A cleaning control method of a food processor

Abstract

The application discloses a cleaning control method of a food processor. The food processor comprises a base provided with a motor, a processing cavity arranged on the base, a liquid supply assembly for supplying water to the processing cavity, a liquid discharge assembly for discharging liquid in the processing cavity, and a heating assembly. After beverage preparation is completed, the liquid discharge assembly empties the beverage in the processing cavity. After the liquid discharge assembly empties the beverage in the processing cavity, the cleaning control method comprises the following steps: keeping the processing cavity in an empty state; under the condition that the processing cavity is in the empty state, the heating assembly performs dry burning on the processing cavity; and after the dry burning is completed, at least one cleaning stage is arranged, which comprises adding cleaning liquid into the processing cavity by the liquid supply assembly, rotating the motor to drive the cleaning liquid to wash and clean the inner wall of the processing cavity. The application adds dry burning in the cleaning method to improve the cleaning effect on the processing cavity, and has good cleaning effect on the processing cavity after hot beverage preparation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food processing, in particular to a cleaning control method of a food processor. BACKGROUND

[0002] Generally, for food processors with heating function, such as electric rice cookers, soybean milk machines, blenders, baby food machines, etc., people initially think that dry burning is a phenomenon that has adverse effects on the machine itself and the cooking of food materials. For example, 1. The dry burning of the food processor will burn the food material, affecting the eating taste of the food material; 2. The long-time dry burning of the food processor will also damage the heater, not only with high repair cost, but also with the risk of fire. Therefore, the anti-dry burning mechanism is set on the general food processor.

[0003] Of course, researchers have also found that dry burning in a food processor is not completely disadvantageous. When used reasonably, it can also play a role in drying and sterilizing in the food processor. As early as 2012, the patent with the application number 201110062859.1 improved the ordinary electric machine-over type soybean milk machine, which needed to separate the head from the cup body to dry to prevent the generation of peculiar smell in the cup body after making soybean milk and cleaning. By adding a drying control module inside the cup body to dry the cleaned cup body and head and prevent peculiar smell. After that, with the further evolution of the soybean milk machine, self-cleaning soybean milk machines and self-cleaning blenders appeared. However, the residual water stains in the processing cavity after self-cleaning are difficult to remove because the processing cavity cannot be disassembled. Therefore, the patent with the application number 201620355167.4 discloses a full-automatic small-space crushing food processor, which sets a heating device on the small-space crushing device. When the cleaning liquid in the small-space crushing cavity is drained, the small-space crushing cavity is heated by the heating device (i.e. dry burning), so that the water stains in the small-space crushing cavity evaporate, thereby keeping the crushing cavity dry, avoiding rust, and preventing the growth of bacteria.

[0004] In addition, in the field of similar tableware cleaning technology, the patent with the application number 201510304003.9 discloses a drying equipment for a dishwasher, which provides high-temperature hot air for the drying chamber through a heat pump assembly to blow off or vaporize the water marks on the tableware.

[0005] However, in addition to the above-mentioned drying technology for food processing machine drying cavity or bowl after cleaning effect of the instrument, but also no researchers consider the drying technology is applied to the food processing machine cleaning program to improve the cleaning effect of food processing machine. It is well known that for food processing machine with self-cleaning function, when making soy milk, milkshake, etc. The hot drink with more viscosity, the machine is cooled quickly after the discharge of the residue on the inner wall of the cavity. Because the inner wall of the processing cavity is smooth and has strong adhesion, the existing flushing force formed by the motor rotation is not enough to clean the inner wall of the cavity. The inner wall of the self-cleaning cavity has obvious material traces, and in this case, if the machine is put, there are odor, bacteria breeding and other health and safety problems. If you want to clean completely, you need to repeat the self-cleaning program many times, which not only wastes water and power, but also has a very poor user experience. SUMMARY

[0006] To solve the above-mentioned problem of poor self-cleaning effect of food processing machine, especially the problem of difficult cleaning of processing cavity after making hot drink, the application provides a cleaning control method of food processing machine, which applies drying stage to the cleaning method of food processing machine to improve the self-cleaning effect of food processing machine.

[0007] The cleaning control method of food processing machine provided by the embodiment of the application includes a base with a motor, a processing cavity on the base, a liquid supply assembly for supplying water to the processing cavity, a liquid discharge assembly for discharging liquid in the processing cavity, and a heating assembly. After the beverage is made, the liquid discharge assembly empties the beverage in the processing cavity, and after the liquid discharge assembly empties the beverage in the processing cavity, the cleaning control method includes the following steps:

[0008] Maintain the processing cavity in an empty state;

[0009] The heating assembly performs dry burning on the processing cavity when the processing cavity is in the empty state;

[0010] At least one cleaning stage is provided after dry burning, and the cleaning stage includes the liquid supply assembly adding cleaning liquid to the processing cavity, and the motor rotating and driving the cleaning liquid to flush and clean the inner wall of the processing cavity.

[0011] Optionally, the beverage in the processing cavity includes soy milk or nutritional paste, and the heating assembly performing dry burning on the processing cavity includes heating and drying the residual soy milk or nutritional paste in the processing cavity.

[0012] Optionally, the heating assembly performs dry burning on the processing cavity before the liquid supply assembly first adds cleaning liquid into the processing cavity, and when the dry burning time of the heating assembly reaches a preset dry burning maintenance time, the cleaning stage is entered.

[0013] Optionally, the cleaning stage comprises at least a first cleaning stage and a second cleaning stage.

[0014] The heating assembly performs dry burning on the processing cavity between the first cleaning stage when the cleaning liquid in the processing cavity is emptied and the second cleaning stage when the cleaning liquid enters the processing cavity.

[0015] When the dry burning time of the heating assembly reaches a preset dry burning maintenance time, the second cleaning stage is entered.

[0016] Optionally, the preset dry burning maintenance time is t0, 2min≤t0≤10min.

[0017] Optionally, the heating assembly performing dry burning on the processing cavity comprises:

[0018] The heating assembly is provided with at least a first heating power and a second heating power.

[0019] Optionally, the heating assembly being provided with at least a first heating power and a second heating power comprises:

[0020] According to the real-time temperature T of the heating assembly h Adjust the heating power of the heating assembly according to the preset temperature T0 of the heating assembly.

[0021] When T h The heating assembly is heated at the first heating power.

[0022] When T h The heating assembly is heated at least at the second heating power.

[0023] Wherein, the first heating power is greater than the second heating power.

[0024] Optionally, in the processing cavity heating stage, when the real-time temperature T of the heating assembly h The heating assembly enters an intermittent heating state when the real-time temperature T of the heating assembly is greater than the preset temperature T0 of the heating assembly.

[0025] Wherein, T0 satisfies: 90℃≤T0≤110℃.

[0026] Optionally, the heating assembly performing dry burning on the processing cavity comprises:

[0027] The liquid outlet of the processing cavity is in an open state.

[0028] Optionally, the capacity of the beverage is V1, the required capacity of the cleaning liquid in the single cleaning stage is V2, V1 and V2 satisfy: V2 = V1 / n, 5 ≤ n ≤ 15.

[0029] The beneficial effects of the embodiments of the present application can include:

[0030] 1. In the present application, the food processor includes a base with a motor, a processing cavity provided on the base, a liquid supply assembly for supplying water to the processing cavity, a liquid discharge assembly for discharging liquid in the processing cavity, and a heating assembly. The processing cavity is used to contain beverages, cleaning liquid, etc. The liquid discharge assembly can discharge the beverage after the beverage is made, or discharge the cleaning liquid after cleaning. The beverage can be soy milk, nutritional paste, fruit and vegetable juice, etc. The heating assembly is used to heat the processing cavity to assist in hot beverage making and / or to achieve dry burning, or to keep the beverage warm. After the beverage is made, the liquid discharge assembly empties the beverage in the processing cavity to clean the processing cavity and avoid beverage waste due to residue in the processing cavity.

[0031] Meanwhile, after the liquid discharge assembly empties the beverage in the processing cavity, the cleaning control method includes the following steps: maintaining the processing cavity in an empty state; under the condition that the processing cavity is in the empty state, the heating assembly performs dry burning on the processing cavity; and after dry burning is completed, at least one cleaning stage is provided, which includes the liquid supply assembly adding cleaning liquid to the processing cavity, and the motor rotating and driving the cleaning liquid to flush and clean the inner wall of the processing cavity. The more residual liquid in the processing cavity, the longer the subsequent dry burning time, resulting in waste of energy. In order to shorten the dry burning time as much as possible, and thus shorten the overall cleaning time of the processing cavity, the step of maintaining the processing cavity in an empty state is provided after the liquid discharge assembly empties the beverage in the processing cavity. By providing the heating assembly to perform dry burning on the processing cavity under the condition that the processing cavity is in the empty state, the beverage residue remaining on the inner wall of the processing cavity rapidly clumps and falls off with dry burning. Then, through the cleaning stage after dry burning, the beverage residue in the processing cavity is flushed, and the beverage residue that has not fallen off in dry burning slides down under the impact of the water flow. Specifically, the cleaning stage includes the liquid supply assembly adding cleaning liquid to the processing cavity, and the motor rotating and driving the cleaning liquid to flush and clean the inner wall of the processing cavity, so as to ensure that there is no beverage residue remaining on the inner wall of the processing cavity, and to improve the cleaning effect of the processing cavity.

[0032] 2. It is well known that soybean or rice materials have strong viscosity when they are made into soybean milk, nutritional paste and other drinks. After the drinks are made, the processing cavity will be quickly cooled, causing the drink residues to stick to the inner wall of the processing cavity. The existing impact force of water flow cannot clean the drink residues on the inner wall of the processing cavity. Therefore, for the soybean milk or nutritional paste with strong viscosity, a heating assembly is arranged to dry burn the processing cavity, including heating and drying the residual soybean milk or nutritional paste in the processing cavity. The residual soybean milk or nutritional paste is quickly dried by the heating assembly, so that the residual soybean milk or nutritional paste is burned, agglomerated and falls off, which helps to further clean the processing cavity in the subsequent cleaning stage.

[0033] 3. In order to simplify the cleaning steps, the heating assembly is arranged to dry burn the processing cavity before the liquid supply assembly first adds cleaning liquid to the processing cavity, that is, after the drinks are emptied, the dry burning is entered, and the cleaning is performed after the dry burning is completed. At the same time, by setting that when the dry burning time of the heating assembly reaches the preset dry burning maintenance time, the cleaning stage is entered, so that at least most of the drink residues are agglomerated and fall off from the processing cavity during the dry burning process, and then the cleaning stage is entered, so as to improve the efficiency of the drink residues falling off from the inner wall of the processing cavity, and then improve the cleaning effect. When the dry burning time is shorter than the preset dry burning maintenance time, the dry burning can only make the drink residues fall off from the inner wall of the processing cavity, thereby affecting the cleaning effect; when the dry burning time is longer than the preset dry burning maintenance time, not only the energy is wasted, but also the drink residues are easily burned, and the existence of the charred substances makes the processing cavity more difficult to clean.

[0034] 4. By setting that the cleaning stage at least includes a first cleaning stage and a second cleaning stage, the cleaning effect is improved by multiple cleaning. By setting that the heating assembly dry burns the processing cavity between the cleaning liquid in the first cleaning stage is emptied from the processing cavity and the cleaning liquid in the second cleaning stage enters the processing cavity, the processing cavity after the drinks are emptied is cleaned in the first cleaning stage, so that the drink residues that are easy to fall off from the processing cavity are discharged. The cleaning in the first cleaning stage is also emptied from the processing cavity, which provides a processing cavity in an empty state for the dry burning, which helps to improve the dry burning efficiency and accelerate the dry burning and falling off of the drink residues in the first cleaning stage. It can be understood that when the dry burning time of the heating assembly reaches the preset dry burning maintenance time, the second cleaning stage is entered, which is equivalent to entering the second cleaning stage after the dry burning is completed. The cleaning liquid enters the processing cavity to further flush the processing cavity after the dry burning, thereby further improving the cleaning effect of the processing cavity.

[0035] 5. In order to ensure that the dry burning can fall off most of the beverage residue from the inner wall of the processing cavity, the preset dry burning maintenance time is set to t0, 2min≤t0≤10min. When the preset dry burning maintenance time is less than 2min, the dry burning cannot dry and quickly fall off the beverage residue; when the preset dry burning maintenance time is greater than 10min, the processing cavity is in high temperature for a long time, which is easy to cause the beverage residue to be burned, and the burned residue is more likely to be attached to the processing cavity, thereby causing the processing cavity to be more difficult to clean.

[0036] 6. Generally, if the heating assembly always maintains a high heating power, due to the thermal inertia of the heating assembly, it is easy to cause the heating later period to exceed the fusing temperature of the heating assembly, the food processor appears dry burning protection, and the processing procedure is interrupted; if the heating assembly always maintains a low heating power, the dry burning time will be prolonged. Therefore, the heating assembly is provided with at least a first heating power and a second heating power, so that different heating powers can be realized at different periods in the dry burning process, thereby avoiding the dry burning protection of the adaptive food processor, shortening the dry burning time, and improving the user experience.

[0037] 7. In order to distinguish different periods of the dry burning process, the preset temperature T0 of the heating assembly is used as a judgment standard, and when T h is less than or equal to T0, the heating assembly is heated at a first heating power; when T h is greater than T0, the heating assembly is heated at least at a second heating power. When T h is less than or equal to T0, the moisture in the beverage residue and the residual moisture on the inner wall of the processing cavity do not reach the boiling point, at this time, a relatively large first heating power is adopted to promote the aforementioned moisture to quickly reach the boiling point, thereby shortening the overall dry burning time. When T h is greater than T0, the moisture begins to evaporate, and the temperature in the processing cavity continues to rise, which is close to the fusing temperature, so at this time, a relatively small second heating power is needed to relatively prolong the time for drying the beverage residue, so that the beverage residue can fall off from the processing cavity. In an embodiment of the present application, in order to prevent the food processor from interrupting the processing step due to dry burning protection, after the real-time temperature T h of the heating assembly is greater than the preset temperature T0 of the heating assembly, the heating assembly enters an intermittent heating state. At the same time, due to the actual detection of T0 temperature having a certain deviation, and the boiling point of the moisture is usually around 100℃, but due to the influence of altitude, environment and other factors, the boiling point of the moisture will also change. Therefore, in order to ensure the accuracy of T0 and T h when compared, and to determine a reasonable processing power and improve the dry burning effect, T0 is set to satisfy: 90℃≤T0≤110℃.

[0038] 8. In the dry burning, the hot air flow is from bottom to top, one is to make the hot air flow quickly into the processing cavity, improve the dry burning efficiency; two is to dry burn the beverage residue at the liquid discharge port, and the liquid discharge port of the processing cavity is in an open state. At the same time, the liquid discharge port is in an open state, which is helpful for the beverage residue falling off from the inner wall of the processing cavity to be directly discharged from the liquid discharge port during the dry burning process.

[0039] 9. Because the capacity of the prepared beverage is different, the corresponding preparation time and the beverage residue remaining in the processing cavity after the beverage is discharged are different, and the adhesion of the beverage residue is also different. Therefore, in order to adapt to the capacity V1 of different beverages, the corresponding cleaning liquid capacity V2 is set to improve the cleaning effect, and V1 and V2 satisfy: V2=V1 / n, 5≤n≤15. BRIEF DESCRIPTION OF DRAWINGS

[0040] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0041] Figure 1 is a flow chart of the cleaning control method of the present application.

[0042] Figure 2 is a flow chart of the present application setting dry burning between the first cleaning stage and the second cleaning stage.

[0043] Figure 3 is a flow chart of the present application setting dry burning between the beverage discharge assembly discharging the beverage in the processing cavity and the first cleaning stage.

[0044] Figure 4 is a flow chart of the present application setting multiple dry burnings in the cleaning control method.

[0045] Figure 5 is a flow chart of the present application setting the first cleaning stage and the second cleaning stage after dry burning.

[0046] Figure 6 is a flow chart of how to set the heating power in the cleaning control method of the present application. DETAILED DESCRIPTION

[0047] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings, and the same reference numerals in the drawings represent the same or similar parts having the same function.

[0048] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be recognized by one skilled in the art that the present application can be practiced without the specific details and, therefore, the scope of the present application is not limited to the details disclosed herein.

[0049] The steps shown in the flowcharts of the drawings can be performed in a computer system such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be performed in an order different from that shown here.

[0050] Embodiment One

[0051] The embodiment of the present application provides a cleaning control method of a food processor, as shown in the figure, the food processor comprises a base with a motor, a processing cavity arranged on the base, a liquid supply assembly for supplying water to the processing cavity, a liquid discharge assembly for discharging liquid in the processing cavity, a heating assembly, and a main control unit. Specifically, the processing cavity is provided with a crushing device in transmission connection with the output shaft of the motor, and the crushing device can be a crushing knife, a grinding knife, etc. The motor drives the crushing device to rotate to crush the material in the processing cavity to prepare a corresponding beverage. The processing cavity is used to contain beverages, cleaning liquids, etc.; the liquid discharge assembly can discharge the beverage after the beverage is prepared, or discharge the cleaning liquid after cleaning, and the beverage can be soy milk, nutritional paste, fruit and vegetable juice, etc.; the heating assembly is used to heat the processing cavity to help hot beverage preparation and / or realize dry burning, or to keep the beverage warm; the main control unit is used to control each cleaning step. After the beverage is prepared, the liquid discharge assembly empties the beverage in the processing cavity to clean the processing cavity to avoid beverage waste caused by beverage remaining in the processing cavity. Figures 1 to 2

[0052] After the liquid discharge assembly empties the beverage in the processing cavity, the cleaning control method comprises the following steps:

[0053] S100: keep the processing cavity in an empty state;

[0054] S200: dry burning of the processing cavity by the heating assembly when the processing cavity is in the empty state;

[0055] S300: at least one cleaning stage is provided after dry burning is completed, and the cleaning stage comprises adding cleaning liquid into the processing cavity by the liquid supply assembly, rotating the motor to drive the cleaning liquid to flush and clean the inner wall of the processing cavity.

[0056] ​Since the more residual liquid in the processing cavity, the longer the subsequent dry burning time will be, causing waste of energy. In order to shorten the dry burning time as much as possible, and thus shorten the overall cleaning time of the processing cavity, after the beverage in the processing cavity is emptied, a step of keeping the processing cavity in an empty state is arranged. By arranging that when the processing cavity is in an empty state, the main control unit controls the heating assembly to dry burn the processing cavity, so that the beverage residues remaining on the inner wall of the processing cavity are quickly clumped and fall off with the dry burning. Then through the cleaning stage after the dry burning is completed, firstly, the beverage residues in the processing cavity are flushed, and secondly, the beverage residues that have not fallen off in the dry burning slide under the impact of the water flow. Specifically, the cleaning stage includes the main control unit controlling the liquid supply assembly to add cleaning liquid to the processing cavity, and rotating the motor to drive the cleaning liquid to flush and clean the inner wall of the processing cavity, so as to ensure that there is no beverage residue remaining on the inner wall of the processing cavity, thereby improving the cleaning effect of the processing cavity. In addition, at least one cleaning stage is arranged after the dry burning is completed, that is, the cleaning effect of the processing cavity can be improved through one or more cleaning stages.

[0057] It can be understood that the processing cavity in an empty state means that at this time the liquid outlet of the liquid discharge assembly of the processing cavity has no continuous beverage dripping out. Keeping the processing cavity in an empty state can at least be the state of the processing cavity from when the beverage is not continuously dripping to when the cleaning water is added to the processing cavity; or the state of the processing cavity from when there is no beverage dripping to when the cleaning water is added to the processing cavity.

[0058] The processing cavity is provided with a liquid outlet, and the liquid discharge assembly includes a liquid discharge valve for opening or closing the liquid outlet, and a liquid discharge channel for guiding liquid out to a beverage container. Usually, during the process of making beverages, the liquid outlet of the processing cavity is blocked by the liquid discharge assembly to prevent the beverage from dripping out of the liquid outlet. After the beverage is made, the liquid discharge valve is rotated to open the liquid outlet, so that the beverage in the processing cavity is discharged from the liquid outlet to the beverage container along the liquid discharge channel.

[0059] Further, since the hot air flow in the dry burning is from bottom to top, in order to enable the hot air flow to quickly enter the processing cavity to improve the dry burning efficiency, and to dry burn the beverage residues at the liquid outlet, the liquid outlet of the processing cavity is in an open state when the heating assembly is arranged to dry burn the processing cavity. The open state of the liquid outlet helps the beverage residues falling off from the inner wall of the processing cavity to be directly discharged from the liquid outlet during the dry burning process.

[0060] Further, the beverage in the embodiment includes hot beverage and cold beverage. The hot beverage includes soybean milk, nutritional paste, corn juice, etc. The cold beverage includes fruit and vegetable juice, cold brew tea, etc. Specifically, when the bean or rice material is made into soybean milk, nutritional paste, etc., the beverage has strong viscosity. After the beverage is made, the processing cavity is quickly cooled, which causes the beverage residue to stick to the inner wall of the processing cavity. The existing impact force of water flow cannot clean the beverage residue on the inner wall of the processing cavity. Therefore, for the hot beverage such as soybean milk or nutritional paste with strong viscosity, a heating assembly is arranged to dry burn the processing cavity, including heating and drying the residual soybean milk or nutritional paste in the processing cavity. The residual soybean milk or nutritional paste is quickly dried by the heating assembly, so that the residual soybean milk or nutritional paste is burned, agglomerated and falls off, which helps to further clean the processing cavity in the subsequent cleaning stage. At the same time, the dry and clean processing cavity avoids the residue of bacteria and stains, and is more hygienic and safe.

[0061] It can be understood that when the cold beverage such as fruit and vegetable juice and cold brew tea is prepared, the inner wall of the processing cavity will also have residual residues such as fruit residue, vegetable residue and tea residue after the cold beverage is emptied from the processing cavity. Although the residue of the cold beverage material has less viscosity than the bean or rice material, the dry burning is added before the cleaning stage in the cleaning method of the cold beverage, so as to further improve the cleaning effect of the processing cavity.

[0062] In the cleaning stage, the main control unit controls the liquid supply assembly to adjust the cleaning liquid capacity required in the cleaning stage according to the capacity of the beverage prepared. Since the capacity of the beverage prepared is different, the corresponding preparation time and the residual beverage residue in the processing cavity after the beverage is emptied are different, and the adhesion of the beverage residue is also different. Specifically, the capacity of the beverage is set as V1, and the cleaning liquid capacity required in the cleaning stage is set as V2. In order to adapt to different capacities V1 of the beverage and improve the cleaning effect and reduce the cleaning water volume, V1 and V2 are set to satisfy V2=V1 / n, 5≤n≤15. Preferably, n is 5, 10 or 15.

[0063] After the cleaning liquid is injected, the main control unit controls the motor to work at a preset speed S for N seconds. The set motor speed S=S0*(V 制 / V0), wherein V0 is the rated capacity of the cavity, and S0 is the rated speed of the motor. The motor working time N and the motor working time N1 under the condition of the rated capacity of the beverage prepared by the processing cavity satisfy N=N0*(V 制 / V0), and N1 is preferably 30 seconds. The rotation of the motor drives the rotation of the cleaning liquid, and then scours and hits the inner wall of the processing cavity, so as to accelerate the scraping of the beverage residue which does not fall off from the inner wall.

[0064] It can be understood that after the cleaning stage is completed, the main control unit needs to control the drain valve to open the drain port of the processing cavity to drain the waste cleaning liquid. The main control unit also controls the motor to continuously stir the waste cleaning liquid at a low speed S1 to fully homogenize and drain the waste cleaning liquid. Preferably, the motor speed S1 is less than or equal to 3000 rpm.

[0065] Generally, if the heating assembly always maintains a high heating power, due to the thermal inertia of the heating assembly, it is easy to cause the heating to exceed the fuse temperature of the heating assembly in the later stage, the food processor appears dry burning protection, and the processing process is interrupted; if the heating assembly always maintains a low heating power, the dry burning time will be prolonged. Therefore, in the step of "dry burning of the heating assembly to the processing cavity in the emptying state", the heating assembly is provided with at least a first heating power and a second heating power. The setting of the first heating power and the second heating power can realize different heating powers in different periods of the dry burning process, thereby avoiding the dry burning protection of the food processor, shortening the dry burning time, and improving the user experience.

[0066] In order to distinguish different periods of the dry burning process, the preset temperature T0 of the heating assembly is used as a judgment standard, and when T h is less than or equal to T0, the heating assembly heats at a first heating power; when T h is greater than T0, the heating assembly heats at least at a second heating power.

[0067] When T h is less than or equal to T0, the water in the beverage residue and the residual water on the inner wall of the processing cavity do not reach the boiling point, at this time a relatively large first heating power is adopted to promote the aforementioned water to quickly reach the boiling point, thereby shortening the overall dry burning time. When T h is greater than T0, the water begins to evaporate, the temperature in the processing cavity continues to rise, and is closer and closer to the fuse temperature, so a relatively small second heating power is needed at this time to relatively prolong the time for drying the beverage residue, so that the beverage residue can fall off from the processing cavity. In an embodiment of the present application, in order to prevent the food processor from interrupting the processing step due to dry burning protection, after the real-time temperature T h of the heating assembly is greater than the preset temperature T0 of the heating assembly, the heating assembly enters an intermittent heating state. At the same time, since there is a certain deviation in the actual detection of T0 temperature, and the boiling point of water is usually around 100°C, but due to the influence of factors such as altitude and environment, the boiling point of water can also change. Therefore, in order to ensure the accuracy of T0 and T h when compared, and to determine a reasonable processing power and improve the dry burning effect, T0 is set to satisfy: 90℃≤T0≤110℃. Preferably, T0 is 100℃.

[0068] Embodiment Two

[0069] On the basis of Embodiment One, with reference to Figure 3 and Figure 6 , the cleaning control method further comprises: after the food processor enters the cleaning mode, an identification step of identifying whether the prepared beverage is a hot beverage is further provided. That is, this embodiment distinguishes between hot beverages and cold beverages, and especially when it is a cold beverage, the residue does not strongly adhere to the processing cavity, so that the dry burning is not needed to meet the cleaning requirements of most users for the processing cavity; when it is a hot beverage, the residue strongly adheres to the processing cavity, so that the step of “maintaining the processing cavity in an empty state; under the condition that the processing cavity is in the empty state, the heating assembly performs dry burning on the processing cavity” is added before the cleaning stage. In this way, the treatment is given according to the symptoms by identifying whether it is a hot beverage, which can save cleaning liquid and cleaning time, and ensure that the cleaning cleanliness of the processing cavity after processing various beverages is strong.

[0070] Specifically, the identification step of identifying whether the prepared beverage is a hot beverage comprises: when it is identified that the prepared beverage is a non-hot beverage, the main control unit controls the food processor to enter a set cleaning process, that is, the step of the heating assembly performing dry burning on the processing cavity before the cleaning stage in the cleaning process is not provided.

[0071] When it is identified that the prepared beverage is a hot beverage, the main control unit controls the food processor to enter the cleaning stage. The cleaning stage comprises adjusting the cold water cleaning water amount according to the beverage amount, that is, the main control unit controls the liquid supply assembly to adjust the cleaning liquid capacity required in the cleaning stage according to the capacity of the prepared beverage. The cleaning stage is equivalent to the first cleaning stage in Figure 3 . The cleaning stage further comprises setting the motor speed S and the working time N according to the beverage amount after the cleaning water is added, that is, the main control unit S=S0*(V 制 / V0), N=N1*(V 制 / V0). Since it is consistent with Embodiment One, it will not be described here.

[0072] With reference to Figure 6 , in this embodiment, the step of “under the condition that the processing cavity is in the empty state, the heating assembly performs dry burning on the processing cavity” comprises a plurality of dry burning time periods with different heating powers. When the dry burning step is entered, first, the relationship between the temperature value T Q of the cavity temperature sensor and the preset temperature T0 of the heating assembly is judged. The first dry burning time period comprises: when T Q , the heating assembly performs dry burning at a first heating power; when T0≥ T0, the main control unit controls the motor to work at a speed S1 for N1 seconds and stop for N2 seconds. Preferably, the motor speed S1 is less than or equal to 3000 revolutions per minute, and N1 and N2 are preferably 30 seconds. Since the processing cavity gradually dries during the dry burning process, the motor shaft and the shaft seal are in a dry grinding state, the main control unit controls the motor to work at a low speed S1 to avoid the shaft seal being damaged and the sealing performance being reduced due to long-time dry grinding of the motor shaft and the shaft seal. In this way, the dry burning progress can be accelerated while ensuring the reliability of the shaft seal, thereby prolonging the service life of the food processor and improving the user experience. When T Q ≥ T0, the main control unit controls the motor to work at a speed S1 for N1 seconds and stop for N2 seconds. Preferably, the motor speed S1 is less than or equal to 3000 revolutions per minute, and N1 and N2 are preferably 30 seconds. Since the processing cavity gradually dries during the dry burning process, the motor shaft and the shaft seal are in a dry grinding state, the main control unit controls the motor to work at a low speed S1 to avoid the shaft seal being damaged and the sealing performance being reduced due to long-time dry grinding of the motor shaft and the shaft seal. In this way, the dry burning progress can be accelerated while ensuring the reliability of the shaft seal, thereby prolonging the service life of the food processor and improving the user experience. When T h is greater than or equal to the preset temperature T0 of the heating assembly, if T h ≤ T0, the main control unit controls the heating assembly to heat at the rated power P0, which is the first heating power in the first embodiment.

[0073] Further, the second dry burning time period includes: when T b -△T≥T h >T0, the main control unit adjusts the actual heating power according to the rated power P0 of the heating assembly. Under this condition, if P0≥1000W, the main control unit adjusts the actual heating power to 1 / 3P0; if 500W b is the dry burning protection temperature (i.e. the melting temperature) of the heating assembly, and △T is the difference of the protection temperature of the heating assembly, which is preferably 20℃.

[0074] The third dry burning time period includes: when T b -△T≤T h <T b -△T1, the main control unit controls the heating assembly to enter an intermittent heating state, i.e. to set the heating assembly to heat for W r seconds and stop for W t seconds. In this process, it is necessary to ensure that T Q ≥ T0, and at the same time, the heating time t of the heating assembly needs to satisfy: t≥t0. Wherein, t0 is the preset dry burning maintenance time. Therefore, (△T-△T1) / △Q≥t0→△Q≤(△T-△T1) / t0, wherein, △Q is the temperature rise rate of the heating tube, and △T1 is the difference of the protection temperature of the heating tube, which is preferably 10℃. Specifically, when △Q is large, the main control unit reduces the heating time W r of the heating assembly, or increases the value of W t to ensure the dry burning time requirement.

[0075] The fourth dry burning time period includes: when T b- AT1 < T h When T h ≤ T b - AT1 < T

[0076] Specifically, in a preferred embodiment, in order to ensure that the dry burning can make most of the beverage residues fall off from the inner wall of the processing cavity, the preset dry burning maintenance time t0 is set to 2min≤t0≤10min. When the preset dry burning maintenance time is less than 2min, the dry burning cannot dry and quickly fall off the beverage residues; when the preset dry burning maintenance time is greater than 10min, the processing cavity is in a high temperature for a long time, which can easily cause the beverage residues to be burnt, and the burnt residues are more likely to be attached to the processing cavity, thereby causing the processing cavity to be more difficult to clean. Preferably, t0 is 3min, 4min, 5min or 6min.

[0077] Example Three

[0078] On the basis of Example One, referring to Figure 2 , the cleaning stage is set to include at least a first cleaning stage and a second cleaning stage to improve the cleaning effect through multiple cleaning. The heating assembly is also set to dry burn the processing cavity after the cleaning liquid in the first cleaning stage is emptied from the processing cavity and before the cleaning liquid in the second cleaning stage enters the processing cavity, so that the first cleaning stage cleans the processing cavity after the beverage is emptied, to remove the beverage residues that are easy to fall off from the processing cavity. The cleaning of the first cleaning stage is also emptied from the processing cavity, which provides a processing cavity in an empty state for the dry burning, and helps to improve the dry burning efficiency and accelerate the dry burning and falling off of the beverage residues in the first cleaning stage.

[0079] When the dry burning time of the heating assembly reaches the preset dry burning maintenance time, the second cleaning stage is entered, which is equivalent to entering the second cleaning stage after the dry burning is completed. In this way, in the second cleaning stage, the cleaning liquid enters the processing cavity to further flush the processing cavity after the dry burning, thereby further improving the cleaning effect of the processing cavity.

[0080] It can be understood that the dry burning step in this embodiment is the same as that in Example One, but the dry burning step in this embodiment can be replaced by the dry burning scheme described in Example Two.

[0081] Example Four

[0082] On the basis of Example Three, referring to Figure 4The cleaning control method comprises: setting a first "dry burning of the processing cavity by the heating assembly" before the cleaning stage; and setting a second "dry burning of the processing cavity by the heating assembly" between the first cleaning stage and the second cleaning stage. The dry burning + cleaning stage is used to improve the cleaning degree of the processing cavity. In particular, when the hot beverage exceeds half of the rated capacity, the beverage residue is heavily adhered to the inner wall of the processing cavity, and single dry burning may not completely clean the beverage residue on the inner wall of the processing cavity. At this time, multiple dry burning + cleaning stages are needed to assist the cleaning of the processing cavity.

[0083] Embodiment five

[0084] In order to simplify the cleaning steps, on the basis of embodiment one, the dry burning of the processing cavity by the heating assembly is set before the liquid supply assembly first adds cleaning liquid into the processing cavity, that is, after the beverage is emptied, dry burning is performed, and cleaning is performed after the dry burning is completed. That is, the cleaning control method of the embodiment comprises: setting the "dry burning of the processing cavity by the heating assembly" between the emptying of the beverage in the processing cavity by the liquid emptying assembly and the first cleaning stage.

[0085] At the same time, when the dry burning time of the heating assembly reaches the preset dry burning maintenance time, the cleaning stage is entered, so that when at least most of the beverage residue is lightly agglomerated and falls off from the processing cavity during the dry burning process, the first cleaning stage is entered, so as to improve the efficiency of falling off the beverage residue from the inner wall of the processing cavity, and then improve the cleaning effect. When the dry burning time is shorter than the preset dry burning maintenance time, the dry burning can only make the beverage residue fall off from the inner wall of the processing cavity, thereby affecting the cleaning effect; when the dry burning time is longer than the preset dry burning maintenance time, not only energy is wasted, but also the beverage residue is easily burned, and the existence of the charred matter makes the processing cavity more difficult to clean.

[0086] Embodiment six

[0087] On the basis of embodiment five, referring to Figure 5 The cleaning control method comprises: setting the dry burning between the emptying of the beverage in the processing cavity by the liquid emptying assembly and the first cleaning stage, opening the liquid outlet of the processing cavity to empty the cleaning liquid in the processing cavity after the first cleaning stage, and then entering the second cleaning stage, and opening the liquid outlet of the processing cavity to empty the cleaning liquid in the processing cavity after the second cleaning stage ends. Among them, the dry burning is the dry burning of the processing cavity by the heating assembly. In this embodiment, the processing cavity with the fallen beverage residue is fully cleaned by implementing multiple cleaning stages after dry burning, so as to improve the cleanliness of the processing cavity.

[0088] It can be understood that the dry burning step in the embodiment is the same as that in the first embodiment, but the dry burning step in the embodiment can also be replaced by the dry burning scheme described in the second embodiment.

[0089] It can also be understood that the dry burning maintenance time described in the fourth embodiment to the sixth embodiment is the t0 value in the second embodiment, i.e., T Q After T≥T0, the heating assembly maintains heating for a time. Of course, in another embodiment, if the master control unit controls the heating assembly to stop heating when the temperature of the processing cavity reaches the set value through detection, the dry burning maintenance time refers to the time during which the heating assembly starts heating to stop heating.

[0090] So far, the technical solutions of the present disclosure have been described in combination with the foregoing embodiments, but those skilled in the art can easily understand that the protection scope of the present disclosure is not limited to these specific embodiments. Those skilled in the art can split and combine the technical solutions in the above-described embodiments, or make equivalent changes or replacements to related technical features, without departing from the technical principles of the present disclosure. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present disclosure shall fall within the protection scope of the present disclosure.

[0091] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment mainly describes the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.

[0092] The above is only an embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A method of controlling cleaning of a food processor, characterized by, The food processor comprises a base provided with a motor, a processing cavity provided on the base, a liquid supply assembly for supplying water to the processing cavity, a liquid discharge assembly for discharging liquid in the processing cavity, and a heating assembly. After the beverage is prepared, the liquid discharge assembly discharges the beverage in the processing cavity. After the liquid discharge assembly discharges the beverage in the processing cavity, the cleaning control method comprises the following steps: maintaining the processing cavity in the empty state; The heating assembly performs dry burning on the processing cavity when the processing cavity is in an empty state, and a temperature sensor temperature value T Q When the preset temperature T0 of the heating assembly satisfies: T Q When T0 is greater than or equal to T0, the motor is controlled to work at a rotating speed S1 for N1 seconds and stop for N2 seconds, wherein S1 is less than or equal to 3000 revolutions per minute. after the dry burning is completed, at least one cleaning stage is provided, and the cleaning stage comprises the following steps: the liquid supply assembly adds cleaning liquid to the processing cavity, the motor rotates and drives the cleaning liquid to flush and clean the inner wall of the processing cavity.

2. The cleaning control method of the food processor according to claim 1, characterized in that, The beverage in the processing cavity comprises soy milk or nutritional paste, and the heating assembly performs dry burning on the processing cavity, which comprises heating and drying the residual soy milk or nutritional paste in the processing cavity.

3. The cleaning control method of the food processor according to claim 1, characterized in that, The dry burning of the heating assembly on the processing cavity is performed before the liquid supply assembly first adds cleaning liquid to the processing cavity. When the dry burning time of the heating assembly reaches a preset dry burning maintenance time, the cleaning stage is entered.

4. The cleaning control method of the food processor according to claim 3, characterized in that The preset dry burning maintenance time is t0, and 2min≤t0≤10min.

5. The cleaning control method of the food processor according to claim 1, characterized by, The dry burning of the heating assembly on the processing cavity comprises: The heating assembly is provided with at least a first heating power and a second heating power.

6. The cleaning control method of the food processor according to claim 5, characterized in that, The heating assembly is provided with at least a first heating power and a second heating power, which comprises: According to the real-time temperature T of the heating assembly h Adjust the heating power of the heating assembly with the preset temperature T0 of the heating assembly; When T h when T0, the heating assembly heats at a first heating power; When T h greater than To, the heating assembly heats at least at a second heating power; The first heating power is greater than the second heating power.

7. The cleaning control method of the food processor according to claim 1 or 6, characterized in that, In the processing cavity heating stage, when the real-time temperature T h of the heating assembly is greater than the preset temperature T0 of the heating assembly, the heating assembly enters an intermittent heating state. T0 satisfies: 90℃≤T0≤110℃.

8. The cleaning control method of the food processor according to claim 1, characterized by, The dry burning of the heating assembly on the processing cavity comprises: The liquid discharge port of the processing cavity is in an open state.

9. The cleaning control method of the food processor according to claim 1, characterized by, The capacity of the beverage is V1, the required cleaning liquid capacity in a single cleaning stage is V2, and V1 and V2 satisfy: V2=V1 / n, 5≤n≤15.

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