Electromagnetic cooking appliance

Abstract

The utility model discloses an electromagnetic cooking utensil, including heat preservation ring, inner bag and electromagnetic wire disc, electromagnetic wire disc is located below heat preservation ring, and the outer surface of electromagnetic wire disc is provided with the electromagnetic coil, and the inner bag is placed in the heat preservation ring, and the lower edge of heat preservation ring is provided with the first fixed part, and the mouth of electromagnetic wire disc is provided with the second fixed part with first fixed part cooperation, to make electromagnetic wire disc with heat preservation ring fixed connection, and the second fixed part is located in the heat preservation ring, and the cooperation position of first fixed part and second fixed part is provided with sealing element, and sealing element seals the gap between electromagnetic wire disc and heat preservation ring. The cooperation position of first fixed part and second fixed part still is provided with sealing element, so that when the liquid of heat preservation ring inner wall flows to this place, cannot flow to the outside of electromagnetic wire disc through the gap, but can only flow to the inside of electromagnetic wire disc. Such reduces the possibility of coil water leakage.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to an electromagnetic cooking appliance. Background Technology

[0002] In modern family life, the heating performance of cooking appliances directly affects the taste and nutrition of cooked food. With the development of technology, IH (induction heating) technology, with its advantages of high heating efficiency and fast heating speed, has been widely used in the field of cooking appliances, such as rice cookers and pressure cookers.

[0003] Taking electric rice cookers and pressure cookers as examples, they typically include a heat preservation cover and an electromagnetic coil located below the heat preservation cover. The two work together to form a cavity. The inner pot is placed inside the cavity, and the magnetic field generated by the coil wound on the electromagnetic coil after being energized heats the inner pot.

[0004] For example, Chinese patent CN220141357U discloses a pressure cooking appliance, which, in order to improve the connection stability and uniformity between the electromagnetic coil and the heat preservation cover, designs the bottom of the heat preservation cover as a concave structure, so that the edge of the electromagnetic coil extends into the inside of the heat preservation cover and is fixed to the heat preservation cover.

[0005] During use, due to overfilling the inner pot or other reasons, liquid may overflow from the inner pot. Some of the overflowing liquid will be collected in the water-collecting ring at the top of the pot, while some will flow along the inner wall of the insulation cover into the receiving cavity and continue flowing down the side wall of the insulation cover to the fixed position between the insulation cover and the electromagnetic coil at the bottom. Since the rim of the electromagnetic coil is located inside the insulation cover, and there is an unavoidable assembly gap between them, some of the liquid flowing to this point will flow to the inside of the electromagnetic coil, while some will flow to the outside of the electromagnetic coil through the assembly gap. Since the outer surface of the electromagnetic coil is wound with a coil, there is a risk of leakage when the coil comes into contact with water. This could cause the live parts and easily accessible parts of the cooking appliance (usually the metal casing or other accessible surfaces) to break down (i.e., the leakage current exceeds the specified limit). Utility Model Content

[0006] This invention provides an electromagnetic cooking appliance to solve the problem that liquid entering the heat preservation cover can easily flow through the assembly gap at the connection between the heat preservation cover and the electromagnetic coil to the outer surface of the electromagnetic coil, and then come into contact with the coil, causing leakage.

[0007] The technical solution adopted in this utility model is as follows:

[0008] An electromagnetic cooking appliance includes a heat-insulating ring, an inner pot, and an electromagnetic coil. The electromagnetic coil is located below the heat-insulating ring, and an electromagnetic coil is wound around its outer surface. The inner pot is placed inside the heat-insulating ring. A first fixing part is provided on the lower edge of the heat-insulating ring, and a second fixing part is provided on the edge of the electromagnetic coil to cooperate with the first fixing part, so that the electromagnetic coil is fixedly connected to the heat-insulating ring. The second fixing part is located inside the heat-insulating ring. A sealing element is provided at the mating position of the first fixing part and the second fixing part to seal the gap between the electromagnetic coil and the heat-insulating ring.

[0009] In this invention, the second fixing part along the edge of the electromagnetic coil is located inside the insulation ring, simplifying the fit between the first and second fixing parts. After assembly, this reduces the gap between the electromagnetic coil and the insulation ring, resulting in a more compact assembly. This concentrates heat within the space enclosed by the insulation ring and the electromagnetic coil, preventing heat loss through the gap. Simultaneously, a sealing element is provided at the mating point of the first and second fixing parts to seal the gap. This prevents liquid flowing from the inner wall of the insulation ring from reaching the outer side of the electromagnetic coil (the side with the electromagnetic coil), forcing it to flow only to the inner side. This reduces the possibility of leakage when the coil comes into contact with water, ensuring the cooking appliance meets safety regulations and reliably passes overflow and electrical strength tests. Furthermore, it significantly improves the safety and reliability of the electromagnetic cooking appliance during use.

[0010] The first fixing part includes a fixing flange extending toward the interior of the heat preservation ring, and the second fixing part includes a mating flange extending outward from the edge of the electromagnetic coil. The mating flange is located above the fixing flange and rotates with the fixing flange. The electromagnetic cooking appliance also includes a locking member, which is located above the mating flange and engages with the fixing flange to clamp the fixing mating flange. The sealing member is located above the locking member or between the mating flange and the fixing flange.

[0011] In this design, the mating flange is located above the fixed flange. The two flanges mate to form a stop through rotation, and then a locking element presses against the mating flange, securing it to the fixed flange. This clamping action between the locking element and the fixed flange locks the electromagnetic coil and the insulation ring in place. Compared to screws, this rotational fixing method simplifies and improves assembly efficiency. Furthermore, the seal can be positioned above the locking element or between the mating and fixed flanges, sealing the gap between the electromagnetic coil and the insulation ring. When the seal is above the locking element, most of it is exposed inside the insulation ring, further shielding the gap between the mating flange and the inner wall of the insulation ring. When the seal is between the mating and fixed flanges, it achieves an almost concealed design. Clamped between the mating and fixed flanges, the seal ensures a tight seal while minimizing wear from hard contact.

[0012] The seal is fixed to the upper surface of the locking element; or, the seal and the locking element are integrally formed.

[0013] In this solution, the sealing element and the locking element can be two independent components. The sealing element can be fixed to the upper surface of the locking element through subsequent assembly, allowing them to be manufactured independently and reducing processing difficulty. Alternatively, the sealing element can be integrally molded with the locking element, forming a single component that can both lock the fixed flange and the mating flange, and seal the gaps.

[0014] The seal is located on the upper side of the locking element and abuts against the inner wall of the insulation ring. The seal has a sealing lip, which is located between the outer periphery of the locking element and the inner wall of the insulation ring.

[0015] In this design, the sealing lip of the seal is located between the outer periphery of the locking element and the inner wall of the insulation ring. The two elements clamp the sealing lip horizontally, sealing the transverse gap between them. This not only seals the gap but also centers the electromagnetic coil, preventing lateral movement relative to the insulation ring caused by the gap. Furthermore, sealing the transverse gap also prevents liquid flowing down the inner wall of the insulation ring from reaching the sealing lip, thus guiding the liquid towards the inner side of the electromagnetic coil and preventing prolonged accumulation of liquid in the transverse gap that could produce an odor.

[0016] The seal is located on the upper side of the locking member. The seal has a guide side facing the inside of the insulation ring. The guide side is provided with a guide slope that extends downward towards the inside of the insulation ring.

[0017] In this design, since the seal is located above the locking element, part of the seal is exposed inside the insulation ring. By setting a flow-guiding slope on the surface of the seal, when the liquid on the inner wall of the insulation ring flows to the seal, it can flow towards the inside of the electromagnetic coil under the guidance of the flow-guiding slope. This allows the seal to not only perform a sealing function but also a flow-guiding function, further reducing the risk of liquid flowing to the outside of the electromagnetic coil and improving safety performance. At the same time, it eliminates the need for additional flow-guiding elements, saving costs.

[0018] The seal has a sealing side facing the inner wall of the insulation ring, and the sealing side is provided with a sealing protrusion that abuts against the inner wall of the insulation ring.

[0019] In this design, a seal is formed by the sealing protrusion abutting against the inner wall of the insulation ring. This allows the sealing side to partially abut against the inner wall of the insulation ring while partially separating from it. In this way, while ensuring the sealing effect, the contact force between the seal and the insulation ring is appropriately reduced, thereby maintaining the good posture and positional stability of the seal and preventing excessive deformation or displacement of the seal under excessive extrusion pressure, which would affect the sealing performance.

[0020] The bottom wall of the electromagnetic coil has an opening in the center for the temperature measuring element to pass through. The opening is surrounded by upward-protruding water-blocking ribs. The bottom wall of the electromagnetic coil has a water-draining hole located outside the water-blocking ribs.

[0021] In this design, the liquid flowing inside the electromagnetic coil is guided by the inner wall of the coil to converge towards the bottom center and then discharged downwards through the drain hole. The temperature sensor is located at the bottom center of the electromagnetic coil, while the drain hole is located on the outside of the opening (away from the center of the electromagnetic coil), that is, upstream of the opening along the liquid flow direction, allowing the liquid to drain through the drain hole before reaching the opening. To prevent liquid leakage through the opening, the wiring harness and other electrical components at the temperature sensor are protected from damage by water. Simultaneously, the outer periphery of the opening is equipped with upward-protruding water-blocking ribs, further obstructing the liquid and preventing it from flowing to the opening.

[0022] The electromagnetic cooking appliance also includes a base located below the electromagnetic coil. The base is equipped with baffle ribs that enclose a drainage area. The drainage area has a drain outlet, and the downward projection of the drain hole is located within the drainage area.

[0023] In this design, the liquid flowing from the drain hole of the electromagnetic coil will drip into the drainage area of ​​the base and be discharged through the drain outlet. The baffle ribs surround the drainage area, which can block the liquid dripping onto the base. Even if it is not discharged through the drain outlet in time, it will not spread from the drainage area to other areas of the base.

[0024] The electromagnetic coil has a winding area and a water-blocking rib. The water-blocking rib is located on the side wall of the electromagnetic coil and protrudes outward. The winding area is located below the water-blocking rib.

[0025] In this design, the sidewall of the electromagnetic coil is provided with outwardly protruding water-blocking ribs. When liquid flows to the outside of the sidewall of the electromagnetic coil, the water-blocking ribs can block the liquid from flowing down the sidewall of the electromagnetic coil into the winding area. This makes the water-blocking ribs another layer of protection above the winding area, further reducing the risk of liquid flowing down the outer surface of the electromagnetic coil to the electromagnetic coil.

[0026] The inner liner has an opening area located above the highest water level line. The opening area has an outwardly protruding pressure-bearing structure, and the side wall of the insulation ring is provided with an inwardly protruding support structure. The pressure-bearing structure is supported by the support structure.

[0027] In this design, a pressure-bearing structure is installed at the opening of the inner liner. This structure abuts against the support structure of the insulation ring to form a pressure-bearing section. When the internal air pressure of the inner liner increases, the inner liner tends to move downwards under the pressure. The support structure supports the pressure-bearing structure to withstand the downward pressure on the inner liner. This shifts the pressure-bearing position of the inner liner from the traditional bottom to the opening. This avoids direct contact between the lower electromagnetic coil and the inner liner, preventing problems such as coil melting, and also avoids excessive downward pressure on the electromagnetic coil from the inner liner, which could damage the coil. Furthermore, it ensures proper winding of the bottom coil of the electromagnetic coil, guaranteeing the integrity of the winding. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 This is a cross-sectional view of the pot body structure of an electromagnetic cooking appliance according to one embodiment of the present invention.

[0030] Figure 2 for Figure 1 An enlarged view of region A in the image, with arrows indicating the direction of liquid flow;

[0031] Figure 3 This is a schematic diagram of the structure of an electromagnetic coil according to one embodiment of the present invention;

[0032] Figure 4 for Figure 3 Cross-sectional view of the electromagnetic coil;

[0033] Figure 5This is a schematic diagram of the internal structure of an electromagnetic coil according to one embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the heat-insulating ring according to one embodiment of the present invention;

[0035] Figure 7 This is an exploded view of a portion of the structure of an electromagnetic cooking appliance according to one embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the locking component according to one embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of the base structure according to one embodiment of the present invention;

[0038] Figure 10 This is a cross-sectional view of the inner liner according to one embodiment of the present invention.

[0039] in:

[0040] 1. Insulation ring; 11. Support structure; 12. First fixing part; 121. Fixing flange; 13. Horizontal gap; 14. Vertical gap;

[0041] 2. Electromagnetic coil; 21. Second fixing part; 211. Fitting flange; 22. Electromagnetic coil; 23. Temperature measuring element; 24. Opening; 241. Water-blocking rib; 25. Leakage hole; 26. Water-blocking rib; 261. Winding area; 27. Bottom wall; 28. Arc-shaped part; 29. ​​Side wall;

[0042] 3. Inner liner; 31. Pressure-bearing structure;

[0043] 4. Seal; 41. Sealing lip; 42. Sealing side; 421. Sealing protrusion; 43. Guide slope;

[0044] 5. Locking components; 51. Fixing posts;

[0045] 6. Base; 61. Enclosure reinforcement; 62. Drainage area; 63. Drainage outlet. Detailed Implementation

[0046] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0048] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] like Figure 1 , Figure 2 As shown, an electromagnetic cooking appliance includes a heat-insulating ring 1, an inner pot 3, and an electromagnetic coil 2. The electromagnetic coil 2 is located below the heat-insulating ring 1, and an electromagnetic coil 22 is wound around the outer surface of the electromagnetic coil 2. The inner pot 3 is placed inside the heat-insulating ring 1. A first fixing part 12 is provided on the lower edge of the heat-insulating ring 1, and a second fixing part 21 is provided on the opening edge of the electromagnetic coil 2 to cooperate with the first fixing part 12, so that the electromagnetic coil 2 is fixedly connected to the heat-insulating ring 1. The second fixing part 21 is located inside the heat-insulating ring 1. A sealing member 4 is provided at the cooperation position of the first fixing part 12 and the second fixing part 21 to seal the gap between the electromagnetic coil 2 and the heat-insulating ring 1.

[0052] It should be noted that, as Figure 1 , Figure 3 , Figure 4As shown, the electromagnetic coil 2 has a bowl-shaped structure with a bottom wall 27, side walls 29, and an arc-shaped portion 28 located between the bottom wall 27 and the side walls 29. The side walls 29 are vertical walls, and the heat-insulating ring 1 is located above the side walls 29. The heat-insulating ring 1 and the electromagnetic coil 2 together form a cavity for accommodating the inner liner 3. The heat-insulating ring 1 constitutes part of the side wall 29 of the cavity, the side wall 29 of the electromagnetic coil 2 constitutes part of the side wall 29 of the cavity, and the bottom wall 27 constitutes the bottom wall 27 of the cavity.

[0053] Preferably, such as Figure 3 , Figure 4 As shown, electromagnetic coils 22 are wound around the side wall 29, bottom wall 27, and arc-shaped portion 28 of the electromagnetic coil 2.

[0054] In this invention, the second fixing part 21 at the edge of the electromagnetic coil 2 is located inside the insulation ring 1, which simplifies the cooperation between the first fixing part 12 and the second fixing part 21. After assembly, it reduces the gap between the electromagnetic coil 2 and the insulation ring 1, making their assembly more compact. This concentrates heat within the space enclosed by the insulation ring 1 and the electromagnetic coil 2, preventing heat loss through the gap. Simultaneously, a sealing element 4 is provided at the mating position of the first fixing part 12 and the second fixing part 21 to seal the gap. This prevents liquid flowing from the inner wall of the insulation ring 1 from flowing to the outer side of the electromagnetic coil 2 (the side with the electromagnetic coil 22) and instead allows it to flow only to the inner side of the electromagnetic coil 2. This reduces the possibility of leakage when the coil comes into contact with water, enabling the cooking appliance to meet safety regulations and reliably pass the overflow test and electrical strength test (test standards: overflow test as specified in Clause 15.2 and electrical strength test as specified in Clause 16.3 of IEC 60335-1 "Safety of household and similar electrical appliances" Part 1: General Requirements). At the same time, it also greatly improves the safety and reliability of electromagnetic cooking appliances during use.

[0055] It is understood that the electromagnetic coil 22 is wound around the outer surface of the electromagnetic coil 2, while the inner surface of the electromagnetic coil 2 is the wall of the coil body. Liquid flowing to this surface will not damage the electrical components or cause leakage. Therefore, in this invention, the purpose of the sealing element 4 is to seal the gap between the electromagnetic coil 2 and the insulation ring 1, preventing liquid from flowing to the outer surface of the electromagnetic coil 2 and guiding the liquid as much as possible to the inner surface of the electromagnetic coil 2. Figure 2 As shown.

[0056] It should be noted that the present invention does not limit the fixing method of the electromagnetic coil 2 and the heat preservation ring 1. In one embodiment, the first fixing part 12 is a flange structure that folds inward toward the heat preservation ring 1, and the second fixing part 21 is a flange structure that folds outward at the opening of the electromagnetic coil 2 and is located above the first fixing part 12. The two are fixedly connected by fasteners such as screws and bolts.

[0057] As a preferred implementation method, such as Figure 2 As shown, the first fixing part 12 includes a fixing flange 121 extending toward the interior of the heat preservation ring 1, and the second fixing part 21 includes a mating flange 211 extending outward from the edge of the electromagnetic coil 2. The mating flange 211 is located above the fixing flange 121 and rotatably engages with the fixing flange 121. The electromagnetic cooking appliance also includes a locking member 5, which is located above the mating flange 211 and engages with the fixing flange 121 to clamp and fix the mating flange 211.

[0058] The mating flange 211 is located above the fixed flange 121. By rotating, the two mating flanges form a stop. Then, the locking member 5 presses against the mating flange 211, fixing it to the fixed flange 121. This clamping mechanism, with the locking member 5 and the fixed flange 121 clamping the mating flange 211 from both above and below, locks the electromagnetic coil 2 and the insulation ring 1 in place. Compared to screws or other methods, this rotational fixing method is simpler and more convenient, improving assembly efficiency.

[0059] Specifically, in one embodiment of this implementation, a circumferentially extending engagement groove can be provided on one of the fixed flange 121 and the mating flange 211, and a rotating buckle that mates with the engagement groove can be provided on the other, so that the two can be locked together by rotation.

[0060] In another preferred embodiment, such as Figure 3 , Figure 6 As shown, multiple fixed flanges 121 are spaced apart circumferentially along the insulation ring 1, with clearance grooves formed between adjacent fixed flanges 121. Multiple mating flanges 211 are spaced apart along the edge of the electromagnetic coil 2, so that the mating flanges 211 have an unlocked state corresponding to the clearance groove and a locked state corresponding to the fixed flanges 121. During assembly, the mating flanges 211 are first aligned vertically with the clearance groove, allowing them to extend into the insulation ring 1. Then, the insulation ring 1 and the electromagnetic coil 2 are rotated relative to each other, causing the mating flanges 211 to move directly above the fixed flanges 121, forming a stop in the vertical direction. The locking member 5 is an annular pressure strip, which is pressed against the upper side of the mating flanges 211, fixing the locking member 5 to the fixed flanges 121. The two form a clamping and locking mechanism for the mating flanges 211, restricting the relative rotation of the electromagnetic coil 2 and the insulation ring 1.

[0061] Of course, in other embodiments, the first fixing part 12 can also be fixed by cooperating with the second fixing part 21 through other rotational fixing methods, which is not limited here.

[0062] It is understandable that, regardless of which of the above embodiments the electromagnetic coil 2 and the insulation ring 1 are fixed in, the second fixing part 21 is positioned above the first fixing part 12, such as... Figure 2 As shown, the gaps between the two include a transverse gap 13 between the outer periphery of the second fixing part 21 and the inner wall of the insulation ring 1, and a vertical gap 14 located between the lower side of the second fixing part 21 and the upper side of the first fixing part 12. Liquid on the inner wall of the insulation ring 1 will also flow sequentially through the transverse gap 13 and the vertical gap 14 to the outer surface of the electromagnetic coil 2. In this invention, it is understood that the sealing member 4 only needs to seal at least one of the transverse gap 13 and the vertical gap 14 to prevent liquid from flowing to the outer surface of the electromagnetic coil 2.

[0063] Specifically, in this embodiment, the sealing member 4 is located above the locking member 5 or between the mating flange 211 and the fixing flange 121.

[0064] When the seal 4 is above the locking member 5, most of the seal 4 is exposed inside the insulation ring 1 and abuts against the inner wall of the insulation ring 1 to seal it, so that not only the above-mentioned transverse gap 13 is sealed, but also the gap between the mating flange 211 and the inner wall of the insulation ring 1 is blocked.

[0065] When the seal 4 is located between the mating flange 211 and the fixed flange 121, that is, within the vertical gap 14, the seal 4 can be almost hidden. It is clamped by the mating flange 211 and the fixed flange 121 from above and below, so that the two form an abutment through the seal 4, which reduces the wear caused by hard contact while ensuring the sealing performance.

[0066] Preferably, such as Figure 2 As shown, the sealing element 4 is fixed to the upper surface of the locking element 5; or, the sealing element 4 and the locking element 5 are integrally formed.

[0067] like Figure 7 As shown, the sealing element 4 and the locking element 5 can be two independent components. The sealing element 4 is fixed to the upper surface of the locking element 5 through subsequent assembly, so that the two can be manufactured independently, reducing the processing difficulty. Preferably, the sealing element 4 is made of an elastic material such as silicone.

[0068] like Figure 8As shown, the sealing element 4 can also be integrally formed with the locking element 5, making them a single component. This single component fulfills two functions: locking the fixed flange 121 and the mating flange 211, and sealing the gaps, thus saving assembly costs. Specifically, as... Figure 8 As shown, the locking element 5 is made of an elastic material such as silicone, so that the locking element 5 has the dual function of sealing and pressing the second fixing part 21. Figure 8 As shown, the outer periphery and bottom of the locking member 5 are provided with fixing posts 51 for fixing to the insulation ring 1.

[0069] Preferably, such as Figure 2 As shown, the sealing element 4 is located on the upper side of the locking element 5. The sealing element 4 abuts against the inner wall of the insulation ring 1. The sealing element 4 has a sealing lip 41, which is located between the outer periphery of the locking element 5 and the inner wall of the insulation ring 1.

[0070] The sealing lip 41 of the sealing element 4 is located between the outer periphery of the locking element 5 and the inner wall of the insulation ring 1, that is, within the transverse gap 13. The insulation cover and the locking element 5 clamp the sealing lip 41 from the inside and outside (horizontally), so that the sealing lip 41 seals the transverse gap between them. This not only seals the gap, but also centers and positions the electromagnetic coil 2, preventing the electromagnetic coil 2 from swaying laterally relative to the insulation ring 1 due to the presence of the gap.

[0071] It is understandable that the liquid flowing from the inner wall of the insulation ring 1 to the outer surface of the electromagnetic coil 2 first enters the transverse gap 13, then the vertical gap 14, and finally flows to the outer surface of the electromagnetic coil 2. That is, the transverse gap 13 is located upstream of the vertical gap 14. Therefore, in this embodiment, the sealing lip 41 seals the transverse gap 13 and also blocks the liquid flowing down from the inner wall of the insulation ring 1 above the sealing lip 41, thereby facilitating the flow of liquid towards the inner side of the electromagnetic coil 2 without entering the transverse gap 13. This prevents the liquid from accumulating in the transverse gap 13 for too long and causing odor.

[0072] Furthermore, such as Figure 2 As shown, the seal 4 is located on the upper side of the locking member 5. The seal 4 has a guide side facing the inside of the insulation ring 1. The guide side is provided with a guide slope 43 that extends downward towards the inside of the insulation ring 1.

[0073] Since the seal 4 is located above the locking element 5, part of the seal 4 is exposed inside the insulation ring 1. Thus, by setting a flow guiding slope 43 on the surface of the seal 4, when the liquid on the inner wall of the insulation ring 1 flows to the seal 4, it can flow towards the inner side of the electromagnetic coil 2 under the guidance of the flow guiding slope 43. This allows the seal 4 to not only play a sealing role but also a flow guiding role, further reducing the risk of liquid flowing to the outside of the electromagnetic coil 2, improving safety performance, and eliminating the need for additional flow guiding elements, thus saving costs.

[0074] In a preferred embodiment, such as Figure 2 As shown, the sealing element 4 has a sealing side 42 facing the inner wall of the insulation ring 1, and the sealing side 42 is provided with a sealing protrusion 421, which abuts against the inner wall of the insulation ring 1.

[0075] The sealing protrusion 421 abuts against the inner wall of the insulation ring 1 to form a seal, so that the sealing side 42 is partially in contact with the inner wall of the insulation ring 1 and partially separated from the inner wall of the insulation ring 1. In this way, while ensuring the sealing effect, the contact force between the sealing element 4 and the insulation ring 1 is appropriately reduced, so that the sealing element 4 maintains a good posture and positional stability, and avoids excessive deformation or displacement of the sealing element 4 under excessive extrusion pressure, which would affect the sealing performance.

[0076] Specifically, there are multiple sealing protrusions 421, and the sealing side 42 abuts against the inner wall of the insulation ring 1 through the sealing protrusions 421. The sealing protrusions 421 can be a raised structure, a protruding rib, or other structures, which are not limited here.

[0077] As a preferred embodiment of this utility model, such as Figure 1 , Figure 4 , Figure 5 As shown, the bottom wall 27 of the electromagnetic coil 2 has an opening 24 at its center for the temperature measuring element 23 to pass through. The opening 24 is surrounded by a water-blocking rib 241 that protrudes upwards. The bottom wall 27 of the electromagnetic coil 2 has a water-draining hole 25 located outside the water-blocking rib 241.

[0078] like Figure 4 As shown, the temperature measuring element 23 extends from bottom to top through the opening 24 into the interior of the electromagnetic coil 2, and is used to contact the bottom of the inner liner 3 to measure its temperature. The temperature measuring element 23 is equipped with electrical components and wiring harness.

[0079] Liquid flowing into the inner side of the electromagnetic coil 2 is guided by the inner wall of the electromagnetic coil 2 to converge towards the bottom center and is discharged downwards through the drain hole 25. The temperature measuring element 23 is located at the bottom center of the electromagnetic coil 2, while the drain hole 25 is located on the outside of the opening 24 (away from the center of the electromagnetic coil 2), that is, upstream of the opening 24 along the direction of liquid flow, so that the liquid can be discharged through the drain hole 25 before flowing to the opening 24. This prevents liquid from leaking through the opening 24, thereby avoiding the risk of damage to the electrical components due to water contact. At the same time, the outer periphery of the opening 24 is provided with an upwardly protruding water-blocking rib 241, which can further block the liquid, restricting the liquid to the outside of the water-blocking rib 241 and preventing it from flowing to the opening 24.

[0080] Furthermore, such as Figure 9 As shown, the electromagnetic cooking appliance also includes a base 6 located below the electromagnetic coil 2. The base 6 is provided with a retaining rib 61, which encloses a drainage area 62. The drainage area 62 has a drain outlet 63, and the downward projection of the drain hole 25 is located within the drainage area 62.

[0081] Some cooking appliances have internal fans to dissipate heat from the inner pot 3 or other components inside the pot body. The fan's air inlet is usually located at the base 6. Therefore, a strong airflow is generated at the bottom of the pot body. Liquid inside the electromagnetic coil 2 also drains through the drain hole 25 at the bottom of the pot body. This means there is a possibility that the liquid may be disturbed by the airflow and splash inside the base 6, or be pushed upwards again by the airflow. By setting up a baffle 61 to surround the drainage area 62, liquid dripping onto the base 6 can be blocked. Even if it is not drained through the drain outlet 63 in time, it will not spread from the drainage area 62 to other areas of the base 6. At the same time, the baffle 61 also separates the drain outlet 63 from the air inlet and outlet on the base 6, allowing the inner side to be used for drainage and the outer side for airflow, reducing the impact of airflow on liquid drainage.

[0082] Preferably, such as Figure 3 , Figure 4 As shown, the electromagnetic coil 2 is provided with a winding area 261 and a water-blocking rib 26. The water-blocking rib 26 is provided on the side wall 29 of the electromagnetic coil 2 and protrudes outward. The winding area 261 is located below the water-blocking rib 26.

[0083] The side wall 29 of the electromagnetic coil 2 is provided with outwardly protruding water-blocking ribs 26, so that when liquid flows to the outside of the side wall 29 of the electromagnetic coil 2, the water-blocking ribs 26 can block the liquid from flowing down the side wall 29 of the electromagnetic coil 2 into the winding area 261. Thus, the water-blocking ribs 26 form another layer of protection above the winding area 261, further reducing the risk of liquid flowing down the outer surface of the electromagnetic coil 2 to the electromagnetic coil 22.

[0084] Preferably, such as Figure 4 As shown, the outer edge of the water-blocking rib 26 is located outside the outer edge of the electromagnetic coil 22 on the side wall 29 of the electromagnetic coil 2, so that liquid dripping from the outer edge of the water-blocking rib 26 will not come into contact with the electromagnetic coil 22. For example, when the electromagnetic coil 22 is wound in a single layer on the side wall 29, the outer edge of the water-blocking rib 26 is located outside the outer edge of the electromagnetic coil 22. Similarly, when the electromagnetic coil 22 is wound in two or more layers on the side wall 29, the outer edge of the water-blocking rib 26 is located outside the outer edge of the outermost electromagnetic coil 22.

[0085] It should be noted that this utility model does not limit the type of cooking appliance. It can be an atmospheric pressure cooking appliance that cooks under normal pressure, such as an electric rice cooker, or a pressure cooking appliance that can cook under an environment greater than normal atmospheric pressure (including but not limited to micro-pressure and high pressure), such as an electric pressure cooker.

[0086] For pressure cooking appliances, when the internal air pressure of the inner pot 3 increases, the inner pot 3 will tend to move downward under the action of air pressure. Therefore, a support structure 11 needs to be set in the pot body to support the inner pot 3 and resist the downward pressure of the inner pot 3.

[0087] As a preferred embodiment of this utility model, such as Figure 1 , Figure 10 As shown, the inner liner 3 has an opening area located above the highest water level line, and the opening area has an outwardly protruding pressure-bearing structure 31. The side wall 29 of the insulation ring 1 is provided with an inwardly protruding support structure 11, and the pressure-bearing structure 31 is supported by the support structure 11.

[0088] The inner liner 3 has a pressure-bearing structure 31 at its opening. This pressure-bearing structure 31 abuts against the support structure 11 of the insulation ring 1 to form a pressure-bearing section. When the internal air pressure of the inner liner 3 increases, the inner liner 3 tends to move downwards under the pressure. The support structure 11 supports the pressure-bearing structure 31 to bear the downward pressure on the inner liner 3. This shifts the pressure-bearing position of the inner liner 3 from the traditional bottom to the opening. This avoids direct contact between the lower electromagnetic coil 2 and the inner liner 3, preventing problems such as coil melting, and also avoids excessive downward pressure on the electromagnetic coil 2 from damaging it. Furthermore, it ensures proper winding of the bottom of the electromagnetic coil 2, guaranteeing the integrity of the bottom coil winding.

[0089] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

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

[0091] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An electromagnetic cooking appliance, comprising a heat-insulating ring, an inner pot, and an electromagnetic coil, wherein the electromagnetic coil is located below the heat-insulating ring, an electromagnetic coil is wound around the outer surface of the electromagnetic coil, and the inner pot is placed inside the heat-insulating ring, characterized in that, The lower edge of the insulation ring is provided with a first fixing part, and the opening edge of the electromagnetic coil is provided with a second fixing part that cooperates with the first fixing part, so that the electromagnetic coil is fixedly connected to the insulation ring. The second fixing part is located inside the insulation ring. A sealing element is provided at the cooperation position of the first fixing part and the second fixing part, and the sealing element seals the gap between the electromagnetic coil and the insulation ring.

2. The electromagnetic cooking appliance according to claim 1, characterized in that, The first fixing part includes a fixing flange extending toward the interior of the heat preservation ring, and the second fixing part includes a mating flange extending outward from the opening edge of the electromagnetic coil. The mating flange is located above the fixing flange and rotatably engages with the fixing flange. The electromagnetic cooking appliance also includes a locking member, which is located above the mating flange and engages with the fixing flange to clamp and fix the mating flange. The sealing member is located above the locking member or between the mating flange and the fixing flange.

3. The electromagnetic cooking appliance according to claim 2, characterized in that, The sealing element is fixed to the upper surface of the locking element; or, The sealing element and the locking element are integrally formed.

4. The electromagnetic cooking appliance according to claim 2, characterized in that, The sealing element is located on the upper side of the locking element, and the sealing element abuts against the inner wall of the insulation ring. The sealing element has a sealing lip, which is located between the outer periphery of the locking element and the inner wall of the insulation ring.

5. The electromagnetic cooking appliance according to claim 2, characterized in that, The seal is located on the upper side of the locking member, and the seal has a guide side facing the inside of the insulation ring. The guide side is provided with a guide slope that extends downward towards the inside of the insulation ring.

6. The electromagnetic cooking appliance according to claim 1, characterized in that, The sealing element has a sealing side facing the inner wall of the insulation ring, and the sealing side is provided with a sealing protrusion that abuts against the inner wall of the insulation ring.

7. The electromagnetic cooking appliance according to claim 1, characterized in that, The bottom wall of the electromagnetic coil has an opening at its center for the temperature measuring element to pass through. The opening is surrounded by upward-protruding water-blocking ribs. The bottom wall of the electromagnetic coil has a water-draining hole located outside the water-blocking ribs.

8. The electromagnetic cooking appliance according to claim 7, characterized in that, The electromagnetic cooking appliance also includes a base located below the electromagnetic coil. The base is provided with a retaining rib, which encloses a drainage area. The drainage area has a drain outlet, and the downward projection of the drain hole is located within the drainage area.

9. The electromagnetic cooking appliance according to claim 1, characterized in that, The electromagnetic coil is provided with a winding area and a water-blocking rib. The water-blocking rib is provided on the side wall of the electromagnetic coil and protrudes outward. The winding area is located below the water-blocking rib.

10. The electromagnetic cooking appliance according to any one of claims 1-9, characterized in that, The inner liner has an opening area located above the highest water level line, the opening area has an outwardly protruding pressure-bearing structure, and the side wall of the insulation ring is provided with an inwardly protruding support structure, the pressure-bearing structure being supported by the support structure.

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