Electromagnetic cooking utensil

Abstract

The utility model discloses an electromagnetic cooking utensil which comprises a base and an upper shell arranged on the base to bear a pot body, an electromagnetic heating assembly is arranged in the base, a weighing unit is further arranged at the bottom of the base, and the weighing unit is located outside the projection area of the electromagnetic heating assembly on the base. According to the invention, the influence of the electromagnetic heating assembly on the weighing unit in the operation process can be greatly reduced, and the weighing unit is prevented from being heated by a magnetic field to cause high-temperature failure and damage. Moreover, compared with the technical scheme that the weighing unit is arranged under the electromagnetic heating assembly, and the height difference between the weighing unit and the electromagnetic heating assembly is increased to prevent the weighing unit from being influenced by a magnetic field, the overall thickness of the electromagnetic cooking utensil can be reduced to a certain extent through the arrangement of the weighing unit, and the electromagnetic cooking utensil is more convenient to use. And the light and thin design of the electromagnetic cooking utensil is facilitated.

Description

Technical Field

[0001] The present application belongs to the technical field of kitchen appliances, and in particular relates to an electromagnetic cooking appliance. Background Art

[0002] In actual use, induction cookers are often used to heat food for a long time, such as for cooking hot pot. During the cooking process, the weight of the food will change frequently due to evaporation of water, users taking food, adding new food or soup, so during this process, users need to constantly adjust the power of the induction cooker to adapt to the change in the amount of food, which greatly reduces the user experience.

[0003] In order to solve this technical problem, some induction cookers have appeared in the prior art that can adjust the power according to the weight of the ingredients. By setting a weighing sensor on the bottom plate of the induction cooker, the evaporation condition and / or the weight condition of the pot body are identified according to the output signal of the weighing sensor, and then the boiling condition of the hot pot and / or the remaining condition of the ingredients are known, so as to automatically adjust the heating power.

[0004] In a specific induction cooker product, it includes a panel and a bottom plate located below the panel. The panel and the bottom plate cooperate to form a cavity. A control unit, an electromagnetic heating unit and a weighing unit are arranged in the cavity. A support body is provided between the panel and the bottom plate. The support body supports the entire panel on the bottom plate. The upper surface of the panel is used to place heating dishes or pots. The weighing unit is arranged on the bottom plate and is located directly below the electromagnetic heating unit. When the weight of the heating dishes or pots placed on the panel changes, the panel will produce a slight displacement in the up and down directions. The slight displacement is transmitted from the support body to the bottom plate, thereby causing a corresponding change in the pressure of the weighing unit arranged on the bottom plate. The weighing unit transmits the generated pressure signal to the control unit to perform corresponding power adjustment.

[0005] According to the principle of electromagnetic induction, the current change in the electromagnetic coil will generate a magnetic field in the surrounding space. If there is a magnetic medium such as ferromagnetism within the magnetic field, high-frequency eddy currents will be generated in it. The material of the strain beam in the existing weighing unit is usually a metal magnetic material. When the weighing unit is set below the electromagnetic heating unit and the distance is not properly controlled, it is easy for the weighing unit to be located within the magnetic field of the electromagnetic heating unit. When the electromagnetic heating unit is running, the strain beam in the weighing unit is heated at the same time, resulting in failure of the weighing unit detection and the inability to automatically adjust the heating power, which makes it impossible to achieve automatic control of the cooking process. Utility Model Content

[0006] The present application provides an electromagnetic cooking appliance to solve the technical problem that during the operation of the electromagnetic cooking appliance, the magnetic field generated by the electromagnetic coil being energized acts on the weighing unit, causing the weighing unit to be heated and damaged.

[0007] The technical solution adopted in this application is:

[0008] An electromagnetic cooking appliance comprises a base and an upper shell arranged on the base to carry a pot body, wherein an electromagnetic heating component is arranged inside the base, and a weighing unit is also arranged at the bottom of the base, and the weighing unit is located outside the projection area of ​​the electromagnetic heating component on the base.

[0009] The electromagnetic cooking appliance in this application also includes the following additional technical features:

[0010] The electromagnetic heating assembly comprises a wire drum frame, an electromagnetic coil wound on the wire drum frame, and a plurality of magnetic conductive strips radially distributed on the wire drum frame. The magnetic conductive strips and the weighing unit are staggered along the circumferential direction of the wire drum frame.

[0011] The height difference between the weighing unit and the electromagnetic heating component is H, and H satisfies: H≧10mm.

[0012] The base is provided with an installation position for installing the weighing unit, and the shortest distance between the installation position in the projection area of ​​the base and the projection area of ​​the electromagnetic heating component on the base is L, and L satisfies: L≧20mm.

[0013] A plurality of weighing units are provided at intervals on the bottom of the base along the circumference of the base.

[0014] The base is provided with an installation groove adapted to the weighing unit, and the weighing unit is detachably installed in the installation groove.

[0015] An upper boss and a lower boss are arranged in the installation groove, and the weighing unit comprises a positioning frame, and the positioning frame is clamped between the upper boss and the lower boss.

[0016] The installation groove is provided with an introduction slope adjacent to the lower boss, and the positioning frame is installed into the installation groove from bottom to top along the introduction slope.

[0017] The weighing unit includes a pressure sensor, a weighing bracket and a supporting foot pad. The pressure sensor includes a positioning frame and a strain beam connected to the positioning frame. The strain beam is fixedly connected to the weighing bracket. The supporting foot pad is arranged at the lower part of the weighing bracket and can be deformed with the base to push the weighing bracket upward.

[0018] The strain beam comprises a main body connected to the positioning frame, and cantilever beams respectively connected to the main body and located at two sides of the main body, and the cantilever beams are fixedly connected to the weighing bracket.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0020] 1. The weighing unit in the present application is located outside the projection area of ​​the electromagnetic heating component on the base, thereby greatly reducing the impact of the electromagnetic heating component on the weighing unit during operation, and preventing the weighing unit from being heated by the magnetic field and causing high-temperature failure and damage. Moreover, compared with the technical solution of placing the weighing unit directly below the electromagnetic heating component and increasing the height difference between the weighing unit and the electromagnetic heating component to protect the weighing unit from the influence of the magnetic field, the arrangement of the weighing unit in the present application can reduce the overall thickness of the electromagnetic cooking appliance to a certain extent, which is conducive to the lightweight design of the electromagnetic cooking appliance.

[0021] In addition, arranging the weighing unit outside the projection area of ​​the electromagnetic heating component on the base can make the weighing unit closer to the connection position between the base and the upper shell, so that the weighing unit can sense the weight changes of the pot body carried by the upper shell more timely, improve the timeliness of detection, and then improve the response speed.

[0022] 2. As a preferred embodiment of the present application, the magnetic strips in the electromagnetic heating assembly and the weighing unit are staggered along the circumferential direction of the wire disc frame, thereby reducing the influence of the strong magnetic field on one side of the magnetic strip on the weighing unit and improving the protection effect of the weighing unit.

[0023] 3. As a preferred embodiment of the present application, the height difference between the weighing unit and the electromagnetic heating assembly is H, and H satisfies: H≧10mm. Such an arrangement can make the weighing unit avoid the area with a strong magnetic field of the electromagnetic heating assembly, so that it is in a weak magnetic area, which greatly reduces the influence of the magnetic field generated by the electromagnetic heating assembly on the weighing unit and prolongs the service life of the weighing unit.

[0024] 4. As a preferred embodiment of the present application, a plurality of weighing units are provided at intervals along the circumference of the bottom of the base. On the one hand, it can avoid inaccurate detection results caused by local force, and on the other hand, it can avoid the phenomenon of being unable to measure caused by the failure of some weighing units.

[0025] 5. As a preferred embodiment of the present application, the base is provided with a mounting groove adapted to the weighing unit, and the weighing unit is detachably mounted in the mounting groove. The arrangement of the mounting groove can realize the sunken arrangement of the weighing unit, so that the height difference between the weighing unit and the electromagnetic heating component can be increased by using the thickness of the base itself, which is conducive to the overall light and thin design of the electromagnetic cooking appliance. The weighing unit is detachably mounted in the mounting groove, which is convenient for disassembly and replacement of the weighing unit to reduce repair and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 This is an exploded view of a partial structure of an electromagnetic cooking appliance in one embodiment of the present application;

[0028] Figure 2 A partial top view of a structure of an electromagnetic cooking device according to an embodiment of the present application;

[0029] Figure 3 This is an exploded view of a weighing unit in one embodiment of the present application;

[0030] Figure 4 A cross-sectional view of a partial structure of an electromagnetic cooking utensil in one embodiment of the present application;

[0031] Figure 5 for Figure 4 Enlarged view of part A.

[0032] in,

[0033] 1. Base; 11. Connecting column; 12. Mounting groove; 13. Upper boss; 14. Lower boss; 141. Lead-in slope;

[0034] 2. Electromagnetic heating assembly; 21. Wire drum rack; 22. Electromagnetic coil; 23. Magnetic conductive strip;

[0035] 3. Weighing unit; 31. Positioning frame; 32. Main body; 33. Cantilever beam; 331. Third positioning hole; 34. Weighing bracket; 341. Fourth positioning hole; 35. Screw; 36. Support foot pad; 361. Support column; 362. Support foot; 37. Gap. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0038] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0041] like Figure 1 and Figure 2 As shown, an electromagnetic cooking appliance includes a base 1 and an upper shell arranged on the base 1 to support a pot body, an electromagnetic heating component 2 is arranged in the base 1, and a weighing unit 3 is also arranged at the bottom of the base 1, and the weighing unit 3 is located outside the projection area of ​​the electromagnetic heating component 2 on the base 1.

[0042] The electromagnetic cooking appliances in this application include but are not limited to ordinary induction cookers, IH electric hot pots, etc.

[0043] In a specific embodiment, the upper shell includes a cover plate mounted on the base 1, and a flange portion fixedly connected to the cover plate and extending upward, and the pot body placed on the upper shell is limited by the flange portion to ensure stable support of the pot body during cooking and prevent the pot body from shifting. In another specific embodiment, the upper shell is similar to the shape of a rice cooker body.

[0044] A control unit is also provided in the base 1 of the present application, and the weighing unit 3 is electrically connected to the control unit. The control unit can adjust the cooking power and / or heating time of the electromagnetic cooking appliance according to the detection signal transmitted by the weighing unit 3, so as to realize automatic adjustment of the cooking process, reduce or even eliminate the number of times of human participation in the adjustment of cooking power and heating time during the cooking process, and improve the user experience.

[0045] The weighing unit 3 in the present application is located outside the projection area of ​​the electromagnetic heating component 2 on the base 1, so that the influence of the electromagnetic heating component 2 on the weighing unit 3 during operation can be greatly reduced, and the weighing unit 3 can be prevented from being heated by the magnetic field and causing high-temperature failure and damage. Moreover, compared with the technical solution of arranging the weighing unit 3 directly below the electromagnetic heating component 2 and increasing the height difference between the weighing unit 3 and the electromagnetic heating component 2 to protect the weighing unit 3 from the influence of the magnetic field, the arrangement of the weighing unit 3 in the present application can reduce the overall thickness of the electromagnetic cooking appliance to a certain extent, which is conducive to the lightweight design of the electromagnetic cooking appliance.

[0046] In addition, arranging the weighing unit 3 outside the projection area of ​​the electromagnetic heating component 2 on the base 1 can make the weighing unit 3 closer to the connection position between the base 1 and the upper shell, so that the weighing unit 3 can sense the weight change of the pot body carried by the upper shell more timely, improve the timeliness of the detection, and then improve the response speed.

[0047] like Figure 1 and Figure 2 As shown, the electromagnetic heating assembly 2 in the present application includes a wire drum frame 21 and an electromagnetic coil 22 wound on the wire drum frame 21. As a preferred embodiment of the present application, the electromagnetic heating assembly 2 also includes a plurality of magnetic strips 23 radially distributed on the wire drum frame 21, and the magnetic strips 23 and the weighing unit 3 are staggered along the circumferential direction of the wire drum frame 21, thereby reducing the influence of the strong magnetic field on one side of the magnetic strips 23 on the weighing unit 3, and improving the protection effect of the weighing unit 3.

[0048] Furthermore, if Figure 2 As shown, the extension line of the magnetic strip 23 along the radial direction of the wire drum frame 21 does not pass through the weighing unit 3, so as to further reduce the influence of the strong magnetic field of the magnetic strip 23 on the weighing unit 3.

[0049] The height difference between the weighing unit 3 and the electromagnetic heating component 2 is H. The height H is the difference between the height of the weighing unit 3 at the bottom of the base 1 and the height of the electromagnetic heating component 2 in the base 1. As a preferred embodiment of the present application, H satisfies: H≧10mm. With such an arrangement, the weighing unit 3 can avoid the area with a strong magnetic field in the vertical direction of the electromagnetic heating component 2, so that it is in the weak magnetic area in the vertical direction, which greatly reduces the influence of the magnetic field generated by the electromagnetic heating component 2 on the weighing unit 3 and prolongs the service life of the weighing unit 3.

[0050] The base 1 is provided with a mounting position for mounting the weighing unit 3, and the shortest distance between the projection area of ​​the mounting position on the base 1 and the projection area of ​​the electromagnetic heating component 2 on the base 1 is L. As a preferred embodiment of the present application, L satisfies: L≧20mm. With such an arrangement, the weighing unit 3 can avoid the area with a strong magnetic field in the horizontal direction of the electromagnetic heating component 2, so that it is in the weak magnetic field area in the horizontal direction, thereby reducing the influence of the magnetic field generated during the operation of the electromagnetic heating component 2 on the weighing unit 3, so that the weighing unit 3 will not fail or be damaged by high temperature due to electromagnetic heating.

[0051] As a preferred implementation of the present application, Figure 1 As shown, a plurality of weighing units 3 are arranged at intervals along the circumference of the base 1 at the bottom of the base 1. On the one hand, it can avoid the inaccurate detection result caused by local force, and on the other hand, it can avoid the phenomenon of being unable to measure caused by the failure of some weighing units 3.

[0052] Taking the base 1 having a substantially rectangular cross-section as an example, preferably, a weighing unit 3 is respectively arranged at the four corners or near the four corners of the bottom of the base 1, and the base 1 is connected to the upper shell through connecting columns 11 arranged at the four corners or adjacent to the four corners. Because the weighing unit 3 is close to the connecting column 11, the weighing unit 3 can timely sense the force transmitted from the upper shell to the base 1, thereby improving the response speed.

[0053] The specific configuration of the weighing unit 3 in the present application may adopt any one of the following embodiments:

[0054] Embodiment 1: The base 1 is provided with an installation position for installing the weighing unit 3, and the installation position extends and protrudes toward the inside of the base 1, so that the weighing unit 3 is arranged protrudingly. In order to rationalize the height distance between the weighing unit 3 and the electromagnetic heating component 2, the installation position of the electromagnetic heating component 2 needs to be further raised.

[0055] Implementation method 2: Figure 1 , Figure 4 and Figure 5As shown, the base 1 is provided with a mounting groove 12 adapted to the weighing unit 3, and the weighing unit 3 is detachably mounted in the mounting groove 12. The arrangement of the mounting groove 12 can realize the sunken arrangement of the weighing unit 3, so that the height difference between the weighing unit 3 and the electromagnetic heating component 2 can be increased by using the thickness of the base 1 itself, which is conducive to the overall light and thin design of the electromagnetic cooking appliance. The weighing unit 3 is detachably mounted in the mounting groove 12, which is convenient for disassembly and replacement of the weighing unit 3 to reduce the repair and maintenance costs.

[0056] In the second embodiment, the connection between the weighing unit 3 and the base 1 can be any one of the following embodiments:

[0057] Embodiment 1: The weighing unit 3 includes a positioning frame 31, a positioning rib is protruding in the mounting groove 12, the positioning rib is provided with a first positioning hole, the positioning frame 31 is provided with a second positioning hole, and the positioning frame 31 is detachably connected to the positioning rib by fasteners (such as screws) passing through the first positioning hole and the second positioning hole.

[0058] Embodiment 2: The weighing unit 3 comprises a positioning frame 31, one of the positioning frame 31 and the inner wall of the mounting slot 12 is provided with a latch tongue, and the other is provided with a buckle position adapted to the latch tongue, and the positioning frame 31 is detachably connected to the base 1 via the latch tongue and the buckle position.

[0059] Example 3: Figure 4 and Figure 5 As shown, an upper boss 13 and a lower boss 14 are provided in the mounting groove 12, and the weighing unit 3 includes a positioning frame 31, which is clamped between the upper boss 13 and the lower boss 14. When the weight of the pot body carried by the upper shell changes, the upper shell will produce a small displacement in the up and down direction, and the small displacement is transmitted to the base 1 through the connecting column 11, and then transmitted to the upper boss 13 and the lower boss 14, so that the positioning frame 31 clamped between the upper boss 13 and the lower boss 14 moves downward relative to other structures of the weighing unit 3 under the action of gravity, so that the pressure of the weighing unit 3 changes accordingly, and the weighing unit 3 transmits the generated detection signal to the control unit, so that the control unit adjusts the corresponding heating power and / or heating time.

[0060] As a preferred example of this embodiment 2, Figure 5 As shown, the installation groove 12 is provided with an introduction slope 141 adjacent to the lower boss 14, and the positioning frame 31 is installed into the installation groove 12 from bottom to top along the introduction slope 141. The existence of the introduction slope 141 can guide the installation process of the positioning frame 31, facilitate the installation of the positioning frame 31, and improve the assembly efficiency.

[0061] like Figures 3 to 5As shown, the weighing unit 3 includes a pressure sensor, a weighing bracket 34 and a supporting foot pad 36. The pressure sensor includes a positioning frame 31 and a strain beam connected to the positioning frame 31. The strain beam is fixedly connected to the weighing bracket 34. The supporting foot pad 36 is arranged at the lower part of the weighing bracket 34 and can be deformed with the base 1 to push the weighing bracket 34 upward.

[0062] In a specific example, Figures 3 to 5 As shown, the strain beam is located inside the positioning frame 31, the weighing bracket 34 is located below the pressure sensor, the weighing sensor is provided with a mounting hole for installing a supporting foot pad 36, the supporting foot pad 36 has a supporting column 361 which is interference fit with the mounting hole and a supporting foot 362 connected to the supporting column 361. Such an arrangement can make the structure of the weighing unit 3 compact and make the installation space occupied by the weighing unit 3 smaller, so that the weighing unit 3 and the electromagnetic heating component 2 can be reasonably arranged within the limited space of the base 1.

[0063] As a preference, Figure 5 As shown, the mounting groove 12 is a through groove, that is, the mounting groove 12 passes through the base 1, so that the support leg 362 of the support pad 36 can contact the tabletop for supporting the electromagnetic cooking device. The support pad 36 is a structure made of elastic materials such as silicone or rubber. When the weight of the pot body supported by the upper shell changes, the upper shell will produce a small displacement in the up and down directions. The small displacement is transmitted to the base 1 through the connecting column 11, and is transmitted to the positioning frame 31 and the support pad 36 through the base 1. The positioning frame 31 moves downward relative to the strain beam, and the support pad 36 is subjected to the reaction force of the tabletop to push the weighing bracket 34 upward, so that the weighing bracket 34 moves upward relative to the strain beam. Under the two-way clamping, the strain beam is deformed, so that its resistance value changes. By measuring the change in resistance value, it can be converted into a corresponding strain value and transmitted to the control unit.

[0064] The strain beam includes a main body 32 connected to the positioning frame 31, and a cantilever beam 33 fixedly connected to the main body 32. The cantilever beam 33 is fixedly connected to the weighing bracket 34, and there is a gap 37 between the cantilever beam 33 and the positioning frame 31. Preferably, the cantilever beam 33 is provided with a third positioning hole 331, and the weighing bracket 34 is provided with a fourth positioning hole 341. The cantilever beam 33 is detachably connected to the weighing bracket 34 by fasteners (such as screws 35) penetrating the third positioning hole 331 and the fourth positioning hole 341.

[0065] like Figure 3 As shown, in a preferred embodiment, there are two cantilever beams 33, which are respectively located on both sides of the main body 32. By providing two cantilever beams 33, the overall force can be more uniform, avoiding damage due to stress concentration.

[0066] Furthermore, if Figure 3As shown, the main body 32 includes a transverse extension section and a longitudinal extension section, two cantilever beams 33 are respectively connected to the transverse extension section, and the two cantilever beams 33 are arranged in parallel, and the longitudinal extension section is connected to the positioning frame 31, so that the strain beam is in a mountain shape as a whole. Of course, the structural shape of the strain beam in the present application is not limited to this, and can also be V-shaped, U-shaped, etc.

[0067] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0068] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0069] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electromagnetic cooking appliance, comprising a base and an upper shell arranged on the base to carry a pot body, wherein an electromagnetic heating component is arranged in the base, characterized in that: A weighing unit is also provided at the bottom of the base, and the weighing unit is located outside the projection area of ​​the electromagnetic heating component on the base.

2. The electromagnetic cooking device according to claim 1, characterized in that: The electromagnetic heating assembly comprises a wire drum frame, an electromagnetic coil wound on the wire drum frame, and a plurality of magnetic conductive strips radially distributed on the wire drum frame. The magnetic conductive strips and the weighing unit are staggered along the circumferential direction of the wire drum frame.

3. The electromagnetic cooking device according to claim 1, characterized in that: The height difference between the weighing unit and the electromagnetic heating component is H, and H satisfies: H≧10mm.

4. The electromagnetic cooking device according to claim 1, characterized in that: The base is provided with an installation position for installing the weighing unit, and the shortest distance between the installation position in the projection area of ​​the base and the projection area of ​​the electromagnetic heating component on the base is L, and L satisfies: L≧20mm.

5. The electromagnetic cooking device according to claim 1, characterized in that: A plurality of weighing units are provided at intervals on the bottom of the base along the circumference of the base.

6. An electromagnetic cooking device according to any one of claims 1 to 5, characterized in that: The base is provided with an installation groove adapted to the weighing unit, and the weighing unit is detachably installed in the installation groove.

7. The electromagnetic cooking device according to claim 6, characterized in that: An upper boss and a lower boss are arranged in the installation groove, and the weighing unit comprises a positioning frame, and the positioning frame is clamped between the upper boss and the lower boss.

8. The electromagnetic cooking device according to claim 7, characterized in that: The installation groove is provided with an introduction slope adjacent to the lower boss, and the positioning frame is installed into the installation groove from bottom to top along the introduction slope.

9. An electromagnetic cooking device according to any one of claims 1 to 5, characterized in that: The weighing unit includes a pressure sensor, a weighing bracket and a supporting foot pad. The pressure sensor includes a positioning frame and a strain beam connected to the positioning frame. The strain beam is fixedly connected to the weighing bracket. The supporting foot pad is arranged at the lower part of the weighing bracket and can be deformed with the base to push the weighing bracket upward.

10. The electromagnetic cooking device according to claim 9, characterized in that: The strain beam comprises a main body connected to the positioning frame, and cantilever beams respectively connected to the main body and located at two sides of the main body, and the cantilever beams are fixedly connected to the weighing bracket.

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