Lids and cooking utensils

Abstract

To provide novel lid body and cooking tool.SOLUTION: The present disclosure relates to a technology field of a kitchen tool and particularly, to lid body and cooking tool. The lid body includes an inner pot, a steam valve, and a coil module. A recess is provided in one side of the inner pot. At least a part of the steam valve is arranged in the inside of the recess. The coil module is provided in one side of the inner pot. The coil module is provided with a temperature controller. A side of the temperature controller shifted from the center of the coil module is provided in proximity to the steam valve. The lid body discharges the steam in the pot to the outside of the pot via the steam valve in the cooking process of the cooking tool. By providing the side of the temperature controller shifted from the center of the coil module in proximity to the steam valve, it is advantageous to measure the temperature of the steam in the pot by the temperature controller, accuracy of measuring the temperature in the inside of the pot for adjusting the heating temperature of the cooking tool with respect to the inner pot is improved, accuracy of adjusting the heating temperature of the inner pot is improved, and thereby, the quality of cooking rice of the cooking tool is effectively improved.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to the technical field of kitchenware, and in particular to lids and cooking utensils. [Background technology]

[0002] Currently, many rice cookers have a temperature controller at the bottom of the pot body, which measures the temperature of the inner pot and estimates the temperature inside the pot body, thereby achieving temperature control for the rice cooker. However, since the temperature controller is installed at the bottom of the rice cooker to measure the temperature of the inner pot, it is not possible to directly measure the temperature inside the pot body, which results in poor accuracy in temperature measurement and a poor texture of cooked rice. Summary of the Invention [Problem to be solved by the invention]

[0003] The present disclosure provides a lid and a cooking utensil to solve the above technical problems. [Means for solving the problem]

[0004] The present disclosure relates to An inner lid having a recess on one side; a steam valve disposed at least partially within the recess; A lid body is provided, the lid body including: a coil module provided on one side of the inner lid, the coil module having a temperature controller, and a side of the temperature controller that is offset from the center of the coil module being provided adjacent to the steam valve.

[0005] Optionally, the device may further include an insulated cover plate, the insulated cover plate being provided on a side of the inner cover away from the coil module, and the temperature measuring end of the temperature controller extending between the insulated cover plate and the inner cover through the inner cover.

[0006] Optionally, a boss is formed on the side of the heat-insulating cover plate away from the inner cover, and a groove suitable for corresponding to the boss is formed on the side of the heat-insulating cover plate toward the inner cover, and the temperature measuring end of the temperature controller is positioned in the groove.

[0007] Optionally, an aperture is provided on a side surface of the boss away from the inner lid, and the temperature controller is provided corresponding to the aperture.

[0008] Optionally, an orthogonal projection of the temperature measuring end of the temperature controller on the thermal cover plate covers at least a portion of the aperture.

[0009] Optionally, the temperature measuring end of the temperature controller abuts against the boss.

[0010] Optionally, the coil module includes a coil disk, an AC coil is wound around the coil disk, the AC coil is arranged on the outer periphery of the temperature controller, and at least a portion of the AC coil is projected orthogonally onto the heat-insulating cover plate within the groove.

[0011] Optionally, an orthogonal projection area of ​​the AC coil on a side surface of the groove facing the inner lid is equal to or greater than ¼ of an area of ​​a side surface of the groove facing the inner lid.

[0012] Optionally, the recessed groove is disposed within a region surrounded by an edge of an orthogonal projection of the AC coil on the heat-retaining cover plate.

[0013] Optionally, the AC coil has an elliptical structure, and the inner cover has the steam valve provided on a minor axis side of the elliptical structure.

[0014] Optionally, an opening suitable for corresponding to the coil module is provided in the inner cover, and a heat-retaining seat plate is provided in the opening.

[0015] Optionally, the heat retaining seat plate is provided with a through hole suitable for extending the temperature controller.

[0016] Optionally, the thermal cover plate comprises a conductive material.

[0017] The present application further provides a cooking utensil including the above-mentioned lid. Effect of the Invention

[0018] In the lid provided in the present application, a recess is provided on one side of the inner lid, at least a part of the steam valve is disposed in the recess, a coil module is provided on one side of the inner lid, and a temperature controller is provided at the center of the coil module, and the side of the temperature controller that is off-center of the coil module is provided adjacent to the steam valve. During the cooking process, the steam in the pot is discharged to the outside of the pot through the steam valve, and the side of the temperature controller that is off-center of the coil module is provided adjacent to the steam valve, which is advantageous for the temperature controller to measure the temperature of the steam in the pot, improve the accuracy of measuring the temperature in the pot, so as to adjust the heating temperature of the cooking utensil to the inner pot, improve the accuracy of adjusting the heating temperature of the inner pot, and thereby effectively improve the quality of the rice cooked in the cooking utensil. [Brief description of the drawings]

[0019] The drawings described herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure, and together with the specification serve to explain the principles of the present disclosure. Next, in order to more clearly explain the technical solutions in the embodiments or prior art of the present disclosure, drawings necessary for describing the embodiments or prior art are briefly introduced, and it goes without saying that those skilled in the art can obtain further drawings from these drawings without any creative efforts.

[0020] [Figure 1] FIG. 2 is an exploded view of a lid according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a partial cross-sectional view of a lid according to an embodiment of the present disclosure. [Diagram 3] FIG. 2 is a cross-sectional view of a lid according to an embodiment of the present disclosure. [Figure 4] FIG. 4 is an enlarged view of part A in FIG. [Diagram 5] 1 is a flowchart showing a process for cooking rice using a cooking utensil according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] In the following, the solutions of the present disclosure will be further described so as to make the above objectives, features and advantages of the present disclosure more clearly understood. It should be noted that, unless there is a contradiction, the embodiments and features of the embodiments of the present disclosure can be combined with each other.

[0022] In the following description, numerous details are set forth in order to provide a thorough understanding of the present disclosure; however, the present disclosure may be implemented in other ways than as described herein, and it is understood that the embodiments of the specification are merely some, but not all, of the embodiments of the present disclosure.

[0023] Currently, many rice cookers have a temperature controller at the bottom of the pot body, which measures the temperature of the inner pot and estimates the temperature inside the pot body, thereby achieving temperature control for the rice cooker. However, since the temperature controller is installed at the bottom of the rice cooker to measure the temperature of the inner pot, it is not possible to directly measure the temperature inside the pot body, which results in poor accuracy in temperature measurement and a poor texture of cooked rice.

[0024] The embodiments of the present disclosure disclose a lid and a cooking utensil that can effectively solve the above technical problems.

[0025] As shown in FIGS. 1 to 5, an embodiment of the present disclosure includes: An inner lid having a recess 11 on one side; a steam valve disposed at least partially within the recess 11; A lid body is provided that includes a coil module provided on one side of the inner lid, the coil module having a temperature controller, and a side of the temperature controller that is off-center from the coil module being provided adjacent to a steam valve.

[0026] In the lid provided in the embodiment of the present disclosure, a recess 11 is provided on one side of the inner lid 1, at least a part of the steam valve 4 is disposed in the recess 11, a coil module 2 is provided on one side of the inner lid 1, and a temperature controller 22 is provided at the center of the coil module 2, and the off-center side of the coil module 2 of the temperature controller 22 is provided adjacent to the steam valve 4. The rice cooking process of the cooker includes a water absorption stage, a rapid heating stage, a boiling and holding stage, and a rice cooking stage. In the above rice cooking process, the steam in the pot is discharged to the outside of the pot through the steam valve 4, and by providing the off-center side of the coil module 2 of the temperature controller 22 adjacent to the steam valve 4, it is favorable for the temperature controller 22 to measure the temperature of the steam in the pot, so as to adjust the heating temperature of the cooker to the inner pot, improving the accuracy of measuring the temperature in the pot and improving the accuracy of adjusting the heating temperature of the inner pot, thereby effectively improving the quality of the rice cooking of the cooker.

[0027] Specifically, the above cooking utensil further includes an insulated cover plate, which is provided on the side of the inner lid away from the coil module 2, and the temperature measuring end of the temperature controller extends between the insulated cover plate and the inner lid through the inner lid.

[0028] In the above-mentioned lid body, a coil module 2 is provided on one side of the inner lid 1, and an insulated lid plate 3 is provided on the other side. A temperature controller 22 is provided on the coil module 2, and one end of the temperature controller 22 extends through the inner lid 1 between the insulated lid plate 3 and the inner lid 1. The rice cooking process of the cooker includes a water absorption stage, a rapid heating stage, a boiling and holding stage, and a rice cooking stage. During the water absorption stage, the rapid heating stage, and the boiling and holding stages, the thermal insulation cover plate 3 does not generate heat, and the temperature inside the pot can be transmitted between the thermal insulation cover plate 3 and the inner cover 1. The temperature controller 22 can measure the temperature inside the pot so as to adjust the heating temperature of the cooker for the inner pot. During the rice cooking stage, electricity is passed through the coil module 2 to make the thermal insulation cover plate 3 generate heat, and the temperature controller 22 can measure the temperature of the thermal insulation cover plate 3 so as to keep the thermal insulation cover plate 3 within a preset temperature range, thereby avoiding the formation of condensation on the surface of the thermal insulation cover plate 3 and avoiding the temperature of the thermal insulation cover plate 3 from being too high, and ensuring the safety of using the thermal insulation cover plate 3.

[0029] As shown in Figure 5, the above cookware is used in the rice cooking process. S1, which is the water absorption stage; The temperature controller detects the temperature in the pot in real time, and the control system judges whether the temperature and temperature increase in the pot are within a preset range based on the temperature data acquired by the temperature controller. If not, the control system controls the bottom heating device to increase or decrease the heating power until the temperature controller measures that the temperature in the pot reaches the boiling temperature, so as to make the temperature data in the pot fall within the preset range; S2 is a rapid heating stage; S3, which is a boiling hold stage; The heat-insulating cover plate is self-heating, the temperature controller monitors the temperature of the heat-insulating cover plate, and the control system judges whether the heat-insulating cover plate's heat-generating temperature is within a preset range, and if not, adjusts the heat-insulating cover plate's heat-generating temperature by increasing or decreasing the current value in the coil module until the rice cooking stage is completed. S4 is a rice cooking stage.

[0030] Specifically, in the rapid heating stage of the rice cooking process, the temperature controller presets the temperature and temperature increase in the pot in the program settings of the cooker, the temperature controller measures the temperature in the pot in real time, and if the temperature and temperature increase are within the preset range, the cooker maintains the current heating state to continue heating the inner pot, if the temperature value and temperature increase obtained based on the temperature data measured by the temperature controller are smaller than the preset range, the control system of the cooker increases the heating power to the inner pot, and when the data obtained by the temperature controller reaches the preset range, the heating power is maintained to heat the inner pot. If the temperature value and temperature increase in the pot obtained based on the temperature data measured by the temperature controller are larger than the preset range, the control system reduces the heating power to the inner pot, and when the data obtained by the temperature controller reaches the preset range, the heating power is maintained to heat the inner pot.

[0031] And when the temperature controller measures that the temperature in the pot reaches boiling temperature, it transitions to a hold boil phase.

[0032] After the boiling holding stage is completed, the process moves to the rice cooking stage. In this stage, the temperature controller measures the temperature of the heat-insulating cover plate. By the temperature controller measuring the temperature of the heat-insulating cover plate, the heat-insulating cover plate can be kept within a preset temperature range, effectively preventing condensation from occurring on the surface of the heat-insulating cover plate, thereby preventing the condensation from dripping onto the cooked rice during the rice cooking stage, causing the cooked rice to turn whitish and affecting the texture, and at the same time preventing potential safety hazards caused by the temperature of the heat-insulating cover plate being too high.

[0033] In some embodiments, a boss 31 is formed on the side of the heat-insulating cover plate 3 away from the inner cover 1, and a groove suitable for corresponding to the boss 31 is formed on the side of the heat-insulating cover plate 3 toward the inner cover 1, and the temperature measuring end of the temperature controller 22 is positioned in the groove.

[0034] A boss 31 is provided on the above-mentioned heat-retaining cover plate 3, the boss 31 is located close to the center of the inner pot and extends into the inner pot, and the temperature measuring end of the temperature controller 22 is located within the boss 31, thereby effectively reducing the distance between the temperature controller 22 and the center of the inner pot, and the temperature controller 22 is located close to the center of the inner pot, thereby improving the accuracy of the temperature measurement of the temperature controller 22 with respect to the inner pot.

[0035] Specifically, the temperature measuring end of the temperature controller 22 abuts on the side of the recessed groove facing the inner lid 1 .

[0036] The temperature measuring end of the above-mentioned temperature controller 22 abuts against the side of the groove facing the inner lid 1, that is, the temperature controller 22 abuts against the heat-retaining cover plate 3, so that the heat on the heat-retaining cover plate 3 can be directly transferred to the temperature controller 22. When the temperature of the inner pot is transferred to the heat-retaining cover plate 3 and the heat-retaining cover plate 3 self-heats, the temperature controller 22 measures the temperature by contacting the heat-retaining cover plate 3, which effectively improves the accuracy of the temperature measurement of the temperature controller 22, and thereby improves the accuracy of the temperature measurement of the inner pot and the measurement of the self-heating temperature of the heat-retaining cover plate 3.

[0037] The surface of the above-mentioned groove is flat, and by making the surface of the groove smooth and flat, the housing of the temperature controller is attached to and contacts the surface of the groove, thereby effectively improving the accuracy of temperature detection of the temperature controller relative to the heat-insulating cover plate.

[0038] In some embodiments, the groove has an opening 32 on the side facing the inner cover 1 that is suitable for being provided corresponding to the temperature controller 22 .

[0039] Specifically, the orthogonal projection of the temperature measuring end of the temperature controller on the thermal insulation cover plate covers at least a portion of the aperture 32 .

[0040] That is, an opening 32 is provided at the abutment position between the groove and the inner lid 1, and the steam in the inner pot can contact the temperature controller 22 through the opening 32, that is, the steam in the inner pot can directly contact the temperature controller 22, so that the control system controls the heating temperature of the bottom of the cookware for the inner pot based on the steam temperature in the pot, the temperature controller 22 obtains the temperature in the pot by measuring the temperature of the steam in the inner pot, thereby realizing the measurement of the inner pot temperature, and further improving the measurement accuracy of the temperature controller 22 for the inner pot temperature.

[0041] That is, by providing a temperature controller and measuring the temperature inside the pot during the rapid heating stage, it is possible to effectively control the heating power at the bottom of the cooker for the inner pot, and by monitoring the temperature of the heat-retaining cover plate during the rice cooking stage, it is possible to effectively avoid the occurrence of condensation water, ensure the gradual progress of each stage in the entire rice cooking process of the cooker, improve the texture of the cooked rice, effectively ensure the rice cooking efficiency of the cooker, and improve the rice cooking quality of the cooker and the safety of using the cooker.

[0042] In some embodiments, the coil module 2 includes a coil disk 21, an AC coil 23 is wound around the coil disk 21, the AC coil 23 is disposed on the outer circumferential side of the temperature controller 22, and at least a part of the orthogonal projection of the AC coil 23 on the heat-retaining cover plate 3 is within the groove. Specifically, the orthogonal projection area of ​​the AC coil 23 on the side surface facing the inner cover 1 of the groove can be set to be ¼ or more of the area of ​​the side surface facing the inner cover 1 of the groove. In addition, the groove is disposed within an area surrounded by the edge of the orthogonal projection of the AC coil 23 on the heat-retaining cover plate 3.

[0043] Specifically, the thermal insulation cover plate 3 includes a conductive material, for example, the thermal insulation cover plate 3 may be 304 stainless steel.

[0044] An AC coil 23 is wound around the coil disk 21, and the plane on which the AC coil 23 is arranged is parallel to the thermal insulation cover plate 3. The thermal insulation cover plate 3 is arranged so as to contain a conductive material. When an AC current is input to the AC coil 23, the direction of the AC current constantly changes, and therefore the magnetic field generated by the AC coil 23 constantly changes. This is equivalent to the thermal insulation cover plate 3 moving across the magnetic flux lines, generating heat within the thermal insulation cover plate 3, thereby realizing self-heating of the thermal insulation cover plate 3.

[0045] In addition, the heat-insulating cover plate 3 includes a heat-conductive material. Since the heat-insulating cover plate 3 includes a heat-conductive material, the heat is rapidly transferred on the heat-insulating cover plate 3, and the temperature of the entire heat-insulating cover plate 3 is uniform, thereby ensuring the condensation prevention effect of the heat-insulating cover plate 3.

[0046] The AC coil 23 is disposed on the outer periphery of the temperature controller 22 so that the boss 31 is located in the high temperature area when the heat-insulating cover plate 3 self-heats. The temperature controller 22 is attached closely to the boss 31, so that the boss 31 area is the high temperature area of ​​the heat-insulating cover plate 3, and the temperature controller 22 measures the temperature and controls the electric heating program to effectively prevent the high temperature area of ​​the heat-insulating cover plate 3 from overheating.

[0047] In some embodiments, the AC coil 23 is an elliptical structure, and the inner lid 1 is provided with a steam valve 4 on the minor axis side of the elliptical structure.

[0048] That is, the inner lid 1 includes two regions, a region for mounting the coil module 2 and a region for fitting and mounting the steam valve 4. In order to reduce the space required for mounting the coil module 2 and the steam valve 4, the AC coil 23 is provided as a coil with an elliptical structure, so that a space for mounting the steam valve is formed on the minor axis side of the elliptical structure. Since the AC coil 23 has an elliptical structure, the AC coil 23 is wound around the coil disk 21, and in order to reduce the space occupied by the coil disk 21, the dimension of the coil disk 21 along the minor axis direction of the AC coil 23 is smaller than the dimension of the coil disk 21 along the major axis direction of the AC coil 23. Specifically, the shape of the coil disk 21 can be various shapes such as an elliptical shape, a circular shape, a square shape, etc., but a D-shape is preferable.

[0049] That is, a steam valve is provided between the heat-insulating cover plate 3 and the inner cover 1, an intake hole and a return hole are provided in the heat-insulating cover plate 3 corresponding to the steam valve, and a recess 11 for accommodating the steam valve is provided in the area of ​​the inner cover 1 for fitting and attaching the steam valve 4.

[0050] Specifically, by sealingly connecting the steam valve to the inner lid 1 and the heat-retaining lid plate 3, respectively, the steam in the inner pot can only be discharged through the exhaust port of the steam valve, preventing the steam from entering between the heat-retaining lid plate 3 and the inner lid 1.

[0051] Furthermore, as shown in Figures 3 and 4, a sealing cover 10 is provided on the outer surface of the temperature controller 22, and at the contact position between the temperature controller 22 and the heat-insulating lid plate 3, the end of the sealing cover 10 abuts against the heat-insulating lid plate 3 so as to prevent steam in the pot from entering between the heat-insulating lid plate 3 and the inner lid 1.

[0052] Specifically, the thermally insulated cover plate 3 is easily connected to the inner cover 1 in a sealed manner, that is, a sealing ring and a sealing ring retaining ring are provided on the edge of the thermally insulated cover plate 3, and the sealing ring retaining ring can press the sealing ring against the edge of the thermally insulated cover plate 3 so as to seal the edge of the thermally insulated cover plate 3 and the inner cover 1, thereby preventing steam from entering between the thermally insulated cover plate 3 and the inner cover 1.

[0053] In some embodiments, an opening suitable for accommodating the coil module 2 is provided in the inner cover 1, and a heat-retaining seat plate 5 is provided in the opening.

[0054] The above-mentioned insulation base plate 5 can effectively perform insulating functions, effectively preventing the heat and water vapor of the insulation cover plate 3 from being transmitted to the coil module 2 and parts provided on the side of the inner cover 1 away from the insulation cover plate 3, and effectively performing a protective function for parts such as the coil module 2 provided on the side of the inner cover 1 away from the insulation cover plate 3.

[0055] In some embodiments, the heat retaining seat plate 5 is provided with a through hole suitable for allowing the temperature controller 22 to extend therethrough.

[0056] The temperature controller 22 is provided on the coil disk 21, and one end of the temperature controller 22 passes through a through hole on the heat-retaining seat plate 5 and comes into contact with the heating plate.

[0057] In order to prevent the heat of the heat-insulating cover plate 3 from entering the coil module 2 side through the through-hole, the heat-insulating seat plate 5 can be connected to the temperature controller 22 in a sealed manner.

[0058] The heat-insulating seat plate 5 can be made of glass, which has good strength, durability and heat resistance. Because the glass has visibility, when the heat-insulating cover plate 3 is removed, the user can intuitively see the coil disk 21.

[0059] Specifically, a seal ring 7 can be provided in the through hole, and the seal ring 7 abuts between the temperature controller 22 and the heat-retaining seat plate 5 .

[0060] In some embodiments, the heat-insulating cover plate 3 is removably connected to the inner cover 1. Since the heat-insulating cover plate 3 can directly contact the food in the inner pot, by removably connecting the heat-insulating cover plate 3 to the inner cover 1, the heat-insulating cover plate 3 can be easily washed, improving the convenience of washing the device.

[0061] In some embodiments, a magnetic shielding plate 6 is provided on the side of the coil module 2 away from the inner cover 1. The provision of the magnetic shielding plate 6 can effectively prevent the magnetic field generated by the AC coil 23 from radiating outside the cooking utensil, thereby avoiding electromagnetic radiation to the user and effectively ensuring the safety of the use of the cooking utensil.

[0062] Specifically, the lid body may further include a face cover, which is connected to the inner cover 1 to form a space between the face cover and the inner cover 1, and multiple types of components such as the coil module 2 are all arranged in the space.

[0063] An embodiment of the present disclosure further provides a cooking utensil including the above-described lid.

[0064] The cooking utensil provided in the embodiment of the present disclosure includes the above-mentioned lid body. A recess 11 is provided on one side of the inner lid 1 of the lid body, at least a part of the steam valve 4 is disposed in the recess 11, a coil module 2 is provided on one side of the inner lid 1, and a temperature controller 22 is provided at the center position of the coil module 2, and the side of the temperature controller 22 that is off-center of the coil module 2 is provided adjacent to the steam valve 4. The rice cooking process of the cooking utensil includes a water absorption stage, a rapid heating stage, a boiling and holding stage, and a rice cooking stage. In the above-mentioned rice cooking process, the steam in the pot is discharged to the outside of the pot through the steam valve 4, and by providing the side of the temperature controller 22 that is off-center of the coil module ...

[0065] It should be noted that, in this specification, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or suggest that such a relationship or order exists between these entities or operations. In addition, the terms "comprise", "include", or any other similar term may cover a non-exclusive inclusion, such that a process, method, article, or device that includes a set of elements not only includes those elements, but also includes other elements not specified, or includes elements inherent to such process, method, article, or device. Unless otherwise specified, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0066] The above are merely specific embodiments of the present disclosure, so that those skilled in the art can understand or realize the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. [Explanation of symbols]

[0067] 1…Inner lid 11…Recess 2. Coil module 21…Coil disc 22...Temperature controller 23...AC coil 3…Heat insulation lid plate 31...Boss 32...Open hole 4...Steam valve 5…Heat insulation seat plate 6...Magnetic shield plate 7…Seal ring 8…Sealing ring 9...Sealing ring 10…Seal cover

Claims

1. An inner lid having a recess on one surface; a steam valve disposed at least partially within the recess; a coil module provided on the other surface of the inner lid, the coil module being provided with a temperature controller, the temperature controller being installed away from a center side of the coil module and adjacent to the steam valve; The temperature controller measures the temperature of the steam in the pot flowing to the steam valve. A lid body characterized by:

2. The lid body described in claim 1, further comprising an insulated cover plate, the insulated cover plate being provided on a side of the inner lid away from the coil module, and the temperature measuring end of the temperature controller extending between the insulated cover plate and the inner lid through the inner lid.

3. A lid body as described in claim 2, characterized in that a boss is formed on the side of the heat-insulating cover plate away from the inner lid, a groove suitable for corresponding to the boss is formed on the side of the heat-insulating cover plate toward the inner lid, and the temperature measuring end of the temperature controller is positioned within the groove.

4. 4. The lid body according to claim 3, wherein an opening is provided on a side surface of the boss away from the inner lid, and the temperature controller is provided corresponding to the opening.

5. The cover body according to claim 4 , wherein an orthogonal projection of the temperature measuring end of the temperature controller on the heat-retaining cover plate covers at least a part of the opening.

6. 5. The cover according to claim 4, wherein a temperature measuring end of the temperature controller abuts against the boss.

7. The lid body described in claim 3, characterized in that the coil module includes a coil disk, an AC coil is wound around the coil disk, the AC coil is arranged on the outer periphery of the temperature controller, and at least a portion of the orthogonal projection of the AC coil on the heat-insulating cover plate is within the groove.

8. 8. The lid according to claim 7, wherein an orthogonal projection area of ​​the AC coil on a side surface of the groove facing the inner lid is equal to or larger than ¼ of an area of ​​a side surface of the groove facing the inner lid.

9. The cover body according to claim 7, wherein the recessed groove is disposed within a region surrounded by an edge of the orthogonal projection of the AC coil on the heat-retaining cover plate.

10. The cover body according to claim 7 , wherein the AC coil has an elliptical structure, and the inner cover is provided with the steam valve on a minor axis side of the elliptical structure.

11. 2. The cover body according to claim 1, wherein the inner cover has an opening suitable for accommodating the coil module, and a heat-retaining seat plate is provided in the opening.

12. The cover according to claim 11, wherein the heat-retaining seat plate has a through hole suitable for extending the temperature controller.

13. The cover body according to claim 2 , wherein the heat-insulating cover plate includes a conductive material.

14. A cooking utensil comprising the lid according to any one of claims 1 to 13.

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