Cooking utensil and cookware deviation detection method

Abstract

The invention relates to a cooking utensil and a cookware deviation detection method. The cooking utensil comprises a heating assembly and a cookware. The heating assembly comprises a panel and a heating piece located below the panel, the panel comprises a heating surface provided with a detection electrode, the detection electrode is aligned to the heating piece, the detection electrode is of an annular structure, and the detection electrode comprises at least two independently-arranged electrode sections; the cookware comprises a bottom face arranged in a plane mode, a conducting ring of an annular structure is arranged on the bottom face, and the conducting ring is made of conducting materials. According to the scheme, the position of the contact point of the conducting ring and the detection electrode is detected through the detection electrode, the deviation angle and the deviation distance of the cooker relative to the heating piece are determined, the heating piece can be conveniently kept to be centered with the cooker, and therefore the heating uniformity of the cooker is improved, and the heat utilization rate of the heating piece is increased.

Description

Technical Field

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

[0002] For example, induction cookers are cooking devices with a flat surface that carries the pot. Since the flat surface does not constrain the pot body, it is easy for the pot body and the heating element inside the cooking device to be offset during use, that is, the placement of the pot body is not concentric with the heating element, resulting in the cooking device The heating center of the pot body is offset, the local heating is uneven, and the taste of the cooked food is affected. It will 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 cooking utensil and pot deviation detection method to address the problem of pot deviation in cooking equipment.

[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 comprises a heating surface provided with a detection electrode, the detection electrode is aligned with the heating element, and the detection electrode is in an annular structure, the detection electrode comprises at least two independently arranged electrode segments; the pot comprises a bottom surface arranged in a plane, the bottom surface is provided with a conductive ring in an annular structure, and the conductive ring is made of a conductive material.

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

[0006] In one embodiment, the electrode segments are in a dot shape, and a plurality of the electrode segments are continuously distributed along a ring to form the detection electrode.

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

[0008] In one embodiment, the heating component also 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 of the embodiments, the bracket is capable of moving in at least two directions arranged at an angle.

[0010] In one of the embodiments, 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 of the embodiments, 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 a cooker offset is applied to a cooking utensil as described in any of the above embodiments, and the method comprises the following steps: controlling the cooker 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 of the heating element and the cooker based on the contact points between the conductive ring and the detection electrode.

[0014] In one of the embodiments, the heating component of the cooking utensil also includes a bracket, and the bracket can be movably arranged along an offset angle; in the step of "calculating the offset angle and offset distance of the heating element and the pot according to 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 according to 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 according to 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 according to the power of the heating element, until the moving direction of the bracket is correct.

[0015] In one of the embodiments, 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 according to 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 of the cookware and the heating element, so that the heating element can be kept 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 It 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, wherein: Figure 3 (a) is a schematic diagram of the pot being centered. Figure 3 (b) is a schematic diagram of the pot after the pot is offset and the base moves to compensate.

[0022] Figure 4 It is a top view of a heating component in a cooking appliance in one 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 biased to the lower left. Figure 5 (b) is a schematic diagram when the conductive ring is biased upward. Figure 5 (c) is a schematic diagram of the conductive ring when it is biased to the upper right. Figure 5 (d) is a schematic diagram when the conductive ring is biased 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 when the conductive ring is tilted to the right. Figure 5 (g) is a schematic diagram of the conductive ring when it is biased 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 showing that the diameter of the conductive ring is smaller than the diameter of the detection electrode and there is no contact. Figure 6 (b) is a schematic diagram showing that the diameter of the conductive ring is smaller than the diameter of the detection electrode and they are in contact. Figure 6 (c) is a schematic diagram showing that the diameter of the conductive ring is larger than the diameter of the detection electrode and there is 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 there is no 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 board; 118, glass plate; 120, pot; 121, bottom surface; 122, conductive ring. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present 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 the present 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 the present application.

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

[0031] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it 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. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in 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 a central 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 a central element at the same time. 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 implementation method.

[0034] See also Figure 1 , Figure 1 FIG. 1 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 device 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] Combination 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 board 117, and the heating element 112 is electrically connected to the power board 117, so that the power board 117 supplies power to the heating element 112. In this embodiment, the heating element 112 is an annular structure, and in other embodiments, the heating element may also be an electric ceramic heater or a full-surface thick film heater, or other heating schemes that have not yet been identified and subsequent technical developments may exist with non-annular structures, which are not limited thereto.

[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 the alignment 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, and 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] The pot 120 includes a bottom surface 121 arranged in a plane, a conductive ring 122 in an annular structure is arranged on the bottom surface 121, a cooking cavity for placing food is arranged on the top of the pot 120, the conductive ring 122 and the cooking cavity are located in corresponding positions, and a line connecting the center of the conductive ring 122 and the center of the cooking cavity is arranged perpendicular to the bottom surface 121. The conductive ring 122 is made of conductive material, and when the conductive material contacts the electrode segments 1131 with different amounts, it conducts electricity to form a circuit, thereby triggering the electrode segment 1131 corresponding to the 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 in 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 also includes a control panel 115, which is used to display the working status and / or working time of the heating component 110, and can also be used to adjust the working status of the heating component 110 by touch or key switching.

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

[0042] In some embodiments, the pot 120 itself is made of conductive material, and its bottom surface 121 is provided with an annular structure to form a conductive ring 122, and it is not necessary to add conductive wires to form the conductive ring 122. For example, the bottom surface 121 of the aluminum die-cast pot 120 is polished to expose the conductive aluminum material.

[0043] like Figures 1 to 3 As shown, Figure 3 (a) is a schematic diagram of the pot being 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 that the offset between the cookware 120 and the heating element 112 can be compensated by the position movement of the bracket 114, so that the heating element 112 is aligned with the cookware 120 after moving with the bracket 114, that is, the heating element 112 and the cookware 120 are concentrically arranged, so as to avoid uneven heating of the cookware 120 and heat waste of the heating element 112.

[0044] In one of the embodiments, the position is set to 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. The setting 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, so that the movement of the heating element 112 is more flexible.

[0045] In one embodiment, the support 114 can be moved in at least two directions arranged at an angle to adjust the position of the support 114, thereby adjusting the position of the heating element 112, thereby compensating for the offset between the pot 120 and the heating element 112. Preferably, the support 114 is movably arranged in two directions arranged vertically.

[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 to 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 alignment of the cookware 120 and the heating element 112 is 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 a larger radius is located on the periphery of the one with a smaller radius. In this case, there is no or 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. The third situation mentioned above is analyzed in the present application. 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, thereby obtaining the angle of the central angle corresponding to the two contact points.

[0047] It should be noted that it is not only when there are two contact points between the conductive ring 122 and the detection electrode 113 and they correspond to different electrode segments 1131 that it is possible to determine whether there is a deviation between the conductive ring 122 and the detection electrode 113, but only under this condition can the deviation between the conductive ring 122 and the detection electrode 113 be known and calculated. When there is one contact point or no contact point between the conductive ring 122 and the detection electrode 113, it can also show whether the conductive ring 122 and the detection electrode 113 are offset.

[0048] It can be seen that the more electrode segments 1131 there are, the more accurate the position of the two contact points is, and the more accurate the offset distance and offset angle are. When there are two electrode segments 1131, according to the positions of the two electrode segments 1131, the contact point can only indicate the situation that the cookware 120 is offset to the left or right or up or down, but it is not convenient to locate 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, and each region is called a quadrant. At this time, the electrode segments 1131 correspond to different quadrants. Figure 5 As shown, and Figure 5 The directions are described from the perspective of FIG. 1 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 pot 120 is tilted 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 pot 120 is tilted 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 cooker 120 is located at the lower right, the electrode segments 1131 corresponding to the first and third quadrants are triggered.

[0050] It can be seen that when the pot 120 is tilted downward, upward, leftward, or rightward, its offset direction can be clearly indicated. However, when the pot 120 is tilted and offset relative to the heating element 112, its offset direction cannot be accurately located. At this time, the actual offset direction can be confirmed 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 detected to be in contact, that is, the pot 120 may be tilted to the upper right or lower left, at this time, the bracket 114 drives the heating element 112 to move to the upper right first. If the pot 120 is actually tilted to the upper right, that is, the judgment is correct, then the heating element 112 is constantly aligned with the pot 120 during the movement, so the power of the heating element 112 will gradually increase, so that the judgment is correct; if the pot 120 is actually tilted to the upper left, that is, the judgment is wrong, because the heating element 112 constantly increases the offset of the pot 120 during the movement, the power of the heating element 112 will gradually decrease, so that the judgment is wrong, and then move to another direction.

[0051] In one embodiment, if Figure 6 As shown, the electrode segment 1131 is in a dot shape, and a plurality of electrode segments 1131 are continuously distributed along a ring to form a detection electrode 113, so as to obtain more accurate contact point positioning and calculate a 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, it is possible to directly determine whether the pot 120 and the heating element 112 are offset 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 points, so as to compensate 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 performed; 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, so as to avoid uneven heating of the pot 120 and energy waste of the heating element 112 due to the lack of correspondence between the heating element 112 and the pot 120 after the bracket 114 moves.

[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 used to be triggered when the offset distance Δd between the conductive ring 122 and the detection electrode 113 is greater than a set distance. At this time, the offset between the conductive ring 122 and the detection electrode 113 is more obvious, and the alarm is triggered, so that when the offset between the pot 120 and the heating element 112 is too large, the user is prompted to re-place the pot 120 through the alarm. The prompt form of the alarm can be voice / light or other forms, which are not limited.

[0056] Combination 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, and 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 are 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, the radius of the conductive ring 122 and the radius of the detection electrode 113 are both 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] The present application also provides a method for detecting the deviation of a pot 120, which is applied to a cooking utensil 100 in any of the above embodiments. The method for detecting the deviation of a pot 120 includes the following steps: S10: Control the pot 120 to be placed on the heating surface 1111, so that there are two contact points between the conductive ring 122 and the detection electrode 113. S20: Calculate the deviation angle and deviation distance of the heating element 112 and the pot 120 according to the contact points between the conductive ring 122 and the detection electrode 113.

[0059] In one of the embodiments, in the step “S10: control the pot 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 pot 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 to re-place it until the number of contact points is two.

[0060] In one of the embodiments, in the step "S20: calculating the offset angle and offset distance of the heating element 112 and the cooker 120 according to 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 cooker 120 according to 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, control the bracket 114 to move along one of the possible offset directions, and determine whether the moving direction is correct according to 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, control the bracket 114 to move along another possible offset direction, and determine whether the moving direction is correct according to 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 of the embodiments, in step “S20: calculating the offset angle and offset distance of the heating element 112 and the cooker 120 according to the contact points between the conductive ring 122 and the detection electrode 113”, if the angles of the two contact points corresponding to the center 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 α2-α1, and 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.

[0062] In one embodiment, in step “S20: calculating the offset angle and offset distance of the heating element 112 and the cookware 120 according to the contact point 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 center angle of the detection electrode 113 corresponding to the two contact points 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 moving 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 moving distance of the bracket 114, triggering an alarm to prompt the user to re-place 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 of 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached 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 is aligned with the heating element, and the detection electrode is in a ring structure, and the detection electrode comprises at least two independently arranged electrode segments; and The cooker comprises a bottom surface arranged in a plane. The bottom surface is provided with a conductive ring in an annular structure. The conductive ring is made of conductive material.

2. The cooking device according to claim 1, characterized in that: The cooking utensil includes a conductive wire connected to the pot to form the conductive ring.

3. The cooking device according to claim 1, characterized in that: The electrode segments are in a dot shape, and a plurality of the electrode segments are continuously distributed along a ring to form the detection electrode.

4. The cooking device according to claim 1, characterized in that: The diameter of the conductive ring is equal to the diameter of the detection electrode.

5. The cooking device according to claim 1, characterized in that: 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 device 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 device 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 device according to claim 7, characterized in that: 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 device according to claim 8, characterized in that: The heating assembly further comprises 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 as claimed in any one of claims 1 to 9, the method for detecting the deviation of a pot comprises the following steps: The cookware is placed 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 the deviation of a cookware according to claim 10, characterized in that: The heating assembly of the cooking utensil further comprises 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 according to the contact point between the conductive ring and the detection electrode", the following steps are included: 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 support is controlled to move along one of the possible offset directions, and whether the moving direction is correct is determined according to 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 based on the power of the heating element until the moving direction of the bracket is correct.

12. The method for detecting the deviation of a cookware according to claim 10, characterized in that: 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.

13. The method for detecting the deviation of a cookware according to claim 10, characterized in that: In the step "calculating the offset angle and offset distance of the heating element and the cookware according to 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

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