Electromagnetic heating cooking utensil

Abstract

The utility model relates to the field of cooking electric appliances, in particular to an electromagnetic heating cooking utensil which comprises a base and a pot body, a first disc seat and a coil heating assembly installed on the first disc seat are arranged in the pot body, the first disc seat comprises a side portion and a bottom connected to the side portion, and a plurality of side portion installation grooves are formed in the outer surface of the side portion at intervals in the circumferential direction; the outer side surface of the side mounting groove is a first revolution surface; the coil heating assembly comprises a side coil heating unit installed in the side installation groove, the side coil heating unit comprises a second disc base and a side coil, a first winding column is arranged on the surface of one side of the second disc base, the side coil is wound on the surface of one side of the second disc base, and the second disc base is installed in the side installation groove. The surface of the other side of the second disc seat is a second rotation face which is attached to the first rotation face. According to the coil winding method, a specific winding machine is not needed for winding, coil winding can be achieved only through a conventional winding machine, and the winding process cost is reduced.

Description

Technical Field

[0001] This application relates to the field of cooking appliance technology, and in particular to an electromagnetic heating cooking appliance. Background Technology

[0002] Electromagnetic heating technology has been widely used in cooking appliances such as induction cookers, rice cookers, and pressure cookers. It uses electromagnetic induction coils and magnetic strips to generate electromagnetic eddy currents, which heat up the cookware and thus cook the food inside.

[0003] The prior art discloses a cooking appliance that has multiple coil heating units arranged on the mounting side of the plate base. Each coil heating unit is wound on a winding structure, so that a heating zone can be formed at each coil heating unit. Referring to the accompanying drawings, the coil heating unit extends from the bottom of the plate base to the side of the plate base. The coil heating unit is arranged in a curved shape to adapt to the bottom and side of the plate base, so that the coil heating unit can simultaneously cover the bottom, side and transition area of ​​the bottom and side of the plate base.

[0004] In the above structure, because the shape of the coil heating unit needs to be adapted to the bottom and sides of the base, the coil of the coil heating unit needs to be curved. This structure requires a specific winding machine to wind the curved coil. Conventional winding machines usually keep the winding head stationary, with the part to be wound fixed on a rotating shaft. The part to be wound rotates around the axis of the rotating shaft, and the coil on the winding head is wound onto the part to be wound. This conventional winding machine can only wind regular-shaped coils with the axis of rotation as the center of rotation, and cannot wind curved coils. Therefore, the coil in the above structure requires a more expensive special winding machine to wind, resulting in a higher winding process cost. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides an electromagnetic heating cooking appliance that solves the problem that the coils of existing coil heating units are bent, making conventional winding machines unusable and requiring specific winding machines, resulting in high winding process costs.

[0006] This application provides an electromagnetic heating cooking appliance, including a base and a pot body mounted on the base. The pot body is provided with a first plate seat and a coil heating assembly mounted on the first plate seat. The first plate seat includes a side portion and a bottom portion connected to the side portion. The outer surface of the side portion is provided with a plurality of side mounting grooves spaced apart along the circumference. The outer surface of the side mounting groove is a first rotating surface.

[0007] The coil heating assembly includes a side coil heating unit installed in the side mounting groove. The side coil heating unit includes a second plate and a side coil. The side coil is wound on one side surface of the second plate. The second plate is installed in the side mounting groove, and the other side surface of the second plate is a second rotating surface, which is in contact with the first rotating surface.

[0008] The other side surface of the second plate of the side coil heating unit of this application is a second rotating surface with a second rotating axis. The second plate can be installed on the rotating shaft of a conventional winding machine and rotate with the rotating shaft around its own axis, thereby winding the coil on the winding head onto the second plate. The coil on the second plate has a conventional regular structure rather than a curved structure, so there is no need for a specific winding machine to wind the coil. The winding of the coil can be achieved by a conventional winding machine, thereby reducing the cost of the winding machine and the winding process cost.

[0009] In addition, the outer surface of the side mounting groove of the first plate base in this application is a first rotating surface, and the second rotating surface is attached to the first rotating surface, which makes the distance between the side coil heating unit and the inner pot of the electromagnetic heating cooking appliance consistent, so that the heating effect is more uniform.

[0010] As a preferred technical solution, the first rotating surface has a first rotating axis, the second rotating surface has a second rotating axis, and the second rotating axis coincides with the second rotating axis.

[0011] As a preferred technical solution, the side mounting groove is concave, the first rotating surface is concave from the inner side of the first disc base to the outer side, and the second rotating surface is concave from the outer side of the second disc base to the side coil side.

[0012] As a preferred technical solution, the projection of the second disk on the first plane is circular, the second rotating surface has a second rotation axis, and the first plane is perpendicular to the second rotation axis.

[0013] By ensuring that the projection of the second plate onto the first plane is circular, conventional winding machines can ensure that the side coils are wound onto the second plate.

[0014] As a preferred technical solution, the second plate is interference-fitted into the side mounting groove.

[0015] As a preferred technical solution, the outer surface of the side is a third rotation surface, the third rotation surface has a third rotation axis, the first rotation surface has a first rotation axis, and the first rotation axis intersects with the third rotation axis.

[0016] As a preferred technical solution, a first winding post is provided on one side surface of the second disk base, the side coil is arranged around the first winding post, and the side coil is arranged in at least two layers along the extension direction of the first winding post.

[0017] As a preferred technical solution, the side coil heating unit further includes a first magnetic support and a first magnetic element mounted on the first magnetic support. The first magnetic support is fixedly mounted on the side of the second plate where the side coil is located, and the first magnetic element extends radially along the side coil.

[0018] As a preferred technical solution, the bottom is provided with a bottom mounting groove, and the coil heating assembly further includes a bottom coil heating unit installed in the bottom mounting groove. The bottom coil heating unit includes a bottom bracket and a bottom coil, and the bottom coil is wound on the bottom bracket.

[0019] As a preferred technical solution, the bottom coil heating unit includes a second magnetic support and a second magnetic element mounted on the second magnetic support. The second magnetic element extends radially along the bottom coil. The second magnetic support is mounted on the bottom support, and the edge of the second magnetic support is pressed against the edge of the second plate. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the electromagnetic heating cooking appliance described in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the assembly structure of the coil heating assembly and the first plate base of the electromagnetic heating cooking appliance described in this application embodiment;

[0024] Figure 3 This is an exploded view of the assembly structure of the coil heating component and the first plate base of the electromagnetic heating cooking appliance described in this application embodiment;

[0025] Figure 4 This is a top view of the assembly structure of the coil heating assembly and the first plate base of the electromagnetic heating cooking appliance described in the embodiment of this application;

[0026] Figure 5 This is a cross-sectional view of the assembly structure of the coil heating assembly and the first plate base of the electromagnetic heating cooking appliance described in this application embodiment;

[0027] Figure 6 This is a schematic diagram of the side coil heating unit described in the embodiment of this application;

[0028] Figure 7 This is a cross-sectional view of the side coil heating unit described in an embodiment of this application.

[0029] in:

[0030] 100. Base;

[0031] 200. Boiler body; 1. First plate base; 11. Side; 111. Third rotating surface; 112. Side mounting groove; 1121. First rotating surface; 113. Mounting part; 2. Coil heating assembly; 21. Side coil heating unit; 211. Second plate base; 2111. First winding post; 2112. Second rotating surface; 2113. Snap-fit ​​component; 212. Side coil; 213. First magnetic support; 2131. Mounting arm; 2132. Connecting part; 214. First magnetic component; 22. Bottom coil heating unit; 221. Bottom support; 222. Bottom coil; 223. Second magnetic support; 224. Second magnetic component;

[0032] 300. Top cover. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0035] A prior art cooking appliance has a coil heating unit that is curved to fit the bottom and sides of a plate base, allowing the coil heating unit to simultaneously cover the bottom, sides, and transition areas of the plate base. This design necessitates the use of a specific winding machine to wind the curved coil, resulting in higher costs for the specific winding machine and the winding process itself.

[0036] Based on the above problems, this application provides an electromagnetic heating cooking appliance, which can be an electromagnetic heating rice cooker, a stir-fry machine, or an induction cooker, or other electromagnetically heated appliances. Figure 1 Taking the electromagnetic heating cooking appliance shown as an example, the electromagnetic heating cooking appliance includes a base 100, a pot body 200 mounted on the base 100, and an upper cover 300 fastened to the pot body 200. The pot body 200 contains an inner pot for placing food, and the outer layer of the inner pot is provided with a first tray 1 and a coil heating assembly 2. Figure 2 As shown in the figure, the magnetic field generated by the coil heating component 2 acts on the inner pot to heat the inner pot, thereby cooking the food inside the inner pot.

[0037] Figure 2 This is a schematic diagram of the assembly structure of the coil heating assembly 2 and the first plate base 1 of the electromagnetic heating cooking appliance according to an embodiment of this application; Figure 3 This is an exploded structural diagram of the coil heating assembly 2 and the first plate base 1 of the electromagnetic heating cooking appliance according to an embodiment of this application; Figure 4 This is a top view of the assembly structure of the coil heating assembly 2 and the first plate base 1 of the electromagnetic heating cooking appliance according to an embodiment of this application; Figure 5 This is a cross-sectional view of the assembly structure of the coil heating assembly 2 and the first plate base 1 of the electromagnetic heating cooking appliance according to an embodiment of this application. Figures 2-5 As shown, the electromagnetic heating cooking appliance includes a first plate base 1 and a coil heating assembly 2. The first plate base 1 includes a side portion 11 and a bottom portion, wherein the side portion 11 is connected to the bottom portion, and the two are preferably integrally formed. In this embodiment, the outer surface of the side portion 11 of the first plate base 1 is a third rotation surface 111, which has a third rotation axis. Specifically, the third rotation surface 111 refers to a surface formed by rotating around the third rotation axis. In this embodiment, the third rotation surface 111 is preferably a spherical surface. The coil heating assembly 2 includes a side coil heating unit 21 and a bottom coil heating unit 22, wherein multiple side coil heating units 21 are provided and are evenly distributed on the side portion 11 of the first plate base 1, and the bottom coil heating unit 22 is installed on the bottom of the first plate base 1. This structure creates magnetic fields on both the sides and bottom of the first tray 1, which allows the inner liner inside the first tray 1 to be heated in a wider range. Furthermore, when the side coil heating unit 21 and the bottom coil heating unit 22 are working, they will form a 3D convection magnetic field, resulting in better and more uniform heating, lower energy consumption, and better processing of food.

[0038] In this embodiment, as Figure 3As shown, a plurality of side mounting grooves 112 are provided circumferentially at intervals on the outer surface of the side portion 11. These side mounting grooves 112 are used to mount the aforementioned side coil heating unit 21. The outer surface of the side mounting groove 112 is a first rotation surface 1121, which has a first rotation axis and is preferably a spherical surface. It should be noted that the first rotation axis of the first rotation surface 1121 intersects with the third rotation axis of the third rotation surface 111. That is, the curvature of the first rotation surface 1121 is different from that of the third rotation surface 111.

[0039] Preferably, there are an even number of side mounting slots 112, which are evenly distributed circumferentially on the outer surface of the side portion 11. Since there are an even number of side mounting slots 112, there are also an even number of corresponding side coil heating units 21, which facilitates the alternating control of the even number of side coil heating units 21. For example, two opposite side coil heating units 21 can be controlled to generate a magnetic field simultaneously, and then another two side coil heating units 21 can be controlled to generate a magnetic field. The independent control of multiple sets of oppositely arranged side coil heating units 21 is beneficial to improving the cooking effect of the food, resulting in a richer and more flavorful taste.

[0040] Figure 6 This is a schematic diagram of the side coil heating unit 21 according to an embodiment of this application. Figure 7 This is a cross-sectional view of the side coil heating unit 21 according to an embodiment of this application. Figure 6 and Figure 7 As shown, the side coil heating unit 21 includes a second plate seat 211 and a side coil 212. The second plate seat 211 is installed in the side mounting groove 112, and the side coil 212 is wound around one side surface of the second plate seat 211. The other side surface of the second plate seat 211 (i.e., the surface not in contact with the side coil 212) is preferably a second rotation surface 2112, which has a second rotation axis. By fitting the second plate seat 211 onto the rotating shaft of a conventional winding machine (at this time, the second rotation axis coincides with the axis of the rotating shaft), the side coil 212 is installed on the winding head of the winding machine. The winding machine, through the rotation of the rotating shaft, can drive the second plate seat 211 to rotate around its second rotation axis, thereby winding the side coil 212 around one side surface of the second plate seat 211. Understandably, the side coil 212 at this time presents a conventional spiral winding structure on the second plate 211, and due to the second rotating surface 2112 of the second plate 211, the side coil 212 as a whole also has a spherical structure. Therefore, the winding of the side coil 212 of this application can be achieved with just a conventional winding machine, without the need for a specific winding machine, effectively reducing the procurement cost of the winding machine and the overall winding process cost.

[0041] For reference Figure 7Preferably, a first winding post 2111 can be provided on one side surface of the second disk base 211, and the first winding post 2111 is preferably located at the center of the second disk base 211. The aforementioned side coil 212 is arranged around the first winding post 2111, and the side coil 212 is attached to one side surface of the second disk base 211. That is to say, in this embodiment, when the side coil 212 is wound, the side coil 212 is wound around the first winding post 2111, and the axis of the side coil 212 coincides with the axis of the first winding post 2111. In this embodiment, the side coil 212 is provided with at least two layers along the extension direction of the first winding post 2111. It can be understood that, thanks to the fact that this application can use a conventional winding machine, it is possible to easily realize the winding of the upper and lower layers of side coil 212, and the structure of the two layers of side coil 212 makes the heating coverage of the side coil 212 wider and the heating effect better.

[0042] In this embodiment, preferably, the second rotating surface 2112 of the second tray base 211 is fitted to the first rotating surface 1121 of the side mounting groove 112. That is, firstly, the second tray base 211 is installed in the side mounting groove 112, and its positioning is achieved directly through the side mounting groove 112. Secondly, the fit between the second rotating surface 2112 and the first rotating surface 1121 also makes the distance between the side coil heating unit 21 and the inner pot of the electromagnetic heating cooking appliance consistent, resulting in a more uniform heating effect. Preferably, the second tray base 211 is installed in the side mounting groove 112 with an interference fit.

[0043] In this embodiment, the first rotation axis of the first rotation surface 1121 coincides with the second rotation axis of the second rotation surface 2112 to ensure that the second rotation surface 2112 of the second plate seat 211 is in a fitted state with the first rotation surface 1121 of the side mounting groove 112.

[0044] Furthermore, the projection of the second plate 211 onto the first plane is circular, and the second axis of rotation of the second rotating surface 2112 is perpendicular to the first plane. This structure ensures that the outer surface of the second plate 211 is spherical, which allows a conventional winding machine to wind the side coil 212 onto the second plate 211.

[0045] In one embodiment, the side mounting groove 112 of this embodiment is concave, specifically formed by recessing from the inside to the outside of the first disc base 1. That is, the first rotating surface 1121 is a spherical surface formed by recessing from the inside to the outside of the first disc base 1. Correspondingly, the second rotating surface 2112 of the second disc base 211 is a spherical surface formed by recessing from the outside of the second disc base 211 towards the side where the side coil 212 is mounted.

[0046] In this embodiment, the side coil heating unit 21 further includes a first magnetic support 213 and a first magnetic element 214. The first magnetic support 213 is mounted on the second plate base 211. Specifically, as shown... Figure 6 and Figure 7 As shown, the first magnetic support 213 includes several mounting arms 2131 extending outward from the center (three are provided in this embodiment). The mounting arms 2131 are evenly distributed circumferentially, and the aforementioned first magnetic component 214 is mounted on the mounting arms 2131. A through hole is provided through the center of the first magnetic support 213. Correspondingly, a snap-fit ​​component 2113 is provided at the top of the first winding post 2111. The snap-fit ​​component 2113 passes through the through hole and snaps onto the top surface of the first magnetic support 213. Furthermore, a connecting portion 2132 is provided at the end of the mounting arm 2131 away from the through hole. Correspondingly, a mounting portion 113 is provided on the outer surface of the side portion 11 of the first disk base 1. The mounting portion 113 and the connecting portion 2132 are fixedly connected by fasteners. Figure 2 (As shown). Through the snap-fit ​​of the snap-fit ​​member 2113 with the top surface of the center of the first magnetic support 213 and the fixed connection between the mounting part 113 and the connecting part 2132, the first magnetic support 213 is fixedly installed on the second disk base 211, and the first magnetic support 213 can fix and press the side coil 212 on the second disk base 211.

[0047] The first magnetic element 214 extends radially along the side coil 212, and preferably has a strip-shaped structure, which can be a strip magnetic strip. The first magnetic element 214 is mounted on the mounting arm 2131 of the first magnetic support 213, and can generate electromagnetic induction with the side coil 212, thereby achieving heating of the inner liner.

[0048] In this embodiment, it can be referred to Figures 1-3 A bottom mounting groove is provided at the bottom of the first plate seat 1. The above-mentioned multiple side mounting grooves 112 are arranged around the bottom mounting groove in space. The bottom coil heating unit 22 is installed in the bottom mounting groove to generate a magnetic field at the bottom of the first plate seat 1 and realize direct heating of the bottom of the inner liner.

[0049] The aforementioned bottom coil heating unit 22 includes a bottom support 221, a bottom coil 222, a second magnetic support 223, and a second magnetic element 224. The bottom coil 222 is wound on the bottom support 221. Optionally, a second winding post can be provided on the bottom support 221, and the bottom coil 222 is wound around the second winding post. The bottom coil 222 can be wound using a conventional winding machine. The aforementioned second magnetic support 223 is installed on the bottom support 221, and the edge of the second magnetic support 223 is pressed against the edge of the second disc base 211, thereby limiting and fixing the second disc base 211 through the second magnetic support 223.

[0050] The second magnetic element 224 extends radially along the bottom coil 222, and preferably has a strip-shaped structure. Through the interaction between the second magnetic element 224 and the bottom coil 222, a magnetic field is generated at the bottom of the first plate base 1, thereby achieving direct heating of the bottom of the inner liner.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electromagnetic heating cooking appliance comprising a base and a pot body mounted on the base, a first disc seat and a coil heating assembly mounted on the first disc seat are arranged in the pot body, the first disc seat comprises a side portion and a bottom portion connected to the side portion, characterized in that, The outer surface of the side portion is provided with a plurality of side portion mounting grooves at intervals in the circumferential direction, and the outer side surface of the side portion mounting groove is a first rotary surface; The coil heating assembly comprises a side portion coil heating unit mounted in the side portion mounting groove, the side portion coil heating unit comprises a second disc seat and a side portion coil, the side portion coil is wound on one side surface of the second disc seat, the second disc seat is mounted in the side portion mounting groove, and the other side surface of the second disc seat is a second rotary surface, and the second rotary surface is fitted to the first rotary surface.

2. The electromagnetic heating cooking appliance according to claim 1, characterized in that, The first rotary surface has a first rotary axis, the second rotary surface has a second rotary axis, and the second rotary axis and the second rotary axis coincide.

3. The electromagnetic heating cooking appliance according to claim 1, characterized in that, The side portion mounting groove is concave, the first rotary surface is concave from the inner side to the outer side of the first disc seat, and the second rotary surface is concave from the outer side of the second disc seat to the side of the side portion coil.

4. The electromagnetic heating cooking appliance according to claim 1, characterized in that, The projection of the second disc seat on the first plane is circular, the second rotary surface has a second rotary axis, and the first plane is perpendicular to the second rotary axis.

5. The electromagnetic heating cooking appliance according to claim 1, characterized in that, The second disc seat is mounted in the side portion mounting groove in interference fit.

6. The electromagnetic heating cooking appliance according to claim 1, characterized in that, The outer surface of the side portion is a third rotary surface, the third rotary surface has a third rotary axis, the first rotary surface has a first rotary axis, and the first rotary axis intersects the third rotary axis.

7. The electromagnetic heating cooking appliance according to claim 1, characterized in that, One side surface of the second disc seat is provided with a first winding column, the side portion coil is arranged around the first winding column, and the side portion coil is provided with at least two layers in the extension direction of the first winding column.

8. The electromagnetic heating cooking appliance according to claim 1, characterized in that, The side portion coil heating unit further comprises a first magnetic support and a first magnetic element mounted on the first magnetic support, the first magnetic support is fixedly mounted on one side of the second disc seat provided with the side portion coil, and the first magnetic element is arranged in the radial direction of the side portion coil.

9. The electromagnetic heating cooking appliance according to claim 1, characterized in that, The bottom portion is provided with a bottom portion mounting groove, and the coil heating assembly further comprises a bottom portion coil heating unit mounted in the bottom portion mounting groove, the bottom portion coil heating unit comprises a bottom portion support and a bottom portion coil, and the bottom portion coil is wound on the bottom portion support.

10. The electromagnetic heating cooking appliance according to claim 9, characterized in that, The bottom portion coil heating unit comprises a second magnetic support and a second magnetic element mounted on the second magnetic support, the second magnetic element is arranged in the radial direction of the bottom portion coil, the second magnetic support is mounted on the bottom portion support, and the edge of the second magnetic support is pressed against the edge of the second disc seat.

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