Wire coil device and electromagnetic heating cooking utensil

Abstract

The invention discloses a wire coil device and an electromagnetic heating cooking utensil. The wire coil device is used for the electromagnetic heating cooking utensil and comprises a supporting piece, a wire coil assembly and a wire connecting assembly. The wire coil assembly is arranged on the supporting piece and provided with a coil assembly central axis. The wire coil assembly comprises a wire winding frame and a first enameled wire. The wire coiling frame is connected to the supporting piece and can rotate around the central axis of the wire coil assembly relative to the supporting piece. The first enameled wire is provided with a first connecting point position and a second connecting point position along the length, the part, between the first connecting point position and the second connecting point position, of the first enameled wire is wound around the winding center to form disc-shaped winding wires, the disc-shaped winding wires are arranged at intervals along the circumferential direction of the winding frame, and the winding center deviates from the central axis of the winding frame. The wire connecting assembly is arranged corresponding to the first enameled wire, one end of the wire connecting assembly is used for being connected to the first connecting point and the second connecting point, and the other end of the wire connecting assembly is used for being connected with a circuit board assembly used for supplying power, so that the disc-shaped winding wire and the circuit board assembly are always conducted.

Description

Technical Field

[0001] The present application relates to the technical field of cooking utensils, and in particular to a wire reel device and an electromagnetic heating cooking utensil having the wire reel device. Background Art

[0002] The heating coils of existing electromagnetic heating cooking appliances remain stationary, resulting in a relatively single heating method, a relatively stable convection heating form, and a problem of uneven local heating. Taking an electric rice cooker as an example, after cooking, the rice is prone to problems such as partial mushyness or dryness.

[0003] Therefore, a wire reel device and an electromagnetic heating cooking appliance are needed to at least partially solve the above problems. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description of the Invention section. The Summary of the Invention section of this application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the first aspect of the present application provides a wire reel device for electromagnetic heating cooking utensils, comprising:

[0006] Supports;

[0007] A wire drum assembly is connected to the support member, the wire drum assembly has a central axis of the wire drum assembly, and the wire drum assembly includes:

[0008] a wire drum rack connected to the support and rotatable relative to the support about the central axis of the wire drum assembly, and

[0009] At least one first enameled wire, each of the first enameled wires having a first connection point and a second connection point along its length, a portion of each of the first enameled wires located between the first connection point and the second connection point being coiled around at least one winding center to form at least one disc-shaped winding wire, for forming a resonant inductor of an electromagnetic heating resonant circuit, the disc-shaped winding wires being arranged at intervals along the circumferential direction of the winding frame, the winding center being offset from a central axis of the winding frame; and

[0010] At least one connection component is arranged corresponding to the first enameled wire, one end of the connection component is used to connect to the first connection point and the second connection point, and the other end of the connection component is used to connect to the circuit board assembly, so that the disc winding and the circuit board assembly always remain conductive, wherein the circuit board assembly is used to supply power to the disc winding.

[0011] According to the present application, by enabling the wire coil rack to rotate relative to the support, the wire coil rack can drive the coiled wire and the magnetic field of the coiled wire disposed thereon to rotate, and then the cooking utensil including the wire coil rack can achieve the effect of multi-point heat source rotation heating; at the same time, the convection heating form of the cooking utensil will also change, so that the processed food is heated more evenly, and then a better cooking effect is achieved. The connection assembly enables the coiled wire to be always electrically connected to the circuit board assembly during the rotation process, thereby ensuring that the coiled wire can always provide a magnetic field for heating.

[0012] Optionally, the wiring component includes:

[0013] a first wiring segment, one end of which is used to connect to the first connection point, and the other end of which is used to connect to the circuit board assembly;

[0014] A second wiring segment, one end of the second wiring segment is used to connect to the second connection point, and the other end of the second wiring segment is used to connect to the circuit board assembly.

[0015] According to the present application, both ends of the coiled wire are respectively connected to the circuit board assembly.

[0016] Further, the first wiring segment can be a segment of the first enameled wire located on the opposite side of the first connection point to the coil winding; and / or the second wiring segment can be a segment of the first enameled wire located on the opposite side of the second connection point to the coil winding.

[0017] According to the present application, the connecting wire assembly is an extension of the first enameled wire and has a simple construction.

[0018] Optionally, the first enameled wire comprises:

[0019] a coiled portion, coiled around the winding center on the coiling frame, for forming an effective resonant inductance of the electromagnetic heating resonant circuit, and

[0020] Two terminal portions, the terminal portions are portions of the first enameled wire that are not used to form the effective resonant inductor, the winding portion is located between the two terminal portions, and the ends of the two terminal portions away from the winding portion are respectively the first connection point and the second connection point.

[0021] According to the present application, the portion of the coiled wire coiled around the center of the winding wire forms an effective resonant inductance of the electromagnetic heating resonant circuit.

[0022] Optionally, a cylindrical portion is provided in the central portion of the wire reel for connecting to a driving device for driving the wire reel to rotate, a first end of the cylindrical portion is connected to the central portion of the wire reel, a second end of the cylindrical portion extends in a direction away from the wire reel, the coiled wire is provided on a side of the wire reel facing the second end of the cylindrical portion, and at least a portion of the terminal portion is routed along the outer circumferential surface of the cylindrical portion.

[0023] According to the present application, by providing a cylindrical portion at the central portion of the cable drum, it can be used not only for connection with a driving device but also for wiring.

[0024] Optionally, the outer circumferential surface of the cylindrical portion is provided with at least one first bundling member for gathering all of the terminal portions to the outer circumferential surface of the cylindrical portion so that at least part of the terminal portions are routed along the outer circumferential surface of the cylindrical portion.

[0025] According to the present application, by arranging a first bundling member in the cylindrical portion, the first bundling member can better constrain the end portion of the enameled wire to prevent the end portion of the enameled wire from becoming entangled, hooked, or other problems during the rotation of the disc-shaped winding reel.

[0026] Optionally, a plurality of the first bundling members are provided on the outer circumferential surface of the cylindrical portion, and the plurality of the first bundling members are spaced apart along the axial direction of the cylindrical portion so that at least a portion of the terminal portion is wired along the axial direction of the cylindrical portion on the outer circumferential surface of the cylindrical portion, wherein the portion of the terminal portion wired along the outer circumferential surface of the cylindrical portion has a third connection point and a fourth connection point, the third connection point is closer to the first end of the cylindrical portion than the fourth connection point, and the third connection point is closer to the winding portion than the fourth connection point along the length of the first enameled wire.

[0027] According to the present application, by providing a plurality of first bundling members on the cylindrical portion and arranging the plurality of first bundling members at intervals along the axial direction of the cylindrical portion, the terminal portion can be better constrained by the plurality of first bundling members along the axial direction of the cylindrical portion.

[0028] Optionally, the first bundle includes:

[0029] a first restraining portion extending from an outer peripheral surface of the cylindrical portion toward a direction away from the cylindrical portion;

[0030] A second constraint portion, wherein the second constraint portion is connected to an end of the first constraint portion away from the outer circumferential surface of the cylindrical portion and extends generally along the circumferential direction of the cylindrical portion, so that a limiting groove is formed between the second constraint portion and the outer circumferential surface of the cylindrical portion, and the entire terminal portion is gathered in the limiting groove.

[0031] According to the present application, by making the first bundling member include a limiting slot formed by the first constraint portion and the second constraint portion, the terminal portion can be quickly gathered in the limiting slot, making the wiring process more convenient and easy to operate.

[0032] Optionally, the second constraint portion is extended toward both sides from one end of the first constraint portion away from the outer circumferential surface of the cylindrical portion along the circumferential direction of the cylindrical portion, and a first limit slot and a second limit slot are formed on both sides of the first constraint portion, and all the end portions having the first connection point are gathered in the first limit slot, and all the end portions having the second connection point are gathered in the second limit slot.

[0033] According to the present application, by forming a first limiting slot and a second limiting slot on both sides of the first bundling portion, the terminal portions can be grouped and fixed, which can effectively reduce the probability of short circuit in the disc winding.

[0034] Optionally, a wire drum through hole is formed inside the cylindrical portion, the wire drum through hole extends along the axial direction of the wire drum rack, and the support member is adapted to the wire drum through hole, so that the wire drum rack can rotate around the central axis of the wire drum assembly relative to the support member.

[0035] Furthermore, at least a portion of the support member is disposed in the wire drum through hole, and the wire drum through hole and the support member are connected via a rotary auxiliary structure, wherein the axis of the rotary auxiliary structure coincides with the central axis of the wire drum assembly.

[0036] According to the present application, the swivel substructure enables the cable drum to stably rotate around the support member.

[0037] It may further be possible to form an annular groove on the outer periphery of the support member for accommodating the rotary auxiliary structure.

[0038] According to the present application, the card slot can prevent the cable drum rack from moving.

[0039] Optionally, the inner circumferential surface of the wire drum through hole has a blocking surface extending toward the cylindrical portion along the radial direction of the wire drum through hole, and the blocking surface is used to contact the side of the rotary auxiliary structure facing the first end of the support member.

[0040] According to the present application, by providing a blocking surface in the through hole of the wire drum, the blocking surface can be used to connect with the rotary sub-structure, and at the same time, the rotary sub-structure can be prevented from shifting in the axial direction.

[0041] Optionally, a connection structure for connecting to the driving device is provided on the outer peripheral surface of the cylindrical portion, and the central axis of the cylindrical portion coincides with the central axis of the wire coiling rack.

[0042] It is further possible that a second transmission wheel is integrally formed on or connected to the connecting structure, the second transmission wheel is connected to the cylindrical portion, and the axis of the second transmission wheel coincides with the central axis of the cylindrical portion; or, the driving device includes a second transmission wheel, the second transmission wheel is an annular structure, and is used to be sleeved on the outer periphery of the cylindrical portion, and the connecting structure is used to connect the second transmission wheel.

[0043] According to the present application, the connection method between the cylindrical portion and the driving device is flexible.

[0044] Optionally, the connecting structure includes a first limit stop surface, which extends outward from the outer peripheral surface of the cylindrical portion along the radial direction of the cylindrical portion and toward the second end of the cylindrical portion, and is used to limit the movement of the second transmission wheel along the axial direction of the cylindrical portion toward the wire coil rack.

[0045] According to the present application, by making the connection structure include the first limit stop surface, the second transmission wheel can be axially limited to prevent the second transmission wheel from moving toward the disc-shaped winding reel.

[0046] Optionally, at least one second connecting body is provided on the inner circumferential surface of the second transmission wheel, the connecting structure includes at least one first connecting body, the first connecting body is provided corresponding to the second connecting body, and is used to connect the second connecting body, and the first connecting body is closer to the second end of the cylindrical portion than the first limit stop surface;

[0047] When the second transmission wheel is installed at a set position, the first connecting body is engaged with the second connecting body to limit the second transmission wheel from rotating relative to the connecting structure.

[0048] Furthermore, the connection structure may include a plurality of the first connection bodies arranged at intervals along the circumferential direction of the cylindrical portion.

[0049] According to the present application, by making the connection structure include a plurality of connection bodies spaced circumferentially, the second transmission wheel and the connection structure can be connected at multiple points in the circumferential direction to reduce the local stress of the second transmission wheel during transmission.

[0050] Further, the second connecting body can be a limiting groove arranged on the inner circumferential surface of the second transmission wheel, and the limiting groove extends along the axial direction of the second transmission wheel, and the first connecting body is a convex rib arranged on the outer circumferential surface of the cylindrical portion, and the limiting groove is used to accommodate the convex rib; or, selectively, the second connecting body can be a convex rib arranged on the inner circumferential surface of the second transmission wheel, and the first connecting body can be a limiting groove arranged on the outer circumferential surface of the cylindrical portion, and the limiting groove extends along the axial direction of the cylindrical portion, and the limiting groove is used to accommodate the convex rib.

[0051] According to the present application, by providing the convex ribs and the limiting grooves, the second transmission wheel can be quickly fixed to the cylindrical portion, which can effectively improve the assembly efficiency of the second transmission wheel. In addition, under the action of the convex ribs and the limiting grooves, the second transmission wheel can also drive the cable drum to rotate during the rotation process.

[0052] Optionally, the connecting structure also includes at least one limiting guide structure, which is arranged on the outer peripheral surface of the cylindrical portion, and the side of the limiting guide structure facing the first end of the cylindrical portion includes a second limiting stop surface, and the second limiting stop surface extends outward from the outer peripheral surface of the cylindrical portion along the radial direction of the cylindrical portion, and the second limiting stop surface is closer to the second end of the cylindrical portion than the first limiting stop surface.

[0053] According to the present application, by setting a limit guide structure and setting a second limit stop surface on the limit guide structure, the second transmission wheel is limited to a set installation position under the joint action of the first limit stop surface and the second limit stop surface, which can effectively prevent the second transmission wheel from axial movement.

[0054] Optionally, the connection structure includes a plurality of the position limiting guide structures, and the plurality of position limiting guide structures are arranged at intervals along the circumferential direction of the cylindrical portion.

[0055] According to the present application, by arranging a plurality of limiting guide structures at intervals in the circumferential direction of the cylindrical portion, a limiting effect can be exerted on a plurality of positions of the second transmission wheel in the circumferential direction, thereby more reliably restricting the second transmission wheel to a set installation position.

[0056] Optionally, the position limiting guide structure has a first outer surface located on a side facing away from the cylindrical portion, and the first outer surface is configured to be inclined relative to the axis of the cylindrical portion, so that the distance between the end of the first outer surface facing the second end of the cylindrical portion and the axis of the cylindrical portion is smaller than the distance between the end of the first outer surface facing the first end of the cylindrical portion and the axis of the cylindrical portion.

[0057] Portions of the cylindrical portion located on both sides of the limiting guide structure along the circumferential direction of the cylindrical portion are configured as functional grooves extending along the axial direction of the cylindrical portion, and the functional grooves penetrate through the side wall of the cylindrical portion.

[0058] According to the present application, by providing multiple limiting guide structures and providing guiding slopes on the limiting guide structures, the installation of the second transmission wheel can be guided at multiple points, which is helpful for the rapid assembly of the second transmission wheel. In addition, by providing functional grooves that penetrate the two sides of the cylindrical portion on both sides of the limiting guide structure, when the second transmission wheel is installed, the limiting guide structure will be displaced toward the center of the cylindrical portion, making it easier for the second transmission wheel to be installed at the set installation position.

[0059] Optionally, the support member includes a first end portion of the support member and a second end portion of the support member which are arranged oppositely along the axial direction of the cylindrical portion, wherein the first end portion of the support member corresponds to the first end of the cylindrical portion, and the second end portion of the support member corresponds to the second end of the cylindrical portion.

[0060] Furthermore, the support member further comprises:

[0061] A first support member disposed at a first end portion of the support member; and

[0062] The second support member is arranged at the second end of the support member and connected to the first support member.

[0063] According to the present application, the support member is composed of two parts, which is convenient for installation.

[0064] Optionally, one end of the first support member used for connecting to the second support member has a first outer diameter, one end of the second support member used for connecting to the first support member has a second outer diameter, one end of the second support member away from the first support member has a third outer diameter, the first outer diameter is greater than the second outer diameter, the third outer diameter is greater than the second outer diameter, and the rotary sub-structure is arranged on the part of the second support member having the second outer diameter.

[0065] According to the present application, by making the second support member have the second outer diameter and the third outer diameter, making the first support member have the first outer diameter, and further making the first outer diameter and the third outer diameter both larger than the second outer diameter, under the action of the first support member and the second support member, the swivel sub-structure can be limited on the second support member, and can prevent the swivel sub-structure from moving in the axial direction of the support member. In addition, by making the support member include the first support member and the second support member, the first support member and the second support member are separately arranged, which facilitates the installation and positioning of the swivel sub-structure.

[0066] Optionally, the cable drum device also includes a first blocking member, which is arranged at the first end of the support member, and the first blocking member includes a first blocking portion extending outward in the radial direction of the cable drum assembly to block the cable drum rack from moving along the axial direction of the cable drum assembly toward a direction away from the second end of the support member.

[0067] According to the present application, by making the cable drum device further include a first blocking member, the first blocking portion provided on the first blocking member can block the cable drum frame to prevent the cable drum frame from moving along the axial direction of the cable drum assembly.

[0068] Optionally, the first blocking member further includes a first connecting portion, the first connecting portion is connected to the first blocking member, and the first connecting portion is used to connect the first end portion of the supporting member.

[0069] Further, the first connecting portion may be configured as a sleeve extending along the axial direction of the cable drum assembly, and the sleeve is sleeved on the outer periphery of the first end portion of the support member.

[0070] According to the present application, the first connecting portion is constructed as a sleeve extending along the axial direction of the cable drum assembly and connected to the support member by sleeve connection, which not only has a simple structure but also is easy to install.

[0071] Optionally, the wire drum assembly further comprises at least one wire drum support, the coiled wire is wound on the wire drum support, and the wire drum supports are connected to the wire drum frame and are arranged at intervals along the circumferential direction of the wire drum frame.

[0072] According to the present application, by providing a wire coil support, the coiled wire can be better fixed on the wire coil rack.

[0073] Optionally, the cable drum device further comprises a second bundling member, wherein the second bundling member is used to gather all the first wiring segments; and / or

[0074] The cable drum device further comprises a third bundling member, and the third bundling member is used for gathering all the second wiring segments.

[0075] Further, the second bundling component and / or the third bundling component may be configured as an insulating sleeve.

[0076] According to the present application, by making the cable drum device include a second bundling member, under the action of the second bundling member, all the first wiring segments can be constrained to eliminate the hidden danger of divergence of the first wiring segments, thereby avoiding the first wiring segments from hooking or getting stuck with nearby structures (such as magnetic conductive brackets, cable drums, etc.). Similarly, by providing a third bundling member, all the second wiring segments can be constrained to eliminate the hidden danger of divergence of the second wiring segments, thereby avoiding the second wiring segments from hooking or getting stuck with nearby structures (such as magnetic conductive brackets, cable drums, etc.).

[0077] Optionally, the rotary auxiliary structure is configured as a rolling bearing or a sliding sleeve; and / or the rotary auxiliary structure is made of non-metallic material.

[0078] According to the present application, the rotary auxiliary structure is made of non-metallic material, thereby avoiding electromagnetic interference.

[0079] Optionally, the wire drum assembly includes a plurality of the coiled wires, and the plurality of the coiled wires are arranged on the wire drum at equal intervals along a circumferential direction of the wire drum.

[0080] According to the present application, the coiled wires are arranged at equal intervals along the circumferential direction of the coiling frame, so that heat sources arranged at equal intervals can be formed, which is convenient for control.

[0081] Optionally, the axial cross-section of the cable drum is a C-shaped structure.

[0082] It is further possible that the coiled wire is arranged outside the C-shaped structure; and / or the coiling rack has a radially symmetrical structure.

[0083] According to the present application, by making the axial cross-section of the wire coil rack a C-shaped structure, the relative area between the wire coil rack and the cooking container can be increased, thereby increasing the area of ​​the heating area of ​​the cooking container by the wire coil assembly.

[0084] Optionally, at least part of the plurality of coil-shaped windings are formed by winding one first enameled wire; or, each of the coil-shaped windings is formed by winding a different first enameled wire.

[0085] According to the present application, by making at least part of the plurality of coiled wires wound by one enameled wire, the winding structure of the coil assembly can be made simpler, and the use of control modules can be reduced, which is conducive to reducing costs. By making each of the coiled wires wound by different enameled wires, not only can the overall control of the coiled wires be achieved, but also the independent control of each coiled wire and the linkage control between the coiled wires can be achieved, so that the cooking appliance can achieve a multi-form heating mode; thereby, the cooking appliance can achieve a better cooking effect.

[0086] A second aspect of the present application provides an electromagnetic heating cooking appliance, comprising:

[0087] According to the cable drum device of the first aspect, the cable assembly comprises a first wiring segment and a second wiring segment, one end of the first wiring segment is used to connect to the first connection point, and the other end of the first wiring segment is used to connect to the circuit board assembly, one end of the second wiring segment is used to connect to the second connection point, and the other end of the second wiring segment is used to connect to the circuit board assembly;

[0088] a cooking container, detachably arranged on one side of the wire reel device from the wire reel device, wherein the cooking container comprises a ferromagnetic material;

[0089] A driving device, used for driving the wire drum frame to rotate around the central axis of the wire drum assembly relative to the support member; and

[0090] A circuit board assembly is connected to the other end of the wiring assembly to supply power to the coiled wire.

[0091] According to the present application, the coil rack can be driven by a driving device to rotate relative to the pot body, so that the electromagnetic heating cooking device can achieve the effect of multi-point heat source rotation heating during use, and then the heating convection form can be changed, so that a complex and changeable convection tumbling form and tumbling effect are formed inside the cooking container, so that the food is heated more evenly. Taking the cooking of rice as an example, the problem of dry or mushy rice caused by uneven heating can be overcome.

[0092] Optionally, the driving device comprises:

[0093] a drive assembly for providing a driving force for rotating the cable drum relative to the support member; and

[0094] The transmission assembly is connected between the driving assembly and the wire coiling frame and is used to transmit the driving force to the wire coiling frame.

[0095] It may further be possible to configure the drive component as a motor; and / or

[0096] The electromagnetic heating cooking appliance further comprises a grounding wire, one end of which is connected to the housing of the driving assembly, and the other end of which is connected to a grounding terminal of the electromagnetic heating cooking appliance.

[0097] According to the present application, the drive component is configured as a motor, which is simple to control and has stable performance. The grounding wire can help the drive component resist electromagnetic interference.

[0098] Optionally, the transmission assembly is made of non-metallic material.

[0099] According to the present application, the transmission component is made of non-metallic material, which can also prevent the transmission component from being affected by electromagnetic interference and affecting its normal operation.

[0100] Optionally, the electromagnetic heating cooking appliance further comprises a magnetic shielding cover, which is used to cover at least a part of the driving device to shield the magnetic field generated by the disc-shaped winding.

[0101] According to the present application, the driving device includes a motor magnetic shield, which can isolate the magnetic field generated by the disc winding to prevent the motor from electromagnetic interference, thereby ensuring that the motor can work normally according to the set requirements.

[0102] Optionally, the electromagnetic heating cooking appliance further comprises a grounding wire, one end of which is connected to the magnetic shield, and the other end of which is connected to a ground terminal of the electromagnetic heating cooking appliance.

[0103] According to the present application, the grounding wire can further enhance the electromagnetic shielding effect of the motor.

[0104] Optionally, the electromagnetic heating cooking appliance further comprises a pot body, a receiving cavity is formed on the pot body, wherein the wire reel device is arranged in the receiving cavity, and the cooking container is removably placed in the receiving cavity.

[0105] When the cooking container is located in the accommodating cavity, the central axis of the cooking container substantially coincides with the central axis of the wire reel assembly.

[0106] According to the present application, the accommodating cavity can make the central axis of the cooking container substantially coincide with the central axis of the wire coil assembly, so that the magnetic field of the coiled wire is distributed along the circumference of the cooking container, which is beneficial for uniform heating of the cooking container.

[0107] Optionally, the circuit board assembly further includes:

[0108] a first power supply line, the first power supply line being electrically connected to the first wiring terminal, the first power supply line comprising M wires, where M is the number of the first enameled wires; and

[0109] A second power supply line, wherein the second power supply line is electrically connected to the second wiring terminal, and the second power supply line includes M wires, wherein M is the number of the first enameled wires.

[0110] According to the present application, the circuit board assembly is connected to the connection assembly through the extended first power supply line and the second power supply line, thereby facilitating the arrangement of the connection assembly and also facilitating the connection with the circuit board assembly.

[0111] Optionally, the electromagnetic heating cooking appliance further comprises:

[0112] A first wiring terminal, disposed on the base, the first wiring terminal being electrically connected to the other end of the first wiring segment and connected to the first power supply line; and

[0113] The second wiring terminal is arranged on the base, and the second wiring terminal is electrically connected to the other end of the second wiring segment and is connected to the second power supply line.

[0114] According to the present application, the first wiring terminal and the second wiring terminal enable the power supply line to be firmly connected to the connection component.

[0115] Optionally, the coiled wire is located on the downward side of the wire coiling rack, and the base is provided with a wiring guide assembly for guiding the wiring of the first wiring segment and / or the second wiring segment, and the wiring guide assembly is located below the wire coiling rack.

[0116] According to the present application, the coiled wire is located on the downward side of the coiling rack, and then located below the coiling rack, so as to avoid the unsightly appearance of the exposed coiled wire. In addition, the first wiring segment and / or the second wiring segment can be constrained and guided by the wiring guide assembly to avoid the coiled wire from getting tangled.

[0117] Optionally, the wiring guide assembly includes:

[0118] A first vertical rib group, wherein the first vertical rib group includes a plurality of first vertical ribs spaced apart from each other, wherein the plurality of first vertical ribs are located between the first wiring terminal and the central axis of the cable tray, and the first wiring segment sequentially passes through a gap between two adjacent first vertical ribs and is wired in an S-shape; and / or

[0119] The second vertical rib group includes a plurality of second vertical ribs spaced apart from each other, the plurality of second vertical ribs are located between the second connecting terminal and the central axis of the cable drum, and the second connecting segment passes through the gap between two adjacent second vertical ribs in sequence and is wired in an S shape.

[0120] According to the present application, by making the first vertical rib group include a plurality of first vertical ribs, and making the first wiring segment pass through the gaps between adjacent first vertical ribs and be wired in an S-shape, the first wiring segment can be constrained and guided to prevent the first wiring segment from getting entangled. Similarly, by making the second vertical rib group include a plurality of second vertical ribs, and making the second wiring segment pass through the gaps between adjacent second vertical ribs and be wired in an S-shape, the second wiring segment can be constrained and guided to prevent the second wiring segment from getting entangled. When the first vertical rib group and the second vertical rib group are provided at the same time, entanglement between the first wiring segment and the second wiring segment can also be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0121] The following drawings of the present application are used as a part of the present application for understanding the present application. The drawings show the implementation modes of the present application and the description thereof, and are used to explain the principle of the present application.

[0122] In the attached figure:

[0123] Figure 1 is a cross-sectional schematic diagram of an electromagnetic heating cooking appliance according to a specific embodiment of the present application;

[0124] Figure 2 for Figure 1 A bottom view schematic diagram of the internal structure of the electromagnetic heating cooking device shown;

[0125] Figure 3 for Figure 1 Another bottom view schematic diagram of the internal structure of the electromagnetic heating cooking utensil shown;

[0126] Figure 4 An exploded view of a cable drum assembly according to some specific embodiments of the present application;

[0127] Figure 5 for Figure 4 A schematic side cross-sectional view of the wire drum assembly shown;

[0128] Figure 6 Schematic diagram of a wire drum support according to some specific embodiments of the present application;

[0129] Figure 7 for Figure 6 A bottom view of the wire drum support shown;

[0130] Figure 8 for Figure 6 A schematic cross-sectional view of a wire drum support is shown, wherein the wire drum support is equipped with a magnetic conductive member;

[0131] Fig. 9 for Figure 5 A partial magnified view of the structure at A in the middle;

[0132] Fig.10 Schematic diagram of a wire drum support according to some other specific embodiments of the present application;

[0133] Fig.11 Schematic cross-sectional views of cable drum assemblies according to other specific embodiments of the present application;

[0134] Fig.12 for Figure 1 A schematic cross-sectional view of some components of an electromagnetic heating cooking utensil shown;

[0135] Fig.13 for Fig.12 A partial magnified view of the structure at B in the middle;

[0136] Fig.14 for Fig.12 A partial magnified view of the structure at C in the middle;

[0137] Fig.15 for Figure 1 A schematic diagram of some components of an electromagnetic heating cooking device shown, wherein a driving device and a wire drum device are shown;

[0138] Fig.16 for Figure 1 An exploded schematic diagram of some components of the electromagnetic heating cooking device shown, wherein a driving device is shown;

[0139] Fig.17 for Fig.15 A schematic diagram of a cable drum is shown;

[0140] Fig.18 for Fig.17 A partial magnified view of the structure at D in the middle;

[0141] Fig.19 for Figure 1 A schematic diagram of some components of an electromagnetic heating cooking appliance shown, wherein a wire reel assembly and a circuit board assembly are shown;

[0142] Fig.20a and Fig.20b for Fig.19 a bottom view of the components shown;

[0143] Fig.21 for Fig.18 A partial magnified view of the structure at E in the middle;

[0144] Fig. 22 for Figure 1 A schematic diagram of some components of the electromagnetic heating cooking appliance mounted on a base is shown;

[0145] Fig.23 for Fig.19 A bottom view of the components shown, wherein the cable drum assembly is compared to Fig.20b The position in is rotated clockwise by an angle;

[0146] Fig.24 for Fig.19 A bottom view of the components shown, wherein the cable drum assembly is compared to Fig.20b The position in is rotated counterclockwise by an angle.

[0147] Description of reference numerals:

[0148] 10: Cover

[0149] 20: Claypot

[0150] 21: Accommodation cavity

[0151] 22: Circuit board assembly

[0152] 23A: First terminal

[0153] 23B: Second terminal

[0154] 24A: First power supply line

[0155] 24B: Second power supply line

[0156] 26: Base

[0157] 26A: First vertical rib

[0158] 26B: Second vertical rib

[0159] 26C: Wiring guide assembly

[0160] 26D: Depression

[0161] 27: Power socket

[0162] 30: Cooking Container

[0163] 31: Cooking Space

[0164] 40: Temperature sensor assembly

[0165] 41: Spring

[0166] 42: Cable

[0167] 50: Drive device

[0168] 51: Drive components / motor

[0169] 52: Magnetic shield

[0170] 53: Ground wire

[0171] 54: Connectors

[0172] 55: Transmission components

[0173] 56: Shaft hole

[0174] 57: First transmission wheel

[0175] 58: Second transmission wheel

[0176] 58F: Second connector / limiting groove

[0177] 59: Motor shaft

[0178] 161: Rotational auxiliary structure

[0179] 162: Support

[0180] 162A: Accommodation space

[0181] 162B: Accommodation space side wall

[0182] 162D: First support

[0183] 162E: Second support

[0184] 162F: Ring slot

[0185] 162G: One end of the first support member for connecting to the second support member

[0186] 162H: One end of the second support member used to connect to the first support member

[0187] 162I: the end of the second support member away from the first support member

[0188] 163: First end of support member

[0189] 164: Second end of the support member

[0190] 165: First blocking member

[0191] 165A: First blocking part

[0192] 165B: First connection part

[0193] 167G: First additional blocking part

[0194] 167H: Second additional blocking portion

[0195] 180: Cable reel

[0196] 180A: Upper side of the cable reel

[0197] 180B: Bottom of the cable drum

[0198] 180C: Cylindrical part

[0199] 180D: First connector / convex rib

[0200] 180E: Limit guide structure

[0201] 180H: Guide bevel

[0202] 180I: First limit stop surface

[0203] 180J: Cable tray through hole

[0204] 180K: Second limit stop surface

[0205] 180L: Functional tank

[0206] 180M: blocking surface

[0207] 180N: Cable drum connection

[0208] 180P: First bundle

[0209] 180Q: First Constraint

[0210] 180R: Second restraint

[0211] 180S: First limit slot

[0212] 180T: Second limit slot

[0213] 180X: First end of cylindrical part

[0214] 180Y: Second end of cylindrical part

[0215] 182: Coil winding

[0216] 182A: Coiled part

[0217] 182B: terminal end

[0218] 182C: First wiring segment

[0219] 182D: Second wiring segment

[0220] 185: Magnetic parts

[0221] 186: Wiring components

[0222] 187: Connection structure

[0223] 189: The first enameled wire

[0224] 189A: First connection point

[0225] 189B: Second connection point

[0226] 200: Induction heating cooking appliances

[0227] 260: Cable drum device

[0228] 270: Cable drum assembly

[0229] 283: Cable drum support

[0230] 283A: Column

[0231] 283B: Partition

[0232] 283C: Magnetic component installation part

[0233] 283D: Cooling channel

[0234] 283G: Limiting parts

[0235] 283H: Guide surface

[0236] 283K: Winding area

[0237] 283L: Bracket connection

[0238] 283M: Horizontal extension

[0239] 283X: Notch

[0240] 283Z: Installation space

[0241] P3: Central axis of cooking container

[0242] P8: Center axis of the coiling rack

[0243] PA: Center axis of the cable drum assembly DETAILED DESCRIPTION

[0244] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0245] 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 those of ordinary skill in the art. 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.

[0246] 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, etc. 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 the words "first", "second", and "third" does not indicate any order, and these words can be interpreted as names.

[0247] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0248] The present application discloses a wire reel support for an electromagnetic heating cooking utensil, a wire reel assembly having the wire reel support, a wire reel device having the wire reel assembly, and an electromagnetic heating cooking utensil having the wire reel assembly or the wire reel device.

[0249] It should be noted that the electromagnetic heating cooking appliance according to the present application can be one of an electric rice cooker, an electric pressure cooker, an electric stew pot, an electric hot pot, an electric frying pan, an electric deep fryer, or an electromagnetic heating cooking appliance similar to the electromagnetic heating cooking appliance. The electromagnetic heating cooking appliance is taken as an example for explanation.

[0250] like Figure 1 As shown, in a specific embodiment, the electromagnetic heating cooking utensil 200 (hereinafter referred to as the cooking utensil 200) according to the present application includes a cover 10 and a pot body 20. A heating device and a cooking container 30 (such as a pot) are arranged in the pot body 20. The cooking container 30 is used to hold food, and the heating device is used to heat the cooking container 30. The cover 10 is used to cover the pot body 20. When the cover 10 covers the pot body 20, a cooking space 31 is formed between the cover 10 and the cooking container 30. The volume of the cooking container 30 is, for example, 1L to 15L. It can be understood that the cooking container 30 includes a ferromagnetic material.

[0251] Specifically, the pot body 20 has a receiving cavity 21, and the cooking container 30 is removably disposed in the receiving cavity 21. The heating device is composed of a wire drum device 260 and a circuit board assembly 22. The pot body 20 has a base 26, which at least forms the bottom wall of the receiving cavity 21. The wire drum device 260 and the circuit board assembly 22 are both disposed on the base 26. Figure 2 and Figure 3 As shown, the wire reel device 260 includes a coiled wire 182, which is used to form a resonant inductor of an electromagnetic heating resonant circuit, so as to generate an alternating magnetic field required for electromagnetic heating after power is turned on. The circuit board assembly 22 is used to power the coiled wire 182. The circuit board assembly 22 is provided with, for example, a resonant capacitor used in conjunction with the coiled wire 182, a switch module (for example, a power switch tube IGBT), a control module, a power module, etc. The wire reel device 260 is arranged at the bottom of the accommodating cavity 21, and the cooking container 30 is detachably arranged in the magnetically inductive area of ​​the wire reel device 260 (that is, the electromagnetically heated area), for example, at least above. The cooking container 30 has a central axis P3 of the cooking container. The cooking container 30 is generally in the shape of a rotating body with the central axis P3 of the cooking container as the axis.

[0252] The base 26 may also simultaneously provide a side wall of the accommodating cavity 21 , so that the base 26 is used to enclose the accommodating cavity 21 .

[0253] like Figures 1 to 3As shown, the wire reel device 260 includes a wire reel assembly 270, the wire reel assembly 270 includes at least one coiled wire 182, the coiled wire 182 is used to generate an alternating magnetic field after being energized, the wire reel assembly 270 has a wire reel assembly central axis PA, and the wire reel assembly 270 is configured so that the magnetic field strength of the alternating magnetic field is non-uniformly distributed along the circumferential direction of the wire reel assembly 270. The electromagnetic heating cooking appliance 200 is configured so that the cooking container 30 and the wire reel assembly 270 are detachably arranged at least above the wire reel assembly 270, when the cooking container 30 is located at least above the wire reel assembly 270, the cooking container central axis P3 and the wire reel assembly central axis PA are substantially coincident or substantially parallel to each other, and at least a portion of the wire reel assembly 270 is rotatable relative to the cooking container 30 around the wire reel assembly central axis PA. As a convertible embodiment, in specific implementation, the cooking container 30 can also be selectively made rotatable relative to at least a portion of the wire reel assembly 270 around the cooking container central axis P3. Thus, one of the alternating magnetic fields generated by the cooking container 30 and the wire reel assembly 270 is rotatable relative to the other around the wire reel assembly central axis PA, so that the heated portion of the cooking container 30 rotates on the cooking container 30 along the circumferential direction of the cooking container 30.

[0254] In this application, two central axes substantially coincide means that the distance between the two central axes is ≤3 mm, and the angle between the two central axes is ≤5°. That is, the two central axes are substantially parallel and close. Two central axes are substantially parallel to each other means that the angle between the two central axes is ≤5°.

[0255] It can be understood that the central axis P3 of the cooking container and the central axis PA of the wire reel assembly both extend in the height direction of the cooking appliance 200 .

[0256] In an embodiment not shown in the present application, the wire reel device 260 is used to be arranged on the side of the cooking container 30 (for example, the wire reel device 260 is configured to include a sleeve that can be sleeved on the outer periphery of the cooking container 30). Alternatively, the wire reel device 260 can also be arranged on the cover 10 (the cover 10 includes a receiving cavity for accommodating the wire reel device 260), so that the cooking container 30 and the wire reel device 260 are detachably arranged at least below the magnetically induced area of ​​the wire reel device 260. That is, in the present application, the cooking container 30 and the wire reel device 260 are detachably arranged on one side of the magnetically induced area of ​​the wire reel device 260 (that is, the coiled wire 182 and / or the magnetic field generated by it are located at least on the upper side, at least on the lower side or at least on the outer side of the cooking container 30), and the central axis P3 of the cooking container and the central axis PA of the wire reel assembly are substantially coincident or substantially parallel to each other.

[0257] The driving device 50 disposed on the base 26 is used to drive one of the alternating magnetic fields generated by the cooking container 30 and the wire reel assembly 270 to rotate relative to the other around the central axis PA of the wire reel assembly. As some preferred embodiments of the present application, Figure 2 and Figure 3 As shown, the wire drum assembly 270 includes a plurality of coiled wires 182, and the coiled wires 182 are arranged at intervals along the circumferential direction of the wire drum assembly 270, so that all the coiled wires 182 do not fill the annular area with the central axis PA of the wire drum assembly as the axis. Alternatively, the wire drum assembly 270 includes only one coiled wire 182, and the winding center of the coiled wire 182 deviates from the central axis PA of the wire drum assembly. The coiled wire 182 is not concentric with the wire drum assembly 270. Therefore, along the circumferential direction of the wire drum assembly 270, the magnetic field line density is large and the magnetic field strength is strong in the area where the coiled wires 182 are distributed, and the magnetic field line density is small and the magnetic field strength is weak in the area where the coiled wires 182 are not distributed. That is, the non-uniform distribution of its magnetic field strength is achieved by making the coiled wires 182 non-uniformly distributed along the circumference of the wire drum assembly 270.

[0258] The gap between two adjacent disc windings 182 cannot be too small, otherwise electromagnetic self-interference will occur, resulting in undesirable phenomena such as large reverse pressure, low inductance, small heating power, large storage current, and messy heating waveform.

[0259] It should be noted that in the present application, the number of the coiled wires 182 included in the wire reel assembly 270 is not specifically limited. In a specific implementation, the number of the coiled wires 182 included in the wire reel assembly 270 can be selectively one, two, three, four, five, six, seven, eight, nine or more than ten. Figure 2 and Figure 3 As shown, it is preferred that the number of the disc-shaped windings 182 is three, and the three disc-shaped windings 182 are spaced apart along the circumferential direction of the wire drum assembly 270 . It is further preferred that the three disc-shaped windings 182 are equally spaced apart along the circumferential direction of the wire drum assembly 270 .

[0260] It should also be pointed out that in the present application, "at least part of the wire reel assembly is rotatable relative to the cooking container around the central axis of the wire reel assembly" includes that at least part of the wire reel assembly can rotate a full circle around the central axis PA of the wire reel assembly, and also includes that at least part of the wire reel assembly can rotate less than 360° around the central axis PA of the wire reel assembly.

[0261] As some preferred embodiments of the present application, the wire reel assembly 270 is further configured 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 reel assembly 270, wherein the magnetic field strength of the strong magnetic region is greater than the magnetic field strength of the weak magnetic region. In the illustrated embodiment, the portion of the wire reel assembly 270 corresponding to the arrangement of the disc winding 182 is a strong magnetic region, and the portion corresponding to the gap between the two disc windings 182 is a weak magnetic region. The N strong magnetic regions are evenly spaced along the circumferential direction of the wire reel assembly 270, and the N weak magnetic regions are evenly spaced along the circumferential direction of the wire reel assembly 270. Among them, the electromagnetic heating cooking utensil 200 is configured so that when the cooking container 30 is located at least above the wire reel assembly 270, at least a portion of the wire reel assembly 270 and one of the cooking container 30 can rotate relative to the other by ±180 / N degrees.

[0262] It should be noted that N is any integer greater than or equal to 1; in a specific implementation, N can be optionally any value of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. It should be further pointed out that N is not limited to the values ​​listed above, and it can also be any value greater than 10. In a specific implementation, N can also be 11, 12, 13, etc.

[0263] As some preferred implementations of the present application, specifically as follows Figure 2 and Figure 3 As shown, the wire drum assembly 270 is constructed so 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 270 .

[0264] According to the present application, by making the wire reel assembly 270 include at least one coiled wire 182, and by making the wire reel assembly 270 rotatable relative to the cooking container 30, the effect of rotating heating of the electromagnetic heating cooking utensil 200 heat source can be achieved, and at the same time, the complex and changeable convection tumbling form and tumbling effect inside the cooking container 30 can be achieved, so that the food is heated more evenly, so as to achieve a better cooking effect, thereby improving the user experience. In particular, when the wire reel assembly 270 includes multiple coiled wires 182, the effect of rotating heating of multiple heat sources of the electromagnetic heating cooking utensil 200 heat source can be achieved, so that the food is heated more evenly and a better cooking effect is achieved.

[0265] As some preferred embodiments of the present application, the electromagnetic heating cooking appliance 200 is configured such that when the cooking container 30 is placed at least above the wire reel assembly 270, 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.

[0266] According to the present application, the distance between the disc winding 182 and the cooking container 30 is set between 3 mm and 30 mm to solve the problems of the magnetic field generated by the disc winding 182 covering a small area of ​​the cooking container 30 and insufficient firepower due to the distance being too large; at the same time, it can also solve the problems of high heat generation and increased energy consumption of the disc winding 182 due to the distance between the disc winding 182 and the cooking container 30 being too small.

[0267] like Figure 2 , Figure 4 and Figure 5 As shown in some preferred embodiments of the present application, the cable drum assembly 270 includes a cable drum frame 180, at least one cable drum support 283, at least one coiled wire 182, and at least one magnetic conductive member 185. The cable drum frame 180 is generally configured in a disc shape and has a cable drum frame central axis P8, which is also the cable drum assembly central axis PA. The cable drum supports 283 are arranged at intervals along the circumferential direction of the cable drum frame 180. The coiled wire 182 is wound around the cable drum support 283, so that the coiled wire 182 is arranged at intervals along the circumferential direction of the cable drum frame 180. In a specific implementation, a plurality of cable drum supports 283 can be further arranged at equal intervals on the cable drum frame 180 along the circumferential direction of the cable drum frame 180.

[0268] The coiled wire 182 is coiled around a winding center that is offset from the bobbin center axis P8 , so that the coiled wire 182 is not concentric with the bobbin 180 , and the coiled wire 182 is not concentric with the bobbin assembly 270 .

[0269] As some preferred embodiments of the present application, Figures 6 to 11 As shown, the wire coil support 283 includes a support base shaft 283A and at least two partitions 283B. The support base shaft 283A is used to wind the enameled wire around the support base shaft 283A to form a coiled wire 182. At least two partitions 283B are arranged at intervals along the axial direction of the support base shaft 283A, and the partitions 283B are connected to the support base shaft 283A. The partitions 283B extend outward from at least part of the outer periphery of the support base shaft 283A along the radial direction of the support base shaft 283A. The space between two adjacent partitions 283B is a winding area 283K for winding the enameled wire, and the coiled wire 182 is wound in the winding area 283K. The axis of the support base shaft 283A is also the winding center of the coiled wire 182.

[0270] It should be noted that the number of partitions 283B included in the wire drum bracket 283 is not specifically limited. In specific implementation, the number of partitions 283B included in the wire drum bracket 283 can be selectively two, three, four or five; it should be further noted that the number of partitions 283B included in the wire drum bracket 283 is not limited to the number listed above. Figure 6and Figure 8 As shown, the wire drum support 283 includes three partitions 283B spaced apart in the axial direction of the support base shaft 283A; Fig.10 As shown, the wire drum support 283 includes two partitions 283B spaced apart from each other in the axial direction of the support base shaft 283A.

[0271] It should also be pointed out that the distance between adjacent partitions 283B included in the coil support 283 is not specifically limited, and can be selectively set according to factors such as the winding amount of the coil winding 182, the winding method, and the size of the wound enameled wire. In specific implementation, when a large number of coil windings 182 need to be wound in the winding area 283K, the distance between the partitions 283B can be appropriately increased. In specific implementation, multiple coil windings 182 can be selectively provided on two partitions 283B, and the multiple coil windings 182 are stacked and arranged along the axial direction of the support base shaft 283A. Specifically, Fig.11 As shown, between two adjacent partitions 283B, two disc-shaped windings 182 are stacked and arranged along the axial direction of the bracket base shaft 283A.

[0272] As some preferred embodiments of the present application, at least two partitions 283B are further selectively arranged at equal intervals along the axial direction of the bracket base shaft 283A. As a convertible embodiment, the partitions 283B included in the wire drum bracket 283 can also be selectively arranged at least partially at unequal intervals along the axial direction of the bracket base shaft 283A.

[0273] According to the present application, the wire coil support 283 includes at least two partitions 283B, and a winding area 283K is formed between the partitions 283B to facilitate the winding of the coiled wire 182. In addition, the present application can form multiple winding areas 283K on the wire coil support 283 by forming the partitions 283B or appropriately increase the distance between the partitions 283B, so that the wire coil support 283 can wind more coiled wires in a limited space, thereby increasing the inductance of the coiled wire 182, and then the heating power of the electromagnetic heating cooking device 200 can be increased.

[0274] As some preferred embodiments of the present application, the wire drum bracket 283 also includes at least one magnetic component mounting portion 283C, and the magnetic component mounting portion 283C is used to install the magnetic component 185. The magnetic component mounting portion 283C is arranged on the side of the first partition 283B facing away from the winding area 283K.

[0275] According to the present application, by providing a magnetic member installation portion 283C on the wire coil support 283, the wire coil support 283 can not only have the function of winding the coiled wire, but also can install and fix the magnetic member 185, so as to realize the modular assembly of the wire coil assembly 270, thereby improving the assembly efficiency of the electromagnetic heating cooking appliance 200. In the assembled state, the magnetic member 185 is opposite to at least a part of the coiled wire 182, so that the magnetic member 185 can better focus the magnetic lines of force generated by the coiled wire 182.

[0276] As a preferred embodiment under some of the above-mentioned embodiments, the wire drum bracket 283 further includes a plurality of magnetic component mounting portions 283C, and the plurality of magnetic component mounting portions 283C are arranged at intervals along the circumference of the first partition 283B. Preferably, the plurality of magnetic component mounting portions 283C are arranged at equal intervals along the circumference of the first partition 283B. It should be pointed out that there is no specific restriction on the number of magnetic component mounting portions 283C included in the wire drum bracket 283, and it can be selectively set according to actual needs. In specific implementation, the number of magnetic component mounting portions 283C included in the wire drum bracket 283 can be selectively set to one, two, three, four, five, six, seven or more than eight. Specifically, Figure 7 As shown, the wire drum bracket 283 includes four magnetic conductive member mounting portions 283C, and the four magnetic conductive member mounting portions 283C are arranged at equal intervals along the circumferential direction of the wire drum bracket 283.

[0277] According to the present application, by arranging multiple magnetic conductive member installation parts 283C at equal intervals along the circumference of the partition 283B, under the action of the magnetic conductive members 185 arranged at equal intervals, the magnetic field intensity of the wire drum assembly 270 at the coiled wire 182 can be made greater, so as to further improve the non-uniformity of the magnetic field generated by the wire drum assembly 270. Furthermore, by arranging multiple magnetic conductive members 185 at equal intervals along the circumference of the partition 283B, a better magnetic isolation effect can be achieved on one side of the coiled wire 182.

[0278] As some preferred embodiments of the present application, a heat dissipation channel 283D penetrating at least two partitions 283B is further provided between adjacent magnetic conductive component mounting portions 283C. The heat dissipation channel 283D provided on the partition 283B can better dissipate heat from the disc winding 182. As a preferred embodiment under some of the above embodiments, at least part of the heat dissipation channel 283D is further selectively expanded from the inside to the outside along the radial direction of the partition 283B. Specifically, Figure 6 and Figure 7 As shown, three heat dissipation channels 283D are provided on the wire coil support 283 along the axial direction of the support 238 and penetrate all the partitions 283B. The three heat dissipation channels 283D gradually expand from the inside to the outside along the radial direction of the partition 283B.

[0279] The present application can effectively increase the heat dissipation area of ​​the disc winding 182 by gradually expanding the heat dissipation channel 283D from the inside to the outside along the radial direction of the partition 283B, thereby achieving a better heat dissipation effect; in addition, it can also achieve the effect of saving materials and reducing costs.

[0280] As some preferred embodiments of the present application, the magnetic conductive component mounting portion 283C further includes at least one pair of relatively arranged limit members 283G, the limit members 283G are connected to the surface of the first partition 283B on the side facing away from the winding area 283K, and protrude from the surface of the partition 283B on the side facing away from the winding area 283K, and an installation space 283Z for the magnetic conductive component 185 is formed between the pair of limit members 283G.

[0281] It should be noted that the number of the limiting members 283G included in the magnetic conductive member installation portion 283C in the present application is not specifically limited, and can be selectively set according to the shape of the magnetic conductive member 185. The present application can limit the magnetic conductive member 185 by making the magnetic conductive member installation portion 283C include at least one pair of relatively set limiting members 283G, so as to facilitate the positioning and installation of the magnetic conductive member 185.

[0282] In specific implementation, Figure 7 As shown, the magnetic conductive member mounting portion 283C can further include two pairs of relatively arranged limit members 283G, wherein the first pair of limit members 283G are relatively arranged along the radial direction of the first partition 283B, and the second pair of limit members 283G are relatively arranged along a direction perpendicular to the radial direction of the first partition 283B, that is, the arrangement directions of the two pairs of limit members 283G are perpendicular.

[0283] According to the present application, by making the magnetic conductive component mounting portion 283C include two pairs of relatively arranged limiting components 283G, the four directions of the magnetic conductive component 185 can be positioned and restricted, so that the magnetic conductive component 185 can be better constrained in the magnetic conductive component mounting portion 283C.

[0284] It is also possible to further make the distance between the two limit members 283G of the first pair of limit members 283G greater than the distance between the two limit members 283G of the second pair of limit members 283G. Figure 4 As shown, the magnetic conductive component 185 is correspondingly arranged at the magnetic conductive component mounting portion 283C. When the distance between a pair of limiting components 283G relatively arranged along the radial direction of the first partition 283B is large, the magnetic conductive component 185 is a long strip extending along the radial direction of the partition 283B. The extended square shape conforms to the direction of the magnetic force lines and can better focus the magnetic force lines.

[0285] As a preferred embodiment of some of the above embodiments, at least one pair of oppositely disposed stoppers 283G is provided with a lateral extension portion 283M, which is connected to an end of the stopper 283G away from the first partition 283B and extends toward the other of the pair of stoppers 283G. Figure 7 As shown, a pair of stoppers 283G along the radial direction perpendicular to the first partition 283B are provided with a lateral extension 283M. The present application provides a lateral extension 283M on the stopper 283G, and allows the lateral extension 283M to extend toward the other opposite side. Under the action of the lateral extension 283M, no other fixing process is required, and the magnetic conductive member 185 installed on the magnetic conductive member installation part 283C can be better restrained, so that the magnetic conductive member 185 can be firmly maintained on the magnetic conductive member installation part 283C.

[0286] As a preferred embodiment under some of the aforementioned embodiments, Figure 6 As shown, a guide surface 283H may be further provided on the side of the lateral extension portion 283M facing away from the first partition plate 283B, and the guide surface 283H extends obliquely from the side of the lateral extension portion 283M facing away from the first partition plate 283B toward the installation space 283Z.

[0287] According to the present application, the guide surface 283H provided on the transverse extension portion 283M can provide a guide for the installation of the magnetic conductive member 185, thereby enabling the magnetic conductive member 185 to be simply and efficiently installed on the magnetic conductive member installation portion 283C.

[0288] As some preferred embodiments of the present application, the section of the support base shaft 283A between the two partitions 283B can be further made into a cylindrical structure, so as to facilitate the winding of the disc winding 182. In a specific implementation, the outer diameter of the cylindrical structure can be further selectively set to any value between 4mm and 20mm. In a specific implementation, the outer diameter of the cylindrical structure is preferably set to 8mm-15mm. By setting the outer diameter of the cylindrical structure of the support base shaft 283A to any value between 4mm and 20mm, the present application can avoid the waste of space caused by taking a value that is too large, and can also avoid the problem of electromagnetic self-interference at the center of the disc winding caused by taking a value that is too small.

[0289] As a preferred embodiment under the aforementioned implementation mode, Figure 6 and Figure 7As shown, the outer periphery of the partition 283B can be further selectively made into an arc shape with the axis of the cylindrical structure of the bracket base shaft 283A as the axis, for example, a major arc. The body of the partition 283B is not constructed as a full circle, but has a notch 283X, which extends from the inside to the outside along the radial direction of the partition 283B to the outer edge of the partition 283B, and passes through the entire partition 283B along the axial direction of the bracket 283, so as to facilitate the winding of the disc winding 182.

[0290] In a specific implementation, the section of the support base shaft 283A between the two partitions 283B can be selectively made into a polygonal column structure, which can be a polygon with a cross section of a triangle, rectangle, rhombus, hexagon or the like; or, the section of the support base shaft 283A between the two partitions 283B can be an elliptical cylinder, that is, its cross section is an ellipse. The disc-shaped winding 182 can be wound according to the shape of the cross section of the section of the support base shaft 283A between the two partitions 283B.

[0291] As some preferred embodiments of the present application, a plurality of coil windings 182 may be selectively provided between two adjacent partitions 283B, and the plurality of coil windings 182 may be stacked and arranged along the axial direction of the bracket base shaft 283A. It should be noted that there is no specific restriction on the number of coil windings 182 provided between two adjacent partitions 283B. The number of coil windings 182 stacked and arranged along the circumferential direction of the bracket base shaft 283A on the coil bracket 283 may be two, three, four, five, six or more than seven according to actual needs. Specifically, Fig.10 As shown, two disc-shaped windings 182 stacked in the axial direction of the bracket base shaft 283A are provided between two adjacent partitions 283B.

[0292] The present application improves the local heating capacity of the wire drum assembly 270 by arranging a plurality of coil windings 182 between two adjacent partitions 283B and arranging the coil windings 182 in a stacked manner along the axial direction of the bracket base shaft 283A; at the same time, making the distance between two adjacent partitions 283B farther also helps to reduce the injection molding process requirements of the wire drum bracket 283.

[0293] It should be noted that in the present application, the number of the wire drum brackets 283 included in the wire drum assembly 270 is not specifically limited, and it can be selectively set according to actual needs. In specific implementation, the number of the wire drum brackets 283 included in the wire drum assembly 270 can be selectively one, two, three, four, five, six, seven, eight, nine or more than ten. In specific implementation, Figures 2 to 4As shown, it is preferred that the number of the wire coil brackets 283 is set to three, and the three coil windings 182 are arranged at intervals along the circumferential direction of the wire coil assembly 270, and the coil windings 182 are wound around the winding area 283K of each wire coil bracket 283. The present application arranges multiple wire coil brackets 283 on the wire coil assembly 270, and arranges the coil windings 182 on the multiple wire coil brackets 283, so that the electromagnetic heating cooking utensil 200 including the same can achieve the function of multi-point heating. By arranging multiple wire coil brackets 283 at equal intervals along the circumference of the wire coil rack 180, multiple positions of the cooking container 30 can be evenly heated under the action of the multiple coil windings 182.

[0294] As some preferred embodiments of the present application, the wire coil support 283 further includes a support connection portion 283L for connecting the wire coil support 283 to the electromagnetic heating cooking appliance 200 (specifically, the wire coil rack 180 of the cooking appliance 200). Figure 6 , Figure 8 , Fig.10 and Fig.11 As shown, the bracket connecting portion 283L is arranged at the end of the bracket base shaft 283A away from the first partition 283B, that is, the bracket connecting portion 283L is arranged on the side of the last partition 283B facing away from the winding area 283K, so that the wire reel frame 180 and the magnetic conductive member 185 are located on different sides of the wire reel bracket 283, which facilitates the assembly of the wire reel assembly 270.

[0295] like Figure 5 As shown, the wire coiling rack 180 is provided with the same number of wire coiling rack connection parts 180N as the wire coil bracket 283, which are used to connect with the bracket connection part 283L, so that the wire coil bracket 283 is connected to the wire coiling rack 180. In a specific implementation, the bracket connection part 283L can be optionally configured as one of a hook, a slot and a threaded structure. That is, the bracket connection part 283L is selectively connected to the wire coiling rack connection part 180N by snap connection, thread connection or adhesive connection.

[0296] According to the present application, by configuring the bracket connection portion 283L to be one of a hook, a slot, and a threaded structure, the wire reel bracket 283 can be conveniently and quickly connected to a set position of the electromagnetic heating cooking appliance 200 .

[0297] As a preferred embodiment of some of the above embodiments, one of the bracket connection part 283L and the wire coil rack connection part 180N can be further selectively configured as a hook, and the other of the bracket connection part 283L and the wire coil rack connection part 180N can be configured as a slot for engaging with the hook, and the wire coil bracket 283 is engaged with the slot via the hook, so as to connect the wire coil bracket 283 to the wire coil rack 180. Fig. 9As shown, in the illustrated embodiment, the bracket connection portion 283L is configured as a hook, and the cable drum connection portion 180N is configured as a slot. It should be noted that in a specific implementation, the bracket connection portion 283L can be selectively connected to the cable drum 180 by other means (such as welding, bonding, etc.).

[0298] As a convertible embodiment, the wire reel rack connection portion 180N can be selectively constructed as a snap-in hook, and the bracket connection portion 283L can be constructed as a slot, and the wire reel bracket 283 can be engaged with the slot via the snap-in hook to connect the wire reel bracket 283 to the wire reel rack 180 (not shown in the figure).

[0299] According to the present application, by making one of the bracket connecting part 283L and the wire coil rack connecting part 180N be constructed as a snap-on hook and the other of them be constructed as a snap-on groove, the wire coil bracket 283 and the wire coil rack 180 are connected by snapping together, so that the wire coil bracket 283 and the wire coil rack 180 can be connected simply and quickly, thereby effectively improving the installation efficiency of the wire coil bracket 283 and the wire coil rack 180.

[0300] As some preferred embodiments of the present application, Figure 5 As shown, the axial cross section of the wire coiling rack 180 is further selectively made into a C-shaped structure. As a preference, the wire coiling rack 180 is further made to have a radially symmetrical structure. In a specific implementation, the wire coil support 283 and the coiled wire 182 can be further arranged on the outer side 180B of the C-shaped structure (i.e., the lower side of the wire coiling rack when in use). The cooking container 30 is located on the inner side 180A of the C-shaped structure (i.e., the upper side of the wire coiling rack when in use). The present application increases the relative area between the wire coiling rack 180 and the cooking container 30 by making the axial cross section of the wire coiling rack 180 into a C-shaped structure, thereby increasing the area of ​​the heating area of ​​the cooking container 30 by the wire coil assembly 270.

[0301] Preferably, if Figure 5 and Figure 6 As shown, the partition 283B also has a certain curvature to adapt to the curvature of the wire coiling rack 180, so that the partition 283B and the wire coiling rack 180 are generally parallel to each other in the assembled state, so that the coiled wire 182 maintains a uniform distance from the wire coiling rack 180, which facilitates the control of heating the cooking container 30.

[0302] like Fig.12 and Fig.13As shown, the wire drum device 260 includes a support member 162 and a wire drum assembly 270. The support member 162 is disposed on the base 26, and the wire drum assembly 270 is disposed on the support member 162. Specifically, the wire drum frame 180 of the wire drum assembly 270 is connected to the support member 162 and is rotatable relative to the support member 162 around the wire drum assembly central axis PA. In the present application, the wire drum frame 180 is also referred to as a turntable 180.

[0303] It should be noted that the present application does not impose any specific restrictions on the structure of the support member 162, which can be any structural form that meets the installation requirements of the cable tray assembly 270. Fig.12 As shown, the support member 162 can be selectively configured as a protruding structure extending upward from the middle portion of the base 26 .

[0304] The cable drum device 260 may further include a temperature sensor assembly 40. The temperature sensor assembly 40 is disposed on the support 162 and is used to contact the cooking container 30 to sense the bottom temperature of the cooking container 30. For example, the support 162 includes a receiving space 162A, and the temperature sensor assembly 40 is disposed in the receiving space 162A and is exposed from the surface of the support 162 to contact the cooking container 30. The support 162 includes a support first end 163 and a support second end 164 that are oppositely disposed along the axial direction of the cable drum assembly 270, the support first end 163 being on the top and the support second end 164 being on the bottom. The temperature sensor assembly 40 is exposed from the support first end 163, and the support second end 164 is provided with a wire outlet (not shown) for leading out the cable 42 of the temperature sensor assembly 40.

[0305] The wire coiling rack 180 is, for example, sleeved on the outer circumference of the support member 162. The coiled wire 182 is disposed on one side of the wire coiling rack 180 facing the second end portion 164 of the support member. The wire coil support 283 is connected to one side of the wire coiling rack 180 facing the second end portion 164 of the support member.

[0306] In a specific implementation, a cylindrical portion 180C is provided in the central part of the wire coiling frame 180. The cylindrical portion 180C has a cylindrical portion first end 180X and a cylindrical portion second end 180Y which are arranged oppositely along the axial direction of the wire coiling frame 180. The first end 180X of the cylindrical portion 180C is connected to the central part of the wire coiling frame 180, and the second end 180Y of the cylindrical portion 180C extends in a direction away from the wire coiling frame 180. The central axis of the cylindrical portion 180C coincides with the central axis P8 of the wire coiling frame. A wire coil through hole 180J extending in the axial direction of the wire coiling frame 180 is provided inside the cylindrical portion 180C. At least a part of the support member 162 is arranged in the wire coil through hole 180J. The first end 163 of the support member and the second end 164 of the support member can also be understood as being arranged oppositely along the axial direction of the cylindrical portion 180C. The support member first end 163 corresponds to the first end 180X of the cylindrical portion, and the support member second end 164 corresponds to the second end 180Y of the cylindrical portion.

[0307] The support member 162 is adapted to the wire drum through hole 180J, so that the wire drum frame 180 can rotate around the central axis PA of the wire drum assembly relative to the support member 162. For example, the side wall of the wire drum through hole 180J is connected to the side wall of the support member 162 through a swivel substructure 161, wherein the axis of the swivel substructure 161 coincides with the central axis PA of the wire drum assembly. The swivel substructure 161 can be selectively configured as a rolling bearing, so that the inner ring of the rolling bearing 161 is tightly matched with the outer peripheral surface of the support member 162, and the outer ring of the rolling bearing 161 is tightly matched with the inner peripheral surface of the wire drum through hole 180J. As a convertible embodiment, the swivel substructure 161 can also be selectively configured as a sliding sleeve. In order to prevent electromagnetic interference, the swivel substructure 161 is further selectively made of non-metallic material.

[0308] In a specific implementation, the cylindrical portion 180C and the cable reel 180 may be selectively formed into an integrated structure, or the first end of the cylindrical portion 180C may be selectively connected to the cable reel 180 by bonding, welding, threaded connection, or the like.

[0309] Further, the outer periphery of the support member 162 is selectively formed with an annular groove 162F for accommodating the rotary auxiliary structure 161. In specific implementation, the rolling bearing 161 is sleeved in the annular groove 162F. As some preferred embodiments of the present application, Fig.13 and Fig.14As shown, the support member 162 includes a first support member 162D and a second support member 162E. The first support member 162D is arranged at the first end 163 of the support member. The second support member 162E is arranged at the second end 164 of the support member and is connected (e.g., clamped, threaded, etc.) to the first support member 162D. One end 162G of the first support member 162D for connecting to the second support member 162E has a first outer diameter, one end 162H of the second support member 162E for connecting to the first support member 162D has a second outer diameter, and one end 162I 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 the portion 162H corresponding to the second outer diameter forms a clamping groove 162F. The rotary auxiliary structure 161 is arranged at the portion 162H of the second support member 162E having the second outer diameter.

[0310] The first support member 162D and the second support member 162E are both constructed as hollow structures to form a receiving space 162A. The outlet of the cable 42 is arranged on the second support member 162E. Along the axial direction of the cable drum assembly 270, the rotary substructure 161 is closer to the first end 163 of the support member than the outlet, so that the position of the outlet avoids the cable drum assembly 270, and the cable 42 has no effect on the rotation of the cable drum assembly 270.

[0311] The inner peripheral surface of the wire coil through hole 180J has a blocking surface 180M extending toward the cylindrical portion 180C in the radial direction of the wire coil through hole 180J, and the blocking surface 180M is used to contact the side of the swivel substructure 161 facing the first end portion 163 of the support member. Thus, the swivel substructure 161 can support the cylindrical portion 180C in the height direction of the cooking utensil 200, and further support the wire coil rack 180 and the wire coil assembly 270.

[0312] For example Fig.13 and Fig.14 As shown, the cable drum device 260 further includes a first blocking member 165, which is disposed at the first end of the support member, and includes a first blocking portion 165A extending outwardly in the radial direction of the cable drum assembly 270 to block the cable drum frame 180 from moving in the axial direction of the cable drum assembly 270 in a direction away from the second end 164 of the support member. The first blocking member 165 further includes a first connecting portion 165B, which is connected to the first blocking portion 165A, and the first connecting portion 165B is used to connect the first end 163 of the support member. The first connecting portion 165B is configured as a sleeve extending in the axial direction of the cable drum assembly 270, the sleeve is sleeved on the outer periphery of the first end 163 of the support member, and the sleeve is sleeved on the outer periphery of the first support member 162D.

[0313] A through hole is provided at an end of the first blocking member 165 corresponding to one end of the first connecting portion 165B connected to the first blocking portion 165A (the upper end of the first blocking member 165 in the figure) for exposing the temperature sensor assembly 40 .

[0314] When the cooking container 30 is placed in the pot body 20, in order to protect the temperature sensor assembly 40, the temperature sensor assembly 40 includes a spring 41 extending in the axial direction of the wire disc assembly 270. Fig.14 As shown, in order to protect the temperature sensor assembly 40 from being separated from the accommodation space 162A, the support member 162 is provided with a first additional blocking portion 167G and a second additional blocking portion 167H spaced apart along the axial direction of the wire drum assembly 270, so as to limit at least part of the temperature sensor assembly 40 between the first additional blocking portion 167G and the second additional blocking portion 167H. For example, the upper end surface of the first support member 162D forms the first additional blocking portion 167G, and the convex rib inside the second support member 162E forms the second additional blocking portion 167H, and the spring 41 of the temperature sensor assembly 40 is limited between the first additional blocking portion 167G and the second additional blocking portion 167H along the axial direction of the wire drum assembly 570.

[0315] In the illustrated embodiment, the driving device 50 is used to drive the wire coiling rack 180 to rotate around the central axis PA of the wire coil assembly relative to the pot body 20 (i.e., the support member 162, i.e., the cooking container 30). It should be noted that the driving device 50 in the present application is not specifically limited, and it can be any device that can drive the wire coil assembly 270 (specifically, the wire coiling rack 180) to rotate.

[0316] Specifically, Fig.15 and Fig.16 As shown, the driving device 50 may selectively include a driving assembly 51 and a transmission assembly 55. The driving assembly 51 is used to provide a driving force for rotating the wire coiling rack 180 relative to the support member 162, and 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. That is, the driving assembly 51 is transmission-connected to the wire coiling rack 270 via the transmission assembly 55, and under the drive of the driving assembly 51, the wire coiling rack 270 can rotate relative to the cooking container 30 around the central axis PA of the wire coiling rack.

[0317] The drive assembly 51 is configured as a motor, for example. The motor 51 is, for example, a stepper motor, so as to provide power for the forward and reverse rotation of the wire drum assembly 270. The motor 51 is electrically connected to the control module of the circuit board assembly 22 to work under the control of the control module. The control module can realize the forward and reverse rotation and intermittent rotation of the turntable 180 by controlling the motor 51, and the speed and stroke are adjustable. The speed range of the turntable 180 is, for example, 1r / min to 350r / min, preferably 4r / min to 6r / min.

[0318] The transmission assembly 55 includes, for example, a first transmission wheel 57 and a second transmission wheel 58, wherein the first transmission wheel 57 and the second transmission wheel 58 are both configured as gears for meshing transmission. The first transmission wheel 57 is further connected to the motor shaft 59 (motor output shaft) of the motor 51, and the second transmission wheel 58 is connected to the cylindrical portion 180C. When the motor 51 is powered, the motor 51 can drive the cylindrical portion 180C to rotate through the first transmission wheel 57 and the second transmission wheel 58, and finally the cable drum assembly 270 rotates.

[0319] It should be noted that the first transmission wheel 57 and the second transmission wheel 58 can be selectively configured as one of a gear, a roller, a sprocket, a pulley, a friction wheel, etc. Preferably, both the first transmission wheel 57 and the second transmission wheel 58 are configured as gears.

[0320] As some preferred embodiments of the present application, Fig.16 As shown, the electromagnetic heating cooking appliance 200 further includes a magnetic shield 52, which is made of metal material and is used to cover at least part of the driving device 50 (for example, the motor 51) to shield the magnetic field generated by the disc winding 182. For example, the motor 51 is mounted on the base 26 of the pot body 20 by two bolts 54, and the magnetic shield 52 can be simultaneously mounted to the base 26 by the two bolts 54, so that the housing of the motor 51 contacts the magnetic shield 52. The magnetic shield 52 has a through hole 56 for the motor shaft 59 to pass through.

[0321] As some preferred embodiments of the present application, the electromagnetic heating cooking appliance 200 further includes a grounding wire 53, one end of which is connected to the outer shell of the magnetic shielding cover 52 and / or the motor 51 (for example, fixed to the magnetic shielding cover 52 by bolts 54), and the other end of the grounding wire 53 is connected to the grounding terminal of the electromagnetic heating cooking appliance 200, for example, the grounding terminal on the circuit board assembly 22 or the grounding terminal on the power socket 27. Under the action of the grounding wire 53, the outer shell of the motor 51 and the magnetic shielding cover 52 are grounded together, which can also effectively improve the magnetic shielding effect of the magnetic shielding cover 52.

[0322] In order to achieve a better magnetic isolation effect, the motor shaft 59 can be further selectively made of non-metallic materials. Of course, the motor shaft 59 can also be made of metal materials. In addition, the transmission assembly 55 (first transmission wheel 57, second transmission wheel 58, etc.) included in the drive device 50 can also be made of non-metallic materials.

[0323] As some preferred embodiments of the present application, Fig.17 and Fig.18 As shown, the outer peripheral surface of the cylindrical portion 180C is further selectively provided with a connection structure 187 for connecting the drive device 50. The connection structure 187 for connecting the drive device 50 in the present application is not specifically limited, and it can be any structure that can connect the drive device 50 and rotate the wire drum assembly 270 (specifically, the wire drum frame 180).

[0324] As some examples of the aforementioned embodiments, the connection structure 187 may selectively include the second transmission wheel 58 (the transmission assembly 55 only includes the first transmission wheel 57), the second transmission wheel 58 is integrally formed with the cylindrical portion 180C, and the axis of the second transmission wheel 58 coincides with the central axis of the cylindrical portion 180C. Thus, the connection structure 187 is used to connect with the first transmission wheel 57 of the driving device 50.

[0325] As a convertible embodiment, the driving device 50 can selectively include a second transmission wheel 58, and the connecting structure 187 is used to connect 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 coincides with the central axis of the cylindrical portion 180C. The second transmission wheel 58 is an annular structure, which is used to be sleeved on the outer periphery of the cylindrical portion 180C. The connecting structure 187 is provided on the outer peripheral surface of the cylindrical portion 180C, and is used to connect the second transmission wheel 58.

[0326] The connection structure 187 includes a first limit stop surface 180I. The first limit stop surface 180I extends outward from the outer peripheral surface of the cylindrical portion 180C along the radial direction of the cylindrical portion 180C and toward the second end 180Y of the cylindrical portion 180C, and is used to limit the second transmission wheel 58 from moving toward the wire coiling frame 180 along the axial direction of the cylindrical portion 180C. In a specific implementation, an annular convex rib is provided in the middle of the outer side of the cylindrical portion 180C, and the surface of the annular convex rib facing the second end of the cylindrical portion 180C is the first limit stop surface 180I. The present application can limit the axial position of the second transmission wheel 58 by making the connection structure include the first limit stop surface 180I to prevent the second transmission wheel 58 from moving toward the wire coiling frame 180.

[0327] As some preferred embodiments of the present application, the inner circumferential surface of the second transmission wheel 58 may be selectively provided with at least one second connecting body 58F (see Fig.16 ), the connection structure 187 includes at least one first connection body 180D, the first connection body 180D is used to be arranged corresponding to the second connection body 58F and connected to the second connection body, and the first connection body 180D is closer to the second end 180Y of the cylindrical portion 180C than the first limit stop surface 180I. When the second transmission wheel 58 is installed to the set position, the first connection body 180D is engaged with the second connection body 58F to limit the second transmission wheel 58 from rotating relative to the connection structure 187, so that the cylindrical portion 180C can rotate synchronously with the second transmission wheel 58.

[0328] 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 180D corresponding to the second connectors 58F and provided at intervals along the circumferential direction of the cylindrical portion 180C. It should be noted that the number of the second connectors 58F provided on the inner circumferential surface of the second transmission wheel 58 is not specifically limited, and may be selectively provided according to actual needs.

[0329] As some preferred embodiments under the aforementioned embodiments, the first connecting body 180D is further made into a convex rib provided on the outer peripheral surface of the cylindrical portion 180C, and the second connecting body 58F is a limiting groove provided on the inner peripheral surface of the second transmission wheel 58, and the limiting groove 58F extends along the axial direction of the second transmission wheel 58, and the limiting groove 58F is used to accommodate the convex rib 180D. As some alternative embodiments, the second connecting body 58F can also be selectively made into a convex rib provided on the inner peripheral surface of the second transmission wheel 58, and the first connecting body 180D is a limiting groove provided on the outer peripheral surface of the cylindrical portion 180C, and the limiting groove extends along the axial direction of the cylindrical portion 180C, and the limiting groove is used to accommodate the convex rib on the inner peripheral surface of the second transmission wheel 58.

[0330] The present application can quickly fix the second transmission wheel 58 to the cylindrical portion 180C by providing the rib 180D and the limiting groove 58F, which can effectively improve the 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.

[0331] like Fig.17 and Fig.18As shown, as some preferred embodiments of the present application, the connection structure 187 may further include at least one limiting guide structure 180E. The limiting guide structure 180E is arranged on the outer peripheral 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, and the second limiting stop surface 180K extends outward from the outer peripheral 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 180I. In specific implementation, the connection structure 187 may further selectively include a plurality of limiting guide structures 180E, and the plurality of limiting guide structures 180E are arranged at intervals along the circumferential direction of the cylindrical portion 180C.

[0332] As a preferred embodiment under some of the aforementioned embodiments, Fig.18 As shown, the position limiting guide structure 180E has a guide slope 180H located on the side facing away from the cylindrical portion 180C, and the guide slope 180H is configured to be inclined relative to the axis of the cylindrical portion 180C, so that the distance between the end of the guide slope 180H facing the second end 180Y of the cylindrical portion 180C and the axis of the cylindrical portion 180C is smaller than the distance between the end of the guide slope 180H facing the first end 180X of the cylindrical portion 180C and the axis of the cylindrical portion 180C. The parts of the cylindrical portion 180C located on both sides of the position limiting guide structure 180E along the circumferential direction of the cylindrical portion 180C are configured as functional grooves 180L extending along the axial direction of the cylindrical portion 180C, and the functional grooves 180L penetrate the side wall of the cylindrical portion 180C.

[0333] It should be pointed out that the structure of the position-limiting guide structure 180E in the present application is not specifically limited, and it can be any structure that can play a guiding role when installing the second transmission wheel 58 and a limiting role after the second transmission wheel 58 is installed in place. Similarly, the number of position-limiting guide structures 180E included in the connection structure 187 is also not specifically limited, and it can be selectively set according to actual needs. The number of position-limiting guide structures 180E included in the connection structure 187 can be selectively made to be two, three, four, five or more than six. For example, the connection structure 187 includes four position-limiting guide structures 180E, and the four position-limiting guide structures 180E are arranged at equal intervals along the circumferential direction of the cylindrical portion 180C.

[0334] According to the present application, by providing a plurality of position limiting guide structures 180E, the second transmission wheel 58 can be guided at multiple points, which is helpful for the rapid installation of the second transmission wheel 58. Secondly, by providing a guiding slope 180H on the position limiting guide structure 180E, the second transmission wheel 58 can be quickly connected to the cylindrical portion 180C under the action of the guiding slope 180H. In addition, by providing functional grooves 180L penetrating the cylindrical portion 180C on both sides of the position limiting guide structure 180E, when the second transmission wheel 58 is installed, the position limiting guide structure 180E in a cantilever state will be displaced toward the center of the cylindrical portion 180C, so that the second transmission wheel 58 can be more easily installed to the set position.

[0335] It should be pointed out that the second transmission wheel 58 in the present application is not specifically limited, and it can be any wheel body that can realize power transmission.

[0336] like Fig.19 As shown in FIG. 20 , as some preferred embodiments of the present application, the wire coil assembly 270 further includes at least one first enameled wire 189 and at least one connecting wire assembly 186. The first enameled wire 189 is used to be coiled into a disc-shaped winding 182. The first enameled wire 189 has a first connection point 189A and a second connection point 189B along the length, and the portion of the first enameled wire 189 located between the first connection point 189A and the second connection point 189B is coiled around at least one winding center to form at least one disc-shaped winding 182, which is used to constitute the resonant inductance of the electromagnetic heating resonant circuit. All the disc-shaped windings 182 are arranged on the coiling rack 180 along the circumferential direction of the coiling rack 180. The connecting wire assembly 186 is arranged corresponding to the first enameled wire 189. One end of the connecting component 186 is used to connect to the first connection point 189A and the second connection point 189B, and the other end of the connecting component 186 is used to connect to the circuit board assembly 22, so that the disc winding 182 and the circuit board assembly 22 always remain conductive (the disc winding 182 and the circuit board assembly 22 always remain conductive during the rotation of the coil rack 180).

[0337] It should be noted that the connection assembly 186 in the present application is not specifically limited, and it can be any structure that can keep the disc winding 182 and the circuit board assembly 22 always connected. In a specific implementation, the connection assembly 186 can be a wire or a brush slip ring assembly.

[0338] like Fig.19 , Fig.20a and Fig.20bAs shown, the connection assembly 186 includes a first wiring segment 182C and a second wiring segment 182D. One end of the first wiring segment 182C is used to connect to the first connection point 189A, and the other end of the first wiring segment 182C is used to connect to the circuit board assembly 22. One end of the second wiring segment 182D is used to connect to the second connection point 189B, and the other end of the second wiring segment 182D is used to connect to the circuit board assembly 22. In a specific implementation, the first wiring segment 182C can be selectively made to be a part of the first enameled wire 189, for example, a section of the first enameled wire 189 located on the side opposite to the coiled wire 182 of the first connection point 189A. Similarly, the second wiring segment 182D is made to be a part of the first enameled wire 189, for example, a section of the first enameled wire 189 located on the side opposite to the coiled wire 182 of the second connection point 189B. As a convertible embodiment, the first wiring segment 182C and the first enameled wire 189 may be selectively different enameled wires, and the second wiring segment 182D and the first enameled wire 189 may be selectively different enameled wires.

[0339] like Fig.19 , Fig.20a and Fig.20b As shown, the first enameled wire 189 is further selectively made to include a coiling portion 182A and two terminal portions 182B. The coiling portion 182A is coiled around the winding center on the coiling frame 180 to form an effective resonant inductance of the electromagnetic heating resonant circuit. The two terminal portions 182B are portions of the first enameled wire 189 that are not used to form an effective resonant inductance, and the coiling portion 182A is located between the two terminal portions 182B. The ends of the two terminal portions 182B away from the coiling portion 182A are respectively the first connection point 189A and the second connection point 189B. The coiled winding 182 is arranged on the side of the second end 180Y of the coiling frame 180 facing the cylindrical portion 180C, and at least part of the terminal portion 182B is wired along the outer peripheral surface of the cylindrical portion 180C. It can be understood that the coiling portion 182A is coiled around the winding center in the winding area 283K. The coiled portion 182A is, for example, spirally coiled around a winding center.

[0340] As some preferred embodiments of the present application, Fig.19 and Fig.21 As shown, the outer peripheral surface of the cylindrical portion 180C may be further selectively provided with at least one first bundling member 180P, which is used to gather all the terminal portions 182B to the outer peripheral surface of the cylindrical portion 180C, so that at least part of the terminal portions 182B are routed along the outer peripheral surface of the cylindrical portion 180C. It should be noted that the number of the first bundling members 180P provided on the cylindrical portion 180C is not specifically limited, and it may be selectively provided according to the length of the cylindrical portion 180C.

[0341] In order to better fix the terminal portion 182B, a plurality of first bundle members 180P are further provided on the cylindrical portion 180C, and the plurality of first bundle members 180P are arranged at intervals along the axial direction of the cylindrical portion 180C, so that at least a portion of the terminal portion 182B is wired along the axial direction of the cylindrical portion 180C on the outer peripheral surface of the cylindrical portion 180C. Fig.19 As shown, two first bundling members 180P are arranged at intervals in the axial direction of the cylindrical portion 180C so that parts of the terminal portions 182B are routed in the axial direction of the cylindrical portion 180C on the outer peripheral surface of the cylindrical portion 180C.

[0342] like Fig.21 As shown, as some preferred embodiments of the present application, the first bundle 180P is further selectively made to include a first constraint portion 180Q and a second constraint portion 180R. The first constraint portion 180Q extends from the outer peripheral surface of the cylindrical portion 180C in a direction away from the cylindrical portion 180C. The second constraint portion 180R is connected to one end of the first constraint portion 180Q away from the outer peripheral surface of the cylindrical portion 180C, and extends generally along the circumferential direction of the cylindrical portion 180C, so that a first enameled wire limiting groove is formed between the second constraint portion 180R and the outer peripheral surface of the cylindrical portion 180C, and all the terminal portions 182B are gathered in the limiting groove. By making the first bundle 180P include a limiting groove formed by the first constraint portion 180Q and the second constraint portion 180R, the terminal portion 182B can be quickly gathered in the limiting groove, making the wiring process more convenient and easy to operate.

[0343] In order to enable the end portions 182B to be grouped and fixed, the second constraint portion 180R is further extended from one end of the first constraint portion 180Q away from the outer peripheral surface of the cylindrical portion 180C along the circumferential direction of the cylindrical portion 180C toward both sides, and a first limiting groove 180S and a second limiting groove 180T are formed on both sides of the first constraint portion 180Q, and all the ends having the first connection point 189A are gathered in the first limiting groove 180S, and all the end portions 182B having the second connection point 189B are gathered in the second limiting groove 180T.

[0344] As some preferred embodiments of the present application, the cable drum device 260 may further selectively include a second bundling member, which is used to gather all the first wiring segments 182C. The cable drum device 260 may also include a third bundling member, which is used to gather all the second wiring segments 182D. In specific implementations, the second bundling member and the third bundling member may selectively be configured as insulating sleeves.

[0345] In specific implementation, Fig. 22As shown, the electromagnetic heating cooking appliance 200 also includes a first wiring terminal 23A and a second wiring terminal 23B. The circuit board assembly 22 also includes a first power supply line 24A and a second power supply line 24B. The first wiring terminal 23A and the second wiring terminal 23B are both arranged on the base 26. The first power supply line 24A and the second power supply line 24B are wiring conductors extending from the printed circuit board of the circuit board assembly 22. One end of the first power supply line 24A is connected to the printed circuit board of the circuit board assembly 22, and the other end is connected to the first wiring terminal 23A. One end of the second power supply line 24B is connected to the printed circuit board of the circuit board assembly 22, and the other end is connected to the second wiring terminal 23B. One end of the first wiring segment 182C is connected to the first connection point 189A, and the other end is connected to the first wiring terminal 23A. One end of the second wiring segment 182D is connected to the second connection point 189B, and the other end is connected to the second wiring terminal 23B.

[0346] Thus, the two ends 189A and 189B of the disc-shaped winding 182 are electrically connected to the printed circuit board of the circuit board assembly 22 through the combination of the first wiring segment 182C, the first wiring terminal 23A and the first power supply line 24A, and the combination of the second wiring segment 182D, the second wiring terminal 23B and the second power supply line 24B, so that the circuit board assembly 22 can supply power to the disc-shaped winding 182.

[0347] The first power supply line 24A and the second power supply line 24B can be single-strand wires or multi-strand wires. Specifically, the number of wire strands is consistent with the number of the first enameled wires 189. That is, when the wire reel assembly 270 includes M first enameled wires 189, the first power supply line 24A includes M wires (strands), and the second power supply line 24B includes M wires (strands). Fig.20a In the illustrated embodiment, the wire reel assembly 270 includes a first enameled wire 189, and the three coiled wires 182 are all formed by winding the first enameled wire 189. The first power supply line 24A and the second power supply line 24B each include only one (strand) of wire. Fig.20b In the illustrated embodiment, the wire reel assembly 270 includes three first enameled wires 189 , wherein each first enameled wire 189 is coiled into a coil-shaped winding 182 , and the first power supply wire 24A and the second power supply wire 24B each include three (strands) of conductors.

[0348] As some preferred embodiments of the present application, the base 26 is further selectively provided with a wiring guide assembly 26C for guiding the first wiring segment 182C and the second wiring segment 182D, and the wiring guide assembly 26C is located below the cable tray 180. Specifically, as Fig. 22As shown, the wiring guide assembly 26C includes a first vertical rib group and a second vertical rib group. The first vertical rib group includes a plurality of first vertical ribs 26A spaced apart from each other, the plurality of first vertical ribs 26A are located between the central axis of the first wiring terminal 23A and the wire coiling rack 180, and the first wiring segment 182C sequentially passes through the gap between two adjacent first vertical ribs 26A and is wired in an S-shape. The second vertical rib group includes a plurality of second vertical ribs 26B spaced apart from each other, the plurality of second vertical ribs 26B are located between the central axis of the second wiring terminal 23B and the wire coiling rack 180, and the second wiring segment 182D sequentially passes through the gap between two adjacent second vertical ribs 26B and is wired in an S-shape.

[0349] Preferably, the portion of the base 26 where the wiring guide assembly 26C is provided can be constructed as a recessed portion 26D of the base 26, and the cooking appliance 200 includes a cover (not shown) for covering the recessed portion 26D, so that the first wiring segment 182C and the second wiring segment 182D can be at least partially encapsulated to avoid interference between the first wiring segment 182C and the second wiring segment 182D and other components of the cooking appliance 200.

[0350] In specific implementation, Fig.20b , Fig.23 and Fig.24 As shown, the wire reel assembly 270 can reciprocate less than 360° around the central axis PA of the wire reel assembly relative to the cooking container 30. Specifically, Fig.20b is the initial position of the cable drum assembly 270 before rotation; Fig.23 is the position of the cable drum assembly 270 after positive rotation (for example, positive rotation of 60 degrees); Fig.24 It is the position after the wire reel assembly 270 is rotated in the reverse direction (for example, rotated in the reverse direction by 60 degrees). As can be seen from the figure, the connecting assembly 186 is pulled during the rotation of the wire reel assembly 270. Since the connecting assembly 186 has a sufficient length, the coiled wire 182 and the circuit board assembly 22 are always connected.

[0351] The present application enables at least a portion of the wire reel assembly 270 included in the cooking utensil 200 to be rotatable relative to the cooking container 30 around the central axis PA of the wire reel assembly, and enables at least one coiled wire 182 included in the wire reel assembly 270 to be arranged at intervals along the circumferential direction of the wire reel assembly 270. This can make the heating inside the cooking container 30 of the cooking utensil 200 more uniform during the cooking process, and can improve the problem of partially mushy or dry cooked rice.

[0352] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0353] In understanding the scope of the present application, the term "comprising" and its derivatives as used herein are intended to be open terms, which specify the existence of the recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

[0354] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration 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," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0355] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present application. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present application. The features described herein in one embodiment may be applied to another embodiment individually or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0356] The present application has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present application to the described embodiments. In addition, it can be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope of protection claimed by the present application.

Claims

1. A wire reel device for electromagnetic heating cooking utensils, It is characterized in that include: Supports; A wire drum assembly is connected to the support member, the wire drum assembly has a central axis of the wire drum assembly, and the wire drum assembly includes: a wire drum rack connected to the support and rotatable relative to the support about the central axis of the wire drum assembly, and At least one first enameled wire, each of the first enameled wires has a first connection point and a second connection point along its length, a portion of each of the first enameled wires located between the first connection point and the second connection point is coiled around at least one winding center to form at least one disc-shaped winding wire, for forming a resonant inductor of an electromagnetic heating resonant circuit, the disc-shaped winding wires are arranged at intervals along the circumferential direction of the winding frame, and the winding center is offset from the central axis of the winding frame; and At least one connection component is arranged corresponding to the first enameled wire, one end of the connection component is used to connect to the first connection point and the second connection point, and the other end of the connection component is used to connect to the circuit board assembly, so that the disc winding and the circuit board assembly always remain conductive, wherein the circuit board assembly is used to supply power to the disc winding.

2. The cable drum device according to claim 1, It is characterized in that The connection component comprises: a first wiring segment, one end of which is used to connect to the first connection point, and the other end of which is used to connect to the circuit board assembly; A second wiring segment, one end of the second wiring segment is used to connect to the second connection point, and the other end of the second wiring segment is used to connect to the circuit board assembly.

3. The wire drum device according to claim 2, It is characterized in that The first wiring segment is a segment of the first enameled wire located on the side of the first connection point opposite to the disc-shaped winding; and / or The second wiring segment is a segment of the first enameled wire located on the side of the second connection point opposite to the disc-shaped winding.

4. The wire drum device according to claim 2, It is characterized in that The first enameled wire comprises: a coiled portion, coiled around the winding center on the coiling frame, for forming an effective resonant inductance of the electromagnetic heating resonant circuit, and Two terminal portions, the terminal portions are portions of the first enameled wire that are not used to form the effective resonant inductor, the winding portion is located between the two terminal portions, and the ends of the two terminal portions away from the winding portion are respectively the first connection point and the second connection point.

5. The cable drum device according to claim 4, It is characterized in that A cylindrical portion is provided in the central portion of the wire reel for connecting to a driving device for driving the wire reel to rotate, a first end of the cylindrical portion is connected to the central portion of the wire reel, a second end of the cylindrical portion extends in a direction away from the wire reel, the coiled wire is provided on a side of the wire reel facing the second end of the cylindrical portion, and at least a portion of the terminal portion is wired along the outer circumferential surface of the cylindrical portion.

6. The cable drum device according to claim 5, It is characterized in that The outer peripheral surface of the cylindrical portion is provided with at least one first bundling member for gathering all the terminal portions to the outer peripheral surface of the cylindrical portion so that at least part of the terminal portions are routed along the outer peripheral surface of the cylindrical portion.

7. The cable drum device according to claim 6, It is characterized in that The outer circumferential surface of the cylindrical portion is provided with a plurality of the first bundling members, and the plurality of the first bundling members are spaced apart along the axial direction of the cylindrical portion so that at least a portion of the terminal portion is wired along the axial direction of the cylindrical portion on the outer circumferential surface of the cylindrical portion, wherein the portion of the terminal portion wired along the outer circumferential surface of the cylindrical portion has a third connection point and a fourth connection point, the third connection point is closer to the first end of the cylindrical portion than the fourth connection point, and the third connection point is closer to the winding portion than the fourth connection point along the length of the first enameled wire.

8. The cable drum device according to claim 6, It is characterized in that The first bundle comprises: a first restraining portion extending from an outer peripheral surface of the cylindrical portion toward a direction away from the cylindrical portion; A second constraint portion, wherein the second constraint portion is connected to an end of the first constraint portion away from the outer circumferential surface of the cylindrical portion and extends generally along the circumferential direction of the cylindrical portion, so that a limiting groove is formed between the second constraint portion and the outer circumferential surface of the cylindrical portion, and the entire terminal portion is gathered in the limiting groove.

9. The cable drum device according to claim 8, It is characterized in that The second constraint portion extends toward both sides along the circumferential direction of the cylindrical portion from one end of the first constraint portion away from the outer circumferential surface of the cylindrical portion, and forms a first limiting slot and a second limiting slot on both sides of the first constraint portion, and all the ends having the first connection point are gathered in the first limiting slot, and all the ends having the second connection point are gathered in the second limiting slot.

10. The cable drum device according to claim 5, It is characterized in that A wire drum through hole is formed inside the cylindrical portion, and the wire drum through hole extends along the axial direction of the wire drum rack. The support member is matched with the wire drum through hole, so that the wire drum rack can rotate around the central axis of the wire drum assembly relative to the support member.

11. The cable drum device according to claim 10, It is characterized in that At least part of the support member is disposed in the wire drum through hole, and the wire drum through hole and the support member are connected via a rotary auxiliary structure, wherein the axis of the rotary auxiliary structure coincides with the central axis of the wire drum assembly.

12. The cable drum device according to claim 11, It is characterized in that An annular groove is formed on the outer periphery of the support member for accommodating the rotary auxiliary structure; and / or The inner peripheral surface of the wire drum through hole of the wire drum device has a blocking surface extending toward the cylindrical portion along the radial direction of the wire drum through hole, and the blocking surface is used to contact the side of the rotary auxiliary structure facing the first end of the support member.

13. The cable drum device according to claim 5, It is characterized in that A connection structure for connecting the driving device is provided on the outer peripheral surface of the cylindrical portion, and the central axis of the cylindrical portion coincides with the central axis of the wire coiling rack.

14. The cable drum device according to claim 13, It is characterized in that A second transmission wheel is integrally formed or connected to the connection structure, the second transmission wheel is connected to the cylindrical portion, and the axis of the second transmission wheel coincides with the central axis of the cylindrical portion; or, The driving device comprises a second transmission wheel, which is an annular structure and is used to be sleeved on the outer circumference of the cylindrical portion. The connecting structure is used to connect the second transmission wheel.

15. The cable drum device according to claim 14, It is characterized in that The connecting structure includes a first limit stop surface, which extends outward from the outer peripheral surface of the cylindrical portion along the radial direction of the cylindrical portion and toward the second end of the cylindrical portion, and is used to limit the second transmission wheel from moving toward the wire coil rack along the axial direction of the cylindrical portion.

16. The cable drum device according to claim 15, It is characterized in that At least one second connecting body is provided on the inner circumferential surface of the second transmission wheel, and the connecting structure includes at least one first connecting body, the first connecting body is correspondingly arranged with the second connecting body, and is used to connect the second connecting body, and the first connecting body is closer to the second end of the cylindrical portion than the first limit stop surface; When the second transmission wheel is installed at a set position, the first connecting body is engaged with the second connecting body to limit the second transmission wheel from rotating relative to the connecting structure.

17. The cable drum device according to claim 16, It is characterized in that The connection structure includes a plurality of first connection bodies arranged at intervals along the circumferential direction of the cylindrical portion.

18. The cable drum device according to claim 16, It is characterized in that The second connecting body is a limiting groove provided on the inner circumferential surface of the second transmission wheel, the limiting groove extends along the axial direction of the second transmission wheel, and the first connecting body is a convex rib provided on the outer circumferential surface of the cylindrical portion, the limiting groove is used to accommodate the convex rib; or, The second connecting body is a convex rib arranged on the inner circumferential surface of the second transmission wheel, and the first connecting body is a limiting groove arranged on the outer circumferential surface of the cylindrical portion. The limiting groove extends along the axial direction of the cylindrical portion and is used to accommodate the convex rib.

19. The cable drum device according to claim 15, It is characterized in that The connecting structure also includes at least one limit guide structure, which is arranged on the outer circumferential surface of the cylindrical portion, and the side of the limit guide structure facing the first end of the cylindrical portion includes a second limit stop surface, and the second limit stop surface extends outward from the outer circumferential surface of the cylindrical portion along the radial direction of the cylindrical portion, and the second limit stop surface is closer to the second end of the cylindrical portion than the first limit stop surface.

20. The cable drum device according to claim 19, It is characterized in that The limiting guide structure has a first outer surface located on a side facing away from the cylindrical portion, and the first outer surface is configured to be inclined relative to the axis of the cylindrical portion, so that the distance between the end of the first outer surface facing the second end of the cylindrical portion and the axis of the cylindrical portion is smaller than the distance between the end of the first outer surface facing the first end of the cylindrical portion and the axis of the cylindrical portion. Portions of the cylindrical portion located on both sides of the limiting guide structure along the circumferential direction of the cylindrical portion are configured as functional grooves extending along the axial direction of the cylindrical portion, and the functional grooves penetrate through the side wall of the cylindrical portion.

21. The cable drum device according to claim 19, It is characterized in that The connection structure includes a plurality of the position limiting guide structures, and the plurality of position limiting guide structures are arranged at intervals along the circumferential direction of the cylindrical portion.

22. The cable drum device according to claim 10, It is characterized in that The support member includes a first support member end portion and a second support member end portion which are oppositely arranged along the axial direction of the cylindrical portion, wherein the first support member end portion corresponds to the first end of the cylindrical portion, and the second support member end portion corresponds to the second end of the cylindrical portion.

23. The cable drum device according to claim 22, It is characterized in that The support member also includes: A first support member disposed at a first end portion of the support member; and The second support member is arranged at the second end of the support member and connected to the first support member.

24. The cable drum device according to claim 23, It is characterized in that One end of the first support member used for connecting to the second support member has a first outer diameter, one end of the second support member used for connecting to the first support member has a second outer diameter, one end of the second support member away from the first support member has a third outer diameter, the first outer diameter is greater than the second outer diameter, the third outer diameter is greater than the second outer diameter, and the rotary sub-structure is arranged on the part of the second support member having the second outer diameter.

25. The cable drum device according to claim 22, It is characterized in that The cable drum device also includes a first blocking member, which is arranged at the first end of the support member, and the first blocking member includes a first blocking portion extending outward in the radial direction of the cable drum assembly to block the cable drum rack from moving in the axial direction of the cable drum assembly toward a direction away from the second end of the support member.

26. The cable drum device according to claim 25, It is characterized in that The first blocking member further includes a first connecting portion, the first connecting portion is connected to the first blocking portion, and the first connecting portion is used to connect the first end portion of the supporting member.

27. The cable drum device according to claim 26, It is characterized in that The first connecting portion is configured as a sleeve extending in the axial direction of the cable drum assembly, and the sleeve is sleeved on the outer periphery of the first end portion of the support member.

28. A cable drum device according to any one of claims 1 to 27, It is characterized in that The wire drum assembly further includes at least one wire drum support, the coiled wire is wound on the wire drum support, and the wire drum supports are connected to the wire drum frame and are arranged at intervals along the circumferential direction of the wire drum frame.

29. A cable drum device according to any one of claims 2 to 27, It is characterized in that The cable drum device further comprises a second bundling member, the second bundling member being used to gather all the first wiring segments; and / or The cable drum device further comprises a third bundling member, and the third bundling member is used for gathering all the second wiring segments.

30. The cable drum device according to claim 29, It is characterized in that The second bundling component and / or the third bundling component are configured as insulating sleeves.

31. A cable drum device according to any one of claims 11 to 27, It is characterized in that The rotary auxiliary structure is configured as a rolling bearing or a sliding sleeve; and / or The rotary auxiliary structure is made of non-metallic material.

32. A cable drum device according to any one of claims 2 to 27, It is characterized in that The wire drum assembly includes a plurality of the coiled wires, and the plurality of the coiled wires are arranged on the wire drum at equal intervals along the circumferential direction of the wire drum.

33. A cable drum device according to any one of claims 2 to 27, It is characterized in that The axial cross section of the wire coiling rack is a C-shaped structure.

34. The cable drum device according to claim 33, It is characterized in that The coiled winding is arranged outside the C-shaped structure; and / or The cable drum has a radially symmetrical structure.

35. A cable drum device according to any one of claims 1 to 27, It is characterized in that The wire reel assembly includes a plurality of the coiled wires; At least part of the plurality of coil-shaped windings is formed by winding one first enameled wire; or, each of the coil-shaped windings is formed by winding a different first enameled wire.

36. An electromagnetic heating cooking appliance, It is characterized in that include: The wire drum device according to any one of claims 2 to 35; a cooking container, detachably arranged on one side of the wire reel device from the wire reel device, wherein the cooking container comprises a ferromagnetic material; A driving device, connected to the wire drum frame, for driving the wire drum frame to rotate relative to the support member around the central axis of the wire drum assembly; and A circuit board assembly is connected to the other end of the wiring assembly to supply power to the coiled wire.

37. The electromagnetic heating cooking device according to claim 36, It is characterized in that The driving device comprises: a drive assembly for providing a driving force for rotating the cable drum relative to the support member; and The transmission assembly is connected between the driving assembly and the wire coiling frame and is used to transmit the driving force to the wire coiling frame.

38. The electromagnetic heating cooking device according to claim 37, It is characterized in that The drive assembly is configured as a motor; and / or The electromagnetic heating cooking appliance further comprises a grounding wire, one end of which is connected to the housing of the driving assembly, and the other end of which is connected to a grounding terminal of the electromagnetic heating cooking appliance.

39. The electromagnetic heating cooking device according to claim 37, It is characterized in that The transmission component is made of non-metallic material.

40. The electromagnetic heating cooking device according to claim 36, It is characterized in that It also includes a magnetic shielding cover, which is used to cover at least part of the driving device to shield the magnetic field generated by the disc winding.

41. The electromagnetic heating cooking device according to claim 40, It is characterized in that The invention also comprises a grounding wire, one end of which is connected to the magnetic shield, and the other end of which is connected to the grounding terminal of the electromagnetic heating cooking appliance.

42. The electromagnetic heating cooking device according to claim 36, It is characterized in that The electromagnetic heating cooking appliance further comprises a pot body, wherein a receiving cavity is formed on the pot body, wherein the wire reel device is arranged in the receiving cavity, and the cooking container is removably placed in the receiving cavity. When the cooking container is located in the accommodating cavity, the central axis of the cooking container substantially coincides with the central axis of the wire reel assembly.

43. The electromagnetic heating cooking device according to any one of claims 36 to 42, It is characterized in that The circuit board assembly further comprises: a first power supply line, the first power supply line being electrically connected to the first wiring terminal, the first power supply line comprising M wires, where M is the number of the first enameled wires; and A second power supply line, wherein the second power supply line is electrically connected to the second wiring terminal, and the second power supply line includes M wires, wherein M is the number of the first enameled wires.

44. The electromagnetic heating cooking device according to claim 43, It is characterized in that The electromagnetic heating cooking appliance further comprises: A first wiring terminal, disposed on the base, the first wiring terminal being electrically connected to the other end of the first wiring segment and connected to the first power supply line; and The second wiring terminal is arranged on the base, and the second wiring terminal is electrically connected to the other end of the second wiring segment and is connected to the second power supply line.

45. The electromagnetic heating cooking device according to claim 44, It is characterized in that The coiled wire is located on the downward side of the wire coiling rack. The base is provided with a wiring guide assembly for guiding the wiring of the first wiring segment and / or the second wiring segment. The wiring guide assembly is located below the wire coiling rack.

46. ​​The electromagnetic heating cooking device according to claim 45, It is characterized in that The wiring guide assembly comprises: A first vertical rib group, wherein the first vertical rib group includes a plurality of first vertical ribs spaced apart from each other, wherein the plurality of first vertical ribs are located between the first wiring terminal and the central axis of the cable tray, and the first wiring segment sequentially passes through a gap between two adjacent first vertical ribs and is wired in an S-shape; and / or The second vertical rib group includes a plurality of second vertical ribs spaced apart from each other, the plurality of second vertical ribs are located between the second connecting terminal and the central axis of the cable drum, and the second connecting segment passes through the gap between two adjacent second vertical ribs in sequence and is wired in an S shape.

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