Cooking apparatus

Abstract

The application discloses a cooking device, comprising a box, a combustion part, a burner and a fan, a first cavity is formed in the box, the combustion part is arranged outside the box, a second cavity is formed in the combustion part, the second cavity is communicated with the first cavity, the burner is arranged in the second cavity, the burner is connected with a gas pipeline and is suitable for combustion in the second cavity, and the fan is arranged in the combustion part and is suitable for providing airflow into the second cavity, so that the heat circulation efficiency in the steaming oven can be improved and the cooking time can be shortened.

Description

Technical Field

[0001] This application relates to the field of kitchen utensils, and in particular to a cooking apparatus. Background Technology

[0002] In related technologies, due to an imperfect heat circulation mechanism in the design and use of steam ovens, heat cannot be distributed quickly and evenly within the oven cavity, preventing food from achieving the desired cooking effect within the ideal time. This low heat circulation efficiency severely affects the efficiency of steam ovens, causing inconvenience to users, prolonging the cooking cycle, and increasing user waiting time. Therefore, improving the heat circulation efficiency of steam ovens is the technical problem that this application aims to solve. Summary of the Invention

[0003] This application aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this application is to provide a cooking apparatus that can improve the heat circulation efficiency within a steam oven and shorten cooking time.

[0004] A cooking apparatus according to an embodiment of this application includes: a housing with a first cavity formed therein; a combustion section disposed on the outside of the housing with a second cavity formed inside, the second cavity communicating with the first cavity; a burner disposed in the second cavity, the burner being connected to a gas pipeline and adapted to burn within the second cavity; and a fan disposed in the combustion section and adapted to provide airflow into the second cavity.

[0005] According to the cooking apparatus of this application embodiment, a burner is connected to a gas pipeline. When the gas burns in the burner, it releases heat, which accumulates in a second chamber, providing an energy source for heat transfer. Furthermore, a fan provides airflow into the second chamber, which is connected to the first chamber. The heated airflow from the second chamber is transferred to the first chamber, allowing the heat from the second chamber to be distributed throughout the first chamber. Moreover, when airflow exists within the first chamber, hot air continuously mixes with cold air, further improving heat utilization efficiency and preventing localized overheating or undercooling, thereby improving heat circulation efficiency. Due to this improved efficiency, the food in the first chamber can be heated more quickly and evenly, allowing the cooking process to be completed faster and shortening cooking time.

[0006] According to some embodiments of the cooking apparatus of this application, the combustion unit includes: a cover plate disposed on the side wall of the housing and defining a second cavity between the cover plate and the housing, the side wall of the housing having an air outlet communicating with the first cavity and the second cavity, and the cover plate having an air supply hole facing the fan.

[0007] The cooking apparatus according to some embodiments of this application further includes: a fan housing, the fan housing being connected to the cover plate and defining a third cavity communicating with the first cavity between the fan housing and the cover plate, the third cavity communicating with the second cavity through the air supply hole, and the impeller of the fan being rotatably housed in the third cavity.

[0008] According to some embodiments of the cooking apparatus of this application, the housing has an air inlet that communicates the first cavity and the third cavity, and the air inlet is disposed on at least one side of the air outlet in the width direction.

[0009] According to some embodiments of the cooking apparatus of this application, an air outlet area is formed on the side wall of the housing, and a plurality of air outlets are provided in the air outlet area, which is located above the burner.

[0010] According to some embodiments of the cooking apparatus of this application, a combustion zone with a height of h is formed above the burner, and the height of the combustion zone is not less than 1 / 3 of the flame length; the distance between the lower edge of the air outlet zone and the burner is L1, and satisfies: L1≥h.

[0011] The cooking apparatus according to some embodiments of this application further includes: a protective shell disposed on the outside of the fan housing and defining a cooling cavity for accommodating the fan.

[0012] The cooking apparatus according to some embodiments of this application further includes: a flue, the flue being connected to the first cavity and / or the second cavity, and the cooling cavity being connected to the flue.

[0013] The cooking apparatus according to some embodiments of this application further includes: a housing having an inner cavity formed therein for accommodating the box body, the cover plate, the fan housing, and the protective shell.

[0014] According to some embodiments of the cooking apparatus of this application, heat dissipation holes are formed on the housing, and the protective shell is open toward the heat dissipation holes.

[0015] The cooking apparatus according to some embodiments of this application further includes: a microwave unit disposed in the housing.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the cooking apparatus according to an embodiment of this application;

[0019] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure in the diagram;

[0020] Figure 3 yes Figure 1 Schematic diagram of the BB cross-sectional structure in the middle;

[0021] Figure 4 This is a schematic diagram of the airflow structure in the cooking device of this application (AA section).

[0022] Figure 5 This is a schematic diagram of the airflow structure in the CC section of the cooking device according to an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the cooking device and gas stove according to an embodiment of this application.

[0024] Figure label:

[0025] 100. Cooking equipment;

[0026] 1. Box body; 11. First cavity;

[0027] 2. Combustion section; 21. Second chamber; 22. Burner; 23. Gas pipeline; 24. Cover plate; 241. Air outlet; 242. Gas supply hole; 25. Air outlet area;

[0028] 3. Fan;

[0029] 4. Fan casing. 41. Third cavity; 42. Air inlet;

[0030] 5. Protective shell; 51. Cooling cavity;

[0031] 6. Smoke exhaust duct;

[0032] 7. Housing; 71. Internal cavity; 72. Heat dissipation holes;

[0033] 8. Gas stove. Detailed Implementation

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] The following is for reference. Figures 1-3A cooking apparatus 100 according to an embodiment of this application is described.

[0036] The cooking apparatus 100 according to an embodiment of this application includes a housing 1, a combustion section 2, a burner 22, and a fan 3. A first cavity 11 is formed inside the housing 1. The combustion section 2 is disposed on the outside of the housing 1. A second cavity 21 is formed inside the combustion section 2. The second cavity 21 is connected to the first cavity 11. The burner 22 is disposed inside the second cavity 21. The burner 22 is connected to a gas pipeline 23 and is adapted to burn in the second cavity 21. The fan 3 is disposed in the combustion section 2 and is adapted to provide airflow to the second cavity 21.

[0037] The burner 22 is located in the second chamber 21 of the combustion section 2 and is connected to the gas pipeline 23. When the gas burns in the burner 22, it releases a large amount of heat energy, which can be accumulated in the second chamber 21, providing an energy source for heat transfer.

[0038] Furthermore, the fan 3 is installed in the combustion section 2 to provide airflow into the second cavity 21. The oxygen in the airflow can promote complete combustion and make the heat generated by the combustion section 2 evenly distributed in the second cavity 21. This prevents the heat generated by the burner 22 from forming a local high-temperature zone in the second cavity 21 without airflow disturbance, while other areas in the second cavity 21 are not hot enough. The airflow generated by the fan 3 can break this uneven heat distribution and make the heat spread rapidly in the second cavity 21. At the same time, the airflow carrying heat can flow in the direction connected to the first cavity 11. Since the second cavity 21 is connected to the first cavity 11, the first cavity 11 can be understood as a cooking cavity. The airflow becomes the carrier of heat transfer, transporting the heat generated by combustion from the second cavity 21 of the combustion section 2 to the first cavity 11.

[0039] During normal operation of the steam oven, heat is generated from the burner 22 and continuously transported to the first cavity 11 by the airflow driven by the fan 3, which can more effectively distribute the heat throughout the first cavity 11. Moreover, when there is airflow inside the first cavity 11, the hot air inside the first cavity 11 will continuously mix with the cold air, further improving the heat utilization efficiency and avoiding local overheating or overcooling within the first cavity 11, thereby improving the heat circulation efficiency.

[0040] Due to the improved heat circulation efficiency, the food inside the first cavity 11 can be heated more quickly and evenly, avoiding the need for heat to cover all parts of the food for a long time. This also avoids the situation where uneven heat distribution may result in some parts of the food being cooked while others are not yet in the ideal cooking state. The efficient heat circulation ensures that all parts of the food can receive enough heat in time, allowing the cooking process to be completed faster and thus shortening the cooking time.

[0041] According to some embodiments of the present application, the cooking apparatus 100 includes a combustion section 2 including a cover plate 24, which is disposed on the side wall of the housing 1 and defines a second cavity 21 between the housing 1 and the housing 1. The side wall of the housing 1 has an air outlet 241 that connects the first cavity 11 and the second cavity 21. The cover plate 24 has an air supply hole 242 that is directly opposite to the fan 3.

[0042] The air outlet 241 formed on the side wall of the housing 1 connects the first cavity 11 and the second cavity 21, allowing air from the first cavity 11 to enter the second cavity 21. It is understood that when the cooking device 100 is started, the burner 22 in the second cavity 21 ignites the gas, and the heat inside the second cavity 21 is high. In order to avoid the high-heat air blowing directly onto the food in the first cavity 11 and causing it to burn, the air outlet 241 is set to blow air from the first cavity 11 to the second cavity 21. This can draw out the cold air from the first cavity 11 when the cooking device 100 is started and mix it with the hot air in the second cavity 21, avoiding local overheating, and also preparing for the subsequent redistribution of heat.

[0043] When the fan 3 is working, it generates a directional airflow. The air supply port 242 is positioned directly opposite the fan 3, ensuring that the air in the first cavity 11 can be drawn out by the fan 3 and enter the second cavity 21 through the air supply port 242. This avoids airflow scattering and energy loss, allowing the energy of the airflow to be effectively utilized. The airflow drawn out by the fan 3 enters the second cavity 21 through the air supply port 242. Since the air outlet 241 is the connection between the first cavity 11 and the second cavity 21, a pressure difference will be formed around the air outlet 241. The pressure difference will drive the air from the first cavity 11 through the air outlet 241 into the second cavity 21, improving the airflow efficiency between the first cavity 11 and the second cavity 21.

[0044] The cooking apparatus 100 according to some embodiments of this application further includes a fan housing 4, the fan housing 4 being connected to a cover plate 24 and defining a third cavity 41 communicating with a first cavity 11 between the fan housing 4 and the cover plate 24, the third cavity 41 communicating with a second cavity 21 through an air supply hole 242, and the impeller of the fan 3 being rotatably housed in the third cavity 41.

[0045] Furthermore, when the cooking device 100 is started, the cold air in the first chamber 11 is drawn out and mixed with the hot air in the second chamber 21. The hot air in the second chamber 21 is connected to the third chamber 41 through the air supply hole 242, and then enters the second chamber 21 through the third chamber 41. The gas mixes the hot and cold air in the second chamber 21 and the third chamber 41, avoiding the direct entry of heated air into the first chamber 11, which could easily lead to scorching. At the same time, it accelerates the heat circulation between the first chamber 11, the second chamber 21 and the third chamber 41, promotes the thermal balance in the entire cooking device 100, and can more quickly and evenly distribute the heat generated by the burner 22 in the first chamber 11, improving the heat utilization efficiency, reducing the uneven temperature phenomenon during the cooking process, and helping to improve the cooking quality and shorten the cooking time.

[0046] According to some embodiments of the present application, the cooking apparatus 100 has an air inlet 42 formed on the housing 1, which connects the first cavity 11 and the third cavity 41. The air inlet 42 is disposed on at least one side of the air outlet 241 in the width direction.

[0047] Specifically, the air inlet 42 formed on the housing 1 connects the first cavity 11 and the third cavity 41, and is located on at least one side of the air outlet 241 in the width direction. This, in conjunction with the existing air outlet 241 and the communication structure between the cavities, further improves the air circulation path within the entire cooking device 100. Under the action of the fan 3, cold air is drawn from the first cavity 11 and mixed with the heated air in the second cavity 21. The mixed air then enters the third cavity 41 for further homogenization, and from the air inlet 42, it enters the first cavity 11 from the third cavity 41, forming a circulation loop. This allows air to flow orderly between the cavities, enhancing the overall integrity and continuity of the air circulation.

[0048] Furthermore, the air inlet 42 is located on at least one side of the air outlet 241 in the width direction, allowing air to enter and exit each cavity from different positions, forming a three-dimensional air circulation path. This enables air to more comprehensively cover different areas of each cavity, promoting the integrity and balance of air circulation throughout the entire device. Air near the edge or center of the cooking device 100 can participate more effectively in the circulation process, avoiding situations where airflow is poor or heat transfer is inadequate in certain areas.

[0049] According to some embodiments of the present application, the cooking apparatus 100 has an air outlet area 25 formed on the side wall of the housing 1, and a plurality of air outlets 241 are provided in the air outlet area 25. The air outlet area 25 is located above the burner 22.

[0050] Multiple air outlets 241 are provided in the air outlet area 25, which increases the number of air flow channels from the first cavity 11 to the second cavity 21. Under the condition that other conditions remain unchanged, more air flows from the first cavity 11 to the second cavity 21, increasing the overall air intake. When air flows from the first cavity 11 to the second cavity 21, it will be subject to airflow resistance. Multiple air outlets 241 can effectively disperse the resistance. Each air outlet 241 shares a portion of the air flow. Compared with a single air outlet 241 bearing the pressure of the entire air flow, multiple air outlets 241 can make the air pass through more smoothly.

[0051] The air outlet area 25 is located above the burner 22. It is understood that the burner 22 generates a large amount of heat when it is working. Hot air has the characteristic of rising naturally. With the air outlet area 25 located above the burner 22, the air in the first chamber 11 will flow more easily to the second chamber 21 under the influence of the rising airflow of hot air generated near the burner 22. This provides additional power for the air to enter the second chamber 21 from the first chamber 11, prompting more air to enter the second chamber 21 through multiple air outlets 241. The thermodynamic driving mechanism, combined with multiple air outlets 241, greatly increases the air intake. As the air intake from the first chamber 11 to the second chamber 21 increases, the thermal circulation efficiency increases.

[0052] According to some embodiments of the cooking apparatus 100 of this application, a combustion zone with a height of h is formed above the burner 22, and the height of the combustion zone is not less than 1 / 3 of the flame length; the distance between the lower edge of the air outlet area 25 and the burner 22 is L1, and satisfies: L1≥h.

[0053] It is understandable that a combustion zone with a height of h is formed above the burner 22, and is not less than 1 / 3 of the flame length. This provides the necessary space height for the normal combustion of the flame. During the combustion process, the flame needs to develop in a relatively stable and suitable space. The setting of the combustion zone ensures that the flame has enough vertical space to complete the combustion reaction, avoiding the possibility that insufficient combustion zone height may cause the flame to be restricted by the upper structure, resulting in the combustion process not being able to proceed fully and affecting the combustion effect and efficiency.

[0054] The distance between the lower edge of the air outlet area 25 and the burner 22 is L1, and L1 ≥ h. When the fan 3 is working, the fan 3 will generate airflow in the cavity, which tends to draw air from the cavity. Since L1 is not less than h, the drawn-out air has enough distance to change its flow path or speed before reaching the flame; this avoids L1 being too small, which would cause the drawn-out air to directly impact the root of the flame. The root of the flame is the core area of ​​flame combustion, which requires a stable oxygen supply and combustion environment. It is important to prevent the air from directly impacting the root of the flame, disrupting the combustion balance there, causing a sudden drop in temperature, resulting in poor combustion effect and lower combustion efficiency. Poor combustion effect may lead to uneven heating of food because the flame cannot stably provide heat to the cooking area; reduced combustion efficiency will increase energy consumption and prolong cooking time.

[0055] The cooking apparatus 100 according to some embodiments of this application further includes a protective shell 5, which is disposed on the outside of the fan housing 4 and defines a cooling cavity 51 for accommodating the fan 3.

[0056] The protective shell 5 is located outside the fan housing 4, providing physical protection for the fan 3 and preventing damage to the fan 3 and its related components. This ensures the fan 3 can operate normally and stably, thereby guaranteeing the normal operation of the entire cooking device 100. The protective shell 5 defines a cooling cavity 51 for housing the fan 3. During operation, the fan 3 generates heat due to the rotation of the impeller and the operation of the motor. If the heat cannot be dissipated in time, it will accumulate inside the fan 3, causing the fan 3 temperature to rise. Excessive temperature will adversely affect the performance of the fan 3, potentially reducing motor efficiency and shortening motor lifespan. The cooling cavity 51 allows air to flow inside, forming a... With a relatively independent heat dissipation space, when the fan 3 is working, its rotation will drive the airflow in the cooling chamber 51. At the same time, due to the operation of other components inside the cooking device 100, such as the airflow disturbance generated by the burner 22, the air inside and outside the cooling chamber 51 may also be exchanged. Through this airflow, the heat generated by the fan 3 can be carried out of the cooling chamber 51 with the air and dissipated to the external environment of the cooking device 100, thereby effectively reducing the temperature of the fan 3, maintaining the fan 3 within a more suitable operating temperature range, ensuring the stable performance of the fan 3, extending the service life of the fan 3, and thus improving the reliability and durability of the entire cooking device 100.

[0057] The cooking apparatus 100 according to some embodiments of this application further includes: a flue 6, which is connected to at least one of the first cavity 11 and the second cavity 21, and a cooling cavity 51 is connected to the flue 6.

[0058] The exhaust duct 6 is connected to at least one of the first cavity 11 and the second cavity 21. During the cooking process, whether steaming or baking is performed in the first cavity 11 or the fumes generated by combustion in the second cavity 21, they can be discharged from the cooking device 100 through the exhaust duct 6. If the fumes cannot be discharged in time, they will accumulate in the cavity, which will not only affect the cooking environment, but may also cause the food to be contaminated with odors and reduce the cooking quality. The connection of the exhaust duct 6 can ensure that these fumes have a smooth discharge channel, maintain the fresh air in the cooking device 100, ensure that the food is cooked in a relatively pure environment, and improve the cooking effect.

[0059] When the air inside the cooking device 100 changes volume due to heating, combustion, or other operations, the air pressure inside the cavity fluctuates. The connection between the exhaust duct 6 and the cavity can regulate the air pressure. When the burner 22 burns, the temperature of the second cavity 21 rises and the air expands. If the exhaust duct 6 does not promptly exhaust some of the air, the air pressure inside the second cavity 21 will rise, which may affect the normal combustion of the burner 22 or even cause pressure damage to the structure of the cooking device 100. The exhaust duct 6 can exhaust excess air according to the changes in air pressure inside the cavity, maintain the relative stability of the air pressure inside the cavity, ensure the normal operation of the cooking device 100, and extend its service life.

[0060] The cooling chamber 51 is connected to the exhaust duct 6, allowing the heat generated by the fan 3 within the cooling chamber 51 to be carried out of the cooking device 100 along with the airflow from the exhaust duct 6. Normally, the heat generated by the fan 3 is dissipated through the airflow within the cooling chamber 51. However, when the cooling chamber 51 is connected to the exhaust duct 6, the airflow within the exhaust duct 6 creates a suction force on the cooling chamber 51, accelerating the airflow and allowing the heat generated by the fan 3 to be expelled more quickly and efficiently. This further reduces the temperature of the fan 3, ensuring it operates within a more suitable temperature range, thus extending its lifespan, maintaining stable performance, and ensuring the normal operation of the cooking device 100. Because the cooling chamber 51 is connected to the exhaust duct 6, heat dissipation is integrated, eliminating the need for a separate, complex heat dissipation system for the fan 3. This reduces the need for additional ductwork, pipes, and other components, lowering production costs and making the product more competitive in the market. It also facilitates later maintenance and upkeep for users.

[0061] The cooking apparatus 100 according to some embodiments of this application further includes a housing 7, and the housing 7 has an inner cavity 71 formed therein for accommodating the box body 1, the cover plate 24, the fan housing 4 and the protective shell 5.

[0062] By housing components such as the housing 1, cover 24, fan housing 4, and protective shell 5 within the inner cavity 71 of the casing 7, a comprehensive physical protective barrier is provided. During daily use, the cooking appliance 100 may encounter various unexpected situations, such as being struck by external forces or squeezed by other objects. The casing 7 effectively blocks these external impacts, preventing direct damage to internal components. For example, when the cooking appliance 100 is accidentally knocked over on a kitchen countertop, the casing 7 can withstand most of the impact, protecting internal components such as the housing 1 and fan 3 from damage, ensuring the cooking appliance 100 can continue to operate normally. The casing 7 also prevents dust, debris, and other foreign objects from entering the space containing the internal components; its presence isolates foreign objects, maintains the cleanliness of the internal components, and extends their service life.

[0063] According to some embodiments of the present application, the cooking apparatus 100 has heat dissipation holes 72 formed on the housing 7, and the protective shell 5 is open toward the heat dissipation holes 72.

[0064] The heat dissipation holes 72 on the housing 7 provide an outlet channel for the heat dissipation inside the cooking device 100. During the operation of the cooking device 100, various components such as the fan 3 and the burner 22 will generate heat. This heat needs to be dissipated in time to maintain the normal operating temperature of the components. The protective shell 5 is open to the heat dissipation holes 72, so that the cooling cavity 51 inside the protective shell 5 and the external environment of the housing 7 are effectively connected through the heat dissipation holes 72. The heat generated by the fan 3 when it is working first accumulates in the cooling cavity 51. Due to the open design of the protective shell 5, the heat can be dissipated to the outside of the cooking device 100 through this channel and with the help of the heat dissipation holes 72, which can improve the service life of the fan 3.

[0065] In some embodiments of this application, at least one heat dissipation hole 72 is arranged at intervals on the housing 7.

[0066] The cooking apparatus 100 according to some embodiments of this application further includes a microwave unit disposed in the housing 1.

[0067] Microwave cooking utilizes the interaction between microwaves and food molecules to generate heat, rapidly heating the interior of food. This complements traditional methods like steaming and baking, which gradually heat food from the outside. When the cooking device 100 is equipped with both a microwave unit and a traditional burner 22, when baking larger, harder foods, the microwave unit can be used to preheat the food for a short time, raising its internal temperature and breaking down the internal temperature gradient, making it easier for heat to transfer from the outside to the inside. Then, the device can switch to the baking mode of the burner 22. During baking, the food already has a certain amount of internal heat, and the heat generated by the external burner 22 can work more efficiently with the internal heat, resulting in more even and rapid heating of the food, further improving cooking efficiency.

[0068] In some embodiments of this application, the cooking device 100 is also equipped with a gas stove 8, which is connected to the gas pipeline 23. Users no longer need to prepare a separate gas stove 8. In the limited kitchen space, the cooking device 100 can meet a variety of cooking needs, greatly improving the utilization rate of kitchen space.

[0069] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0070] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0071] In the description of this application, "multiple" means two or more.

[0072] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0073] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking apparatus, characterized in that, include: Box (1), wherein a first cavity (11) is formed inside the box (1); Combustion section (2), the combustion section (2) is disposed on the outside of the box (1), and a second cavity (21) is formed inside the combustion section (2), the second cavity (21) is connected to the first cavity (11); A burner (22) is disposed in the second cavity (21), the burner (22) is connected to a gas pipeline (23) and is adapted to burn in the second cavity (21); A fan (3) is disposed in the combustion section (2) and adapted to provide airflow into the second cavity (21).

2. The cooking apparatus according to claim 1, characterized in that, The combustion section (2) includes: A cover plate (24) is disposed on the side wall of the housing (1) and defines the second cavity (21) between the housing (1). The side wall of the housing (1) is formed with an air outlet (241) that connects the first cavity (11) and the second cavity (21). An air supply hole (242) is formed on the cover plate (24) that is directly opposite to the fan (3).

3. The cooking apparatus according to claim 2, characterized in that, Also includes: The fan housing (4) is connected to the cover plate (24) and defines a third cavity (41) that communicates with the first cavity (11) between the cover plate (24) and the second cavity (21). The third cavity (41) communicates with the second cavity (21) through the air supply hole (242). The impeller of the fan (3) is rotatably housed in the third cavity (41).

4. The cooking apparatus according to claim 3, characterized in that, An air inlet (42) is formed on the housing (1) to connect the first cavity (11) and the third cavity (41), and the air inlet (42) is disposed on at least one side of the air outlet (241) in the width direction.

5. The cooking apparatus according to claim 4, characterized in that, An air outlet area (25) is formed on the side wall of the housing (1), and a plurality of air outlets (241) are provided in the air outlet area (25). The air outlet area (25) is located above the burner (22).

6. The cooking apparatus according to claim 5, characterized in that, A combustion zone with a height of h is formed above the burner (22), and the height of the combustion zone is not less than 1 / 3 of the flame length; the distance between the lower edge of the air outlet area (25) and the burner (22) is L1, and satisfies: L1≥h.

7. The cooking apparatus according to claim 3, characterized in that, Also includes: A protective shell (5) is disposed on the outside of the fan housing (4) and defines a cooling cavity (51) for accommodating the fan (3).

8. The cooking apparatus according to claim 7, characterized in that, Also includes: The exhaust duct (6) is connected to the first cavity (11) and / or the second cavity (21), and the cooling cavity (51) is connected to the exhaust duct (6).

9. The cooking apparatus according to claim 8, characterized in that, Also includes: The housing (7) has an inner cavity (71) formed inside for accommodating the box (1), the cover plate (24), the fan housing (4) and the protective shell (5).

10. The cooking apparatus according to claim 9, characterized in that, The housing (7) has heat dissipation holes (72), and the protective shell (5) is open to the heat dissipation holes (72).

11. The cooking apparatus according to any one of claims 1-10, characterized in that, Also includes: A microwave unit is disposed in the housing (1).

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