A boiling judging method and device of a food processor

Abstract

The embodiment of the present application provides a boiling judging method and device of a food processor, the food processor comprises a food cup, a liquid detecting device and a anti-overflow container, a flow-through channel exists between the food cup and the anti-overflow container, during the heating work of the food processor, the slurry in the food cup can overflow to the anti-overflow container through the flow-through channel, the anti-overflow container is communicated with the outside through the air hole of the food processor, and the liquid detecting device is arranged in the anti-overflow container; the method comprises the following steps: controlling the food processor to perform the heating work; during the heating work of the food processor, controlling the liquid detecting device to detect whether there is liquid in the anti-overflow container; and according to the detection result of the liquid detecting device, judging whether the slurry in the food cup is boiled. The method can quickly detect whether the slurry in the food processor is boiled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to a boiling judgment method and device of a food processor. BACKGROUND

[0002] In the process of using a food processor to make pulp, the temperature of the pulp is usually collected by a temperature sensor at the bottom of the food processor, and the slope of the temperature rise is calculated to determine whether the pulp is boiling. When the slope is less than a set threshold, it is determined to be boiling. However, using a temperature sensor to determine boiling requires collecting a large number of temperature points for calculating the temperature change slope, which takes a long time to determine boiling, and the temperature sensor requires high accuracy for collecting temperature, which makes the equipment cost too high. In addition, in the case of abnormal temperature sensor that fails to determine boiling in time, there is a risk of pulp overflow. SUMMARY

[0003] Therefore, the embodiments of the present application provide at least one boiling judgment method and device of a food processor.

[0004] Specifically, the embodiments of the present application are implemented by the following technical solutions:

[0005] In a first aspect, a boiling judgment method of a food processor is provided, the food processor comprising a food cup, a liquid detection device, and an anti-overflow container, a flow-through channel being present between the food cup and the anti-overflow container, during heating operation of the food processor, pulp in the food cup can overflow to the anti-overflow container through the flow-through channel, the anti-overflow container is in communication with the outside through a gas permeable hole of the food processor, and the liquid detection device is arranged in the anti-overflow container; the method comprises:

[0006] controlling the food processor to perform heating operation;

[0007] controlling the liquid detection device to detect whether there is liquid in the anti-overflow container during the heating operation of the food processor;

[0008] judging whether the pulp in the food cup is boiling according to the detection result of the liquid detection device.

[0009] The boiling judgment method of the cooking machine provided by the technical scheme of the first aspect sets the liquid detection device in the anti-overflow container of the cooking machine, and a flow-through channel exists between the cooking cup and the anti-overflow container, so that the slurry in the cooking cup can enter the anti-overflow container through the flow-through channel when the slurry boils, thereby realizing the judgment of whether the liquid boils by detecting whether there is liquid in the anti-overflow container. On the one hand, the method does not need to collect multiple temperature points for a long time, but can realize boiling judgment by real-time detection of the presence of liquid by the liquid detection device, so that the boiling judgment time is shorter, the slurry preparation time can be shortened to save power consumption; on the other hand, the setting of the anti-overflow container can prevent the slurry from overflowing even if abnormal detection occurs, and the reliability is high; on the other hand, the use of a high-precision temperature sensor is not needed, thereby reducing the equipment cost.

[0010] In some optional embodiments, the judging whether the slurry in the cooking cup boils according to the detection result of the liquid detection device comprises:

[0011] In response to the detection of the liquid detection device that there is liquid in the anti-overflow container, it is determined that the slurry in the cooking cup has boiled.

[0012] As long as the presence of liquid is detected, it can be determined that the slurry has boiled, the step is simple, and the boiling can be quickly judged.

[0013] In some optional embodiments, during the heating work of the cooking machine, the cooking machine alternately performs heating work and stops heating, during the heating work of the cooking machine, the slurry in the cooking cup can overflow to the anti-overflow container through the flow-through channel, and during the stop of the heating of the cooking machine, the slurry overflowing to the anti-overflow container flows back to the cooking cup through the flow-through channel; the controlling the liquid detection device to detect whether there is liquid in the anti-overflow container during the heating work of the cooking machine comprises:

[0014] controlling the liquid detection device to detect whether there is liquid in the anti-overflow container during the heating work of the cooking machine;

[0015] if it is detected that there is liquid, controlling the cooking machine to stop heating;

[0016] if the liquid detection device detects that there is no liquid in the anti-overflow container during the stop of the heating of the cooking machine, controlling the cooking machine to perform the heating work again;

[0017] controlling the liquid detection device to detect whether there is liquid in the anti-overflow container again during the heating work of the cooking machine again, and if it is detected that there is liquid, obtaining the detection result of the liquid detection device.

[0018] When it is detected that there is liquid in the anti-overflow container, the control of the food processor stops heating, so that the air pressure in the food cup is reduced, and under the action of the siphon effect, the liquid in the anti-overflow container flows back to the food cup through the flow-through channel, and then during the re-heating work of the food processor, it is detected again whether there is liquid in the anti-overflow container, which can avoid the situation that the anti-overflow container of the food processor is judged to be boiling due to residual liquid when it is not completely emptied during cleaning, and further improves the boiling judgment accuracy.

[0019] In some optional embodiments, the method further comprises:

[0020] In response to the number of times that the liquid detection device detects that there is liquid in the anti-overflow container being equal to the preset number of times, it is determined that the slurry in the food cup has boiled.

[0021] When the slurry boils, the slurry can overflow to the anti-overflow container through the flow-through channel, and determining whether the slurry boils by comparing the number of times that the liquid detection device detects that there is liquid in the anti-overflow container with the preset number of times can reduce the probability of boiling error and improve the boiling accuracy.

[0022] In some optional embodiments, the method further comprises:

[0023] If the number of times that the liquid detection device detects that there is liquid in the anti-overflow container is less than the preset number of times, it is determined that the slurry in the food cup has not boiled, and the control of the food processor stops heating;

[0024] After the liquid detection device detects that there is no liquid in the anti-overflow container, the control of the food processor performs re-heating work, and the control of the liquid detection device detects whether there is liquid in the anti-overflow container. If liquid is detected, the detection result of the liquid detection device is obtained, and it is determined again whether the slurry in the food processor has boiled.

[0025] Through the repeated siphon effect, it is ensured that there is no residual liquid in the anti-overflow container before boiling, and the boiling accuracy is improved.

[0026] In some optional embodiments, the method further comprises:

[0027] Obtaining the detection value of the liquid detection device;

[0028] According to the detection value of the liquid detection device, it is determined whether the liquid detection device is short-circuited;

[0029] If the detection value is less than or equal to a preset threshold value, it is determined that the liquid detection device is short-circuited, and it is determined that there is liquid in the anti-overflow container.

[0030] If the detection value is greater than the preset threshold value, it is determined that the liquid detection device is not short-circuited, and the liquid detection device continues to detect whether there is liquid in the anti-overflow container.

[0031] When the probe contacts the liquid, it will be short-circuited, and at this time the detection value of the probe will become smaller. Whether the probe is short-circuited can be determined by comparing the detection value of the probe with the preset threshold value, so as to determine whether there is liquid in the anti-overflow container.

[0032] In some optional embodiments, after it is determined that the liquid detection device is not short-circuited, the liquid detection device continues to detect whether there is liquid in the anti-overflow container, including:

[0033] The detection value of the liquid detection device is continuously obtained, and whether the liquid detection device contacts foam within a continuous preset time period is determined according to the detection value of the liquid detection device.

[0034] If the liquid detection device contacts foam within a continuous preset time period, it is determined that there is liquid in the anti-overflow container.

[0035] When the slurry is boiling, a large amount of foam will be generated, and the overflow from the anti-overflow container may not be liquid but foam. In order to ensure that the slurry boiling is detected in time, when it is detected that there is no liquid in the anti-overflow container, the boiling can also be determined by detecting the foam.

[0036] In some optional embodiments, the control of the food processor to perform heating work includes:

[0037] The food processor is controlled to perform heating work at a first power, and the first power is greater than a preset power threshold.

[0038] Using the first power greater than the preset power to heat makes the slurry in the food cup quickly warm up and speeds up the slurry making speed.

[0039] In some optional embodiments, the control of the food processor to perform heating work further includes:

[0040] During the control of the food processor to perform heating work at the first power, the food processor is controlled to perform stirring work.

[0041] During the quick-warming heating process, the stirring module in the food processor can also be controlled to stir, preventing the food material from sticking to the bottom during heating, so that the taste of the slurry is better.

[0042] In some optional embodiments, the controlling the liquid detection device to detect whether there is liquid in the anti-overflow container further comprises:

[0043] acquiring a temperature of the slurry in the cooking cup;

[0044] in response to the temperature of the slurry reaching a preset temperature value, controlling the food processor to perform heating work at a second power less than the first power.

[0045] After rapid heating, if the first power is continued to be used for heating, the slurry in the cooking cup may be over-boiled, resulting in a large amount of slurry overflowing, even out of the anti-overflow container. Therefore, after rapid heating, the second power less than the first power is used for heating, so as to slow down the temperature rising speed when approaching boiling, thereby avoiding overflow.

[0046] In some optional embodiments, the controlling the liquid detection device to detect whether there is liquid in the anti-overflow container comprises:

[0047] during the heating work of the food processor at the second power less than the first power, controlling the liquid detection device to detect whether there is liquid in the anti-overflow container.

[0048] When the second power less than the first power is used for heating, the temperature rising speed is slower when approaching boiling, which can more accurately determine boiling.

[0049] In some optional embodiments, the food processor further comprises a second liquid detection device, the second liquid detection device is arranged in the anti-overflow container, the position of the second liquid detection device is higher than the position of the liquid detection device, and the method further comprises:

[0050] in response to the second liquid detection device detecting that the liquid in the anti-overflow container has reached an upper limit of liquid, controlling the food processor to stop heating work.

[0051] The arrangement of the second liquid detection device can prevent the situation that there is too much slurry overflow and the capacity of the anti-overflow container is insufficient, further reducing the risk of slurry overflow.

[0052] In a second aspect, a food processor is provided, the food processor comprising a cooking cup, an anti-overflow container and a controller, there being a flow-through channel between the cooking cup and the anti-overflow container, during the heating work of the food processor, the slurry in the cooking cup can overflow to the anti-overflow chamber through the flow-through channel, the anti-overflow container is communicated with the outside through the air hole of the food processor, the liquid detection device is arranged in the anti-overflow container, the controller is in communication connection with the liquid detection device, and the controller is used to execute the boiling determination method of the food processor according to any one of the embodiments of the present application.

[0053] Thirdly, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the boiling determination method for a food processor according to any embodiment of the present invention. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in one or more embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a flowchart illustrating a boiling determination method for a food processor according to at least one embodiment of the present invention;

[0056] Figure 2 This is a flowchart illustrating another boiling determination method for a food processor, as shown in at least one embodiment of the present invention;

[0057] Figure 3 This is a schematic diagram of a controller circuit shown in at least one embodiment of the present invention;

[0058] Figure 4 This is a schematic diagram of a liquid detection device circuit shown in at least one embodiment of the present invention;

[0059] Figure 5 This is a schematic diagram illustrating a boiling point determination process according to at least one embodiment of the present invention;

[0060] Figure 6 This is an external view of a food processor shown in at least one embodiment of the present invention;

[0061] Figure 7 This is a cross-sectional view of a food processor shown in at least one embodiment of the present invention;

[0062] Figure 8 This is a structural diagram of a siphon cup lid shown in at least one embodiment of the present invention. Detailed Implementation

[0063] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0064] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0065] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0066] The food processor in this invention is an electrical appliance with a pulping function, such as a soy milk maker or a high-speed blender. The food processor may include a blending cup, a heating module, a controller, an overflow preventer, and a liquid detection device installed inside the overflow preventer. When the food processor also has a blending function, it may also include a blending module.

[0067] Among them, the food processor cup is a container used to hold ingredients to be processed. It can be the blending cup of a soy milk maker or a high-speed blender. For example, the food processor cup can hold beans, grains and water.

[0068] The mixing module is located in the food processor cup and can be a mixing blade, a mixer, a mixing paddle, or other module that has the function of mixing and pulverizing the contents of the food processor cup.

[0069] The heating module is a module that has the function of heating the contents of the blending cup, and it can be set at the bottom of the blending cup or other positions.

[0070] The overflow preventer can be installed on the food processor, for example, in the lid, inside the food processor cup, or outside the food processor wall. There is a flow channel between the food processor cup and the overflow preventer. This flow channel is a closed channel, with one end connected to the mouth of the food processor cup and the other end connected to the opening of the overflow preventer. The overflow preventer is connected to the outside through a vent on the food processor. During the heating process of the food processor, the liquid in the food processor cup can overflow into the overflow preventer through the flow channel. The overflow preventer is designed to achieve a siphon effect, thus preventing the liquid from overflowing. Specifically, since the overflow preventer is connected to the outside through the vent on the blender, the pressure in the overflow preventer can be considered to be the same as the external atmospheric pressure. When the liquid in the blender cup is heated and boils, the pressure inside the blender cup is greater than the pressure in the overflow preventer, and the liquid in the blender cup will flow from the flow channel into the overflow preventer. When the blender stops heating, the pressure in the overflow preventer is greater than the pressure in the blender cup. At this time, the liquid flowing into the overflow preventer cup can be siphoned into the blender cup through the flow channel under the action of the pressure difference.

[0071] In one example, the overflow container can be positioned above the highest level of the contents in the blending cup to create a greater liquid pressure difference between the two ends of the flow channel, allowing the liquid flowing into the overflow container to flow back to the blending cup more quickly under the influence of the greater pressure difference.

[0072] The controller can be a control chip, a control board, or a control circuit with control functions.

[0073] The liquid detection device can be a liquid level sensor or other sensor with liquid detection function. It is used to convert the static pressure of the liquid sensed by the probe into an electrical signal, thereby detecting the presence of liquid. The liquid detection device is installed inside the overflow prevention container.

[0074] The heating module, stirring module, and liquid detection device mentioned above are all connected to the controller.

[0075] like Figure 1 As shown, Figure 1 This is a flowchart illustrating a boiling determination method for a food processor according to at least one embodiment of the present invention. The method can be used in the controller of the aforementioned food processor and includes the following steps:

[0076] In step 100, the food processor is controlled to perform heating.

[0077] When making the slurry, a food processor is needed to heat the ingredients and water in the blender cup. As the food processor heats up, the pressure inside the blender increases, causing the slurry to expand. When the slurry boils, it flows from the blender cup into the overflow container through the flow-through tube between the overflow container and the blending cup. Therefore, this solution determines boiling by detecting the presence of liquid in the overflow container.

[0078] In this step, when controlling the food processor to heat up, you can control the heating device in the food processor to heat the liquid in the food processor cup. For example, you can control the heating plate at the bottom of the food processor cup to heat it, or you can control the heating rod in the food processor cup to heat it.

[0079] In step 102, during the heating process of the food processor, the liquid detection device is controlled to detect whether there is liquid in the overflow container.

[0080] This embodiment does not limit the way the liquid detection device is controlled to detect whether there is liquid in the overflow container. For example, the liquid detection device can be controlled to detect whether there is liquid in the overflow container in real time after the heating operation has started for a period of time, or the liquid detection device can be controlled to periodically detect whether there is liquid in the overflow container; or, the liquid detection device can be controlled to detect whether there is liquid in the overflow container when the temperature sensor at the bottom of the cooking cup detects that the temperature has reached a certain value.

[0081] In step 104, based on the detection result of the liquid detection device, it is determined whether the slurry in the cooking cup is boiling.

[0082] This embodiment does not impose any restrictions on how to determine boiling based on the detection results of the liquid detection device.

[0083] For example, in one instance, if the liquid detection device indicates that there is no liquid in the overflow container, it is determined that the slurry has not boiled, and the liquid detection device is continued to detect whether there is liquid in the overflow container.

[0084] In yet another example, when the detection result indicates that there is liquid in the overflow container, in response to the liquid detection device detecting the presence of liquid in the overflow container, it is determined that the slurry in the cooking cup has boiled.

[0085] For example, the boiling point can be determined the moment liquid is detected for the first time, a simple and quick process. Alternatively, boiling can be determined only after multiple detections of liquid in the overflow container, reducing the probability of incorrect boiling point determination, improving accuracy, and making the results more reliable.

[0086] For example, a preset number of times the overflow prevention container is detected to contain liquid can be pre-set. In response to the liquid detection device detecting liquid in the overflow prevention container a number equal to the preset number, it is determined that the slurry in the cooking cup has boiled. The preset number of times can be set by those skilled in the art or by the user as needed.

[0087] This method incorporates a liquid detection device within the overflow-proof container of the blender. A flow channel exists between the blending cup and the overflow-proof container, allowing boiling liquid in the blending cup to flow into the overflow-proof container. This enables the determination of boiling by detecting the presence of liquid in the overflow-proof container. This method offers several advantages: firstly, it eliminates the need for prolonged sampling of multiple temperature points, relying instead on the liquid detection device for faster boiling determination, thus shortening the blending time and saving power; secondly, the overflow-proof container prevents overflow even in cases of detection anomalies, ensuring high reliability; and thirdly, it reduces equipment costs by eliminating the need for a high-precision temperature sensor.

[0088] In one embodiment, controlling the food processor to perform heating operation includes: controlling the food processor to perform heating operation at a first power, wherein the first power is greater than a preset power threshold.

[0089] The preset power threshold is a relatively high heating power value. The first power is greater than the preset power threshold so that the liquid in the blending cup can be heated up quickly to speed up the blending process. For example, the first power can be the maximum heating power of the blender. The stage of heating with the first power can be called the heating stage. During this stage, it is not necessary to control the liquid detection device to detect whether there is liquid in the overflow container.

[0090] In one example, controlling the food processor to perform heating operations further includes:

[0091] While the food processor is controlled to heat at a first power, the food processor is also controlled to perform a stirring operation.

[0092] During the rapid heating process, the blending module in the food processor can be controlled to stir, preventing the ingredients from burning at the bottom and resulting in a better texture for the slurry. For example, stirring can be continuous or intermittent during heating. When heating at the highest power, the stirring time can be shorter than the heating time; for example, 30 seconds of full-power heating followed by 6 seconds of stirring.

[0093] In one example, before the liquid detection device detects whether liquid is present in the spill containment container, the method further includes:

[0094] The temperature of the slurry inside the cooking cup is obtained;

[0095] In response to the slurry temperature reaching a preset temperature value, the food processor is controlled to heat at a second power lower than the first power.

[0096] The preset temperature value is a value close to the boiling point, for example, it can be set to 87 degrees Celsius. After rapid heating, if the first power is used for heating, the liquid in the blender cup may overboil, causing a large amount of liquid to overflow, or even overflow the anti-overflow container. Therefore, in the boiling stage after rapid heating, a second power lower than the first power is used for heating, so that the rate of temperature rise is slowed down when approaching boiling, thus avoiding overflow.

[0097] In one example, controlling the liquid detection device to detect the presence of liquid in the spill containment container includes:

[0098] During the heating operation of the food processor at a second power less than the first power, the liquid detection device is controlled to detect whether there is liquid in the overflow container.

[0099] When heating with a second power lower than the first power, the temperature of the slurry rises more slowly when it is close to boiling. This avoids the problem of excessively rapid temperature rise causing a large amount of foam to be generated before boiling or the slurry to expand too quickly and overflow, which could lead to misjudgment. This allows for more accurate boiling point determination.

[0100] Although the overflow preventer can collect spilled liquid from the blender cup and reduce the risk of liquid overflowing the blender, there are still situations where excessive liquid overflow occurs and the overflow preventer's capacity is insufficient. To further reduce the risk of overflow, in one embodiment, the blender further includes a second liquid detection device disposed within the overflow preventer, with the second liquid detection device positioned higher than the liquid detection device. The method further includes:

[0101] In response to the second liquid detection device detecting that the liquid in the overflow container has reached the upper limit, the food processor is controlled to stop heating.

[0102] In this embodiment, two liquid detection devices can be installed in the overflow container. The liquid detection device used to detect the presence of the overflow container is called the first liquid detection device, and the liquid detection device used to detect whether the liquid in the overflow container has reached the upper limit is called the second liquid detection device. The position of the second liquid detection device is higher than that of the first liquid detection device.

[0103] The second liquid detection device can be set at the upper limit of the liquid in the overflow container. Specifically, the sensor in the second liquid detection device used to detect liquid can be set at the upper limit of the liquid. When the sensor of the second liquid detection device detects the presence of liquid, it means that the liquid in the overflow container has reached the upper limit. At this time, the food processor is controlled to stop heating to prevent the liquid in the food processor cup from continuing to enter the overflow container through the flow channel, which would cause the overflow container to overflow due to overfilling. This further reduces the risk of overflow. Even if the heating is stopped, it can effectively prevent overpressure in the food processor cup, shorten the pulping time, and improve power efficiency.

[0104] In other examples, a single liquid detection device can be used, with its sensor positioned at the upper limit of the liquid level in the overflow container. This device is used to detect both the presence of the overflow container and whether the liquid level in the overflow container has reached the upper limit, thus saving on equipment costs.

[0105] To avoid issues like residual liquid in the food processor's overflow container causing boiling point errors due to incomplete emptying during cleaning, and to further improve boiling point accuracy, such as... Figure 2 As shown in the figure, this embodiment of the invention also provides a method for determining boiling point in a food processor, including the following steps:

[0106] In step 200, the food processor is controlled to perform heating.

[0107] In this embodiment, the heating process of the food processor includes a heating phase and a heating stop phase. During the heating process, the food processor alternates between heating and stopping. During the heating process, the liquid in the food processor cup can overflow into the overflow prevention container through the flow channel. During the heating process, the liquid that overflowed into the overflow prevention container flows back into the food processor cup through the flow channel.

[0108] In step 202, during the heating operation of the food processor, the liquid detection device is controlled to detect whether there is liquid in the overflow container. If liquid is detected, the food processor is controlled to stop heating.

[0109] In this embodiment, while the food processor is heating, a liquid detection device can be controlled to detect whether there is liquid in the overflow container. This detection can be performed in real-time or periodically. When liquid is detected in the overflow container during heating, heating is stopped. At this point, two possibilities exist: the first detection of liquid in the overflow container could be residual liquid from cleaning or liquid overflowing when the slurry boils.

[0110] If no liquid is detected in the overflow prevention container, the food processor will continue heating.

[0111] Even after the food processor stops heating, the liquid detection device is still controlled to detect whether there is liquid in the overflow container.

[0112] In step 204, if the liquid detection device detects that there is no liquid left in the overflow container during the period when the food processor stops heating, it controls the food processor to start heating again.

[0113] After heating stops, the temperature inside the blending cup drops, and the liquid level drops as the liquid shrinks. Since the overflow container is connected to the outside through the vent on the food processor, the air pressure in the overflow container can be considered to be the external atmospheric pressure. The air pressure inside the blending cup will be lower than the air pressure in the overflow container. Under the action of the external atmospheric pressure, the liquid in the overflow container is forced back into the food processor through the pressure difference via the flowable tube.

[0114] When the liquid detection device detects that there is no liquid left in the overflow container, it means that the liquid in the overflow container has been siphoned into the blender cup. At this time, the blender continues to heat. For example, the sensor of the liquid detection device generates a detection value when it is in contact with liquid and when it is not in contact with liquid. The detection value can be compared with a preset standard detection value to determine whether there is liquid in the overflow container.

[0115] In step 206, during the reheating operation of the food processor, the liquid detection device is controlled to detect whether there is liquid in the overflow container again. If liquid is detected, the detection result of the liquid detection device is obtained.

[0116] During the reheating process of the food processor, the temperature of the liquid in the food processor cup rises, and the air pressure inside the food processor cup increases. Under the action of the siphon effect, the liquid in the food processor cup can overflow into the overflow prevention container through the flow channel when it boils. During this period, the liquid detection device controls the liquid detection device to detect whether there is liquid in the overflow prevention container. If liquid is detected, the detection result of the liquid detection device is obtained, and the detection result is the detection value of the liquid detection device.

[0117] In step 208, in response to the liquid detection device detecting that the number of times liquid is present in the overflow container is equal to a preset number, it is determined that the slurry in the cooking cup has boiled.

[0118] The previous siphon effect has drawn liquid from the overflow container into the blender cup. Detecting liquid in the overflow container again at this point confirms that it is liquid that overflowed when the slurry boiled. This embodiment does not limit the specific value of the preset number of times. For example, when the preset number of times is 2, when liquid is detected in the overflow container for the second time, there is only one possibility: the liquid in the overflow container is liquid that overflowed when the slurry boiled, and it can be accurately determined that the slurry has boiled. Before the second detection of liquid in the overflow container, the blender continues heating. This method only requires two detections of liquid in the overflow container to achieve accurate boiling determination.

[0119] Alternatively, the preset number of times can be set to a value greater than 2 to make the boiling point of the slurry more reliable.

[0120] In other examples, determining whether the slurry in the blending cup is boiling based on the detection results of the liquid detection device includes: if the number of times the liquid detection device detects liquid in the overflow container is less than the preset number, then it is determined that the slurry in the blending cup is not boiling, and the blender is controlled to stop heating; after the liquid detection device detects that there is no liquid in the overflow container, the blender is controlled to start heating again, and the liquid detection device is controlled to detect whether there is liquid in the overflow container. If liquid is detected, the detection result of the liquid detection device is obtained, and the slurry in the blender is determined again to be boiling.

[0121] When the number of times liquid is detected is less than the preset number, the above steps are repeated to repeatedly draw the liquid in the overflow container into the blender cup and the liquid in the blender cup into the overflow container through the siphon effect, and obtain the detection results of the liquid detection device to determine whether the liquid in the blender is boiling. The repeated siphon effect ensures that there is no residual liquid in the overflow container before boiling, thus improving the accuracy of boiling determination.

[0122] Based on any of the above embodiments, controlling the liquid detection device to detect whether there is liquid in the spill containment container includes:

[0123] Obtain the detection value from the liquid detection device;

[0124] Based on the detection value of the liquid detection device, determine whether the liquid detection device is short-circuited;

[0125] If the detected value is less than or equal to a preset threshold, it is determined that the liquid detection device is short-circuited, and it is determined that there is liquid in the overflow container;

[0126] If the detected value is greater than the preset threshold, it is determined that the liquid detection device is not short-circuited, and the liquid detection device continues to be controlled to detect whether there is liquid in the overflow container.

[0127] When a sensor in a liquid detection device detects the presence of liquid in an overflow container, it generates a detection value. Comparing this value with a preset threshold determines whether liquid is present in the container. For example, if the sensor in the liquid detection device is a probe, the output detection value will change when the probe comes into contact with liquid. An exemplary circuit diagram of the controller is shown below. Figure 3 The circuit diagram of the liquid detection device is shown below. Figure 4 As shown, the detection value of the liquid detection device is the sampled value at the PF terminal, or AD value. This value is proportional to the voltage at the PF terminal. The PF terminal is connected to the pin of the MCU (Microcontroller Unit), so that the controller can obtain the detection value of the probe and determine the state of the probe.

[0128] When the probe comes into contact with the liquid, it will short-circuit. A preset threshold can be used to determine if the probe is short-circuited. For example, with a 10-bit AD bit, the maximum AD value it can sample is 1023. A preset threshold of 50 can be set; if the probe's detection value is below 50, it is considered short-circuited. Furthermore, when the probe is not in contact with the liquid, it is in an open state. In this case, the probe's detection value is generally greater than the highest detection value threshold of 1000, and also much greater than the preset threshold.

[0129] In one example, after determining that the liquid detection device is not short-circuited, the process of continuing to control the liquid detection device to detect whether there is liquid in the overflow container includes:

[0130] Continue to acquire the detection value of the liquid detection device, and determine whether the liquid detection device has been in contact with foam within a continuously preset time period based on the detection value of the liquid detection device;

[0131] If the liquid detection device comes into contact with foam for a continuous preset time period, it is determined that there is liquid in the spill containment container.

[0132] When the slurry boils, a large amount of foam will be produced. What overflows into the overflow prevention container may be foam rather than liquid. In order to ensure timely detection of slurry boiling, boiling can also be determined by detecting foam when no liquid is detected in the overflow prevention container.

[0133] The continuous preset time period can be set by those skilled in the art according to actual needs, for example, set to 10 seconds. When the sensor of the liquid detection device comes into contact with foam, the detection value output by the liquid detection device will also change. At this time, the sensor, such as the probe, is between the open state and the short-circuit state, and the detection value of the probe is between the preset threshold and the highest detection value threshold, that is, not less than 50 and not greater than 1000.

[0134] The following is combined Figure 5 The example boiling determination process illustrates the boiling determination method of the food processor in this embodiment.

[0135] S1: Start heating, heating power 550W.

[0136] In this step, the food processor is controlled to heat at a power of 550W, and then proceeds to step S2-1.

[0137] It should be noted that before this step, step S0 may also be included: heating at full power of 650W for 30 seconds, stirring for 6 seconds, and when the temperature reaches 87 degrees, proceeding to step S1 to achieve rapid heating.

[0138] S2-1: First check to see if the probe is short-circuited.

[0139] If the detection value collected by the probe is less than the minimum detection threshold, it indicates that the probe is short-circuited and there is liquid in the overflow container, proceeding to step S3.

[0140] If the detection value collected by the probe is not less than the minimum detection threshold, it means that the probe is not short-circuited, and proceed to step S2-2.

[0141] S2-2: Determine whether the probe has been in contact with the foam for 10 consecutive seconds.

[0142] If the probe collects detection values ​​that are between the lowest and highest detection thresholds for 10 consecutive seconds, it means that the probe has been in contact with the foam for 10 consecutive seconds, and the process proceeds to step S3; otherwise, the process proceeds to step S1 to continue heating.

[0143] S3: Stop heating and check if the probe is disconnected for the first time.

[0144] If the detection value collected by the probe is greater than the highest detection threshold, it means that the probe is disconnected and there is no liquid in the overflow container, and proceed to step S4.

[0145] If the detection value collected by the probe is not greater than the highest detection threshold, it means that the probe has not been disconnected. Continue to stop heating and determine the probe status.

[0146] S4: Start heating, heating power 550W.

[0147] In this step, the food processor is controlled to heat at a power of 550W, and then proceeds to step S5-1.

[0148] S5-1: Second check to see if the probe is short-circuited.

[0149] If the detection value collected by the probe is less than the minimum detection threshold, it indicates that the probe is short-circuited and there is liquid in the overflow container, proceeding to step S6.

[0150] If the detection value collected by the probe is not less than the minimum detection threshold, it means that the probe is not short-circuited, and proceed to step S5-2.

[0151] S5-2: Determine whether the probe has been in contact with the foam for 10 consecutive seconds.

[0152] If the probe collects detection values ​​that are between the lowest and highest detection thresholds for 10 consecutive seconds, it means that the probe has been in contact with the foam for 10 consecutive seconds, and proceed to step S6; otherwise, proceed to step S4 to continue heating.

[0153] S6: Stop heating and check if the probe is disconnected for the second time.

[0154] If the detection value collected by the probe is greater than the highest detection threshold, it means that the probe is disconnected and there is no liquid in the overflow container, then proceed to step S7.

[0155] If the detection value collected by the probe is not greater than the highest detection threshold, it means that the probe has not been disconnected. Continue to stop heating and determine the probe status.

[0156] S7: Boiling point detection complete.

[0157] It has been confirmed that the slurry has boiled.

[0158] In one embodiment, the overflow prevention container described in the above embodiment is disposed within the lid of the cooking cup, which may be referred to as a siphon lid, and the overflow prevention container may be referred to as an overflow prevention cavity. During heating, the liquid in the cooking cup overflows into the overflow prevention cavity through the flow channel.

[0159] For example, Figure 6 An external view of a blender using the siphon cup lid is shown. The blender includes a siphon cup lid 11, a cup body 12, and a main unit 13. Figure 7 The cross-sectional view of the food processor shows the location of the overflow chamber 21, the flow channel 22, and the filter device 23. Figure 8 A schematic diagram of the substructure of the siphon cup lid is shown. The filter device 23 has a mesh structure with multiple small holes, used to defoam the liquid overflowing into the anti-overflow cavity, thus improving the taste of the liquid.

[0160] Among them, the handle 31 is used to lift and place the cup lid; the vent 32 is connected to the anti-overflow cavity, so that the air pressure in the anti-overflow cavity is consistent with the external atmospheric pressure; component A and component B are combined to form Figure 7The annular anti-overflow cavity and the annular flow channel are used in this example. In this example, the anti-overflow cavity is an annular cavity and the flow channel is an annular channel. In other examples, the anti-overflow cavity and the flow channel can also be other shapes and structures, and can also be formed by components A and B without being combined. This embodiment does not limit this. The filter device 33 is set at the connection between the flow channel and the mouth of the cooking cup and is used to defoam the slurry. The rubber ring 34 is used to fix the cup lid to the mouth of the cooking cup and has the function of preventing water leakage.

[0161] By placing the overflow preventer in the lid, the horizontal position of the overflow preventer is ensured to be higher than that of the blender cup, which allows the liquid pressure in the overflow preventer to be greater than the liquid pressure in the blender, providing additional pressure beyond atmospheric pressure to promote the formation of the siphon effect. On the other hand, this lid structure is very low in cost and easy to implement.

[0162] When the overflow-proof container is the overflow-proof cavity in the cup lid, when the food processor is heating or blending, if the contents of the food processor overflow into the overflow-proof cavity through the flow channel, the contents will block the exhaust channel between the flow channel and the vent hole, so that the air pressure in the food processor gradually increases as heating or blending continues.

[0163] The contents overflowing from the blender cup into the overflow-proof chamber along the open channel also block the venting channel between the open channel and the vent, forming a water seal. This prevents gas from escaping during heating or blending. The sealed space creates a pressure higher than atmospheric pressure during blending or heating, making it easier to blend and cook food, thus speeding up the cooking process. When the pressure inside the cup reaches a certain level, the pressure can still be released through the liquid surface in the storage chamber, which is safer and more reliable than directly sealing the venting channel. At the same time, overflowing foam is largely converted into a slurry after passing through the overflow-proof chamber, preventing it from overflowing from the vent in large volumes. This effectively prevents food from spilling out, allowing for high-power cooking and better taste. Furthermore, the water seal also prevents noise from escaping, reducing the noise level during the blender's operation.

[0164] This invention also provides a food processor, which includes a food processor cup, an overflow preventer, and a controller. A flow channel exists between the food processor cup and the overflow preventer. During the heating process of the food processor, the liquid in the food processor cup can overflow into the overflow preventer through the flow channel. The overflow preventer is connected to the outside through a vent in the food processor. A liquid detection device is disposed inside the overflow preventer. The controller is communicatively connected to the liquid detection device. The controller is used to execute the boiling determination method of the food processor according to any embodiment of this invention.

[0165] During the heating process, the food processor alternately heats up and stops heating.

[0166] This invention also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the boiling determination method for a food processor according to any embodiment of this invention.

[0167] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of the solution in this specification according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0168] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0169] Other embodiments of this specification will readily occur to those skilled in the art upon consideration of the specification and practice of the invention claimed herein. This specification is intended to cover any variations, uses, or adaptations that follow the general principles of this specification and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this specification are indicated by the following claims.

[0170] It should be understood that this specification is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this specification is limited only by the appended claims.

[0171] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A method for determining boiling point in a food processor, characterized in that, The food processor includes a food processor cup, a liquid detection device, and an overflow preventer. A flow channel exists between the food processor cup and the overflow preventer. During the heating process of the food processor, the liquid in the food processor cup can overflow into the overflow preventer through the flow channel. The overflow preventer is connected to the outside through a vent in the food processor. The liquid detection device is located inside the overflow preventer. The method includes: Control the food processor to perform heating operations; During the heating process of the food processor, the liquid detection device is controlled to detect whether there is liquid in the overflow container; Based on the detection results of the liquid detection device, it is determined whether the liquid in the cooking cup is boiling; During the heating process of the food processor, the food processor alternately heats and stops heating. During the heating process, controlling the liquid detection device to detect the presence of liquid in the overflow container includes: during the heating process, controlling the liquid detection device to detect the presence of liquid in the overflow container; if liquid is detected, controlling the food processor to stop heating; during the period when the food processor stops heating, if the liquid detection device detects that there is no liquid in the overflow container, controlling the food processor to resume heating; during the period when the food processor resumes heating, controlling the liquid detection device to detect the presence of liquid in the overflow container again; if liquid is detected, obtaining the detection result of the liquid detection device.

2. The method according to claim 1, characterized in that, The step of determining whether the liquid in the cooking cup is boiling based on the detection result of the liquid detection device includes: In response to the liquid detection device detecting the presence of liquid in the spill containment container, it is determined that the slurry in the cooking cup has boiled.

3. The method according to claim 1, characterized in that, During the heating operation of the food processor, the liquid in the food processor cup may overflow into the overflow prevention container through the flow channel. When the food processor stops heating, the liquid that overflowed into the overflow prevention container flows back into the food processor cup through the flow channel.

4. The method according to claim 1 or 3, characterized in that, The step of determining whether the liquid in the cooking cup is boiling based on the detection result of the liquid detection device includes: When the liquid detection device detects that there is liquid in the spill containment container a number of times equal to a preset number, it is determined that the slurry in the cooking cup has boiled.

5. The method according to claim 4, characterized in that, The step of determining whether the liquid in the cooking cup is boiling based on the detection result of the liquid detection device includes: If the liquid detection device detects liquid in the anti-overflow container less than the preset number of times, it determines that the slurry in the blending cup has not boiled and controls the blender to stop heating. After the liquid detection device detects that there is no liquid in the overflow container, it controls the food processor to start heating again and controls the liquid detection device to detect whether there is liquid in the overflow container. If liquid is detected, the detection result of the liquid detection device is obtained, and it is determined again whether the slurry in the food processor is boiling.

6. The method according to claim 1, characterized in that, The control of the liquid detection device to detect whether there is liquid in the spill containment container includes: Obtain the detection value from the liquid detection device; Based on the detection value of the liquid detection device, determine whether the liquid detection device is short-circuited; If the detected value is less than or equal to a preset threshold, it is determined that the liquid detection device is short-circuited, and it is determined that there is liquid in the overflow container; If the detected value is greater than the preset threshold, it is determined that the liquid detection device is not short-circuited, and the liquid detection device continues to be controlled to detect whether there is liquid in the overflow container.

7. The method according to claim 6, characterized in that, After determining that the liquid detection device is not short-circuited, the method of continuing to control the liquid detection device to detect whether there is liquid in the overflow container also includes: Continue to acquire the detection value of the liquid detection device, and determine whether the liquid detection device has been in contact with foam within a continuously preset time period based on the detection value of the liquid detection device; If the liquid detection device comes into contact with foam for a continuous preset time period, it is determined that there is liquid in the spill containment container.

8. The method according to claim 1, characterized in that, The control of the food processor to perform heating includes: The food processor is controlled to heat at a first power, which is greater than a preset power threshold.

9. The method according to claim 8, characterized in that, The method of controlling the food processor to perform heating operations also includes: While the food processor is controlled to heat at a first power, the food processor is also controlled to perform a stirring operation.

10. The method according to claim 9, characterized in that, Before the liquid detection device detects whether there is liquid in the spill containment container, the method further includes: The temperature of the slurry inside the cooking cup is obtained; In response to the slurry temperature reaching a preset temperature value, the food processor is controlled to heat at a second power lower than the first power.

11. The method according to claim 10, characterized in that, The control of the liquid detection device to detect whether there is liquid in the spill containment container includes: During the heating operation of the food processor at a second power less than the first power, the liquid detection device is controlled to detect whether there is liquid in the overflow container.

12. The method according to claim 1, characterized in that, The food processor further includes a second liquid detection device, which is disposed inside the spill containment container and positioned higher than the liquid detection device. The method further includes: In response to the second liquid detection device detecting that the liquid in the overflow container has reached the upper limit, the food processor is controlled to stop heating.

13. A food processor, characterized in that, The food processor includes a food processor cup, an overflow preventer, and a controller. A flow channel exists between the food processor cup and the overflow preventer. During the heating process of the food processor, the liquid in the food processor cup can overflow into the overflow preventer through the flow channel. The overflow preventer is connected to the outside through a vent in the food processor. A liquid detection device is disposed inside the overflow preventer. The controller is communicatively connected to the liquid detection device. The controller is used to execute the method described in any one of claims 1 to 12.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method according to any one of claims 1 to 12.

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