Electromagnetic heating cooking appliance

Abstract

An electromagnetic heating cooking appliance (100; 300; 400; 500; 600; 700), comprising: a coil assembly (170; 370; 470; 570; 670) having a central axis (PA) of the coil assembly, wherein the coil assembly comprises at least one disc-shaped winding (182; 382) for generating an alternating magnetic field after being powered on and configured to enable the magnetic field strength of the alternating magnetic field to be distributed non-uniformly in a circumferential direction of the coil assembly (170; 370; 470; 570; 670); and a cooking container (30) for containing food materials and having a central axis (P3) of the cooking container, wherein the cooking container comprises a ferromagnetic material which is generally in the shape of a revolving body using the central axis (P3) of the cooking container as an axis, the cooking container is arranged in a magnetic induction area of the coil assembly (170; 370; 470; 570; 670) in such a way that the cooking container can be separated from the coil assembly (170; 370; 470; 570; 670), and the central axis (P3) of the cooking container substantially coincides with the central axis (PA) of the coil assembly. The cooking appliance (100; 300; 400; 500; 600; 700) is configured such that the cooking container (30) can rotate relative to the coil assembly (170; 370; 470; 570; 670) about the central axis (P3) of the cooking container, or at least part of the coil assembly (170; 370; 470; 570; 670) can rotate relative to the cooking container (30) about the central axis (PA) of the coil assembly.

Description

[0001]This application relates to the field of cooking appliances, specifically to an electromagnetic heating cooking appliance. Background: To achieve a three-dimensional heating effect for ingredients and a complex, intense convection heating effect during cooking, existing IH rice cookers employ multiple independently controlled coils on a coiling rack. Independently controlled heating of the coils in different locations allows the positions of the hot and cold zones within the pot to be variable. This allows for different convection directions between the hot and cold zones during different cooking periods, thereby generating multiple states of heat convection and achieving a complex, intense convection heating effect within the inner pot. The installation of multiple independently heated coils complicates coil arrangement and winding methods, requiring sophisticated winding techniques. Furthermore, the magnetic strips and magnetic rack structures are complex, making assembly difficult and overall costs high. Furthermore, to achieve a complex, intense convection heating effect, multiple sets of independently controlled coils require multiple independent power supply control modules, which increases electrical control costs. Furthermore, the coiled wire heating position is fixed, limiting the heating area and resulting in suboptimal rice cooking performance. Therefore, an electromagnetic heating cooking appliance is needed to at least partially address the above issues. This Summary introduces a series of simplified concepts, which will be further explained in the Detailed Description. This Summary is not intended to define the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection for the claimed technical solution.To at least partially address the above-mentioned problems, the present application provides an electromagnetic heating cooking appliance, comprising: a wire reel assembly, the wire reel assembly including at least one coiled wire, the coiled wire configured to generate an alternating magnetic field when energized; the wire reel assembly having a central axis, the wire reel assembly configured such that the magnetic field strength of the alternating magnetic field is non-uniformly distributed along the circumference of the wire reel assembly; and a cooking container for holding food, the cooking container having a central axis, the cooking container comprising a ferromagnetic material, and generally in the shape of a solid of revolution with the central axis of the cooking container as its axis; the cooking container and the wire reel assembly being detachably disposed within a magnetically inductive region of the wire reel assembly, the central axis of the cooking container substantially coinciding with the central axis of the wire reel assembly; wherein the electromagnetic heating cooking appliance is configured such that the cooking container is rotatable relative to the wire reel assembly about the central axis of the cooking container, or at least a portion of the wire reel assembly is rotatable relative to the cooking container about the central axis of the cooking container. According to the present application, the wire reel assembly can provide a circumferentially non-uniformly distributed magnetic field, which rotates relative to the cooking container. This causes the heated portion of the cooking container to rotate relative to the container, resulting in uniform heating of the cooking container through rotational heating. Simultaneously, the convection direction within the cooking container rotates, allowing the ingredients to tumble evenly and thoroughly, improving cooking quality. Optionally, the wire reel assembly includes one coiled wire, the winding center of which is offset from the central axis of the wire reel assembly; or the wire reel assembly includes at least two coiled wires, all of which are spaced apart circumferentially around the wire reel assembly. According to the present application, the non-uniformly distributed magnetic field is provided by offsetting the winding centers of the coiled wires from the central axis of the wire reel assembly. The spacing of multiple coiled wires can avoid electromagnetic self-interference between the coiled wires, as well as problems such as high back pressure, low inductance, low heating power, large stored current, and irregular heating waveforms.Optionally, the wire reel assembly further includes a wire coiling rack, disposed on one side of the cooking container. The wire coiling rack is configured to rotate about the central axis of the wire reel assembly, with the coiled wire mounted on the wire coiling rack. According to the present application, the coiled wire is mounted on the wire coiling rack, and rotation of the wire coiling rack causes the magnetic field to rotate. Optionally, the coiled wire is mounted on the wire coiling rack in a coiled shape. According to the present application, the coiled wire is wound in a coiled shape, which can increase the heating surface area of ​​the cooking container. Optionally, the distance between the coiled wire and the cooking container is 3 mm to 30 mm. According to the present application, maintaining a distance between the coiled wire and the cooking container of 3 mm and 30 mm can address issues such as the magnetic field generated by the coiled wire having a limited coverage area within the cooking container and insufficient heat output due to a large distance. It can also address issues such as the high heat generation and increased energy consumption caused by a small distance between the coiled wire and the cooking container. Optionally, the cable drum assembly further includes a magnetic conductive member extending at least partially along the magnetic lines of force of the alternating magnetic field. According to the present application, the magnetic conductive member can focus the magnetic lines of force of the magnetic field, thereby preventing energy loss. Optionally, the coiled wire is coiled around the central axis of the cable drum assembly and forms a radially symmetrical shape about the central axis of the cable drum assembly. Furthermore, the cable drum assembly further includes a drum body, comprising: a drum body having a geometric central axis, which is the central axis of the cable drum assembly; the drum body being rotatable relative to the coiled wire about the central axis of the cable drum assembly; and at least one first region and at least one second region, the first and second regions being alternately arranged along the circumference of the drum body. The first region comprises a different medium from the drum body, such that the magnetic field strength of the alternating magnetic field in the first region differs from the magnetic field strength in the second region. According to the present application, the winding center of the disc-shaped winding coincides with the central axis of the coil assembly, and the non-uniform distribution of the magnetic field along the circumference is achieved through the non-uniform structure of the coil body along the circumference.Optionally, the wire reel assembly further includes a wire coiling rack, which is positioned on a side of the cooking container. The coiled wire is wound around the central axis of the wire reel assembly on the surface of the wire coiling rack, and the reel body is configured to rotate relative to the wire coiling rack around the central axis of the reel assembly. According to the present application, the wire coiling rack supports the coiled wire. Optionally, the reel body is made of a metal material with a magnetic permeability of 10 B / H or less, and the first region includes at least one opening for allowing magnetic lines of force of the alternating magnetic field to pass through. According to the present application, the reel body forms a non-uniformly distributed magnetic field by allowing magnetic lines of force to pass through a portion of its area. Optionally, the distance between the reel body and the coiled wire is 3.5 mm to 10 mm, and / or the thickness of the reel body is 0.4 mm to 2 mm. According to the present application, the distance between the reel body and the coiled wire ensures that a sufficient number of magnetic lines of force pass through the reel body, and the thickness of the reel body can be relatively thin to save costs. Optionally, the area of ​​a single opening is 28 mm2 to 5024 mm2. 2and / or the area of ​​all the openings accounts for 10% to 70% of the area of ​​the disk body. According to the present application, the openings in the disk body can be flexibly arranged. Optionally, the disk body is made of a first material, and the first region is provided with at least one magnetic flux convergent member, wherein the magnetic flux convergent member comprises a second material different from the first material. According to the present application, the disk body achieves a non-uniform magnetic field distribution through the non-uniform distribution of materials. Optionally, the first material is a non-magnetic material or a metal with a magnetic permeability of less than or equal to 10 B / H, and the second material is a metal with a magnetic permeability of greater than or equal to 100 B / H. According to the present application, the disk body achieves a non-uniform magnetic field distribution through the different magnetic permeabilities of the materials. Optionally, the magnetic flux convergent member is connected to the disk body via at least one of the following connection structures: the magnetic flux convergent member is embedded in the disk body, the magnetic flux convergent member is attached to the surface of the disk body, or the magnetic flux convergent member is snap-connected to the disk body. According to the present application, the magnetic flux convergent member can be flexibly arranged. Optionally, the distance between the magnetic flux gathering member and the disc winding is 1 mm to 15 mm; and / or the thickness of the magnetic flux gathering member is 2 mm to 10 mm. According to the present application, the distance between the magnetic flux gathering member and the disc winding can be flexibly set, and the thickness of the magnetic flux gathering member can be flexibly set. Optionally, the area of ​​a single magnetic flux gathering member is 28 mm2 to 5024 mm2. 2and / or the area of ​​all the magnetic flux concentrating members accounts for 10% to 70% of the area of ​​the disk body. According to the present application, the area of ​​the magnetic flux concentrating members can be flexibly set. Optionally, the second region is provided with at least one heat dissipation hole. According to the present application, the heat dissipation hole can help dissipate heat from the coiled wire. Optionally, in the projection of the coiled wire assembly along the extension direction of the coiled wire assembly's central axis, the coiled wire forms an annular or circular area centered on the coiled wire assembly's central axis. According to the present application, the coiled wire can be wound into a circular or annular shape around the coiled wire assembly's central axis, simplifying winding. Optionally, the electromagnetic heating cooking appliance further includes a drive device connected to the coiled wire assembly, or connected to the cooking container, for driving the connected coiled wire assembly or cooking container to rotate. According to the present application, the drive device is used to rotate the cooking container relative to the magnetic field. Optionally, the drive device includes: a drive assembly for providing driving force; and a transmission assembly connected to the drive assembly for transmitting the driving force. According to the present application, the drive device has a simple structure. Optionally, the drive assembly is configured as a motor; and / or the electromagnetic heating cooking appliance further includes a grounding wire, one end of which is connected to the housing of the drive assembly and the other end of which is connected to a ground terminal of the electromagnetic heating cooking appliance. According to the present application, the drive assembly is simple to control, has stable performance, and is low-cost. The grounding wire helps the drive assembly resist electromagnetic interference. Optionally, the drive assembly is configured as a motor, and the transmission assembly includes at least: a first transmission wheel coaxially connected to the output shaft of the motor for rotation driven by the motor; and a second transmission wheel connected to the connected wire reel assembly or cooking container and connected to the first transmission wheel. The transmission assembly is configured such that, driven by the first transmission wheel, the second transmission wheel drives the connected wire reel assembly or cooking container to rotate synchronously. According to the present application, the transmission assembly has a simple structure and stable performance. Optionally, the transmission assembly is made of non-metallic material. According to the present application, the transmission assembly can resist electromagnetic interference. Optionally,The electromagnetic heating cooking appliance further includes a magnetic shielding cover, which is used to cover at least a portion of the driving device to shield the alternating magnetic field. According to the present application, the magnetic shielding cover helps the driving device resist electromagnetic interference. Optionally, the electromagnetic heating cooking appliance further includes a grounding wire, one end of which is connected to the magnetic shielding cover and the other end to a ground terminal of the electromagnetic heating cooking appliance. According to the present application, the grounding wire can further improve the driving device's electromagnetic interference resistance. Optionally, the driving device is configured to contact the cooking container wall to drive the cooking container to rotate relative to the cable reel assembly about the cooking container's central axis. Furthermore, the driving device includes: a motor for providing driving force; and a friction wheel coaxially connected to the motor's output shaft for rotation under the motor's drive, wherein the friction wheel is configured to contact the cooking container wall. According to the present application, the driving device can directly contact the cooking container to cause it to rotate. Optionally, the electromagnetic heating cooking appliance is an electric rice cooker, electric pressure cooker, electric stew pot, electric hot pot, electric kettle, or induction cooker. According to the present application, electromagnetic heating cooking appliances include various types. Optionally, the wire reel assembly is configured such that the alternating magnetic field comprises N alternating strong magnetic regions and N weak magnetic regions along the circumference of the wire reel assembly, wherein the magnetic field strength of the strong magnetic regions is greater than the magnetic field strength of the weak magnetic regions. The N strong magnetic regions are evenly spaced along the circumference of the wire reel assembly, and the N weak magnetic regions are evenly spaced along the circumference of the wire reel assembly, where N is an integer greater than or equal to 1. According to the present application, the alternating magnetic field comprises N evenly spaced strong magnetic regions along the circumference, thereby simplifies heating control of the cooking container. Optionally, the electromagnetic heating cooking appliance is configured such that at least a portion of the wire reel assembly and the cooking container are rotatable relative to the other by ±180 / N degrees. According to the present application, the cooking container is rotated ±180 / N degrees relative to the magnetic field so that the heated spot completely covers the entire cooking container.The control method is simple. Description of the drawings The following drawings of this application are hereby incorporated as part of this application for understanding the application. The drawings show the implementation of the application and its description, and are used to explain the principle of the application. In the accompanying drawings: FIG1 is a side sectional schematic diagram of an electromagnetic heating cooking appliance according to a first embodiment of the present application; FIG2 is a schematic diagram of the internal structure of the electromagnetic heating cooking appliance shown in FIG1 , showing a wire reel assembly, a circuit board assembly, and a driving device; FIG3 is a schematic diagram of some components of the electromagnetic heating cooking appliance shown in FIG1 , showing the driving device and the wire reel assembly; FIG4 is an exploded schematic diagram of some components of the electromagnetic heating cooking appliance shown in FIG1 , showing the driving device; FIG5 is a side sectional schematic diagram of some components of the electromagnetic heating cooking appliance shown in FIG1 ; FIG6 is a partial enlarged view of the structure at point A in FIG5 ; FIG7 is a partial enlarged view of the structure at point B in FIG5 ; FIG8 is a schematic diagram of the wire reel rack shown in FIG3 ; FIG9 is a partial enlarged view of the structure at point C in FIG8 ; FIG10 is a schematic diagram of some components of the electromagnetic heating cooking appliance shown in FIG1 , showing a wire reel assembly, a wiring assembly, and a circuit board assembly; FIG11 is a side sectional schematic diagram of an electromagnetic heating cooking appliance according to a second embodiment of the present application; FIG12 is a schematic side sectional view of a portion of the internal structure of the electromagnetic heating cooker shown in FIG11 , illustrating the cooking container, the wire reel device, and the driving device; FIG13 is an exploded schematic view of the wire reel device of the electromagnetic heating cooker shown in FIG11 ; FIG14 is an exploded schematic view of the wire reel device of the electromagnetic heating cooker according to the third embodiment of the present application; FIG15 is a schematic side sectional view of the electromagnetic heating cooker according to the fourth embodiment of the present application; FIG16 is a schematic side sectional view of a portion of the internal structure of the electromagnetic heating cooker shown in FIG15 , illustrating the cooking container, the wire reel device, and the driving device; FIG17 is an exploded schematic view of a portion of the internal structure of the electromagnetic heating cooker shown in FIG15 , illustrating the cooking container and the wire reel device; FIG18 is a schematic sectional view of a portion of the internal structure of the electromagnetic heating cooker shown in FIG15 ,FIG1 illustrates the wiring arrangement of the coiled wires of the wire reel device; FIG19 is a bottom view schematic diagram of the reel shown in FIG17; FIG20 is a side cross-sectional schematic diagram of a cooking appliance according to a fifth embodiment of the present application; FIG21 is a schematic diagram of portions of the cooking appliance shown in FIG20, showing the wire reel assembly and circuit board assembly; FIG22 is a bottom view schematic diagram of the wire reel assembly shown in FIG21; FIG23 is a schematic diagram of portions of the cooking appliance shown in FIG20, showing the cooking container, wire reel device, and drive device; FIG24 is a perspective schematic diagram of the temperature sensor assembly shown in FIG21; FIG25 is a schematic diagram of the internal structure of an electromagnetic heating cooking appliance according to a sixth embodiment of the present application, showing the cooking container, temperature sensor assembly, wire reel assembly, and drive device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description, numerous specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without one or more of these details. In other instances, certain technical features known in the art have not been described to avoid confusion with the present application. In order to thoroughly understand the present application, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to ordinary technicians in the field. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other embodiments. Ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". The use of words such as "first", "second" and "third" does not indicate any order, and these words can be interpreted as names. It should be noted thatThe terms "upper," "lower," "front," "rear," "left," "right," "inside," "outside," and similar expressions used in this application are for illustrative purposes only and are not limiting. This application provides an electromagnetic heating cooking device. Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. As shown in FIG1 , in this first embodiment, an electromagnetic heating cooking device 100 (hereinafter referred to as cooking device 100 ) according to this application includes a lid 10 and a pot 20 . A heating device and a cooking container 30 (e.g., a pot inner shell) are disposed within the pot. The cooking container 30 is used to hold food, and the heating device is used to heat the cooking container 30. The lid 10 covers the pot 20. When the lid 10 covers the pot 20, a cooking space 31 is formed between the lid 10 and the cooking container 30. The cooking container 30 has a capacity of, for example, 1 L to 15 L. It will be appreciated that the cooking container 30 is made of ferromagnetic material. Specifically, the pot body 20 has a receiving cavity 21, in which the cooking container 30 is removably disposed. The heating device comprises a wire reel device 160 and a circuit board assembly 22. The pot body 20 has a base 26, which forms at least the bottom wall of the receiving cavity 21. The wire reel device 160 and the circuit board assembly 22 are both disposed on the base 26, for example. As shown in FIG2 , the wire reel device 160 includes a coiled wire 182, which forms the resonant inductor of the electromagnetic heating resonant circuit and generates the alternating magnetic field required for electromagnetic heating when energized. The circuit board assembly 22 is used to power the coiled wire 182. The coiled wire 182 is connected to the circuit board assembly 22, for example, via a cable assembly 29. The circuit board assembly 22 is provided with, for example, a resonant capacitor for use with the coiled wire 182, as well as a switch module (e.g., a power switch transistor (IGBT)), a control module, a power supply module, and the like. The wire drum device 160 is disposed at the bottom of the accommodating chamber 21, and the cooking container 30 is detachably disposed within the magnetically inductive region of the wire drum device 160, for example, at least above the wire drum device 160. The cooking container 30 has a central axis P3. The cooking container 30 is generally in the shape of a solid of revolution with the central axis P3 as its axis. As shown in Figures 1 and 2,The cable reel device 160 includes a cable reel assembly 170, which includes at least one coiled wire 182. The coiled wire 182 is configured to generate an alternating magnetic field when energized. The cable reel assembly 170 has a central axis PA and is configured such that the intensity of the alternating magnetic field is non-uniformly distributed along the circumference of the cable reel assembly 170. The electromagnetic heating cooking appliance 100 is configured such that the cooking container 30 and the cable reel assembly 170 are detachably disposed at least above the cable reel assembly 170. When the cooking container 30 is positioned at least above the cable reel assembly 170, the cooking container central axis P3 substantially coincides with the cable reel assembly central axis PA, and at least a portion of the cable reel assembly 170 is rotatable relative to the cooking container 30 about the cable reel assembly central axis PA. As an alternative embodiment, the cooking container 30 may also be selectively rotatable relative to at least a portion of the cable reel assembly 170 about the cooking container central axis P3. Thus, one of the alternating magnetic fields generated by the cooking container 30 and the cable reel assembly 170 can rotate relative to the other about the cable reel assembly's central axis PA, causing the heated portion of the cooking container 30 to rotate circumferentially on the cooking container 30. In this application, "substantially coincident" means that the distance W between the two central axes is 3 mm, and the angle W between the two central axes is 5°. In other words, the two central axes are substantially parallel and close to each other. It will be appreciated that both the cooking container's central axis P3 and the cable reel assembly's central axis PA extend along the height of the cooking appliance 100. In an embodiment not shown herein, the cable reel device 160 is disposed to the side of the cooking container 30 (for example, the cable reel device 160 comprises a sleeve that can be positioned around the outer circumference of the cooking container 30). Alternatively, the wire reel device 160 may also be disposed on the cover 10 (the cover 10 includes a cavity for accommodating the wire reel device 160), so that the cooking container 30 and the wire reel device 160 are detachably disposed at least below the magnetically inductive region of the wire reel device 160. That is, in this application,The cooking container 30 and the cable reel assembly 160 are detachably disposed on one side within the magnetically inductive region of the cable reel assembly 160 (i.e., the coiled wire 182 and / or the magnetic field generated by it are located at least above, below, or outside the cooking container 30), such that the central axis P3 of the cooking container substantially coincides with the central axis PA of the cable reel assembly. A drive device 50 disposed on the base 26 is configured to drive one of the alternating magnetic fields generated by the cooking container 30 and the cable reel assembly 170 to rotate relative to the other about the central axis PA of the cable reel assembly. As shown in FIG2 , in some preferred embodiments of the present application, the cable reel assembly 170 includes a plurality of coiled wires 182 spaced apart along the circumference of the cable reel assembly 170 such that all coiled wires 182 do not completely fill the annular region centered around the central axis PA of the cable reel assembly. Alternatively, the cable reel assembly 170 may include only one coiled wire 182, the winding center of which is offset from the central axis PA of the cable reel assembly. The coiled wire 182 is not concentric with the spool assembly 170. Consequently, along the circumference of the spool assembly 170, the magnetic field density is high and the magnetic field strength is strong in the area where the coiled wire 182 is distributed, while the magnetic field density is low and the magnetic field strength is weak in the area where the coiled wire 182 is not distributed. In other words, the non-uniform distribution of the magnetic field strength is achieved by distributing the coiled wire 182 non-uniformly along the circumference of the spool assembly 170. It should be noted that in this application, the number of coiled wires 182 included in the spool assembly 170 is not specifically limited. In specific implementations, the number of coiled wires 182 included in the spool assembly 170 can be one, two, three, four, five, six, seven, eight, nine, or more than ten. In a specific implementation, as shown in FIG2 , the number of coiled wires 182 is preferably three, and the three coiled wires 182 are spaced apart along the circumference of the wire reel assembly 170. Furthermore, the three coiled wires 182 are preferably spaced evenly apart along the circumference of the wire reel assembly 170. It should also be noted that, in this application, the phrase "at least a portion of the wire reel assembly is rotatable relative to the cooking container about the central axis of the wire reel assembly" includes at least a portion of the wire reel assembly being able to rotate a full circle about the central axis PA of the wire reel assembly.This also includes at least a portion of the wire reel assembly being able to rotate less than 360° about the central axis PA of the wire reel assembly. In some preferred embodiments of the present application, the wire reel assembly 170 is further configured such that the alternating magnetic field comprises N strong magnetic regions and N weak magnetic regions, alternating along the circumference of the wire reel assembly 170. The magnetic field strength of the strong magnetic regions is greater than that of the weak magnetic regions. In the illustrated embodiment, the portion of the wire reel assembly 170 corresponding to the coiled wires 182 is the strong magnetic region, and the portion corresponding to the gap between the two coiled wires 182 is the weak magnetic region. The N strong magnetic regions are evenly spaced along the circumference of the wire reel assembly 170, and the N weak magnetic regions are evenly spaced along the circumference of the wire reel assembly 170. The electromagnetic heating cooking appliance 100 is configured such that, when the cooking container 30 is located at least above the wire reel assembly 170, at least a portion of the wire reel assembly 170 and the cooking container 30 can rotate relative to the other by ±180 / N degrees. It should be noted that N is any integer greater than or equal to 1. In a specific implementation, N can optionally be any value selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. It should be further noted that N is not limited to the values ​​listed above and can also be any value greater than 10. In a specific implementation, N can also be 11, 12, 13, and so on. As some preferred embodiments of the present application, as shown in FIG. 2 , the wire drum assembly 170 is constructed such that the alternating magnetic field has three strong magnetic regions and three weak magnetic regions that are alternately distributed along the circumferential direction of the wire drum assembly 170. According to the present application, by including at least one coiled wire 182 in the coil assembly 170 and enabling it to rotate relative to the cooking container 30, the electromagnetic heating cooking device 100 can achieve a point-heat-source rotational heating effect. This can also create complex and varied convection tumbling patterns and effects within the cooking container 30, allowing for more uniform heating of ingredients, resulting in a better cooking experience and an improved user experience. In particular, when the coil assembly 170 includes multiple coiled wires 182, the electromagnetic heating cooking device 100 can achieve a point-heat-source rotational heating effect, further ensuring more uniform heating of ingredients and achieving a better cooking effect. As some preferred embodiments of the present application,The electromagnetic heating cooking appliance 100 is configured such that when the cooking container 30 is placed at least above the wire reel assembly 170, the distance between the coiled wire 182 and the cooking container 30 is any value between 3 mm and 30 mm. In a specific implementation, the distance between the coiled wire 182 and the cooking container 30 is preferably between 6 mm and 10 mm. oAccording to the present application, the distance between the coiled wire 182 and the cooking container 30 is set between 3 mm and 30 mm. This solves the problem of the magnetic field generated by the coiled wire 182 covering a small area of ​​the cooking container 30 and insufficient heat due to a large distance. It also solves the problem of excessive heat generation and increased energy consumption due to a small distance between the coiled wire 182 and the cooking container 30. The cable reel assembly 170 includes a cable spool 180, which is generally disc-shaped and has a central axis P8, also known as the cable reel assembly central axis PA. Coils 182 are arranged at intervals along the circumference of the cable spool 180. The coils 182 are wound around a winding center offset from the central axis P8, resulting in the coils 182 being non-concentric with the cable spool 180 and the cable reel assembly 170. In the illustrated embodiment, the drive device 50 is configured to drive the cable spool 180 to rotate about the central axis PA relative to the pot body 20 (i.e., the cooking container 30), thereby rotating the cable reel assembly 170 about the central axis PA relative to the pot body 20 (i.e., the cooking container 30). In this application, the wire drum 180 is also referred to as the turntable 180. It should be noted that the driving device 50 in this application is not specifically limited and can be any device capable of driving the wire drum assembly 170 (specifically, the wire drum 180) to rotate. The wire drum assembly 170 may further include at least one wire drum support 183 and at least one magnetic conductive member 185. The wire drum support 183 is connected to the wire drum 180 and protrudes from the surface of the wire drum 180. The wire drum support 183 has a winding center that is offset from the central axis P8 of the wire drum. The coiled wire 182 is coiled around the winding center on the surface of the wire drum 180. The magnetic conductive member 185 is disposed on the wire drum support 183. At least a portion of the magnetic conductive member 185 extends along the magnetic field lines of the magnetic field of the coiled wire 182, thereby focusing the magnetic field lines of the magnetic field of the coiled wire 182.Preferably, the wire reel assembly 170 includes multiple wire reel supports 183, for example, 2 to 8 wire reel supports 183. The multiple wire reel supports 183 are spaced apart along the circumference of the wire reel 180, for example, the multiple wire reel supports 183 are equally spaced along the circumference of the wire reel 180. The wire reel assembly 170 may include multiple wire reel supports 183, thereby including multiple coiled wires 182. At least a portion of the multiple coiled wires 182 may be formed by winding a single enameled wire; alternatively, each coiled wire 182 may be formed by winding a different enameled wire. A certain gap must be provided between two adjacent coiled wires 182 to prevent electromagnetic self-interference, resulting in undesirable effects such as high back pressure, low inductance, low heating power, large stored current, and a chaotic heating waveform. Specifically, as shown in Figures 3 and 4, the base 26 has an upwardly protruding support member 162, and the wire coiling rack 180 is mounted on the support member 162. The driving device 50 is used to drive the wire coiling rack 180 to rotate relative to the support member 162 about the wire coil assembly central axis PA. The driving device 50 can optionally include a driving assembly 51 and a transmission assembly 55. The driving assembly 51 is used to provide the driving force for rotating the wire coiling rack 180 relative to the support member 162. The transmission assembly 55 is connected between the driving assembly 51 and the wire coiling rack 180 to transmit the driving force to the wire coiling rack 180. In other words, the driving assembly 51 is transmission-connected to the wire coil assembly 170 via the transmission assembly 55. Driven by the driving assembly 51, the wire coil assembly 170 can rotate relative to the cooking container 30 about the wire coil assembly central axis PA. The driving assembly 51 is configured, for example, as a motor. The motor 51 is, for example, a stepper motor to provide power for the forward and reverse rotation of the wire coil assembly 170. Motor 51 is electrically connected to the control module of circuit board assembly 22 and operates under the control of the control module. By controlling motor 51, the control module can realize forward and reverse rotation and intermittent rotation of turntable 180, with adjustable speed and stroke. The speed of turntable 180 ranges from 1 rpm to 350 rpm, preferably from 4 rpm to 6 rpm.The transmission assembly 55, for example, includes a first transmission wheel 57 and a second transmission wheel 58, both of which are configured as meshing gears. Furthermore, the first transmission wheel 57 is connected to the motor shaft 59 (motor output shaft) of the motor 51, and the second transmission wheel 58 is connected to the wire reel 180. When power is supplied to the motor 51, the motor 51 drives the wire reel 180 to rotate via the first transmission wheel 57 and the second transmission wheel 58, ultimately causing the wire reel assembly 170 to rotate. It should be noted that the first transmission wheel 57 and the second transmission wheel 58 can be configured as gears, rollers, sprockets, pulleys, friction wheels, and the like. Preferably, both the first transmission wheel 57 and the second transmission wheel 58 are configured as gears. As shown in FIG4 , in some preferred embodiments of the present application, the electromagnetic heating cooking appliance 100 further includes a magnetic shield 52. The magnetic shield 52 is made of metal and is used to cover at least a portion of the drive device 50 (e.g., the motor 51) to shield the magnetic field generated by the disc-shaped winding 182. For example, the motor 51 is mounted to the base 26 of the pot body 20 via two bolts 54. The magnetic shield 52 can also be mounted to the base 26 using these two bolts 54, so that the housing of the motor 51 contacts the magnetic shield 52. The magnetic shield 52 has an axial hole 56 for the motor shaft 59 to pass through. In some preferred embodiments of the present application, the electromagnetic heating cooking appliance 100 further includes a grounding wire 53. One end of the grounding wire 53 is connected to the magnetic shield 52 and / or the housing of the motor 51 (e.g., secured to the magnetic shield 52 via bolts 54), and the other end is connected to a ground terminal of the electromagnetic heating cooking appliance 100, such as a ground terminal on the circuit board assembly 22 or a ground terminal on the power socket 27. The grounding wire 53 grounds the housing of the motor 51 and the magnetic shield 52, effectively enhancing the magnetic shield 52's magnetic shielding effect. To achieve even better magnetic shielding, the motor shaft 59 can be optionally made of a non-metallic material. Of course, the motor shaft 59 can also be made of a metallic material. Furthermore, the transmission assembly 55 (first transmission wheel 57, second transmission wheel 58, etc.) included in the drive device 50 can also be made of a non-metallic material. The structure of the cable reel device 160 is described below.As shown in Figures 5 and 6, the cable reel device 160 includes a support member 162 and a cable reel assembly 170. The support member 162 is mounted on the base 26, and the cable reel assembly 170 is mounted on the support member 162. Specifically, the cable reel frame 180 of the cable reel assembly 170 is connected to the support member 162 and is rotatable relative to the support member 162 about the cable reel assembly's central axis PA. It should be noted that the present application does not impose any specific restrictions on the structure of the support member 162; it may be any structure that meets the installation requirements of the cable reel assembly 170. The cable reel device 160 may also include a temperature sensor assembly 40. The temperature sensor assembly 40 is mounted on the support member 162 and is configured to contact the cooking container 30 to sense the bottom temperature of the cooking container 30. For example, the support member 162 includes a receiving space 162A. The temperature sensor assembly 40 is disposed in the receiving space 162A and is exposed from the surface of the support member 162 to contact the cooking container 30. The support member 162 includes a first end 163 and a second end 164, arranged in opposite directions along the axial direction of the cable drum assembly 170, with the first end 163 positioned at the top and the second end 164 at the bottom. The temperature sensor assembly 40 is exposed from the first end 163, while the second end 164 is provided with a cable outlet (not shown) for routing the cable 42 of the temperature sensor assembly 40. A cable drum 180 is, for example, mounted on the outer periphery of the support member 162. A coiled cable 182 is disposed on the side of the cable drum 180 facing the second end 164. A cable drum support 283 is connected to the side of the cable drum 180 facing the second end 164. In a specific implementation, a cylindrical portion 180C is provided at or approximately at the center of the cable drum 180. The cylindrical portion 180C has a first end 180X and a second end 180Y, which are arranged in opposite directions along the axial direction of the cable drum 180. The first end 180X of the cylindrical portion 180C is connected to the center of the cable drum 180, while the second end 180Y of the cylindrical portion 180C extends away from the cable drum 180. The central axis of the cylindrical portion 180C coincides with the central axis P8 of the cable drum.A wire drum through-hole 180J is formed within the cylindrical portion 180C, extending in the axial direction of the wire drum assembly 180. At least a portion of the support member 162 is disposed within the wire drum through-hole 180J. The first end 163 and the second end 164 of the support member can also be understood as being disposed in opposite directions along the axial direction of the cylindrical portion 180C. The first end 163 corresponds to the first end 180X of the cylindrical portion, while the second end 164 corresponds to the second end 180Y of the cylindrical portion. The support member 162 is adapted to fit within the wire drum through-hole 180J, allowing the wire drum assembly 180 to rotate relative to the support member 162 about the central axis PA of the wire drum assembly. For example, the sidewalls of the wire drum through-hole 180J and the sidewalls of the support member 162 are connected by a pivoting substructure 161, where the axis of the pivoting substructure 161 coincides with the central axis PA of the wire drum assembly. The rotating auxiliary structure 161 can optionally be configured as a rolling bearing, whereby the inner ring of the rolling bearing 161 tightly fits the outer circumferential surface of the support member 162, and the outer ring of the rolling bearing 161 tightly fits the inner circumferential surface of the wire drum through hole 180J. As an alternative embodiment, the rotating auxiliary structure 161 can also be configured as a sliding sleeve. To prevent electromagnetic interference, the rotating auxiliary structure 161 can further be optionally made of a non-metallic material. In a specific implementation, the cylindrical portion 180C and the wire drum frame 180 can optionally be integrally formed, or the first end of the cylindrical portion 180C can be connected to the wire drum frame 180 via bonding, welding, screw connection, or other methods. Furthermore, an annular groove 162Fo for accommodating the rotating auxiliary structure 161 can be optionally formed on the outer circumference of the support member 162. In a specific implementation, the rolling bearing 161 is sleeved in the annular groove 162F. As some preferred embodiments of the present application, as shown in FIG. 13 and FIG. 14 , the support member 162 includes a first support member 162D and a second support member 162Eo, wherein the first support member 162D is disposed at the first end portion 163 of the support member.The second support member 162E is provided at the second end portion 164 of the support member and is connected (for example, by snap connection, screw connection, etc.) to the first support member 162D. An end 162G of the first support member 162D for connecting to the second support member 162E has a first outer diameter, an end 162H of the second support member 162E for connecting to the first support member 162D has a second outer diameter, and an end 1621 of the second support member 162E away from the first support member 162D has a third outer diameter. The first outer diameter is greater than the second outer diameter, and the third outer diameter is greater than the second outer diameter, so that a snap groove 162F is formed in the portion 162H corresponding to the second outer diameter. The rotary sub-structure 161 is provided at the portion 162H of the second support member 162E having the second outer diameter. The first support member 162D and the second support member 162E are both constructed as hollow structures to form an accommodating space 162A. The cable outlet for cable 42 is located on the second support member 162Eo, along the axial direction of the cable drum assembly 170. The pivoting substructure 161 is closer to the support member's first end 163 than the outlet. This position of the outlet avoids the cable drum assembly 170, ensuring that the cable 42 has no effect on the rotation of the cable drum assembly 170. The inner circumferential surface of the cable drum through-hole 180J includes a blocking surface 180M extending radially toward the cylindrical portion 180C. This blocking surface 180M contacts the side of the pivoting substructure 161 facing the support member's first end 163. Thus, the rotary sub-structure 161 can support the cylindrical portion 180C along the height direction of the cooking appliance 100, and further support the wire coil rack 180 and the wire coil assembly 170. As shown in Figures 6 and 7, the wire coil device 160 also includes a first blocking member 165. The first blocking member 165 is arranged at the first end of the support member. The first blocking member 165 includes a first blocking portion 165A extending outward in the radial direction of the wire coil assembly 170 to prevent the wire coil rack 180 from moving along the axial direction of the wire coil assembly 170 in a direction away from the second end 164 of the support member.First blocking member 165 also includes a first connecting portion 165B, which is connected to first blocking portion 165A and is configured to connect to support member first end 163. First connecting portion 165B is configured as a sleeve extending in the axial direction of cable drum assembly 170. This sleeve is sleeved around the outer periphery of support member first end 163, and sleeved around the outer periphery of first support member 162D. A through-hole is provided at the end of first blocking member 165 corresponding to the end of first connecting portion 165B connected to first blocking portion 165A (the upper end of first blocking member 165 in the figure) to expose temperature sensor assembly 40. To protect temperature sensor assembly 40 when cooking container 30 is placed in pot body 20, temperature sensor assembly 40 includes a spring 41 extending in the axial direction of cable drum assembly 170. As shown in Figure 14 , to prevent the temperature sensor assembly 40 from escaping from the accommodating space 162A, the support member 162 is provided with a first additional stopper 167G and a second additional stopper 167H spaced apart along the axial direction of the cable drum assembly 170. These stoppers retain at least a portion of the temperature sensor assembly 40 between the first and second additional stoppers 167G and 167H. For example, the upper end surface of the first support member 162D forms the first additional stopper 167G, while a rib within the second support member 162E forms the second additional stopper 167H. The spring 41 of the temperature sensor assembly 40 is retained between the first and second additional stoppers 167G and 167H along the axial direction of the cable drum assembly 570. The drive device 50 is connected to the cylindrical portion 180C. As shown in Figures 8 and 9, as some preferred embodiments of the present application, the outer peripheral surface of the cylindrical portion 180C is further selectively provided with a connecting structure 187o for connecting to the drive device 50. The connecting structure 187 for connecting to the drive device 50 in the present application is not specifically limited. It can be any structure that can connect to the drive device 50 and cause the wire drum assembly 170 (specifically, the wire drum rack 180) to rotate.As some examples of the aforementioned embodiments, the connecting structure 187 may optionally include a second transmission wheel 58 (the transmission assembly 55 may only include the first transmission wheel 57). For example, the second transmission wheel 58 may be integrally formed or attached to the connecting structure 187, and the second transmission wheel 58 may be connected to the cylindrical portion 180C. For example, the second transmission wheel 58 may be integrally formed with the cylindrical portion 180C, and the axis of the second transmission wheel 58 may coincide with the central axis of the cylindrical portion 180C. Thus, the connecting structure 187 is configured to connect to the first transmission wheel 57 of the drive device 50. As an alternative embodiment, the drive device 50 may optionally include the second transmission wheel 58, and the connecting structure 187 may be configured to connect to the second transmission wheel 58. When the second transmission wheel 58 is connected to the connecting structure 187, the axis of the second transmission wheel 58 may coincide with the central axis of the cylindrical portion 180C. The second transmission wheel 58 may be an annular structure, configured to be mounted around the outer circumference of the cylindrical portion 180C. Connecting structure 187 is provided on the outer circumferential surface of cylindrical portion 180C and is used to connect to second transmission wheel 58. Connecting structure 187 includes a first stop surface 180L. This first stop surface 180L extends outward from the outer circumferential surface of cylindrical portion 180C in the radial direction of cylindrical portion 180C and toward second end 180Y of cylindrical portion 180C. This surface is used to limit axial movement of second transmission wheel 58 along cylindrical portion 180C toward cable reel 180. In a specific implementation, an annular rib is provided in the middle of the outer side of cylindrical portion 180C. The surface of the rib, which faces the second end of cylindrical portion 180C, serves as first stop surface 1801. By including first stop surface 1801 in the connecting structure, the present application can axially limit the second transmission wheel 58, preventing it from moving toward cable reel 180.As some preferred embodiments of the present application, the inner circumferential surface of the second transmission wheel 58 can be selectively provided with at least one second connecting body 58F (see Figure 4), and the connecting structure 187 includes at least one first connecting body 180D. The first connecting body 180D is used to be arranged corresponding to and connected to the second connecting body 58F. The first connecting body 180D is closer to the second end 180Y of the cylindrical portion 180C than the first limit stop surface 1801. When the second transmission wheel 58 is installed to the set position, the first connecting body 180D is engaged with the second connecting body 58F to limit the rotation of the second transmission wheel 58 relative to the connecting structure 187, so that the cylindrical portion 180C can rotate synchronously with the second transmission wheel 58. In a specific implementation, a plurality of second connectors 58F may be provided at intervals on the inner circumferential surface of the second transmission wheel 58, and the connection structure 187 may include a plurality of first connectors 180Do corresponding to the second connectors 58F and arranged at intervals along the circumference of the cylindrical portion 180C. It should be noted that there is no specific limit to the number of second connectors 58F provided on the inner circumferential surface of the second transmission wheel 58, and they may be selectively provided according to actual needs. In some preferred embodiments of the aforementioned embodiments, the first connector 180D is further configured as a rib provided on the outer circumferential surface of the cylindrical portion 180C, and the second connector 58F is configured as a retaining groove provided on the inner circumferential surface of the second transmission wheel 58. The retaining groove 58F extends in the axial direction of the second transmission wheel 58 and is configured to accommodate the rib 180D. In some alternative embodiments, the second connector 58F can alternatively be configured as a rib provided on the inner circumferential surface of the second transmission wheel 58, and the first connector 180D can be configured as a retaining groove provided on the outer circumferential surface of the cylindrical portion 180C. The retaining groove extends in the axial direction of the cylindrical portion 180C and is configured to accommodate the rib on the inner circumferential surface of the second transmission wheel 58. By providing the rib 180D and retaining groove 58F, the second transmission wheel 58 can be quickly secured to the cylindrical portion 180C, effectively improving assembly efficiency of the second transmission wheel 58. In addition, under the action of the rib 180D and the limiting groove 58F, the second transmission wheel 58 can also drive the cable drum 180 to rotate during the rotation process.As some preferred embodiments of the present application, the connection structure 187 may further include at least one limiting guide structure 180Eo. The limiting guide structure 180E is arranged on the outer circumferential surface of the cylindrical portion 180C, and the side of the limiting guide structure 180E facing the first end 180X of the cylindrical portion 180C includes a second limiting stop surface 180K. The second limiting stop surface 180K extends outward from the outer circumferential surface of the cylindrical portion 180C along the radial direction of the cylindrical portion 180C, and the second limiting stop surface 180K is closer to the second end 180Y of the cylindrical portion 180C than the first limiting stop surface 1801. In specific implementation, the connection structure 187 may further selectively include multiple limiting guide structures 180E, and the multiple limiting guide structures 180E are arranged at intervals along the circumferential direction of the cylindrical portion 180C. As a preferred embodiment of some of the aforementioned embodiments, as shown in FIG9 , the position-limiting guide structure 180E includes a guide slope 180H located on the side facing away from the cylindrical portion 180C. Guide slope 180H is configured to be inclined relative to the axis of the cylindrical portion 180C, such that the distance between the end of guide slope 180H facing the second end 180Y of the cylindrical portion 180C and the axis of the cylindrical portion 180C is less than the distance between the end of guide slope 180H facing the first end 180X of the cylindrical portion 180C and the axis of the cylindrical portion 180C. Portions of the cylindrical portion 180C located on either side of the position-limiting guide structure 180E along the circumferential direction of the cylindrical portion 180C are configured as functional grooves 180L extending in the axial direction of the cylindrical portion 180C. Functional grooves 180L penetrate the sidewall of the cylindrical portion 180C. It should be noted that the structure of the position-limiting guide structure 180E in this application is not specifically limited. It can be any structure that can provide guidance during installation of the second transmission wheel 58 and a restraining function after the second transmission wheel 58 is installed. Similarly, the number of position-limiting guide structures 180E included in the connecting structure 187 is also not specifically limited and can be selected based on actual needs. The number of position-limiting guide structures 180E included in the connecting structure 187 can be two, three, four, five, or six or more. For example, the connecting structure 187 can include four position-limiting guide structures 180E, and the four position-limiting guide structures 180E are evenly spaced along the circumference of the cylindrical portion 180C.According to the present application, by providing multiple position-limiting guide structures 180E, the second transmission wheel 58 can be guided at multiple points, facilitating quick installation of the second transmission wheel 58. Furthermore, by providing guide ramps 180H on the position-limiting guide structures 180E, the second transmission wheel 58 can be quickly connected to the cylindrical portion 180C. Furthermore, by providing functional slots 180L on both sides of the position-limiting guide structures 180E, extending through the cylindrical portion 180C, the position-limiting guide structures 180E, in a cantilevered position, can be displaced toward the center of the cylindrical portion 180C during installation of the second transmission wheel 58, facilitating easier installation of the second transmission wheel 58 into the desired position. It should be noted that the second transmission wheel 58 in the present application is not specifically limited and can be any wheel capable of transmitting power. As shown in FIG10 , the wire reel assembly 170 may include at least one first enameled wire 189, which is wound into a coiled wire 182. The first enameled wire 189 includes a coiled portion 182A and two end portions 182B. The coiled portion 182A is wound on the reel frame 180 to form an effective resonant inductor of the electromagnetic heating resonant circuit. The two end portions 182B are portions of the first enameled wire 189 not used to form an effective resonant inductor. The coiled portion 182A is located between the two end portions 182B. The end portions 182B are connected to the circuit board assembly 22 via the cable assembly 29. The coiled wire 182 is disposed on the side of the reel frame 180 facing the second end 180Y of the cylindrical portion 180C. At least a portion of the end portions 182B is routed along the outer circumferential surface of the cylindrical portion 180C. For example, at least one first bundling member 180P is provided on the outer circumference of the cylindrical portion 180C to gather all of the terminal portions 182B onto the outer circumference of the cylindrical portion 180C, so that at least a portion of the terminal portions 182B are routed along the outer circumference of the cylindrical portion 180C. It should be noted that the number of first bundling members 180P provided on the cylindrical portions 180C-E is not specifically limited and can be selectively provided based on the length of the cylindrical portion 180C.For example, the cylindrical portion 180C-E is provided with a plurality of first bundling members 180P, which are spaced apart along the axial direction of the cylindrical portion 180C so that at least a portion of the terminal portion 182B is routed along the axial direction of the cylindrical portion 180C on the outer circumferential surface of the cylindrical portion 180C. Preferably, the cable reel 180 has a radially symmetrical structure. The axial cross-section of the cable reel 180 is C-shaped, thereby increasing the relative area between the cable reel 180 and the cooking container 30, thereby increasing the heating area of ​​the cooking container 30 provided by the cable reel assembly 170. The cable reel support 183 and the coiled wire 182 are disposed on the outer side 180B of the C-shaped structure (i.e., the lower side of the cable reel 180 during use). The cooking container 30 is located on the inner side 180A of the C-shaped structure (i.e., the upper side of the cable reel 180 during use). In the illustrated embodiment, the cooking appliance 100 is an electric rice cooker. Based on the wire reel device 160 of the present application, the cooking appliance 100 can also be an electric pressure cooker, an electric stew pot, an electric hot pot, an electric kettle (health pot), or an induction cooker (including a stove and a cooking container). Second Embodiment: The following describes only the differences between the electromagnetic heating cooking appliance 300 (hereinafter referred to as the cooking appliance 300) according to the second embodiment of the present application and the cooking appliance 100. In the second embodiment shown in Figures 11 to 13, the wire reel device 360 ​​and drive device 350 of the cooking appliance 300 differ from those of the first embodiment. Specifically, as shown in Figure 12, the wire reel device 360 ​​includes a support member 162, a wire reel assembly 370, a rotating substructure 161, a first blocking member 365, a second blocking member 366, a second transmission wheel 58, and a temperature sensor assembly 40. The wire reel assembly 370 is disposed on the support member 162. The cable drum assembly includes a cable drum 382, ​​a cable drum frame 380, and a rotating disk 390 (also referred to as a disk body 390). The cable drum 382 is connected to the support member 162. The cable drum 382 is spirally wound around the cable drum assembly's central axis PA (see FIG. 13 ), thereby forming a radially symmetrical structure with the cable drum assembly's central axis PA as its axis. For example, in the illustrated embodiment, in a projection of the cable drum assembly 370 along the extension direction of the cable drum assembly's central axis PA, the cable drum 382 forms an annular or circular area centered on the cable drum assembly's central axis PA.The wire coiling frame 380 is connected to the support member 162. A coiled wire 382 is spirally wound around the coil assembly's central axis PA on the surface of the wire coiling frame 380. The coiled wire 382 is formed, for example, by winding an enameled wire. The wire diameter of the enameled wire is, for example, 2 mm to 2.5 mm. The coiled wire 382 can be secured to the surface of the wire coiling frame 380 via a fastener, simplifying installation. The coiled wire 382 is connected to the support member 162 via the wire coiling frame 380. The wire coiling frame 380 has a central axis P8, which coincides or substantially coincides with the coil assembly's central axis PA. The wire coiling frame 380 is made of a non-metallic material (such as resin or plastic), which does not affect the magnetic field of the coiled wire 382. The axial direction of the wire coiling frame 380 also corresponds to the axial direction of the coil assembly 360. The circumferential direction of the wire reel 380 also corresponds to the circumferential direction of the wire reel device 360. The turntable 390 includes a disk body 393 having a geometric center axis P9 that coincides or substantially coincides with the wire reel assembly central axis PA. The disk body 393 is connected to the support member 162 and is spaced apart from the wire reel 380 along the axial direction of the wire reel assembly 370, and thus spaced apart from the wire reel 382. The wire reel device 360 ​​is configured so that the support member 162 is rotatable about the wire reel assembly central axis PA relative to the wire reel 380, and thus relative to the wire reel 382. Consequently, the disk body 393 is rotatable about the wire reel assembly central axis PA relative to the wire reel 380, and thus relative to the wire reel 382. The disk body 393 is alternately divided into a first area 391 and a second area 392 along the circumferential direction of the wire drum assembly 370, or the turntable 390 includes at least one first area 391 and at least one second area 392 correspondingly arranged, and the first area 391 and the second area 392 are alternately arranged on the disk body 393 along the circumferential direction of the wire drum assembly 370.The first region 391 comprises a different medium than the disc body 393, while the second region 392 is entirely made of the same material as the disc body 393. This ensures that the alternating magnetic field generated by the disc-shaped winding 382 has different magnetic field intensities in the first region 391 and the second region 392, thereby forming an alternating magnetic field that is non-uniformly distributed along the circumference of the disc assembly 370. The disc body 393 is made of a first material, such as a metal with a magnetic permeability of 10 B / H or less. The first region 391 is provided with at least one opening 394 for allowing the magnetic lines of force of the alternating magnetic field generated by the disc-shaped winding 382 to pass through. Because the first material is a metal with low magnetic permeability, few magnetic lines of force pass through the second region 392 of the tray 390. Consequently, on the side of the wire coiling frame 380 opposite the coiled wire 382, ​​the alternating magnetic field has more lines of force in the first region 391 than in the second region 392. This results in a greater magnetic field intensity in the first region 391 than in the second region 392, creating a strong magnetic region in the first region 391 and a weak magnetic region in the second region 392. The portion of the cooking container 30 corresponding to the strong magnetic region is heated to a higher temperature, while the portion corresponding to the weak magnetic region is heated to a lower temperature. The tray body 393 is rotatable relative to the wire coiling frame 380, and thus rotatable relative to the cooking container 30. When the disk body 393 rotates, the strong and weak magnetic regions rotate. That is, the magnetic field and the cooking container 30 rotate relative to each other, causing the high-heat and low-heat regions of the cooking container 30 to move circumferentially. This movement continuously changes the direction of convection between the hot and cold regions within the cooking container 30, facilitating sufficient tumbling and uniform heating of the food within the cooking container 30. Preferably, the area of ​​a single opening 394 ranges from 28 mm² to 5024 mm². 2 oThe area of ​​all openings 394 accounts for 10% to 70% of the area of ​​the disk body 393. The area here refers to the surface area corresponding to a single side of the disk body 393. The area of ​​the disk body 393 is the surface area of ​​a single side of the disk body 393 without through-holes or notches, that is, the area of ​​the complete disk surface. The thickness of the disk body 393 is 0.4 mm to 2 mm. The turntable 390 may include multiple (e.g., 2 to 5) first regions 391 and multiple second regions 392. Preferably, the multiple first regions 391 are evenly spaced along the circumference of the wire drum assembly 370, and the multiple second regions 392 are evenly spaced along the circumference of the wire drum assembly 370. For example, the wire reel assembly 370 is configured such that the alternating magnetic field has N strong magnetic regions and N weak magnetic regions (N is an integer greater than or equal to 1) alternatingly distributed along the circumference of the wire reel assembly 370. The N strong magnetic regions are evenly spaced along the circumference of the wire reel assembly 370, and the N weak magnetic regions are evenly spaced along the circumference of the wire reel assembly 370. Preferably, the cooking appliance 300 can be configured such that, when the cooking container 30 is positioned at least above the wire reel assembly 370, at least a portion of the wire reel assembly 370 (e.g., the turntable 390) can rotate ±180 / N degrees relative to the cooking container 30. In the illustrated embodiment, the turntable 390 includes three equally spaced first regions 391 and three equally spaced second regions 392. The turntable 390 can rotate ±60 degrees relative to the cooking container 30. Of course, the turntable 390 can rotate relative to the cooking container 30 by a larger angle (preferably an integer multiple of ±180 / N degrees, with no upper limit on the rotation angle), but it must rotate at least ±180 / N degrees to ensure uniform heating of the cooking container 30. The multiple first regions 391 can be constructed identically or differently, for example, each first region 391 can have openings 394 of different shapes, numbers, or total areas. A first distance exists between two adjacent openings 394 in each first region 391. The two openings 394 closest to each other in two adjacent first regions 391 are separated by a second distance.The maximum value of the first distance is smaller than the second distance. Specifically, the distance between the openings 394 in two adjacent first regions 391 is significantly greater than the distance between two adjacent openings 394 within the first region 391. This allows the turntable 390 to form distinct first and second regions 391 and 392, and accordingly, the alternating magnetic field to form distinct strong and weak magnetic regions. Since the disc-shaped winding 382 generates a significant amount of heat when energized, the openings 394 also facilitate heat dissipation. As will be appreciated, air exists within the openings 394. With respect to the magnetic field of the disc-shaped winding 382, ​​the air and the first material (low-permeability metal) of the disc body 393 represent different media. The axial direction of the turntable 390 is also the axial direction of the wire reel assembly 360, which is also the axial direction of the disc body 393. The circumferential direction of the turntable 390 is also the circumferential direction of the wire reel assembly 360, which is also the circumferential direction of the disc body 393. The wire coiling rack 380 and the tray body 393 extend generally parallel to each other, allowing the turntable 390 to effectively interact with the magnetic field generated by the coiled wire 382. Preferably, both the wire coiling rack 380 and the tray body 393 have radially symmetrical structures, facilitating manufacturing and providing a better fit with the similarly radially symmetrical cooking container 30. Preferably, the axial cross-sections of both the wire coiling rack 380 and the tray body 393 are C-shaped, allowing the coiled wire 382 to wrap around the sidewalls of the cooking container 30. In this application, the wire coiling rack 380 is positioned outside the C-shaped structure of the tray body 393, meaning that the wire coiling rack 380 is intended to be positioned at least below the tray body 393 along the height of the cooking appliance 300. The coiled wire 382 is positioned outside the C-shaped structure of the wire coiling rack 380, meaning that it is positioned on the surface of the wire coiling rack 380 facing away from the tray body 393. In operation, the distance between the reel body 393 and the coiled wire 382 is 3.5 to 10 mm, that is, the gap between the reel body 393 and the coiled wire 382 is 3.5 to 10 mm. The support member 162 is, for example, generally cylindrical. It includes a first end 163 and a second end 164, disposed opposite each other in the axial direction of the reel assembly 370. In operation, the first end 163 is positioned above the second end 164.The wire reel 380 is connected to the second end 164 of the support member, and the reel body 393 is connected to the first end 163 of the support member. The wire reel device 360 ​​is configured so that the reel body 393 rotates synchronously with the second end 164 of the support member (i.e., the support member 162) about the reel assembly central axis PA, thereby allowing it to rotate relative to the wire reel 380. A reel body connection portion 399 is provided at or approximately at the center of the reel body 393, for connecting the reel body 390 to the support member 162 of the electromagnetic heating cooking appliance 300. The reel body connection portion 399 includes a circular hole centered on the geometric center axis P9. Thus, the reel body 393 is sleeved around the outer circumference of the first end 163 of the support member. The reel body 393 and the first end 163 of the support member are connected by, for example, adhesive bonding, snap-fitting, or threaded connection. A wire drum hole 389A extending axially along the wire drum 380 is provided in or approximately in the center of the wire drum 380. The support member 162 is disposed within the wire drum hole 389A. For example, a cylindrical portion 389C extending axially along the wire drum 380 is provided in the center of the wire drum 380. The interior of the cylindrical portion 389C defines the wire drum hole 389A. The substantial portion of the cylindrical portion 389C comprises the sidewalls 389L of the wire drum hole 389A (the sidewalls 389L of the wire drum hole 389A also constitute the sidewalls of the cylindrical portion 389C). The central axis of the cylindrical portion 389C coincides with the central axis PA of the wire drum assembly. The support member 162 fits within the wire drum hole 389A, allowing the support member 162 to rotate relative to the wire drum 380 about the central axis PA of the wire drum assembly. For example, the cable reel device 360 ​​further includes a pivoting substructure 161. The sidewall 389L of the cable reel through-hole 389A is connected to the outer circumference of the support member's second end 164 via the pivoting substructure 161, with the axis of the pivoting substructure 161 coinciding with the central axis PA of the cable reel assembly. For example, the cable reel through-hole sidewall 389L is connected to the outer circumference of the support member's second end 164 via the pivoting substructure 161. The cable reel through-hole sidewall 389L is connected to the outer circumference of the pivoting substructure 161, while the support member's second end 164 is tightly fitted with the inner circumference of the pivoting substructure 161. This allows the cylindrical portion 389C to rotate stably relative to the support member 162, and thus the cable reel stand 380 to rotate stably relative to the support member 162.The rotary auxiliary structure 161 is configured as a rolling bearing or a sliding sleeve, for example. Preferably, the rotary auxiliary structure 161 is made of a non-metallic material (such as resin or plastic) so as not to interfere with the magnetic field of the disc-shaped winding 382. The wire reel device 360 ​​also includes a second blocking member 366, which is arranged at the second end portion 164 of the support member. The second blocking member 366 includes a second blocking portion 366A extending outward in the radial direction of the wire reel assembly 370. The outer peripheral surface of the support member 162 includes a blocking surface 369C extending toward the side wall 389L in the radial direction of the wire reel assembly 370, and / or the inner peripheral surface of the wire reel through hole 389A includes a blocking surface 389D extending toward the support member 162 in the radial direction of the wire reel assembly 370. The wire reel device 360 ​​is constructed so that the rotary sub-structure 161 is limited between the blocking surface 369C (and / or 389D) and the second blocking portion 366A along the axial direction of the wire reel assembly 370. When the cable reel device 360 ​​is placed in the accommodating cavity 21 of the pot body 20, the outer edge of the cable reel frame 380 is connected to the cavity wall of the accommodating cavity 21 (see Figure 11), thereby supporting the cable reel frame 380 within the pot body 20. To enable the support member 162 to rotate, the cable reel device 360 ​​also includes a second transmission wheel 58. The second transmission wheel 58 is connected to the support member 162 (for example, it is sleeved around the outer periphery of the support member 162 and engages with the support member 162 via splines and keyways). Driven by the drive device 350, the second transmission wheel 58 drives the support member 162 to rotate relative to the cable reel frame about the central axis PA of the cable reel assembly. To allow the drive device 350 to access the second transmission wheel 58, the second blocking member is provided with an opening 369F, and / or the sidewall 389L of the cable reel through-hole 389A is provided with an opening 389E, exposing the second transmission wheel 58. Specifically, the second transmission wheel 58 is disposed between the rotary sub-structure 161 and the blocking surface 369C (and / or 389D) along the axial direction of the drum assembly 370 .Part of the second blocking portion 366A is connected radially along the bobbin assembly 370 between the rotating substructure 161 and the sidewall 389L of the bobbin through-hole 389A. This creates a radial gap between the rotating substructure 161 and the sidewall 389L, allowing the second transmission gear 58 to radially extend beyond the rotating substructure 161, facilitating connection with the drive device 350. Preferably, the second transmission gear 58 is provided with a clearance portion 58A to clear the outer ring of the rotating substructure 161. That is, both the second transmission gear 58 and the support member 162 are connected to the inner ring of the rotating substructure 161. For example, the second blocking portion 366A includes a first additional connection portion 369M and a second additional connection portion 369N. The first additional connection portion 369M and the second additional connection portion 369N are spaced apart in the radial direction of the bobbin assembly 370, with the first additional connection portion 369M radially positioned further outward than the second additional connection portion 369N. The first additional connection portion 369M and the second additional connection portion 369N extend, for example, along the axial direction of the cable drum assembly 370. The first additional connection portion 369M is configured to connect (e.g., by snapping, bonding, or threading) to the sidewall 389L of the cylindrical portion 389C, while the second additional connection portion 369N is configured to tightly mate with the outer ring of the rotary secondary structure 161. An opening 369F is provided in the first additional connection portion 369M. The cable drum device 360 ​​also includes a first stopper 365. The first stopper 365 is provided at the support member first end 163. The first stopper 365 includes a first stopper portion 365A extending outwardly in the radial direction of the cable drum assembly 370 to prevent the support member 162 from moving in the axial direction of the cable drum assembly 370 away from the support member second end 164. That is, the first stopper portion 365A covers at least a portion of the support member first end 163 along the axial direction. As shown in FIG12 , the support member 162 includes a housing space 162A for accommodating the temperature sensor assembly 40. The temperature sensor assembly 40 is exposed from the surface of the support member 162, contacting the cooking container 30 to sense the temperature of the cooking container 30, and thus, the temperature of the food. The temperature sensor assembly 40 is exposed from a first end 163 of the support member. A cable outlet is provided at a second end 164 of the support member for routing the cable 42 of the temperature sensor assembly 40.Preferably, the accommodating space 162A passes through the support member 162 along the axial direction of the cable drum assembly 370. The solid portion of the support member 162 constitutes the side wall 162B of the accommodating space 162A (the side wall 162B of the accommodating space 162A is also the side wall 162B of the support member 162). O The first blocking member 365 also includes a first connecting portion 365B connected to the first blocking portion 365A. The first connecting portion 365B, for example, extends in the axial direction of the cable drum assembly 370 and is radially located inward of the first blocking portion 365A. The second blocking member 366 also includes a second connecting portion 366B connected to the second blocking portion 366A. The second connecting portion 366B, for example, extends in the axial direction of the cable drum assembly 370 and is radially located inward of the second blocking portion 366A. The first connecting portion 365B and the second connecting portion 366B are connected to each other in the accommodating space 162A (e.g., by snapping, bonding, or screwing). The first connecting portion 365B and the second connecting portion 366B are also sleeve-shaped, forming a sleeve. The support member 162 is sandwiched between this sleeve and the cylindrical portion 389C in the radial direction of the cable drum assembly 370. The support member 162 is sandwiched between the first blocking portion 365A and the second blocking portion 366A along the axial direction of the cable reel assembly 370. When the cable reel device 360 ​​is placed in the accommodating chamber 21, the outer peripheral edge of the cable reel frame 380 is connected to the cavity wall of the accommodating chamber 21, thereby stably supporting the cable reel frame 380. The second blocking member 366 is mounted to the cylindrical portion 389C of the cable reel frame 380, thereby stably supporting the second blocking member 366. Consequently, the rotary substructure 161, the second transmission wheel 58, the support member 162, and the first blocking member 365 are all stably supported. The temperature sensor assembly 40 is disposed within the inner cavity of the sleeve formed by the first connecting portion 365B and the second connecting portion 366B. A through hole 369B is provided at the end of the first blocking member 365 corresponding to the end of the first connecting portion 365B connected to the first blocking portion 365A, for exposing the temperature sensor assembly 40. oThe second blocking member 366 is provided with a wire hole 369A for passing the cable 42 of the temperature sensor assembly 40. It will be appreciated that the sleeve-shaped second connecting portion 366B naturally forms the wire hole 369A. When the cooking container 30 is placed in the pot body 20, to protect the temperature sensor assembly 40, the temperature sensor assembly 40 includes a spring 41 extending axially along the cable drum assembly 370. To prevent the temperature sensor assembly 40 from escaping the accommodating space 162A, the first blocking member 365 is provided with a first additional blocking portion 369G, and the second blocking member 366 is provided with a second additional blocking portion 369H. At least a portion of the temperature sensor assembly 40 is positioned axially along the cable drum assembly 370 between the first additional blocking portion 369G and the second additional blocking portion 369H. In this application, the first additional blocking portion 369G refers to the portion of the first blocking member 365 located around the through hole 369B. The diameter of the through hole 369B is smaller than the diameter of the spring 41. The first additional blocking portion 369G can also be understood as a portion of the end wall (top wall) of the first blocking member 365. The second additional blocking portion 369H is an annular step surface provided on the inner wall of the sleeve of the second connecting portion 366B. The diameter of the inner ring of the annular step surface is smaller than the diameter of the spring 41. Thus, the spring 41 is confined between the end wall of the first blocking member 365 and the stepped surface of the second blocking member 366, so that the temperature sensor assembly 40 cannot escape from the inner cavity of the sleeve formed by the first connecting portion 365B and the second connecting portion 366B, and thus cannot escape from the accommodating space 162A. As shown in FIG11 , the disc-shaped winding 382 is located on the lower surface of the wire reel device 360, so that the disc-shaped winding 382 does not interfere with the turntable 390 and can be conveniently connected to the circuit board assembly 22. The driving device 350 is connected to the turntable 390 and is used to drive the turntable 390 (i.e., the disk body 393) to rotate around the central axis PA of the wire reel assembly relative to the disc-shaped winding 382 (i.e., the wire reel frame 380, i.e., the pot body 20). Specifically, the driving device 350 is connected to the support member 162 and is used to drive the support member 162 to rotate around the central axis PA of the wire reel assembly relative to the coiled wire 382 (ie, the wire reel frame 380, ie, the pot body 20).As shown in FIG12 , the drive device 350 includes a drive assembly 51 and a transmission assembly 355. The drive assembly 51 is used to provide the driving force that rotates the disk body 393 and the support member 162 relative to the disk-shaped winding 382. The transmission assembly 355 is connected between the drive assembly 51 and the support member 162 to transmit the driving force to the disk body 393 and the support member 162. As in the first embodiment, the drive assembly 51 is configured as a motor, such as a stepper motor. The transmission assembly 355 includes at least a first transmission wheel 57. The first transmission wheel 57 is coaxially connected to the output shaft of the motor 51 and rotates under the drive of the motor 51. A second transmission wheel 58 is connected to the first transmission wheel 57. The transmission assembly 355 is configured such that the second transmission wheel 58, driven by the first transmission wheel 57, drives the support member 162 and the turntable 390 to rotate synchronously. The connection method and material selection of the first and second transmission wheels 57 and 58 can be referred to the description of the first embodiment. For matters not described in the second embodiment, please refer to the description of the first embodiment. Third Embodiment: FIG14 shows a cable reel device 460 for an electromagnetic heating cooking appliance according to a third embodiment of the present application. Unlike the second embodiment, the turntable 490 of the cable reel assembly 470 of the cable reel device 460 in the third embodiment is constructed differently from the turntable 390 of the second embodiment. Specifically, turntable 490 includes a plate body 493 having a geometric center axis P9 that coincides or substantially coincides with the cable reel assembly central axis PA. Plate body 493 is connected to support member 162 and is spaced apart from the cable reel frame 380 and, consequently, from the coiled wire 382 in the axial direction of the cable reel assembly 470. Plate body 493 is configured to rotate relative to the cable reel frame 380 about the cable reel assembly central axis PA, thereby rotatable relative to the coiled wire 382. The disk body 493 is alternately divided into a first area 491 and a second area 492 along the circumferential direction of the wire disk assembly 470, or the turntable 490 includes at least one first area 491 and at least one second area 492 correspondingly arranged, and the first area 491 and the second area 492 are alternately arranged on the disk body 493 along the circumferential direction of the wire disk assembly 470.The first region 491 comprises a different material than the disk body 493, while the second region 492 is entirely made of the same material as the disk body 493. This ensures that the alternating magnetic field generated by the disk-shaped winding 382 has different magnetic field intensities at the first region 491 and the second region 492, thereby forming an alternating magnetic field that is non-uniformly distributed along the circumference of the wire drum assembly 470. The disk body 493 is made of a first material, such as a non-magnetic material or a metal with a magnetic permeability of 10 B / H or less. The first region 491 is provided with at least one magnetic flux concentrator 495, which is made of a second material different from the first material, such as a metal with a magnetic permeability of 100 B / H or greater. Because the second material has a greater magnetic permeability than the first material, the magnetic lines of force of the alternating magnetic field are focused (concentrated) on the magnetic line of force concentrating member 495, resulting in a greater magnetic field intensity at the first region 491 than at the second region 492. This creates a strong magnetic region in the first region 491 and a weak magnetic region in the second region 492. With respect to the magnetic field of the disc-shaped winding 382, ​​the first and second materials represent different media. A hole or slot can be formed in the disc body 493 in the first region 491, and the magnetic line of force concentrating member 495 can be inserted into the hole or slot. Alternatively, the magnetic line of force concentrating member 495 can be attached to the surface of the disc body 493 in the first region 491. Alternatively, the magnetic line of force concentrating member 495 can be clipped onto the disc body 493. Preferably, the thickness of the magnetic line of force concentrating member 495 is 2 mm to 10 mm. The area of ​​a single magnetic line of force concentrating member 495 is 28 mm² to 5024 mm². 2 oThe total area of ​​the magnetic flux concentrator 495 accounts for 10% to 70% of the area of ​​the disk body 493. This area refers to the surface area corresponding to a single side of the disk body 493. The area of ​​the disk body 493 is the surface area of ​​a single side of the disk body 493 without through-holes or notches, that is, the area of ​​the complete disk surface. The area of ​​the magnetic flux concentrator 495 can be understood as the area of ​​its projection onto the corresponding portion of the complete disk surface of the disk body 493. When the wire reel device 460 is assembled, the distance between the magnetic flux concentrator 495 and the coiled wire 382 is 3.5 mm to 15 mm, that is, the gap between the magnetic flux concentrator 495 and the coiled wire 382 is 3.5 mm to 15 mm. The multiple first regions 491 can be constructed identically or differently. For example, the magnetic flux convergers 495 in each first region 491 can have different shapes (e.g., rectangular, circular, annular, L-shaped, C-shaped, etc., which are not specifically limited in this application. It is understood that at least a portion of the magnetic flux convergers 495 extends along the magnetic flux lines of the disk winding 382), have different numbers, and have different total areas. A first distance exists between two adjacent magnetic flux convergers 495 in each first region 491. The two magnetic flux convergers 495 closest to each other in two adjacent first regions 491 are separated by a second distance. The maximum value of the first distance is smaller than the second distance. In other words, the distance between the magnetic flux concentrators 495 of two adjacent first regions 491 is significantly greater than the distance between two adjacent magnetic flux concentrators 495 within the first region 491. This allows the turntable 490 to form distinct first and second regions 491 and 492, and accordingly, the alternating magnetic field to form distinct strong and weak magnetic regions. Because the disc-shaped winding 382 generates a significant amount of heat when energized, the second region 492 is preferably provided with at least one heat dissipation hole 496 to facilitate heat dissipation. The multiple second regions 492 can be constructed identically or differently, for example, each second region 492 can have a different shape, number, or total area of ​​heat dissipation holes. Therefore, the second embodiment differs from the first embodiment primarily in the formation of the medium in the first region 491 of the turntable 490, which is distinct from the disk body 493.For portions not described in the third embodiment, refer to the descriptions of the first and second embodiments. As shown in FIG15 , in the fourth embodiment of the present application, an electromagnetic heating cooking appliance 500 (hereinafter referred to as cooking appliance 500) has a structure similar to that of cooking appliance 400. The difference from cooking appliance 400 lies in the different structure of the wire reel device 560. As shown in FIG16 , in the wire reel assembly 570, a turntable 490 is positioned below the wire reel frame 380 along the height direction of the cooking appliance 500. The wire reel device 460 is configured so that the turntable 490 is rotatable relative to the wire reel frame about the central axis PA of the wire reel assembly. The structural mechanism of the wire reel device 560 is described in detail below. Specifically, the wire reel device 560 includes a support member 162, a wire reel assembly 570, a rotating auxiliary structure 161, a second blocking member 366, and a temperature sensor assembly 40. The wire reel assembly 570 is mounted on the support member 162. The cable reel assembly includes a coiled wire 382, ​​a cable reel stand 380, and a turntable 490 (also referred to as a turntable body 490). The main components of the coiled wire 382, ​​cable reel stand 380, and turntable 490 are the same as those in the first embodiment. The coiled wire 382 is connected to the support 162. The coiled wire 382 is spirally wound around the surface of the cable reel stand 380 about the central axis PA of the cable reel assembly (see FIG. 17 ). The cable reel stand 380 is connected to the support 162, thereby connecting the coiled wire 382 to the support 162. The turntable body 493 of the turntable 490 is connected to the support 162 and spaced apart from the cable reel stand 380 and, therefore, the coiled wire 382 in the axial direction of the cable reel assembly 570. The turntable body 493 is configured to rotate relative to the cable reel stand 380 about the central axis PA of the cable reel assembly, thereby rotating relative to the coiled wire 382. The first region 491 and second region 492 of the turntable 490 are constructed in the same manner as in the cooking appliance 400 and will not be further described here. The wire coiling rack 380 and the turntable body 493 extend generally parallel to each other, allowing the turntable 490 to effectively interact with the magnetic field generated by the coiled wire 382. Preferably, both the wire coiling rack 380 and the turntable body 493 have radially symmetrical structures, facilitating manufacturing and providing a better fit with the similarly radially symmetrical cooking container 30.Preferably, the axial cross-sections of the wire coiling rack 380 and the tray body 493 are both C-shaped, allowing the coiled wire 382 to wrap around the sidewalls of the cooking container 30. In this application, the wire coiling rack 380 is positioned inside the C-shaped structure of the tray body 493, meaning that the wire coiling rack 380 is used at least above the tray body 493 along the height of the cooking vessel 500. The coiled wire 382 is positioned outside the C-shaped structure of the wire coiling rack 380, meaning that the side of the wire coiling rack 380 facing the tray body 493. The support member 162 is, for example, generally cylindrical. It includes a first end 163 and a second end 164, disposed oppositely in the axial direction of the wire coil assembly 570. In operation, the first end 163 is positioned above the second end 164. The wire coiling rack 380 is connected to the first end 163, and the tray body 493 is connected to the second end 164. The cable reel device 560 is configured so that the reel body 493 is rotatable about the cable reel assembly central axis PA relative to the support member second end 164, and thus relative to the cable reel frame 380. Preferably, the support member 162 and the cable reel frame 380 are integrally formed, for example, by integral injection molding. In other words, the support member 162 and the cable reel frame 380 can be formed as a single component. Specifically, a through hole 599A extending axially along the reel body 493 is provided in or approximately in the center of the reel body 493. The support member 162 is disposed in the through hole 599A. For example, a cylindrical portion 599C extending axially along the disc body 493 is provided at the central portion of the disc body 493. The internal through-hole of the cylindrical portion 599C serves as the disc body through-hole 599A, and the substantial portion of the cylindrical portion 599C serves as the sidewall 599L of the disc body through-hole 599A. The cylindrical portion 599C has a first end 599X and a second end 599Y disposed oppositely along the axial direction of the disc body 493. In operation, the first end 599X is located above the second end 599Y. The first end 599X is connected to the central portion of the disc body 493, while the second end 599Y extends away from the disc body 493. For example, the second end 599Y is located outside the C-shaped structure of the disc body 493.The central axis of the cylindrical portion 599C coincides with the central axis PA of the reel assembly. The support member 162 is adapted to fit within the reel body through-hole 599A, allowing the reel body 493 to rotate relative to the support member 162 about the central axis PA of the reel assembly. For example, the reel device 560 further includes a pivoting substructure 161. The sidewall 599L of the reel body through-hole 599A is connected to the second end 164 of the support member via the pivoting substructure 161, with the axis of the pivoting substructure 161 coinciding with the central axis PA of the reel assembly. For example, the inner circumferential surface of the reel through-hole sidewall 599L is connected to the outer circumferential surface of the second end 164 of the support member via the pivoting substructure 161. The reel through-hole sidewall 599L tightly fits the outer circumference of the pivoting substructure 161, while the second end 164 of the support member tightly fits the inner circumference of the pivoting substructure 161, allowing the turntable 490 to rotate stably about the support member 162. The revolving auxiliary structure 161 is configured, for example, as a rolling revolving auxiliary structure or a sliding revolving auxiliary structure (e.g., a bearing shell or sleeve). Preferably, the revolving auxiliary structure 161 is made of a non-metallic material (e.g., resin or plastic) so as not to interfere with the magnetic field of the coiled wire 382. The wire reel device 560 also includes a second blocking member 566 disposed at the second end 164 of the support member. The second blocking member 566 includes a second blocking portion 566A extending outwardly in the radial direction of the wire reel assembly 570. The outer peripheral surface of the support member 162 includes a blocking surface 599Mo extending radially toward the cylindrical portion 599C of the wire reel assembly 570. The wire reel device 560 is configured such that the revolving auxiliary structure 161 is constrained in the axial direction of the wire reel assembly 570 between the blocking surface 599M and the second blocking portion 566A. The second blocking member 566 is, for example, bonded, clipped, or screwed to the support member 162. The inner circumferential surface of the tray body through-hole 599A is provided with a protrusion 599B extending radially from the cable tray assembly 570 toward the support member 162. The protrusion 599B is configured to contact the side of the pivoting substructure 161 facing the first end 163 of the support member. Thus, the pivoting substructure 161 supports the cylindrical portion 599C, and thus the turntable 490. The cylindrical portion 599C can be considered the main connection portion of the tray body 490 for connecting to the cooking appliance 500.When the wire reel device 560 is placed in the accommodating cavity 21 of the pot body 20, the outer edge of the wire reel stand 380 connects to the cavity wall of the accommodating cavity 21 (see FIG. 15 ), thereby supporting the wire reel stand 380 within the pot body 20. The support member 162 and the second blocking member 566 provide stable support for the swivel substructure 161. The swivel substructure 161, in turn, provides stable support for the turntable 490. As a result, the various components of the wire reel device 560 can be stably assembled and stably supported within the accommodating cavity 21. As shown in FIG. 16 , the support member 162 includes a receiving space 162A for accommodating the temperature sensor assembly 40. The temperature sensor assembly 40 is exposed from the surface of the support member 162, allowing it to contact the cooking container 30 and thereby sense the temperature of the cooking container 30, and therefore the temperature of the food. The temperature sensor assembly 40 is exposed from the first end 163 of the support member. The second end 164 of the support member is provided with a cable outlet for leading out the cable 42 of the temperature sensor assembly 40. Preferably, the accommodating space 162A extends through the support member 162 along the axial direction of the cable drum assembly 570. The second blocking member 566 also includes a second connecting portion 566B connected to the second blocking portion 566A. The second connecting portion 566B, for example, extends inward from the second blocking portion 566A generally along the radial direction of the cable drum assembly 570 to form at least a portion of the outer wall (e.g., the bottom wall) of the accommodating space 162A. Thus, the second connecting portion 566B can support the temperature sensor assembly 40. The second blocking member 566 is provided with a cable hole 569A for passing the cable 42 of the temperature sensor assembly 40. To protect the temperature sensor assembly 40 when the cooking container 30 is placed in the pot body 20, the temperature sensor assembly 40 includes a spring 41 extending along the axial direction of the cable drum assembly 570. In order to protect the temperature sensor assembly 40 from leaving the accommodating space 162A, the first end portion 163 of the support member includes a first additional blocking portion 569G, and at least a portion of the temperature sensor assembly 40 is limited between the first additional blocking portion 569G and the second connecting portion 566B.In the present application, the first additional blocking portion 569G is, for example, the top wall of the accommodating space 162A, which is provided with a circular hole 569H to expose the temperature sensor assembly 40. The diameter of the circular hole 569H is smaller than the diameter of the spring 41. The diameter of the wire hole 569A is also smaller than the diameter of the spring 41. The first additional blocking portion 569G and the second connecting portion 566B limit the spring 41 in the axial direction of the wire spool assembly 570, thereby preventing the temperature sensor assembly 40 from leaving the accommodating space 162A. As shown in FIG16 , the wire coiling rack 380 is located on the periphery of the first end portion 163 of the support member. The coiled wire 382 is coiled around the central axis PA of the wire spool assembly on the surface of the wire coiling rack 380 facing the second end portion 164 of the support member. The coiled wire 382 is not located on the side of the wire coiling rack 380 facing the cooking container 30, which helps protect the coiled wire 382. The turntable 490 is connected to the support member second end portion 164 and is rotatable about the support member 162. The coiled wire 382 is clamped between the wire reel 380 and the turntable 490. To better connect the enameled wire 389B of the disc-shaped winding 382 to the circuit board assembly 22, as shown in FIG18 , a first additional wire hole 169B is provided on the side wall of the accommodating space 162A located at the first end portion 163 of the support member, and a second additional wire hole 569I is provided on the second blocking member 566. The wire 389B of the disc-shaped winding 382 passes through the accommodating space 162A through the first additional wire hole and then passes through the accommodating space 162A through the second additional wire hole 569I. As shown in FIG15 , after passing through the accommodating space 162A through the second additional wire hole 569I, the enameled wire 389B is located below the turntable 490 and does not interfere with the turntable 490, allowing for convenient connection to the circuit board assembly 22. As shown in Figures 15 and 16 , the drive device 50 is connected to the reel body 493 and is used to drive the reel body 493 to rotate relative to the coiled wire 382 (i.e., the coiling frame 380, i.e., the support member 162, i.e., the pot body 20) about the central axis PA of the reel assembly. Specifically, the drive device 50 includes a drive assembly 51 and a transmission assembly 55. The drive assembly 51 is used to provide the driving force that rotates the reel body 493 relative to the coiled wire 382.The transmission assembly 55 is connected between the drive assembly 51 and the disc body 493 to transmit driving force to the disc body 493. The drive assembly 51 is configured, for example, as a motor, and its construction, installation, and control methods are the same as in the first embodiment (see FIG4 ). The transmission assembly 55 includes at least a first transmission wheel 57 and a second transmission wheel 58, the same as in the first embodiment. The second transmission wheel 58 is used to connect to the turntable 490. Preferably, the second transmission wheel 58 is used to connect to the cylindrical portion 599C of the turntable 490. The second transmission wheel 58 is an annular structure that is designed to fit around the outer circumference of the cylindrical portion 599C. As shown in FIG19 , the outer circumference of the cylindrical portion 599C is provided with a connecting structure 599D for connecting to the second transmission wheel 58 of the drive device 50. The connecting structure 599D can be considered a portion of the cylindrical portion 599C. Specifically, the connecting structure 599D includes a first stop surface 599E. The first stop surface 599E extends outward from the outer circumferential surface of the cylindrical portion 599C in the radial direction of the cylindrical portion 599C and toward the second end 599Y of the cylindrical portion, and is used to limit the movement of the second transmission wheel 58 along the axial direction of the cylindrical portion 599C toward the disk body 493. The first stop surface 599E is formed, for example, by an annular rib or an annular step surface on the outer circumferential surface of the cylindrical portion 599C. As shown in FIG4 , the inner circumferential surface of the second transmission wheel 58 is provided with at least one second connector 58F. As shown in FIG19 , the connecting structure 599D includes at least one first connector 599F. The first connector 599F is configured to correspond to and connect to the corresponding second connector 58F. The first connector 599F is closer to the second end 599Y of the cylindrical portion than the first stop surface 599E. When the second transmission wheel 58 is located at the set position of the cylindrical portion 599C, the first connector 599F is used to engage with the second connector 58F to limit the second transmission wheel 58 from rotating relative to the cylindrical portion 599C, so that the second transmission wheel 58 can drive the cylindrical portion 599C to rotate synchronously.In the illustrated embodiment, the first connector 599F is a rib provided on the outer circumferential surface of the cylindrical portion 599C, and the second connector 58F is a retaining groove provided on the inner circumferential surface of the second transmission wheel 58. The retaining groove extends axially of the second transmission wheel 58, and the retaining groove 58F is configured to accommodate the rib 599F. Alternatively, the first connector 599F is a retaining groove provided on the outer circumferential surface of the cylindrical portion 599C, extending axially of the cylindrical portion 599C, and the second connector 58F is a rib provided on the inner circumferential surface of the transmission wheel 58, and the retaining groove 599F is configured to accommodate the rib 58F. Preferably, the second transmission wheel 58 includes a plurality of second connectors 58F, for example, distributed at equal intervals along the circumference of the second transmission wheel 58. The outer circumferential surface of the cylindrical portion 599C is correspondingly provided with a plurality of first connectors 599F. The connecting structure 599D further includes at least one second stopper 599G, which is provided on the outer circumferential surface of the cylindrical portion 599C. The second stopper 599G includes a second stopper surface 599H on the side facing the first end 599X of the cylindrical portion. The second stopper surface 599H extends outward from the outer circumferential surface of the cylindrical portion 599C in the radial direction of the cylindrical portion 599C. The second stopper surface 599H is closer to the second end 599Y of the cylindrical portion 599C than the first stopper surface 599E. Therefore, when the second transmission wheel 58 is mounted on the cylindrical portion 599C, the second transmission wheel 58 is retained in the axial direction of the cylindrical portion 599C between the first stopper surface 599E and the second stopper surface 599H. Because the second stopper 599G protrudes from the outer circumferential surface of the cylindrical portion 599C, to facilitate installation of the second transmission wheel 58, the portions of the cylindrical portion 599C located on either side of the second stopper 599G along the circumferential direction of the cylindrical portion 599C are configured as functional grooves 599J extending in the axial direction of the cylindrical portion 599C. These functional grooves 599J penetrate the sidewall of the cylindrical portion 599C. As a result, the portion of the sidewall of the cylindrical portion 599C corresponding to the second stopper 599G is separated from the sidewalls on both sides, allowing this portion to swing in the radial direction of the cylindrical portion 599C.The second stopper 599G has a first outer surface 5991 located on a side facing away from the axis of the cylindrical portion 599C. This first outer surface 5991 is tilted relative to the axis of the cylindrical portion 599C, such that the distance between the end of the first outer surface 5991 facing the second end 599Y of the cylindrical portion 599C and the axis of the cylindrical portion 599C is less than the distance between the end of the first outer surface 5991 facing the first end 599X of the cylindrical portion 599C and the axis of the cylindrical portion 599C. In other words, the first outer surface 5991 tilts from the outside and top to the inside and bottom. As a result, the outer diameter of the portion of the cylindrical portion 599C that contacts the second stopper 599G gradually increases from bottom to top. When installing the second transmission wheel 58, the second transmission wheel 58 is placed over the outer circumference of the cylindrical portion 599C from bottom to top. The first outer surface 5991 serves as a guide. The functional groove 599J enables the second limit stop 599G to move toward the space within the cylindrical portion 599C under the pressure of the second transmission wheel 58, allowing the second transmission wheel 58 to pass over the second limit stop 599G. When the second transmission wheel 58 moves to a predetermined position, the second limit stop 599G returns to its original position due to the elasticity of the cylindrical portion 599C wall material, retaining the second transmission wheel 58 between the first limit stop surface 599E and the second limit stop surface 599H. Preferably, a plurality of second limit stops 599G are provided on the outer circumference of the cylindrical portion 599C, for example, evenly spaced along the circumference of the cylindrical portion 599C. For the purpose of the disk body 490. In an embodiment not shown in this application, the cooking appliance 500 is configured such that the cooking container 30 can rotate within the pot body 20 under the drive of the drive device 50, while the tray body 490 remains stationary relative to the pot body 20. For example, the outer periphery of the tray body 493 can be connected to the sidewall of the accommodating cavity 21, the second end portion 164 of the support member can be extended downward beyond the cylindrical portion 599C, the second transmission wheel 58 can be connected to the portion of the second end portion 164 of the support member that extends beyond the cylindrical portion 599C, and the first end portion 163 of the support member can be provided with a clutch for connecting with the cooking container 30. Thus, the drive device 50 drives the support member 162 to rotate, and the support member 162, via the clutch, drives the cooking container 30 to rotate synchronously. In this embodiment, the turntable 490 still rotates relative to the coiled wire 382, ​​and the cooking container 30 rotates relative to the turntable 490 about the coil assembly's central axis PA (also known as the geometric central axis P9, also known as the coil rack's central axis P8). This allows the cooking container 30 and the non-uniform magnetic field generated by the coil assembly 570 to still rotate relative to each other. Compared to the third embodiment, in the fourth embodiment, the turntable 490 is closer to the coiled wire 382. In the fourth embodiment, in the operating state (when the coil assembly 560 is assembled), the distance between the magnetic flux concentrator 495 and the coiled wire 382 is 1 mm to 15 mm, meaning the gap between the magnetic flux concentrator 495 and the coiled wire 382 is 1 mm to 15 mm. For details not described in the fourth embodiment, please refer to the descriptions of the first, second, and third embodiments. The fifth embodiment differs from the previous four embodiments in that, in the fifth embodiment shown in Figures 20 to 24 , the electromagnetic heating cooking appliance 600 (hereinafter referred to as cooking appliance 600) is constructed so that the alternating magnetic field generated by the coiled wire 182, which is unevenly distributed along the circumference of the wire reel assembly 670, remains stationary relative to the pot body 20. Instead, the cooking container 30 rotates about the central axis PA of the wire reel assembly, thereby achieving relative rotation between the cooking container 30 and the magnetic field. As shown in Figures 21 and 22 , the structure of the wire reel assembly 670 in the fifth embodiment is substantially the same as that of the wire reel assembly 170 in the first embodiment.The cable reel assembly 670 includes a cable reel frame 180, at least one cable reel support 183, and at least one cable coil 182. The cable reel frame 180 has a central axis P8, which is also the central axis PA of the cable reel assembly. Cable reel supports 683 are spaced apart circumferentially around the cable reel frame 180. Coiled cables 182 are wound around the cable reel supports 683, such that the cable coils 182 are spaced apart circumferentially around the cable reel frame 180. The winding centers of the cable coils 182 are aligned with the axis of the cable reel support 683. The axis of the cable reel support 683 is offset from the central axis P8, resulting in the cable coils 182 being non-concentric with the cable reel frame 180. In a specific implementation, multiple coil supports 683 can be evenly spaced along the circumference of coil rack 180. Magnetic conductive elements can also be provided on coil supports 683 to further focus the magnetic lines of force of the magnetic field of coiled wire 182. Coiled wire 182 is formed, for example, by winding enameled wire 189. Enameled wire 189 includes a coiled portion 182A and two end portions 182B. Coiled portion 182A is coiled around the winding center into a coil shape, forming an effective resonant inductor of the electromagnetic heating resonant circuit. End portions 182B are portions of enameled wire 189 not used to form the effective resonant inductor, and coiled portion 182A is located between the two end portions 182B. At least some of the multiple coiled wires 182 are connected in series, that is, they are coiled from the same enameled wire 189. Alternatively, the multiple coiled wires 182 do not share a common wire, that is, each coiled wire is coiled from its own enameled wire 189. Preferably, the coiling rack 180 is provided with a bunching member 180P for gathering all the terminal portions 182B. The terminal portions 182B are connected to the circuit board assembly 22 via the cable assembly 29, so that the circuit board assembly 22 can supply power to the coiled wires 182. As shown in FIG23 , the cable reel device 660 of the cooking appliance 600 includes a clutch 46, a cable reel assembly 670, and a temperature sensor assembly 40. The temperature sensor assembly has a central axis P4. In the assembled state, the central axis P4 coincides with or substantially coincides with the central axis PA of the cable reel assembly. The temperature sensor assembly 40 includes a housing 43 for contacting the bottom surface of the cooking container 30 and a cable 484 extending from the housing 43.The temperature sensor assembly 40 is configured so that the housing 43 and the cable 484 can rotate relative to each other about the temperature sensor assembly's central axis P4. In the fifth embodiment, the cable 484 is configured to maintain a fixed relative position to the cable reel 180. For example, the outer periphery of the cable reel 180 is connected to the sidewall of the accommodating cavity 21, and the mounting support for the cable 484 is fixed to the cavity wall of the accommodating cavity 21. Thus, the cable reel 180 is mechanically connected to the cavity wall of the accommodating cavity 21, maintaining a fixed relative position between the two. The cable reel device 660 is configured so that the housing 43 can rotate relative to the cable 484 about the cable reel's central axis P8, thereby driving the cooking container 30 to rotate synchronously with the cable 484 about the cable reel's central axis P8, thereby enabling the cooking container 30 to rotate relative to the cable reel 180 about the cable reel's central axis P8. As shown in Figures 21 and 22, a cylindrical portion 188C is provided at or approximately at the center of the cable reel 180. This cylindrical portion 188C extends axially along the cable reel 180, and a cable reel through-hole 188A is formed within the cylindrical portion 188C. The temperature sensor assembly 40 is disposed within the cable reel through-hole 188A. In other words, the cable reel 180 is sleeved around the outer periphery of the housing 43. The temperature sensor assembly 40 fits within the cable reel through-hole 188A, allowing the housing 43 of the temperature sensor assembly 40 to rotate relative to the cable reel 180 about the central axis P8 of the cable reel. For example, as shown in Figure 23, the sidewall of the cable reel through-hole 188A is connected to the outer circumference of the housing 43 via a pivoting substructure 161. The axis of the pivoting substructure 161 coincides with the central axis P8 of the cable reel. The rotary auxiliary structure 161 can optionally be configured as a rolling bearing, so that the inner ring of the rolling bearing 161 tightly fits the outer circumferential surface of the housing 43, and the outer ring of the rolling bearing 161 tightly fits the inner circumferential surface of the coil through-hole 188A. As an alternative embodiment, the rotary auxiliary structure 161 can also be configured as a sliding sleeve. To prevent electromagnetic interference, the rotary auxiliary structure 161 can further be selectively made of a non-metallic material. The drive device 50 is used to drive the housing 43 of the temperature sensor assembly 40 to rotate. The structure of the drive device 50 is the same as in the first embodiment and will not be further described here.The second transmission wheel 58 is connected to the housing 43, for example, being sleeved on the outer circumference of the housing 43. As shown in Figures 23 and 24, the housing 43 includes a first end 431 and a second end 432, which are arranged in opposite directions along the axial direction of the cable reel 180. The first end 431 is configured to contact the bottom surface of the cooking container 30, and the second end 432 is provided with a cable outlet for leading out the cable 484 of the temperature sensor assembly 40. The axial direction of the temperature sensor assembly 40 is also the axial direction of the cable reel 180, and the radial direction of the temperature sensor assembly 40 is also the radial direction of the cable reel 180. It will be understood that electronic components for temperature sensing, such as thermistors, are disposed within the housing 43. The leads of these electronic components are led out through the cable 484 and then connected to the circuit board assembly 22. Preferably, the rotary substructure 161 is connected to the first end 431 of the housing 43, and the second transmission wheel 58 is connected to the second end 432 of the housing 43. This allows the drive device 50 to be positioned below the reel 180 when assembled, facilitating placement of the drive device 50. As shown in FIG24 , a connecting structure 45 for connecting to the second transmission wheel 58 of the drive device 50 is provided on the outer circumferential surface of the housing 43 of the temperature sensor assembly 40. This allows the housing 43 to rotate relative to the reel 180 about the reel's central axis P8 when driven by the drive device 50. Specifically, the connecting structure 45 includes a first stop surface 453 extending outward from the outer circumferential surface of the temperature sensor assembly 40 in a radial direction of the temperature sensor assembly 40, thereby limiting movement of the transmission wheel 58 along the axis of the temperature sensor assembly 40 toward the reel 180. For example, the housing 43 includes a first blocking portion 433 extending outward in the radial direction, with a surface thereof facing the second end portion 432 forming a first limit stop surface 453. Preferably, the rotary secondary structure 161 is disposed on a side of the first blocking portion 433 facing the first end portion 431, so that the first blocking portion can also limit the axial position of the rotary secondary structure.The inner circumferential surface of the second transmission wheel 58 is provided with at least one second connector 58F (see FIG. 4 ). The connection structure 45 also includes at least one first connector 451, which is configured to correspond to and connect with the second connector 58F. The first connector 451 is closer to the second end 432 than the first stop surface 453. When the second transmission wheel 58 is installed in the set position, the first connector 451 engages with the second connector 58F to restrict rotation of the second transmission wheel 58 relative to the connection structure 45. In the illustrated embodiment, the connection structure 45 includes a plurality of first connectors 451, which are spaced apart, for example, at equal intervals, along the circumference of the temperature sensor assembly 40. Preferably, the second connector 58F is a retaining groove provided on the inner circumferential surface of the second transmission wheel 58, extending in the axial direction of the second transmission wheel 58. The first connector 451 is a rib provided on the outer circumferential surface of the temperature sensor assembly 40, and the retaining groove of the second connector 58F is configured to accommodate the rib of the first connector 451. The connection structure 45 also includes at least one second retaining stop 456 provided on the outer circumferential surface of the housing 43 of the temperature sensor assembly 40. The side of the second retaining stop 456 facing the first end 431 includes a second retaining surface 454. The second retaining surface 454 extends outward from the outer circumferential surface of the temperature sensor assembly 40 in the radial direction of the temperature sensor assembly 40. The second retaining surface 454 is closer to the second end 432 than the first retaining surface 453. The second retaining surface 454, together with the first retaining surface 453, defines the axial position of the second transmission wheel 58. The second limit stop 456 has a first outer surface 455 located on the side facing away from the central axis P4 of the temperature sensor assembly 40. The first outer surface 455 is constructed to be inclined relative to the central axis P4 of the temperature sensor assembly 40, so that the distance between the end of the first outer surface 455 facing the second end 432 and the central axis P4 of the temperature sensor assembly 40 is smaller than the distance between the end of the first outer surface 455 facing the first end 431 and the central axis P4 of the temperature sensor assembly 40.Portions of the housing 43 of the temperature sensor assembly 40, located on either side of the second stopper 456 along the circumferential direction of the temperature sensor assembly 40, are configured as functional slots 457 extending in the axial direction of the temperature sensor assembly 40. The functional slots 457 penetrate the sidewalls of the housing 43 of the temperature sensor assembly 40. The housing 43 is made of, for example, plastic, resin, or other materials. When the second transmission wheel 58 is mounted on the housing 43, it is sleeved onto the second end 432. The first outer surface 455 serves as a guide and is also referred to as a guide slope. The second stopper 456 is also referred to as a limit guide structure. The guide slopes 455 facilitate movement of the second transmission wheel 58 to a predetermined position. Furthermore, by providing the through-going functional slots 457 on either side of the limit guide structure 456, the limit guide structure 456, in a cantilevered position, swings toward the cavity within the housing 43 during installation, facilitating installation of the second transmission wheel 58. When the second transmission wheel 58 reaches the preset position (passes the second limit stop surface 454), the limit guide structure 456 resets itself using its elastic deformation, clamping the second transmission wheel 58 between the second limit stop surface 454 and the first limit stop surface 453. In the illustrated embodiment, the connection structure 45 includes a plurality of second limit stops 456, spaced apart, for example, at equal intervals, along the circumference of the temperature sensor assembly 40. The clutch 46 is configured to detachably connect to the bottom surface of the cooking container 30. When the cooking container 30 is placed in the accommodating cavity 21, the clutch 46 contacts the bottom of the cooking container 30. The clutch 46 is connected to the housing 43, for example, disposed at the first end 431 of the housing 43, for example, sleeved around the outer circumference of the first end 431, so that the clutch 46 and the housing 43 can rotate synchronously relative to the pot body 20 about the temperature sensor central axis P4. For example, the cooking container 30 includes a ferromagnetic material, and the clutch member 46 is configured to have magnetism, so that the two are magnetically connected; and / or, the clutch member 46 is configured to engage with the bottom surface of the cooking container 30.As shown in Figure 23 , the clutch member 46 is provided with, for example, a limiting through-hole 461. The first end 431 of the housing 43 passes through the limiting through-hole 461, allowing the clutch member 46 to be sleeved on the first end 431. As shown in Figure 24 , the housing 43 of the temperature sensor assembly 40 further includes a second blocking portion 434 extending radially outward, configured to contact the side of the clutch member 46 facing the second end 432 of the housing 43. This allows the clutch member 46 to maintain a stable axial position. For portions not described in the fifth embodiment, refer to the descriptions of the first, second, third, and fourth embodiments. Sixth Embodiment: In the sixth embodiment shown in Figure 25 , the cooking appliance 700 is configured to rotate the cooking container 30, similar to the fifth embodiment. The cable reel assembly 170 of the cooking appliance 700 is constructed in the same manner as in the first and fifth embodiments. By arranging the coiled wire 182 non-concentrically with the cable reel 180, a non-uniformly distributed magnetic field is generated along the circumference. The drive device 750 is used to drive the cooking container 30 to rotate about the central axis PA of the wire reel assembly relative to the wire reel frame 182. In this embodiment, the drive device 750 directly contacts the wall of the cooking container 30. For example, the drive device 750 includes a motor 51 and a friction wheel 755. The motor 51 is, for example, located in the pot body (not shown). The friction wheel 755 is coaxially connected to the output shaft 59 of the motor 51 and rotates under the drive of the motor 51. Preferably, when the cooking container 30 is located in the pot body, the friction wheel 755 contacts the edge of the cooking container 30's mouth, driving the cooking container 30 to rotate through friction. Of course, the friction wheel 755 can also contact other parts of the cooking container 30's wall to cause the cooking container 30 to rotate. The drive device 750 can also be located on the lid or other parts of the cooking appliance. For any parts not described in the sixth embodiment, please refer to the description of the first to fifth embodiments above. The electromagnetic heating cooking appliance according to the present application can construct a magnetic field with a non-uniform distribution along the circumferential direction, and make the magnetic field rotate relative to the cooking container, so that the heated part of the cooking container rotates on the cooking container, thereby uniformly heating the cooking container.The electromagnetic heating cooking appliances according to the present application may include various types, such as rice cookers, electric pressure cookers, electric hot pots, and induction cookers. Those skilled in the art may adjust the structure based on the above embodiments according to specific needs. The processes and steps described in all the preferred embodiments are merely examples. Unless adverse effects occur, various processing operations may be performed in a different order from the above processes. The order of steps in the above processes may also be increased, combined, or deleted according to actual needs. When interpreting the scope of this application, the term "comprising" and its derivatives as used herein are intended to be open-ended terms that specify the presence of recited features, elements, components, groups, entities, and / or steps, but do not exclude the presence of other unrecited features, elements, components, groups, entities, and / or steps. This concept also applies to words with similar meanings, such as the terms "including," "having," and their derivatives. As used herein, the term "attached" or "attached" includes: configurations where an element is directly secured to another element by securing it directly to the other element; configurations where an element is indirectly secured to the other element by securing it to an intermediate member that is in turn secured to the other element; and configurations where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "adhere," "secure," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent an amount of deviation that modifies the term such that the end result is not significantly changed. Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application relates. The terminology used herein is for the purpose of describing specific implementations only and is not intended to be limiting of this application. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the feature is not applicable in the other embodiment or otherwise indicated.The present application has been described through the above-described embodiments. However, it should be understood that the above-described embodiments are provided for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. Furthermore, those skilled in the art will appreciate that the present application is not limited to the above-described embodiments. Numerous variations and modifications may be made based on the teachings of the present application, and all such variations and modifications fall within the scope of protection claimed in the present application.

Claims

Claims 1. An electromagnetic heating cooking device (100; 300; 400; 500; 600; 700), characterized in that it comprises: A wire reel assembly (170; 370; 470; 570; 670), the wire reel assembly comprising at least one coiled wire (182; 382), the coiled wire (182; 382) being used to generate an alternating magnetic field after being energized, the wire reel assembly (170; 370; 470; 570; 670) having a wire reel assembly central axis (PA), the wire reel assembly being configured such that the magnetic field intensity of the alternating magnetic field is non-uniformly distributed along the circumferential direction of the wire reel assembly; and a cooking container (30) for holding food, the cooking container having a cooking container central axis (P3), the cooking container comprising ferromagnetic material, and the cooking container (30) as a whole being in the shape of a body of revolution with the cooking container central axis (P3) as an axis, the cooking container (30) and the wire reel assembly (170; 370; 470; 570; 670) is detachably arranged in the magnetically inductive area of ​​the wire reel assembly, the central axis (P3) of the cooking container substantially coincides with the central axis (PA) of the wire reel assembly, wherein the electromagnetic heating cooking appliance is constructed such that the cooking container (30) can rotate around the central axis (P3) of the cooking container relative to the wire reel assembly (170; 370; 470; 570; 670), or at least a portion of the wire reel assembly can rotate around the central axis (PA) of the wire reel assembly relative to the cooking container (30).

2. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 1, wherein: The wire drum assembly (170; 370; 470; 570; 670) includes one coiled wire (182; 382), the winding center of which is offset from the central axis (PA) of the wire drum assembly; or the wire drum assembly (170; 370; 470; 570; 670) includes at least two coiled wires (182; 382), all of which are arranged at intervals along the circumferential direction of the wire drum assembly.

3. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 2, wherein: The wire reel assembly further comprises a wire reel rack (180; 380) which is arranged on one side of the cooking container (30), the wire reel rack (180; 380) being configured to be rotatable around a central axis (PA) of the wire reel assembly, wherein the coiled wire (182; 382) is arranged on the wire reel rack (180; 380).

4. The electromagnetic heating cooking device according to claim 3 (100; 300; 400; 500; 600; 700), among which, The coiled wire (182; 382) is arranged in a coiled shape on the coiling rack (180; 380).

5. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 3 or 4, wherein the distance between the coiled wire (182; 382) and the cooking container (30) is 3 mm to 30 mm.

6. The electromagnetic heating cooking appliance (100; 300; 400; 500; 600; 700) according to any one of the above claims, wherein the wire reel assembly further comprises a magnetic conductive member (185), and the magnetic conductive member (185) at least partially extends along the magnetic lines of force of the alternating magnetic field.

7. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of the above claims, wherein: The coiled wire (182; 382) is coiled around the central axis (PA) of the wire drum assembly and forms a radially symmetrical shape with the central axis (PA) of the wire drum assembly as an axis.

8. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of the above claims, wherein: The wire reel assembly (170; 370; 470; 570; 670) further comprises a reel body (390; 490), the reel body comprising: a reel body (393; 493), the reel body having a geometric center axis (P9), the geometric center axis (P9) being a center axis (PA) of the wire reel assembly, the reel body being configured to be rotatable relative to the disc-shaped winding (182; 382) around the center axis (PA) of the wire reel assembly; and at least one first region (391; 491) and at least one second region (392; 492) being arranged correspondingly, the first region and the second region being alternately arranged on the reel body (393; 493) along a circumferential direction of the reel body (393; 493), the first region (391; 491) comprising a medium different from that of the reel body (393; 493), So that the magnetic field strength of the alternating magnetic field in the first region (391; 491) is different from the magnetic field strength in the second region (392; 492).

9. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 8, wherein: The wire reel assembly further comprises a wire reel rack, which is used to be arranged on one side of the cooking container, wherein the coiled wire (182; 382) is coiled around the central axis (PA) of the wire reel assembly on the surface of the wire reel rack (180; 380), and the reel body (393; 493) is configured to be rotatable relative to the wire reel rack (180; 380) around the central axis (PA) of the wire reel assembly.

10. The electromagnetic heating cooking utensil (100; 300; 400; 500; 600; 700) according to claim 8 or 9, wherein the plate body (393; 493) is made of a material having a magnetic permeability less than or equal to 10 B / H. The first region (391; 491) comprises at least one opening (394) for allowing magnetic lines of force of the alternating magnetic field to pass through. 1 1. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700), of which, The distance between the disc body (393; 493) and the disc winding (182; 382) is 3. 5mm to 10mm; and / or the thickness of the disc body (393; 493) is 0. 4mm to 2mm.

12. The electromagnetic heating cooking device according to claim 10 (100; 300; 400; 500; 600; 700), of which, The area of ​​a single opening (394) is 28 mm2 to 5024 mm 2 ; and / or the area of ​​all the openings (394) accounts for 10% to 70% of the area of ​​the disc body (393; 493) o 13. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of claims 8 to 12, wherein: The disk body (393; 493) is made of a first material, the first region (391; 491) is provided with at least one magnetic field line gathering member (495), and the magnetic field line gathering member comprises a second material different from the first material.

14. The electromagnetic heating cooking device according to claim 13 (100; 300; 400; 500; 600; 700), of which, The first material is a non-magnetic material or a metal with a magnetic permeability less than or equal to 10 B / H, and the second material is a metal with a magnetic permeability greater than or equal to 100 B / H.

15. The electromagnetic heating cooking device according to claim 13 or 14 (100; 300; 400; 500; 600; 700), of which, The magnetic line of force gathering member (495) is connected to the disk body (393; 493) via at least one of the following connection structures: the magnetic line of force gathering member (495) is embedded in the disk body (393; 493), the magnetic line of force gathering member (495) is attached to the surface of the disk body (393; 493), and the magnetic line of force gathering member (495) is snap-fitted and connected to the disk body (393; 493).

16. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700), of which, The distance between the magnetic flux gathering member (495) and the disc-shaped winding (182; 382) is 1 mm to 15 mm; and / or the thickness of the magnetic flux gathering member (495) is 2 mm to 10 mm.

17. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700), of which, The area of ​​a single magnetic field line gathering member (495) is 28 mm2 to 5024 mm 2 ; and / or the area of ​​the entire magnetic field line gathering member (495) accounts for 10% to 70% of the area of ​​the disk body (393; 493) o 18. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of claims 8 to 17, wherein: The second area (392; 492) is provided with at least one heat dissipation hole (496).

19. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 7, wherein: In a projection of the wire drum assembly (170; 370; 470; 570; 670) along the extension direction of the central axis (PA) of the wire drum assembly, the disc-shaped winding (182; 382) forms an annular area or a circular area with the central axis (PA) of the wire drum assembly as the center.

20. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of the preceding claims, further comprising a driving device (50; 350; 750), the driving device being connected to the wire reel assembly (170; 370; 470; 570; 670), or the driving device being connected to the cooking container (30) for driving the connected wire reel assembly or the cooking container to rotate.

21. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 20, wherein: The driving device (50; 350; 750) comprises: a driving component (51) for providing a driving force; and a transmission component (55; 355) connected to the driving component (51) for transmitting the driving force.

22. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 21, wherein: The driving component (51) is configured as a motor; and / or the electromagnetic heating cooking appliance further comprises a grounding wire (53), one end of the grounding wire being connected to the housing of the driving component (51), and the other end of the grounding wire (53) being connected to the grounding terminal of the electromagnetic heating cooking appliance.

23. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 21, wherein: The driving assembly (51) is configured as a motor, and the transmission assembly (55; 355) comprises at least: a first transmission wheel (57) coaxially connected to an output shaft (59) of the motor so as to rotate under the drive of the motor; and a second transmission wheel (58) connected to the wire drum assembly (170; 370; 470; The transmission assembly (55; 355) is connected to the first transmission wheel (57), and is connected to the first transmission wheel (57). The transmission assembly (55; 355) is configured so that the second transmission wheel (58) drives the connected wire drum assembly (170; 370; 470; 570; 670) or the cooking container (30) to rotate synchronously under the drive of the first transmission wheel (57).

24. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of claims 21 to 23, wherein: The transmission assembly (55; 355) is made of non-metallic material.

25. The electromagnetic heating cooking appliance (100; 300; 400; 500; 600; 700) according to any one of claims 20 to 24, further comprising a magnetic shield (52), wherein the magnetic shield is used to cover at least part of the driving device (50; 350; 750) to shield the alternating magnetic field.

26. The electromagnetic heating cooking appliance (100; 300; 400; 500; 600; 700) according to claim 25, further comprising a grounding wire (53), one end of the grounding wire being connected to the magnetic shield (52), and the other end of the grounding wire (53) being connected to a ground terminal of the electromagnetic heating cooking appliance.

27. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of claims 20 to 26, wherein: The driving device (50; 350; 750) is used to contact a container wall of the cooking container (30) to drive the cooking container (30) to rotate around a central axis (P3) of the cooking container relative to the wire reel assembly (170; 370; 470; 570; 670).

28. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 27, wherein: The driving device (50; 350; 750) comprises: a motor for providing a driving force; and a friction wheel (755) coaxially connected to an output shaft (59) of the motor so as to rotate under the drive of the motor, wherein the friction wheel (755) is used to contact a container wall of the cooking container (30).

29. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of the preceding claims, wherein: The electromagnetic heating cooking appliance is an electric rice cooker, an electric pressure cooker, an electric stew pot, an electric hot pot, an electric kettle or an induction cooker.

30. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to any one of claims 1 to 29, wherein: The wire drum assembly (170; 370; 470; 570; 670) is constructed so that the alternating magnetic field has N strong magnetic regions and N weak magnetic regions that are alternately distributed along the circumferential direction of the wire drum assembly, wherein the magnetic field strength of the strong magnetic region is greater than the magnetic field strength of the weak magnetic region, the N strong magnetic regions are evenly spaced along the circumferential direction of the wire drum assembly, and the N weak magnetic regions are evenly spaced along the circumferential direction of the wire drum assembly, and N is greater than or equal to 1. Integer.

31. The electromagnetic heating cooking device (100; 300; 400; 500; 600; 700) according to claim 30, wherein: The electromagnetic heating cooking appliance is constructed so that at least a portion of the wire reel assembly (170; 370; 470; 570; 670) and one of the cooking containers (30) can rotate ±180 / N degrees relative to the other.

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