Electromagnetic oven

Abstract

The utility model discloses an induction cooker which comprises a shell, an electromagnetic wire coil arranged in the shell, a first fan, a second fan and a main control board provided with a radiator, and the first fan and the second fan are distributed on the same side of the main control board side by side. A first air blocking ring and a second air blocking ring corresponding to the first fan and the second fan are arranged on the wall of the shell respectively, the first air blocking ring is provided with a first opening allowing the first fan to discharge air towards the radiator, and the second air blocking ring is provided with a second opening allowing the second fan to face the position between the main control board and the electromagnetic wire coil. The first opening extends to the inner bottom wall of the shell from the upper end of the first air blocking ring, and the second opening is provided with a lifting rib so that the lower end edge of the second opening can be higher than the lower end edge of the first opening. According to the induction cooker disclosed by the utility model, the air quantity blown to the radiator can be increased, and the radiating effect of the radiator is improved, so that the performance of the whole machine 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, inside which a concave electromagnetic coil and a main control board located below the electromagnetic coil are installed. A heat sink is located on the main control board. When the concave induction cooker is working, components such as IGBTs, capacitors, inductors, and the heat sink generate significant heat. To address this, a first fan is installed inside the housing to dissipate heat from the heat sink. A first baffle ring is also provided on the wall of the housing, surrounding the first fan and having a first opening facing the heat sink. When the first fan is working, it draws in outside air, then blows the air out through the first opening towards the heat sink and finally exhausts it outside the housing. However, the existing design of the first opening results in most of the blown air being directed towards the electromagnetic coil above the heat sink, while the amount of air directed towards the heat sink is relatively small, leading to a high temperature rise in the heat sink and affecting 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 increase the air volume blown towards the radiator, improve the heat dissipation effect of the radiator, and 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, an electromagnetic coil disposed within the housing, a first fan, a second fan, and a main control board with a radiator. The first fan and the second fan are arranged side by side on the same side of the main control board. The wall of the housing is provided with a first baffle ring and a second baffle ring corresponding to the first fan and the second fan, respectively. The first baffle ring has a first opening for the first fan to exhaust air toward the radiator, and the second baffle ring has a second opening for the second fan to exhaust air toward the space between the main control board and the electromagnetic coil. The first opening extends from the upper end of the first baffle ring to the bottom wall of the housing. The second opening is provided with a lifting rib so that the lower edge of the second opening is higher than the lower edge of the first opening.

[0006] In the aforementioned induction cooker, the lateral width of the first opening is not less than the lateral width of the radiator.

[0007] In the above-mentioned induction cooker, the radiator has an air inlet facing the first fan, the air inlet extending outward from the main control board to be in a suspended state, and the air inlet extending into the area enclosed by the first baffle ring through the first opening.

[0008] In the aforementioned induction cooker, the lateral width of the first opening is greater than the lateral width of the second opening.

[0009] In the above-mentioned induction cooker, the heat sink includes a base plate and a plurality of first heat sink fins disposed on the top surface of the base plate. A first heat sink channel for cold air to flow is formed between two adjacent first heat sink fins, and the top surface of the first baffle ring is higher than the top surface of the first heat sink fins.

[0010] In the above-mentioned induction cooker, the side wall of the shell has a first side wall close to the heat sink, and the first side wall is provided with a first air outlet corresponding to the heat sink. The bottom wall of the shell is also provided with an air guide plate extending from the first opening to the first air outlet. The heat sink is located on the path of the cold air blown out from the first opening to the first air outlet.

[0011] In the above-mentioned induction cooker, the radiator further includes second heat dissipation fins. A plurality of second heat dissipation fins are spaced apart on the bottom surface of the substrate and extend downward, and a second heat dissipation channel for cold air to flow is formed between two adjacent second heat dissipation fins.

[0012] In the aforementioned induction cooker, the top surface of the lifting rib is higher than the top surface of the main control board.

[0013] In the aforementioned induction cooker, an inductor is provided on the top surface of the main control board, and the second opening is directed towards the inductor for air outlet.

[0014] In the above-mentioned induction cooker, the bottom wall of the shell is provided with a first air inlet located below the first fan and a second air inlet located below the second fan. The first baffle ring is arranged around the first air inlet, and the second baffle ring is arranged around the second air inlet.

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

[0016] 1. In this utility model, the first opening extends from the upper end of the first windshield ring to the bottom wall of the housing. In this way, the lower edge of the first opening is lower than the base plate of the radiator, and the upper edge of the first opening is higher than the base plate. When the first fan is working, the air blown out through the first opening can be blown simultaneously to the top and bottom of the base plate of the radiator, thereby increasing the air volume blown to the radiator and also increasing the contact area between the radiator and the cold air, thus improving the heat dissipation effect of the radiator and ensuring the overall performance of the machine. In addition, the second opening is provided with lifting ribs so that the lower edge of the second opening is higher than the lower edge of the first opening. In this way, when the second fan is working, most of the air blown out through the second opening can be blown between the main control board and the electromagnetic coil, thereby increasing the heat dissipation effect of the main control board and the electromagnetic coil and ensuring the overall performance of the machine.

[0017] 2. The lateral width of the first opening is not less than the lateral width of the radiator. This design allows all the air blown out through the first opening to flow across the entire lateral dimension of the radiator, thereby improving the heat dissipation effect of the radiator.

[0018] 3. The radiator has an air intake end facing the first fan, which extends outward from the main control board and is suspended in the air. The air intake end extends into the area enclosed by the first baffle ring through the first opening. This design prevents cold air from diffusing and escaping to areas outside the radiator, allowing the cold air to be concentrated and blown onto the radiator, thereby improving the heat dissipation effect of the radiator.

[0019] 4. The horizontal width of the first opening is greater than that of the second opening. This design allows the airflow from the first opening to be greater than that from the second opening, thereby increasing the amount of airflow directed towards the radiator and improving its heat dissipation effect.

[0020] 5. The heat sink includes a substrate and a plurality of first heat dissipation fins disposed on the top surface of the substrate. A first heat dissipation channel for cold air to flow is formed between two adjacent first heat dissipation fins. The top surface of the first baffle ring is higher than the top surface of the first heat dissipation fins. This design increases the distance between the upper edge of the first opening and the top surface of the substrate, thereby increasing the open size of the area above the top surface of the substrate corresponding to the first opening, and thus increasing the airflow towards the first heat dissipation channel. At the same time, it ensures that the cold air can flow over the entire surface of the first heat dissipation fins, that is, it increases the contact between the first heat dissipation fins and the cold air, thereby improving the heat dissipation effect.

[0021] 6. The sidewall of the casing has a first sidewall near the radiator, and a first air outlet corresponding to the radiator is provided on the first sidewall. The bottom wall of the casing also has an air guide plate extending from the first opening to the first air outlet. The radiator is located on the path of the cold air blown out from the first opening to the first air outlet. This design allows the heat of the radiator to be dissipated to the outside in a timely manner through the first air outlet, and also ensures that the cold air blown out from the first opening can be discharged from the first air outlet in a timely manner after passing through the radiator, so as to ensure the air volume blown towards the radiator and improve the heat dissipation effect of the radiator.

[0022] 7. The radiator also includes second heat dissipation fins. Multiple second heat dissipation fins are spaced apart on the bottom surface of the substrate and extend downwards, forming a second heat dissipation channel between adjacent second heat dissipation fins for the flow of cool air. This design, by setting the second heat dissipation fins, can further increase the contact area between the radiator and the cool air below, thereby further improving the heat dissipation effect of the radiator.

[0023] 8. The top surface of the lifting rib is higher than the top surface of the main control board. This design allows all the air blown out through the second opening to flow between the main control board and the electromagnetic coil, thereby increasing the airflow to the main control board and the electromagnetic coil and improving their heat dissipation.

[0024] 9. An inductor is located on the top surface of the main control board, and the second opening faces the inductor for airflow. This design increases the airflow towards the inductor, improving its heat dissipation.

[0025] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Figure 1 This is an explosion diagram of the induction cooker in Embodiment 1 of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure in Embodiment 1 of this utility model, in which the main control board, the first fan, and the second fan are mounted on the lower cover.

[0029] Figure 3 This is a schematic diagram of the lower cover in Embodiment 1 of this utility model;

[0030] Figure 4 This is an assembly diagram of the heat sink and main control board in Embodiment 1 of this utility model;

[0031] Figure 5 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;

[0032] Figure 6 for Figure 5 Sectional view of AA;

[0033] Figure 7 for Figure 6 A magnified view of part B in the diagram;

[0034] Figure label:

[0035] 001. Ventilation gap; 100. Housing; 110. Lower cover; 101. First air inlet; 102. Second air inlet; 103. First air outlet; 104. Second air outlet; 111. First side wall; 120. Upper cover; 130. Panel assembly; 200. Main control board; 210. Inductor; 300. Heat sink; 301. First heat dissipation channel; 302. Second heat dissipation channel; 310. Base plate; 320. First heat dissipation fin; 330. Second heat dissipation fin; 400. First fan; 500. First wind deflector; 510. First opening; 600. Electromagnetic coil; 700. Air guide plate; 800. Second fan; 900. Second wind deflector; 910. Second opening; 911. Lifting rib.

Detailed Implementation Methods

[0036] This utility model provides an induction cooker, including a shell, an electromagnetic coil disposed within the shell, a first fan, a second fan, and a main control board with a radiator. The first fan and the second fan are arranged side by side on the same side of the main control board. The wall of the shell is provided with a first baffle ring and a second baffle ring corresponding to the first fan and the second fan, respectively. The first baffle ring has a first opening for the first fan to exhaust air towards the radiator, and the second baffle ring has a second opening for the second fan to exhaust air towards the space between the main control board and the electromagnetic coil. The first opening extends from the upper end of the first baffle ring to the bottom wall of the shell. The second opening is provided with a lifting rib so that the lower edge of the second opening is higher than the lower edge of the first opening.

[0037] In this invention, the first opening extends from the upper end of the first baffle ring to the bottom wall of the housing. This allows the lower edge of the first opening to be lower than the base plate of the radiator, while the upper edge is higher. When the first fan is operating, the air blown through the first opening can simultaneously blow towards both the top and bottom of the radiator base plate, thereby increasing the airflow towards the radiator and also increasing the contact area between the radiator and the cold air, thus improving the heat dissipation effect of the radiator and ensuring the overall performance of the machine. Furthermore, the second opening has lifting ribs, so that the lower edge of the second opening is higher than the first opening. This allows most of the air blown through the second opening to be directed between the main control board and the electromagnetic coil when the second fan is operating, increasing the heat dissipation effect on both the main control board and the electromagnetic coil, and ensuring the overall performance of the machine.

[0038] 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.

[0039] Example 1

[0040] like Figures 1 to 7As shown, the induction cooker in this embodiment includes a housing 100, and a main control board 200, a radiator 300, a first fan 400, a second fan 800, and an electromagnetic coil 600 disposed within the housing 100. The radiator 300 is mounted on the main control board 200. The first fan 400 and the second fan 800 are arranged side by side on the same side of the main control board 200. The wall of the housing 100 is respectively provided with a first wind deflector 500 and a second wind deflector 900 corresponding to the first fan 400 and the second fan 800. 500 is provided with a first opening 510 for the first fan 400 to exhaust air toward the heat sink 300, and the second baffle ring 900 is provided with a second opening 910 for the second fan 800 to exhaust air toward the space between the main control board 200 and the electromagnetic coil 600. The first opening 510 extends from the upper end of the first baffle ring 500 to the bottom wall of the inner shell. The second opening 910 is provided with a lifting rib 911. The top surface of the lifting rib 911 forms the lower edge of the second opening 910, so that the lower edge of the second opening 910 is higher than the lower edge of the first opening 510.

[0041] In this embodiment, the first opening 510 extends from the upper end of the first baffle ring 500 to the bottom wall of the housing. This allows the lower edge of the first opening 510 to be lower than the substrate 310 of the heat sink 300, while the upper edge of the first opening 510 is higher than the substrate 310. When the first fan 400 is operating, the air blown through the first opening 510 can simultaneously blow towards both the area above and below the substrate 310 of the heat sink 300, thereby increasing the airflow towards the heat sink 300 and also increasing the efficiency of the heat sink 300. The contact area between the 00 and the cold air is increased, thereby improving the heat dissipation effect of the heat sink 300 and ensuring the overall performance of the machine. In addition, the second opening 910 is provided with lifting ribs 911 so that the lower edge of the second opening 910 is higher than the lower edge of the first opening 510. In this way, when the second fan 800 is working, most of the air blown out through the second opening 910 can be blown between the main control board 200 and the electromagnetic coil 600, thereby increasing the heat dissipation effect of the main control board 200 and the electromagnetic coil 600 and ensuring the overall performance of the machine.

[0042] 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 first wind deflector 500 and the second wind deflector 900 are integrally formed on the bottom wall of the lower cover 110. The first fan 400 and the second fan 800 are respectively fixedly mounted on the screw posts on the bottom wall of the lower cover 110 by screws. The bottom wall of the lower cover 110 forms the bottom wall of the housing 100. The bottom wall of the lower cover 110 is provided with a first air inlet 101 located below the first fan 400 and a second air inlet 102 located below the second fan 800. The first wind deflector 500 is arranged around the first air inlet 101, and the second wind deflector 900 is arranged around the second air inlet 102. The first fan 400 and the second fan 800 can be axial flow fans or vortex fans.

[0043] like Figure 2 , Figure 4 and Figure 7 As shown, when the induction cooker is in use, the first fan 400 and the second fan 800 are located in front of the radiator 300 and the main control board 200. The first opening 510 and the second opening 910 are open to the rear. The radiator 300 includes a base plate 310 and a plurality of first heat dissipation fins 320 disposed on the top surface of the base plate. The first heat dissipation fins 320 extend in the front-to-back direction, and a first heat dissipation channel 301 is formed between two adjacent first heat dissipation fins 320 to allow cold air to flow. A ventilation gap 001 is formed between the bottom surface of the base plate and the bottom wall of the housing 100. The ventilation gap 001 is also open in the front-to-back direction. The bottom surface of the base plate is higher than the lower edge of the first opening 510 and is higher than the inner bottom wall of the housing. The surface is lower than the upper edge of the first opening 510. In this way, the first opening 510 can be divided by the substrate 310 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 400 is working, the cold air drawn in by the first fan 400 from the first air inlet 101 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 301 to increase the airflow blowing towards the top of the substrate 310, while the cold air blown out from the lower opening area will blow towards the ventilation gap 001 to increase the airflow blowing towards the bottom of the substrate 310. This increases the airflow towards the heat sink 300, improves the heat dissipation effect of the heat sink 300, and ensures the overall performance of the machine.

[0044] In this embodiment, the lateral width of the first opening 510 is not less than the lateral width of the radiator 300, that is, the dimension of the first opening 510 in the left-right direction is not less than the dimension of the radiator 300 in the left-right direction, so that the radiator 300 can fully correspond to the first opening 510. With this design, the air blown out through the first opening 510 can flow through the entire lateral dimension of the radiator 300, thereby improving the heat dissipation effect of the radiator 300.

[0045] Better, such as Figure 2 and Figure 4 As shown, in order to further increase the airflow from the first fan 400 to the radiator 300, in this embodiment, the radiator 300 has an air inlet facing the first fan 400, that is, the front end of the radiator 300 forms the air inlet. The air inlet extends outward from the main control board 200 to be in a suspended state, that is, the air inlet is spaced apart from the bottom wall of the lower cover 110. The air inlet extends into the area enclosed by the first baffle ring 500 through the first opening 510. This design can prevent cold air from diffusing and escaping to areas other than the radiator 300, so that the cold air can be concentrated and blown towards the radiator 300, thereby improving the heat dissipation effect of the radiator 300.

[0046] like Figure 7As shown, the top surface of the first baffle ring 500 is higher than the top surface of the first heat dissipation fin 320. Since the depth of the concavity of the electromagnetic coil 600 gradually decreases from the center to the edge, to accommodate the change in the electromagnetic coil 600, the height of the multiple first heat dissipation fins 320 gradually increases towards the direction away from the center of the electromagnetic coil 600. In this embodiment, the top surface of the first baffle ring 500 being higher than the top surface of the first heat dissipation fin 320 means that the top surface of the first baffle ring 500 is higher than the top surface of the highest first heat dissipation fin 320. This design 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 towards the first heat dissipation channel 301. It also ensures that cold air can flow across the entire surface of the first heat dissipation fin 320, thus increasing the contact between the first heat dissipation fin 320 and the cold air, thereby improving the heat dissipation effect.

[0047] Furthermore, in this embodiment, the lateral width of the first opening 510 is greater than the lateral width of the second opening 910, meaning the dimension of the first opening 510 in the left-right direction is greater than the dimension of the second opening 910 in the left-right direction. This design allows the airflow from the first opening 510 to be greater than that from the second opening 910, thereby increasing the airflow directed towards the radiator 300 and improving the heat dissipation effect of the radiator 300.

[0048] The radiator 300 in this embodiment further includes a plurality of second heat dissipation fins 330 extending in the front-rear direction. The plurality of second heat dissipation fins 330 are spaced apart on the bottom surface of the substrate 310 and extend downward, and a second heat dissipation channel 302 for cold air to flow is formed between two adjacent second heat dissipation fins 330. With this design, by setting the second heat dissipation fins 330, the contact area between the radiator 300 and the cold air below can be further increased, so as to further improve the heat dissipation effect of the radiator 300.

[0049] To further improve the heat dissipation effect of the radiator 300, in this embodiment, the side wall of the housing 100 has a first side wall close to the radiator 300, that is, the side wall of the lower cover 110 has a first side wall 111 close to the radiator 300. In this embodiment, the radiator 300 is located at the left end of the main control board 200, so the left side wall of the lower cover 110 forms the first side wall 111. The first side wall 111 is provided with a first air outlet 103 corresponding to the radiator 300. The bottom wall of the lower cover 110 is also provided with a guide plate 700. The guide plate 700 extends from the left end of the first opening 510 to the front end of the first air outlet 103. The radiator 300 and the first air outlet 103 are both located on the right side of the guide plate 700, and the radiator 300 is located between the first opening 510 and the first air outlet 103, so that the radiator 300 is located on the path of the cold air blown out from the first opening 510 to the first air outlet 103. This design allows the heat from the radiator 300 to be dissipated to the outside in a timely manner through the first air outlet 103, while also ensuring that the cool air blown out by the first opening 510 flows through the radiator 300 before being discharged through the first air outlet 103 in a timely manner, thus ensuring that the air is blown towards the radiator 300 and improving the heat dissipation effect of the radiator 300.

[0050] like Figure 2 and Figure 3 As shown, in this embodiment, the electromagnetic coil 600 is located above the heat sink 300 and the main control board 200. The rear side wall of the lower cover 110 is also provided with a second air outlet 104. When the first fan 400 and the second fan 800 are working, the drawn-in cold air is blown towards the heat sink 300, the main control board 200, and the electromagnetic coil 600, and the hot air formed by heat absorption can be discharged through the second air outlet 104. The top surface of the lifting rib 911 is higher than the top surface of the main control board 200. This design allows all the air blown out through the second opening 910 to flow between the main control board 200 and the electromagnetic coil 600, increasing the airflow towards the main control board 200 and the electromagnetic coil 600, thereby improving the heat dissipation effect of the main control board 200 and the electromagnetic coil 600.

[0051] Finally, in this embodiment, the top surface of the main control board 200 is provided with an inductor 210, and the second opening 910 faces the inductor 210 for airflow. This design increases the airflow towards the inductor 210, thereby improving the heat dissipation effect on the inductor 210.

[0052] 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 electromagnetic oven, comprising a housing, an electromagnetic wire disc provided in the housing, a first fan, a second fan, and a main control board provided with a radiator, the first fan and the second fan being distributed side by side on the same side of the main control board, characterized in that, The wall of the shell is respectively provided with a first baffle ring and a second baffle ring corresponding to the first fan and the second fan, the first baffle ring is provided with a first opening for the first fan to blow air towards the radiator, and the second baffle ring is provided with a second opening for the second fan to blow air towards the main control board and the electromagnetic coil disc, the first opening extends from the upper end of the first baffle ring to the inner bottom wall of the shell, and the second opening is provided with a lifting rib so that the lower end of the second opening is higher than the lower end of the first opening.

2. The electromagnetic stove as claimed in claim 1, wherein The transverse width of the first opening is not less than the transverse width of the radiator.

3. The electromagnetic stove according to claim 2, characterized in that, The radiator has an air inlet end towards the first fan, the air inlet end extends outward of the main control board to be in a suspended state, and the air inlet end extends into the area surrounded by the first baffle ring through the first opening.

4. The electromagnetic stove as claimed in claim 1, wherein The transverse width of the first opening is greater than the transverse width of the second opening.

5. The electromagnetic stove as claimed in claim 1, wherein The radiator comprises a base plate and a plurality of first heat dissipation fins arranged on the top surface of the base plate, and a first heat dissipation channel for cold air to flow through is formed between two adjacent first heat dissipation fins, and the top surface of the first baffle ring is higher than the top surface of the first heat dissipation fin.

6. The electromagnetic stove as claimed in claim 1, wherein The side wall of the shell has a first side wall close to the radiator, the first side wall is provided with a first air outlet corresponding to the radiator, the bottom wall of the shell is further provided with a baffle plate extending from the first opening to the first air outlet, and the radiator is located on the path of the cold air blown out of the first opening to the first air outlet.

7. The electromagnetic stove as claimed in claim 1, wherein The radiator further comprises second heat dissipation fins, a plurality of the second heat dissipation fins are arranged on the bottom surface of the base plate and extend downward, and a second heat dissipation channel for cold air to flow through is formed between two adjacent second heat dissipation fins.

8. The electromagnetic stove according to any one of claims 1 to 7, characterized in that, The top surface of the lifting rib is higher than the top surface of the plate body of the main control board.

9. The electromagnetic stove according to any one of claims 1 to 7, characterized in that, The top surface of the plate body of the main control board is provided with an inductor, and the second opening blows air towards the inductor.

10. The electromagnetic stove according to any one of claims 1 to 7, characterized in that, The bottom wall of the shell is provided with a first air inlet below the first fan and a second air inlet below the second fan, the first baffle ring is arranged around the first air inlet, and the second baffle ring is arranged around the second air inlet.

Images