figure 3 A schematic flow chart showing a method for controlling a cooking device according to an embodiment of the present invention is shown;

[0074] Figure 4 A schematic block diagram of a scale detection device for a cooking device according to an embodiment of the present invention is shown;

[0075] Figure 5 A schematic block diagram of another scale detection device for cooking equipment according to an embodiment of the present invention is shown.

[0076] in, Figure 2The corresponding relationship between the reference numerals and component names is as follows:

[0077] 200 cooking device, 202 instant heating device, 204 pump, 206 flow meter, 208 micro control unit, 210 water tank. DETAILED DESCRIPTION

[0078] In order to more clearly understand the above aspects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0079] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0080] In one embodiment of the present application, Figure 1 and Figure 2 As shown, a scale detection method for a cooking device is provided. The cooking device 200 includes an instant heating device 202. The scale detection method for the cooking device includes:

[0081] Step 102, obtaining the initial heating efficiency of the instant heating device;

[0082] Step 104 , when the instant heating device is in operation, determining the current heating efficiency of the instant heating device based on the operating parameters of the instant heating device;

[0083] Step 106, determining an efficiency decay value based on the initial heating efficiency and the current heating efficiency;

[0084] Step 108 : determining the amount of scale in the instant heating device based on the comparison result of the efficiency decay value and the efficiency decay threshold.

[0085] An embodiment of the present invention proposes a scale detection method for cooking equipment. By running the above-mentioned scale detection method for cooking equipment, the amount of scale in the instant heating device can be detected. By accurately estimating the amount of scale in the instant heating device, descaling operations can be performed in a timely manner when the amount of scale is relatively large.

[0086] Specifically, when a large amount of scale accumulates, the heat generated by the instant heating device is absorbed by the scale, which reduces the heating efficiency of the instant heating device. At the same time, the presence of scale will also prevent the water output of the instant heating device from reaching the set temperature required by the user, affecting the user's normal use.

[0087] At the same time, since the heat generated by the instant heating device is absorbed by scale, in order to make the water output of the instant heating device reach the temperature desired by the user, it is necessary to increase the set temperature of the instant heating device, so that the instant heating device operates at a higher temperature for a long time, which reduces the service life of the instant heating device. By estimating the amount of scale in the instant heating device, the operating conditions of the instant heating device can be accurately known, and then when there is a lot of scale accumulation, the user can be guided to deal with it in time, reducing the impact of scale accumulation on the instant heating device, thereby improving the instant heating efficiency and service life of the instant heating device.

[0088] The embodiments of the present invention are implemented based on the following principles. Specifically, when the instant heating device is running, the working parameters of the instant heating device are obtained to estimate the current heating efficiency of the instant heating device using the working parameters of the instant heating device. When the current heating efficiency of the instant heating device is measured, the efficiency attenuation value of the instant heating device is calculated in combination with the initial heating efficiency.

[0089] There is a positive correlation between the attenuation of the heating efficiency of the instant heating device and the amount of scale accumulation. That is, as the amount of scale accumulation increases, the attenuation of the heating efficiency of the instant heating device becomes more serious. Therefore, an efficiency attenuation threshold is pre-set to measure the degree of attenuation of the heating efficiency of the instant heating device, thereby realizing the identification of the amount of scale.

[0090] In some embodiments, the efficiency decay threshold may be optionally selected according to actual usage needs, and its specific value will not be described in detail here.

[0091] In some embodiments, optionally, the initial heating efficiency can be a measured heating efficiency, such as the heating efficiency given by the manufacturer when the cooking device leaves the factory, or it can be the heating efficiency measured by running a heating efficiency measurement program when the cooking device is used for the first time.

[0092] In some embodiments, optionally, the heating efficiency can be understood as a percentage of the heat absorbed by the liquid heated by the instant heating device to the heat emitted by the instant heating device.

[0093] For example, the amount of heat absorbed by the liquid heated by the instant heating device is Q1, and the amount of heat emitted by the instant heating device is Q2. The initial heating efficiency is (Q1 / Q2)×100%.

[0094] In some embodiments, the instant heating device can optionally be a thick film instant heating body, wherein the thick film instant heating body is a heating body with stainless steel, glass or ceramic as a substrate, and then adopts a thick film screen printing process, combined with an insulating medium or resistor to achieve the purpose of heating water.

[0095] In some embodiments, the heating device may optionally be a worm block, wherein the worm block refers to a heating body that generates heat by utilizing the electromagnetic induction phenomenon of eddy current.

[0096] In some embodiments, optionally, the working parameters include the first water outlet temperature, the first water inlet temperature, the flow rate of the liquid flowing through the instant heating device and the heating power of the instant heating device. The current heating efficiency of the instant heating device is determined based on the working parameters of the instant heating device, specifically including: determining the heat value absorbed by the liquid based on the first water outlet temperature, the first water inlet temperature, the flow rate and the specific heat capacity of the liquid; and determining the ratio of the heat value to the heating power as the current heating efficiency of the instant heating device.

[0097] In this embodiment, the flow rate value is the amount of liquid heated by the instant heating device per unit time, and the heating power is the amount of heat generated by the instant heating device per unit time.

[0098] Based on this, the heat absorbed by the liquid flowing through the instant heating device per unit time can be calculated by the first water outlet temperature, the first water inlet temperature, the flow rate value and the specific heat capacity of the liquid, and the ratio of the heat absorbed by the liquid flowing through the instant heating device per unit time can be used as the current instant heating efficiency of the instant heating device.

[0099] In some embodiments, optionally, the heat value absorbed by the liquid is determined based on the first water outlet temperature, the first water inlet temperature, the flow rate value and the specific heat capacity of the liquid, specifically including: determining a first temperature difference between the first water outlet temperature and the first water inlet temperature; and taking the product of the first temperature difference, the flow rate value and the specific heat capacity of the liquid as the heat value absorbed by the liquid.

[0100] In this embodiment, the first temperature difference is calculated to understand the temperature change of the liquid flowing through the instant heating device. The specific heat capacity is the amount of heat required for the unit volume of the liquid to increase by one degree Celsius. Therefore, the product of the specific heat capacity and the flow rate value can be regarded as the amount of heat absorbed by the liquid flowing through the instant heating device for each degree Celsius increase in temperature. The heat value absorbed by the liquid can be obtained by multiplying the above product by the first temperature difference.

[0101] In this embodiment, the real-time status of the instant heating device in operation can be determined based on the operating parameters of the instant heating device, so that a large amount of scale accumulation can be discovered in time.

[0102] In some embodiments, optionally, as Figure 2 As shown, the cooking device 200 also includes a pump 204, which is connected to the water circuit of the instant heating device 202. The scale detection method of the cooking device also includes: obtaining the set water outlet temperature of the instant heating device before the instant heating device is operated; determining the flow rate value and the heating power based on the set water outlet temperature and the first water inlet temperature; controlling the pump to supply liquid to the instant heating device at the flow rate value and controlling the instant heating device to operate at the heating power.

[0103] In this embodiment, considering that the instant heating device is a device that heats liquid, the instant heating device cannot control the amount of liquid flowing through the instant heating device. Therefore, in the cooking device proposed by the present invention, a pump is provided that is connected to the water path of the instant heating device. The pump is used to control the flow rate of the liquid flowing through the instant heating device, that is, to determine the flow rate value.

[0104] In addition, in order to ensure that the instant heating device outputs liquid with a relatively stable temperature, the instant heating device needs to operate continuously and stably during the process of the pump pumping the liquid. Therefore, after obtaining the set water outlet temperature, the first water inlet temperature and the flow rate value, the instant heating power of the instant heating device is directly calculated using the above-mentioned set water outlet temperature, the first water inlet temperature and the flow rate value, so that while controlling the pump to pump liquid to the instant heating device according to the flow rate value, the instant heating device is controlled to operate at the heating power.

[0105] In some embodiments, optionally, the cooking device further includes a flow meter, wherein the flow meter is integrated with the pump, and the operating parameters of the pump are adjusted according to the real-time flow measured by the flow meter to control the pump to stably supply liquid to the instant heating device according to the flow rate value.

[0106] In some embodiments, optionally, a mapping relationship between the set water outlet temperature, the first water inlet temperature, the flow rate value and the heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the flow rate value and heating power that match them can be selected.

[0107] In some embodiments, optionally, a mapping relationship between the second temperature difference, flow rate value and heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the temperature difference between the set water outlet temperature and the first water inlet temperature, that is, the second temperature difference, is calculated, and the matching flow rate value and heating power are found based on the above mapping relationship.

[0108] In some embodiments, optionally, determining the efficiency attenuation value based on the initial heating efficiency and the current heating efficiency specifically includes: determining the efficiency difference between the initial heating efficiency and the current heating efficiency; and determining the ratio of the efficiency difference to the initial heating efficiency as the efficiency attenuation value.

[0109] In this embodiment, a detailed description is given of how to calculate the efficiency attenuation value. In this embodiment, the efficiency difference is calculated by calculating the difference between the initial heating efficiency and the current heating efficiency, so as to know the difference between the current heating efficiency and the initial heating efficiency, and the above difference is compared with the initial heating efficiency to know the amplitude of the efficiency attenuation of the above difference with the initial heating efficiency as a reference, and then the amplitude of the efficiency attenuation is used as the efficiency attenuation value.

[0110] In this embodiment, compared with the determination method that directly uses the difference between the current heating efficiency and the initial heating efficiency for determination, by introducing the initial heating efficiency as a reference, the attenuation of the heating efficiency can be objectively observed, thereby improving the credibility of the scale amount determination.

[0111] For example, the initial heating efficiency is 80%, the current heating efficiency is 50%, the efficiency difference is 30%, and the efficiency attenuation value is 30% divided by 80%, that is, 3 / 8.

[0112] In some embodiments, optionally, the amount of scale in the instant heating device is determined based on the comparison result of the efficiency decay value and the efficiency decay threshold, specifically including: based on the efficiency decay value being greater than the efficiency decay threshold, determining that the amount of scale in the instant heating device is greater than or equal to the set scale amount; based on the efficiency decay value being less than or equal to the efficiency decay threshold, determining that the amount of scale in the instant heating device is less than the set scale amount.

[0113] In this embodiment, if the efficiency decay value exceeds the efficiency decay threshold, it is considered that the scale amount of the instant heating device is greater than or equal to the set scale amount. Conversely, if the efficiency decay value does not exceed the efficiency decay threshold, it is considered that the scale amount of the instant heating device is less than the set scale amount. In this process, the amount of scale in the instant heating device can be measured by setting a reasonable efficiency decay threshold, that is, the identification of the scale amount can be achieved.

[0114] In some embodiments, the set scale amount corresponds to the efficiency decay threshold one-to-one, that is, the efficiency decay threshold can be selected according to actual usage needs, and then the set scale amount is determined according to the selected efficiency decay threshold, so as to determine whether the scale amount of the current state of the instant heating device exceeds the set scale amount.

[0115] In some embodiments, optionally, based on the scale amount of the instant heating device being greater than or equal to a set scale amount, a reminder message is output, and the reminder message is used to prompt the user to perform a descaling operation.

[0116] In this embodiment, the cooking device outputs a reminder message to inform the user that the instant heating device needs to be descaled, that is, it reflects the current scale status of the instant heating device to the user to guide the user to clean the instant heating device.

[0117] In some embodiments, the reminder information may optionally be one or more of a text reminder, a light reminder, and a sound reminder.

[0118] For example, the text reminder may be “There is a lot of scale, please descale.”

[0119] For example, the light reminder may be that an indicator light related to scale flashes or emits a red light.

[0120] For example, the sound reminder may be an audio message that announces “There is too much scale, please perform descaling”.

[0121] In some embodiments, optionally, the efficiency decay threshold is greater than or equal to 10%.

[0122] For example, in some embodiments, the efficiency decay threshold is 20%; in some embodiments, the efficiency decay threshold is 25%; in some embodiments, the efficiency decay threshold is 30%.

[0123] In some embodiments, the descaling operation may be performed manually by the user, or the descaling operation may be performed by running a program for descaling the instant heating device.

[0124] In some embodiments, the prompt information may include first-type prompt information or second-type prompt information, wherein the first-type prompt information is used to suggest performing a descaling operation, and the second-type prompt information is used to prompt the user to forcibly perform the descaling operation.

[0125] Specifically, based on the scale amount of the instant heating device being greater than or equal to the set scale amount, a first type of prompt information is output; based on the scale amount of the instant heating device being greater than or equal to the maximum allowable scale amount, a second type of prompt information is output, and the maximum allowable scale amount is greater than the set scale amount.

[0126] The maximum permissible scale amount can be obtained by reading the factory data of the instant heating device, or can be set by the user.

[0127] In some embodiments, the scale detection method for cooking equipment proposed in the present application is run in the initial stage of the cooking equipment performing a preset function, wherein the initial stage may be the stage when the cooking equipment is initialized before performing the preset function, and the preset function also includes the cooking stage after the initial stage is completed.

[0128] Based on this, after outputting the first type of prompt information, the scale detection method for the cooking device further includes:

[0129] After the descaling operation is complete, run the cooking phase of the pre-set function; or

[0130] Displaying a first operating control, and when the first operating control is selected, executing the cooking stage according to a preset function; or

[0131] Within a first period of time after the first type of prompt information is output, if no descaling operation is detected, the cooking stage of the preset function is operated.

[0132] Among them, if the user manually cleans to perform the descaling operation, it is necessary to manually control the cooking equipment to reset the instant heating device, and then inform the cooking equipment that the descaling is completed. Based on this, the cooking equipment can determine whether the descaling operation is completed by judging whether the instant heating device is reset.

[0133] The first operation control includes a control for instructing to ignore the first prompt information.

[0134] For example, a symbol of "Ignore" is displayed in the first operation control. If the first operation control is selected, the cooking stage of the preset function is executed.

[0135] For example, a "next step" text icon is displayed in the first operation control. If the first operation control is selected, the cooking stage of the preset function is executed.

[0136] Based on this, after outputting the second type of prompt information, the scale detection method for the cooking device further includes:

[0137] After the descaling operation is complete, run the cooking phase of the pre-set function; or

[0138] When no descaling operation is detected, the second type of prompt information is continuously output until the descaling operation is completed.

[0139] In one embodiment, after outputting the second type of prompt information, the scale detection method for a cooking device further includes:

[0140] Displaying a first operating control, wherein when no descaling operation is detected, the first operating control is in an inoperable state, and when the descaling operation is detected to be finished, the first operating control is switched from the inoperable state to the operable state;

[0141] In the inoperable state, the first operating control cannot be selected, and in the operable state, the first operating control can be selected.

[0142] Exemplarily, when no descaling operation is detected, the first operation control is in the first grayscale, that is, the icon displaying the word "Ignore" in the first operation control above is in the first grayscale; when a descaling operation is detected, the first operation control is in the first grayscale, that is, the icon displaying the word "Ignore" in the first operation control above is in the second grayscale.

[0143] In some embodiments, optionally, as Figure 2As shown, the cooking device 200 also includes a microcontroller unit 208 (MCU), wherein the microcontroller unit 208 is electrically connected to the pump 204, the instant heating device 202, and the flow meter 206, and uses the flow meter 206 to obtain the flow rate value of the liquid supplied by the pump 204 to the instant heating device 202, and controls the operation of the pump 204 and the instant heating device 202.

[0144] In some embodiments, optionally, the cooking device 200 further includes a water tank 210 for storing liquid, wherein the pump 204 is in water communication with the water tank 210 so as to take liquid from the water tank 210 and supply the liquid to the instant heating device 202 .

[0145] In some embodiments, optionally, the cooking device 200 further includes a water inlet temperature sensor and a water outlet temperature sensor, wherein the water inlet temperature sensor is located at the water inlet of the instant heating device, and the water outlet temperature sensor is located at the water outlet of the instant heating device.

[0146] like Figure 2 As shown, the water inlet temperature sensor and the water outlet temperature sensor are negative temperature coefficient (NTC) thermistors.

[0147] In some embodiments, optionally, as Figure 3 As shown, the control method of the cooking device includes:

[0148] Step 302 , reading the preset water outlet temperature T0 of the preset function, and detecting the water inlet temperature T1 .

[0149] Step 304 : Calculate the required power P1 and pump flow rate V1 based on the outlet water temperature T0 and the inlet water temperature T1 .

[0150] Step 306 , controlling the water pump to operate at a flow rate of V1 and controlling the heater to operate at a power of P1 .

[0151] Step 308: Wait for the flow rate and temperature to stabilize.

[0152] Step 310: The temperature sensor detects the water inlet temperature T1 and the water outlet temperature T2.

[0153] Step 312, calculate the heat absorbed by water P2 = c × V1 × (T2 - T1).

[0154] Step 314 , calculating the heating efficiency of the heating module e1 = (P2 / P1)×100%.

[0155] Step 316 , calculating the heating efficiency decay of the heating module k=((e0−e1) / e0)×100%.

[0156] In step 318 , k ≥ k0, if the judgment result is yes, execute step 320 ; if the judgment result is no, execute step 322 .

[0157] Step 320: The interactive interface prompts descaling.

[0158] Step 322, executing subsequent steps of the preset function.

[0159] Among them, the preset water outlet temperature T0 is also the set water outlet temperature in the present invention, the water inlet temperature T1 is also the first water inlet temperature in the present invention, the power P1 is also the heating power in the present invention, the water pump flow rate V1 is also the flow rate value in the present invention, the heating module and the heater are also the instant heating device in the present invention, the heating efficiency e1 is also the current heating efficiency in the present invention, e0 is also the initial heating efficiency in the present invention, the heating efficiency attenuation k is also the efficiency attenuation value in the present invention, k0 is also the efficiency attenuation threshold in the present invention, and c is the specific heat capacity of the liquid.

[0160] In this embodiment, the scale detection process can be embedded in the preset function of the cooking device. Each time the preset function is used, the detection is performed at the initial stage of the preset function startup, and the subsequent steps of the preset function are performed after the detection is completed. If a large amount of scale is detected, the user is prompted to perform descaling through an indicator light on the interface. In one embodiment, Figure 4 As shown, the present invention provides a scale detection device 400 for a cooking device, wherein the cooking device includes an instant heating device, and the scale detection device 400 for the cooking device includes: an acquisition unit 402, for acquiring the initial heating efficiency of the instant heating device; a measurement unit 404, for measuring the current heating efficiency of the instant heating device based on the working parameters of the instant heating device when the instant heating device is running; a calculation unit 406, for determining an efficiency decay value based on the initial heating efficiency and the current heating efficiency; and a diagnosis unit 408, for determining the amount of scale in the instant heating device based on a comparison result of the efficiency decay value and an efficiency decay threshold.

[0161] An embodiment of the present invention provides a scale detection device 400 for a cooking device, which can detect the amount of scale in the instant heating device. By accurately estimating the amount of scale in the instant heating device, a descaling operation can be performed in a timely manner when the amount of scale is relatively large.

[0162] Specifically, when a large amount of scale accumulates, the heat generated by the instant heating device is absorbed by the scale, which reduces the heating efficiency of the instant heating device. At the same time, the presence of scale will also prevent the water output of the instant heating device from reaching the set temperature required by the user, affecting the user's normal use.

[0163] At the same time, since the heat generated by the instant heating device is absorbed by scale, in order to make the water output of the instant heating device reach the temperature desired by the user, it is necessary to increase the set temperature of the instant heating device, so that the instant heating device operates at a higher temperature for a long time, which reduces the service life of the instant heating device. By estimating the amount of scale in the instant heating device, the operating conditions of the instant heating device can be accurately known, and then when there is a lot of scale accumulation, the user can be guided to deal with it in time, reducing the impact of scale accumulation on the instant heating device, thereby improving the instant heating efficiency and service life of the instant heating device.

[0164] The embodiments of the present invention are implemented based on the following principles. Specifically, when the instant heating device is running, the working parameters of the instant heating device are obtained to estimate the current heating efficiency of the instant heating device using the working parameters of the instant heating device. When the current heating efficiency of the instant heating device is measured, the efficiency attenuation value of the instant heating device is calculated in combination with the initial heating efficiency.

[0165] There is a positive correlation between the attenuation of the heating efficiency of the instant heating device and the amount of scale accumulation. That is, as the amount of scale accumulation increases, the attenuation of the heating efficiency of the instant heating device becomes more serious. Therefore, an efficiency attenuation threshold is pre-set to measure the degree of attenuation of the heating efficiency of the instant heating device, thereby realizing the identification of the amount of scale.

[0166] In some embodiments, the efficiency decay threshold may be optionally selected according to actual usage needs, and its specific value will not be described in detail here.

[0167] In some embodiments, optionally, the initial heating efficiency can be a measured heating efficiency, such as the heating efficiency given by the manufacturer when the cooking device leaves the factory, or it can be the heating efficiency measured by running a heating efficiency measurement program when the cooking device is used for the first time.

[0168] In some embodiments, optionally, the heating efficiency can be understood as a percentage of the heat absorbed by the liquid heated by the instant heating device to the heat emitted by the instant heating device.

[0169] For example, the amount of heat absorbed by the liquid heated by the instant heating device is Q1, and the amount of heat emitted by the instant heating device is Q2. The initial heating efficiency is (Q1 / Q2)×100%.

[0170] In some embodiments, the instant heating device can optionally be a thick film instant heating body, wherein the thick film instant heating body is a heating body with stainless steel, glass or ceramic as a substrate, and then adopts a thick film screen printing process, combined with an insulating medium or resistor to achieve the purpose of heating water.

[0171] In some embodiments, the heating device may optionally be a worm block, wherein the worm block refers to a heating body that generates heat by utilizing the electromagnetic induction phenomenon of eddy current.

[0172] In some embodiments, optionally, the operating parameters include the first water outlet temperature, the first water inlet temperature, the flow rate of the liquid flowing through the instant heating device and the heating power of the instant heating device. The measuring unit 404 is specifically used to: determine the heat value absorbed by the liquid based on the first water outlet temperature, the first water inlet temperature, the flow rate and the specific heat capacity of the liquid; and determine the ratio of the heat value to the heating power as the current heating efficiency of the instant heating device.

[0173] In this embodiment, the flow rate value is the amount of liquid heated by the instant heating device per unit time, and the heating power is the amount of heat generated by the instant heating device per unit time.

[0174] Based on this, the heat absorbed by the liquid flowing through the instant heating device per unit time can be calculated by the first water outlet temperature, the first water inlet temperature, the flow rate value and the specific heat capacity of the liquid, and the ratio of the heat absorbed by the liquid flowing through the instant heating device per unit time can be used as the current instant heating efficiency of the instant heating device.

[0175] In some embodiments, optionally, the measuring unit 404 is specifically used to: determine a first temperature difference between a first water outlet temperature and a first water inlet temperature; and use the product of the first temperature difference, the flow rate value and the specific heat capacity of the liquid as the heat value absorbed by the liquid.

[0176] In this embodiment, the first temperature difference is calculated to understand the temperature change of the liquid flowing through the instant heating device. The specific heat capacity is the amount of heat required for the unit volume of the liquid to increase by one degree Celsius. Therefore, the product of the specific heat capacity and the flow rate value can be regarded as the amount of heat absorbed by the liquid flowing through the instant heating device for each degree Celsius increase in temperature. The heat value absorbed by the liquid can be obtained by multiplying the above product by the first temperature difference.

[0177] In this embodiment, the real-time status of the instant heating device in operation can be determined based on the operating parameters of the instant heating device, so that a large amount of scale accumulation can be discovered in time.

[0178] In some embodiments, optionally, the cooking device further includes a pump, which is connected to the water circuit of the instant heating device. The acquisition unit 402 is further used to: obtain the set water outlet temperature of the instant heating device before the instant heating device is operated; the measurement unit 404 is further used to: determine the flow rate value and heating power based on the set water outlet temperature and the first water inlet temperature; control the pump to supply liquid to the instant heating device at the flow rate value and control the instant heating device to operate at the heating power.

[0179] In this embodiment, considering that the instant heating device is a device that heats liquid, the instant heating device cannot control the amount of liquid flowing through the instant heating device. Therefore, in the cooking device proposed by the present invention, a pump is provided that is connected to the water path of the instant heating device. The pump is used to control the flow rate of the liquid flowing through the instant heating device, that is, to determine the flow rate value.

[0180] In addition, in order to ensure that the instant heating device outputs liquid with a relatively stable temperature, the instant heating device needs to operate continuously and stably during the process of the pump pumping the liquid. Therefore, after obtaining the set water outlet temperature, the first water inlet temperature and the flow rate value, the instant heating power of the instant heating device is directly calculated using the above-mentioned set water outlet temperature, the first water inlet temperature and the flow rate value, so that while controlling the pump to pump liquid to the instant heating device according to the flow rate value, the instant heating device is controlled to operate at the heating power.

[0181] In some embodiments, optionally, the cooking device further includes a flow meter, wherein the flow meter is integrated with the pump, and the operating parameters of the pump are adjusted according to the real-time flow measured by the flow meter to control the pump to stably supply liquid to the instant heating device according to the flow rate value.

[0182] In some embodiments, optionally, a mapping relationship between the set water outlet temperature, the first water inlet temperature, the flow rate value and the heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the flow rate value and heating power that match them can be selected.

[0183] In some embodiments, optionally, a mapping relationship between the second temperature difference, flow rate value and heating power is pre-constructed, and then after obtaining the set water outlet temperature and the first water inlet temperature, the temperature difference between the set water outlet temperature and the first water inlet temperature, that is, the second temperature difference, is calculated, and the matching flow rate value and heating power are found based on the above mapping relationship.

[0184] In some embodiments, optionally, the calculation unit 406 is specifically configured to: determine an efficiency difference between an initial heating efficiency and a current heating efficiency; and determine a ratio of the efficiency difference to the initial heating efficiency as an efficiency attenuation value.

[0185] In this embodiment, a detailed description is given of how to calculate the efficiency attenuation value. In this embodiment, the efficiency difference is calculated by calculating the difference between the initial heating efficiency and the current heating efficiency, so as to know the difference between the current heating efficiency and the initial heating efficiency, and the above difference is compared with the initial heating efficiency to know the amplitude of the efficiency attenuation of the above difference with the initial heating efficiency as a reference, and then the amplitude of the efficiency attenuation is used as the efficiency attenuation value.

[0186] In this embodiment, compared with the determination method that directly uses the difference between the current heating efficiency and the initial heating efficiency for determination, by introducing the initial heating efficiency as a reference, the attenuation of the heating efficiency can be objectively observed, thereby improving the credibility of the scale amount determination.

[0187] For example, the initial heating efficiency is 80%, the current heating efficiency is 50%, the efficiency difference is 30%, and the efficiency attenuation value is 30% divided by 80%, that is, 3 / 8.

[0188] In some embodiments, optionally, the diagnostic unit 408 is specifically used to: determine that the amount of scale in the instant heating device is greater than or equal to the set amount of scale based on the efficiency decay value being greater than the efficiency decay threshold; determine that the amount of scale in the instant heating device is less than the set amount of scale based on the efficiency decay value being less than or equal to the efficiency decay threshold.

[0189] In this embodiment, if the efficiency decay value exceeds the efficiency decay threshold, it is considered that the scale amount of the instant heating device is greater than or equal to the set scale amount. Conversely, if the efficiency decay value does not exceed the efficiency decay threshold, it is considered that the scale amount of the instant heating device is less than the set scale amount. In this process, the amount of scale in the instant heating device can be measured by setting a reasonable efficiency decay threshold, that is, the identification of the scale amount can be achieved.

[0190] In some embodiments, the set scale amount corresponds to the efficiency decay threshold one-to-one, that is, the efficiency decay threshold can be selected according to actual usage needs, and then the set scale amount is determined according to the selected efficiency decay threshold, so as to determine whether the scale amount of the current state of the instant heating device exceeds the set scale amount.

[0191] In some embodiments, optionally, based on the scale amount of the instant heating device being greater than or equal to a set scale amount, the diagnostic unit 408 is further configured to: output a reminder message, the reminder message being used to prompt the user to perform a descaling operation.

[0192] In this embodiment, the cooking device outputs a reminder message to inform the user that the instant heating device needs to be descaled, that is, it reflects the current scale status of the instant heating device to the user to guide the user to clean the instant heating device.

[0193] In some embodiments, the reminder information may optionally be one or more of a text reminder, a light reminder, and a sound reminder.

[0194] For example, the text reminder may be “There is a lot of scale, please descale.”

[0195] For example, the light reminder may be that an indicator light related to scale flashes or emits a red light.

[0196] For example, the sound reminder may be an audio message that announces “There is too much scale, please perform descaling”.

[0197] In some embodiments, optionally, the efficiency decay threshold is greater than or equal to 10%.

[0198] For example, in some embodiments, the efficiency decay threshold is 20%; in some embodiments, the efficiency decay threshold is 25%; in some embodiments, the efficiency decay threshold is 30%.

[0199] In one embodiment, Figure 5 As shown, the present invention provides a scale detection device 500 for cooking equipment, including a processor 502 and a memory 504. The memory 504 stores programs or instructions that can be run on the processor 502. When the program or instruction is executed by the processor 502, the steps of any of the above methods are implemented.

[0200] The memory 504 can be used to store software programs and various data. The memory 504 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area can store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 504 can include a volatile memory or a non-volatile memory, or the memory can include both volatile and non-volatile memories. The non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct RAM bus random access memory (DRRAM). The memory in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0201] In one embodiment, the present invention provides a readable storage medium storing a program or instruction. When the program or instruction is executed by a processor, the steps of any one of the above methods are implemented.

[0202] In one embodiment, the present invention provides a cooking device, comprising: a scale detection device as described above for any cooking device; and / or a readable storage medium as described above.

[0203] In one embodiment, the cooking device is any one of a wall-breaking machine, a soymilk maker, and an instant electric kettle.

[0204] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0205] In the description of the present invention, it is understood that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection between two components or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0206] In the claims, specification, and drawings of the present invention, the terms "one embodiment," "some embodiments," "a specific embodiment," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification, and drawings of the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0207] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for detecting scale in cooking equipment, characterized in that: The cooking device includes an instant heating device, and the scale detection method of the cooking device includes: Obtaining an initial heating efficiency of the instant heating device; When the instant heating device is in operation, determining a current heating efficiency of the instant heating device based on operating parameters of the instant heating device; determining an efficiency decay value based on the initial heating efficiency and the current heating efficiency; The amount of scale in the instant heating device is determined based on a comparison result of the efficiency decay value and an efficiency decay threshold.

2. The scale detection method for cooking equipment according to claim 1, characterized in that: The operating parameters include a first water outlet temperature, a first water inlet temperature, a flow rate of liquid flowing through the instant heating device, and a heating power of the instant heating device. Determining the current heating efficiency of the instant heating device based on the operating parameters of the instant heating device specifically includes: determining a heat value absorbed by the liquid based on the first water outlet temperature, the first water inlet temperature, the flow rate value, and the specific heat capacity of the liquid; The ratio of the calorific value to the heating power is determined as the current heating efficiency of the instant heating device.

3. The scale detection method for cooking equipment according to claim 2, characterized in that: The determining of the heat value absorbed by the liquid based on the first water outlet temperature, the first water inlet temperature, the flow rate value, and the specific heat capacity of the liquid specifically includes: determining a first temperature difference between the first water outlet temperature and the first water inlet temperature; The product of the first temperature difference, the flow rate value and the specific heat capacity of the liquid is used as the heat value absorbed by the liquid.

4. The scale detection method for cooking equipment according to claim 2, characterized in that: The cooking device further includes a pump, the pump being in communication with a water path of the instant heating device. The scale detection method for the cooking device further includes: Obtaining a set outlet water temperature of the instant heating device before the instant heating device is operated; Determining the flow rate value and the heating power based on the set water outlet temperature and the first water inlet temperature; The pump is controlled to supply liquid to the instant heating device at the flow rate value and the instant heating device is controlled to operate at the heating power.

5. The scale detection method for cooking equipment according to any one of claims 1 to 4, characterized in that: The determining of the efficiency attenuation value based on the initial heating efficiency and the current heating efficiency specifically includes: determining an efficiency difference between the initial heating efficiency and the current heating efficiency; The ratio of the efficiency difference to the initial heating efficiency is determined as an efficiency decay value.

6. The scale detection method for cooking equipment according to any one of claims 1 to 4, characterized in that: The determining the amount of scale in the instant heating device based on the comparison result of the efficiency decay value and the efficiency decay threshold value specifically includes: Based on the efficiency decay value being greater than the efficiency decay threshold, determining that the amount of scale in the instant heating device is greater than or equal to a set amount of scale; Based on the efficiency decay value being less than or equal to an efficiency decay threshold, it is determined that the scale amount of the instant heating device is less than a set scale amount.

7. The scale detection method for cooking equipment according to claim 6, characterized in that: Based on the scale amount of the instant heating device being greater than or equal to the set scale amount, a reminder message is output, where the reminder message is used to prompt the user to perform a descaling operation.

8. The scale detection method for cooking equipment according to claim 6, characterized in that: The efficiency decay threshold is greater than or equal to 10%.

9. A scale detection device for cooking equipment, characterized in that: The cooking device includes an instant heating device, and the scale detection device of the cooking device includes: an acquisition unit, configured to acquire an initial heating efficiency of the instant heating device; a determination unit, configured to determine a current heating efficiency of the instant heating device based on an operating parameter of the instant heating device when the instant heating device is in operation; a calculation unit, configured to determine an efficiency decay value based on the initial heating efficiency and the current heating efficiency; The diagnostic unit is configured to determine the amount of scale in the instant heating device based on a comparison result of the efficiency decay value and an efficiency decay threshold.

10. A scale detection device for cooking equipment, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the scale detection method for a cooking device according to any one of claims 1 to 8 are implemented.

11. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the scale detection method for a cooking device according to any one of claims 1 to 8 are implemented.

12. A cooking device, characterized in that: include: The scale detection device for cooking equipment according to claim 9 or 10; and / or The readable storage medium of claim 11.

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