Cooking device and control method

Abstract

The present invention discloses a cooking device, comprising a shell, an inner pot located in the shell, a baking tray, a heating device for heating food inside the inner pot, a first infrared ranging sensor, a second infrared ranging sensor and a controller; the baking tray can be arranged at different heights of the inner pot; the detection end of the first infrared ranging sensor and the detection end of the second ranging sensor are respectively located on the upper and lower sides of the inner pot, and are used to detect the height information of the baking tray located in the inner pot; the heating device, the first infrared ranging sensor and the second infrared ranging sensor are respectively electrically connected to the controller; the controller is used to control the heating device to operate at a preset power according to the height information; the present invention also discloses a control method applied to the above-mentioned cooking device; when using the cooking device and the control method, the user only needs to place the baking tray in the position of the inner pot according to the quantity or size of the food, and there is no need to manually adjust the heating power again, the cooking device has a high degree of intelligence, and improves the user's operating experience.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a cooking device and a control method thereof. Background Art

[0002] Cooking appliances, such as steamers, ovens, or micro ovens, use steam, electric heating, or microwaves to heat and cook the food inside. The ingredients are placed on a baking tray, which is then placed inside the oven. The user then adjusts the heating power based on the quantity or size of the ingredients before starting to heat the food. However, users must manually adjust the heating power each time they use the appliance, which is particularly difficult for the elderly, making it difficult to determine how to adjust the heating power. This results in a poor user experience. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide a cooking device and a control method, which can effectively solve the problem that the heating power of the existing cooking device needs to be manually adjusted each time it is used.

[0004] The above technical problems are solved by the following technical solutions:

[0005] A cooking device comprises a shell, an inner pot located within the shell, a baking tray, a heating device for heating food inside the inner pot, a first infrared ranging sensor, a second infrared ranging sensor, and a controller; the baking tray is located within the inner pot and can be arranged at different heights within the inner pot; the detection ends of the first infrared ranging sensor and the second ranging sensor are respectively located on the upper and lower sides of the inner pot, and are used to detect information about the height of the baking tray within the inner pot; the heating device, the first infrared ranging sensor, and the second infrared ranging sensor are respectively electrically connected to the controller; and the controller is used to control the heating device to operate at a preset power according to the height information.

[0006] Compared with the background art, the cooking device of the present invention has the following beneficial effects:

[0007] During use, after putting the ingredients into the baking tray, the user places the baking tray into the inner pot at different heights according to the quantity or size of the ingredients. The first infrared ranging sensor and the second infrared ranging sensor detect the height information of the baking tray, and the controller obtains the height information to generate the actual height value of the baking tray in the inner pot and controls the heating device to operate at a preset power according to the actual height value; for example, the controller pre-stores preset height values, and the preset height values ​​correspond to different height positions of the baking tray placed in the inner pot, or when the baking tray is not placed, the preset height value is zero, and each preset height value can correspond to each preset power of the heating device. For example, the baking tray is set to a preset height value at the highest position of the inner pot, and the preset power corresponding to the preset height value is the minimum operating power of the heating device; the baking tray is set to another preset height value at the lowest position of the inner pot or if no baking tray is placed in. The preset power corresponding to the preset height value is the maximum operating power of the heating device; the preset power of the heating device is determined by matching the actual height value with the preset height value. In this way, the user only needs to place the baking tray in the inner pot according to the quantity or size of the ingredients, and there is no need to manually adjust the heating power again; at the same time, the detection end of the first infrared ranging sensor and the detection end of the second infrared ranging sensor are respectively located on the upper and lower sides of the inner pot. If the user puts two or more baking trays, the actual height values ​​output by the height information of the first infrared ranging sensor and the second infrared ranging sensor are inconsistent. The controller can determine the preset power of the heating device by matching the minimum actual height value with the preset height value. The system has a high degree of intelligence, is more convenient to operate for some elderly people, and improves the user's operating experience.

[0008] In one embodiment, the cooking device further comprises a first mounting plate, which is fixedly mounted on the shell; the first infrared ranging sensor comprises a first base and a first body connected to the first base, and a first elastic clip is provided on the outer wall of the first body; the first mounting plate is provided with a first mounting hole; one end of the first body sequentially extends into the first mounting hole and the inner pot, so that the first elastic clip is abutted against one side of the first mounting plate and the first base is abutted against the other side of the first mounting plate.

[0009] In one embodiment, the above-mentioned cooking device also includes a second mounting plate and a connecting member; the connecting member is fixedly mounted on the shell through the second mounting plate; the second infrared ranging sensor includes a second base and a second body connected to the second base, and the outer wall of the second body is provided with a second elastic clip; the connecting member is provided with a second mounting hole; one end of the second body sequentially extends into the second mounting hole and the inner pot, so that the second elastic clip is abutted against one side of the connecting member and the second base is abutted against the other side of the connecting member.

[0010] In one embodiment, one end of the first body is located above the baking tray when it is at the highest height of the inner pot; one end of the second body is located below the baking tray when it is at the lowest height of the inner pot.

[0011] In one embodiment, the heating device includes a steam generator, and the steam generator is electrically connected to the controller.

[0012] In one embodiment, the heating device includes an electric heating tube and a fan, and the electric heating tube and the fan are electrically connected to the controller respectively.

[0013] In one embodiment, the heating device includes a microwave generator, and the microwave generator is electrically connected to the controller.

[0014] A method for controlling a cooking device, applied to the aforementioned cooking device, comprising: a first infrared ranging sensor and a second infrared ranging sensor respectively detecting information about the height of the baking tray relative to the inner pot; a controller acquiring the height information and generating corresponding first and second height values; the controller setting at least two preset height values ​​and preset powers, wherein the preset height values ​​and the preset powers have a one-to-one correspondence; wherein the preset height values ​​are greater than or equal to zero;

[0015] If the first height value is equal to the second height value, the controller selects the first height value or the second height value to match any of the preset height values; if the first height value or the second height value is equal to any of the preset height values, the controller controls the heating device to operate at a preset power corresponding to the preset height value matched by the first height value or the second height value;

[0016] If the first height value is greater than the second height value, the controller selects the second height value to match any of the preset height values; if the second height value is equal to any of the preset height values, the controller controls the heating device to operate at a preset power corresponding to the preset height value matched by the second height value;

[0017] If the first height value is less than the second height value, the controller selects the first height value to match any of the preset height values; if the first height value is equal to any of the preset height values, the controller controls the heating device to operate at the preset power corresponding to the preset height value matched by the first height value.

[0018] Compared with the background art, the control method of the cooking device of the present invention has the following beneficial effects:

[0019] During use, the user puts the ingredients into different height positions in the inner pot according to the quantity or size, and puts the ingredients into the baking tray. The first infrared ranging sensor and the second infrared ranging sensor detect the height information of the baking tray. The controller obtains the height information to generate a first height value and a second height value of the baking tray in the inner pot, and compares them with the preset height value. The preset height value corresponds to the baking tray placed at different height positions in the inner pot, or when no baking tray is placed, the preset height value is zero. Each preset height value corresponds to each preset power of the heating device; the preset power of the heating device is determined by matching the first height value or the second height value with the preset height value; for example, when only one baking tray is placed, the first height value and the second height value are equal. When the baking tray is placed at the highest position of the inner pot, a preset height value is set. At this time, the number of ingredients at this time can be set to be small or the ingredients are small. The preset power of the heating device corresponding to the preset height value can be the minimum operating power. When the first height value and the second height value are equal to the preset height value, the controller controls the heating device to operate at the minimum operating power; or When the baking tray is placed at the lowest position of the inner pot or when no baking tray is placed in, another preset height value is set. At this time, the number of ingredients at this time can be set to be large or the ingredients are large. The preset power of the heating device corresponding to the preset height value can be the maximum operating power. When the first height value and the second height value are equal to the preset height value, the controller controls the heating device to operate at the maximum operating power; or, when two or more baking trays are placed, the first height value and the second height value are not equal, then the controller selects the minimum value between the first height value and the second height value to match the preset height value, and the controller controls the heating device to operate at the preset power corresponding to the preset height value that matches the minimum value between the first height value and the second height value; of course, the baking tray can be set to multiple preset height values ​​between the highest height of the inner pot and the preset height value of zero, and each preset height value can correspond to each preset power. The user only needs to place the baking tray in the inner pot according to the quantity or size of the ingredients, without having to manually adjust the heating power again. The intelligent level is high, and the operation is more convenient for some elderly people, thereby improving the user's operating experience.

[0020] In one embodiment, the preset height value includes a first preset height value, a second preset height value and a third preset height value, the first preset height value corresponds to the first preset power; the second preset height value corresponds to the second preset power; and the third preset height value corresponds to the third preset power.

[0021] In one embodiment, the first preset height value is greater than the second preset height value, and the second preset height value is greater than the third preset height value; the first preset power is less than the second preset power, and the second preset power is less than the third preset power; wherein the third preset height value is greater than or equal to zero. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the cross-sectional structure of embodiment 1 of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle;

[0025] Figure 4 This is another schematic cross-sectional view of the first embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the control method of the second embodiment of the present invention.

[0027] Description of labels:

[0028] 1. Shell; 2. Inner pot; 3. Baking tray; 4. Heating device; 40. Steam generator; 41. Electric heating tube; 42. Fan; 5. First infrared ranging sensor; 50. First base; 51. First body; 510. First elastic clip; 6. Second infrared ranging sensor; 60. Second base; 61. Second body; 610. Second elastic clip; 7. First mounting plate; 8. Second mounting plate; 9. Connector. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that if the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0033] Example 1

[0034] See also Figure 1-4 As shown, this embodiment provides a cooking device, including a shell 1, an inner pot 2 located in the shell 1, a baking tray 3, a heating device 4 for heating food inside the inner pot 2, a first infrared ranging sensor 5, a second infrared ranging sensor 6 and a controller; the baking tray 3 is located in the inner pot 2 and can be set at different heights of the inner pot 2; the detection end of the first infrared ranging sensor 5 and the detection end of the second ranging sensor are respectively located on the upper and lower sides of the inner pot 2, for detecting height information of the baking tray 3 located in the inner pot 2; the heating device 4, the first infrared ranging sensor 5 and the second infrared ranging sensor 6 are respectively electrically connected to the controller; the controller is used to control the heating device 4 to operate at a preset power according to the height information.

[0035] On the basis of the above structure, when in use, after putting the ingredients into the baking tray 3, the user puts the baking tray 3 into different height positions in the inner pot 2 according to the quantity or size of the ingredients, wherein the inner wall of the inner pot 2 is provided with a structure that can accommodate the baking tray 3, such as a boss, a guide rail, a shelf, etc., the first infrared ranging sensor 5 and the second infrared ranging sensor 6 detect the height information of the baking tray 3, and the controller obtains the height information to generate the actual height value of the baking tray 3 in the inner pot 2 and controls the heating device 4 to operate at a preset power according to the actual height value; for example, the controller pre-stores a preset height value, and the preset height value corresponds to the baking tray 3 placed at different height positions in the inner pot 2, or when the baking tray 3 is not placed, the preset height value is zero, and each preset height value can correspond to each preset power of the heating device 4, such as the baking tray 3 is set to a preset height value at the highest position of the inner pot 2, and the preset power corresponding to the preset height value is the minimum operating power of the heating device 4; the baking tray 3 in the inner pot 2 or the lowest position of the baking tray 3 is set to another preset height value without putting the baking tray 3 in, and the preset power corresponding to the preset height value is the maximum operating power of the heating device 4; the preset power of the heating device 4 is determined by matching the actual height value with the preset height value. In this way, the user only needs to place the baking tray 3 in the position of the inner pot 2 according to the quantity or size of the ingredients, and there is no need to manually adjust the heating power again; at the same time, the detection end of the first infrared ranging sensor 5 and the detection end of the second ranging sensor are respectively located on the upper and lower sides of the inner pot 2. If the user puts in two or more baking trays 3, the actual height values ​​output by the height information of the first infrared ranging sensor 5 and the second infrared ranging sensor 6 are inconsistent, then the controller (not shown in the drawing) can determine the preset power of the heating device 4 by matching the minimum actual height value with the preset height value. It has a high degree of intelligence, is more convenient to operate for some elderly people, and improves the user's operating experience.

[0036] It should be noted that, in this embodiment, the controller (not shown in the drawing) is a single-chip microcomputer or a PLC programmable controller (not shown in the drawing). The single-chip microcomputer has the advantages of realizing control functions while having stronger data processing capabilities and the ability to execute relatively complex control algorithms and larger storage capacity; the PLC has stable and reliable operation, and is programmed with ladder diagrams to lower the programming threshold; the hardware architecture of the single-chip microcomputer or PLC programmable controller (not shown in the drawing) is a conventional structure in this field and can be selected according to the product usage requirements. Its model or structural form is no longer limited here.

[0037] Furthermore, when the baking tray 3 is placed in the inner pot 2, the controller (not shown in the drawing) determines the actual height value generated by the first infrared ranging sensor 5 and the second infrared ranging sensor 6 and the preset height value set in the controller with the vertical distance value between the same position of the baking tray 3 and the bottom surface of the inner pot 2 as a reference.

[0038] It is worth mentioning that each preset height value corresponds to each operating power of the heating device 4, which can be understood as the inner pot 2 is provided with guide rails or shelves of different heights. When the machine leaves the factory, the controller (not indicated in the drawing) sets the height of the baking tray 3 when it is placed in any guide rail or shelf, or a preset height value when the baking tray 3 is not placed in. The operating power of the heating device 4 is set according to the preset height value, or during use, the user sets the preset height value corresponding to the operating power of the heating device 4.

[0039] In addition, the working principle of infrared ranging is that the detection end of the infrared ranging sensor has a pair of infrared signal transmitting and receiving diodes. The transmitting diode transmits an infrared signal of a specific frequency, and the receiving diode receives the infrared signal of this frequency. When the infrared detection direction encounters an obstacle, the infrared signal is reflected back and received by the receiving diode. The controller (not shown in the drawing) processes the time difference between transmission and reception to calculate the distance between the infrared ranging sensor and the obstacle. If the distance between the infrared ranging sensor and the obstacle is the height inside the inner pot 2, it is determined that the user has not put in the baking tray 3. The position of the baking tray 3 in the inner pot 2 is determined by this technical means; therefore, the above-mentioned information for detecting the height of the baking tray 3 in the inner pot 2 includes the time difference between the transmission and reception of the infrared signal.

[0040] In this embodiment, if Figure 2 As shown, the above-mentioned cooking device also includes a first mounting plate 7, which is fixedly mounted on the shell 1; the first infrared ranging sensor 5 includes a first base 50 and a first body 51 connected to the first base 50, and the outer wall of the first body 51 is provided with a first elastic clip 510; the first mounting plate 7 is provided with a first mounting hole; one end of the first body 51 sequentially extends into the first mounting hole and the inner pot 2, so that the first elastic clip 510 is abutted against one side of the first mounting plate 7 and the first base 50 is abutted against the other side of the first mounting plate 7; with such an arrangement, the installation structure of the first infrared ranging sensor 5 is simple, thereby improving the assembly efficiency of the entire machine.

[0041] Of course, in other embodiments, the first infrared ranging sensor 5 can also be fixed to the inner tank 2 by screw connection, magnetic connection, etc., which will not be elaborated here.

[0042] Furthermore, if Figure 3As shown, in this embodiment, the above-mentioned cooking device also includes a second mounting plate 8 and a connecting member 9; the connecting member 9 is fixedly mounted on the shell 1 through the second mounting plate 8; the second infrared ranging sensor 6 includes a second base 60 and a second body 61 connected to the second base 60, and the outer wall of the second body 61 is provided with a second elastic clip 610; the connecting member 9 is provided with a second mounting hole; one end of the second body 61 sequentially extends into the second mounting hole and the inner pot 2, so that the second elastic clip 610 is abutted against one side of the connecting member 9 and the second base 60 is abutted against the other side of the connecting member 9; with such an arrangement, the installation structure of the second infrared ranging sensor 6 is simple, thereby improving the assembly efficiency of the whole machine.

[0043] Of course, in other embodiments, the second infrared ranging sensor 6 can also be fixed to the inner tank 2 by screw connection, magnetic connection, etc., which will not be elaborated here.

[0044] In this embodiment, one end of the first body 51 is located above the baking tray 3 when it is at the highest height position of the inner pot 2; it is easy to understand that the baking tray 3 being at the highest height position of the inner pot 2 can be understood as the inner pot 2 being provided with multiple layers of guide rails or shelves for accommodating the baking tray 3, and the baking tray 3 being set on the guide rails or shelves at the highest height means that the baking tray 3 is at the highest height position of the inner pot 2.

[0045] In this embodiment, one end of the second body 61 is located below the baking tray 3 when it is at the lowest height position of the inner pot 2; it is also easy to understand that the baking tray 3 being at the lowest height position of the inner pot 2 can be understood as the inner pot 2 being provided with multiple layers of guide rails or shelves for accommodating the baking tray 3, and the baking tray 3 being set on the guide rails or shelves at the lowest height means that the baking tray 3 is at the lowest height position of the inner pot 2.

[0046] In this embodiment, the heating device 4 includes a steam generator 40, and the steam generator 40 is electrically connected to the controller (not shown in the drawing); illustratively, when the baking tray 3 is placed at the highest position of the inner pot 2, the steam generator 40 operates at the minimum operating power, and the amount of steam generated at this time is the least, which is suitable for cooking a small number or smaller ingredients, avoiding the steam generator 40 running at high power to generate excessive steam, causing overheating of the ingredients and poor cooking taste; when the baking tray 3 is placed at the lowest position of the inner pot 2 or the baking tray 3 is not placed, the steam generator 40 operates at the maximum operating power, and the amount of steam generated at this time is the largest, which is suitable for cooking a large number or larger ingredients, increasing the cooking speed without affecting the cooking taste; of course, the steam generator 40 can heat the ingredients at any operating power when the baking tray 3 is at different height positions between the highest position and the lowest position of the inner pot 2.

[0047] It should be noted that the steam generator 40 is a conventional structure in this field and can be selected according to the use requirements of the product. Its model or structural form will not be elaborated here.

[0048] In this embodiment, the heating device 4 includes an electric heating tube 41 and a fan 42, and the electric heating tube 41 and the fan 42 are respectively electrically connected to the controller (not shown in the drawing); illustratively, when the baking tray 3 is placed at the highest position of the inner pot 2, the electric heating tube 41 and the fan 42 both operate at the minimum operating power. At this time, the heating amount is the minimum, which is suitable for cooking a small number or smaller ingredients, avoiding the electric heating tube 41 and the fan 42 running at high power to generate excessive heat, causing overheating of the ingredients and poor cooking taste; when the baking tray 3 is placed at the lowest position of the inner pot 2 or the baking tray 3 is not placed, the electric heating tube 41 and the fan 42 both operate at the maximum operating power. At this time, the heating amount is the maximum, which is suitable for cooking a large number or larger ingredients, increasing the cooking speed without affecting the cooking taste; of course, the electric heating tube 41 and the fan 42 can heat the ingredients at any operating power when the baking tray 3 is at different height positions between the highest position and the lowest position of the inner pot 2.

[0049] It should be noted that the electric heating tube 41, the fan 42 and the combination of the two are conventional structures in this field and can be selected according to the use requirements of the product. Their models or structural forms will not be elaborated here.

[0050] In one embodiment, the heating device 4 includes a microwave generator (not shown in the drawings), which is electrically connected to the controller (not shown in the drawings); illustratively, when the baking tray 3 is placed at the highest position of the inner pot 2, the microwave generator (not shown in the drawings) operates at the minimum operating power. At this time, the amount of microwaves generated is the least, which is suitable for cooking a small number or smaller ingredients, avoiding the microwave generator (not shown in the drawings) running at high power and causing overheating of the ingredients, resulting in poor cooking taste; when the baking tray 3 is placed at the lowest position of the inner pot 2 or the baking tray 3 is not placed, the microwave generator (not shown in the drawings) operates at the maximum operating power. At this time, the amount of microwaves generated is the largest, which is suitable for cooking a large number or larger ingredients, increasing the cooking speed without affecting the cooking taste; of course, the microwave generator (not shown in the drawings) can heat the ingredients at any operating power when the baking tray 3 is at different heights between the highest and lowest positions of the inner pot 2.

[0051] It should be noted that the structure of the microwave generator (not shown in the drawings) is a conventional structure in this field and can be selected according to the use requirements of the product. Its model or structural form will not be elaborated here.

[0052] Example 2

[0053] A method for controlling a cooking device, such as Figure 5 As shown, the cooking device described above includes: the first infrared distance sensor 5 and the second infrared distance sensor 6 respectively detect the height information of the baking tray 3 relative to the inner pot 2; the controller obtains the height information and generates a corresponding first height value and a second height value respectively; the controller sets at least two preset height values ​​and preset powers, and the preset height values ​​and the preset powers have a one-to-one correspondence; wherein the preset height value is greater than or equal to zero;

[0054] If the first height value is equal to the second height value, the controller selects the first height value or the second height value to match any of the preset height values; if the first height value or the second height value is equal to any of the preset height values, the controller controls the heating device 4 to operate at a preset power corresponding to the preset height value matched by the first height value or the second height value;

[0055] If the first height value is greater than the second height value, the controller selects the second height value to match any of the preset height values; if the second height value is equal to any of the preset height values, the controller controls the heating device 4 to operate at a preset power corresponding to the preset height value matched by the second height value;

[0056] If the first height value is less than the second height value, the controller selects the first height value to match any of the preset height values; if the first height value is equal to any of the preset height values, the controller controls the heating device 4 to operate at the preset power corresponding to the preset height value matched by the first height value.

[0057] On the basis of the above control method, when in use, the user puts the ingredients into different height positions in the inner pot 2 according to the quantity or size of the ingredients, and puts the ingredients into the baking tray 3. The first infrared ranging sensor 5 and the second infrared ranging sensor 6 detect the height information of the baking tray 3. The controller obtains the height information to generate a first height value and a second height value of the baking tray 3 in the inner pot 2, and compares them with the preset height value. The preset height value corresponds to the baking tray 3 placed at different height positions in the inner pot 2, or when the baking tray 3 is not placed, the preset height value is zero. Each preset height value corresponds to each preset power of the heating device 4; the preset power of the heating device 4 is determined by matching the first height value or the second height value with the preset height value; for example, when only one baking tray 3 is placed, the first height value and the second height value are equal. When the baking tray 3 is placed at the highest position of the inner pot 2, a preset height value is set. At this time, the number of ingredients at this time can be set to be small or the ingredients are small. The preset power of the heating device 4 corresponding to the preset height value can be the minimum operating power. When the first height value and the second height value are equal to the preset height value, the controller controls the heating device 4 to operate at the minimum operating power. ; Alternatively, when only one baking tray 3 is placed and the baking tray 3 is placed at the lowest position of the inner pot 2 or when no baking tray 3 is placed, another preset height value is set. At this time, the amount of food at this time can be set to be large or the food is large. The preset power corresponding to the preset height value of the heating device 4 can be the maximum operating power. When the first height value and the second height value are equal to the preset height value, the controller controls the heating device 4 to operate at the maximum operating power; or, when two or more baking trays 3 are placed, the first height value and the second height value are not equal, the controller selects the minimum value between the first height value and the second height value to match the preset height value, and the controller controls the heating device 4 to operate at the preset power corresponding to the preset height value that matches the minimum value between the first height value and the second height value; of course, the baking tray 3 can be set to multiple preset height values ​​between the highest height of the inner pot 2 and the preset height value of zero, and each preset height value can correspond to each preset power. The user only needs to place the baking tray 3 in the position of the inner pot 2 according to the quantity or size of the food, without having to manually adjust the heating power again. The intelligent level is high, the operation is more convenient for some elderly people, and the user's operating experience is improved.

[0058] Furthermore, in this embodiment, the preset height value includes a first preset height value, a second preset height value and a third preset height value, the first preset height value corresponds to the first preset power; the second preset height value corresponds to the second preset power, and the third preset height value corresponds to the third preset power; if the actual height value is equal to the first preset height value, the controller (not marked in the drawing) controls the heating device 4 to operate at the first preset power; if the actual height value is equal to the second preset height value, the controller (not marked in the drawing) controls the heating device 4 to operate at the second preset power; if the actual height value is equal to the second preset height value, the controller (not marked in the drawing) controls the heating device 4 to operate at the second preset power; When the height value is equal to the third preset height value, the controller (not shown in the drawing) controls the heating device 4 to operate according to the third preset power; specifically, two layers of guide rails or shelves of different heights are provided in the inner pot 2, and the controller (not shown in the drawing) sets the first preset height value, the second preset height value and the third preset height value corresponding to the guide rails or shelves set at different heights of the baking tray 3 and when the baking tray 3 is not placed in. The first preset height value corresponds to the first preset power, the second preset height value corresponds to the second preset power, and the third preset height value corresponds to the third preset power. In this way, each preset height value corresponds to each preset power, and the user does not need to manually adjust the heating power again, which provides a good experience.

[0059] Furthermore, in this embodiment, the first preset height value is greater than the second preset height value, and the second preset height value is greater than the third preset height value; the first preset power is less than the second preset power, and the second preset power is less than the third preset power; wherein, the third preset height value is greater than or equal to zero; the advantage of such a design is that as the height of the baking tray 3 in the inner pot 2 increases successively, the corresponding preset power decreases successively, and the operating power is set reasonably, avoiding the situation where the first preset power corresponding to the baking tray 3 is set at the highest point of the inner pot 2 and is set too high, thereby reducing the waste of electric energy.

[0060] It should be noted that the settings of the first preset power, the second preset power and the third preset power can be set when the whole machine leaves the factory or can be set by the user according to his or her own usage habits during use.

[0061] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The specific contents of the above-mentioned specific embodiments merely represent several embodiments of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. A method for controlling a cooking device, characterized in that: The cooking device includes a housing, an inner pot located within the housing, a baking tray, a heating device for heating food placed in the inner pot, a first infrared ranging sensor, a second infrared ranging sensor, and a controller; the baking tray is located within the inner pot and can be arranged at different heights within the inner pot; the detection ends of the first infrared ranging sensor and the second infrared ranging sensor are respectively located at the upper and lower sides of the inner pot, and are used to detect the height of the baking tray within the inner pot; the heating device, the first infrared ranging sensor, and the second infrared ranging sensor are respectively electrically connected to the controller; the controller is used to control the heating device to operate at a preset power according to the height information; The user places the baking tray at different heights in the inner pot according to the quantity or size of the ingredients, and the controller obtains the height information and generates corresponding first and second height values ​​respectively; the controller sets at least two preset height values ​​and preset powers, and the preset height values ​​and the preset powers have a one-to-one correspondence; wherein the preset height value is greater than or equal to zero; the baking tray is set at a preset height value at the highest position of the inner pot, and the preset power corresponding to the preset height value is the minimum operating power of the heating device; the baking tray is set at another preset height value at the lowest position of the inner pot or without the baking tray, and the preset power corresponding to the preset height value is the maximum operating power of the heating device; When only one baking tray is placed, the first height value and the second height value are equal, the controller selects the first height value or the second height value to match any of the preset height values, and if the first height value or the second height value is equal to any of the preset height values, the controller controls the heating device to operate at a preset power corresponding to the preset height value matched by the first height value or the second height value; When two or more baking trays are placed, the first height value and the second height value are not equal; if the first height value is greater than the second height value, the controller selects the second height value to match any of the preset height values; if the second height value is equal to any of the preset height values, the controller controls the heating device to operate at a preset power corresponding to the preset height value matched by the second height value; If the first height value is less than the second height value, the controller selects the first height value to match any of the preset height values; if the first height value is equal to any of the preset height values, the controller controls the heating device to operate at the preset power corresponding to the preset height value matched by the first height value.

2. The control method according to claim 1, wherein: The preset height values ​​include a first preset height value, a second preset height value, and a third preset height value, wherein the first preset height value corresponds to a first preset power; and the second preset height value corresponds to a second preset power; The third preset height value corresponds to the third preset power.

3. The control method according to claim 2, wherein: The first preset height value is greater than the second preset height value, and the second preset height value is greater than the third preset height value; the first preset power is less than the second preset power, and the second preset power is less than the third preset power; wherein the third preset height value is greater than or equal to zero.

4. The control method according to claim 1, wherein: It also includes a first mounting plate, which is fixedly mounted on the shell; the first infrared ranging sensor includes a first base and a first body connected to the first base, and the outer wall of the first body is provided with a first elastic clip; the first mounting plate is provided with a first mounting hole; one end of the first body sequentially extends into the first mounting hole and the inner tank, so that the first elastic clip is abutted against one side of the first mounting plate and the first base is abutted against the other side of the first mounting plate.

5. The control method according to claim 4, wherein: It also includes a second mounting plate and a connecting member; the connecting member is fixedly mounted on the shell through the second mounting plate; the second infrared ranging sensor includes a second base and a second body connected to the second base, and the outer wall of the second body is provided with a second elastic clip; the connecting member is provided with a second mounting hole; one end of the second body sequentially extends into the second mounting hole and the inner tank, so that the second elastic clip abuts against one side of the connecting member and the second base abuts against the other side of the connecting member.

6. The control method according to claim 5, wherein: One end of the first body is located above the baking tray when it is at its highest height relative to the inner pot; one end of the second body is located below the baking tray when it is at its lowest height relative to the inner pot.

7. The control method according to claim 6, wherein: The heating device includes a steam generator, and the steam generator is electrically connected to the controller.

8. The control method according to claim 7, wherein: The heating device includes an electric heating tube and a fan, and the electric heating tube and the fan are electrically connected to the controller respectively.

9. The control method according to claim 8, wherein: The heating device includes a microwave generator, and the microwave generator is electrically connected to the controller.

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