Cooking device

Abstract

The cooking device comprises a box body, a combustion part, a combustor and a draught fan, a first cavity is formed in the box body, the combustion part is arranged on the outer side of the box body, a second cavity is formed in the combustion part and communicates with the first cavity, the combustor is arranged in the second cavity, and the draught fan is arranged in the second cavity. The combustor is connected with the gas pipeline and suitable for combustion in the second cavity, the fan is arranged on the combustion part and suitable for providing airflow into the second cavity, the heat cycle efficiency in the steaming and baking box can be improved, and the cooking time can be shortened.

Description

Technical Field

[0001] The present application relates to the field of kitchen utensils, and in particular to a cooking device. Background Art

[0002] In the prior art, steam ovens, due to inadequate heat circulation mechanisms in their design and use, cannot distribute heat quickly and evenly within the oven cavity, preventing food from achieving the desired cooking effect within the ideal timeframe. This inefficient heat circulation severely impacts the efficiency of the steam oven, causing inconvenience to users, extending the cooking cycle, and increasing user waiting time. Therefore, improving the heat circulation efficiency of steam ovens has become a technical issue addressed by this application. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a cooking device that can improve the heat circulation efficiency in a steam oven and shorten the cooking time.

[0004] According to an embodiment of the present application, the cooking device includes: a box body, in which a first cavity is formed; a combustion part, which is arranged on the outside of the box body, and a second cavity is formed inside the combustion part, and the second cavity is connected to the first cavity; a burner, which is arranged in the second cavity, the burner is connected to the gas pipeline and is suitable for burning in the second cavity; and a fan, which is arranged in the combustion part and is suitable for providing airflow into the second cavity.

[0005] According to the cooking device of the embodiment of the present application, the burner is connected to the gas pipeline. When the gas burns in the burner, heat is released, and the heat is accumulated in the second cavity, providing an energy source for heat transfer. Furthermore, a fan is used to provide airflow to the second cavity. The second cavity is connected to the first cavity, and the heated airflow in the second cavity is transferred to the first cavity. The heat in the second cavity can be distributed throughout the first cavity. Moreover, when there is air flow in the first cavity, the hot air will continuously mix with the cold air, further improving the efficiency of heat utilization and avoiding local overheating or overcooling, thereby achieving an improvement in heat cycle efficiency. Due to the improved heat cycle efficiency, the ingredients in the first cavity can be heated more quickly and evenly, allowing the cooking process to be completed more quickly, thereby shortening the cooking time.

[0006] According to some embodiments of the cooking device of the present application, the combustion part includes: a cover plate, which is arranged on the side wall of the box body and defines the second cavity between the cover plate and the box body, the side wall of the box body is formed with an air outlet connecting the first cavity and the second cavity, and the cover plate is formed with an air supply hole facing the fan.

[0007] According to some embodiments of the present application, the cooking device further includes: a fan housing, which is connected to the cover plate and defines a third cavity connected to the first cavity between the fan housing and the cover plate, and the third cavity is connected to the second cavity through the air supply hole, and the fan wheel is rotatably accommodated in the third cavity.

[0008] According to some embodiments of the cooking device of the present application, an air inlet connecting the first cavity and the third cavity is formed on the box body, and the air inlet is arranged on at least one side of the air outlet in the width direction.

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

[0010] According to some embodiments of the cooking device of the present 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 area and the burner is L1, and satisfies: L1 ≥ h.

[0011] According to some embodiments of the present application, the cooking device further includes: a protective shell, which is arranged on the outside of the fan housing and defines a cooling cavity for accommodating the fan.

[0012] According to some embodiments of the present application, the cooking device further includes: a smoke exhaust duct, which is connected to the first cavity and / or the second cavity, and the cooling cavity is connected to the smoke exhaust duct.

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

[0014] According to the cooking device of some embodiments of the present application, a heat dissipation hole is formed on the housing, and the protective shell is open toward the heat dissipation hole.

[0015] According to some embodiments of the present application, the cooking device further includes: a microwave unit, which is arranged in the box.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 is a schematic structural diagram of a cooking device according to an embodiment of the present application;

[0019] Figure 2 yes Figure 1 AA cross-sectional structural diagram in;

[0020] Figure 3 yes Figure 1 BB cross-sectional structure diagram in;

[0021] Figure 4 1 is a schematic diagram of the air flow structure of the AA section in the cooking device according to an embodiment of the present application;

[0022] Figure 5 2. It is a schematic diagram of the air flow structure along the CC section in the cooking device according to an embodiment of the present application;

[0023] Figure 6 It is a structural diagram of a cooking device in accordance with an embodiment of the present application in combination with a gas stove.

[0024] Reference numerals:

[0025] 100. Cooking device;

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

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

[0028] 3. Fan;

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

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

[0031] 6. Smoke exhaust duct;

[0032] 7. Casing; 71. Inner cavity; 72. Heat dissipation holes;

[0033] 8. Gas stove. DETAILED DESCRIPTION

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

[0035] Reference below Figure 1-Figure 3A cooking device 100 according to an embodiment of the present application is described.

[0036] According to an embodiment of the present application, the cooking device 100 includes a box body 1, a combustion part 2, a burner 22 and a fan 3. A first cavity 11 is formed in the box body 1, the combustion part 2 is arranged on the outside of the box body 1, and a second cavity 21 is formed inside the combustion part 2. The second cavity 21 is connected to the first cavity 11, the burner 22 is arranged in the second cavity 21, the burner 22 is connected to the gas pipeline 23 and is suitable for burning in the second cavity 21, and the fan 3 is arranged in the combustion part 2 and is suitable for providing airflow to the second cavity 21.

[0037] The burner 22 is arranged in the second cavity 21 of the combustion part 2 and is connected to the gas pipeline 23. When the gas burns in the burner 22, a large amount of heat energy is released. The heat energy can be accumulated in the second cavity 21, providing an energy source for heat transfer.

[0038] Furthermore, the fan 3 is arranged in the combustion part 2 to provide airflow into the second cavity 21. The oxygen in the airflow can promote sufficient combustion and make the heat generated by the combustion part 2 evenly distributed in the second cavity 21, avoiding the heat generated by the burner 22 burning the gas to form a local high-temperature zone in the second cavity 21 without the disturbance of the airflow, while other areas in the second cavity 21 have insufficient heat. The airflow generated by the fan 3 can break this uneven heat state and make the heat diffuse rapidly in the second cavity 21; at the same time, the airflow can flow in the direction of communication with the first cavity 11 with the heat. Since the second cavity 21 is connected to the first cavity 11, the first cavity 11 can be understood as a cooking cavity, and the airflow becomes a carrier of heat transfer, transporting the heat generated by combustion from the second cavity 21 of the combustion part 2 to the first cavity 11.

[0039] During normal operation of the steam oven, heat generated by the burner 22 is continuously transported into 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 air flow in the first cavity 11, the hot air in the first cavity 11 is continuously mixed with the cold air, further improving the efficiency of heat utilization, avoiding local overheating or overcooling in the first cavity 11, and thus improving the efficiency of the heat cycle.

[0040] Due to the improved heat circulation efficiency, the food inside the first cavity 11 can be heated more quickly and evenly, avoiding the situation where the heat takes a long time to cover all parts of the food, and avoiding the situation where uneven heat distribution may cause some parts of the food to be cooked while other parts have not yet reached the ideal cooking state. The efficient heat circulation can ensure that all parts of the food can obtain sufficient heat in a timely manner, so that the cooking process can be completed faster, thereby shortening the cooking time.

[0041] According to some embodiments of the cooking device 100 of the present application, the combustion part 2 includes a cover plate 24, which is arranged on the side wall of the box body 1 and defines a second cavity 21 between the cover plate 24 and the box body 1. The side wall of the box body 1 is formed with an air outlet 241 that connects the first cavity 11 and the second cavity 21, and the cover plate 24 is formed with an air supply hole 242 that is opposite to the fan 3.

[0042] The air outlet 241 formed on the side wall of the box body 1 connects the first cavity 11 and the second cavity 21, so that the air in the first cavity 11 can enter the second cavity 21. It can be understood that when the cooking device 100 is started, the burner 22 in the second cavity 21 ignites the gas, and the heat in the second cavity 21 is high. In order to avoid the high-temperature air from blowing directly onto the food in the first cavity 11 and causing it to burn, the air outlet 241 is set to blow from the first cavity 11 to the second cavity 21. When the cooking device 100 is started, the cold air in the first cavity 11 can be sucked out of the first cavity 11 and mixed with the hot air in the second cavity 21 to avoid local overheating and prepare for the subsequent redistribution of heat.

[0043] When the fan 3 is working, a directional airflow will be generated. The position of the air supply hole 242 is opposite to the fan 3, which can ensure that the air in the first cavity 11 can be sucked out by the fan 3 and enter the second cavity 21 through the air supply hole 242, avoiding the scattering and energy loss of the air flow, so that the energy of the air flow is effectively utilized. The airflow sucked out by the fan 3 enters the second cavity 21 through the air supply hole 242. Since the air outlet 241 is the connecting port 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, thereby improving the flow efficiency of the air between the first cavity 11 and the second cavity 21.

[0044] According to some embodiments of the present application, the cooking device 100 further includes a fan housing 4, which is connected to the cover plate 24 and defines a third cavity 41 connected to the first cavity 11 between the fan housing 4 and the cover plate 24. The third cavity 41 is connected to the second cavity 21 through the air supply hole 242, and the wind wheel of the fan 3 is rotatably accommodated in the third cavity 41.

[0045] Furthermore, when the cooking device 100 is started, the cold air in the first cavity 11 is sucked out of the first cavity 11 and mixed with the hot air in the second cavity 21. The hot air in the second cavity 21 is connected to the third cavity 41 through the air supply hole 242, and then enters the second cavity 21 through the third cavity 41. The gas passes through the second cavity 21 and the third cavity 41 to achieve the mixing of hot air and cold air, avoiding the direct heating of the air directly entering the first cavity 11, which may cause the occurrence of burnt air. At the same time, it accelerates the heat circulation between the first cavity 11, the second cavity 21 and the third cavity 41, promotes the thermal balance in the entire cooking device 100, and can more quickly distribute the heat generated by the burner 22 evenly in the first cavity 11, thereby improving the heat utilization efficiency and reducing the temperature unevenness during the cooking process, which is beneficial to improving cooking quality and shortening cooking time.

[0046] According to some embodiments of the cooking device 100 of the present application, an air inlet 42 is formed on the cabinet 1 to connect the first cavity 11 with the third cavity 41 . The air inlet 42 is arranged 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 with the third cavity 41. It 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 interconnecting structures between the cavities, further improves the air circulation path within the cooking device 100. The fan 3 draws cool air from the first cavity 11 and mixes it with the heated air in the second cavity 21. The mixed air then enters the third cavity 41 for further mixing. The air then enters the first cavity 11 through the air inlet 42 and the third cavity 41, forming a circulation loop. This allows air to flow orderly between the cavities, enhancing the integrity and continuity of the air circulation.

[0048] Furthermore, air inlets 42 are positioned on at least one side of the air outlet 241 in the width direction, allowing air to enter and exit each cavity from different locations. This creates a three-dimensional air circulation path, allowing air to more comprehensively cover different areas of each cavity, promoting the integrity and balance of air circulation throughout the device. Whether air is near the edges or the center of the cooking device 100, it can participate in the circulation process more effectively, avoiding the problem of poor air circulation or insufficient heat transfer in certain areas.

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

[0050] Multiple air outlets 241 are arranged in the air outlet area 25, so that the number of air circulation channels from the first cavity 11 to the second cavity 21 is increased. When other conditions remain unchanged, more air flows from the first cavity 11 to the second cavity 21, increasing the overall air intake volume. When the 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 part of the air flow. Compared with a single air outlet 241 bearing the pressure of the entire air flow, multiple air outlets 241 can allow air to pass more smoothly.

[0051] The air outlet area 25 is located above the burner 22. It can be understood that the burner 22 will generate a large amount of heat when working, and the hot air has the characteristic of naturally rising. The air outlet area 25 is located above the burner 22. The air in the first cavity 11 will be more likely to flow to the second cavity 21 under the influence of the rising air flow of hot air generated near the burner 22, providing additional power for the air to enter the second cavity 21 from the first cavity 11, prompting more air to enter the second cavity 21 through multiple air outlets 241. The thermal power drive mechanism, combined with the multiple air outlets 241, greatly increases the air intake. As the air intake from the first cavity 11 to the second cavity 21 increases, the heat cycle efficiency increases.

[0052] According to some embodiments of the cooking device 100 of the present 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 can be understood 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, which provides the necessary spatial height for the normal combustion of the flame. The flame needs to develop in a relatively stable and suitable space during the combustion process. The setting of the combustion zone ensures that the flame has sufficient vertical space to complete the combustion reaction, avoiding insufficient height of the combustion zone, which may cause the flame to be restricted by the upper structure, resulting in the inability to fully proceed with the combustion process, 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, and there is a tendency to suck air from the cavity. Since L1 is not less than h, the sucked air has a sufficient distance to change its flow path or speed before reaching the flame; this avoids L1 being too small, causing the sucked air to directly impact the flame root. The flame root is the core area of ​​flame combustion and requires a stable oxygen supply and combustion environment. It avoids air directly impacting the flame root and destroying the combustion balance of the flame root, causing the temperature of the flame root to drop sharply, resulting in poor combustion effect and low combustion efficiency. Poor combustion effect may cause uneven heating of food because the flame cannot stably provide heat to the cooking area; reduced combustion efficiency will increase energy consumption and extend cooking time.

[0055] According to some embodiments of the present application, the cooking device 100 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 on the outside of the fan housing 4, and can provide physical protection for the fan 3 to prevent the fan 3 and its related components from being damaged, ensuring that the fan 3 can operate normally and stably, thereby ensuring the normal operation of the entire cooking device 100. The protective shell 5 defines a cooling cavity 51 for accommodating the fan 3. During the operation of the fan 3, a certain amount of heat will be generated due to the rotation of the wind wheel and the operation of the motor. If the heat cannot be dissipated in time, it will accumulate inside the fan 3, causing the temperature of the fan 3 to rise. Excessive temperature will have an adverse effect on the performance of the fan 3, which may reduce the efficiency of the motor and shorten the service life of the motor. The cooling cavity 51 allows air to flow inside to form a A relatively independent heat dissipation space. When the fan 3 is working, its own rotation will drive the air flow 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 caused by the operation of the burner 22, the air inside and outside the cooling chamber 51 may also be exchanged. Through this air flow, 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 thereby improving the reliability and durability of the entire cooking device 100.

[0057] According to some embodiments of the present application, the cooking device 100 further includes: a smoke exhaust duct 6 , which is connected to at least one of the first cavity 11 and the second cavity 21 , and the cooling cavity 51 is connected to the smoke exhaust duct 6 .

[0058] The smoke 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, baking or other operations are performed in the first cavity 11, or the smoke generated by combustion in the second cavity 21, it can be discharged from the cooking device 100 through the smoke exhaust duct 6. If the smoke cannot be discharged in time, it will accumulate in the cavity, which will not only affect the cooking environment, but also may cause the food to be contaminated with odor and reduce the cooking quality. By connecting the smoke exhaust duct 6, it can be ensured that these smoke have a smooth exhaust channel, maintain the air in the cooking device 100 fresh, ensure that the food is cooked in a relatively pure environment, and improve the cooking effect.

[0059] When the volume of the air in the cooking device 100 changes due to operations such as heating and combustion, the air pressure in the cavity will fluctuate. 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 increases and the air expands. At this time, if the exhaust duct 6 does not discharge part of the air in time, the air pressure inside the second cavity 21 will increase, which may affect the normal combustion of the burner 22 and even cause pressure damage to the structure of the cooking device 100. The exhaust duct 6 can discharge excess air according to the changes in the air pressure in the cavity, maintain the relative stability of the air pressure in 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 flue duct 6, so that the heat generated by the fan 3 in the cooling chamber 51 can be carried out of the cooking device 100 along with the airflow discharged from the flue duct 6. The heat generated by the fan 3 during operation is originally dissipated through the flow of air in the cooling chamber 51. However, when the cooling chamber 51 is connected to the flue duct 6, the airflow in the flue duct 6 creates a suction effect on the cooling chamber 51, which accelerates the flow of air in the cooling chamber 51, causing the heat generated by the fan 3 to be discharged more quickly and efficiently, further reducing the temperature of the fan 3 and ensuring that the fan 3 operates within a more suitable operating temperature range, thereby extending the service life of the fan 3, maintaining the stability of the fan 3 performance, and ensuring the normal operation of the cooking device 100. Since the cooling chamber 51 is connected to the flue duct 6, integrated heat dissipation is achieved, eliminating the need for a separate and complex heat dissipation system for the fan 3, reducing the need for additional air ducts, pipes, and other components, reducing production costs, making the product more competitive in the market, and also facilitating subsequent maintenance and upkeep for users.

[0061] According to some embodiments of the present application, the cooking device 100 further includes a casing 7 , in which an inner cavity 71 is formed for accommodating the box body 1 , the cover plate 24 , the fan housing 4 and the protective shell 5 .

[0062] By accommodating components such as the box body 1, the cover plate 24, the fan housing 4 and the protective shell 5 in the inner cavity 71 of the casing 7, an overall physical protective barrier is provided. During daily use, the cooking device 100 may face various unexpected situations, such as being hit by external forces, being squeezed by other objects, etc. The casing 7 can effectively block these external impact forces and prevent the internal components from being directly damaged. For example, when the cooking device 100 is accidentally knocked over on the kitchen countertop, the casing 7 can withstand most of the impact force, protecting the internal box body 1, fan 3 and other components from damage, ensuring that the cooking device 100 can continue to operate normally. The casing 7 can also prevent foreign matter such as dust and debris from entering the space where the internal components are located. The presence of the casing 7 can isolate foreign matter from the outside, maintain the cleanliness of the internal components, and extend the service life.

[0063] According to the cooking device 100 in some embodiments of the present application, a heat dissipation hole 72 is formed on the housing 7, and the protective housing 5 is open toward the heat dissipation hole 72.

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

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

[0066] According to some embodiments of the present application, the cooking device 100 further includes a microwave unit, which is disposed in the cabinet 1 .

[0067] Microwave cooking uses the interaction between microwaves and food molecules to generate heat, which can quickly heat the inside of food, complementing traditional methods such as steaming and baking that gradually heat the food from the outside. When the cooking device 100 has both a microwave unit and a traditional burner 22 and other heating components, when baking some larger and harder foods, the microwave unit can be used to preheat the food for a short time to increase the internal temperature of the food, break the temperature gradient inside the food, and make it easier for heat to transfer from the outside to the inside, and then switch to the baking mode of the burner 22. During the baking process, the food already has a certain basic heat inside, and the heat generated by the external burner 22 can more efficiently cooperate with the internal heat to make the food heated more evenly and quickly, further improving cooking efficiency.

[0068] In some embodiments of the present application, the cooking device 100 is also provided with a gas stove 8, which is connected to the gas pipeline 23. The user no longer needs to prepare a gas stove 8 separately. In a limited kitchen space, the cooking device 100 can meet a variety of cooking needs, thereby greatly improving the utilization rate of the kitchen space.

[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present 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, “plurality” means two or more.

[0072] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0073] In the description of this application, a first feature “on”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0074] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0075] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cooking device, characterized in that: include: A box body (1), wherein a first cavity (11) is formed in the box body (1); A combustion portion (2), the combustion portion (2) being arranged outside the box (1), a second cavity (21) being formed inside the combustion portion (2), the second cavity (21) being in communication with the first cavity (11); a burner (22), the burner (22) being disposed in the second cavity (21), the burner (22) being connected to a gas pipeline (23) and being suitable for burning in the second cavity (21); A fan (3), the fan (3) is arranged in the combustion part (2) and is suitable for providing air flow into the second cavity (21).

2. The cooking device according to claim 1, wherein: The combustion unit (2) comprises: A cover plate (24) is provided on the side wall of the box body (1) and defines the second cavity (21) between the cover plate and the box body (1); an air outlet (241) for connecting the first cavity (11) and the second cavity (21) is formed on the side wall of the box body (1); and an air supply hole (242) facing the fan (3) is formed on the cover plate (24).

3. The cooking device according to claim 2, wherein: Also includes: A fan housing (4), wherein the fan housing (4) is connected to the cover plate (24) and defines a third cavity (41) communicating with the first cavity (11) between the fan housing (4) and the cover plate (24); the third cavity (41) is communicated with the second cavity (21) via the air supply hole (242); and the wind wheel of the fan (3) is rotatably accommodated in the third cavity (41).

4. The cooking device according to claim 3, wherein: An air inlet (42) for connecting the first cavity (11) and the third cavity (41) is formed on the box body (1), and the air inlet (42) is arranged on at least one side of the air outlet (241) in the width direction.

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

6. The cooking device 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 device according to claim 3, wherein: Also includes: A protective shell (5) is arranged on the outside of the fan housing (4) and defines a cooling cavity (51) for accommodating the fan (3).

8. The cooking device according to claim 7, wherein: Also includes: A smoke exhaust duct (6), the smoke exhaust duct (6) is in communication with the first cavity (11) and / or the second cavity (21), and the cooling cavity (51) is in communication with the smoke exhaust duct (6).

9. The cooking device according to claim 8, wherein Also includes: A casing (7) is formed with an inner cavity (71) for accommodating the box body (1), the cover plate (24), the fan housing (4) and the protective shell (5).

10. The cooking device according to claim 9, characterized in that A heat dissipation hole (72) is formed on the housing (7), and the protective housing (5) is openly arranged toward the heat dissipation hole (72).

11. The cooking device according to any one of claims 1 to 10, characterized in that: Also includes: A microwave unit is provided in the box (1).

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