Cooking equipment

Abstract

The utility model provides a cooking device which comprises a lower cover, an upper cover and a lower cover, a containing cavity is formed in the lower cover, a heating area is arranged in the containing cavity, and a heating piece is arranged in the heating area; the upper cover covers the top end of the lower cover; the flow guide shell is integrally connected to the upper cover, an air inlet cavity is formed between the flow guide shell and the lower cover, a fan is arranged in the air inlet cavity, the side, facing the heating area, of the air inlet cavity is provided with a flow passing channel, the flow guide shell comprises a first guide plate, the first guide plate is located at the edge of the top of the air inlet cavity, and the first guide plate is located at the edge of the top of the air inlet cavity. The face, facing the air inlet cavity, of the first guide plate is a curved face or an inclined face in smooth transition so that air flow introduced into the air inlet cavity by the fan can be guided to the heating piece. The cooking equipment provided by the utility model is used for solving the technical problems that the air volume in the cooking equipment is small, and the heat dissipation effect is not ideal.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a cooking device. Background Art

[0002] In the design of an induction cooker, special attention needs to be paid to the heat dissipation problem of electronic components on the circuit board. In particular, the Insulate-Gate Bipolar Transistor (IGBT) module on the circuit board generates a large amount of heat. If heat dissipation cannot be carried out in time, the temperature inside the cooking device will continue to rise, affecting the normal operation of the cooking device and shortening the service life of the whole machine.

[0003] In order to dissipate heat from the cooking device, an axial flow fan is usually arranged inside the cooking device. The axial flow fan sucks air from the bottom of the device and blows the sucked air vertically to the panel. Under the action of wind pressure, the air moving to the panel then moves to the coil disc and the circuit board for heat dissipation. There is a problem that the air volume inside the cooking device is relatively small and the heat dissipation effect is not ideal.

[0004] Therefore, it is urgent to solve the technical problem that the air volume inside the cooking device is relatively small and the heat dissipation effect is not ideal. Summary of the Utility Model

[0005] The utility model provides a cooking device to solve the technical problem that the air volume inside the cooking device is relatively small and the heat dissipation effect is not ideal.

[0006] To achieve the above object, the utility model provides a cooking device, including:

[0007] A lower cover, which has a receiving cavity inside. There is a heating area in the receiving cavity, and a heating element is arranged in the heating area;

[0008] An upper cover, which covers the top end of the lower cover;

[0009] A diversion shell, which is integrally connected to the upper cover. An air inlet cavity is formed between the diversion shell and the lower cover. A fan is arranged in the air inlet cavity. There is a flow-through channel on one side of the air inlet cavity facing the heating area. The diversion shell includes a first guiding plate, which is located at the edge of the top of the air inlet cavity. The surface of the first guiding plate facing the air inlet cavity is a smoothly transitioned curved surface or an inclined surface to guide the air flow introduced into the air inlet cavity by the fan to the heating element.

[0010] The utility model provides a cooking device. By arranging a diversion shell, the diversion shell includes a first guiding plate which is located at the edge of the top of the air inlet cavity. The surface of the first guiding plate facing the air inlet cavity is a smoothly transitioning curved surface or an inclined surface, so that the diversion shell plays a role in guiding the air flow, thereby increasing the air flow wall attachment effect, changing the movement track of the air flow, helping to guide more air flow to the heating area, improving the heat dissipation effect of the heating element arranged in the heating area, and helping the cooking device to achieve high-power heating. In addition, since the diversion shell is integrally connected to the upper cover, the diversion shell and the upper cover become an integral part, saving the separate production, transportation, and cumbersome assembly operations of the diversion shell, and also being able to improve the accuracy of the relative position between the diversion shell and the upper cover, and improving the production efficiency of the cooking device.

[0011] In a possible implementation manner, the upper cover includes a frame portion, and there is an installation hole in the frame portion. The diversion shell is located in the installation hole, and the diversion shell and the inner wall of the installation hole are connected through a connecting portion. The connecting portion is arranged between the diversion shell and the inner wall of the installation hole, which not only ensures the correct installation position of the diversion shell but also does not affect the fixation of the diversion shell, realizing the stability of the diversion shell and the upper cover.

[0012] In a possible implementation manner, the diversion shell further includes a second guiding plate which is connected to the first guiding plate, and the second guiding plate is located at the top end of the air inlet cavity. The surface of the second guiding plate facing the air inlet cavity is a flat surface or an inclined surface. The second guiding plate can block the diffusion of the air flow to the upper side of the air inlet cavity, and the second guiding plate is beneficial to guiding the air flow towards the heating element in the heating area, so that more air flow enters the heating area.

[0013] In a possible implementation manner, the diversion shell further includes a side baffle which is connected to the first guiding plate, and the side baffle shields the edge of the air inlet cavity on the side away from the heating area. The side baffle can prevent the air flow introduced into the air inlet cavity by the fan from dispersing from the side of the air inlet cavity away from the heating area, so that more air flow blows towards the heating area, the wind force is stronger, the heat dissipation efficiency of the heating element is improved, the timeliness of heat dissipation of the heating element is effectively improved, the temperature rise of the heating element is reduced, and the problem of overheating of the heating element is prevented.

[0014] In a possible implementation manner, the upper cover further includes a reinforcing rib which is connected between the surface of the first guiding plate facing away from the air inlet cavity and the connecting portion. By arranging the reinforcing rib, it plays a role in enhancing the connection strength between the diversion shell and the upper cover, helping to prevent problems such as easy shaking and deformation of the diversion shell due to insufficient self-strength, and improving the stability of the fixation of the diversion shell.

[0015] In a possible implementation manner, the connecting portion includes a first connecting section and a second connecting section. The first connecting section is connected between the inner wall of the mounting hole and the second connecting section. The second connecting section is connected to the surface of the first guiding plate facing away from the air inlet cavity. There is an included angle between the second connecting section and the first connecting section. This enables the connecting portion to be connected between the edge of the diversion shell and the inner wall of the mounting hole. The connecting portion plays a role in restricting the deformation of the side edge of the diversion shell, improving the connection stability between the diversion shell and the upper cover, and ensuring the diversion effect of the diversion shell.

[0016] In a possible implementation manner, the diversion shell further has a notch. The top of the fan has a fixing frame, and both ends of the fixing frame extend into the notch respectively. This notch provides an avoidance effect for the fixing frame, facilitating the fixed connection of the fan to the lower cover.

[0017] In a possible implementation manner, a wind blocking rib is provided on the inner bottom wall of the lower cover. The wind blocking rib surrounds the edge of the air inlet cavity, and the diversion shell abuts against one end of the wind blocking rib away from the lower cover. The lower cover is also provided with air inlet holes, which penetrate the bottom wall surface of the air inlet cavity. The wind blocking rib can block the airflow from flowing out from the side of the air inlet cavity away from the heating area and also plays a role in supporting the diversion shell.

[0018] In a possible implementation manner, the diversion shell further includes a boss portion. The boss portion is connected to one end of the side baffle away from the first guiding plate, and the boss portion abuts against one end of the wind blocking rib away from the lower cover. This helps to improve the support stability of the wind blocking rib for the diversion shell.

[0019] In a possible implementation manner, the cooking device further includes a heating element disposed in the heating area. The heating element includes a heating plate and a control board; and / or,

[0020] The fan is an axial flow fan. The axial flow fan has the advantages of large air volume and small volume, and can save the space occupied in the accommodation cavity.

[0021] A cooking device provided by the present utility model can change the trajectory of the airflow through the diversion shell, enabling more airflow to enter the heating area to dissipate heat for the heating element, improving the heat dissipation effect, reducing the temperature rise of the heating element, and enabling long-time high-fire heating.

[0022] A cooking device provided by the present utility model, since the diversion shell is integrally connected to the upper cover, there is no need to separately produce, transport, and assemble the diversion shell, which simplifies the production and assembly operations. It can also improve the accuracy of the relative position between the diversion shell and the upper cover, improve the production efficiency of the cooking device, and help save costs.

[0023] A cooking device provided by the present utility model is different from the prior art in that it does not use wind pressure to make cold air flow to the heating area. Instead, under the guiding action of the diversion shell, the wall attachment effect of the air flow is utilized to change the movement trajectory of the air flow. Therefore, the problem of insufficient wind pressure affecting the heat dissipation effect can be solved, and more air flow can be guided into the heating area to dissipate heat for the heating element, thereby improving the heat dissipation effect of the cooking device.

[0024] In addition to the technical problems solved by the embodiments of the present utility model described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, other technical problems that can be solved by a cooking device provided by the embodiments of the present utility model, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manners. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic three-dimensional structure diagram of the cooking device provided by the embodiment of the present utility model with the panel removed;

[0027] Figure 2 It is a cross-sectional view of the cooking device provided by the embodiment of the present utility model;

[0028] Figure 3 For Figure 2 The enlarged view of the structure at A of

[0029] Figure 4 It is another cross-sectional view of the cooking device provided by the embodiment of the present utility model;

[0030] Figure 5 For Figure 4 The enlarged view of the structure at B of

[0031] Figure 6 It is a schematic three-dimensional structure diagram of the upper cover of the cooking device provided by the embodiment of the present utility model;

[0032] Figure 7 It is a partial schematic three-dimensional structure diagram of the upper cover of the cooking device provided by the embodiment of the present utility model.

[0033] DESCRIPTION OF THE REFERENCE NUMERALS:

[0034] 10 - lower cover;

[0035] 11 - Accommodating cavity;

[0036] 111 - Heating area;

[0037] 12 - Heat dissipation holes;

[0038] 13 - Windshield rib;

[0039] 14 - Air inlet holes;

[0040] 15 - Fixing posts;

[0041] 16 - Positioning posts;

[0042] 17 - Support feet;

[0043] 20 - Flow - guiding shell;

[0044] 21 - Air inlet cavity;

[0045] 22 - First guiding plate;

[0046] 23 - Second guiding plate;

[0047] 24 - Current - passing channel;

[0048] 25 - Side baffle;

[0049] 26 - Notch;

[0050] 27 - Boss part;

[0051] 30 - Fan;

[0052] 31 - Fixing frame;

[0053] 311 - Fixing holes;

[0054] 312 - Positioning holes;

[0055] 40 - Heating plate;

[0056] 41 - Coil holder;

[0057] 42 - Coil;

[0058] 50 - Control board;

[0059] 51 - IGBT module;

[0060] 60 - Upper cover;

[0061] 61 - Frame part;

[0062] 62 - Mounting holes;

[0063] 63 - Connecting part;

[0064] 631 - First connecting segment;

[0065] 632 - Second connection section;

[0066] 64 - Reinforcing rib;

[0067] 65 - Panel;

[0068] 66 - Operating panel part. Detailed implementation manners

[0069] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0070] When the cooking device is working, the heating plate and the control board inside are likely to generate high temperatures. If the heat continues to accumulate and cannot be effectively dissipated, it will cause circuit aging and even safety accidents.

[0071] To accelerate heat dissipation, a heat sink is usually fixed on the top of the IGBT module arranged on the top of the control board, and then in cooperation with a fan, the fan is used to accelerate the air flow to dissipate heat for the IGBT module. In current cooking devices, the air flow mainly utilizes wind pressure to blow the air introduced by the fan to the heating plate and the IGBT module. The air volume is relatively small, and the overall heat dissipation effect is poor, making it difficult to achieve high-power heating.

[0072] The present utility model provides a cooking device. By providing a diversion shell, the diversion shell includes a first guiding plate. The first guiding plate is located at the edge of the top of the air inlet cavity. The surface of the first guiding plate facing the air inlet cavity is a smoothly transitioning curved surface or inclined surface, enabling the diversion shell to play a role in guiding the air flow, thereby increasing the air flow wall attachment effect, changing the movement trajectory of the air flow, helping to guide more air flow to the heating area, improving the heat dissipation effect on the heating elements arranged in the heating area, and helping the cooking device to achieve high-power heating. In addition, since the diversion shell is integrally connected to the upper cover, the diversion shell and the upper cover become an integral part, eliminating the need for separate production, transportation, and cumbersome assembly operations of the diversion shell, and also being able to improve the accuracy of the relative position of the diversion shell and the upper cover, and improving the production efficiency of the cooking device.

[0073] The following describes the cooking device provided by the embodiments of the present utility model with reference to the drawings.

[0074] Refer to Figure 1 、 Figure 2 and Figure 3As shown in the figure, the present utility model provides a cooking device, including: a lower cover 10, an upper cover 60 and a diversion shell 20. There is a receiving cavity 11 inside the lower cover 10, and a heating area 111 is provided inside the receiving cavity 11. A heating element is arranged in the heating area 111; the upper cover 60 is covered on the top end of the lower cover 10.

[0075] Refer to Figure 2 、 Figure 3 and Figure 6 As shown, the diversion shell 20 is integrally connected to the upper cover 60. An air inlet cavity 21 is formed between the diversion shell 20 and the lower cover 10. A fan 30 is arranged in the air inlet cavity 21. There is a flow-through channel 24 on one side of the air inlet cavity 21 facing the heating area 111. The diversion shell 20 includes a first guiding plate 22. The first guiding plate 22 is located at the edge of the top of the air inlet cavity 21. The surface of the first guiding plate 22 facing the air inlet cavity 21 is a smoothly transitioned curved surface or inclined surface, so as to guide the air flow introduced into the air inlet cavity 21 by the fan 30 to the heating element.

[0076] The present utility model provides a cooking device. By arranging the diversion shell 20, the diversion shell 20 includes a first guiding plate 22. The first guiding plate 22 is located at the edge of the top of the air inlet cavity 21. The surface of the first guiding plate 22 facing the air inlet cavity 21 is a smoothly transitioned curved surface or inclined surface, so that the diversion shell 20 plays a role in guiding the air flow, thereby increasing the air flow wall attachment effect, changing the movement trajectory of the air flow, helping to guide more air flow to the heating area 111, improving the heat dissipation effect of the heating element arranged in the heating area 111, and helping the cooking device to achieve high-power heating. In addition, since the diversion shell 20 is integrally connected to the upper cover 60, the diversion shell 20 and the upper cover 60 become an integral part, eliminating the need for separate production, transportation, and cumbersome assembly operations of the diversion shell 20, and also being able to improve the accuracy of the relative position of the diversion shell 20 and the upper cover 60, and improving the production efficiency of the cooking device.

[0077] In a possible implementation manner, the upper cover 60 and the lower cover 10 can be relatively fixed by snap connection or screw connection.

[0078] Under the action of the fan 30, the external air flow enters from the bottom of the air inlet cavity 21 and moves upward. Under the guiding action of the first guiding plate 22, after the air flow collides with the first guiding plate 22, it moves along the inner wall surface of the first guiding plate 22. Since the surface of the first guiding plate 22 facing the air inlet cavity 21 is a smoothly transitioned curved surface or inclined surface, the flow direction of the air flow is changed, and the air flow changes from moving vertically upward to moving horizontally toward the flow-through channel 24, which is beneficial for more air flow to move toward the heating element and improves the heat dissipation efficiency.

[0079] In a possible implementation manner, the surface of the first guide plate 22 facing the air inlet cavity 21 is a smoothly transitioning curved surface, that is, the surface of the first guide plate 22 facing the air inlet cavity 21 is a smooth arc surface, and the first guide plate 22 can be an arc-shaped plate. The cross-section obtained by cutting the first guide plate 22 along the transverse direction or the longitudinal direction is arc-shaped.

[0080] In a possible implementation manner, the surface of the first guide plate 22 facing the air inlet cavity 21 is a smoothly transitioning inclined surface. For example, at least part of the surface of the first guide plate 22 facing the air inlet cavity 21 can be multiple inclined surfaces that are smoothly transitionally connected. The multiple inclined surfaces can be sequentially connected along the edge of the air inlet cavity 21, such that the cross-sectional shape of at least part of the first guide plate 22 along the transverse direction is a broken line shape, and the angle between two adjacent cross-sections is greater than 90°. In addition, the multiple inclined surfaces can also be sequentially connected along the axial direction of the fan 30, such that the cross-sectional shape of at least part of the first guide plate 22 along the longitudinal direction is a broken line shape, and the angle between two adjacent cross-sections is greater than 90°.

[0081] In this embodiment, the surface of the first guide plate 22 facing the air inlet cavity 21 is a smoothly transitioning curved surface or inclined surface. Compared with the case where the surface of the first guide plate 22 facing the air inlet cavity 21 has a sharp corner transition, such as a right-angle transition, the air flow resistance can be reduced, and the attenuation of the air flow velocity can be reduced, thereby helping to guide the air flow to the heating element and improving the heat dissipation effect of the cooking device.

[0082] The diversion shell 20 functions to guide the air flow entering the air inlet cavity 21 and change the movement direction of the air flow, such that the air flow leaves the air inlet cavity 21 from the flow-through channel 24 and enters the heating area 111, improving the utilization rate of the air flow.

[0083] Under the action of the diversion shell 20, the air flow will flow along the inner surface of the diversion shell 20 when flowing. Since there is friction and viscous force between the air flow and the inner surface of the diversion shell 20, the flow velocity of the air flow near the inner surface of the diversion shell 20 slows down, while the air flow velocity far from the inner surface of the diversion shell 20 is faster. This velocity difference causes the air flow to be pulled towards the inner surface of the diversion shell 20 under the action of the viscous force, thereby changing the movement trajectory of the air flow, helping to guide the air flow to the heating element, improving the heat dissipation effect of the cooking device, and helping to achieve high-power cooking.

[0084] Refer to Figure 2 and Figure 3 As shown, the first guide plate 22 is located on the side of the air inlet cavity 21 away from the heating area 111. On the one hand, it can block the air flow from flowing out of the side of the air inlet cavity 21 away from the heating area 111. On the other hand, it can change the movement trajectory of the air flow, such that more air flow enters the heating area 111 to dissipate heat for the heating element arranged in the heating area 111.

[0085] In a possible implementation, referring to Figure 6 and Figure 7 as shown, the upper cover 60 includes a frame portion 61. There is an installation hole 62 inside the frame portion 61. The diversion shell 20 is located inside the installation hole 62, and the diversion shell 20 and the inner wall of the installation hole 62 are connected by a connecting portion 63. Such a structure is due to the fact that the distance between the diversion shell 20 and the frame portion 61 is relatively far. In order to facilitate the fixation of the diversion shell 20, the connecting portion 63 is provided to connect between the diversion shell 20 and the inner wall of the installation hole 62, which not only ensures the correct installation position of the diversion shell 20 but also does not affect the fixation of the diversion shell 20, achieving the stability of the diversion shell 20 and the upper cover 60.

[0086] Referring to Figure 4 , Figure 6 and Figure 7 as shown, since the diversion shell 20 is located inside the installation hole 62, it avoids the diversion shell 20 from affecting the fixing panel 65 at the top of the installation hole 62, making it possible for the diversion shell 20 and the upper cover 60 to be integrally connected.

[0087] In a possible implementation, the inner wall of the frame portion 61 can also be directly connected to the outer wall surface of the diversion shell 20.

[0088] In a possible implementation, the diversion shell 20 and the upper cover 60 can be an integral structure formed by integral injection molding. There is no need to install the diversion shell 20 separately, and it can also avoid the problem of the diversion shell 20 being not properly installed, simplifying the assembly process of the cooking device and helping to improve the assembly efficiency of the cooking device.

[0089] In a possible implementation, referring to Figure 4 and Figure 5 as shown, there is a spacing between the diversion shell 20 and the panel 65. Or the diversion shell 20 is in contact with the panel 65. For example, the diversion shell 20 and the panel 65 are pasted through bonding parts such as glue to improve the stability of the fixation of the diversion shell 20.

[0090] In a possible implementation, the adjacent two inner walls of the installation hole 62 are respectively connected to the diversion shell 20, improving the stability of the fixation of the diversion shell 20.

[0091] In a possible implementation, the upper cover 60 further includes an operation board portion 66. The operation board portion 66 is integrally connected to the frame portion 61, and the operation board portion 66 is connected to one side edge of the frame portion 61.

[0092] In a possible implementation, referring to Figure 5 and Figure 7As shown, the flow guide shell 20 further includes a second guide plate 23. The second guide plate 23 is connected to the first guide plate 22, and the second guide plate 23 is located at the top of the air inlet cavity 21. The surface of the second guide plate 23 facing the air inlet cavity 21 is a plane or an inclined plane extending to the flow-through channel 24.

[0093] The second guide plate 23 is connected to one end of the first guide plate 22 far from the lower cover 10. The second guide plate 23 can prevent the airflow from diffusing upward in the air inlet cavity 21. The second guide plate 23 is beneficial to guiding the airflow toward the heating element in the heating area 111, so that more airflow enters the heating area 111.

[0094] The surface of the second guide plate 23 facing the air inlet cavity 21 is a plane or an inclined plane, so that the airflow moving to the second guide plate 23, under the guiding action of the second guide plate 23, moves laterally along the inner wall surface of the second guide plate 23 to the flow-through channel 24, improving the air volume entering the heating area 111.

[0095] In a possible implementation manner, the flow guide shell 20 further includes a side baffle 25. The side baffle 25 is connected to the first guide plate 22, and the side baffle 25 shields the edge of the air inlet cavity 21 away from the heating area 111.

[0096] The side baffle 25 can prevent the airflow introduced into the air inlet cavity 21 by the fan 30 from dispersing from the side of the air inlet cavity 21 away from the heating area 111, so that more airflow blows toward the heating area 111, the wind force is stronger, the heat dissipation efficiency of the heating element is improved, the timeliness of heat dissipation of the heating element is effectively improved, the temperature rise of the heating element is reduced, and the problem of overheating of the heating element is prevented.

[0097] In a possible implementation manner, the air inlet cavity 21 is a circular area, and the side baffle 25 can be located at the edge of the air inlet cavity 21.

[0098] In a possible implementation manner, referring to Figure 6 and Figure 7 as shown, the upper cover 60 further includes a reinforcing rib 64. The reinforcing rib 64 is connected between the surface of the first guide plate 22 facing away from the air inlet cavity 21 and the connecting portion 63. By providing the reinforcing rib 64, the connection strength between the flow guide shell 20 and the upper cover 60 is enhanced, which helps to prevent problems such as easy shaking and deformation of the flow guide shell 20 due to insufficient self-strength, and improves the fixing stability of the flow guide shell 20.

[0099] In a possible implementation manner, the number of the reinforcing ribs 64 can be 1, or can also be 2, 3 or more arranged at intervals along the edge of the flow guide shell 20. In addition, the reinforcing rib 64 also functions to support the panel 65, reduce the suspended area of the panel 65, and improve the bearing capacity of the panel 65.

[0100] In a possible implementation manner, the connecting portion 63 includes a first connecting segment 631 and a second connecting segment 632. The first connecting segment 631 is connected between the inner wall of the mounting hole 62 and the second connecting segment 632. The second connecting segment 632 is connected to the surface of the first guiding plate 22 facing away from the air inlet cavity 21. There is an included angle between the second connecting segment 632 and the first connecting segment 631. The connecting portion 63 is connected between the edge of the flow guiding shell 20 and the inner wall of the mounting hole 62. The connecting portion 63 plays a role in restricting the deformation of the side edge of the flow guiding shell 20, improving the connection stability between the flow guiding shell 20 and the upper cover 60, and ensuring the flow guiding effect of the flow guiding shell 20.

[0101] In a possible implementation manner, referring to Figure 1 and Figure 6 as shown, the flow guiding shell 20 further has a notch 26. The top of the fan 30 has a fixing bracket 31. Both ends of the fixing bracket 31 extend into the notch 26 respectively. The second guiding plate 23 shields at least part of the fixing bracket 31. The fixing bracket 31 is used to fix the fan 30. Fixing holes 311 and positioning holes 312 are formed at both ends of the fixing bracket 31.

[0102] The notch 26 forms an avoidance effect on the fixing bracket 31, facilitating the fixed connection of the fan 30 to the lower cover 10.

[0103] In a possible implementation manner, fixing posts 15 and positioning posts 16 are provided on the inner bottom wall of the lower cover 10. Both ends of the fixing bracket 31 respectively abut against the two fixing posts 15. The positioning post 16 extends into the positioning hole 312. By passing fasteners such as screws or bolts through the fixing holes 311 and the fixing posts 15, the connection between the fixing bracket 31 and the fixing posts 15 is realized, so that the fan 30 is stably fixed in the air inlet cavity 21.

[0104] In a possible implementation manner, along the thickness direction of the cooking device, the projection of the flow guiding shell 20 coincides with the projection of at least half of the fan 30. In this example, the fixing bracket 31 extends along the radial direction of the fan 30. The end of the second guiding plate 23 away from the first guiding plate 22 extends above the center position of the fan 30 and has a spacing from the fixing bracket 31. Such a structure helps to ensure the effective flow guiding effect of the flow guiding shell 20.

[0105] In a possible implementation manner, referring to Figure 2 and Figure 3 as shown, there is a gap between the second guiding plate 23 and the fan 30. The gap between the second guiding plate 23 and the fan 30 is configured as a flow through channel 24. The flow through channel 24 becomes the channel for the air flow in the air inlet cavity 21 to flow into the heating area 111.

[0106] In a possible implementation manner, referring to Figure 1 and Figure 4As shown, a wind shield rib 13 is provided on the inner bottom wall of the lower cover 10. The wind shield rib 13 surrounds the edge of the air inlet cavity 21, and the diversion shell 20 abuts against one end of the wind shield rib 13 away from the lower cover 10; refer to Figure 4 and Figure 5 As shown, the lower cover 10 is also provided with an air inlet hole 14, and the air inlet hole 14 penetrates the bottom wall surface of the air inlet cavity 21. The wind shield rib 13 can block the air flow from flowing out from the side of the air inlet cavity 21 away from the heat generating area 111, and also plays a role in supporting the diversion shell 20.

[0107] In a possible implementation manner, the wind shield rib 13 and the lower cover 10 are an integrally connected integral structure, or can also be a detachable split structure.

[0108] In a possible implementation manner, refer to Figure 1 and Figure 6 As shown, the diversion shell 20 further includes a boss portion 27. The boss portion 27 is connected to one end of the side baffle 25 away from the first guiding plate 22, and the boss portion 27 abuts against one end of the wind shield rib 13 away from the lower cover 10. By providing the boss portion 27, it helps to improve the stability of the support of the wind shield rib 13 on the diversion shell 20.

[0109] In a possible implementation manner, the side baffle 25 forms a mutation in the inner diameter at the boss portion 27. The boss portion 27 makes the end of the side baffle 25 away from the first guiding plate 22 have a larger inner diameter. The wind shield rib 13 is located on the side of the boss portion 27 facing the air inlet cavity 21, and the top end of the wind shield rib 13 forms a stable supporting effect with the boss portion 27.

[0110] In a possible implementation manner, the side baffle 25 forms a mutation in the inner diameter at the boss portion 27. The boss portion 27 makes the end of the side baffle 25 away from the first guiding plate 22 have a smaller inner diameter. The wind shield rib 13 is located on the side of the boss portion 27 facing away from the air inlet cavity 21, and the top end of the wind shield rib 13 forms a stable supporting effect with the boss portion 27.

[0111] Refer to Figure 3 and Figure 5 The direction indicated by the dotted arrow in

[0112] In a possible implementation manner, refer to Figure 1 and Figure 4As shown, the cooking device further includes a heating element disposed within the heating zone 111. The heating element includes a heating plate 40 and a control board 50. The overcurrent channel 24 faces the heating element, such that the cold air blown out from the overcurrent channel 24 blows directly against the heating element, thereby effectively ensuring the heat dissipation effect of the heating element.

[0113] The control board 50 is a printed circuit board (PCB for short). An insulated gate bipolar transistor (IGBT for short) module is installed on the control board 50. Since the IGBT module 51 is prone to overheating and damage during the use of the cooking device, in this application, guiding the cold air to the control board 50 helps to dissipate heat and cool down the IGBT module 51, ensures the normal operation of the IGBT module 51, and prevents the problem of damage to the control board 50 due to excessive temperature.

[0114] In a possible implementation manner, the fan 30 is an axial flow fan. The axial flow fan has the advantages of large air volume and small volume, and can save the space occupied in the accommodation cavity 11. The axial flow fan enables a large amount of air to move along the same direction as the fan shaft, realizing more air flow entering the air inlet cavity 21, which helps to improve the heat dissipation efficiency of the cooking device.

[0115] A plurality of feet 17 are connected to the bottom of the lower cover 10, such as 4 feet 17. The 4 feet 17 are respectively connected to the 4 corner positions of the lower cover 10, improving the placement stability of the cooking device. In addition, the feet 17 also keep a certain distance between the lower cover 10 of the cooking device and the tabletop on which the cooking device is placed, which is beneficial for air flow to enter the air inlet cavity 21 through the air inlet holes 14 opened on the bottom surface of the lower cover 10. A plurality of heat dissipation holes 12 are opened on the side wall of the lower cover 10, and the air flow carrying away the heat of the heating element flows out to the outside of the cooking device through the heat dissipation holes 12, realizing heat dissipation for the cooking device.

[0116] A cooking device provided by the present utility model includes, but is not limited to, an induction cooker, and may also be other electromagnetic heating devices, etc.

[0117] In the case where a cooking device provided by an embodiment of the present utility model is an induction cooker, the heating plate 40 is a coil disk. The heating plate 40 includes a disk frame 41 and a coil 42. The coil 42 is wound around the upper disk surface of the disk frame 41. Specifically, a plurality of wiring grooves are provided on the upper disk surface of the disk frame 41, and the coil 42 is disposed in the wiring grooves.

[0118] During cooking, a cooking container such as a cooking pot is placed on the panel 65. When an alternating current is applied to the heating plate 40, an alternating magnetic field is generated. The magnetic force lines of the alternating magnetic field pass through the bottom of the metal cooking pot, generating a large amount of eddy currents at the bottom of the cooking pot, thereby generating the heat required for cooking.

[0119] Reference Figure 1 and Figure 5 As shown, the cooking device further includes a lamp board disposed in the accommodating cavity 11 and a temperature measuring element disposed at the central position of the heating plate 40. Among them, the fan 30, the heating plate 40, the lamp board and the temperature measuring element are all electrically connected to the control board 50. The heating plate 40 heats cookware and the like placed on the cooking device. The control board 50 adjusts the power of the heating plate 40 according to the temperature detected by the temperature measuring element. The fan 30 is used to accelerate the convection speed of the air in the accommodating cavity 11 and the outside air, playing a role in heat dissipation and temperature reduction. Operating devices such as buttons and indicator lights and / or display devices can be provided on the lamp board. The operation panel part 66 corresponds to the position of the lamp board, facilitating the user to perform control operations on the operation panel part 66.

[0120] For a cooking device provided by the present utility model, the air flow trajectory can be changed through the diversion shell 20, so that more air flow enters the heating area 111 to dissipate heat for the heating element, improving the heat dissipation effect, reducing the temperature rise of the heating element, and enabling long-time high-fire heating.

[0121] For a cooking device provided by the present utility model, since the diversion shell 20 is integrally connected to the upper cover 60, there is no need to separately produce, transport, and assemble the diversion shell 20, simplifying the production and assembly operations. It can also improve the accuracy of the relative position between the diversion shell 20 and the upper cover 60, improving the production efficiency of the cooking device and helping to save costs.

[0122] For a cooking device provided by the present utility model, different from the prior art that uses wind pressure to make cold air flow to the heating area, under the guiding action of the diversion shell 20, the air flow attachment effect is utilized to change the movement trajectory of the air flow. Therefore, the problem of insufficient wind pressure affecting the heat dissipation effect can be solved, and more air flow can be guided into the heating area to dissipate heat for the heating element, thereby improving the heat dissipation effect of the cooking device.

[0123] In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "top end", "bottom end", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated position or component must have a specific orientation, be constructed and operated in a specific manner. Therefore, it should not be construed as a limitation to the present utility model.

[0124] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0125] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, which may be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0126] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0127] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A cooking device, characterized in that: include: A lower cover (10), wherein the lower cover (10) has a receiving cavity (11), wherein the receiving cavity (11) has a heating area (111), and wherein the heating area (111) is used to arrange a heating element; An upper cover (60), the upper cover (60) covers the top end of the lower cover (10); A guide shell (20), the guide shell (20) is integrally connected to the upper cover (60), an air inlet chamber (21) is formed between the guide shell (20) and the lower cover (10), a fan (30) is arranged in the air inlet chamber (21), the air inlet chamber (21) has a flow passage (24) on the side facing the heating zone (111), the guide shell (20) comprises a first guide plate (22), the first guide plate (22) is located at the edge of the top of the air inlet chamber (21), and the side of the first guide plate (22) facing the air inlet chamber (21) is a smoothly transitioned curved surface or inclined surface, so as to guide the airflow introduced by the fan (30) into the air inlet chamber (21) to the heating element.

2. The cooking device according to claim 1, characterized in that: The upper cover (60) comprises a frame portion (61), the frame portion (61) has a mounting hole (62), the flow guide shell (20) is located in the mounting hole (62), and the flow guide shell (20) and the inner wall of the mounting hole (62) are connected via a connecting portion (63).

3. The cooking device according to claim 2, characterized in that: The guide shell (20) further comprises a second guide plate (23), the second guide plate (23) being connected to the first guide plate (22), and the second guide plate (23) being located at the top end of the air inlet cavity (21), and a side of the second guide plate (23) facing the air inlet cavity (21) being a plane or an inclined surface.

4. The cooking device according to claim 3, characterized in that: The guide shell (20) further comprises a side baffle (25), wherein the side baffle (25) is connected to the first guide plate (22), and the side baffle (25) blocks an edge of a side of the air inlet cavity (21) away from the heating zone (111).

5. The cooking device according to claim 3, characterized in that: The upper cover (60) further comprises a reinforcing rib (64), wherein the reinforcing rib (64) is connected between a surface of the first guide plate (22) facing away from the air inlet cavity (21) and the connecting portion (63).

6. The cooking device according to claim 4, characterized in that The connecting portion (63) comprises a first connecting section (631) and a second connecting section (632), wherein the first connecting section (631) is connected between the inner wall of the mounting hole (62) and the second connecting section (632), and the second connecting section (632) is connected to a side of the first guide plate (22) facing away from the air inlet cavity (21), and an angle is formed between the second connecting section (632) and the first connecting section (631).

7. The cooking device according to any one of claims 1 to 6, characterized in that: The guide shell (20) also has a notch (26), and the top of the fan (30) has a fixing frame (31), and both ends of the fixing frame (31) extend into the notch (26) respectively.

8. The cooking device according to claim 4, characterized in that The inner bottom wall of the lower cover (10) is provided with a wind shield rib (13), the wind shield rib (13) surrounds the edge of the air inlet cavity (21), and the guide shell (20) abuts against the end of the wind shield rib (13) away from the lower cover (10); the lower cover (10) is also provided with an air inlet hole (14), and the air inlet hole (14) passes through the bottom wall surface of the air inlet cavity (21).

9. The cooking device according to claim 8, characterized in that The guide shell (20) further comprises a boss portion (27), wherein the boss portion (27) is connected to an end of the side baffle plate (25) away from the first guide plate (22), and the boss portion (27) abuts against an end of the wind shielding rib (13) away from the lower cover (10).

10. The cooking device according to any one of claims 1 to 6, characterized in that: It also includes a heating element arranged in the heating area (111), the heating element including a heating plate (40) and a control panel (50); and / or, The fan (30) is an axial flow fan.

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