Cooling air duct structure of cooking device and cooking device

Abstract

The invention provides a cooling air duct structure of a cooking device and the cooking device.The cooking device is provided with a cavity, the cooling air duct structure is arranged outside the cavity, the cooling air duct structure comprises a shell, a bottom plate and a flow guide component, and a left side flow channel space, a top flow channel space and a right side flow channel space which are sequentially communicated are formed between the shell and the outer wall of the cavity; a bottom flow channel space is formed between the bottom plate and the bottom wall of the cavity, and the flow guide component is arranged on at least part of a flowing path of airflow and used for guiding the airflow flowing through the heat dissipation air channel structure; according to the cooking device, the problem that airflow in a heat dissipation air channel of a conventional cooking device flows disorderly and irregularly is solved, the airflow guiding and guiding effects are optimized, the situations that the airflow is detained in the heat dissipation air channel, a flowing dead zone is generated and the like are avoided, the flowing resistance of the airflow in the heat dissipation air channel can be effectively reduced, and the service life of the cooking device is prolonged. The air flow can flow smoothly and orderly, so that the heat dissipation efficiency of the heat dissipation air duct structure is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking devices, and in particular to a heat dissipation air duct structure of a cooking device and a cooking device. Background Art

[0002] For cooking devices such as microwave ovens and steam ovens, in order to ensure the surface temperature of the cooking device's outer surface is consistent with the surface temperature of components installed inside the cooking device to avoid excessive temperature, a heat dissipation fan is generally installed on a back plate with multiple rows of through holes. The heat dissipation fan draws air from the outside of the cooking device into the inside of the cooking device through the through holes of the back plate under the action of fan blades to dissipate heat.

[0003] When the cooking device is powered on for heating, the heat generated by the heating sources and components inside the cooking device during operation is dissipated inside the cooking device, resulting in a relatively high internal ambient temperature. A portion of the internal ambient temperature is transferred to the outer surfaces of the components of the cooking device through heat conduction for heat dissipation, and another portion of the internal heat is dissipated from the through holes or shutters of the components of the cooking device through the action of the heat dissipation fan blades, forming a circulating air duct system. Because the temperature of the external air absorbed by the heat dissipation fan blades is at room temperature, the internal ambient temperature of the cooking device is lowered through internal and external convection, so that the performance of the components of the cooking device can reach the best effect and the surface temperature of the components can meet the safety specifications.

[0004] The currently commonly used heat dissipation duct structure, such as Figure 1 As shown, when the cooling fan is working, the wind sucked into the cooking device has no fixed air duct direction, and the wind inside the cooking device forms an irregular state. The surface temperature of components or parts near the cooling fan can be dissipated in time, while the surface temperature of components or parts far away from the cooling fan cannot be dissipated in time. As the running time increases, the internal temperature of the cooking device is too high, which can easily cause the surface temperature of components to be damaged due to excessive high temperature or the surface temperature of parts to be too high to scald users, thereby seriously affecting the performance of the whole machine and the customer's experience.

[0005] To this end, the prior art has optimized the relevant heat dissipation duct structure to a certain extent, such as the duct structure disclosed in patent CN104633727A, but its first side duct is connected to the bottom duct, so that the heat dissipation airflow has at least two flow paths. The first flow path is from the first side duct directly into the bottom duct and discharged to the outside, and the second flow path is through the first side duct, the top duct, the second side duct, and the bottom duct before being discharged to the outside.

[0006] However, in actual application, since the second flow path is long and has a poor guiding effect on the airflow, the wind resistance in the second flow path is too large, so that the airflow cannot flow in the second flow path in an orderly and smooth manner, or even cannot enter the second flow path smoothly;

[0007] This results in the heat dissipation airflow being mainly discharged through the first flow path, making the gas flow through the top and sides of the cavity (especially the second side air duct) extremely small, or even no airflow passing through, seriously affecting the heat dissipation effect on the top and sides of the cavity (especially the second side air duct), resulting in poor heat dissipation efficiency. Summary of the invention

[0008] In view of this, the present invention aims to provide a heat dissipation duct structure of a cooking device and a cooking device to solve the problems of excessive internal wind resistance and poor heat dissipation efficiency of the heat dissipation duct structure in the prior art.

[0009] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0010] A heat dissipation duct structure for a cooking device, the cooking device having a cavity, the heat dissipation duct structure being arranged outside the cavity, the heat dissipation duct structure comprising an outer shell, a bottom plate, and a flow guide component, a left flow channel space, a top flow channel space, and a right flow channel space being connected in sequence are formed between the outer shell and the outer wall of the cavity, a bottom flow channel space is formed between the bottom plate and the bottom wall of the cavity, the bottom flow channel space is connected to the right flow channel space, an inlet of the left flow channel space and an outlet of the bottom flow channel space are respectively connected to the external environment; the flow guide component is arranged on at least a portion of the flow path of the airflow, and is used to guide the airflow flowing through the heat dissipation duct structure.

[0011] Furthermore, the flow guide component includes a windshield strip, which is arranged on a side of the left flow channel space close to the cavity. The windshield strip seals the cavity and the bottom plate and can guide the airflow in the left flow channel space upward.

[0012] Furthermore, the guide component includes a guide plate, and the guide plate is arranged on the front side of the top flow channel space.

[0013] Furthermore, a guide flange is provided on the front side of the guide plate, and a guide bevel is provided on the left side of the guide plate, and the guide bevel extends in a direction from the right front to the left rear.

[0014] Furthermore, the flow guide component includes a flow guide cover, which extends from the right flow channel space to the bottom flow channel space, is connected to the cavity, and the inlet side of the flow guide cover is connected to the top flow channel space.

[0015] Furthermore, the drainage hood includes a hood body and a guide plate. The hood body is arranged in the right flow channel space, the hood body is connected to the outer wall of the cavity, one side of the guide plate is connected to the lower end of the hood body, and the other side extends from left to right in the bottom flow channel space.

[0016] Furthermore, the drainage cover includes a connecting transition plate, which is an arc-shaped plate, one side of which is connected to the lower end of the cover body, and the other side of which is connected to the left side of the guide plate.

[0017] Furthermore, a lower guide plate is arranged on a side of the guide plate away from the cover body, and the lower guide plate extends downwardly in an inclined manner.

[0018] Furthermore, the flow guide component includes a lower air guide cover, which is connected to the lower surface of the base plate, a groove body is arranged on the upper surface of the lower air guide cover, and the base plate is provided with through holes, at least some of the through holes are connected to the groove body, and the groove body has a notch connected to the external environment.

[0019] A cooking device comprises the heat dissipation air duct structure.

[0020] Compared with the prior art, the heat dissipation duct structure of a cooking device and the cooking device described in the present invention have the following advantages:

[0021] The heat dissipation air duct structure of a cooking device and the cooking device described in the present invention form a regular air duct surrounding the outside of the cavity by arranging multiple flow channels, and a flow guide component is arranged on the flow path of the airflow;

[0022] On the one hand, the problem of disordered and irregular airflow in the heat dissipation duct of conventional cooking devices is solved, and the uniformity of airflow inside the cooking device is improved, so that each component inside the cooking device can be timely cooled and cooled, avoiding the occurrence of damage to individual components due to excessive surface temperature due to poor heat dissipation or scalding users due to excessive surface temperature of components, so as to improve the performance of the whole machine and the user experience of customers; at the same time, the heat in the internal space of the cooking device (such as the heating cavity, the outer shell, the bottom plate, etc.) can be discharged to the outside of the cooking device in time, which will greatly improve the service life of the whole machine;

[0023] On the other hand, the guidance and diversion effects of the airflow are optimized to avoid airflow stagnation and dead zones in the heat dissipation duct. The flow resistance of the airflow in the heat dissipation duct can also be effectively reduced, so that the airflow can flow smoothly and orderly, thereby improving the heat dissipation efficiency of the heat dissipation duct structure.

[0024] In addition, the present application is directed to conventional cooking devices, and, under the premise of minimizing or avoiding major dismantling and modification of the component structures thereof, a heat dissipation duct structure having a guide component is provided, so that the scattered air duct inside the conventional cooking device is improved into an air duct with regular and orderly airflow direction and low wind resistance, so as to improve the heat dissipation effect and increase the heat dissipation efficiency.

[0025] At the same time, in the process of improving the conventional cooking device, the wind deflector, guide plate, guide cover, lower air guide cover and other air guide components in the present application can be directly assembled according to the assembly diagram, without the need for the user to handle and place them separately, which is simple and convenient, and the air duct is more stable and reliable when guiding the air. At the same time, all components of the heat dissipation air duct structure of the present application are detachable structures, which are easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 The heat dissipation duct structure (existing conventional technology) adopted by the applicant in the early stage;

[0028] Figure 2 A schematic diagram of the structure of a cooking device according to an embodiment of the present invention;

[0029] Figure 3 A diagram showing the flow state of airflow in the heat dissipation duct structure according to an embodiment of the present invention;

[0030] Figure 4 FIG. 1 is a flow state diagram of the airflow in the heat dissipation duct structure according to an embodiment of the present invention (relative to FIG. Figure 3 the other side’s perspective);

[0031] Figure 5 It is a structural explosion diagram of a cooking device according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic structural diagram of a guide plate according to an embodiment of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the drainage cover according to an embodiment of the present invention;

[0034] Figure 8 It is a schematic structural diagram of the lower air guide hood described in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1. Door body; 2. Front panel; 3. Outer shell; 4. Cooling fan; 5. Cavity; 51. Left side wall; 6. Rear plate; 7. Bottom plate; 8. Wind shield; 9. Guide plate; 91. Guide flange; 92. Guide bevel; 10. Drainage cover; 101. Cover body; 102. Guide plate; 103. Connecting transition plate; 104. Lower guide plate; 11. Lower air guide cover; 110. Trough body; 12. Left flow channel space; 13. Top flow channel space; 14. Right flow channel space. DETAILED DESCRIPTION

[0037] The inventive concepts of the present disclosure will be described below using terms commonly used by those skilled in the art to convey the essence of their work to other persons skilled in the art. However, these inventive concepts can be embodied in many different forms and should not be considered limited to the embodiments described herein.

[0038] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. Directional terms in the present invention, such as up, down, left, right, etc., are all referred to in the attached Figure 5 The coordinate system in is used as a reference, which is also consistent with people's cognition of the orientation of cooking devices in daily life.

[0039] The cyan arrows in the accompanying drawings of the present invention indicate the direction of air flow. Figure 4 The arrow lines related to the middle drainage cover 10 are dotted lines to indicate the flow direction of the airflow in the “perspective state” after the airflow enters the drainage cover 10 , so as to avoid being mistakenly understood as flowing along the left side wall of the drainage cover 10 .

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0041] In order to solve the problem of excessive internal wind resistance and poor heat dissipation efficiency of the heat dissipation duct structure in the prior art, this embodiment proposes a heat dissipation duct structure for a cooking device, as shown in the attached Figure 1-8As shown, the cooking device has a cavity 5 for accommodating and cooking food, and the heat dissipation duct structure is arranged outside the cavity 5. The heat dissipation duct structure includes a shell 3 and a bottom plate 7. A left flow channel space 12, a top flow channel space 13, and a right flow channel space 14 that are connected in sequence are formed between the shell 3 and the outer wall of the cavity 5. A bottom flow channel space (not shown) is formed between the bottom plate 7 and the bottom wall of the cavity 5. The inlet of the bottom flow channel space is connected to the outlet of the right flow channel space 14. The inlet of the left flow channel space 12 and the outlet of the bottom flow channel space are respectively connected to the external environment, so that the air of the external environment can flow along the left flow channel space 12, the top flow channel space 13, the right flow channel space 14, and the bottom flow channel space, so as to dissipate heat for the interior of the cooking device; in addition, the heat dissipation duct structure includes a guide component, which is arranged on at least part of the flow path of the airflow, and is used to guide the airflow flowing through the heat dissipation duct structure.

[0042] Thus, the present application forms a regular air duct surrounding the outside of the cavity 5 by setting a plurality of flow channels, and sets a flow guide component on the flow path of the airflow;

[0043] On the one hand, the problem of disordered and irregular airflow in the heat dissipation duct of conventional cooking devices is solved, and the uniformity of airflow inside the cooking device is improved, so that each component inside the cooking device can be timely cooled and cooled, avoiding the occurrence of damage to individual components due to excessive surface temperature due to poor heat dissipation or scalding users due to excessive surface temperature of components, so as to improve the performance of the whole machine and the user experience of customers; at the same time, the heat in the internal space of the cooking device (such as the heating cavity, the outer shell, the bottom plate, etc.) can be discharged to the outside of the cooking device in time, which will greatly improve the service life of the whole machine;

[0044] On the other hand, the guidance and diversion effects of the airflow are optimized to avoid airflow stagnation and dead zones in the heat dissipation duct. The flow resistance of the airflow in the heat dissipation duct can also be effectively reduced, so that the airflow can flow smoothly and orderly, thereby improving the heat dissipation efficiency of the heat dissipation duct structure.

[0045] The left flow channel space 12 of the present application can maintain the electrical chamber structure of the conventional cooking device, and also maintain the heat dissipation fan 4 and its conventional setting, without changing the electrical chamber, heat dissipation fan 4 and other structures of the existing cooking device; accordingly, for the setting of the electrical chamber of the existing cooking device, the prior art can be directly referred to, and the present application will not elaborate. Of course, the left flow channel space 12 of the present application can be directly regarded as an electrical chamber. For the setting of the heat dissipation fan 4, the cooking device has a rear plate 6, and the rear plate 6 is provided with a heat dissipation fan 4, and the air outlet of the heat dissipation fan 4 can be connected to the left flow channel space 12, for sending air from the external environment into the left flow channel space 12; the heat dissipation fan 4 is fixedly connected to the rear plate 6, specifically, the heat dissipation fan 4 can be connected to the inner side wall of the rear plate 6, and is correspondingly arranged in the inner space of the left flow channel space 12, or it can be connected to the outer side wall of the rear plate 6, and is correspondingly arranged in the outer space of the cooking device.

[0046] In the present application, one guide component can be set at a specific position, or different guide components can be set at different positions. Accordingly, the shape and structure of the guide components at different positions can be different to adapt to the guide requirements at different positions.

[0047] The guide component includes a windshield strip 8, which is arranged on the side of the left flow channel space 12 close to the cavity 5. The windshield strip 8 seals the cavity 5 and the bottom plate 7, and can guide the airflow in the left flow channel space 12 upward. Therefore, by arranging the windshield strip 8 in the left flow channel space 12, on the one hand, it is prevented that the airflow flows directly from the left flow channel space 12 into the bottom flow channel space, causing unnecessary overflow of the airflow, and on the other hand, the airflow in the left flow channel space 12 can flow smoothly upward along the windshield strip 8 into the top flow channel space 13.

[0048] Correspondingly, in terms of spatial structure, the cavity 5 (right side wall), the bottom plate 7, the outer shell 3 (left side plate), and the front panel 2 together enclose the left flow channel space 12. The wind shield 8 is arranged between the right side wall of the cavity 5 and the bottom plate 7 to play a role in sealing and guiding.

[0049] It should be noted that the left flow channel space 12 in the present application is not directly connected to the bottom flow channel space, that is, the airflow cannot flow directly from the left flow channel space 12 into the bottom flow channel space, but must pass through the top flow channel space 13 and the right flow channel space 14 before flowing into the bottom flow channel space.

[0050] The guide component includes a guide plate 9, which is arranged at the front side of the top flow channel space 13 (i.e., the side close to the front panel 2) and is used to guide the airflow in the top flow channel space 13. Specifically, a guide flange 91 is arranged at the front side of the guide plate 9, and a guide bevel 92 is arranged at one side of the guide plate 9 close to the right flow channel space 14 (i.e., the left side of the guide plate 9). The guide bevel 92 extends from the right front to the left rear, so that a part of the airflow passing through the guide plate 9 flows as far as possible to the rear.

[0051] The reason why the guide plate 9 is designed in this way is that in the left flow channel space 12, for the electrical chamber of the conventional cooking device, the larger electrical components such as the magnetron are close to the heat dissipation fan 4 and occupy the middle area of ​​the left flow channel space 12, so that there is a certain relatively open space in the front area of ​​the left flow channel space 12, and a part of the airflow in the left flow channel space 12 will be concentrated to the front side and enter the front area of ​​the top flow channel space 13, which will cause the airflow distribution between the front area and the rear area of ​​the top flow channel space 13 to be uneven. For this reason, the present application sets the guide plate 9 at the front side of the top flow channel space 13, and guides a part of the airflow to the rear area of ​​the top flow channel space 13 without completely blocking the airflow from right to left at the guide plate 9, so as to improve the uniformity of the airflow distribution between the front area and the rear area of ​​the top flow channel space 13, and can also effectively avoid the generation of stagnation and flow dead zone in the top flow channel space 13, so that each component located at the top of the cavity 5 and far away from the heat dissipation fan 4 can be well cooled.

[0052] The flow guide component includes a drainage cover 10, and the drainage cover 10 extends from the right flow channel space 14 to the bottom flow channel space. The drainage cover 10 is connected to the cavity 5, and the inlet side of the drainage cover 10 is connected to the top flow channel space 13, so that after the airflow in the top flow channel space 13 enters the drainage cover 10, the drainage cover 10 is used to smoothly introduce the airflow from the right flow channel space 14 to the bottom flow channel space. Correspondingly, since the present application is also intended to simplify the complexity of the structure and assembly of the drainage cover 10 as much as possible, the drainage cover 10 is designed as a structure similar to a plate body, and "the airflow enters the drainage cover 10" is to enter the space between the drainage cover 10 and the left side wall 51 of the cavity 5, and flows along the drainage cover 10.

[0053] Specifically, the drainage cover 10 includes a cover body 101 and a guide plate 102. The cover body 101 is disposed in the right flow channel space 14. The cover body 101 is connected to the outer wall of the cavity 5. One side of the guide plate 102 is connected to the lower end of the cover body 101, and the other side extends from left to right in the bottom flow channel space. Therefore, the airflow entering the right flow channel space 14 can flow downward along the cover body 101 to the guide plate 102, and flow smoothly into the bottom flow channel space under the guidance of the guide plate 102.

[0054] Preferably, the guide plate 102 has a certain length in the left-right direction. The present application recommends that the guide plate 102 can extend to the central area of ​​the bottom plate 7 so that the airflow can flow a sufficient length in the bottom flow channel space, and then the airflow is dispersed and discharged to improve the heat dissipation effect near the bottom of the cooking device.

[0055] Furthermore, the guide cover 10 includes a connecting transition plate 103, which is an arc-shaped plate in accordance with the principle of fluid mechanics, one side of the connecting transition plate 103 is connected to the lower end of the cover body 101, and the other side is connected to the left side of the guide plate 102; or, the guide plate 102 is connected to the lower end of the cover body 101 through the connecting transition plate 103. Thus, the airflow can flow more smoothly, fluently and orderly during the process of turning from the right flow channel space 14 to the bottom flow channel space, avoiding stagnation or flow dead zone of the airflow during the turning process, and also helping to further reduce the gas flow resistance of the heat dissipation duct structure.

[0056] A lower guide plate 104 is provided on one side of the guide plate 102 away from the cover body 101. The lower guide plate 104 extends downwardly at an angle, so that the airflow guided by the guide cover 10 can flow smoothly downward toward the bottom plate 7 after flowing into the bottom flow channel space, so as to facilitate the airflow to be dispersed on the bottom plate 7, which helps to improve the uniformity of the distribution of the airflow at the bottom plate 7, and correspondingly also helps to uniformly dissipate heat, improve the heat dissipation effect, and improve the heat dissipation efficiency.

[0057] Preferably, the entire drainage hood 10 consisting of the hood body 101, the guide plate 102, the connecting transition plate 103, and the lower guide plate 104 is integrally formed, such as integrated stamping molding, integrated casting molding in the field of metal material processing, integrated injection molding in the field of plastic material processing, etc., which is convenient for actual production and processing and also helps to ensure its mechanical strength.

[0058] The flow guide component includes a lower air guide cover 11, and the lower air guide cover 11 is connected to the lower surface of the base plate 7. Accordingly, a groove body 110 is arranged on the upper surface of the lower air guide cover 11, and through holes are arranged on the base plate 7, at least some of the through holes are connected to the groove body 110, and the groove body 110 has a notch connected to the external environment, so that the airflow flowing from the air guide cover 10 to the base plate 7 can enter the groove body 110 of the lower air guide cover 11 through the through holes after being dispersed on the base plate 7, and be discharged into the external environment along the notch. Of course, it can also be directly discharged into the external environment through the through holes that are not connected to the groove body 110.

[0059] Of course, all the through holes of the bottom plate 7 may also be connected to the trough body 110 , so that the cooking device is exhausted only through the lower air guide hood 11 .

[0060] Since the present application prefers that the guide plate 102 can extend to the central area of ​​the base plate 7, the lower air guide cover 11 is also recommended to be arranged in the central area of ​​the lower surface of the base plate 7, so that after the airflow is dispersed on the base plate 7, part of the airflow can directly enter the lower air guide cover 11 for discharge.

[0061] From the introduction of the above content, it can be seen that: the present application is mainly aimed at conventional cooking devices. Under the premise of minimizing or avoiding major dismantling and modification of its component structures, a heat dissipation duct structure with a guide component is set up, so that the scattered air duct inside the conventional cooking device is improved into an air duct with regular and orderly airflow and low wind resistance, so as to improve the heat dissipation effect and improve the heat dissipation efficiency.

[0062] At the same time, in the process of improving the conventional cooking device, the wind deflector strip 8, the guide plate 9, the guide cover 10, the lower air guide cover 11 and other air guide components in the present application can be directly assembled according to the assembly diagram, without the need for the user to handle and place them separately, which is simple and convenient, and the air duct is more stable and reliable when guiding the air. At the same time, all components of the heat dissipation air duct structure of the present application are detachable structures, which are easy to replace.

[0063] In the present invention, any cooking device, such as a microwave oven, a steam oven, etc., can include the heat dissipation duct structure described in this embodiment. Based on the relevant structures and assembly relationships provided in this application, the cooking device also includes conventional components including a door body 1, a cavity 5, and an electronic control component. Since these conventional components can all adopt existing technologies, they will not be described in detail here.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation duct structure of a cooking device, characterized in that: The cooking device comprises a cavity (5), the heat dissipation duct structure is arranged outside the cavity (5), the heat dissipation duct structure comprises an outer shell (3), a bottom plate (7), and a flow guide component, a left flow channel space (12), a top flow channel space (13), and a right flow channel space (14) which are connected in sequence are formed between the outer shell (3) and the outer wall of the cavity (5), a bottom flow channel space is formed between the bottom plate (7) and the bottom wall of the cavity (5), the bottom flow channel space is connected to the right flow channel space (14), and the inlet of the left flow channel space (12) and the outlet of the bottom flow channel space are respectively connected to the external environment; the flow guide component is arranged on at least part of the flow path of the airflow, and is used to guide the airflow flowing through the heat dissipation duct structure.

2. The heat dissipation duct structure of a cooking device according to claim 1, characterized in that: The flow guide component comprises a windshield strip (8), which is arranged on a side of the left flow channel space (12) close to the cavity (5), and the windshield strip (8) seals between the cavity (5) and the bottom plate (7), and can guide the airflow in the left flow channel space (12) upwards.

3. The heat dissipation duct structure of a cooking device according to claim 1, characterized in that: The flow guide component comprises a flow guide plate (9), and the flow guide plate (9) is arranged at the front side of the top flow channel space (13).

4. The heat dissipation duct structure of a cooking device according to claim 3, characterized in that: The front side of the guide plate (9) is provided with a guide flange (91), and the left side of the guide plate (9) is provided with a guide bevel (92), and the guide bevel (92) extends in a direction from the right front to the left rear.

5. The heat dissipation duct structure of a cooking device according to claim 1, characterized in that: The flow guide component comprises a flow guide cover (10), the flow guide cover (10) extends from the right flow channel space (14) to the bottom flow channel space, the flow guide cover (10) is connected to the cavity (5), and the inlet side of the flow guide cover (10) is connected to the top flow channel space (13).

6. The heat dissipation duct structure of a cooking device according to claim 5, characterized in that: The drainage cover (10) comprises a cover body (101) and a guide plate (102); the cover body (101) is arranged in the right flow channel space (14); the cover body (101) is connected to the outer wall of the cavity (5); one side of the guide plate (102) is connected to the lower end of the cover body (101), and the other side extends from left to right in the bottom flow channel space.

7. The heat dissipation duct structure of a cooking device according to claim 6, characterized in that: The drainage cover (10) comprises a connecting transition plate (103), wherein the connecting transition plate (103) is an arc-shaped plate, one side of the connecting transition plate (103) is connected to the lower end of the cover body (101), and the other side is connected to the left side of the guide plate (102).

8. The heat dissipation duct structure of a cooking device according to claim 6, characterized in that: A lower guide plate (104) is provided on a side of the guide plate (102) away from the cover body (101), and the lower guide plate (104) extends downwardly in an inclined manner.

9. The heat dissipation duct structure of a cooking device according to claim 1, characterized in that: The air guide component comprises a lower air guide cover (11), the lower air guide cover (11) is connected to the lower surface of the bottom plate (7), a groove body (110) is arranged on the upper surface of the lower air guide cover (11), the bottom plate (7) is provided with through holes, at least part of the through holes are connected to the groove body (110), and the groove body (110) has a notch connected to the external environment.

10. A cooking device, characterized in that: The cooking device comprises the heat dissipation duct structure according to any one of claims 1-9.

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