Cooking utensils and pots deviation detection method

Abstract

The present application relates to a method for detecting misalignment of a cooking utensil and a pot. The cooking utensil includes a heating assembly and a pot. The heating assembly includes a panel and a heating element positioned below the panel. The panel includes a heating surface provided with a detection electrode, which is aligned with the heating element and has a ring-shaped structure. The detection electrode includes at least two independently arranged electrode segments. The pot includes a flat bottom surface provided with a conductive ring in a ring-shaped structure. The conductive ring is made of a conductive material. In the above scheme, the detection electrode detects the contact point between the conductive ring and the detection electrode to determine the misalignment angle and misalignment distance of the pot relative to the heating element, thereby ensuring that the heating element remains aligned with the pot, thereby improving the uniformity of heating in the pot and the heat utilization rate of the heating element.

Description

Technical Field

[0001] The present application relates to the field of electrical appliance technology, and in particular to a method for detecting deviation of cooking utensils and pots. Background Art

[0002] For example, induction cookers, which have a flat surface that holds the pot, can easily become misaligned with the heating element during use. This means the pot may not be concentric with the heating element, causing the heating center of the pot to shift, resulting in uneven heating in certain areas and affecting the texture of the food. This can also reduce the cooking performance and reliability of the cooking device and increase power loss. Summary of the Invention

[0003] Based on this, it is necessary to provide a method for detecting the deviation of cooking utensils and pots to address the problem of deviation of cooking utensils and pots.

[0004] A cooking utensil, comprising a heating assembly and a pot; the heating assembly comprises a panel and a heating element located below the panel, the panel comprising a heating surface provided with a detection electrode, the detection electrode being aligned with the heating element and having an annular structure, the detection electrode comprising at least two independently arranged electrode segments; the pot comprising a planar bottom surface provided with an annular conductive ring, the conductive ring being made of a conductive material.

[0005] In one embodiment, the cooking utensil includes a conductive wire, which is connected to the pot to form the conductive ring.

[0006] In one embodiment, the electrode segments are point-shaped, and a plurality of the electrode segments are continuously distributed along a ring to form the detection electrode.

[0007] In one embodiment, the diameter of the conductive ring is equal to the diameter of the detection electrode.

[0008] In one embodiment, the heating component further includes a bracket, the heating element is fixed to the bracket, and the bracket can be movably arranged relative to the panel in a direction parallel to the heating surface, the heating element is fixed to the bracket to move synchronously with the bracket, and there is a set position in the moving path of the heating element that is aligned with the detection electrode.

[0009] In one embodiment, the bracket is movable in at least two directions arranged at an angle.

[0010] In one embodiment, the heating element is aligned with the detection electrode when it is at the center of the moving path, and the moving direction of the bracket is the offset direction between the conductive ring and the detection electrode.

[0011] In one embodiment, the bracket is configured to drive the heating element to move to compensate for the offset distance when the offset distance between the conductive ring and the detection electrode is not greater than a set distance, and the set distance is the maximum movable distance of the bracket.

[0012] In one embodiment, the heating assembly further includes an alarm component, which is communicatively connected to the detection electrode and is configured to be triggered when the offset distance between the conductive ring and the detection electrode is greater than a set distance.

[0013] A method for detecting pot offset is applied to a cooking utensil as described in any of the above embodiments, the method comprising the following steps: controlling the pot to be placed on a heating surface so that there are two contact points between a conductive ring and a detection electrode; and calculating the offset angle and offset distance between the heating element and the pot based on the contact points between the conductive ring and the detection electrode.

[0014] In one embodiment, the heating component of the cooking utensil further includes a bracket, and the bracket is movably arranged along an offset angle; in the step of "calculating the offset angle and offset distance of the heating element and the pot based on the contact point of the conductive ring and the detection electrode", the following steps are included: calculating the offset angle of the heating element and the pot based on the contact point of the conductive ring and the detection electrode; if there are at least two possible offset directions for the offset angle, controlling the bracket to move along one of the possible offset directions, and determining whether the moving direction is correct based on the power of the heating element; if the power of the heating element increases, the moving direction of the bracket is correct; otherwise, the moving direction of the bracket is wrong, controlling the bracket to move along another possible offset direction, and determining whether the moving direction is correct based on the power of the heating element, until the moving direction of the bracket is correct.

[0015] In one embodiment, in the step of "calculating the offset angle and offset distance of the heating element and the cookware based on the contact points between the conductive ring and the detection electrode", if the angles of the two contact points corresponding to the central angles of the detection electrodes are α1 and α2 respectively, then when α2-α1≤180°, the offset angle Δα=α2-α1, and when α2-α1>180°, the offset angle Δα=α2+α1.

[0016] In one embodiment, in the step of "calculating the offset angle and offset distance of the heating element and the cookware based on the contact point between the conductive ring and the detection electrode", if the radius of the conductive ring is r, the radius of the detection electrode is R, and the angles of the two contact points corresponding to the central angles of the detection electrode are α1 and α2 respectively, then the offset distance

[0017]

[0018] The cooking utensil provided in the above scheme is provided with a detection electrode arranged in alignment with the heating element, and a conductive ring is provided on the bottom surface of the cookware, so that the position of the contact point between the conductive ring and the detection electrode is detected by the detection electrode, and the offset angle and offset distance of the cookware relative to the heating element are confirmed, thereby providing a direction and distance for the bracket to drive the heating element to move to compensate for the offset between the cookware and the heating element, so that the heating element can remain aligned with the cookware, thereby improving the heating uniformity of the cookware and improving the heat utilization rate of the heating element. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the exploded structure of a cooking utensil in one embodiment of the present application.

[0020] Figure 2 for Figure 1 Schematic diagram of the cross-sectional exploded structure of the cooking appliance.

[0021] Figure 3 for Figure 2 Schematic diagram of the centering and offset of the pot of the cooking utensil, where: Figure 3 (a) is a schematic diagram of the pot when it is centered. Figure 3 (b) is a schematic diagram of the pot after the pot is offset and the base is moved for compensation.

[0022] Figure 4 This is a top view of a heating component in a cooking appliance according to an embodiment of the present application.

[0023] Figure 5 for Figure 4 Schematic diagram of the position of the detection electrode and the conductive ring, where: Figure 5 (a) is a schematic diagram of the conductive ring when it is tilted to the lower left. Figure 5 (b) is a schematic diagram of the conductive ring when it is tilted upward. Figure 5 (c) is a schematic diagram of the conductive ring when it is tilted to the upper right. Figure 5 (d) is a schematic diagram of the conductive ring when it is tilted to the left. Figure 5 (e) is a schematic diagram of the conductive ring and the detection electrode when they are aligned. Figure 5 (f) is a schematic diagram of the conductive ring when it is tilted to the right. Figure 5 (g) is a schematic diagram of the conductive ring when it is tilted to the lower left. Figure 5 (h) is a schematic diagram of the conductive ring when it is tilted downward. Figure 5 (i) is a schematic diagram of the conductive ring at the lower right.

[0024] Figure 6 Schematic diagram of the positions of the detection electrodes and the conductive ring in the cooking utensil in one embodiment of the present application, wherein: Figure 6(a) is a schematic diagram of a conductive ring with a diameter smaller than that of the detection electrode and no contact. Figure 6 (b) is a schematic diagram of the conductive ring when the diameter is smaller than the diameter of the detection electrode and when they are in contact. Figure 6 (c) is a schematic diagram of a conductive ring with a diameter greater than that of the detection electrode and no contact. Figure 6 (d) is a schematic diagram showing a case where the diameter of the conductive ring is larger than the diameter of the detection electrode and they are not in contact.

[0025] Figure 7 This is a simplified diagram of the positions of the detection electrodes and the conductive ring in the cooking appliance in one embodiment of the present application.

[0026] Description of reference numerals:

[0027] 100. Cooking utensil; 110. Heating assembly; 111. Panel; 1111. Heating surface; 112. Heating element; 113. Detection electrode; 1131. Electrode segment; 114. Bracket; 115. Control panel; 116. Chassis; 117. Power supply board; 118. Glass plate; 120. Cookware; 121. Bottom surface; 122. Conductive ring. DETAILED DESCRIPTION

[0028] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application 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 operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0031] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0034] See Figure 1 , Figure 1 FIG1 shows a schematic diagram of the exploded structure of a cooking utensil 100 in an embodiment of the present application. The cooking utensil 100 provided in an embodiment of the present application is used for cooking food. Figure 1As shown, the cooking appliance 100 includes a heating component 110 and a pot 120, wherein the pot 120 is used to hold food, and the heating component 110 is used to heat the pot 120 and the food inside the pot 120 for cooking.

[0035] Combine Figure 2 As shown, Figure 2 An exploded cross-sectional schematic diagram of a cooking utensil 100 in an embodiment of the present application is shown. The heating assembly 110 includes a panel 111 and a heating element 112 located below the panel 111 . The heating element 112 is used to generate heat to heat the pot 120 .

[0036] In this embodiment, the heating element 112 is a heating coil, and the heating assembly 110 further includes a power supply board 117. The heating element 112 is electrically connected to the power supply board 117 so that the power supply board 117 supplies power to the heating element 112. In this embodiment, the heating element 112 has an annular structure. In other embodiments, the heating element may also be an electric ceramic heater or a full-surface thick film heater, or other heating schemes not yet identified or subject to subsequent technological development may have non-annular structures, which are not intended to be limiting.

[0037] The panel 111 includes a heating surface 1111 provided with a detection electrode 113, and the detection electrode 113 is aligned with the heating element 112. It should be noted that the alignment of the detection electrode 113 and the heating element 112 means that there is a set position in the following moving path of the heating element, and the two are aligned when the heating element is in the set position, but it is not limited to the detection electrode 113 and the heating element 112 always maintaining an aligned state. The detection electrode 113 is annular in structure, and the detection electrode 113 is connected to a power supply and has an electric potential. The detection electrode 113 includes at least two independently arranged electrode segments 1131, and the independent electrode segments 1131 are not connected. They have electric potentials respectively and different electrode segments 1131 have a voltage difference. In this embodiment, the equal length of each electrode segment 1131 is taken as an example for explanation.

[0038] Cookware 120 includes a flat bottom surface 121, which is provided with an annular conductive ring 122. A cooking cavity for placing ingredients is located on the top of cookware 120. The conductive ring 122 and the cooking cavity are positioned correspondingly, with the line connecting the center of the conductive ring 122 and the center of the cooking cavity perpendicular to bottom surface 121. Conductive ring 122 is made of a conductive material. When the conductive material contacts electrode segments 1131 of varying lengths, it conducts electricity to form a circuit, thereby triggering the corresponding electrode segment 1131 of detection electrode 113.

[0039] like Figure 1 Figure 2As shown, in some embodiments, the heating assembly 110 further includes a glass plate 118, which is located opposite the area where the heating element 112 is located, and is used to transfer the heat of the heating element 112 to the pot 120. In this embodiment, the glass plate 118 is made of microcrystalline glass.

[0040] like Figure 1 and Figure 2 As shown, in some embodiments, the heating component 110 further includes a control panel 115 , which is used to display the working status and / or working duration of the heating component 110 , and can also be used to adjust the working status of the heating component 110 by touch or button switching.

[0041] In one embodiment, the cooking utensil 100 includes a conductive wire connected to the pot 120 to form a conductive ring 122. The conductive wire is a metal wire with excellent electrical conductivity, flexibility, and weldability, and can be made of a variety of metals, such as common copper, aluminum, silver, and gold. In other embodiments, the conductive ring 122 can also be made of other materials, such as a polymer composite conductive material, without limitation.

[0042] In some embodiments, the pot 120 itself may be made of a conductive material, and its bottom surface 121 may be provided with a protruding annular structure to form a conductive ring 122, without the need for additional conductive wires. For example, the bottom surface 121 of the aluminum die-cast pot 120 may be polished to expose the conductive aluminum.

[0043] like Figures 1 to 3 As shown, Figure 3 (a) is a schematic diagram of the pot when it is centered. Figure 3 (b) is a schematic diagram of the pot after the pot is offset and the base is moved and compensated. In one embodiment, the heating component 110 further includes a bracket 114. In this embodiment, the heating component 110 further includes a bottom plate 116, and the panel 111 covers the surface of the bottom plate 116. The heating element 112 and the bracket 114 are both placed in the placement space enclosed by the bottom plate 116 and the panel 111. Figure 2 As shown, the bracket 114 can be movably arranged relative to the base plate 116 in a direction parallel to the heating surface 1111, and the heating element 112 is fixed to the bracket 114 so that the heating element 112 and the bracket 114 move synchronously, and there is a set position in the moving path of the heating element 112 that is aligned with the detection electrode 113, so as to compensate for the offset between the pot 120 and the heating element 112 by the position movement of the bracket 114, so that the heating element 112 is aligned with the pot 120 after moving with the bracket 114, that is, the heating element 112 and the pot 120 are concentrically arranged to avoid uneven heating of the pot 120 and heat waste of the heating element 112.

[0044] In one embodiment, the setting position is the center of the moving area of ​​the heating element 112. When the heating element 112 is at the center of the moving path, it is aligned with the detection electrode 113. The moving direction of the bracket 114 is the offset direction between the conductive ring 122 and the detection electrode 113, so that the offset directions of the two correspond to the moving direction of the bracket 114. Setting the position to the center can leave a margin for compensation of the movement of the bracket 114 when the cookware 120 is offset in any direction, making the movement of the heating element 112 more flexible.

[0045] In one embodiment, the bracket 114 is movable in at least two directions arranged at an angle to adjust the position of the bracket 114 and, in turn, the position of the heating element 112, thereby compensating for the offset between the pot 120 and the heating element 112. Preferably, the bracket 114 is movable in two directions arranged perpendicularly.

[0046] It can be understood that there are three situations regarding the placement of the cookware 120 and the location of the heating element 112: 1. The conductive ring 122 located in the cookware 120 coincides with the detection electrode 113 located opposite the heating element 112. In this case, the radius r of the conductive ring 122 is equal to the radius R of the detection electrode 113, and the cookware 120 and the heating element 112 are not offset; 2. There is no contact point or one contact point between the conductive ring 122 and the heating element 112. In this case, the conductive ring 122 and the heating element 112 are seriously offset, and the user can visually judge; or the radii of the conductive ring 122 and the heating element 112 are different, and the one with the larger radius is located on the periphery of the one with the smaller radius. In this case, there is no offset or a slight offset between the two, and no adjustment is required; 3. There are two contact points between the conductive ring 122 and the heating element 112. In this case, the cookware 120 and the heating element 112 are offset. This application analyzes the third situation mentioned above. When the two contact points between the conductive ring 122 and the heating element 112 correspond to different electrode segments 1131 respectively, conduction will form a circuit, thereby triggering the electrode segment 1131 corresponding to the detection electrode 113, and locating the position of the contact point according to the position of the electrode segment 1131, and obtaining the angle of the central angle corresponding to the two contact points.

[0047] It should be noted that the presence of two contact points between the conductive ring 122 and the detection electrode 113, corresponding to different electrode segments 1131, is not the only way to determine whether there is an offset between the conductive ring 122 and the detection electrode 113. However, only under this condition can the offset between the conductive ring 122 and the detection electrode 113 be determined and calculated. The presence of one contact point or the absence of a contact point between the conductive ring 122 and the detection electrode 113 can also indicate whether the conductive ring 122 and the detection electrode 113 are offset.

[0048] As can be seen from this, the greater the number of electrode segments 1131, the more accurately the positions of the two contact points can be located, and the more accurate the offset distance and offset angle obtained. When there are only two electrode segments 1131, depending on the positions of the two electrode segments 1131, the contact point can only indicate whether the cookware 120 is offset to the left or right or up or down, but it is not convenient for locating the specific position of the contact point.

[0049] like Figure 4 and Figure 5 As shown, the number of electrode segments 1131 is 4 for schematic illustration, and the four regions divided by the horizontal axis and the vertical axis in the reference plane rectangular coordinate system (Cartesian coordinate system) are referred to as four regions, each region is called a quadrant, and the electrode segments 1131 correspond to different quadrants. Figure 5 As shown, and Figure 5 The directions are described in the perspective of FIG, and are not intended to be limiting. When there are four electrode segments 1131, as shown in FIG. Figure 5 As shown in (a), when the cooker 120 is positioned to the lower left, the electrode segments 1131 corresponding to the first and third quadrants are triggered; Figure 5 As shown in (b), when the pot 120 is tilted upward, the electrode segments 1131 corresponding to the third and fourth quadrants are triggered; Figure 5 As shown in (c), when the cooker 120 is positioned to the upper right, the electrode segments 1131 corresponding to the second and fourth quadrants are triggered; Figure 5 As shown in (d), when the cooker 120 is tilted to the left, the electrode segments 1131 corresponding to the first and fourth quadrants are triggered; Figure 5 As shown in (f), when the pot 120 is tilted to the right, the electrode segments 1131 corresponding to the second and third quadrants are triggered; Figure 5 As shown in (g), when the pot 120 is tilted to the lower left, the electrode segments 1131 corresponding to the second and fourth quadrants are triggered; Figure 5 As shown in (h), when the pot 120 is tilted downward, the electrode segments 1131 corresponding to the first and second quadrants are triggered; Figure 5 As shown in (i), when the cookware 120 is positioned to the lower right, the electrode segments 1131 corresponding to the first and third quadrants are triggered.

[0050] As can be seen, when the cookware 120 deviates downward, upward, left, or right, its deviation direction can be clearly indicated. However, when the cookware 120 is tilted or offset relative to the heating element 112, its deviation direction cannot be accurately determined. In this case, the actual deviation direction can be determined by adjusting the position of the bracket 114 and confirming the change in the offset distance during or after the adjustment. For example, assuming that the electrode segments 1131 corresponding to the second and fourth quadrants are in contact, that is, the cookware 120 may be tilted to the upper right or lower left, the bracket 114 will drive the heating element 112 to move first to the upper right. If the cookware 120 is actually tilted to the upper right, the judgment is correct. The heating element 112 will continuously align with the cookware 120 during the movement, and the power of the heating element 112 will gradually increase, indicating that the judgment is correct. If the cookware 120 is actually tilted to the upper left, the judgment is incorrect. Since the heating element 112 continuously increases the offset of the cookware 120 during the movement, the power of the heating element 112 will gradually decrease, indicating that the judgment is incorrect, and the cookware 120 can then move in the other direction.

[0051] In one embodiment, Figure 6 As shown, the electrode segments 1131 are in a dot shape, and a plurality of electrode segments 1131 are continuously distributed along a ring to form the detection electrode 113, so as to obtain more accurate contact point positioning and calculate more accurate offset distance and offset angle.

[0052] In one embodiment, the diameter of the conductive ring 122 is equal to the diameter of the detection electrode 113. In this case, whether the pot 120 and the heating element 112 are offset can be directly determined by the number of contact points between the conductive ring 122 and the detection element, with higher accuracy.

[0053] In other embodiments, the diameter of the conductive ring 122 may also be different from the diameter of the detection electrode 113. Figure 6 (a) and Figure 6 As shown in (b), the diameter of the conductive ring 122 can be smaller than the diameter of the detection electrode 113. Figure 6 As shown in (a), if the two are not in contact, it is considered that the offset of the pot 120 is not large and no adjustment is performed; Figure 6 As shown in (b), there are two contact points between the two, and the position of the bracket 114 is adjusted according to the position of the contact point, thereby compensating for the offset between the pot 120 and the heating element 112. Figure 6 (c) and Figure 6 As shown in (d), the diameter of the conductive ring 122 can be larger than the diameter of the detection electrode 113. Figure 6 As shown in (c), if the two are not in contact, it is considered that the offset of the pot 120 is not large and no adjustment is made; if Figure 6As shown in (d), there are two contact points between the two, and the position of the bracket 114 is adjusted according to the positions of the contact points to compensate for the offset between the pot 120 and the heating element 112.

[0054] In one embodiment, the bracket 114 is configured to drive the bracket 114 and the heating element 112 to move to compensate for the offset distance Δd when the offset distance Δd between the conductive ring 122 and the detection electrode 113 is not greater than a set distance, wherein the set distance is the maximum movable distance of the bracket 114, thereby avoiding the situation where the heating element 112 and the pot 120 still cannot correspond after the bracket 114 moves, thereby causing uneven heating of the pot 120 and energy waste of the heating element 112.

[0055] In one embodiment, the heating assembly 110 further includes an alarm (not shown), which is communicatively connected to the detection electrode 113 and is configured to be triggered when the offset distance Δd between the conductive ring 122 and the detection electrode 113 exceeds a set distance. In this case, the offset between the conductive ring 122 and the detection electrode 113 is more obvious, and the alarm is triggered. When the offset between the cookware 120 and the heating element 112 is too large, the alarm prompts the user to reposition the cookware 120. The alarm can be provided in the form of voice, light, or other forms, without limitation.

[0056] Combine Figure 7 As shown, for the convenience of explanation, let the center of the detection electrode 113 be O1, the center of the conductive ring 122 be O2, the radius of the conductive ring 122 be r, the radius of the detection electrode 113 be R, the contact points of the detection electrode 113 and the conductive ring 122 be M and N respectively, the angle of the contact point M corresponding to the center angle of the detection electrode 113 is α1, and the angle of the contact point N corresponding to the center angle of the detection electrode 113 is α2, then when α2-α1≤180°, the offset angle Δα between the center O1 of the detection electrode 113 and the center O2 of the conductive ring 122 is α2-α1, however, when α2-α1>180°, the offset angle between the center O1 of the detection electrode 113 and the center O2 of the conductive ring 122 is Δα, and Δα=α2+α1, the offset distance between the center O1 of the detection electrode 113 and the center O2 of the conductive ring 122 is Δd, and

[0057] For ease of calculation, in some embodiments, let the radius of the conductive ring 122 and the radius of the detection electrode 113 be r. In this case, the offset distance between the center O1 of the detection electrode 113 and the center O2 of the conductive ring 122 is

[0058] This application also provides a method for detecting the displacement of a cookware 120, applicable to the cooking appliance 100 described in any of the aforementioned embodiments. The method includes the following steps: S10: Controlling the placement of the cookware 120 on the heating surface 1111 so that the conductive ring 122 and the detection electrode 113 have two contact points. S20: Calculating the displacement angle and displacement distance between the heating element 112 and the cookware 120 based on the contact points between the conductive ring 122 and the detection electrode 113.

[0059] In one embodiment, in step "S10: control the cookware 120 to be placed on the heating surface 1111, and make two contact points between the conductive ring 122 and the detection electrode 113", the following steps are included: S11: control the cookware 120 to be placed on the heating surface 1111, and confirm the number of contact points between the conductive ring 122 and the detection electrode 113; S12: if the number of contact points is less than two, an alarm is given to remind the user to re-place the cookware until the number of contact points is two.

[0060] In one embodiment, in the step "S20: calculating the offset angle and offset distance of the heating element 112 and the pot 120 based on the contact point between the conductive ring 122 and the detection electrode 113", the following steps are included: S21: calculating the offset angle of the heating element 112 and the pot 120 based on the contact point between the conductive ring 122 and the detection electrode 113. S22: If there are at least two possible offset directions for the offset angle, the bracket 114 is controlled to move along one of the possible offset directions, and whether the moving direction is correct is determined based on the power of the heating element 112. S23: If the power of the heating element 112 increases, the moving direction of the bracket 114 is correct; otherwise, the moving direction of the bracket 114 is wrong, and the bracket 114 is controlled to move along another possible offset direction, and whether the moving direction is correct is determined based on the power of the heating element 112, until the moving direction of the bracket 114 is correct. Applicable to the above and Figure 5 The number of electrode segments 1131 shown is relatively small. Figure 5 Four electrode segments 1131 are used as an example, but this is not a limitation. When the number of electrode segments 1131 is other numbers, there may be a situation where the offset angle has at least two possible offset directions, and the offset direction can also be determined according to this method.

[0061] In one embodiment, in step “S20: calculating the offset angle and offset distance of the heating element 112 and the cookware 120 based on the contact points between the conductive ring 122 and the detection electrode 113”, if the angles of the two contact points corresponding to the central angles of the detection electrode 113 are α1 and α2 respectively, then when α2-α1≤180°, the offset angle Δα between the center O1 of the detection electrode 113 and the center O2 of the conductive ring 122 is Δα=α2-α1; when α2-α1>180°, the offset angle Δα between the center O1 of the detection electrode 113 and the center O2 of the conductive ring 122 is Δα=α2+α1.

[0062] In one embodiment, in step S20: calculating the offset angle and offset distance between the heating element 112 and the cookware 120 based on the contact points between the conductive ring 122 and the detection electrode 113, if the radius of the conductive ring 122 is r, the radius of the detection electrode 113 is R, and the angles of the two contact points corresponding to the central angles of the detection electrode 113 are α1 and α2 respectively, then the offset distance between the center O1 of the detection electrode 113 and the center O2 of the conductive ring 122 is

[0063] In one embodiment, the method for detecting the offset of the cookware 120 includes the following steps: S30: determining the size of the offset distance Δd and the maximum movable distance of the bracket 114; if the offset distance Δd is not less than the maximum movable distance of the bracket 114, controlling the bracket 114 to move the offset distance in the offset direction; if the offset distance Δd is greater than the maximum movable distance of the bracket 114, triggering an alarm to prompt the user to replace the cookware 120.

[0064] The cooking utensil 100 provided in the above scheme is provided with a detection electrode 113 arranged in alignment with the heating element 112, and a conductive ring 122 is provided on the bottom surface 121 of the pot 120, so that the position of the contact point between the conductive ring 122 and the detection electrode 113 is detected by the detection electrode 113, and the offset angle and offset distance of the pot 120 relative to the heating element 112 are confirmed, so as to provide a direction and distance for the bracket 114 to drive the heating element 112 to move to compensate for the offset between the pot 120 and the heating element 112, so that the heating element 112 can remain aligned with the pot 120, thereby improving the heating uniformity of the pot 120 and improving the heat utilization rate of the heating element 112.

[0065] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments 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.

[0066] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A cooking utensil, characterized in that: The cooking appliance comprises: A heating assembly comprising a panel and a heating element located below the panel, wherein the panel comprises a heating surface provided with a detection electrode, the detection electrode being aligned with the heating element and having an annular structure, and the detection electrode comprising at least two independently arranged electrode segments; and The cookware comprises a flat bottom surface, the bottom surface being provided with a conductive ring in an annular structure, the conductive ring being made of a conductive material; The detection electrode can detect the position of the contact point between the conductive ring and the detection electrode, so as to confirm the offset angle and offset distance of the cookware relative to the heating element.

2. The cooking appliance according to claim 1, wherein The cooking utensil includes a conductive wire connected to the pot to form the conductive ring.

3. The cooking appliance according to claim 1, wherein The electrode segments are point-shaped, and a plurality of the electrode segments are continuously distributed along a ring to form the detection electrode.

4. The cooking appliance according to claim 1, wherein The diameter of the conductive ring is equal to the diameter of the detection electrode.

5. The cooking appliance according to claim 1, wherein The heating assembly also includes a bracket, and the bracket can be movably arranged relative to the panel in a direction parallel to the heating surface. The heating element is fixed to the bracket to move synchronously with the bracket. There is a set position in the moving path of the heating element that is aligned with the detection electrode.

6. The cooking appliance according to claim 5, characterized in that The bracket is capable of moving in at least two directions arranged at an angle.

7. The cooking appliance according to claim 5 or 6, characterized in that: When the heating element is at the center of the moving path, it is aligned with the detection electrode, and the moving direction of the bracket is the offset direction between the conductive ring and the detection electrode.

8. The cooking appliance according to claim 7, wherein: The bracket is configured to drive the heating element to move to compensate for the offset distance when the offset distance between the conductive ring and the detection electrode is not greater than a set distance, and the set distance is the maximum movable distance of the bracket.

9. The cooking appliance according to claim 8, characterized in that The heating assembly further includes an alarm component, which is communicatively connected to the detection electrode and is configured to be triggered when the offset distance between the conductive ring and the detection electrode is greater than a set distance.

10. A method for detecting a cookware deviation, characterized in that: Applied to the cooking utensil according to any one of claims 1 to 9, the method for detecting pot deviation comprises the following steps: Place the pot on the heating surface so that there are two contact points between the conductive ring and the detection electrode; The offset angle and offset distance of the heating element and the pot are calculated according to the contact point between the conductive ring and the detection electrode.

11. The method for detecting cookware deviation according to claim 10, wherein: The heating assembly of the cooking utensil further includes a bracket, and the bracket is arranged to be movable along an offset angle; the step of "calculating the offset angle and offset distance between the heating element and the pot according to the contact point between the conductive ring and the detection electrode" includes the following steps: Calculate the offset angle of the heating element and the pot according to the contact point between the conductive ring and the detection electrode; If the offset angle has at least two possible offset directions, the bracket is controlled to move along one of the possible offset directions, and whether the moving direction is correct is determined based on the power of the heating element; If the power of the heating element increases, the moving direction of the bracket is correct; otherwise, the moving direction of the bracket is wrong, and the bracket is controlled to move along another possible offset direction, and whether the moving direction is correct is determined according to the power of the heating element until the moving direction of the bracket is correct.

12. The method for detecting cookware deviation according to claim 10, wherein: In the step "calculating the offset angle and offset distance of the heating element and the cookware based on the contact points between the conductive ring and the detection electrode," if the angles of the two contact points corresponding to the central angles of the detection electrodes are α1 and α2, respectively, then when α2-α1≤180°, the offset angle Δα=α2-α1; and when α2-α1>180°, the offset angle Δα=α2+α1.

13. The method for detecting cookware deviation according to claim 10, wherein: In the step "calculating the offset angle and offset distance of the heating element and the cookware based on the contact points between the conductive ring and the detection electrode", if the radius of the conductive ring is r, the radius of the detection electrode is R, and the angles of the two contact points relative to the central angle of the detection electrode are α1 and α2 respectively, then the offset distance is .

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