Electromagnetic oven

Abstract

The utility model provides an induction cooker which comprises a coil panel and a bottom shell, and the bottom shell comprises a shell main body which defines a containing cavity used for installing the coil panel; the supporting legs are connected with the bottom wall of the shell main body and are used for supporting the shell main body away from the placement table top; the supporting column is connected with the bottom wall of the shell main body, the supporting column extends towards the placement table top, and the supporting column is located below the coil panel. According to the induction cooker, when the bottom wall deforms, the supporting columns can abut against the placement table top, deformation of the bottom shell is limited and prevented, the structural stability of the bottom shell is ensured, and therefore the installation precision of internal components of the induction cooker is ensured. The wall thickness of the supporting column is larger than the thickness of the area, around the supporting column, of the shell body, it can be guaranteed that the structural strength of the supporting column is larger than that of other parts of the shell body, and the risk of self-deformation of the supporting column is reduced.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to an induction cooker. Background Technology

[0002] Induction cookers are common cooking appliances. Based on the principle of electromagnetic induction, they generate an alternating magnetic field through coil windings. When a pot with a ferromagnetic material is placed on the cooktop, the pot cuts through the alternating magnetic field lines, generating eddy currents in the metal part at the bottom of the pot, causing the pot to heat up and cook the food.

[0003] Currently, users are paying increasing attention to the uniformity of heat distribution on induction cookers when stir-frying or cooking hot pot. To meet this demand, the coil size of induction cookers is getting larger, resulting in a larger overall size. This large size design makes the bottom shell of the induction cooker prone to deformation. In addition, when users place the induction cooker on a metal tabletop, the coil windings may heat the tabletop, and the bottom shell will also be affected by the heat, increasing the risk of deformation. Utility Model Content

[0004] In view of the above problems, this application provides an induction cooker that, by providing support columns for the bottom shell, can limit and prevent deformation of the bottom shell and ensure the structural stability of the bottom shell.

[0005] This application provides an induction cooker, which includes a coil and a bottom shell. The bottom shell includes: a shell body defining a cavity for mounting the coil; a support leg connected to the bottom wall of the shell body for supporting the shell body off a table surface; and a support column connected to the bottom wall of the shell body, extending toward the table surface and located below the coil.

[0006] In this induction cooker, when the bottom wall deforms due to pressure from other components, structural stress, or thermal effects, the support column can abut against the mounting surface, limiting and preventing deformation of the bottom shell, ensuring its structural stability, and thus guaranteeing the installation accuracy of the internal components. Furthermore, the support column, in conjunction with the feet, provides continuous and stable support for the overall structure of the induction cooker. This allows the support column to better maintain the structural stability of the area on the main body corresponding to the coil windings, reducing the risk of thermal deformation, better supporting and accommodating other components, ensuring the installation accuracy of each component, and ultimately guaranteeing the continuous and stable operation of the induction cooker, extending its service life.

[0007] In some embodiments, along the height direction of the induction cooker, the end of the support column away from the shell body is flush with the end of the support leg away from the shell body.

[0008] In this way, the support column and the support leg can work together to support the platform. The support column can support the area near the middle of the shell body (the coil winding is usually located in the area near the middle of the shell body), which can prevent the bottom wall of the shell body from deforming. The support leg can support the periphery of the shell body. The support column and the support leg work together to achieve stable support for the shell body and ensure the structural reliability of the induction cooker.

[0009] In some embodiments, along the height direction of the induction cooker, the end of the support column away from the shell body is higher than the end of the support leg away from the shell body, so that the support column is spaced apart from the table surface.

[0010] In this way, when the legs are supported on the mounting platform, the support column is spaced apart from the platform. On one hand, this provides a certain margin for deformation of the base shell. When the bottom wall of the base shell deforms to a certain extent, the support column comes into contact with the mounting platform, and the platform's restraint prevents further deformation of the base shell, thus limiting the degree of deformation. Furthermore, because the height of the support column is shortened, it does not need to be supported on the mounting platform simultaneously with the legs, reducing the precision requirements for the support column, lowering processing difficulty, and also saving materials and reducing production costs.

[0011] In some embodiments, the height difference between the end of the support column away from the shell body and the end of the support leg away from the shell body is 0.5mm-5mm.

[0012] In this way, on the one hand, it helps to avoid the situation where the height difference is too small, such as less than 0.5mm, and the reserved deformation margin is too small, causing the bottom of the support column to exceed the bottom of the support foot, resulting in the induction cooker being placed unstable and making the processing and manufacturing difficult; on the other hand, it helps to avoid the situation where the height difference is too large, such as greater than 5mm, and the deformation of the bottom shell is too large, resulting in the reduction of the installation accuracy of other internal components.

[0013] In some embodiments, the support column and the shell body are an integral structure.

[0014] In this way, the support columns can better distribute the internal stress of the bottom shell wall, thereby better supporting the bottom shell and preventing its deformation. At the same time, it helps to simplify the manufacturing process of the bottom shell and reduce production costs.

[0015] In some embodiments, the bottom wall of the shell body includes a coil disk mounting area corresponding to the coil disk, and at least a portion of the structure of the coil disk mounting area protrudes outward along the height direction of the induction cooker in a direction away from the coil disk to form the support column.

[0016] Since the coil mounting area is usually the part most susceptible to heat deformation, by making at least part of the structure of the coil mounting area protrude outward to form a support column, the support column can be located directly below the coil. When the user places the induction cooker on an iron tabletop such as a stainless steel tabletop, even if the coil winding heats the stainless steel tabletop, the support column can prevent the coil mounting area, which is most susceptible to heat deformation, from deforming.

[0017] In some embodiments, the coil placement area further includes an arc transition area, through which the sidewall of the support column and the portion of the bottom wall of the shell body located outside the coil placement area are connected.

[0018] This design increases the space under the coil, allowing the arc transition area to guide airflow to converge below the coil, thus enhancing heat dissipation. It also improves the aesthetics of the bottom shell and makes manufacturing easier compared to designs without an arc transition area.

[0019] In some embodiments, the diameter of the arc transition zone is 150mm-220mm.

[0020] In this way, on the one hand, it avoids the support column being difficult to process and having poor strength and easy deformation when the diameter of the arc transition zone is too small, such as less than 150mm; on the other hand, it avoids the impact on the size of the bottom shell when the diameter of the arc transition zone is too large, such as greater than 220mm.

[0021] In some embodiments, the inner surface of the coil disk placement area is provided with a plurality of reinforcing ribs.

[0022] By adding reinforcing ribs, the structural strength of the coil mounting area can be enhanced, reducing the risk of deformation in the coil mounting area.

[0023] In some embodiments, the plurality of reinforcing ribs include at least a plurality of first reinforcing ribs extending along a first direction and a plurality of second reinforcing ribs extending along a second direction, wherein the first reinforcing ribs and the second reinforcing ribs are arranged alternately.

[0024] In this way, the first and second reinforcing ribs work together to improve the structural strength of the bottom shell.

[0025] In some embodiments, the bottom end of the support column is further provided with a heat-resistant layer.

[0026] This prevents the bottom of the support column from melting when it comes into contact with the high-temperature tabletop, thus ensuring the structural stability of the support column itself. Attached Figure Description

[0027] 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, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of an induction cooker according to an embodiment of this application;

[0029] Figure 2 This is an exploded view of an induction cooker according to an embodiment of this application;

[0030] Figure 3 For along Figure 1 Sectional view of section AA;

[0031] Figure 4 This is a partial structural schematic diagram of an induction cooker according to an embodiment of this application;

[0032] Figure 5 This is a structural schematic diagram of the bottom shell at one angle according to an embodiment of this application;

[0033] Figure 6 This is a structural schematic diagram of the bottom shell from another angle according to an embodiment of this application;

[0034] Figure 7 This is a top view of the bottom shell according to an embodiment of this application;

[0035] Figure 8 This is a bottom view of the bottom shell of an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100 - Bottom shell;

[0038] 1-Shell body; 11-Receiving cavity;

[0039] 12-Bottom wall; 121-Coil disc placement area; 122-Support column; 123-Recessed space; 124-Flow guiding structure; 1241-Flow guiding groove; 1242-Flow guiding ridge; 125-Circular transition area; 126-Step structure;

[0040] 13-Side panel;

[0041] 14-Strengthening rib; 141-First reinforcing rib; 142-Second reinforcing rib;

[0042] 15-Air inlet; 16-Air outlet; 17-Mounting platform; 18-Rack reinforcement;

[0043] 2-Feet;

[0044] 200 - Coil; 300 - Cooling fan; 400 - Top cover; 500 - Panel; 600 - Electrical control device;

[0045] 1000-Induction Cooker. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0047] Induction cookers are common cooking appliances. Based on the principle of electromagnetic induction, they generate an alternating magnetic field through coil windings. When a ferromagnetic pot is placed on the cooktop, the pot cuts through the alternating magnetic lines of force, inducing eddy currents in the metal part of the pot's bottom, causing the pot to heat up and thus cooking the food. Currently, users are increasingly concerned about the evenness of heat distribution when using induction cookers for stir-frying, hot pot, and other cooking scenarios. To meet this demand, the coil size of induction cookers is becoming larger, resulting in a larger overall size. This larger design makes the bottom cover of the induction cooker prone to deformation. Additionally, when the user places the induction cooker on a metal surface, the coil windings may heat the surface, and the bottom cover is affected by the heat, further increasing the risk of deformation.

[0048] In view of this, this application provides an induction cooker with a support column installed on the bottom wall of the bottom shell. When the bottom wall deforms due to factors such as pressure from other components, structural stress, or thermal effects, the support column can abut against the mounting surface, limiting and preventing deformation of the bottom shell, ensuring the structural stability of the bottom shell, and thus guaranteeing the installation accuracy of the internal components of the induction cooker. In addition, the support column, together with the support feet, can achieve continuous and stable support for the overall structure of the induction cooker.

[0049] First, combined Figures 1-8The induction cooker 1000 of this embodiment may include components such as a coil 200, a bottom shell 100, an upper shell assembly, a cooling fan 300, and an electronic control device 600. The coil 200 may include a plate body and coil windings wound around the plate body. The plate body provides mounting support for the coil windings. Multiple coil windings may be wound around the plate body and may be distributed radially and / or circumferentially along the plate body. When energized, the coil windings generate an alternating magnetic field, causing the cookware within the magnetic field to heat up, thereby heating the food. The electronic control device 600 may include a circuit board, power harness, etc., and is used to switch the induction cooker 1000 on and off and adjust the heating. The cooling fan 300 drives airflow through the receiving cavity 11 to dissipate heat from the various components within the receiving cavity 11.

[0050] The bottom shell 100 defines a receiving cavity 11, which is used to support components such as the coil 200, the cooling fan 300, and the electronic control device 600. The top of the bottom shell 100 has an opening communicating with the receiving cavity 11. The opening is used to house the upper shell assembly of the induction cooker 1000. The upper shell assembly may include a top cover 400 and a panel 500. The top cover 400 is connected to the periphery of the opening of the bottom shell 100. The panel 500 may be a ceramic panel 500 or other heat-resistant panel 500. The panel 500 is fixed to the top cover 400 and serves as a support surface for cookware. Considering the weight and cost of the induction cooker 1000, the bottom shell 100 may be made of plastic. Of course, the bottom shell 100 may also be made of other materials.

[0051] Combination Figures 3-8 The bottom shell 100 may include the shell body 1, the legs 2 and the support column 122.

[0052] The shell body 1 may include a bottom wall 12 and a side wall 13 surrounding the bottom wall 12, with the bottom end of the side wall 13 connected to the bottom wall 12, such that the bottom shell 100 and the side wall 13 together define a receiving cavity 11 with an opening at the top.

[0053] The support leg 2 is connected to the bottom wall 12 of the shell body 1. The support leg 2 is used to support the shell body 1 away from the placement table. The placement table can be the ground, tabletop or any other object surface suitable for placing the induction cooker 1000. The placement table can be a metal surface or a non-metal surface such as a glass surface, concrete surface, wooden structure surface, etc. This embodiment does not limit the material and type of the placement table.

[0054] The support leg 2 can be columnar, and there can be multiple support legs 2. These multiple support legs 2 can be distributed at intervals along the circumference of the bottom shell 100. For example, there can be four support legs 2, distributed in the four corner areas of the bottom shell 100. Alternatively, the support leg 2 can be rib-shaped, and in this case, the support leg 2 can extend along the circumference of the bottom shell 100. Of course, the support leg 2 can also be other shapes, and this embodiment does not limit this. The support leg 2 can be integrally formed with the shell body 1, or the support leg 2 and the shell body 1 can also be separate structures and connected by any connection method such as bolt connection, snap-fit, plug-in connection, or adhesive connection.

[0055] The support legs 2 can maintain a certain distance between the shell body 1 and the mounting platform, which facilitates air intake into the cavity 11 and also prevents water or other impurities on the mounting platform from contacting or entering the shell body 1.

[0056] The support column 122 is connected to the bottom wall 12 of the shell body 1. The support column 122 extends towards the mounting platform and protrudes from the lower surface of the bottom wall 12. The support column 122 and the coil disk 200 are arranged opposite each other along the height direction of the bottom shell 100, that is, the support column 122 is located below the coil disk 200. The wall thickness of the support column 122 is greater than the thickness of the area of ​​the shell body 1 surrounding the support column 122. It should be noted that when the support column 122 is a solid structure, the wall thickness of the support column 122 refers to the thickness of the support column 122 along the height direction of the bottom shell 100. When the inner side of the support column 122 is a hollow structure, the wall thickness of the support column 122 refers to the distance between the outer surface and the inner surface of the support column 122. In this way, the structural strength of the support column 122 is greater than the structural strength of the rest of the shell body 1, reducing the risk of deformation of the support column 122 itself. This allows the support column 122 to better maintain the structural stability of the area of ​​the shell body 1 corresponding to the coil disk 200 and reduce the risk of thermal deformation.

[0057] Understandably, when the bottom wall 12 of the bottom shell 100 deforms due to pressure from other components, structural stress, or thermal effects, the support column 122 can abut against the mounting surface, limiting and preventing deformation of the bottom shell 100, ensuring the structural stability of the bottom shell 100, and thus guaranteeing the installation accuracy of the internal components of the induction cooker 1000. Furthermore, the support column 122, in conjunction with the support legs 2, can provide continuous and stable support for the overall structure of the induction cooker 1000.

[0058] In some embodiments, along the height direction of the bottom shell 100 (i.e., the height direction of the induction cooker 1000), the end of the support column 122 away from the shell body 1 (i.e., the bottom end of the support column 122) and the end of the support leg 2 away from the shell body 1 (i.e., the bottom end of the support leg 2) are flush. In this way, the support column 122 and the support leg 2 can jointly support the placement surface. The support column 122 can support the area near the middle of the shell body 1 (the coil 200 is usually located in the area near the middle of the shell body 1), which can prevent the bottom wall 12 of the shell body 1 from deforming. The support leg 2 can support the periphery of the shell body 1. The support column 122 and the support leg 2 cooperate with each other to achieve stable support for the shell body 1 and ensure the structural reliability of the induction cooker 1000.

[0059] refer to Figure 3 Considering that deformation of the base shell 100 may be difficult to completely avoid, if the bottom ends of the support column 122 and the support leg 2 are made flush, when the base shell 100 deforms, the bottom ends of the support column 122 and the support leg 2 may not be on the same plane, making it impossible to stably place the induction cooker 1000. Therefore, in some other embodiments, the support column 122 and the support leg 2 can be configured such that, along the height direction of the base shell 100, the end of the support column 122 away from the shell body 1 (i.e., the bottom end of the support column 122) is higher than the end of the support leg 2 away from the shell body 1 (i.e., the bottom end of the support leg 2).

[0060] Thus, when the support leg 2 is supported on the mounting platform, the support column 122 is spaced apart from the mounting platform. On the one hand, this provides a certain margin for deformation of the bottom shell 100. When the bottom wall 12 of the bottom shell 100 deforms to a certain extent, the support column 122 comes into contact with the mounting platform. Under the constraint of the mounting platform, the support column 122 can prevent the bottom shell 100 from deforming further, thereby limiting the degree of deformation of the bottom shell 100. Moreover, since the height of the support column 122 is shortened, the support column 122 does not need to be supported on the mounting platform simultaneously with the support leg 2. This reduces the requirements for the machining accuracy of the support column 122, reduces the machining difficulty, and also helps to save materials and reduce production costs.

[0061] In some embodiments, reference Figure 3The height difference h between the end of the support column 122 furthest from the shell body 1 and the end of the support leg 2 furthest from the shell body 1 is 0.5mm-5mm. For example, the height difference h between the bottom end of the support column 122 and the bottom end of the support leg 2 can be 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4.5mm, or 5mm. Of course, this application does not limit this, and the height difference between the bottom end of the support column 122 and the bottom end of the support leg 2 can be flexibly selected within the above range according to actual needs. In this way, on the one hand, it is beneficial to avoid the deformation allowance being too small when the height difference is too small, such as less than 0.5mm, which would cause the bottom end of the support column 122 to exceed the bottom end of the support leg 2, resulting in the induction cooker 1000 being placed unstable and difficult to process and manufacture; on the other hand, it is beneficial to avoid the deformation of the bottom shell 100 being too large when the height difference is too large, such as greater than 5mm, which would reduce the installation accuracy of other internal components.

[0062] Optionally, there are multiple legs 2, and the support column 122 is located at the center of the multiple legs 2.

[0063] In this way, the support column 122 can cooperate with multiple legs 2 to ensure that the area between the support column 122 and each leg 2 is subjected to uniform force, which is beneficial to ensuring the structural stability of the bottom shell 100.

[0064] In some embodiments, the support column 122 and the shell body 1 are integrally formed; for example, the support column 122 and the shell body 1 can be integrally injection molded. In this way, the support column 122 can better distribute the internal stress of the bottom wall 12 of the bottom shell 100, thereby better supporting the bottom shell 100 and preventing deformation of the bottom shell 100. At the same time, it helps to simplify the manufacturing process of the bottom shell 100 and reduce production costs.

[0065] In some embodiments, reference Figure 4 , Figure 7 and Figure 8 The bottom wall 12 of the shell body 1 may include a coil disk placement area 121, which corresponds to the coil disk 200. In other words, the coil disk placement area 121 is located directly below the coil disk 200. The coil disk placement area 121 may be circular to match the coil disk 200. Optionally, the diameter of the coil disk placement area 121 may be the same as or slightly larger than the diameter of the coil disk 200.

[0066] At least a portion of the structure of the coil mounting area 121 protrudes outward along the height direction of the bottom shell 100 in a direction away from the coil 200 to form a support column 122. Exemplarily, the entire coil mounting area 121 may protrude outward to form the support column 122, or only a portion of the structure of the coil mounting area 121 (e.g., the portion near the center of the coil mounting area 121) may protrude outward to form the support column 122. Furthermore, only the outer surface of the coil mounting area 121 may protrude outward, making the support column 122 a solid structure; alternatively, both surfaces of the coil mounting area 121 may protrude outward simultaneously, making the inner side of the support column 122 a hollow structure.

[0067] Since the coil mounting area 121 is usually the part most susceptible to heat deformation, by making at least a portion of the structure of the coil mounting area 121 protrude to form a support column 122, the support column 122 can be located directly below the coil 200. When the user places the induction cooker 1000 on an iron tabletop such as a stainless steel tabletop, even if the coil winding heats the stainless steel tabletop, the support column 122 can prevent the coil mounting area 121, which is most susceptible to heat deformation, from deforming.

[0068] Optionally, combined Figure 3 The thickness of the coil mounting area 121 is greater than the thickness of the area of ​​the bottom wall 12 of the shell body 1 located outside the coil mounting area 121. This enhances the strength of the coil mounting area 121 and helps prevent deformation of the coil mounting area 121, which is most susceptible to heat deformation.

[0069] In some embodiments, reference Figure 3 , Figure 4 and Figure 7 Along the height direction of the bottom shell 100, the coil disk mounting area 121 protrudes from the inside of the receiving cavity 11 toward the outside of the receiving cavity 11 to form a support column 122, and a recessed space 123 located inside the support column 122. In other words, in this embodiment, the support column 122 is formed by the simultaneous outward protrusion of both sides of the coil disk mounting area 121. Thus, outside the receiving cavity 11, the coil disk mounting area 121 is a protruding structure, and inside the receiving cavity 11, the coil disk mounting area 121 is a groove structure (i.e., the recessed space 123). This helps to reduce the weight of the bottom shell 100 and can increase the space below the coil disk 200, guiding airflow to converge below the coil disk 200, enhancing the heat dissipation effect on the coil disk 200 and the coil disk mounting area 121 on the bottom wall 12, thereby reducing the heat impact on the bottom shell 100 and reducing the risk of deformation of the bottom shell 100.

[0070] In some embodiments, combined with Figure 3 and Figure 7The inner surface of the recessed space 123 is formed as an arc surface. For example, the inner surface of the recessed space 123 is a sphere. This can reduce the wind resistance of the inner surface of the recessed space 123 and facilitate the smoother flow of air through the recessed space 123 to dissipate heat for the coil disk 200 and the coil disk mounting area 121.

[0071] In some embodiments, reference Figure 6 The coil disk mounting area 121 also includes an arc transition area 125. The portion of the support column 122 and the bottom wall 12 outside the coil disk mounting area 121 are connected through the arc transition area 125. Understandably, the arc transition area 125 forms part of the cavity wall of the recessed space 123, and the support column 122 forms another part of the cavity wall of the recessed space 123. This arrangement, on the one hand, increases the space below the coil disk 200, and the arc transition area 125 can guide airflow to converge below the coil disk 200, enhancing the heat dissipation effect on the coil disk 200; on the other hand, it improves the aesthetic appearance of the bottom shell 100, and is easier to manufacture compared to not having the arc transition area 125.

[0072] In some embodiments, reference Figure 6 The diameter d of the arc transition region 125 is 150mm-220mm. For example, the diameter d of the arc transition region 125 can be 150mm, 160mm, 170mm, 180mm, 190mm, 200mm, 210mm, or 220mm. Of course, this application does not impose any restrictions on this, and the diameter of the arc transition region 125 can be reasonably selected within the above range as needed. In this way, on the one hand, it avoids the support column 122 being difficult to process and having poor strength and easy deformation when the diameter of the arc transition region 125 is too small, such as less than 150mm; on the other hand, it avoids the impact on the dimensions of the bottom shell 100 when the diameter of the arc transition region 125 is too large, such as greater than 220mm.

[0073] In some embodiments, reference Figure 7 The inner surface of the coil mounting area 121 is provided with multiple reinforcing ribs 14. The reinforcing ribs 14 can enhance the structural strength of the coil mounting area 121 and reduce the risk of deformation of the coil mounting area 121.

[0074] In some embodiments, reference Figure 7 The plurality of reinforcing ribs 14 includes at least a first reinforcing rib 141 and a second reinforcing rib 142. There are several first reinforcing ribs 141 extending along a first direction, and several second reinforcing ribs 142 extending along a second direction. The first reinforcing ribs 141 and the second reinforcing ribs 142 are arranged alternately. Thus, the first reinforcing ribs 141 and the second reinforcing ribs 142 cooperate with each other, thereby improving the structural strength of the bottom shell 100.

[0075] Optionally, the first direction can be the width direction of the bottom shell 100 (i.e., Figure 7 The first direction can be the X direction (or the first direction can be inclined relative to the width direction of the bottom shell 100); the second direction can be the length direction of the bottom shell 100 (i.e., the X direction). Figure 7 (in the Y direction), or, the second direction is inclined relative to the length direction of the bottom shell 100.

[0076] In some embodiments, reference Figure 7 The bottom wall 12 of the shell body 1 is also provided with multiple mounting platforms 17. The multiple mounting platforms 17 are arranged around the coil disk placement area 121 and adjacent to the outer periphery of the coil disk placement area 121. In other words, the multiple mounting platforms 17 are arranged around the recessed space 123. The height of the mounting platforms 17 is higher than the height of the reinforcing rib 14. The coil disk 200 can be supported and fixed on the mounting platforms 17. In this way, the height of the space below the coil disk 200 can be further increased, and the airflow can pass through the recessed space 123 more smoothly to dissipate heat for the coil disk 200 and the coil disk placement area 121, and reduce the risk of deformation of the bottom shell 100.

[0077] Optionally, the mounting platform 17 may be provided with a threaded hole extending vertically, and the coil disc 200 may be provided with a threaded mating hole. The mounting platform 17 and the coil disc 200 are connected by fasteners passing through the threaded hole and the threaded mating hole, thus making the installation of the coil disc 200 relatively simple.

[0078] In some embodiments, the cross-sectional shape of the support column 122 is circular, and the cross-section is perpendicular to the height direction of the bottom shell 100. Thus, the structure of the support column 122 is relatively simple and easy to process and manufacture.

[0079] In some embodiments, the diameter of the support column 122 gradually decreases along the height direction of the bottom shell 100 and away from the coil winding. This facilitates airflow inside the recessed space 123, and the structure of the support column 122 is relatively simple, making it easy to process and manufacture.

[0080] Optionally, the edge of the coil placement area 121 protrudes towards the interior of the receiving cavity 11 relative to the bottom wall 12 region outside the coil placement area 121, so as to form a stepped structure 126 at the connection between the coil placement area 121 and the bottom wall 12 region outside the coil placement area 121. In this way, compared with the edge of the coil placement area 121 being a planar structure relative to the bottom wall 12 region outside the coil placement area 121, it is beneficial to enhance the deformation resistance of the coil placement area 121.

[0081] In some embodiments, reference Figure 7 and Figure 8The coil disk mounting area 121 can have multiple airflow guiding structures 124, such as airflow guiding ribs, airflow guiding grooves 1241, etc. These multiple airflow guiding structures 124 are distributed circumferentially along the coil disk mounting area 121 and extend spirally along the height direction of the bottom shell 100. By providing the airflow guiding structures 124, the airflow below the coil disk 200 can be guided upwards in a spiral motion, enhancing the heat dissipation effect on the coil disk 200 and the coil disk mounting area 121 of the bottom shell 100, reducing the heat impact on the bottom shell 100, and thus reducing the risk of thermal deformation of the bottom shell 100.

[0082] In some embodiments, reference Figure 7 and Figure 8 Multiple airflow guiding structures 124 are formed on the inner surface of the recessed space 123. Since the recessed space 123 is located below the coil disk 200, the inner surface of the recessed space 123 is the inner surface of the arc transition area 125. The recessed space 123 has a large space and can gather more airflow. The airflow guiding structures 124 are set on the inner wall of the recessed space 123, which can guide the airflow in the recessed space 123 to spiral upward, enhance the heat dissipation effect on the coil disk 200, and reduce the risk of the bottom shell 100 being deformed by heat.

[0083] In some embodiments, reference Figure 7 The flow guiding structure 124 includes a flow guiding groove 1241 located on the inner surface of the recessed space 123, that is, the flow guiding structure 124 can be formed by the outward recess of the inner surface of the recessed space 123. In this way, the flow guiding structure 124 has a relatively simple construction, is easy to manufacture, and can guide the airflow well.

[0084] In some embodiments, reference Figure 8 The flow guiding structure 124 also includes flow guiding ridges 1242 located on the outer surface of the recessed space 123. For example, the cavity wall of the recessed space 123 can bulge outward as a whole to form a flow guiding groove 1241 on the inner surface and a flow guiding ridge 1242 on the outer surface. By forming the flow guiding ridges 1242, the appearance of the bottom shell 100 can be improved.

[0085] In some embodiments, the area of ​​the housing body 1 other than the coil placement area 121 is provided with an air inlet 15 and an air outlet 16. A recessed space 123 communicates with both the air inlet 15 and the air outlet 16. A cooling fan 300 drives airflow from the air inlet 15 through the recessed space 123 to the air outlet 16. For example, the air inlet 15 can be located on the bottom wall 12 of the housing body 1, around the coil placement area 121, while the air outlet 16 is located on the side wall 13 of the housing body 1; or, the air outlet 16 can be located on the bottom wall 12 of the housing body 1, around the coil placement area 121, while the air inlet 15 is located on the side wall 13 of the housing body 1. The location of the cooling fan 300 within the receiving cavity 11 is not specifically limited. Thus, a complete heat dissipation channel is formed inside the bottom shell 100, thereby dissipating heat from the coil 200 and reducing the impact of heat on the structure of the bottom shell 100.

[0086] In some embodiments, reference Figure 7 The coil disk placement area 121 is surrounded by a surrounding rib 18. The surrounding rib 18 extends circumferentially along the coil disk placement area 121 to form an arc segment. By setting the surrounding rib 18, it can be ensured that the airflow discharged from the cooling fan 300 must pass through the coil disk placement area 121 before spreading to the surrounding area, thereby ensuring the heat dissipation effect on the coil disk 200 and the coil disk placement area 121.

[0087] In some embodiments, the bottom shell 100 may further include a heat-resistant layer disposed at the bottom end of the support column 122. The heat-resistant layer is made of a flame-retardant and non-deformable material, so as to prevent the bottom end of the support column 122 from melting when it comes into contact with a high-temperature tabletop, thereby ensuring the structural stability of the support column 122 itself.

[0088] Optionally, the heat-resistant layer and the support column 122 can be an integral structure to ensure the connection stability of the heat-resistant layer and the support column 122.

[0089] Alternatively, the heat-resistant layer and the support column 122 can be separate structures, connected by any method such as bolting, snap-fitting, plugging, or adhesive bonding. This facilitates the maintenance and replacement of the heat-resistant layer.

[0090] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0091] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0092] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0093] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An induction cooker, the induction cooker comprising a coil and a bottom shell, characterized in that, The bottom shell includes: The shell body defines a receiving cavity for mounting the coil disk; The support legs are connected to the bottom wall of the shell body and are used to support the shell body off the table surface. A support column is connected to the bottom wall of the shell body, the support column extends toward the mounting platform, and the support column is located below the coil disk.

2. The induction cooker according to claim 1, characterized in that, Along the height direction of the induction cooker, the end of the support column away from the shell body is flush with the end of the support leg away from the shell body.

3. The induction cooker according to claim 1, characterized in that, Along the height direction of the induction cooker, the end of the support column away from the shell body is higher than the end of the support leg away from the shell body, so that the support column is spaced apart from the table surface.

4. The induction cooker according to claim 3, characterized in that, The height difference between the end of the support column away from the shell body and the end of the support leg away from the shell body is 0.5mm-5mm.

5. The induction cooker according to any one of claims 1-4, characterized in that, The support column and the shell body are an integral structure.

6. The induction cooker according to any one of claims 1-4, characterized in that, The bottom wall of the shell body includes a coil disk mounting area corresponding to the coil disk, and at least a portion of the structure of the coil disk mounting area protrudes outward along the height direction of the induction cooker in a direction away from the coil disk to form the support column.

7. The induction cooker according to claim 6, characterized in that, The coil disk placement area also includes an arc transition area, through which the side wall of the support column and the portion of the bottom wall of the shell body located outside the coil disk placement area are connected.

8. The induction cooker according to claim 7, characterized in that, The diameter of the arc transition zone is 150mm-220mm.

9. The induction cooker according to claim 6, characterized in that, The inner surface of the coil mounting area is provided with multiple reinforcing ribs.

10. The induction cooker according to claim 9, characterized in that, The plurality of reinforcing ribs includes at least a plurality of first reinforcing ribs extending along a first direction and a plurality of second reinforcing ribs extending along a second direction. The first reinforcing rib and the second reinforcing rib are arranged alternately.

11. The induction cooker according to any one of claims 1-4, characterized in that, The bottom end of the support column is also provided with a heat-resistant layer.

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