Electromagnetic cooking appliance

Abstract

The utility model discloses an electromagnetic cooking utensil, including shell and middle ring, the inside of shell is provided with electromagnetic wire disc, the below of electromagnetic wire disc is provided with installation shell, the downside of installation shell is provided with circuit board installation cavity and fan installation cavity, the upside of installation shell is provided with the first fixed column for with electromagnetic wire disc's bottom surface fixed connection, the edge of installation shell is provided with the second fixed column that extends upwards, and the second fixed column is fixedly connected with the middle ring, and the height of first fixed column is less than the height of second fixed column. Installation shell is directly connected with electromagnetic wire disc through first fixed column, makes the distance between installation shell and electromagnetic wire disc easier control, and can effectively reduce the distance between electromagnetic wire disc bottom surface and installation shell. The second fixed column is used for with the fastening connection of middle ring, makes installation shell and middle ring also form the connection relation, realizes the common fixation of electromagnetic wire disc, installation shell and middle ring three, has improved the installation stability of installation shell greatly.

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] As a control element of cooking appliances, the circuit board is an essential component. It is usually mounted vertically at the rear of the pot body via a circuit board bracket. At the same time, a cooling fan is installed below the circuit board bracket to blow cooling air upwards to dissipate heat from the circuit board.

[0003] However, this arrangement results in the circuit board support and circuit board occupying a significant portion of the pot's radial space, increasing the pot's radial dimensions and hindering the trend towards miniaturization. Furthermore, when the lid is opened, condensation on the lid flows to the rear of the pot's upper surface, posing a risk of this liquid entering the pot's interior. This location corresponds to the circuit board's position, increasing the risk of short circuits or even damage upon contact with water.

[0004] Therefore, in the prior art, some cooking appliances place the circuit board support and circuit board at the bottom of the pot, below the inner pot. However, the circuit board support is generally fixedly connected to the bottom shell of the pot, making it difficult to control the distance between the circuit board support and the upper heating element. The distance between the two is often large, which wastes the space at the bottom of the pot and increases the size of the pot in the height direction, thus restricting the miniaturization of the whole machine.

[0005] If the circuit board bracket is fixed to the heating component above, the installation stability of the circuit board bracket will be greatly affected. During transportation and drop tests, the circuit board bracket is prone to significant shaking, which will affect the connection stability of the circuit board and the installation stability of the fan. Utility Model Content

[0006] This utility model provides an electromagnetic cooking appliance to solve the problems of difficulty in controlling the distance between the circuit board bracket and the heating element above when the circuit board bracket is placed at the bottom of the pot, resulting in a large overall height and poor installation stability of the circuit board bracket.

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

[0008] An electromagnetic cooking appliance includes a housing and a central ring disposed above the housing. An electromagnetic coil is disposed inside the housing. A mounting shell is disposed below the electromagnetic coil. A circuit board mounting cavity and a fan mounting cavity are disposed on the lower side of the mounting shell. A first fixing post is disposed on the upper side of the mounting shell for fixed connection with the bottom surface of the electromagnetic coil. A second fixing post extending upward is disposed on the edge of the mounting shell. The second fixing post is fixedly connected to the central ring. The height of the first fixing post is less than the height of the second fixing post.

[0009] In this invention, the mounting shell is fixedly connected to the electromagnetic coil via a first fixing post on its upper side. This direct connection between the first fixing post and the electromagnetic coil makes it easier to control the distance between them. For example, after they are fixed, the distance between the bottom surface of the electromagnetic coil and the upper surface of the mounting shell is the height of the first fixing post. Furthermore, the relatively small height of the first fixing post effectively reduces the distance between the bottom surface of the electromagnetic coil and the mounting shell, optimizing the spatial layout at the bottom of the pot, improving space utilization and structural compactness, and effectively reducing the overall height of the machine, thus achieving a miniaturized structural design.

[0010] Furthermore, the edge of the mounting housing is equipped with a second fixing post extending upwards for secure connection with the middle ring. This creates a connection between the mounting housing and the middle ring, achieving joint fixation of the electromagnetic coil, mounting housing, and middle ring. This significantly improves the installation stability of the mounting housing, reduces the possibility of shaking, and ensures reliable circuit board connection. The second fixing post is located on the outer side of the recessed portion of the electromagnetic coil; therefore, its greater height does not affect the distance between the bottom surface of the electromagnetic coil and the mounting housing, still achieving the effect of reducing the gap between the electromagnetic coil and the mounting housing. The greater height also facilitates the fixing with the middle ring, simplifying the structural design and reducing the difficulty of fixing.

[0011] A temperature measuring component is provided at the center of the bottom wall of the electromagnetic coil. A portion of the mounting shell is recessed to form a clearance groove on the upper side of the mounting shell. The clearance groove corresponds vertically to the temperature measuring component, so as to form a clearance space between the clearance groove and the electromagnetic coil for the wire harness to avoid the temperature measuring component. The first fixing post is located in the clearance groove.

[0012] In this design, the temperature sensing component contacts the pot above the electromagnetic coil to detect its temperature in real time. Simultaneously, the temperature sensing component is connected to a wiring harness for electrical connection to the control unit. The clearance groove on the upper surface of the mounting housing corresponds vertically to the temperature sensing component, increasing the distance between them and providing ample space for the wiring harness. This allows the harness to extend and be arranged more neatly and orderly within the space, ensuring reliable connection. It also prevents the wiring harness from bending excessively due to limited space, which could lead to messy wiring, tangling, or reduced lifespan. Furthermore, an elastic element is located on the lower side of the temperature sensing component, allowing it to float up and down under its influence, maintaining a good fit with the pot. This elastic element is also located within the clearance groove, further increasing its deformation space. This ensures that the temperature sensing component has sufficient room to move even with a reduced clearance. Furthermore, the first fixing post is located within the clearance groove, so that the first fixing post and the mounting shell at least partially overlap in the height direction. That is, the height of the upper edge of the first fixing post protruding from the upper edge of the mounting shell is reduced, which can further reduce the distance between the bottom surface of the electromagnetic coil and the upper surface of the mounting shell, making their positions more compact.

[0013] The clearance groove forms a recessed platform on the lower side of the mounting housing. The fan mounting cavity and the circuit board mounting cavity are positioned opposite each other on both sides of the recessed platform. The recessed platform forms a connecting channel between the fan mounting cavity and the circuit board mounting cavity. The bottom surface of the recessed platform is lower than the top wall of the fan mounting cavity and the circuit board mounting cavity.

[0014] In this design, a portion of the mounting housing is recessed, forming a clearance groove on the upper side and a recessed platform on the lower side. The fan mounting cavity and the circuit board mounting cavity are located opposite each other on either side of the recessed platform. The cooling airflow in the fan mounting cavity flows laterally into the circuit board mounting cavity through the connecting channel formed by the recessed platform, dissipating heat from the circuit board. The opposing cavities extend the flow path of the cooling airflow, thereby prolonging the contact time between the cooling airflow and the circuit board and improving the heat dissipation effect. It also facilitates the placement of an exhaust port at the circuit board mounting cavity, allowing outside air and the cooling airflow from the lower side of the mounting housing to form a circulating airflow between the fan and the circuit board, improving cooling efficiency. The lower height of the recessed platform results in a smaller flow area for the connecting channel, effectively increasing the flow velocity and air pressure of the cooling airflow entering the circuit board mounting cavity. This causes the airflow to more violently impact the circuit board, creating a surrounding effect upon collision and improving the contact effect between the airflow and the circuit board. The higher top walls of the fan mounting cavity and the circuit board mounting cavity result in a greater overall height for both cavities, providing ample installation space for the fan and the circuit board.

[0015] The upper side of the mounting shell has a water-receiving area, and an avoidance groove is located within the water-receiving area. The groove wall of the avoidance groove is inclined to form a water-guiding transition surface, and a water-draining hole is provided in the avoidance groove.

[0016] In this design, the recessed design of the clearance groove lowers its position, allowing liquid dripping from the upper electromagnetic coil to naturally collect within it. Therefore, a drain hole is incorporated into the clearance groove, enabling it to function as both a water collection and drainage area. The water-guiding transition surface guides liquid dripping onto the water-receiving area of ​​the mounting shell, directing it towards the clearance groove and draining through the drain hole. This integration of installation and drainage functions simplifies the bottom structure of the pot and reduces costs.

[0017] The clearance groove has a main body and a water collection trough that is recessed relative to the main body. The first fixing post is set on the main body, and the water leakage hole is located in the water collection trough.

[0018] In this design, the water collection trough is lowered within the clearance groove, making its position lower than the main body. This facilitates liquid accumulation within the trough, allowing it to drain through the drain hole and completely remove liquid from the surface of the mounting housing, reducing liquid buildup. Furthermore, the main body is higher than the water collection trough, and the first fixing post is located on the main body, ensuring its position is also higher than the drain hole. This prevents liquid in the trough from contacting the connecting components at the first fixing post, avoiding prolonged immersion and potential rust or damage, thus ensuring reliable connection.

[0019] The upper side of the mounting shell has a water receiving area with a water leakage hole. The lower side of the mounting shell has a downward-extending water-guiding rib that surrounds the outer periphery of the water leakage hole.

[0020] In this design, the water-guiding ribs form a water-guiding channel on the lower side of the mounting housing. As the liquid in the drain hole flows downwards, it is restricted by the water-guiding ribs and flows along the water-guiding channel, improving the guiding effect on the liquid. This causes the liquid to drip downwards from the lower end of the water-guiding ribs, thus lowering the dripping point. On the one hand, this reduces the impact of the airflow from the fan on the liquid on the liquid, preventing the liquid from being blown by the airflow to the circuit board. On the other hand, it also makes the liquid drip downwards, reducing the height from which it splashes upwards when it drips onto the table or base.

[0021] The fan mounting cavity and the circuit board mounting cavity are arranged horizontally. A wind-blocking rib is provided between the fan mounting cavity and the circuit board mounting cavity. The wind-blocking rib forms a connecting channel between the fan mounting cavity and the circuit board mounting cavity. The water-guiding rib is located on the outside of the connecting channel.

[0022] In this design, the baffle ribs form a connecting channel, linking the fan mounting cavity and the circuit board mounting cavity. This allows the cooling airflow from the fan to flow through the channel into the circuit board mounting cavity for heat dissipation. The baffle ribs restrict the cooling airflow, ensuring it flows within the connecting channel and guaranteeing efficient airflow into the circuit board mounting cavity, thus ensuring cooling efficiency and preventing airflow diffusion that would reduce the airflow reaching the circuit board. Simultaneously, the water-guiding ribs, located outside the connecting channel, further reduce the impact of the cooling airflow on liquid dripping from the water-guiding ribs, decreasing the possibility of liquid being blown into the circuit board mounting cavity by the cooling airflow.

[0023] The wind deflector located on at least one side of the connecting channel extends obliquely so that the width of the connecting channel gradually decreases in the direction from the fan mounting cavity to the circuit board mounting cavity.

[0024] In this design, the width of the connecting channel gradually decreases towards the circuit board mounting cavity, causing the cooling airflow to gradually converge and the air pressure to gradually increase as it flows into the circuit board mounting cavity. This allows the cooling airflow to enter the circuit board mounting cavity at a faster flow rate. The faster-flowing cooling airflow can contact the circuit board and flow along the surface of the circuit board, thereby surrounding the circuit board and increasing the contact area between the cooling airflow and the circuit board, thus improving the heat exchange efficiency.

[0025] The central ring is provided with a downwardly extending mounting post, and the edge of the electromagnetic coil is provided with a fastening part. The mounting post is fastened to the second fixing post to clamp and fix the fastening part.

[0026] In this design, the mounting shell, the middle ring, and the electromagnetic coil are connected to each other, thus achieving joint fixation of the electromagnetic coil, mounting shell, and middle ring. This greatly improves the installation stability of the mounting shell, reduces the possibility of shaking, and ensures reliable connection of the circuit board.

[0027] The fastening part is provided with a plug groove, and the mounting post and / or the second fixing post are plugged into the plug groove.

[0028] In this design, the insertion slot can interlock with the mounting post and / or the second fixing post. This ensures the clamping and fixing effect and stability of the mounting post and the second fixing post on the fastening part, improving the fixing effect. On the other hand, it also plays a positioning role in the assembly of the three components, making the position of the mounting shell and the electromagnetic coil more stable, reducing assembly difficulty, and improving assembly efficiency. Attached Figure Description

[0029] 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:

[0030] Figure 1 This is a cross-sectional view of the pot body of an electromagnetic cooking appliance according to one embodiment of the present invention;

[0031] Figure 2 for Figure 1 A magnified view of area A in the middle;

[0032] Figure 3 This is a cross-sectional view of the pot body of an electromagnetic cooking appliance according to one embodiment of the present invention from another perspective.

[0033] Figure 4 for Figure 3 A magnified view of area B in the middle;

[0034] Figure 5 This is an exploded view of the pot body of an electromagnetic cooking appliance according to one embodiment of the present invention.

[0035] Figure 6 This is a schematic diagram of the upper side of the mounting shell according to one embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the lower side of the mounting shell according to one embodiment of the present invention;

[0037] Figure 8 This is a bottom view of the pot body structure according to one embodiment of the present invention.

[0038] in:

[0039] 1. Outer casing;

[0040] 2. Middle Ring Road; 21. Mounting Columns;

[0041] 3. Electromagnetic coil; 31. Fastening part; 311. Insertion groove; 32. Drip nozzle;

[0042] 4. Mounting shell; 41. Fan mounting cavity; 42. Circuit board mounting cavity; 421. Mounting plane; 43. First fixing post; 44. Second fixing post; 45. Clearance groove; 451. Water guiding transition surface; 452. Body; 453. Water collection trough; 454. Leakage hole; 455. Water guiding rib; 456. Water guiding slope; 46. Settled platform; 47. Connecting channel; 48. Water receiving area; 482. Enclosure wall; 49. Windbreak rib;

[0043] 5 bases;

[0044] 6 fans;

[0045] 7 circuit boards;

[0046] 8 temperature sensing components;

[0047] 9. Elastic components. Detailed Implementation

[0048] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] like Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, an electromagnetic cooking appliance includes a housing 1 and a central ring 2 disposed above the housing 1. An electromagnetic coil 3 is disposed inside the housing 1. A mounting shell 4 is disposed below the electromagnetic coil 3. A circuit board mounting cavity 42 and a fan mounting cavity 41 are disposed on the lower side of the mounting shell 4. A first fixing post 43 is disposed on the upper side of the mounting shell 4 for fixed connection with the bottom surface of the electromagnetic coil 3. A second fixing post 44 extending upward is disposed on the edge of the mounting shell 4. The second fixing post 44 is fixedly connected to the central ring 2. The height of the first fixing post 43 is less than the height of the second fixing post 44.

[0054] This utility model does not limit the fixing method of the first fixing post 43 and the electromagnetic coil 3. In one embodiment, such as... Figure 1 As shown, the bottom surface of the electromagnetic coil 3 is provided with fixing holes. The electromagnetic coil 3 and the first fixing post 43 are fastened together by screws or other fasteners passing through the fixing holes. Of course, the two can also be fixedly connected in other ways, such as snap-fit ​​connection, etc., which are not limited here.

[0055] It is understood that the electromagnetic cooking appliance also includes a fan 6 disposed within the fan mounting cavity 41, and a circuit board 7 disposed within the circuit board mounting cavity 42. Specifically, as... Figure 1 , Figure 3 , Figure 7 As shown, the electromagnetic cooking appliance also includes a base 5 located below the outer casing 1. A mating wall extending towards the base 5 is provided on the lower side of the mounting shell 4. The mating wall and the base shell together form a fan mounting cavity 41 and a circuit board mounting cavity 42. Further, as... Figure 3 , Figure 5 As shown, the circuit board 7 has a connection side with a circuit structure. The connection side is arranged facing upwards to prevent liquid that drips onto the table from rebounding and splashing upwards and then re-entering the base 5 through the holes on the base 5, making contact with the connection side of the circuit board 7 and causing damage to the circuit structure.

[0056] Specifically, such as Figure 3 As shown, the axis of fan 6 is set vertically to reduce the space occupied by fan 6 in the height direction.

[0057] It should be noted that the present invention does not limit the purpose of the fan 6. It is at least used to blow cooling air into the circuit board mounting cavity 42 for heat dissipation of the circuit board 7. Of course, by setting an air outlet or a guide channel in the mounting shell 4, some airflow can be directed to the top of the mounting shell 4, that is, between the electromagnetic coil 3 and the mounting shell 4, so that part of the airflow from the fan 6 is used to dissipate heat on the circuit board 7 and part of the airflow is used to dissipate heat on the electromagnetic coil 3.

[0058] In this invention, the mounting shell 4 is fixedly connected to the electromagnetic coil 3 via a first fixing post 43 on its upper side. This direct connection between the first fixing post 43 and the electromagnetic coil 3 makes it easier to control the distance between them. For example, after they are fixed, the distance between the bottom surface of the electromagnetic coil 3 and the upper surface of the mounting shell 4 is the height of the first fixing post 43. Furthermore, the relatively small height of the first fixing post 43 effectively reduces the distance between the bottom surface of the electromagnetic coil 3 and the mounting shell 4, optimizing the spatial layout of the bottom of the pot body, improving space utilization and structural compactness, and effectively reducing the overall height of the machine, thus achieving a miniaturized structural design.

[0059] Furthermore, the edge of the mounting shell 4 is provided with an upwardly extending second fixing post 44 for fastening to the middle ring 2, thus forming a connection between the mounting shell 4 and the middle ring 2. This achieves joint fixation of the electromagnetic coil 3, the mounting shell 4, and the middle ring 2, greatly improving the installation stability of the mounting shell 4, reducing the possibility of shaking, and ensuring reliable connection of the circuit board 7. The second fixing post 44 is located on the outer side of the recessed portion of the electromagnetic coil 3, so its greater height will not affect the distance between the bottom surface of the electromagnetic coil 3 and the mounting shell 4, still achieving the effect of reducing the gap between the electromagnetic coil 3 and the mounting shell 4. The greater height also facilitates the fixing with the middle ring 2, simplifying the structural design and reducing the difficulty of fixing.

[0060] It is understood that the purpose of this utility model is to reduce the distance between the mounting shell 4 and the bottom surface of the electromagnetic coil 3. However, the distance between the mounting shell 4 and the bottom surface of the electromagnetic coil 3 cannot be zero, that is, the two cannot be in contact, so as to avoid excessive heat transfer from the electromagnetic coil 3 to the mounting shell 4.

[0061] Preferably, such as Figure 1 As shown, the second fixing post 44 is located on the rear side of the electromagnetic coil 3 (the side away from the user when the user operates the cooking appliance).

[0062] As a preferred embodiment of this utility model, such as Figure 3 , Figure 4 As shown, a temperature measuring component 8 is provided at the center of the bottom wall of the electromagnetic coil 3. A portion of the mounting shell 4 is recessed to form a clearance groove 45 on the upper side of the mounting shell 4. The clearance groove 45 corresponds vertically to the temperature measuring component 8 to form a clearance space between the clearance groove 45 and the electromagnetic coil 3 for the wire harness of the temperature measuring component 8 to pass. The first fixing post 43 is located in the clearance groove 45.

[0063] The temperature sensing component 8 is used to contact the pot above the electromagnetic coil 3 to detect the pot's temperature in real time. Simultaneously, the temperature sensing component 8 is connected to a wiring harness for electrical connection with the control unit. The clearance groove 45 on the upper surface of the mounting housing 4 corresponds vertically to the temperature sensing component 8, increasing the distance between them and providing ample space for the wiring harness. This allows the wiring harness to extend and be arranged more neatly and orderly within the space, ensuring reliable connection. It also prevents the wiring harness from bending excessively due to limited space, which could lead to messy wiring, tangling, or affect the lifespan of the wiring harness. Furthermore, an elastic element 9 is provided on the lower side of the temperature sensing component 8, allowing it to float up and down under the action of the elastic element 9, thus maintaining a good fit with the pot. The elastic element 9 is also located within the clearance groove 45, increasing its deformation space and ensuring that the temperature sensing component 8 still has sufficient room to move even with a reduced gap. Furthermore, the first fixing post 43 is located within the clearance groove 45, so that the first fixing post 43 and the mounting shell 4 at least partially overlap in the height direction. That is, the height of the upper edge of the first fixing post 43 protruding from the upper edge of the mounting shell 4 is reduced, which can further reduce the distance between the bottom surface of the electromagnetic coil 3 and the upper surface of the mounting shell 4, making their positions more compact.

[0064] Specifically, such as Figure 4 As shown, the temperature measuring component 8 includes a temperature measuring cover and a wire harness disposed inside the temperature measuring cover. The temperature measuring cover extends from bottom to top into the electromagnetic coil 3 and contacts the center of the bottom wall of the pot. The elastic element 9 is a spring disposed below the temperature measuring cover. The spring exerts an upward pushing force on the temperature measuring cover to ensure good contact between the temperature measuring cover and the pot.

[0065] Furthermore, such as Figure 3 , Figure 4 As shown, the clearance groove 45 forms a recessed platform 46 on the lower side of the mounting shell 4. The fan mounting cavity 41 and the circuit board mounting cavity 42 are disposed opposite to each other on both sides of the recessed platform 46. A connecting channel 47 is formed between the recessed platform 46 and the base 5 below the shell 1, connecting the fan mounting cavity 41 and the circuit board mounting cavity 42. The bottom surface of the recessed platform 46 is lower than the top wall of the fan mounting cavity 41 and the circuit board mounting cavity 42.

[0066] In the existing technology, the cooling fan 6 of some models blows air upwards, so that the airflow flows upwards to dissipate heat from the circuit board 7. However, it is difficult to set an air outlet structure at the opening above the pot body, which makes it difficult for the airflow to be discharged, and thus it is difficult to form an internal and external circulation airflow, resulting in poor cooling effect.

[0067] In this embodiment, a portion of the mounting housing 4 is recessed, forming an avoidance groove 45 on the upper side and a recessed platform 46 on the lower side. The fan mounting cavity 41 and the circuit board mounting cavity 42 are located opposite each other on both sides of the recessed platform 46. The cooling airflow in the fan mounting cavity 41 flows laterally into the circuit board mounting cavity 42 through the connecting channel 47 formed by the recessed platform 46 to dissipate heat from the circuit board 7. The two opposing cavities extend the flow path of the cooling airflow, thereby prolonging the contact time between the cooling airflow and the circuit board 7 and improving the heat dissipation effect. It also facilitates the placement of an exhaust port at the circuit board mounting cavity 42, allowing outside air and the cooling airflow from the lower side of the mounting housing 4 to form a circulating airflow between the fan 6 and the circuit board 7, improving cooling efficiency. The lower height of the recessed platform 46 results in a smaller flow area in the connecting channel 47, effectively increasing the flow velocity and air pressure of the cooling airflow entering the circuit board mounting cavity 42. This causes the airflow to more violently impact the circuit board 7, forming a surrounding effect after collision, thus improving the contact effect between the airflow and the circuit board 7. The top walls of the fan mounting cavity 41 and the circuit board mounting cavity 42 are positioned relatively high, resulting in a greater height for the two cavities and thus providing ample installation space for the fan 6 and the circuit board 7.

[0068] Furthermore, the horizontally flowing cooling airflow flows from one end of the base 5 to the other, which facilitates the opening of air inlets and outlets at the bottom of the base shell or outer shell 1, allowing external airflow to enter smoothly and in a timely manner, and the internal cooling airflow to be smoothly discharged from the bottom after contacting the circuit board 7, which helps to form a circulating airflow.

[0069] Specifically, such as Figure 3 As shown, the fan mounting cavity 41 is located on the front side of the pot body (the side facing the user), and the circuit board mounting cavity 42 is located on the rear side of the pot body (the side away from the user).

[0070] Specifically, such as Figure 7 As shown, the top walls of both the fan mounting cavity 41 and the circuit board mounting cavity 42 are provided with mounting planes 421, and the bottom surface of the recessed portion 46 is lower than the mounting planes 421.

[0071] As a preferred embodiment of this implementation, such as Figure 6 As shown, the upper side of the mounting shell 4 has a water receiving area 48, and the avoidance groove 45 is located in the water receiving area 48. The groove wall of the avoidance groove 45 is inclined to form a water guiding transition surface 451, and a water leakage hole 454 is provided in the avoidance groove 45.

[0072] Due to the recessed design of the clearance groove 45, its lower position allows liquid dripping from the upper electromagnetic coil 3 to naturally collect within it. Therefore, a drain hole 454 is provided within the clearance groove 45, enabling it to function as both a water collection and drainage area. The water-guiding transition surface 451 guides liquid dripping onto the water-receiving area 48 on the upper surface of the mounting shell 4, allowing it to flow into the clearance groove 45 and drain through the drain hole 454. This integration of installation and drainage functions in the mounting shell 4 simplifies the bottom structure of the pot and saves costs.

[0073] like Figure 6 As shown, the top wall of the circuit board mounting cavity 42 is provided with a water-guiding slope 456, and the water-receiving area 48 is located at the bottom of the water-guiding slope 456, so that the water-guiding slope 456 can guide liquid into the water-receiving area 48. Figure 4 As shown, the bottom surface of the electromagnetic coil 3 is provided with a drip nozzle 32, and the downward projection of the drip nozzle 32 is located in the relief groove 45 or the water guiding transition surface 451.

[0074] like Figure 6 As shown, the upper surface of the mounting shell 4 is provided with a surrounding wall 482, which encloses a water-receiving area 48.

[0075] Water-conducting transition surface 451 can be Figure 4 The inclined surface shown can also be a circular arc surface or other irregular curved surface, as long as it gradually slopes downward in the direction of the bottom of the relief groove 45 and can guide the liquid to flow into the relief groove 45. There is no limitation here.

[0076] Meanwhile, the slopes of the water-guiding transition surfaces 451 on both sides of the clearance groove 45 (the side closer to the fan mounting cavity 41 and the side closer to the circuit board mounting cavity 42) can be the same or different, and no limitation is made here.

[0077] Furthermore, such as Figure 6 As shown, the clearance groove 45 has a body 452 and a water collection trough 453 that is recessed relative to the body 452. The first fixing post 43 is disposed on the body 452, and the water leakage hole 454 is located in the water collection trough 453.

[0078] The water collection trough 453 is recessed within the clearance groove 45, making its position lower than the main body 452. This facilitates the accumulation of liquid within the trough 453, which then drains through the drain hole 454, helping to completely drain liquid from the upper surface of the mounting housing 4 and reducing liquid accumulation. Furthermore, the main body 452 is higher than the water collection trough 453, and the first fixing post 43 is located on the main body 452. The position of the first fixing post 43 is also higher than the drain hole 454, making it difficult for liquid in the water collection trough 453 to contact the connecting parts at the first fixing post 43. This prevents the connecting parts from being soaked in liquid for extended periods, thus avoiding rust or damage and ensuring connection reliability.

[0079] As a preferred embodiment of this utility model, such as Figure 7 As shown, the upper side of the mounting shell 4 has a water receiving area 48, and a water leakage hole 454 is provided in the water receiving area 48. The lower side of the mounting shell 4 is provided with a downwardly extending water guiding rib 455, which surrounds the outer periphery of the water leakage hole 454.

[0080] The water-guiding rib 455 forms a water-guiding channel on the lower side of the mounting shell 4. As the liquid in the drain hole 454 flows downward, it is restricted by the water-guiding rib 455 and flows along the water-guiding channel, improving the guiding effect of the liquid. This causes the liquid to drip downward at a lower position below the water-guiding rib 455. On the one hand, this reduces the impact of the airflow of the fan 6 on the liquid under the mounting shell 4, preventing the liquid from being blown by the airflow and flowing to the circuit board 7. On the other hand, it also makes the liquid drip downward, reducing the height at which the liquid splashes upward when it drips onto the table or base 5.

[0081] Furthermore, such as Figure 7 As shown, the fan mounting cavity 41 and the circuit board mounting cavity 42 are arranged horizontally. A wind baffle 49 is provided between the fan mounting cavity 41 and the circuit board mounting cavity 42. The wind baffle 49 forms a connecting channel 47 that connects the fan mounting cavity 41 and the circuit board mounting cavity 42. The water guiding rib 455 is located on the outside of the connecting channel 47.

[0082] The baffle ribs 49 form a connecting channel 47, connecting the fan mounting cavity 41 and the circuit board mounting cavity 42. This allows the cooling airflow from the fan 6 to flow through the connecting channel 47 into the circuit board mounting cavity 42, dissipating heat from the circuit board 7. The baffle ribs 49 restrict the cooling airflow, ensuring it flows within the connecting channel 47 and guaranteeing the efficiency of airflow into the circuit board mounting cavity 42. This ensures cooling efficiency and prevents airflow diffusion, which would reduce the airflow reaching the circuit board 7. Simultaneously, the water-guiding ribs 455, located outside the connecting channel 47, further reduce the impact of the cooling airflow on liquid dripping from the water-guiding ribs 455, decreasing the possibility of liquid being blown into the circuit board mounting cavity 42 by the cooling airflow.

[0083] Furthermore, such as Figure 7 , Figure 8 As shown, the wind deflector 49 located on at least one side of the connecting channel 47 extends obliquely so that the width of the connecting channel 47 gradually decreases in the direction from the fan mounting cavity 41 to the circuit board mounting cavity 42.

[0084] The width of the connecting channel 47 gradually decreases in the direction close to the circuit board mounting cavity 42, so that the cooling airflow gradually converges and the air pressure gradually increases as it flows into the circuit board mounting cavity 42. This allows it to enter the circuit board mounting cavity 42 at a faster flow rate. The faster flow rate of the cooling airflow can contact the circuit board 7 and flow along the surface of the circuit board 7, thereby surrounding the circuit board 7, increasing the contact area between the cooling airflow and the circuit board 7, and improving the heat exchange efficiency.

[0085] In a preferred embodiment of this utility model, such as Figure 1 , Figure 2 As shown, the middle ring 2 is provided with a downwardly extending mounting post 21, and the edge of the electromagnetic coil 3 is provided with a fastening part 31. The mounting post 21 is fastened to the second fixing post 44 to clamp and fix the fastening part 31.

[0086] The mounting shell 4, the middle ring 2, and the electromagnetic coil 3 are connected to each other, which can fix the electromagnetic coil 3, the mounting shell 4, and the middle ring 2 together, greatly improving the installation stability of the mounting shell 4, reducing the possibility of the mounting shell 4 shaking, and ensuring the reliable connection of the circuit board 7.

[0087] Specifically, such as Figure 2As shown, the second fixing post 44, the mounting post 21, and the fastening part 31 are all provided with fixing holes. Screws or other fasteners are passed through these fixing holes to secure the three components together. Under pre-tightening force, the mounting post 21 and the second fixing post 44 clamp the fastening part 31. This achieves joint fixation of the three components at this location, improving connection stability and reliability. Furthermore, the cooperation of the three components at this point enhances the positional accuracy of each component, reduces assembly errors, and establishes a correlation between the connections of each component, significantly improving the overall internal structural stability of the machine. Of course, the mounting post 21 and the second fixing post 44 can also be fastened together in other ways to clamp the fastening part 31 and the fixing wall; this is not limited here.

[0088] Furthermore, such as Figure 2 As shown, the fastening part 31 is provided with a plug groove 311, and the mounting post 21 or the second fixing post 44 is plugged into the plug groove 311.

[0089] The insertion slot 311 can be inserted with the mounting post 21 and / or the second fixing post 44, which on the one hand ensures the clamping and fixing effect and stability of the fastening part 31 by the mounting post 21 and the second fixing post 44, and improves the fixing effect. On the other hand, it also plays a positioning role in the assembly of the three, making the position of the mounting shell 4 and the electromagnetic coil 3 more stable, reducing the assembly difficulty and improving the assembly efficiency.

[0090] like Figure 2 As shown, the insertion groove 311 has an upward opening for insertion into the mounting post 21. Alternatively, an insertion groove 311 can be provided on the lower side of the fastening part 31 for insertion into the second fixing post 44, or insertion grooves 311 can be provided on both the upper and lower sides of the fastening part 31 for insertion into the mounting post 21 and the second fixing post 44 respectively. No limitation is made here.

[0091] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0092] 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.

[0093] 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 housing and a central ring disposed above the housing, wherein an electromagnetic coil is disposed inside the housing, characterized in that, A mounting shell is provided below the electromagnetic coil. The lower side of the mounting shell is provided with a circuit board mounting cavity and a fan mounting cavity. The upper side of the mounting shell is provided with a first fixing post for fixed connection with the bottom surface of the electromagnetic coil. The edge of the mounting shell is provided with an upwardly extending second fixing post. The second fixing post is fixedly connected to the middle ring. The height of the first fixing post is less than the height of the second fixing post.

2. The electromagnetic cooking appliance according to claim 1, characterized in that, A temperature measuring component is provided at the center of the bottom wall of the electromagnetic coil. A portion of the mounting shell is recessed to form a clearance groove on the upper side of the mounting shell. The clearance groove corresponds vertically to the temperature measuring component to form a clearance space between the clearance groove and the electromagnetic coil for the wire harness of the temperature measuring component to avoid the wire harness. The first fixing post is located in the clearance groove.

3. The electromagnetic cooking appliance according to claim 2, characterized in that, The clearance groove forms a recessed platform on the lower side of the mounting housing. The fan mounting cavity and the circuit board mounting cavity are disposed opposite each other on both sides of the recessed platform. The recessed platform forms a connecting channel connecting the fan mounting cavity and the circuit board mounting cavity. The bottom surface of the recessed platform is lower than the top wall of the fan mounting cavity and the circuit board mounting cavity.

4. The electromagnetic cooking appliance according to claim 2, characterized in that, The upper side of the mounting shell has a water-receiving area, the avoidance groove is located in the water-receiving area, the groove wall of the avoidance groove is inclined to form a water-guiding transition surface, and a water leakage hole is provided in the avoidance groove.

5. The electromagnetic cooking appliance according to claim 4, characterized in that, The clearance groove has a body and a water collection trough that is recessed relative to the body. The first fixing post is disposed on the body, and the water leakage hole is located in the water collection trough.

6. The electromagnetic cooking appliance according to claim 1, characterized in that, The upper side of the mounting shell has a water-receiving area, and a water-draining hole is provided in the water-receiving area. The lower side of the mounting shell is provided with a downwardly extending water-guiding rib, which surrounds the outer periphery of the water-draining hole.

7. The electromagnetic cooking appliance according to claim 6, characterized in that, The fan mounting cavity and the circuit board mounting cavity are arranged laterally. A wind-blocking rib is provided between the fan mounting cavity and the circuit board mounting cavity. The wind-blocking rib forms a connecting channel between the fan mounting cavity and the circuit board mounting cavity. The water-guiding rib is located on the outside of the connecting channel.

8. The electromagnetic cooking appliance according to claim 7, characterized in that, The windbreak rib located on at least one side of the connecting channel extends obliquely so that the width of the connecting channel gradually decreases in the direction from the fan mounting cavity to the circuit board mounting cavity.

9. The electromagnetic cooking appliance according to claim 1, characterized in that, The middle ring is provided with a downwardly extending mounting post, and the edge of the electromagnetic coil is provided with a fastening part. The mounting post is fastened to the second fixing post to clamp and fix the fastening part.

10. The electromagnetic cooking appliance according to claim 9, characterized in that, The fastening part is provided with a plug groove, and the mounting post and / or the second fixing post are plugged into the plug groove.

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