Cooker body assembly and electromagnetic heating equipment

Abstract

The invention provides a cooker body assembly and electromagnetic heating equipment, and the cooker body assembly comprises a first housing which is provided with an accommodation cavity for accommodating a cooker body; the first heating coil is located on one side of the first shell and away from one side of the containing cavity, the first heating coil comprises at least one pair of first coils and at least one pair of second coils, and the at least one pair of first coils and the at least one pair of second coils are distributed in the circumferential direction of the side wall of the containing cavity; wherein the wire stacking direction of one of the adjacent first coil and second coil faces the accommodating cavity, and the wire stacking direction of the other one of the adjacent first coil and second coil does not face the accommodating cavity.

Description

Technical Field

[0001] The present invention relates to the field of heating technology, in particular to a pot body component and an electromagnetic heating device. Background Art

[0002] Electromagnetic heating has become a relatively mature heating technology at this stage and is widely used in electromagnetic heating equipment such as induction cookers.

[0003] Among them, the working principle of electromagnetic heating is as follows Figure 1 As shown, specifically, the current passing through the coil generates a changing magnetic field, which continuously cuts the iron pot and vessel, causing the vessel to generate eddy currents, such as the eddy current I 流 , in the eddy current I 流 When the flow is through a vessel with internal resistance R, Joule heat Q is generated, Q = I 流 2 Rt, T is the time. Under the action of the Joule heat Q, the pot and utensil heat up rapidly, thereby heating the food.

[0004] An electric rice cooker is an example of a device that uses the electromagnetic heating technology. The rice cooker body assembly has a receiving cavity for receiving a pot body.

[0005] In the related technical solutions, the electromagnetic heating coil is almost wound around the outer surface of the concave accommodating cavity. Due to the limitations of product structure and electrical performance, such as Figure 2 As shown, the electromagnetic heating coil 104' is almost only wound around the bottom area of the circular accommodating cavity. There is a situation where the thermal field at the bottom is a high-temperature area, while the thermal field in the middle and upper parts is seriously low and is a low-temperature area. Specifically, the pot body 102' placed in the accommodating cavity has a high-temperature area and a low-temperature area.

[0006] Based on this, when cooking food or rice, the upper part of the rice is heated unevenly, affecting the taste. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0008] To this end, a first aspect of the present invention is to provide a pot body assembly.

[0009] A second aspect of the present invention provides an electromagnetic heating device.

[0010] In view of this, according to the first aspect of the present invention, the present invention provides a cooker body assembly, comprising: a first housing having a receiving cavity for receiving a cooking pot; a first heating coil located on one side of the first housing and away from the receiving cavity, the first heating coil comprising at least a pair of first coils and at least a pair of second coils, the at least a pair of first coils and the at least a pair of second coils being circumferentially distributed along the side wall of the receiving cavity; wherein, for an adjacent first coil and second coil, the wire lamination direction of one of the coils faces the receiving cavity, and the wire lamination direction of the other coil of the adjacent first coil and second coil does not face the receiving cavity.

[0011] The technical solution of this application proposes a cooker body assembly. In this cooker body assembly, it includes a receiving cavity for receiving a cooking pot and a first heating coil. Among them, the first heating coil includes a pair of first coils arranged in pairs and a pair of second coils arranged in pairs. Among them, the first coils and the second coils are circumferentially distributed along the side wall of the receiving cavity, thereby forming a Halbach array for heating the cooking pot placed in the receiving cavity. During this process, the side wall of the cooking pot can be heated to ensure the cooking effect, thereby eliminating the influence on the cooking result caused by the low-temperature area on the side wall of the cooking pot in the related technical solutions, and reducing the occurrence of cooking failures and other situations caused by uneven heating temperature of ingredients such as rice.

[0012] Specifically, when the first coil faces the receiving cavity, if a current is passed through the first coil at this time, when the end of the first coil close to the receiving cavity is the N pole, the end of the adjacent second coil close to the first coil is the N pole. At this time, the N pole of the first coil and the N pole of the second coil repel each other, so that the magnetic lines of force emitted by the first coil towards the receiving side and the magnetic lines of force generated by the N pole of the second coil rise towards the receiving cavity, so as to increase the magnetic field range generated by the first heating coil, and then cause eddy currents to generate heat on the side wall of the cooking pot.

[0013] During this process, while the magnetic field range increases, the area where eddy currents appear in the cooking pot becomes larger, and then eddy currents can be generated and heated in the area where no heating coil is provided, so as to eliminate the generation of low-temperature areas and ensure the heating effect.

[0014] At the same time, the side of the first coil facing away from the receiving cavity is the S pole, which can attract the N pole of the second coil, thereby suppressing the outward rise of the magnetic lines of force, enabling the magnetic lines of force emitted by the N pole of the second coil to quickly return to the S pole of the first coil, and then forming a closed curve, reducing the heating effect on the metal products outside the cooker body assembly.

[0015] During this process, while reducing the electromagnetic leakage during electromagnetic heating, the heating effect on the metal products outside the cooker body assembly is reduced, thereby reducing the probability of fire occurrence, and thus improving the safety of the cooker body assembly.

[0016] Similarly, when the second coil faces the receiving cavity, its working principle is the same as that when the first coil faces the receiving cavity, and thus will not be elaborated here.

[0017] In some technical solutions, the stacking direction of the wires of the first coil can be understood as follows: along the axial direction of the winding of the first coil, the stacking direction of the wires of the second coil is defined to be the same as that of the first coil, and thus will not be elaborated here.

[0018] In some technical solutions, the stacking direction of the wires of the first coil can be understood as the direction from the S pole to the N pole of the first coil. Similarly, the stacking direction of the wires of the second coil is defined to be the same as that of the first coil, and thus will not be elaborated here.

[0019] In addition, by defining the circumferential distribution along the side wall of the receiving cavity, omnidirectional heating of the pot body can be achieved to ensure the heating effect.

[0020] In some technical solutions, the stacking direction of the wires of the other coil adjacent to the first coil and the second coil is tangential to the receiving cavity.

[0021] In addition, the pot body assembly proposed in this application further has the following additional technical features.

[0022] In some technical solutions, optionally, at least one pair of first coils and at least one pair of second coils are distributed on the same horizontal plane of the receiving cavity.

[0023] In this technical solution, by defining the distribution on the same horizontal plane, the first heating coil can be used to heat the area at the same height position in the pot body, thereby ensuring the heating uniformity.

[0024] In addition, by defining the distribution on the same horizontal plane, the distortion of the magnetic field coverage caused by the misalignment of the first coil and the second coil can be reduced, so as to avoid the problem that the heating effects in the position areas at different heights of the pot body are different, which affects the heating effect.

[0025] During this process, by defining the distribution on the same horizontal plane, the overall heating effect can be ensured.

[0026] In some technical solutions, optionally, the stacking directions of the wires of the paired first coils are the same; and the stacking directions of the wires of the paired second coils are the same.

[0027] In this technical solution, the fact that the wire stacking directions of the paired first coils are the same can be understood as that the first coils are centrosymmetric about the center of the accommodation cavity. Similarly, the second coils are centrosymmetric about the center of the accommodation cavity. During this process, the magnetic field distribution where the accommodation cavity is located can also be made symmetric, so as to achieve controllable planning of the magnetic field distribution.

[0028] Meanwhile, it is also convenient for assembling the first coil and the second coil, thereby reducing the assembly difficulty.

[0029] In some technical solutions, optionally, the wire stacking direction of one of the adjacent first coil and second coil is coplanar with the central axis of the pot body; and / or the wire stacking direction of the other of the adjacent first coil and second coil is parallel to the tangential direction of the side surface of the pot body.

[0030] In this technical solution, the wire stacking directions of the first coil and the second coil are limited.

[0031] By limiting that the wire stacking direction of one of the first coil and the second coil is coplanar with the central axis of the pot body, so that the magnetic field direction inside the coil of the first coil or the second coil is coplanar with the central axis of the pot body. Then, when it is the N pole, the maximum magnetic field intensity can be generated in the pot body, thereby ensuring the heating power.

[0032] Meanwhile, by limiting that the wire stacking direction of the other of the first coil and the second coil is parallel to the tangential direction of the side surface of the pot body, the wire stacking directions of the first coil and the second coil are perpendicular to each other, maximizing the upward degree of the magnetic force lines facing the accommodation cavity side and the degree of suppressing the upward of the magnetic force lines on the side facing away from the magnetic force lines, thereby ensuring the electromagnetic heating power.

[0033] Meanwhile, through the above limitations, the space occupied by the coils can be reduced, and the volume of the pot body assembly can be decreased.

[0034] In some technical solutions, optionally, at least one pair of first coils and at least one pair of second coils are connected in series so that the current flowing through at least one pair of first coils and at least one pair of second coils is the same.

[0035] In this technical solution, the first coil and the second coil are connected in series so that the current flowing through the first coil and the second coil is the same, and then the generated magnetic field intensities are approximately the same, thereby ensuring the uniformity of heating the pot body.

[0036] In some technical solutions, optionally, it further includes: a second heating coil, located on the same side of the first heating coil, and oppositely arranged with respect to the bottom wall and / or at least a part of the side wall of the accommodation cavity.

[0037] In this technical solution, a second heating coil is provided to heat the bottom wall of the pot body or one side of the side wall close to the bottom wall by using the second heating coil.

[0038] During this process, the first heating coil and the second heating coil can be used in cooperation to heat the entire pot body, thereby eliminating the low-temperature area of the pot body and ensuring the heating uniformity of the ingredients in the pot body.

[0039] In some technical solutions, the second heating coil can also be replaced by a heating plate, and the specific solution will not be elaborated here.

[0040] In some technical solutions, optionally, it further includes: the second heating coil is a coil wound by a concentric winding method.

[0041] In this technical solution, by defining that the second heating coil is a coil wound by a concentric winding method, the heating power of the second heating coil can be increased by increasing the number of coils, thereby ensuring the heating effect.

[0042] In some technical solutions, the first housing has a mounting groove, and the mounting groove is arranged in a circumferential coil along the accommodating cavity.

[0043] In this technical solution, the wire can be wound in the mounting groove by a concentric winding method to form the second heating coil.

[0044] In some technical solutions, optionally, it further includes: a second housing for accommodating the first housing, with a gap between the first housing and the second housing, and the first heating coil and the second heating coil are located in the gap.

[0045] In this technical solution, by setting a gap between the first housing and the second housing, the first heating coil and the second heating coil can be hidden in the gap to avoid the exposure of the first heating coil and the second heating coil, thereby reducing the risk of electric shock and improving the electrical safety.

[0046] In some technical solutions, optionally, it further includes: a thermostat disposed between the first housing and the second housing, the first housing has an opening, the opening is communicated with the accommodating cavity, and at least part of the thermostat is located in the opening.

[0047] In this technical solution, by setting the thermostat, while the temperature measurement can be realized based on the thermostat, the control of the first coil and the second coil can also be realized based on the temperature measurement result.

[0048] By providing an opening communicated with the accommodating cavity in the first housing, the thermostat can measure whether the pot body is placed and the temperature of the pot body through the opening, thereby realizing the control of the first coil and the second coil.

[0049] In some technical solutions, optionally, it further includes: a power board assembly disposed between the first housing and the second housing. The power board assembly is connected to the first heating coil and the second heating coil and is used for outputting power supply.

[0050] In this technical solution, by providing the power board assembly, the power supply for the first heating coil and the second heating coil can be realized by using the power board assembly. By disposing it between the first housing and the second housing, the power board assembly can be hidden, reducing the probability of electric leakage and improving the safety of electricity use.

[0051] According to the second aspect of the present invention, the present invention provides an electromagnetic heating device, including: a pot body assembly as described in any one of the above.

[0052] In some technical solutions, optionally, it further includes: a pot body for placing in the accommodating cavity; a lid assembly, the lid assembly is connected to the pot body assembly and is used for opening and closing the accommodating cavity.

[0053] In some technical solutions, optionally, the electromagnetic heating device includes one of the following: an induction cooker, an electric stove, a rice cooker, and an electric pressure cooker.

[0054] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0056] Figure 1 One of the schematic diagrams showing the principle of electromagnetic heating in the related technical solution;

[0057] Figure 2 The schematic diagram showing the high-temperature region and the low-temperature region in the related technical solution;

[0058] Figure 3 The schematic diagram showing the structure of the electromagnetic heating device including the pot body assembly in the embodiment of the present invention;

[0059] Figure 4 One of the schematic diagrams showing the structure of the first coil, the second coil, and the second heating coil in the embodiment of the present invention;

[0060] Figure 5 Another schematic diagram showing the structure of the first coil, the second coil, and the second heating coil in the embodiment of the present invention;

[0061] Figure 6 Still another schematic diagram showing the structure of the first coil, the second coil, and the second heating coil in the embodiment of the present invention;

[0062] Figure 7 Shows the fourth structural schematic diagram of the first coil, the second coil and the second heating coil in the embodiment of the present invention;

[0063] Figure 8 Shows the first schematic diagram of the working principle of the first coil and the second coil in the embodiment of the present invention;

[0064] Figure 9 Shows the second schematic diagram of the working principle of the first coil and the second coil in the embodiment of the present invention;

[0065] Figure 10 Shows the third schematic diagram of the working principle of the first coil and the second coil in the embodiment of the present invention;

[0066] Figure 11 Shows the fourth schematic diagram of the working principle of the first coil and the second coil in the embodiment of the present invention;

[0067] Figure 12 Shows the fifth schematic diagram of the working principle of the first coil and the second coil in the embodiment of the present invention;

[0068] Figure 13 Shows the sixth schematic diagram of the working principle of the first coil and the second coil in the embodiment of the present invention.

[0069] Among them, Figure 2 The corresponding relationship between the reference numerals and the component names in the figure is:

[0070] 102' pot body, 104' heating coil.

[0071] Among them, Figures 3 to 13 The corresponding relationship between the reference numerals and the component names in the figure is:

[0072] 102 first housing, 1022 opening, 104 accommodation cavity, 106 first heating coil, 1062 first coil, 1064 second coil, 108 second heating coil, 110 second housing, 112 thermostat, 114 power board assembly, 200 pot body, 300 cover body assembly. Detailed implementation manners

[0073] In order to be able to more clearly understand the above aspects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0074] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited by the specific embodiments disclosed below.

[0075] In one embodiment of the present application, as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, a cooker body assembly is provided, including: a first housing 102 having a receiving cavity 104 for receiving a pot body 200; a first heating coil 106 located on one side of the first housing 102 and away from the receiving cavity 104, the first heating coil 106 including at least a pair of first coils 1062 and at least a pair of second coils 1064, the at least a pair of first coils 1062 and the at least a pair of second coils 1064 being circumferentially distributed along the side wall of the receiving cavity 104; wherein, the wire layer of one of the adjacent first coil 1062 and second coil 1064 is stacked in a direction towards the receiving cavity 104, and the wire layer of the other of the adjacent first coil 1062 and second coil 1064 is not stacked in a direction towards the receiving cavity 104.

[0076] An embodiment of the present application provides a cooker body assembly. In this cooker body assembly, it includes a receiving cavity 104 for receiving a pot body 200 and a first heating coil 106. Among them, the first heating coil 106 includes a pair of first coils 1062 and a pair of second coils 1064 arranged in pairs. The first coils 1062 and the second coils 1064 are circumferentially distributed along the side wall of the receiving cavity 104, thereby forming a Halbach array to heat the pot body 200 placed in the receiving cavity 104. During this process, the side wall of the pot body 200 can be heated to ensure the cooking effect, thereby eliminating the influence on the cooking result caused by the low-temperature region on the side wall of the pot body 200 in the related embodiments, and reducing the occurrence of cooking failures and other situations caused by uneven heating temperature of ingredients such as rice.

[0077] Specifically, when the first coil 1062 faces the accommodation cavity 104, if a current is passed through the first coil 1062 at this time, when the end of the first coil 1062 close to the accommodation cavity 104 is the N pole, the end of the adjacent second coil 1064 close to the first coil 1062 is the N pole. At this time, the N pole of the first coil 1062 repels the N pole of the second coil 1064, so that the magnetic field lines emitted by the first coil 1062 toward the accommodating side and the magnetic field lines generated by the N pole of the second coil 1064 rise upward in the direction of the accommodation cavity 104, so as to increase the magnetic field range generated by the first heating coil 106, and then cause eddy currents to appear on the side wall of the pot body 200 and generate heat.

[0078] During this process, while the magnetic field range increases, the area where eddy currents appear in the pot body 200 becomes larger. As a result, eddy currents can be generated and heating can be carried out in the area where no heating coil is provided, thereby eliminating the generation of low-temperature areas and ensuring the heating effect.

[0079] For example, when the coil is not designed at the edge of the inner pot, the heating effect at the edge of the inner pot can be achieved through this combination of coils.

[0080] At the same time, the side of the first coil 1062 facing away from the accommodation cavity 104 is the S pole, which can attract the N pole of the second coil 1064, thereby suppressing the outward rise of the magnetic field lines, enabling the magnetic field lines emitted by the N pole of the second coil 1064 to quickly return to the S pole of the first coil 1062, and then forming a closed curve, reducing the heating effect on the metal products outside the pot body assembly.

[0081] During this process, while reducing the electromagnetic leakage during electromagnetic heating, the heating effect on the metal products outside the pot body assembly is reduced, thereby reducing the probability of fire and improving the safety of the pot body assembly.

[0082] Similarly, when the second coil 1064 faces the accommodation cavity 104, its working principle is the same as that when the first coil 1062 faces the accommodation cavity 104, and will not be elaborated here.

[0083] In some embodiments, the stacking direction of the wire of the first coil 1062 can be understood as that along the axial direction of the winding of the first coil 1062, the stacking direction of the wire of the second coil 1064 is defined the same as that of the first coil 1062, and will not be elaborated here.

[0084] In some embodiments, the stacking direction of the wire of the first coil 1062 can be understood as the direction from the S pole to the N pole of the first coil 1062. Similarly, the stacking direction of the wire of the second coil 1064 is defined the same as that of the first coil 1062, and will not be elaborated here.

[0085] In addition, by being circumferentially distributed along the side wall of the accommodation cavity 104, all-round heating of the pot body 200 can be achieved to ensure the heating effect.

[0086] In some embodiments, optionally, the direction in which the wire layers of the other coil among the adjacent first coil 1062 and second coil 1064 are stacked is tangential to the accommodation cavity 104.

[0087] In some embodiments, optionally, at least one pair of first coils 1062 and at least one pair of second coils 1064 are distributed on the same horizontal plane of the accommodation cavity 104.

[0088] In this embodiment, by being distributed on the same horizontal plane, the area at the same height position in the pot body 200 can be heated by the first heating coil 106, thereby ensuring the heating uniformity.

[0089] In addition, by being distributed on the same horizontal plane, the distortion of the magnetic field coverage caused by the misalignment of the first coil 1062 and the second coil 1064 can be reduced, so as to avoid the problem that the heating effects of different height position areas of the pot body 200 are different, which affects the heating effect.

[0090] In this process, by being distributed on the same horizontal plane, the overall heating effect can be ensured.

[0091] In some embodiments, optionally, the wire layers of the paired first coils 1062 are stacked in the same direction; and the wire layers of the paired second coils 1064 are stacked in the same direction.

[0092] In this embodiment, the fact that the wire layers of the paired first coils 1062 are stacked in the same direction can be understood as that the first coils 1062 are centrosymmetric about the center of the accommodation cavity 104. Similarly, the second coils 1064 are centrosymmetric about the center of the accommodation cavity 104. In this process, the magnetic field distribution where the accommodation cavity 104 is located can also be symmetrically distributed, so as to achieve the controllable planning of the magnetic field distribution.

[0093] Meanwhile, it is also convenient for assembling the first coil 1062 and the second coil 1064, thereby reducing the assembly difficulty.

[0094] In some embodiments, optionally, the direction in which the wire layers of one coil among the adjacent first coil 1062 and second coil 1064 are stacked is coplanar with the central axis of the pot body 200; and / or the direction in which the wire layers of the other coil among the adjacent first coil 1062 and second coil 1064 are stacked is parallel to the tangential direction of the side surface of the pot body 200.

[0095] In this embodiment, the directions of the wire layers of the first coil 1062 and the second coil 1064 are defined.

[0096] By defining that the lamination direction of the wire of one of the first coil 1062 and the second coil 1064 is coplanar with the central axis of the pot body 200, so that the magnetic field direction inside the coil of the first coil 1062 or the second coil 1064 is coplanar with the central axis of the pot body 200. Furthermore, when it is in the N - pole case, the maximum magnetic field intensity can be generated inside the pot body 200, thereby ensuring the heating power.

[0097] Meanwhile, by defining that the lamination direction of the wire of the other coil among the first coil 1062 and the second coil 1064 is parallel to the tangential direction of the side surface of the pot body 200, the lamination directions of the wires of the first coil 1062 and the second coil 1064 are perpendicular to each other, maximizing the upward degree of the magnetic lines of force towards the accommodating cavity 104 side and the degree of suppressing the upward of the magnetic lines of force on the side opposite to the magnetic lines of force, thereby ensuring the electromagnetic heating power.

[0098] Meanwhile, through the above - mentioned definition, the space occupied by the coil can be reduced, and the volume of the pot body assembly can be decreased.

[0099] In some embodiments, optionally, at least one pair of the first coils 1062 and at least one pair of the second coils 1064 are connected in series so that the current flowing through at least one pair of the first coils 1062 and at least one pair of the second coils 1064 is the same.

[0100] In this embodiment, the first coil 1062 and the second coil 1064 are connected in series so that the current flowing through the first coil 1062 and the second coil 1064 is the same, and thus the generated magnetic field intensities are approximately the same, thereby ensuring the uniformity of heating the pot body 200.

[0101] In some embodiments, optionally, it further includes: a second heating coil 108, located on the same side as the first heating coil 106, and disposed opposite to the bottom wall and / or at least a part of the side wall of the accommodating cavity 104.

[0102] In this embodiment, by providing the second heating coil 108, the bottom wall of the pot body 200 or the side close to the bottom wall of the side wall can be heated by the second heating coil 108.

[0103] During this process, the first heating coil 106 and the second heating coil 108 can be used in cooperation to achieve the overall heating of the pot body 200, thereby eliminating the low - temperature area of the pot body 200 and ensuring the uniformity of heating the ingredients located inside the pot body 200.

[0104] In some embodiments, the second heating coil 108 can also be replaced by a heating plate, and the specific scheme is not elaborated herein.

[0105] In some embodiments, optionally, it further includes: the second heating coil 108 is a coil wound by a concentric winding method.

[0106] In this embodiment, by defining that the second heating coil 108 is a coil wound by a concentric winding method, the heating power of the second heating coil 108 is increased by increasing the number of coils, thereby ensuring the heating effect.

[0107] In some embodiments, such as Figure 4 and Figure 5 shown, the first housing 102 has a mounting groove, wherein the mounting groove is arranged in a circumferentially coiled manner along the accommodating cavity 104.

[0108] In this embodiment, the wire can be wound in the mounting groove by a concentric winding method to form the second heating coil 108.

[0109] In some embodiments, such as Figure 8 、 Figure 9 and Figure 10 shown, in the case where the first coil 1062 and the second coil 1064 are respectively a pair, the schematic diagram of the working principle.

[0110] In some embodiments, such as Figure 11 、 Figure 12 and Figure 13 shown, in the case where the first coil 1062 and the second coil 1064 are respectively two pairs, the schematic diagram of the working principle.

[0111] In some embodiments, optionally, it further includes: a second housing 110 for accommodating the first housing 102, with a gap between the first housing 102 and the second housing 110, and the first heating coil 106 and the second heating coil 108 are located in the gap.

[0112] In this embodiment, by setting a gap between the first housing 102 and the second housing 110, the first heating coil 106 and the second heating coil 108 can be hidden in the gap to avoid the exposure of the first heating coil 106 and the second heating coil 108, thereby reducing the risk of electric shock and improving the electrical safety.

[0113] In some embodiments, optionally, it further includes: a thermostat 112 disposed between the first housing 102 and the second housing 110. The first housing 102 has an opening 1022, and the opening 1022 is communicated with the accommodating cavity 104, and at least part of the thermostat 112 is located in the opening 1022.

[0114] In this embodiment, by setting the thermostat 112, while the temperature measurement can be realized based on the thermostat 112, the control of the first coil 1062 and the second coil 1064 can also be realized based on the temperature measurement result.

[0115] By providing an opening 1022 in the first housing 102 that communicates with the accommodation cavity 104, the thermostat 112 can determine whether the pot body 200 is placed and measure the temperature of the pot body 200 through the opening 1022, thereby realizing the control of the first coil 1062 and the second coil 1064.

[0116] In some embodiments, optionally, it further includes: a power board assembly 114, disposed between the first housing 102 and the second housing 110. The power board assembly 114 is connected to the first heating coil 106 and the second heating coil 108 and is used to output power supply.

[0117] In this embodiment, by providing the power board assembly 114, the power supply for the first heating coil 106 and the second heating coil 108 can be realized by using the power board assembly 114. By disposing it between the first housing 102 and the second housing 110, the power board assembly 114 can be hidden, reducing the probability of electric leakage and improving the safety of power use.

[0118] In some embodiments, the present invention provides an electromagnetic heating device, including: a pot body assembly as described in any one of the above.

[0119] In some embodiments, optionally, it further includes: a pot body 200 for placing in the accommodation cavity 104; a lid assembly 300, the lid assembly 300 is connected to the pot body assembly and is used to open and close the accommodation cavity 104.

[0120] In some embodiments, optionally, the electromagnetic heating device includes one of the following: an induction cooker, an electric stove, a rice cooker, and an electric pressure cooker.

[0121] The terms "first" and "second" in the description and claims of this application may explicitly or implicitly include one or more of such features. In the textual description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more. Additionally, "and / or" in the description and claims means at least one of the connected objects. The character " / ", generally represents an "or" relationship between the associated objects before and after.

[0122] In the claims, the specification and the drawings of the present invention, the term "a plurality of" means two or more, unless otherwise expressly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and making the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operate in the specific orientation. Therefore, these descriptions should not be construed as limiting the present invention; terms such as "connected", "installed", "fixed", etc. should all be understood in a broad sense. For example, "connected" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0123] In the claims, the specification and the drawings of the present invention, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the specification and the drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0124] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pot body assembly, characterized in that, Comprising: A first housing having a receiving cavity for receiving a pot body; A first heating coil located on one side of the first housing and away from the side of the receiving cavity. The first heating coil includes at least a pair of first coils and at least a pair of second coils, and at least a pair of the first coils and at least a pair of the second coils are circumferentially distributed along the side wall of the receiving cavity; Wherein, the wire lamination direction of one of the adjacent first coil and the second coil faces the receiving cavity, and the wire lamination direction of the other of the adjacent first coil and the second coil does not face the receiving cavity.

2. The pot body assembly according to claim 1, characterized in that, At least a pair of the first coils and at least a pair of the second coils are distributed on the same horizontal plane of the receiving cavity.

3. The pot body assembly according to claim 1, characterized in that, The wire lamination directions of the paired first coils are the same; and The wire lamination directions of the paired second coils are the same.

4. The pot body assembly according to claim 1, wherein The wire lamination direction of one of the adjacent first coil and the second coil is coplanar with the central axis of the pot body; and / or The wire lamination direction of the other of the adjacent first coil and the second coil is parallel to the tangent of the side surface of the pot body.

5. The pot body assembly according to claim 1, wherein, At least a pair of the first coils and at least a pair of the second coils are connected in series so that the current flowing through at least a pair of the first coils and at least a pair of the second coils is the same.

6. The pot body assembly according to any one of claims 1 to 5, characterized in that, Further comprising: A second heating coil located on the same side as the first heating coil and oppositely disposed with respect to the bottom wall and / or at least a part of the side wall of the receiving cavity.

7. The pot body assembly according to claim 6, characterized in that The second heating coil is a coil wound by a concentric winding method.

8. The pot body assembly according to claim 6, characterized in that, Further comprising: A second housing for receiving the first housing, with a gap between the first housing and the second housing, and the first heating coil and the second heating coil are located in the gap.

9. The pot body assembly according to claim 8, wherein, Further comprising: A thermostat disposed between the first housing and the second housing. The first housing has an opening communicating with the receiving cavity, and at least a part of the thermostat is located in the opening.

10. The pot body assembly according to claim 8, wherein, Further comprising: A power board assembly disposed between the first housing and the second housing. The power board assembly is connected to the first heating coil and the second heating coil for outputting power supply.

11. An electromagnetic heating device, characterized in that, Comprising: The pot body assembly according to any one of claims 1 to 10.

12. The electromagnetic heating device according to claim 11, wherein, Further comprising: A pot body for placing in the receiving cavity; A lid assembly connected to the pot body assembly for opening and closing the receiving cavity.

13. The electromagnetic heating device according to claim 11 or 12, characterized in that, The electromagnetic heating device includes one of the following: An induction cooker, an electric stove, a rice cooker, and an electric pressure cooker.

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