Electromagnetic oven

Abstract

The induction cooker comprises a shell, a fan assembly and a main control board, the fan assembly and the main control board are arranged in the shell, an air inlet part and an air outlet part are arranged on the wall portion of the shell, the air inlet part is located on the windward side of the fan assembly, the main control board is located on the leeward side of the fan assembly, and the main control board comprises an inductor. The wall portion of the shell comprises a first side wall located on the leeward side of the inductor, two air blocking ribs arranged in the length direction of the first side wall at intervals are arranged on the inner side of the first side wall, the air outlet portion comprises a first air outlet formed between the two air blocking ribs, and a first area is formed in the projection area, facing the first side wall, of the inductor. At least part of the first air outlet is located in the first area. According to the induction cooker, the heat dissipation effect on the inductor can be improved, so that the performance of the whole induction cooker is ensured.

Description

[Technical Field]

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to an induction cooker. [Background Technology]

[0002] In existing technology, high-power concave induction cookers for home use include a housing, within which a concave electromagnetic coil and a main control board located below the coil are installed. The main control board includes an inductor. When the concave induction cooker is working, the inductor generates a significant amount of heat. Therefore, a fan assembly for cooling the inductor is also provided inside the housing. The housing wall has an air inlet and an air outlet. The air inlet is located on the upper side of the fan assembly, and the main control board is located on the lower side. When the fan assembly is working, it draws in cool air from the outside through the air inlet and blows it towards the main control board and the inductor. The air outlet is located on the first sidewall of the housing, on the lower side of the main control board. This design of the air outlet weakens the structural strength of the first sidewall. To ensure the structural strength of the first sidewall, the air outlet is often located outside the projection area of ​​the inductor on the first sidewall. As a result, the hot air flowing through the inductor and absorbing heat cannot be discharged from the housing in a timely manner along its flow direction, remaining stagnant on the lower side of the inductor. This leads to poor heat dissipation of the inductor and affects the overall performance of the cooker. [Utility Model Content]

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an induction cooker that can improve the heat dissipation effect of the inductor to ensure the overall performance of the machine.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An induction cooker includes a housing, a fan assembly disposed within the housing, and a main control board. The wall of the housing has an air inlet and an air outlet. The air inlet is located on the windward side of the fan assembly, and the main control board is located on the windward side of the fan assembly. The main control board includes an inductor. The wall of the housing includes a first sidewall located on the windward side of the inductor. The inner side of the first sidewall has two baffle ribs spaced apart along its length. The air outlet includes a first air outlet disposed between the two baffle ribs. The projection area of ​​the inductor toward the first sidewall forms a first region, and at least a portion of the first air outlet is located within the first region.

[0006] In the above-mentioned induction cooker, the dimension of the first air outlet along the length of the first sidewall is L, and the diameter of the inductor is D, satisfying: 0.5 < L / D < 2.

[0007] In the above-mentioned induction cooker, the main control board also includes a board body, and the inductor is located at one end of the board body near the first side wall.

[0008] In the above-mentioned induction cooker, the first air outlet includes a plurality of strip-shaped grilles spaced apart along the length of the first sidewall, and a reinforcing rib protruding from the inner side of the first sidewall is provided between two adjacent strip-shaped grilles. The height of the baffle rib protruding from the inner side of the first sidewall is greater than the height of the reinforcing rib protruding from the inner side of the first sidewall.

[0009] In the aforementioned induction cooker, the fan assembly includes a first fan and a second fan arranged side-by-side on the wind side of the main control board. The main control board is provided with a heat sink located near the inductor. The first fan blows cold air toward the heat sink, and the second fan blows the cold air it draws in toward the inductor.

[0010] In the above-mentioned induction cooker, the air outlet also includes a second air outlet provided on the first side wall. The second air outlet is located on the side of the baffle rib away from the first air outlet, and part of the second air outlet is located on the downwind side of the radiator.

[0011] In the above-mentioned induction cooker, an electromagnetic coil is also provided inside the shell above the radiator and the main control board, and the second fan blows the cold air drawn in toward the electromagnetic coil and the main control board.

[0012] In the above-mentioned induction cooker, the bottom wall of the shell is also provided with a second wind deflector ring surrounding the outside of the second fan. The second wind deflector ring is provided with a second opening that opens toward the main control board. The lower edge of the second opening is between the top surface of the main control board and the lower end surface of the electromagnetic coil.

[0013] In the aforementioned induction cooker, the bottom wall of the housing is provided with a first wind deflector ring surrounding the outside of the first fan. The first wind deflector ring has a first opening that opens toward the radiator. The radiator includes a base plate and a plurality of first heat dissipation fins disposed on the top surface of the base plate. A first heat dissipation channel for cold air to flow is formed between two adjacent first heat dissipation fins. A ventilation gap is formed between the bottom surface of the base plate and the bottom wall of the housing. The bottom surface of the base plate is higher than the lower edge of the first opening, and the top surface of the base plate is lower than the upper edge of the first opening, so that the cold air flowing out from the first opening blows toward the ventilation gap and the first heat dissipation channel and is then discharged from the air outlet.

[0014] In the above-mentioned induction cooker, the first baffle ring is connected to the bottom wall of the shell, and the first opening extends downward to the bottom surface of the first baffle ring, so that the bottom wall of the shell forms the lower edge of the first opening.

[0015] The beneficial effects of this utility model are:

[0016] 1. In this utility model, the inner side of the first sidewall is provided with two wind-blocking ribs spaced apart along its length. The air outlet includes a first air outlet located between the two wind-blocking ribs. The projection area of ​​the inductor toward the first sidewall forms a first region, and at least part of the first air outlet is located within the first region. This design allows part of the first air outlet to be positioned close to the inductor, shortening the path of the hot air flowing through the inductor and absorbing heat to the first air outlet, allowing it to be discharged quickly. The wind-blocking ribs effectively prevent the hot air entering between the two wind-blocking ribs from escaping outward and remaining inside the casing, thus promoting the hot air to be discharged through the first air outlet as quickly as possible. They also prevent the airflow from the outer region of the two wind-blocking ribs to the first air outlet, so that after the hot air is discharged from the first air outlet, the region between the two wind-blocking ribs is in a low-pressure state. This allows more air from the high-pressure area on the upper side of the inductor to flow toward the inductor, increasing the airflow through the inductor, thereby improving the heat dissipation effect on the inductor and reducing the temperature rise of the inductor, ensuring the overall performance of the machine.

[0017] 2. The dimension of the first air outlet along the length of the first sidewall is L, and the diameter of the inductor is D, satisfying: 0.5 < L / D < 2. This design ensures that the air flowing through the inductor is quickly and timely discharged from the casing through the first air outlet, thus promoting more cool air flow to the inductor. It also avoids the first air outlet occupying too much area of ​​the first sidewall, preventing the installation of more air outlets outside the two baffle ribs, which would hinder the timely discharge of air flowing through other components requiring heat dissipation, thus affecting the heat dissipation effect on those components.

[0018] 3. The main control board also includes a board body, with the inductor located at one end of the board body near the first side wall. This design shortens the distance between the inductor and the first air outlet, allowing the hot air generated by the heat absorbed by the inductor to quickly reach the first air outlet and be discharged from it, thereby increasing the efficiency of hot air discharge. This, in turn, allows more cool air to be blown toward the inductor, improving the cooling effect on the inductor.

[0019] 4. The first air outlet includes multiple strip-shaped grilles spaced apart along the length of the first sidewall. A reinforcing rib protruding from the inner surface of the first sidewall is provided between two adjacent strip-shaped grilles. The height of the wind-blocking rib protruding from the inner surface of the first sidewall is greater than the height of the reinforcing rib protruding from the inner surface of the first sidewall. By designing the reinforcing rib, the structural strength of the portion of the first sidewall located between two wind-blocking ribs can be ensured, thereby reducing the deformation of the first sidewall.

[0020] 5. The fan assembly includes a first fan and a second fan arranged side-by-side on the airflow side of the main control board. The main control board has a heatsink positioned near the inductor. The first fan blows cool air onto the heatsink, and the second fan blows the drawn-in cool air onto the inductor. Positioning the heatsink close to the inductor allows it to absorb heat from the inductor, reducing its temperature rise. However, since the heatsink also absorbs heat from the main control board, its heat generation is also significant. Therefore, by using two fans to dissipate heat from the heatsink and the inductor respectively, the cooling effect on both the heatsink and the inductor can be improved, ensuring overall system performance.

[0021] 6. The air outlet also includes a second air outlet located on the first side wall. The second air outlet is located on the side of the baffle rib away from the first air outlet, and part of the second air outlet is located on the downwind side of the radiator. This design allows the hot air that has absorbed heat while flowing through the radiator to be discharged through the second air outlet. The baffle rib prevents the hot air at the second air outlet from flowing towards the first air outlet and increasing the time it stays in the casing. This ensures that the hot air that has absorbed heat while flowing through the radiator is discharged through the second air outlet in a timely manner, thereby causing more of the cool air blown out by the first fan to flow towards the radiator, improving the heat dissipation effect of the radiator.

[0022] 7. An electromagnetic coil is also located inside the casing, above the heat sink and main control board. The second fan blows the drawn-in cool air onto the electromagnetic coil and main control board. This design allows the cool air blown by the second fan to simultaneously cool the electromagnetic coil and main control board, thereby reducing the temperature rise of the electromagnetic coil and main control board and preventing excessive temperature rise of the electromagnetic coil and main control board from affecting the overall performance of the machine.

[0023] 8. The bottom wall of the housing is also provided with a second baffle ring surrounding the outside of the second fan. The second baffle ring has a second opening that opens towards the main control board, and the lower edge of the second opening is between the top surface of the main control board and the lower end surface of the electromagnetic coil. This design ensures that all the cool air blown out through the second opening is directed towards the electromagnetic coil, the electronic components on the upper surface of the main control board, and the inductor, thereby improving the heat dissipation effect on the electromagnetic coil, electronic components, and inductor.

[0024] 9. The bottom wall of the housing is provided with a first wind deflector ring surrounding the outside of the first fan. The first wind deflector ring is provided with a first opening that opens toward the radiator. The radiator includes a base plate and a plurality of first heat dissipation fins provided on the top surface of the base plate. A first heat dissipation channel for cold air to flow is formed between two adjacent first heat dissipation fins. A ventilation gap is formed between the bottom surface of the base plate and the bottom wall of the housing. The bottom surface of the base plate is higher than the lower edge of the first opening, and the top surface of the base plate is lower than the upper edge of the first opening, so that the cold air flowing out from the first opening blows toward the ventilation gap and the first heat dissipation channel and is discharged from the air outlet. In this way, the first opening can be divided by the substrate to form an upper opening area above the top surface of the substrate and a lower opening area below the bottom surface of the substrate. When the first fan is working, the cold air drawn in by the first fan is blown out through the first opening. The cold air blown out from the upper opening area will blow towards the first heat dissipation channel to increase the airflow towards the top of the substrate, while the cold air blown out from the lower opening area will blow towards the ventilation gap to increase the airflow towards the bottom of the substrate. Thus, this technical solution not only increases the airflow towards the heat sink, but also increases the contact area between the heat sink and the cold air, thereby improving the heat dissipation effect of the heat sink and ensuring the overall performance of the machine.

[0025] 10. The first baffle ring is connected to the bottom wall of the housing, and the first opening extends downward to the bottom surface of the first baffle ring, so that the bottom wall of the housing forms the lower edge of the first opening. This design increases the distance between the lower edge of the first opening and the bottom surface of the substrate, thereby increasing the open size of the lower opening area, increasing the airflow towards the ventilation gap, and improving the heat dissipation effect on the radiator.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] Figure 1 This is an explosion diagram of the induction cooker in Embodiment 1 of this utility model;

[0029] Figure 2 This is a top view of the induction cooker portion of the structure in Embodiment 1 of this utility model;

[0030] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0031] Figure 4 This is a schematic diagram of the lower cover in Embodiment 1 of this utility model;

[0032] Figure 5 This is a schematic diagram of the assembly of the heat sink and the main control board in Embodiment 1 of this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the electromagnetic coil, main control board, first fan and second fan mounted on the lower cover in Embodiment 1 of this utility model;

[0034] Figure 7 for Figure 6 Sectional view of BB;

[0035] Figure 8 for Figure 7 A magnified view of part of C;

[0036] Figure label:

[0037] 001, First area; 002, Ventilation gap; 100, Housing; 110, Lower cover; 101, Air inlet; 1011, First air inlet; 1012, Second air inlet; 102, Air outlet; 1021, First air outlet; 10210, Strip grille; 1022, Second air outlet; 1023, Third air outlet; 111, First sidewall; 112, Windbreak rib; 113, Reinforcing rib; 114, Second sidewall; 120, Upper cover; 130, Panel assembly ; 200, Fan assembly; 210, First fan; 220, Second fan; 300, Main control board; 310, Inductor; 320, Board body; 330, Heat sink; 331, Base plate; 332, First heat sink fin; 333, Second heat sink fin; 301, First heat dissipation channel; 302, Second heat dissipation channel; 400, Electromagnetic coil; 500, First wind deflector ring; 510, First opening; 600, Air guide plate; 700, Second wind deflector ring; 710, Second opening.

Detailed Implementation Methods

[0038] This utility model provides an induction cooker, including a housing, a fan assembly disposed within the housing, and a main control board. The wall of the housing is provided with an air inlet and an air outlet. The air inlet is located on the windward side of the fan assembly, and the main control board is located on the windward side of the fan assembly. The main control board includes an inductor. The wall of the housing includes a first sidewall located on the windward side of the inductor. The inner side of the first sidewall is provided with two wind-blocking ribs spaced apart along its length. The air outlet includes a first air outlet disposed between the two wind-blocking ribs. The projection area of ​​the inductor toward the first sidewall forms a first region, and at least a portion of the first air outlet is located within the first region. This design allows part of the first air outlet to be placed close to the inductor, shortening the path of the hot air flowing through the inductor and absorbing heat to the first air outlet, thus allowing it to be discharged quickly. The baffle ribs effectively prevent the hot air entering between the two baffle ribs from escaping outward and instead remain inside the casing, promoting the hot air to be discharged through the first air outlet as quickly as possible. They also prevent the airflow from the outer area of ​​the two baffle ribs to the first air outlet, so that after the hot air is discharged from the first air outlet, the area between the two baffle ribs is in a low-pressure state. This causes more air from the high-pressure area on the upper side of the inductor to flow towards the inductor, increasing the airflow through the inductor, thereby improving the heat dissipation effect on the inductor and reducing the temperature rise of the inductor, ensuring the overall performance of the machine.

[0039] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this utility model. In addition, it should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., indicating orientation or positional relationship, are only based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device / component must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Example 1

[0041] like Figures 1 to 8As shown, the induction cooker in this embodiment includes a housing 100, a fan assembly 200 disposed within the housing 100, a main control board 300, and an electromagnetic coil 400. The wall of the housing 100 is provided with an air inlet 101 and an air outlet 102. The air inlet 101 is located on the windward side of the fan assembly 200, and the main control board 300 is located on the windward side of the fan assembly 200. The main control board 300 includes an inductor 310. The wall of the housing 100 includes a first sidewall 111 located on the windward side of the inductor 310. The inner side of the first sidewall 111 is provided with two baffle ribs 112 spaced apart along its length. The air outlet 102 includes a first air outlet 1021 disposed between the two baffle ribs 112. The projection area of ​​the inductor 310 toward the first sidewall 111 forms a first region 001, and at least part of the first air outlet 1021 is located within the first region 001. This design allows part of the first air outlet 1021 to be positioned close to the inductor 310, shortening the path of the hot air flowing through the inductor 310 and absorbing heat to the first air outlet 1021, thus allowing it to be discharged quickly. The baffle ribs 112 effectively prevent the hot air entering between the two baffle ribs 112 from escaping outward and remaining inside the housing 100, thus promoting the hot air to be discharged through the first air outlet 1021 as quickly as possible. They also prevent the airflow from the outer area of ​​the two baffle ribs 112 to the first air outlet 1021, so that after the hot air is discharged from the first air outlet 1021, the area between the two baffle ribs 112 is in a low-pressure state. This allows more air from the high-pressure area on the upper side of the inductor 310 to flow towards the inductor 310, increasing the airflow through the inductor 310, thereby improving the heat dissipation effect of the inductor 310 and reducing the temperature rise of the inductor 310, ensuring the overall performance of the machine.

[0042] Specifically, in this embodiment, the housing 100 includes a lower cover 110, an upper cover 120, and a panel assembly 130 mounted on the upper cover 120. The main control board 300 and the fan assembly 200 are both mounted on the bottom wall of the lower cover 110. When the induction cooker is in use, the fan assembly 200 is located in front of the main control board 300 and blows air towards the rear of the main control board 300. The rear side wall of the lower cover 110 forms a first side wall 111, so that the first side wall 111 is located on the downwind side of the inductor 310. In this embodiment, the air inlet 101 is located on the bottom wall of the lower cover 110 and below the fan assembly 200, so that the air inlet 101 is located on the upwind side of the fan assembly 200.

[0043] like Figure 2 and Figure 3As shown, in this embodiment, the dimension of the first air outlet 1021 along the length of the first sidewall 111 is L, and the diameter of the inductor 310 is D, satisfying: 0.5 < L / D < 2. When L / D ≤ ​​0.5, the length L of the first air outlet 1021 is relatively small, so the air flowing through the inductor 310 cannot be quickly and timely discharged from the casing through the first air outlet 1021, causing hot air to remain inside the casing 100 and reducing the heat dissipation effect on the inductor 310. When L / D ≥ 2, the first air outlet 1021 will occupy too much area of ​​the first sidewall 111, resulting in insufficient space for more air outlets on the side of the first sidewall 111 away from the first region 001 on the side of the wind deflector 112. The air vents prevent airflow to other components requiring heat dissipation from being discharged in a timely manner. Therefore, in this embodiment, the L / D ratio is preferably 1.5. This design allows some of the first air vents 1021 to be located within the first region 001. This design ensures that airflow through the inductor 310 is quickly and timely discharged from the housing 100 through the first air vents 1021, promoting more cool air flow to the inductor 310. It also avoids the first air vents 1021 occupying too much area of ​​the first sidewall 111, allowing for more air vents to be installed in the area beyond the two baffles 112, ensuring timely discharge of airflow to other components requiring heat dissipation and improving the heat dissipation effect on these components. It should be noted that when 0.5 < L / D < 1, all first air vents 1021 are located within the first region 001.

[0044] In this embodiment, the main control board 300 also includes a board body 320. The inductor 310 is located at one end of the board body 320 near the first side wall 111, that is, the inductor 310 is located at the rear end of the board body 320. This design can shorten the distance between the inductor 310 and the first air outlet 1021, so that the hot air formed by the heat absorbed by the inductor 310 can quickly reach the first air outlet 1021 and be discharged from the first air outlet 1021, thereby increasing the efficiency of hot air discharge and allowing more cold air to be blown toward the inductor, thus improving the cooling effect on the inductor 310.

[0045] In this embodiment, the first air outlet 1021 includes a plurality of strip-shaped grilles 10210 spaced apart along the length of the first sidewall 111. A reinforcing rib 113 protruding from the inner surface of the first sidewall 111 is provided between two adjacent strip-shaped grilles 10210. The height of the wind-blocking rib 112 protruding from the inner surface of the first sidewall 111 is greater than the height of the reinforcing rib 113 protruding from the inner surface of the first sidewall 111. By designing the reinforcing rib 113, the structural strength of the portion of the first sidewall 111 located between the two wind-blocking ribs 112 can be ensured, thereby reducing the deformation of the first sidewall 111.

[0046] The fan assembly 200 in this embodiment includes a first fan 210 and a second fan 220 arranged side-by-side on the upper wind side of the main control board 300. The first fan 210 and the second fan 220 are respectively fixedly mounted on screw posts on the bottom wall of the lower cover 110 by screws. The air intake 101 includes a first air inlet 1011 and a second air inlet 1012 provided on the bottom wall of the lower cover 110. The first air inlet 1011 is located below the first fan 210, and the second air inlet 1012 is located below the second fan 220. The first fan 210 and the second fan 220 can be axial fans or vortex fans. The main control board 300 is provided with a heat sink 330 located near the inductor 310. The first fan 210 is located on the upper wind side of the heat sink 330 to blow cool air toward the heat sink 330, and the second fan 220 is located on the upper wind side of the inductor 310 to blow the drawn-in cool air toward the inductor 310. By placing the heatsink 330 close to the inductor 310, the heatsink 330 can absorb the heat from the inductor 310, thereby reducing the temperature rise of the inductor 310. However, since the heatsink 330 also needs to absorb the heat from the main control board 300, its heat generation is also relatively large. Therefore, by setting two fans to dissipate heat from the heatsink 330 and the inductor 310 respectively, the cooling effect of the heatsink 330 and the inductor 310 can be improved to ensure the overall performance of the machine.

[0047] Furthermore, in this embodiment, the electromagnetic coil 400 is located above the heat sink 330 and the main control board 300, and the second fan 220 blows the drawn-in cool air toward the electromagnetic coil 400 and the main control board 300. This design allows the cool air blown by the second fan 220 to simultaneously cool the electromagnetic coil 400 and the main control board 300, thereby reducing the temperature rise of the electromagnetic coil 400 and the main control board 300 and preventing excessive temperature rise of the electromagnetic coil 400 and the main control board 300 from affecting the overall performance of the machine.

[0048] In this embodiment, the air outlet 102 also includes a second air outlet 1022 disposed on the first side wall 111. The second air outlet 1022 includes a plurality of strip-shaped grilles spaced apart along the length of the first side wall 111. The second air outlet 1022 is located on the side of the windbreak rib 112 away from the first air outlet 1021. Part of the second air outlet 1022 is located on the downwind side of the radiator 330, and part of the second air outlet 1022 is located on the downwind side of the main control board 300. This design allows the hot air generated by the heat absorption of the radiator 330 to be discharged through the second air outlet 1022. The baffle 112 prevents the hot air at the second air outlet 1022 from flowing to the first air outlet 1021 and increasing the time it stays in the housing 100. This ensures that the hot air generated by the heat absorption of the radiator 330 is discharged through the second air outlet 1022 in a timely manner, thereby causing more of the cold air blown out by the first fan 210 to flow to the radiator 330, improving the heat dissipation effect of the radiator 330.

[0049] like Figure 8As shown, in order to improve the heat dissipation effect of the radiator 330, the bottom wall of the lower cover 110 in this embodiment is provided with a first wind deflector 500 surrounding the outside of the first fan 210. The first wind deflector 500 is provided with a first opening 510 that opens towards the radiator 330. The radiator 330 includes a base plate 331 and a plurality of first heat dissipation fins 332 provided on the top surface of the base plate 331. The first heat dissipation fins 332 extend in the front-back direction, and a first heat dissipation channel for cold air to flow is formed between two adjacent first heat dissipation fins 332. The first heat dissipation channel is arranged to be through the front and back. A ventilation gap 002 is formed between the bottom surface of the base plate 331 and the bottom wall of the lower cover 110. The bottom surface of the base plate 331 is higher than the lower edge of the first opening 510, and the top surface of the base plate 331 is lower than the bottom edge of the first opening 510. The upper edge of the first opening 510 is such that the first opening 510 can be divided by the substrate 331 to form an upper opening area above the top surface of the substrate and a lower opening area below the bottom surface of the substrate. When the first fan 210 is working, the cold air drawn in by the first fan 210 is blown out through the first opening 510. The cold air blown out from the upper opening area will blow towards the first heat dissipation channel to increase the airflow towards the top of the substrate 331, while the cold air blown out from the lower opening area will blow towards the ventilation gap 002 to increase the airflow towards the bottom of the substrate. It can be seen that this technical solution not only increases the airflow towards the heat sink 330, but also increases the contact area between the heat sink 330 and the cold air, thereby improving the heat dissipation effect of the heat sink 330 and ensuring the overall performance of the machine.

[0050] Preferably, the first baffle ring 500 is integrally injection molded, screwed, or fused to the bottom wall of the lower cover 110, and the first opening 510 extends downward to the bottom surface of the first baffle ring 500, so that the bottom wall of the lower cover 110 forms the lower edge of the first opening 510. This design increases the distance between the lower edge of the first opening 510 and the bottom surface of the substrate, thereby increasing the open size of the lower opening area, increasing the airflow towards the ventilation gap 002, and improving the heat dissipation effect on the radiator 330.

[0051] The top surface of the first wind deflector ring 500 is higher than the top surface of the first heat dissipation fin 332. Since the depth of the concavity of the electromagnetic coil 400 gradually decreases from the center to the edge, in order to adapt to the change of the electromagnetic coil 400, the height of the multiple first heat dissipation fins 332 gradually increases away from the center of the electromagnetic coil 400. In this embodiment, the top surface of the first wind deflector ring 500 is higher than the top surface of the first heat dissipation fin 332, which means that the top surface of the first wind deflector ring 500 is higher than the top surface of the highest first heat dissipation fin 332. The first opening 510 extends upward to the top surface of the first wind deflector ring 500, that is, the upper end of the first opening 510 is open. At this time, the first wind deflector ring 500 is an open ring. This design facilitates the processing and forming of the first opening 510, and increases the distance between the upper edge of the first opening 510 and the top surface of the substrate, thereby increasing the opening size of the upper opening area and increasing the airflow to the first heat dissipation channel. It also ensures that the cold air can flow over the entire surface of the first heat dissipation fin 332, thus increasing the contact between the first heat dissipation fin 332 and the cold air, thereby improving the heat dissipation effect.

[0052] To further increase the airflow from the first fan 210 to the radiator 330, in this embodiment, the radiator 330 has an air inlet facing the first fan 210. That is, the front end of the radiator 330 forms the air inlet, which extends outward from the main control board 300 to be suspended in mid-air. Specifically, the air inlet is spaced apart from the bottom wall of the lower cover 110, and extends through the first opening 510 into the area enclosed by the first baffle ring 500. This design prevents cold air from diffusing and escaping to areas outside the radiator 330, allowing the cold air to be concentrated and blown towards the radiator 330, thereby improving the heat dissipation effect of the radiator 330.

[0053] Furthermore, the radiator 330 in this embodiment also includes a plurality of second heat dissipation fins 333 extending along the front-rear direction. The plurality of second heat dissipation fins 333 are spaced apart on the bottom surface of the substrate 331 and extend downward, forming a second heat dissipation channel for cold air to flow between two adjacent second heat dissipation fins 333. With this design, by setting the second heat dissipation fins 333, the contact area between the radiator 330 and the cold air below can be further increased, so as to further improve the heat dissipation effect of the radiator 330.

[0054] In addition, such as Figure 4As shown, in this embodiment, the radiator 330 is located at the left end of the main control board 300. Therefore, the left side wall of the lower cover 110 forms a second side wall 114. The air outlet 102 also includes a third air outlet 1023 located on the second side wall 114 and corresponding to the radiator 330. The bottom wall of the lower cover 110 is also provided with a guide plate 600. The guide plate 600 extends from the left end of the first opening 510 to the front end of the third air outlet 1023. The radiator 330 and the third air outlet 1023 are both located on the right side of the guide plate 600, and the radiator 330 is located between the first opening 510 and the third air outlet 1023, so that the radiator 330 is located on the path of the cold air blown out from the first opening 510 to the third air outlet 1023. This design allows the heat from the radiator 330 to be dissipated to the outside in a timely manner through the third air outlet 1023, while also ensuring that the cool air blown out by the first opening 510 flows through the radiator 330 before being discharged through the third air outlet 1023 in a timely manner, thus ensuring that the air is blown towards the radiator 330 and improving the heat dissipation effect of the radiator 330.

[0055] Finally, in order to further improve the airflow to the electromagnetic coil 400 and the inductor 310, in this embodiment, the bottom wall of the housing 100 (i.e., the bottom wall of the lower cover 110) is also provided with a second wind deflector 700 surrounding the outside of the second fan 220. The second wind deflector 700 is integrally injection molded, welded, or fixed with screws to the bottom wall of the lower cover 110. The second wind deflector 700 is provided with a second opening 710 that opens towards the main control board 300. The second opening 710 extends downward from the top surface of the second wind deflector 700, and the height of the second opening 710 is less than the height of the second wind deflector 700. The lower edge of the second opening 710 is between the top surface of the main control board 300 and the lower end surface of the electromagnetic coil 400. This design ensures that all the cold air blown out through the second opening 710 is directed towards the electromagnetic coil 400, the electronic components on the upper surface of the main control board 300, and the inductor 310, thereby improving the heat dissipation effect on the electromagnetic coil 400, the electronic components, and the inductor 310.

[0056] It is understood that in other embodiments of this utility model, the first wind deflector ring is connected to the bottom wall of the housing, and the lower edge of the first opening is set higher than the bottom wall of the housing. That is, part of the first wind deflector ring is located below the first opening to form a wind deflector rib, and the top of the wind deflector rib forms the lower edge of the first opening. This design can improve the wind deflector ring's ability to gather cold air and increase wind pressure, so that the wind can blow towards the radiator at a faster speed, thereby improving the cooling efficiency of the radiator.

[0057] It is understood that in other embodiments of this utility model, the first opening is a through hole provided on the first windshield ring, and there is a distance between the upper edge of the first opening and the top surface of the first windshield ring, so as to ensure the structural strength of the first windshield ring.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. An induction cooker, comprising a housing, a fan assembly disposed within the housing, and a main control board, wherein the wall of the housing is provided with an air inlet and an air outlet, the air inlet being located on the upper wind side of the fan assembly, and the main control board being located on the lower wind side of the fan assembly, the main control board including an inductor, characterized in that, The wall of the housing includes a first sidewall located on the downwind side of the inductor. The inner side of the first sidewall is provided with two wind-blocking ribs spaced apart along its length. The air outlet includes a first air outlet located between the two wind-blocking ribs. The projection area of ​​the inductor toward the first sidewall forms a first region, and at least part of the first air outlet is located within the first region.

2. An induction cooker as described in claim 1, characterized in that, The dimension of the first air outlet along the length of the first sidewall is L, and the diameter of the inductor is D, satisfying: 0.5 < L / D < 2.

3. An induction cooker as described in claim 1, characterized in that, The main control board also includes a board body, and the inductor is located at one end of the board body near the first side wall.

4. An induction cooker as described in claim 1, characterized in that, The first air outlet includes a plurality of strip-shaped grilles spaced apart along the length of the first sidewall. A reinforcing rib protruding from the inner side of the first sidewall is provided between two adjacent strip-shaped grilles. The height of the wind-blocking rib protruding from the inner side of the first sidewall is greater than the height of the reinforcing rib protruding from the inner side of the first sidewall.

5. An induction cooker as described in claim 1, characterized in that, The fan assembly includes a first fan and a second fan arranged side by side on the windward side of the main control board. The main control board is provided with a heat sink located near the inductor. The first fan blows cold air toward the heat sink, and the second fan blows the cold air it draws in toward the inductor.

6. An induction cooker as described in claim 5, characterized in that, The air outlet also includes a second air outlet on the first side wall. The second air outlet is located on the side of the wind deflector away from the first air outlet, and part of the second air outlet is located on the downwind side of the radiator.

7. An induction cooker as described in claim 5, characterized in that, The housing also contains an electromagnetic coil located above the heat sink and the main control board, and the second fan blows the cold air drawn in toward the electromagnetic coil and the main control board.

8. An induction cooker as described in claim 7, characterized in that, The bottom wall of the housing is also provided with a second windshield ring surrounding the outside of the second fan. The second windshield ring has a second opening that opens toward the main control board. The lower edge of the second opening is between the top surface of the main control board and the lower end surface of the electromagnetic coil.

9. An induction cooker as described in claim 5, characterized in that, The bottom wall of the housing is provided with a first wind deflector ring surrounding the outside of the first fan. The first wind deflector ring is provided with a first opening that opens toward the radiator. The radiator includes a base plate and a plurality of first heat dissipation fins provided on the top surface of the base plate. A first heat dissipation channel for cold air to flow is formed between two adjacent first heat dissipation fins. A ventilation gap is formed between the bottom surface of the base plate and the bottom wall of the housing. The bottom surface of the base plate is higher than the lower edge of the first opening, and the top surface of the base plate is lower than the upper edge of the first opening, so that the cold air flowing out from the first opening blows toward the ventilation gap and the first heat dissipation channel and is discharged from the air outlet.

10. An induction cooker as described in claim 9, characterized in that, The first windshield ring is connected to the bottom wall of the housing, and the first opening extends downward to the bottom surface of the first windshield ring so that the bottom wall of the housing forms the lower edge of the first opening.

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