Cooking appliance

Abstract

The utility model provides a kind of cooking utensil, comprising: shell assembly, including cooking cavity and installation cavity, one side of shell assembly is equipped with opening, opening is communicated with cooking cavity;Hot air assembly, is located in cooking cavity, for making hot air flow in cooking cavity;Air inlet, is located on shell assembly, and is communicated with installation cavity;Heat dissipation port, is located in the side of shell assembly with opening;Radiating fan, rotatably be located in installation cavity, for by air inlet the air outside shell assembly is inhaled into installation cavity;Cooling air duct, is located in installation cavity, the inlet of cooling air duct is communicated with air inlet and the inside of installation cavity, and the outlet of cooling air duct is communicated with heat dissipation port;Cooling fan, rotatably be located in cooling air duct, for by the inlet of cooling air duct from installation cavity and air inlet suction, and by the outlet of cooling air duct exhaust air.This cooking utensil can form double heat dissipation, reduce the airflow temperature of cooking utensil last discharge.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more specifically, to a cooking appliance. Background Technology

[0002] Air fryers, a common cooking appliance in modern kitchens, are increasingly favored by families due to their convenience and health benefits. However, current air fryers occupy countertop space, reducing usable kitchen area and potentially affecting the overall tidiness and aesthetics of the space. With the increasing demand for smaller kitchens and improved storage efficiency, the shortcomings of traditional countertop air fryers in terms of space utilization and storage convenience are becoming increasingly apparent.

[0003] Therefore, how to develop an air fryer that maximizes space utilization and enhances the cleanliness and aesthetics of the kitchen has become an urgent problem to be solved. Utility Model Content

[0004] The present invention aims to at least solve the technical problems of air fryers occupying a large countertop space in the prior art or related technologies, resulting in low space utilization in the kitchen and hindering the improvement of the kitchen's cleanliness and aesthetics.

[0005] The first aspect of this utility model is to provide a cooking utensil.

[0006] The second aspect of this utility model is to provide a cooking utensil.

[0007] To achieve the above objectives, an embodiment of the first aspect of this utility model provides a cooking appliance, comprising: a housing assembly including a cooking cavity and a mounting cavity, wherein an opening is provided on one side of the housing assembly and the opening communicates with the cooking cavity; a hot air assembly disposed within the cooking cavity for generating a circulating hot airflow within the cooking cavity; an air inlet disposed on the housing assembly and communicating with the mounting cavity; a heat dissipation vent disposed on the side of the housing assembly with the opening; a cooling fan rotatably disposed within the mounting cavity for drawing air from outside the housing assembly into the mounting cavity through the air inlet; a cooling duct disposed within the mounting cavity, wherein the inlet of the cooling duct communicates with the air inlet and the interior of the mounting cavity, and the outlet of the cooling duct communicates with the heat dissipation vent; and a cooling fan rotatably disposed within the cooling duct for drawing air from the mounting cavity and the air inlet through the inlet of the cooling duct and exhausting air through the outlet of the cooling duct.

[0008] According to the embodiments of this utility model, the cooking appliance, under the action of the heat dissipation fan and the cooling fan, the cold air entering from the air inlet first passes through the mounting cavity. The cold air cools the components in the mounting cavity, thereby removing some of the heat in the mounting cavity. This is the first heat dissipation. The airflow heated in the mounting cavity enters the cooling air duct. At the same time, under the negative pressure generated by the rotation of the cooling fan, some air outside the housing assembly enters the cooling air duct directly or indirectly through the air inlet. For example, an air inlet channel can be set between the cooling air duct and the air inlet to ensure that the cold air outside can directly enter the cooling air duct. In this way, in the cooling air duct, the heated air drawn in from the mounting cavity can be cooled a second time by the cold air outside. The airflow after the second heat dissipation is finally discharged to the external environment where the cooking appliance is located through the outlet of the cooling air duct and the heat dissipation port.

[0009] The cooking appliance in this embodiment, guided by a cooling fan, draws in external airflow to achieve a first cooling effect on the mounting cavity. The cooling duct and cooling fan then provide a second cooling effect on the airflow within the mounting cavity, creating a dual cooling structure. This significantly reduces the temperature of the final exhaust airflow from the cooking appliance, effectively improving the overall heat dissipation efficiency and long-term operational reliability. Simultaneously, the design of the heat dissipation vents on the open side facilitates direct exhaust of hot air from the front of the cooking appliance, reducing heat accumulation around the unit and making it easier to achieve recessed installation. This helps maintain a clean and aesthetically pleasing kitchen space and improves space utilization.

[0010] Optionally, in any of the above technical solutions, the cooking appliance further includes: a connecting port for connecting the cooking cavity with the mounting cavity or connecting the cooking cavity with the cooling air duct.

[0011] In these technical solutions, the connecting port connects the mounting cavity and the cooking cavity. Excess hot airflow due to positive pressure in the cooking cavity can first enter the mounting cavity through the connecting port. Then, it is cooled by cold air introduced by the cooling fan in the mounting cavity before entering the cooling duct. It is then further cooled in the cooling duct and finally discharged from the heat dissipation vent. Alternatively, the connecting port connects the inlet of the cooling duct and the cooking cavity. Excess hot airflow due to positive pressure in the cooking cavity can enter the cooling duct and be discharged through the cooling vent. By cooling the excess hot airflow discharged from the cooking cavity, the temperature of the exhaust gas from the cooking appliance can be greatly reduced, avoiding the adverse effects of high-temperature exhaust gas on the embedded installation environment, and providing the most basic guarantee for setting the cooking appliance as an embedded unit.

[0012] In any of the above technical solutions, optionally, the air inlet is located on the side of the housing assembly where the opening is provided. This places the air inlet on the front of the housing assembly, thereby preventing the air inlet from being blocked when the cooking appliance is installed in a recessed manner, and ensuring smooth air intake.

[0013] Optionally, in any of the above technical solutions, the cooking appliance further includes: a heat dissipation duct, disposed within the mounting cavity, with the inlet of the heat dissipation duct connected to the mounting cavity and the outlet of the heat dissipation duct connected to the inlet of the cooling duct. A cooling fan is rotatably mounted within the heat dissipation duct.

[0014] In these technical solutions, the cooking appliance also includes a heat dissipation duct. The heat dissipation duct is located within the mounting cavity, while the electronic control board, the drive device for rotating the hot air fan of the hot air assembly, etc., are located outside the heat dissipation duct and inside the mounting cavity. The cooling fan is rotatably mounted within the heat dissipation duct. Through the rotation of the cooling fan, external cold air can first enter the mounting cavity and then enter the heat dissipation duct through its inlet. This coordination between the heat dissipation duct and the cooling fan guides the airflow entering the mounting cavity from the inlet, ensuring that the airflow passes over components such as the electronic control board and motor that require cooling. This allows the airflow to cool these components before entering the cooling duct, preventing external cold air from being directly exhausted through the cooling duct and resulting in poor cooling of the components within the mounting cavity.

[0015] When a heat dissipation duct is provided, the cooking cavity can be directly connected to the heat dissipation duct or cooling duct through a connecting port, thereby connecting the cooking cavity with the inlet of the mounting cavity or cooling duct. This means that heat from the cooking cavity can be directly discharged into the heat dissipation duct or cooling duct without first entering the mounting cavity and then from there into the heat dissipation duct.

[0016] Optionally, in any of the above technical solutions, the cooking appliance further includes: a mixing element disposed in the mounting cavity, the mixing element having a mixing chamber, and a first inlet, a second inlet, and a first outlet communicating with the mixing chamber, the first inlet communicating with the outlet of the heat dissipation duct, the first outlet communicating with the inlet of the cooling duct (so that the outlet of the heat dissipation duct is connected to the inlet of the cooling duct through the mixing element), and the second inlet communicating with the cooking cavity.

[0017] In these technical solutions, the cooking appliance also includes a mixing element, which is disposed within the mounting cavity. The mixing element has a mixing chamber inside and is equipped with a first inlet, a second inlet, and a first outlet communicating with the mixing chamber. The first outlet communicates with the inlet of the cooling duct, the first inlet communicates with the outlet of the heat dissipation duct, and the second inlet communicates with the cooking cavity (for example, the second inlet can communicate with the cooking cavity through a connecting port, thus enabling communication between the cooking cavity and the mounting cavity via the heat dissipation duct and the mixing element). When the cooking appliance is in operation, the airflow that exchanges heat with the mounting cavity, performing the first heat dissipation on the mounting cavity, enters the mixing chamber through the first inlet under the action of the cooling fan. Simultaneously, excess hot airflow in the cooking cavity due to positive pressure is introduced into the mixing chamber through the connecting port or similar means from the second inlet. The two airflows (the airflow that dissipates heat from the mounting cavity and the airflow discharged from the cooking cavity) fully impact, mix, and exchange heat in the mixing chamber, achieving efficient active cooling. The mixed airflow is then transported to the cooling duct through the first outlet, where it is cooled a second time before being discharged through the heat dissipation port. By directly introducing the excess hot airflow that needs to be discharged from the cooking cavity into the mixing element and pre-mixing and cooling it with the primary cooling air in the mixing element, the heat dissipation efficiency of the excess hot air discharged from the cooking cavity is significantly improved, effectively reducing the temperature of the gas finally discharged outside the machine and avoiding the adverse effects of high-temperature exhaust gas on the embedded installation environment.

[0018] In any of the above technical solutions, optionally, the inlet of the cooling air duct includes: a first air inlet, which is disposed on one side of the cooling fan along the axial direction and communicates with the air inlet; and / or a second air inlet, which is disposed on the other side of the cooling fan along the axial direction and communicates with the air inlet; and a third air inlet, which communicates with the mounting cavity.

[0019] In these technical solutions, the cooling duct inlet includes a third air inlet, through which the airflow cooling the mounting cavity can enter the cooling duct (when a heat dissipation duct is provided, the third air inlet is connected to the mounting cavity through the heat dissipation duct, and the airflow cooling the mounting cavity enters the cooling duct through the heat dissipation duct and the third air inlet). Simultaneously, the cooling duct is provided with a first air inlet and / or a second air inlet, which can introduce fresh cold air or slightly cooler air from the mounting cavity into the cooling duct to adequately cool the airflow entering from the third air inlet.

[0020] To improve cooling efficiency, both a first and a second air inlet can be installed simultaneously to increase the amount of cold air introduced and enhance the secondary cooling effect within the cooling duct. Alternatively, only one or the second air inlet can be installed. Furthermore, to optimize the duct layout, the first and second air inlets are positioned on opposite sides of the cooling fan along its axial direction, allowing air to enter from both sides. For example, the outer casing structure of the cooling fan can be strategically designed to allow air to enter from both the top and bottom. Alternatively, two fans can be arranged back-to-back to form a single component, allowing air to enter from both the top and bottom. In other designs, the first and second air inlets can also be located on the same side of the cooling fan.

[0021] Alternatively, the cooling fan may be a centrifugal fan.

[0022] Optionally, in any of the above technical solutions, the cooking appliance further includes: a first enclosure plate disposed within the mounting cavity; a middle partition plate disposed within the mounting cavity, forming a first flow channel with the first enclosure plate; a second enclosure plate disposed within the mounting cavity, located on the side of the middle partition plate away from the first enclosure plate, forming a second flow channel with the middle partition plate, the middle partition plate having an air vent connected to the second flow channel and the first flow channel; wherein, the first enclosure plate has a first air inlet connected to the first flow channel and the air inlet, and the outlet of the first flow channel is connected to the heat dissipation vent; a second air inlet disposed on the second enclosure plate or formed by the second enclosure plate and the middle partition plate, the second air inlet connected to the second flow channel and the air inlet; a cooling fan installed between the first enclosure plate and the second enclosure plate, the cooling air duct being an air duct formed by connecting the first air inlet, the second air inlet, the first flow channel, the air vent, and the second flow channel. The cooking appliance also includes a third air inlet, which is disposed on the first enclosure or formed by the first enclosure and the middle partition, for connecting the first flow channel and the mounting cavity (for example, when a heat dissipation duct is provided, the third air inlet can be connected to the mounting cavity through the heat dissipation duct).

[0023] In these technical solutions, the cooking appliance also includes a first enclosure, a middle partition, and a second enclosure. The first enclosure is disposed within the mounting cavity and has a first air inlet connecting it to a first flow channel. The outlet of the first flow channel is the final outlet of the entire cooling air duct. The middle partition is disposed within the mounting cavity and has an air vent. The second enclosure is located on the side of the middle partition facing away from the first enclosure and together with the middle partition forms a second flow channel. The second enclosure has a second air inlet, or the second enclosure and the middle partition can form a second air inlet, allowing the second enclosure to also introduce fresh cool air. A cooling fan is installed between the first and second enclosures; for example, the cooling fan can be installed between the first enclosure and the middle partition, or between the second enclosure and the middle partition, or partially installed between the first enclosure and the middle partition and partially installed between the second enclosure and the middle partition. The cooling air duct is specifically a complete path formed by the sequential connection of a first air inlet, a first flow channel, an air outlet on the middle partition, a second flow channel, and a second air inlet. Furthermore, a third air inlet is formed on the first enclosure or by the first enclosure and the middle partition, connecting the first flow channel to the mounting cavity. When the cooking appliance is in operation, the airflow from the mounting cavity or the outlet of the cooling air duct (i.e., the airflow after the first cooling) enters the first flow channel through the third air inlet. Simultaneously, external cold air also enters the first flow channel through the first and second air inlets, undergoing thorough mixing and heat exchange with the first-cooled airflow before being discharged through the outlet of the first flow channel. This completes the second cooling of the airflow in the mounting cavity and the hot airflow directly emitted from the cooking cavity. In this embodiment, the compact layout of the first enclosure, the middle partition, and the second enclosure creates an efficient and meandering cooling air duct within a limited space. This not only significantly increases the heat dissipation area and improves the orderliness of airflow organization and cooling efficiency, ensuring that the final exhaust gas temperature is low, but also features a regular overall structure and high space utilization. This is very beneficial for achieving thinner and more embedded installation of cooking utensils, enhancing the practicality and market competitiveness of the product.

[0024] Furthermore, the cooking appliance also includes a second drive unit, which is disposed in the mounting cavity on the side of the first enclosure away from the middle partition. A portion of the second drive unit extends from the first air inlet into the first flow channel and is connected to the cooling fan.

[0025] In these technical solutions, the second driving component can be a motor. During installation, the second driving component can be mounted on the outside of the cooling duct. The drive shaft of the second driving component can pass through the first air inlet and connect to the cooling fan to drive the second fan to rotate, thereby guiding airflow into the cooling duct from the inlet and out of the cooling duct from the outlet.

[0026] The combination of the first enclosure, the middle partition, the second enclosure, the cooling fan, and the second drive unit constitutes a secondary cooling assembly to achieve secondary heat dissipation and cooling of the cooking appliance.

[0027] In any of the above technical solutions, optionally, the housing assembly further includes: a housing, with an opening on one side; and a reflector, disposed inside the housing to divide the internal space of the housing into a cooking cavity and an installation cavity, the reflector having a connecting port for connecting the heat dissipation duct and the cooking cavity.

[0028] In these technical solutions, the housing assembly includes an outer shell and a reflector. An opening is provided on one side of the outer shell; the reflector is fixed inside the outer shell, dividing its interior into a cooking cavity and a mounting cavity, and a communication port is provided on the reflector for dissipating excess heat from the cooking cavity. By providing a communication port on the reflector to dissipate heat, the heat dissipation point in the cooking cavity is made higher, thus shortening the heat dissipation path within the cooking cavity and optimizing the internal structure of the cooking appliance.

[0029] Optionally, in any of the above technical solutions, the housing assembly further includes: a mounting cover plate disposed in the mounting cavity, forming a heat dissipation duct with the reflector.

[0030] In these technical solutions, the mounting cover is placed inside the mounting cavity, forming a heat dissipation duct together with the reflector. The heat dissipation duct, constructed by the reflector and mounting cover, ensures the airtightness and guidance of the cooling airflow, thus improving heat dissipation efficiency.

[0031] In any of the above technical solutions, optionally, the hot air assembly includes: a hot air fan rotatably mounted inside the cooking cavity for driving the airflow within the cooking cavity to circulate; and a heating device disposed inside the cooking cavity for heating the circulating airflow to form a hot airflow. The cooking appliance also includes a first driving member mounted in the mounting cavity, comprising a first drive shaft connected to a cooling fan and a hot air fan to drive the cooling fan and the hot air fan to rotate.

[0032] In these technical solutions, the hot air assembly includes a hot air fan and a heating element. The hot air fan is rotatably mounted inside the cooking cavity to drive the airflow circulation within the cooking cavity; the heating element is disposed inside the cooking cavity to heat the circulating airflow, thereby forming a hot airflow for cooking. Furthermore, the cooking appliance also includes a first drive component mounted within a mounting cavity, the first drive component comprising a first drive shaft. The first drive shaft is connected to both the hot air fan and the cooling fan, thus allowing a single drive component to simultaneously drive the hot air fan in the cooking cavity and the cooling fan in the mounting cavity, thereby simplifying the overall structure and reducing the overall manufacturing cost and power consumption.

[0033] The specific structure of the first drive component can be flexibly designed according to requirements. When a single-shaft structure is used, both the hot air fan and the cooling fan are located on the same side of the first drive component and are directly driven by a single first drive shaft, resulting in a compact structure and high transmission efficiency. If a dual-shaft structure is used, the hot air fan and the cooling fan are located on opposite sides of the first drive component and are each driven by an independent first drive shaft. This layout facilitates internal space allocation and heat management, providing greater design freedom for heat dissipation and airflow organization. Both structures achieve synchronous driving of the hot air circulation and cooling fans by a single first drive component, effectively simplifying the transmission structure and reducing cost and power consumption while ensuring system synchronization and operational reliability.

[0034] Optionally, the cooling fan is a centrifugal fan. The hot air fan is a centrifugal fan.

[0035] In any of the above technical solutions, optionally, at least a portion of the first driving member is located on the side of the mounting cover away from the reflector, the mounting cover is provided with a first through hole, the reflector is provided with a second through hole, a portion of the driving shaft extends into the heat dissipation duct through the first through hole and is connected to the heat dissipation fan, and a portion of the driving shaft extends into the cooking cavity through the second through hole and is connected to the hot air fan.

[0036] In these technical solutions, the first driving component is at least partially located on the side of the mounting cover away from the reflector. A first through-hole is correspondingly provided on the mounting cover, and a second through-hole is provided on the reflector. The first drive shaft passes through the first and second through-holes in sequence. One end of the shaft extends into the heat dissipation duct and is connected to the cooling fan, while the other end extends into the cooking cavity and is connected to the hot air fan, thus enabling a single driving component to simultaneously drive two fans. By isolating the main part of the first driving component on the outside of the mounting cover, component maintenance and replacement are greatly facilitated. Simultaneously, the overall layout is compact and reasonable, significantly improving space utilization and product reliability.

[0037] In any of the above technical solutions, optionally, the opening is located on the front side of the housing assembly. Optionally, along the height direction of the housing assembly, the hot air assembly is located at the top of the cooking cavity, and the mounting cavity is located above the cooking cavity.

[0038] In these technical solutions, the front of the housing assembly has an opening for placing and removing food, and the internal space adopts a vertical layout: the hot air assembly is installed at the top of the cooking cavity, while the mounting cavity is located directly above the cooking cavity. This layout makes full use of vertical space. Its working principle is as follows: the hot air fan located at the top of the cooking cavity blows hot air downwards, utilizing the natural upward property of hot air to form a uniform downward circulating airflow within the cooking cavity, ensuring more comprehensive heating of the food; at the same time, placing the mounting cavity at the top effectively isolates the motor, air ducts, and other operating heat-generating components from the cooking cavity, and allows for efficient heat dissipation through the upper space, avoiding mutual heat interference. This layout of an upper-mounted mounting cavity and top heating not only significantly improves the efficiency of hot air circulation and cooking uniformity, and reduces heat loss from the cooking cavity, but also effectively controls the overall external dimensions and floor space of the machine, making the product structure more compact and the appearance cleaner, particularly suitable for the needs of modern kitchens for built-in installation and efficient space utilization.

[0039] In any of the above technical solutions, optionally, the outer casing includes: a housing, an opening on one side of the housing, and a reflector installed inside the housing; a door frame assembly, disposed at the opening of the housing to close part of the opening, the door frame assembly having an opening communicating with the interior of the housing, and an air inlet and a heat dissipation outlet disposed on the door frame assembly.

[0040] In these technical solutions, the outer casing is specifically composed of a housing and a door frame assembly. One side of the housing has an opening, and a reflector is installed inside the housing. The door frame assembly is located at the opening of the housing to partially close it. The middle of the door frame assembly has an opening communicating with the interior of the housing for storing and retrieving food. Simultaneously, the air inlet and heat dissipation vent are integrated into the door frame assembly. This structure, by closing the opening of the housing with the door frame assembly and centrally located the air inlet and heat dissipation vent, allows external cooling air to be directly drawn in through the air inlet on the door frame, and ultimately, hot air is exhausted through the heat dissipation vent on the door frame. This effectively shortens the air duct length, reduces airflow resistance and energy loss, and improves heat dissipation efficiency. Furthermore, this integrated design, concentrating the main functional interfaces in the door frame assembly, significantly simplifies the overall structure, making the equipment more aesthetically pleasing and cleaner. It also greatly facilitates the achievement of a thinner product and embedded installation, optimizing the user experience in the kitchen space.

[0041] Optionally, in any of the above technical solutions, the outer shell also includes an inner liner, which is installed inside the shell and forms a cooking cavity with the reflector.

[0042] In these technical solutions, an inner liner is also installed inside the outer shell. The inner liner forms most of the structure of the cooking cavity, constituting the core load-bearing and heating space of the cooking cavity. It works closely with the reflector to ensure the structural integrity of the cooking cavity and the uniform distribution of the heat field. Simultaneously, the inner liner is typically made of a metal material with excellent thermal conductivity and high heat capacity, enabling it to quickly and evenly absorb and reflect the radiant heat generated by the heating element. This greatly improves the uniformity of the heat field within the cavity, preventing localized overheating and thus enhancing the cooking effect. Furthermore, a natural air insulation layer is formed between the inner liner and the outer shell, effectively reducing heat transfer to the outer shell during cooking, significantly improving the overall insulation performance of the appliance, lowering the temperature of the outer shell, enhancing safety, and reducing heat loss.

[0043] Optionally, in any of the above technical solutions, the cooking appliance also includes a frying bucket, which can be inserted into or removed from the cooking cavity through the opening, and when the frying bucket is inserted into the cooking cavity, the opening can be closed.

[0044] In these technical solutions, the cooking appliance can specifically be an air fryer. In this case, the cooking appliance also includes one or more frying drums. The frying drums are designed to be inserted entirely into or removed from the cooking cavity through an opening on the door frame assembly, enabling a pull-out operation. When the frying drum is fully pushed into the cooking cavity, its outer edge fits tightly against the door frame assembly, effectively sealing the opening. This design allows the frying drum to not only directly participate in the hot air cooking process as a container for food, but also to act as a door to the cooking cavity when closed, ensuring the cavity's airtightness. The pull-out frying drum structure greatly facilitates food handling and cleaning, enhancing the user experience; simultaneously, the reliable seal formed when the frying drum is closed effectively reduces heat leakage, significantly improving the cooking cavity's heat retention and thermal efficiency, ensuring even heating of food, shortening cooking time, and reducing energy consumption; the overall structure is compact, the operation is intuitive, and it aligns with the modern kitchen appliance design trends of humanization and efficiency.

[0045] In any of the above technical solutions, optionally, the heat dissipation vent is located above the opening along the height direction of the housing assembly.

[0046] In these technical solutions, the heat dissipation vents are positioned above the openings in the housing assembly. Since hot air, being less dense, naturally rises, placing the vents at the top directly utilizes this characteristic. This ensures that the direction of high-temperature exhaust is completely offset from the user's operating area, effectively preventing hot air from blowing directly onto the user's hands or body, greatly improving safety and comfort during use. Furthermore, the upward heat dissipation path helps prevent hot air from accumulating around the device, reducing the potential risk of high temperatures affecting cabinets or walls during embedded installation. The overall structure not only boasts excellent heat dissipation performance but also facilitates a cleaner and safer embedded design in the kitchen space.

[0047] In any of the above technical solutions, optionally, the air inlet is located on the side of the housing assembly where the opening is provided. This places the air inlet on the front of the housing assembly, thereby preventing the air inlet from being blocked when the cooking appliance is installed in a recessed manner, and ensuring smooth air intake.

[0048] In any of the above technical solutions, optionally, there are multiple air inlets, and along the height direction of the housing assembly, the multiple air inlets are located above and / or below the opening.

[0049] In these technical solutions, there are multiple air inlets, and these inlets can be individually or simultaneously located above and / or below the opening along the height direction of the housing assembly. The core advantage of this multi-position air inlet layout is that it can significantly optimize the overall cooling efficiency of the machine based on thermodynamic principles. When the air inlets are distributed in multiple directions above and below the opening, the natural sinking characteristic of cold air can be fully utilized to introduce cooling airflow from multiple directions, forming a three-dimensional and efficient cooling air duct, greatly increasing the effective air intake area and cooling airflow, and avoiding local overheating. At the same time, the multi-inlet design reduces the flow velocity and wind noise of a single air inlet, improves the quietness of the equipment operation, and enhances the protection against external dust intrusion.

[0050] Optionally, in any of the above technical solutions, the cooking cavity includes at least two cooking zones, and there are at least two hot air components, with the at least two hot air components and the at least two cooking zones being configured in a one-to-one correspondence.

[0051] In these technical solutions, the cooking cavity is divided into at least two independent cooking zones, and at least two sets of hot air components are correspondingly configured, with each set of hot air components corresponding to one cooking zone. By equipping each cooking zone with a dedicated hot air fan and heating element, independent and precise control of the airflow speed and temperature in different zones can be achieved. The working principle is as follows: users can simultaneously place the required ingredients in different cooking zones and independently select the most suitable temperature and time settings. The hot air components in each zone operate independently, generating directional circulating hot airflow to ensure that different foods are cooked synchronously within the same device without cross-contamination of flavors. This design greatly improves the cooking flexibility and efficiency of the equipment, meets the diverse and personalized cooking needs of users, and avoids cross-contamination of food flavors.

[0052] Alternatively, the cooking appliance may include an air fryer, an oven, or a steam oven.

[0053] Optionally, the cooking appliance also includes a control panel mounted on the door frame assembly for controlling the operation of the product.

[0054] Optionally, the cooking appliance is an air fryer; and / or a built-in cooking appliance, such as a built-in air fryer. By making the cooking appliance built-in, the countertop space occupied by the cooking appliance can be reduced, which helps to improve the overall aesthetics of the kitchen. The cooking appliance is an air fryer and is built-in, which changes the existing placement of air fryers, reduces the countertop space occupied by the air fryer, and improves the competitiveness of the air fryer.

[0055] A second aspect of this utility model provides a cooking appliance, which is an embedded cooking appliance. The embedded cooking appliance includes: a housing assembly, which includes a cooking cavity and a mounting cavity, and an opening on one side of the housing assembly communicating with the cooking cavity; a hot air assembly disposed in the cooking cavity for generating a circulating hot airflow within the cooking cavity; an air inlet disposed on the housing assembly and communicating with the mounting cavity; a heat dissipation vent disposed on the side of the housing assembly with the opening; a cooling fan rotatably disposed in the mounting cavity for drawing air from outside the housing assembly into the mounting cavity through the air inlet; a cooling duct disposed in the mounting cavity, with its inlet communicating with the air inlet and the interior of the mounting cavity, and its outlet communicating with the heat dissipation vent; and a cooling fan rotatably disposed in the cooling duct for drawing air from the mounting cavity and the air inlet through the inlet of the cooling duct and exhausting air through the outlet of the cooling duct.

[0056] The cooking appliance provided according to the embodiments of this utility model is an embedded cooking appliance, that is, an appliance that can be embedded into a cabinet or other similar installation during use. The embedded cooking appliance includes a housing assembly, a hot air assembly, an air inlet, a heat dissipation vent, a cooling fan, a cooling duct, and a cooling fan. The housing assembly includes a cooking chamber and a mounting chamber. One side of the housing assembly has an opening communicating with the cooking chamber, through which food to be cooked or a container for holding food can enter the cooking chamber. The mounting chamber, also called a heat dissipation chamber, is used to install components such as the electronic control board and motor. The hot air assembly is located within the cooking chamber and is used to generate a circulating hot airflow for cooking food. The air inlet is located on the housing assembly and is used to connect the mounting chamber to the external environment where the cooking appliance is located. Cold air from the external environment is drawn into the mounting chamber by the cooling fan and the cooling fan within the mounting chamber, and then enters the cooling duct from the mounting chamber under the action of the cooling fan and the cooling fan. The heat dissipation vent is located on the side of the housing assembly with an opening. Cold air entering through the air inlet undergoes heat exchange in the mounting cavity and cooling duct before being discharged through the heat dissipation vent. Specifically, the mounting cavity contains a cooling fan and a cooling duct. The rotation of the cooling fan generates negative pressure within the mounting cavity, allowing cold air from the external environment to enter through the air inlet, thus cooling the components within the mounting cavity. A rotatable cooling fan is installed within the cooling duct. The inlet of the cooling duct is directly or indirectly connected to the mounting cavity, and it is also connected to the air inlet. The outlet of the cooling duct is connected to the heat dissipation vent. The rotation of the cooling fan simultaneously draws in air from both the air inlet and the mounting cavity, and the air drawn in by the cooling fan is discharged through the outlet of the cooling duct.

[0057] In this process, under the action of the cooling fan and the heat dissipation fan, the cold air entering from the air inlet first passes through the mounting cavity, where the cold air cools the components and removes some of the heat from the mounting cavity. This is the first heat dissipation. The airflow heated in the mounting cavity then enters the cooling duct. At the same time, under the negative pressure generated by the rotation of the cooling fan, some air from outside the housing assembly enters the cooling duct directly or indirectly through the air inlet. For example, an air intake channel can be set between the cooling duct and the air inlet to ensure that the cold air from outside can directly enter the cooling duct. In this way, the heated air drawn from the mounting cavity can be cooled a second time in the cooling duct by the cold air from outside. The airflow after the second heat dissipation is finally discharged into the external environment where the cooking appliance is located through the outlet of the cooling duct and the heat dissipation port.

[0058] The built-in cooking appliance in this embodiment uses a cooling fan to draw in external airflow for initial cooling of the mounting cavity. The cooling duct and fan then provide a second cooling effect on the airflow within the cavity, creating a dual cooling structure. This significantly reduces the temperature of the exhaust airflow, effectively improving the overall heat dissipation efficiency and long-term operational reliability. Furthermore, the placement of the heat vents on the open side allows hot air to escape directly from the front of the appliance, reducing heat buildup around the unit and preventing heat accumulation between the appliance and the cabinet, thus protecting the cabinet. Additionally, by making the appliance built-in, especially when it's an air fryer, the traditional placement of air fryers is changed, reducing countertop space occupied and improving the overall aesthetics of the kitchen.

[0059] Other structures of the embedded cooking appliance can be configured accordingly, referring to the structure of the cooking appliance in the first aspect embodiment. Additional aspects and advantages of this invention will become apparent in the following description, or may be learned through practice of this invention. Attached Figure Description

[0060] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0061] Figure 1 This is one of the structural schematic diagrams of the cooking utensil in the embodiments of this utility model;

[0062] Figure 2 This is the second structural schematic diagram of the cooking utensil in an embodiment of this utility model;

[0063] Figure 3 This is a partial structural schematic diagram of the cooking utensil in an embodiment of this utility model;

[0064] Figure 4 This is a schematic diagram of the secondary cooling component of the cooking appliance in an embodiment of this utility model;

[0065] Figure 5 This is the third structural schematic diagram of the cooking utensil in the embodiments of this utility model.

[0066] In the attached figures, the following labels are used:

[0067] 1. Shell assembly, 10. Cooking cavity, 102. Cooking area, 11. Mounting cavity, 12. Opening, 13. Outer shell, 132. Shell, 1322. Opening, 134. Door frame assembly, 136. Inner liner, 14. Reflector, 142. Second through hole, 144. Connecting port, 15. Mounting cover, 152. First through hole, 2. Hot air assembly, 22. Hot air fan, 24. Heating device, 3. Air inlet, 4. Heat dissipation port, 52. Heat dissipation duct, 54. Heat dissipation fan, 56. First drive unit, 6. Secondary cooling assembly, 60. Cooling duct, 61. Cooling fan, 62. First enclosure, 622. First air inlet, 63. Middle partition, 632. Through hole, 64. Second enclosure, 65. First flow channel, 66. Second flow channel, 67. Third air inlet, 68. Second drive unit, 69. Second air inlet, 7. Mixing component, 70. Mixing cavity, 72. First inlet, 74. Second inlet, 76. First outlet, 8. Frying barrel. Detailed Implementation

[0068] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0069] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0070] The following reference Figures 1 to 5 The following describes the cooking appliances provided in the embodiments of this application.

[0071] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of the first aspect of this utility model provides a cooking appliance, including a housing assembly 1, a hot air assembly 2, an air inlet 3, a heat dissipation vent 4, a cooling fan 54, a cooling air duct 60, and a cooling fan 61. The housing assembly 1 includes a cooking chamber 10 and a mounting chamber 11. One side of the housing assembly 1 has an opening 12 communicating with the cooking chamber 10, allowing food to be cooked or a container for holding food to enter the cooking chamber 10 through the opening 12. The mounting chamber 11 is an equipment cavity, also called a heat dissipation cavity, used to mount components such as an electronic control board and a motor. The hot air assembly 2 is disposed within the cooking chamber 10 and is used to generate a circulating hot airflow for cooking food. The air inlet 3 is disposed on the housing assembly 1 and is used to connect the mounting chamber 11 to the external environment of the cooking appliance. Cold air from the external environment is drawn into the mounting chamber 11 by the cooling fan 54 and the cooling fan 61 within the mounting chamber 11, and then enters the cooling air duct 60 from the mounting chamber 11 under the action of the cooling fan 54 and the cooling fan 61. A heat dissipation vent 4 is located on the side of the housing assembly 1 where the opening 12 is located. Cold air entering from the air inlet 3 enters the mounting cavity 11 and the cooling duct 60 for heat exchange, and then exits from the heat dissipation vent 4. Specifically, a cooling fan 54 and a cooling duct 60 are installed inside the mounting cavity 11. The rotation of the cooling fan 54 generates negative pressure inside the mounting cavity 11, allowing cold air from the external environment of the cooking appliance to enter the mounting cavity 11 through the air inlet 3, thereby cooling the components inside the mounting cavity 11. A rotatable cooling fan 61 is installed inside the cooling duct 60. The inlet of the cooling duct 60 is directly or indirectly connected to the mounting cavity 11, and it is also connected to the air inlet 3. The outlet of the cooling duct 60 is connected to the heat dissipation vent 4. The rotation of the cooling fan 61 can simultaneously draw in airflow from the air inlet 3 and the mounting cavity 11, and the airflow drawn in by the cooling fan 61 can be discharged through the outlet of the cooling duct 60.

[0072] In this process, under the action of the cooling fan 54 and the cooling fan 61, the cold air entering from the air inlet 3 first passes through the mounting cavity 11. The cold air cools the components in the mounting cavity 11, thereby removing some of the heat in the mounting cavity 11. This is the first heat dissipation. The airflow heated in the mounting cavity 11 enters the cooling air duct 60. At the same time, under the negative pressure generated by the rotation of the cooling fan 61, some air outside the housing assembly 1 enters the cooling air duct 60 directly or indirectly through the air inlet 3. For example, an air intake channel can be set between the cooling air duct 60 and the air inlet 3 to ensure that the cold air outside can directly enter the cooling air duct 60. In this way, the heated air drawn from the mounting cavity 11 can be cooled a second time in the cooling air duct 60 by the cold air outside. The airflow after the second heat dissipation is finally discharged to the external environment where the cooking appliance is located through the outlet and heat dissipation port 4 of the cooling air duct 60.

[0073] In this embodiment, the cooking appliance, guided by the cooling fan 54, draws in external airflow to achieve a first cooling effect on the mounting cavity 11. The cooling duct 60 and the cooling fan 61 then provide a second cooling effect on the airflow within the mounting cavity 11. This creates a dual cooling structure within the mounting cavity 11, significantly reducing the temperature of the final exhaust airflow from the cooking appliance and effectively improving the overall heat dissipation efficiency and long-term operational reliability. Simultaneously, the design of the heat dissipation vent 4 located on the side of the opening 12 facilitates the direct exhaust of hot air from the front of the cooking appliance. This not only reduces heat accumulation around the appliance but also makes it easier to achieve embedded installation, contributing to a cleaner and more aesthetically pleasing kitchen space and improving space utilization.

[0074] Optionally, such as Figure 5 As shown, the air inlet 3 is located on the side of the housing assembly 1 where the opening 12 is provided. This places the air inlet 3 on the front of the housing assembly 1, thereby preventing the air inlet 3 from being blocked when the cooking appliance is installed in a recessed manner, and ensuring smooth air intake through the air inlet 3.

[0075] In any of the above embodiments, optionally, as Figure 1 and Figure 2 As shown, the cooking appliance also includes a connecting port 144. The connecting port 144 connects the mounting cavity 11 and the cooking cavity 10. Excess hot airflow due to positive pressure in the cooking cavity 10 can first enter the mounting cavity 11 through the connecting port 144. Then, it is cooled by cold air introduced by the cooling fan 54 in the mounting cavity 11 before entering the cooling duct 60, where it is further cooled, and finally discharged from the heat dissipation port 4. Alternatively, the connecting port 144 connects the inlet of the cooling duct 60 and the cooking cavity 10. Excess hot airflow due to positive pressure in the cooking cavity 10 can enter the cooling duct 60 and be discharged through the cooling port. By cooling the excess hot airflow discharged from the cooking cavity 10, the temperature of the hot air discharged from the cooking appliance can be greatly reduced, avoiding the adverse effects of high-temperature exhaust gas on the embedded installation environment, and providing the most basic guarantee for setting the cooking appliance as an embedded appliance.

[0076] In any of the above embodiments, optionally, as Figure 1 and Figure 2As shown, the cooking appliance also includes a heat dissipation duct 52. The heat dissipation duct 52 is disposed inside the mounting cavity 11, while the electronic control board, the drive device for driving the hot air fan 22 of the hot air assembly 2, etc., are disposed outside the heat dissipation duct 52 and inside the mounting cavity 11. The inlet of the heat dissipation duct 52 is connected to the mounting cavity 11, and the outlet of the heat dissipation duct 52 is connected to the inlet of the cooling duct 60. The cooling fan 54 is rotatably disposed within the cooling duct 52. By rotating the cooling fan 54, external cold air can first enter the mounting cavity 11, and then enter the cooling duct 52 from the inlet. In this way, through the cooperation of the cooling duct 52 and the cooling fan 54, the airflow entering the mounting cavity 11 from the air inlet 3 can be guided so that the airflow can pass through the electronic control board and motor and other parts that need to be cooled. This allows the airflow to enter the cooling duct 60 only after cooling the parts, avoiding the situation where the external cold air is directly discharged from the cooling duct 60, resulting in poor cooling effect of the cold air on the parts in the mounting cavity 11.

[0077] When a heat dissipation duct 52 is provided, the cooking cavity 10 can be directly connected to the heat dissipation duct 52 or the cooling duct 60 through the connecting port 144, thereby connecting the cooking cavity 10 with the inlet of the mounting cavity 11 or the cooling duct 60. That is, the heat in the cooking cavity 10 can be directly discharged into the heat dissipation duct 52 or the cooling duct 60, without first entering the mounting cavity 11 and then entering the heat dissipation duct 52 from the mounting cavity 11.

[0078] In any of the above embodiments, optionally, as Figure 1 , Figure 2 and Figure 3As shown, the cooking appliance also includes a mixing element 7, which is disposed within the mounting cavity 11. The mixing element 7 has a mixing chamber 70 inside, and is provided with a first inlet 72, a second inlet 74, and a first outlet 76 communicating with the mixing chamber 70. The first outlet 76 is connected to the inlet of the cooling air duct 60, the first inlet 72 is connected to the outlet of the heat dissipation air duct 52, and the second inlet 74 is connected to the cooking cavity 10 (for example, the second inlet 74 can be connected to the cooking cavity 10 through the connecting port 144, thereby realizing the connection between the cooking cavity 10 and the mounting cavity 11 through the heat dissipation air duct 52 and the mixing element 7). When the cooking appliance is in operation, the airflow that exchanges heat with the mounting cavity 11 and performs the first cooling on the mounting cavity 11 enters the mixing chamber 70 through the first inlet 72 under the action of the cooling fan 54. At the same time, the excess hot airflow in the cooking cavity 10 due to positive pressure is introduced into the mixing chamber 70 through the connecting port 144 and the other through the second inlet 74. The two airflows (the airflow that cools the mounting cavity 11 and the airflow that is discharged from the cooking cavity 10) fully impact, mix and exchange heat in the mixing chamber 70, achieving efficient active cooling. The mixed airflow is then transported to the cooling duct 60 through the first outlet 76, where it is cooled a second time before being discharged through the heat dissipation port 4. By directly introducing the excess hot airflow that needs to be discharged from the cooking cavity 10 into the mixing component 7 and pre-mixing and cooling it with the primary cooling air in the mixing component 7, the heat dissipation efficiency of the excess hot air discharged from the cooking cavity 10 is significantly improved, the temperature of the gas finally discharged outside the machine is effectively reduced, and the adverse effects of high-temperature exhaust gas on the embedded installation environment are avoided.

[0079] In any of the above embodiments, optionally, as Figure 2 and Figure 4 As shown, the inlet of the cooling air duct 60 includes a third air inlet 67. The airflow cooling the mounting cavity 11 can enter the cooling air duct 60 through the third air inlet 67 (when a heat dissipation air duct 52 is provided, the third air inlet 67 is connected to the mounting cavity 11 through the heat dissipation air duct 52, and the airflow cooling the mounting cavity 11 enters the cooling air duct 60 through the heat dissipation air duct 52 and the third air inlet 67). At the same time, the cooling air duct 60 is provided with a first air inlet 622 and / or a second air inlet 69. The first air inlet 622 and the second air inlet 69 can introduce fresh cold air or slightly cooler air from the mounting cavity 11 into the cooling air duct 60 to fully cool the airflow entering from the third air inlet 67.

[0080] To improve cooling efficiency, a first air inlet 622 and a second air inlet 69 can be simultaneously provided to increase the amount of cold air introduced and enhance the secondary cooling effect of the airflow within the cooling duct 60. Alternatively, only the first air inlet 622 or the second air inlet 69 can be provided. Furthermore, to improve the rational layout of the air duct, the first air inlet 622 and the second air inlet 69 are positioned on opposite sides of the cooling fan 61 along its axial direction, meaning air can enter from both sides of the cooling fan 61. For example, the outer casing structure of the cooling fan 61 can be rationally designed to allow air to enter from both the top and bottom sides. Alternatively, two fans can be arranged back-to-back to form a single component as the cooling fan 61, allowing air to enter from both the top and bottom sides. Of course, in other solutions, the first air inlet 622 and the second air inlet 69 can also be located on the same side of the cooling fan 61.

[0081] Optionally, the cooling fan 61 is a centrifugal fan.

[0082] In any of the above embodiments, optionally, as Figure 2 and Figure 4As shown, the cooking appliance also includes a first enclosure 62, a middle partition 63, and a second enclosure 64. The first enclosure 62 is disposed within the mounting cavity 11 and has a first air inlet 622 for connecting the air inlet 3 and the first flow channel 65. The outlet of the first flow channel 65 is the final outlet of the entire cooling air duct 60. The middle partition 63 is disposed within the mounting cavity 11 and has an air outlet 632. The second enclosure 64 is located on the side of the middle partition 63 away from the first enclosure 62 and together with the middle partition 63 forms a second flow channel 66. The second enclosure 64 has a second air inlet 69, or the second enclosure 64 and the middle partition 63 can form a second air inlet 69 so that the second enclosure 64 can also introduce new cold air. The cooling fan 61 is installed between the first enclosure 62 and the second enclosure 64. For example, the cooling fan 61 can be installed between the first enclosure 62 and the middle partition 63, or between the second enclosure 64 and the middle partition 63, or partially installed between the first enclosure 62 and the middle partition 63 and partially installed between the second enclosure 64 and the middle partition 63. The cooling air duct 60 is specifically a complete path formed by the sequential connection of the first air inlet 622, the first flow channel 65, the air outlet 632 on the middle partition 63, the second flow channel 66, and the second air inlet 69. In addition, a third air inlet 67 is formed on the first enclosure 62 or by the first enclosure 62 and the middle partition 63. The third air inlet 67 is used to connect the first flow channel 65 to the outlet of the heat dissipation air duct 52. When the cooking appliance is in operation, the airflow from the outlet of the heat dissipation duct 52 (i.e., the airflow after the first cooling) enters the first flow channel 65 through the third air inlet 67. At the same time, external cold air also enters the first flow channel 65 through the first air inlet 622 and the second air inlet 69. After fully mixing and exchanging heat with the airflow after the first cooling, the airflow is discharged through the outlet of the first flow channel 65. This completes the second cooling of the airflow in the mounting cavity 11 and the hot airflow directly emitted from the cooking cavity 10. In this embodiment, the compact layout of the first enclosure 62, the middle partition 63, and the second enclosure 64 constructs an efficient and meandering cooling duct 60 within a limited space. This not only significantly increases the heat dissipation area and improves the orderliness of the airflow organization and cooling efficiency, ensuring a low final exhaust gas temperature, but also results in a regular overall structure and high space utilization. This is very beneficial for achieving thinner and embedded installation of the cooking appliance, enhancing the product's practicality and market competitiveness.

[0083] Furthermore, such as Figure 2 and Figure 4 As shown, the cooking appliance also includes a second drive member 68, which is disposed in the mounting cavity 11 and located on the side of the first enclosure 62 away from the middle partition 63. A portion of the second drive member 68 extends from the first air inlet 622 into the first flow channel 65 and is connected to the cooling fan 61.

[0084] In these embodiments, the second drive member 68 can be a motor. When installed, the second drive member 68 can be installed on the outside of the cooling duct 60. The drive shaft of the second drive member 68 can pass through the first air inlet 622 and be connected to the cooling fan 61 to drive the second fan to rotate, thereby guiding the airflow to enter from the inlet of the cooling duct 60 and exit from the outlet of the cooling duct 60.

[0085] Among them, such as Figure 2 and Figure 4 As shown, the combination of the first enclosure 62, the middle partition 63, the second enclosure 64, the cooling fan 61, and the second drive unit 68 constitutes the secondary cooling assembly 6 to achieve secondary heat dissipation and cooling of the cooking appliance.

[0086] In any of the above embodiments, optionally, as Figure 1 and Figure 5 As shown, the housing assembly 1 includes an outer shell 13 and a reflector 14. An opening 12 is provided on one side of the outer shell 13. The reflector 14 is fixed inside the outer shell 13, dividing its interior into a cooking cavity 10 and a mounting cavity 11. A connecting port 144 is provided on the reflector 14 to connect the heat dissipation duct 52 and the cooking cavity 10, thereby dissipating excess heat from the cooking cavity 10. By providing the connecting port 144 on the reflector 14 to dissipate heat, the heat dissipation point in the cooking cavity 10 is elevated, which shortens the heat dissipation path within the cooking cavity 10 and optimizes the internal structure of the cooking appliance.

[0087] In any of the above embodiments, optionally, as Figure 1 and Figure 5 As shown, the housing assembly 1 also includes a mounting cover 15, which is disposed within the mounting cavity 11 and together with the reflector 14 forms a heat dissipation duct 52. The heat dissipation duct 52 is constructed by the reflector 14 and the mounting cover 15, ensuring the sealing and guiding of the cooling airflow and improving the heat dissipation efficiency.

[0088] In any of the above embodiments, optionally, as Figure 1 and Figure 3 As shown, the hot air assembly 2 includes a hot air fan 22 and a heating element 24. The hot air fan 22 is rotatably mounted inside the cooking cavity 10 to drive the airflow within the cooking cavity 10. The heating element 24 is disposed inside the cooking cavity 10 to heat the circulating airflow, thereby forming a hot airflow for cooking. Furthermore, the cooking appliance also includes a first drive member 56 mounted inside the mounting cavity 11. The first drive member 56 includes a first drive shaft. The first drive shaft is connected to both the hot air fan 22 and the cooling fan 54, allowing a single drive member to simultaneously drive the hot air fan 22 in the cooking cavity 10 and the cooling fan 54 in the mounting cavity 11, thus simplifying the overall structure and reducing the overall manufacturing cost and power consumption.

[0089] The specific structure of the first driving component 56 can be flexibly designed according to requirements. When a single-shaft structure is used, both the hot air fan 22 and the cooling fan 54 are located on the same side of the first driving component 56 and are directly driven by a single first driving shaft, resulting in a compact structure and high transmission efficiency. If a dual-shaft structure is used, the hot air fan 22 and the cooling fan 54 are located on opposite sides of the first driving component 56 and are each driven by an independent first driving shaft. This layout facilitates internal space allocation and heat management, providing greater design freedom for heat dissipation and airflow organization. Both structures achieve synchronous driving of the hot air circulation and cooling fans by a single first driving component 56, effectively simplifying the transmission structure and reducing cost and power consumption while ensuring system synchronization and operational reliability.

[0090] Optionally, cooling fan 54 is a centrifugal fan. Hot air fan 22 is a centrifugal fan.

[0091] In any of the above embodiments, optionally, as Figure 1 and Figure 3 As shown, at least a portion of the first drive member 56 is located on the side of the mounting cover 15 away from the reflector 14. The mounting cover 15 is provided with a first through hole 152, and the reflector 14 is provided with a second through hole 142. A portion of the drive shaft extends into the heat dissipation duct 52 through the first through hole 152 and is connected to the heat dissipation fan 54. A portion of the drive shaft extends into the cooking cavity 10 through the second through hole 142 and is connected to the hot air fan 22.

[0092] In these embodiments, the first drive component 56 is at least partially located on the side of the mounting cover 15 opposite to the reflector 14. The mounting cover 15 has a corresponding first through-hole 152, and the reflector 14 has a second through-hole 142. The first drive shaft passes sequentially through the first through-hole 152 and the second through-hole 142. One end of the shaft extends into the heat dissipation duct 52 and is connected to the cooling fan 54, while the other end extends into the cooking cavity 10 and is connected to the hot air fan 22, thus enabling a single drive component to simultaneously drive two fans. By isolating the main part of the first drive component 56 on the outside of the mounting cover 15, the maintenance and replacement of the component are greatly facilitated. Simultaneously, the overall layout is compact and reasonable, significantly improving space utilization and product reliability.

[0093] In any of the above embodiments, optionally, as Figure 1 As shown, the opening 12 is disposed on the front side of the housing assembly 1 along the front-rear direction. Optionally, as... Figure 1 , Figure 3 and Figure 5 As shown, along the height direction of the housing assembly 1, the hot air assembly 2 is disposed at the top of the cooking cavity 10, and the mounting cavity 11 is located above the cooking cavity 10.

[0094] In these embodiments, the front side of the housing assembly 1 has an opening 12 for placing and removing food. The internal space adopts a longitudinal layout: the hot air assembly 2 is installed at the top of the cooking cavity 10, while the mounting cavity 11 is located directly above the cooking cavity 10. This layout makes full use of vertical space. Its working principle is as follows: the hot air fan 22 located at the top of the cooking cavity 10 blows hot air downwards, utilizing the natural upward property of hot air to form a uniform downward circulating airflow within the cooking cavity 10, ensuring more comprehensive heating of the food. At the same time, placing the mounting cavity 11 at the top effectively isolates the motor, air duct, and other operating heat-generating components from the cooking cavity 10, and allows for efficient heat dissipation through the upper space, avoiding mutual heat interference. This layout of the upper mounting cavity 11 and top heating not only significantly improves the efficiency of hot air circulation and cooking uniformity, and reduces heat loss from the cooking cavity 10, but also effectively controls the overall external dimensions and floor space of the machine, making the product structure more compact and the appearance cleaner. It is particularly suitable for the needs of modern kitchens for built-in installation and efficient space utilization.

[0095] In any of the above embodiments, optionally, as Figure 1 and Figure 5 As shown, the outer casing 13 is specifically composed of a housing 132 and a door frame assembly 134. The housing 132 has an opening 1322 on one side, and a reflector 14 is installed inside the housing 132. The door frame assembly 134 is located at the opening 1322 of the housing 132 to partially close the opening 1322. The middle of the door frame assembly 134 has an opening 12 communicating with the interior of the housing 132 for storing and retrieving food. Simultaneously, an air inlet 3 and a heat dissipation vent 4 are integrated onto the door frame assembly 134. This structure, through the door frame assembly 134 enclosing the opening 1322 of the housing 132 and centrally setting the air inlet 3 and heat dissipation vent 4, allows external cooling air to be directly drawn in from the air inlet 3 on the door frame, and finally the hot air is discharged from the heat dissipation vent 4 on the door frame. This effectively shortens the air duct length, reduces airflow resistance and energy loss, and improves heat dissipation efficiency. At the same time, this integrated design, which concentrates the main functional interfaces in the door frame assembly 134, greatly simplifies the overall structure, makes the equipment look cleaner and more beautiful, and is very conducive to achieving product thinness and embedded installation, thus optimizing the user experience in the kitchen space.

[0096] In any of the above embodiments, optionally, as Figure 1 and Figure 5 As shown, the outer shell 13 also includes an inner liner 136, which is installed inside the shell 132 and forms a cooking cavity 10 with the reflector 14.

[0097] In these embodiments, an inner liner 136 is also provided inside the shell 132. The inner liner 136 forms most of the structure of the cooking cavity 10, that is, the inner liner 136 constitutes the core load-bearing and heating space of the cooking cavity 10. It fits tightly with the reflector 14 to ensure the structural integrity of the cooking cavity 10 and the uniform distribution of the heat field. At the same time, the inner liner 136 is usually made of a metal material with excellent thermal conductivity and high heat capacity, which can quickly and uniformly absorb and reflect the radiant heat generated by the heating device 24, greatly improving the uniformity of the heat field inside the cavity, avoiding local overheating, and thus improving the cooking effect. Meanwhile, a natural air insulation layer is formed between the inner liner 136 and the outer shell 132, effectively reducing the transfer of heat to the outer shell 13 during the cooking process, significantly improving the overall heat preservation performance of the machine, reducing the temperature of the outer shell 132, improving the safety of use, and reducing heat loss.

[0098] In any of the above embodiments, optionally, as Figures 1 to 5 As shown, the cooking appliance also includes a frying bucket 8, which can be inserted into or removed from the cooking cavity 10 through the opening 12. When the frying bucket 8 is inserted into the cooking cavity 10, the frying bucket 8 can close the opening 12.

[0099] In these embodiments, the cooking appliance may specifically be an air fryer. The cooking appliance also includes one or more frying drums 8. The frying drum 8 is designed to be inserted entirely into or removed from the cooking cavity 10 through an opening 12 on the door frame assembly 134, enabling a pull-out operation. When the frying drum 8 is fully pushed into the cooking cavity 10, its outer edge fits tightly against the door frame assembly 134, effectively sealing the opening 12. This design allows the frying drum 8 to not only directly participate in the hot air cooking process as a container for food, but also to act as a door to the cooking cavity 10 when closed, ensuring the sealing of the cooking cavity 10. The pull-out frying drum 8 structure greatly facilitates food handling and cleaning, improving the user experience; simultaneously, the reliable seal formed when the frying drum 8 is closed effectively reduces heat leakage, significantly improving the heat retention and thermal efficiency of the cooking cavity 10, ensuring even heating of food, shortening cooking time, and reducing energy consumption; the overall structure is compact, the operation is intuitive, and it conforms to the design trends of modern kitchen appliances that emphasize humanization and efficiency.

[0100] In any of the above embodiments, optionally, as Figure 5 As shown, along the height direction of the housing assembly 1, the heat dissipation vent 4 is located above the opening 12.

[0101] In these embodiments, the heat dissipation vent 4 is positioned above the opening 12 of the housing assembly 1. Since hot air, being less dense, naturally rises, placing the heat dissipation vent 4 at the top directly utilizes this characteristic, ensuring that the direction of high-temperature exhaust is completely offset from the user's front operating area. This effectively prevents hot air from blowing directly onto the user's hands or body, greatly improving safety and comfort during use. Furthermore, the upward heat dissipation path helps prevent hot airflow from accumulating around the device, reducing the potential risk of high temperatures affecting cabinets or walls during embedded installation. The overall structure not only boasts excellent heat dissipation performance but also facilitates a clean and safe embedded design in the kitchen space.

[0102] In any of the above embodiments, optionally, the air inlet 3 is located on the side of the housing assembly 1 where the opening 12 is provided. This places the air inlet 3 on the front of the housing assembly 1, thereby preventing the air inlet 3 from being blocked when the cooking appliance is embedded in the housing assembly, and ensuring smooth air intake through the air inlet 3.

[0103] In any of the above embodiments, optionally, as Figures 1 to 5 As shown, there are multiple air inlets 3, and along the height direction of the housing assembly 1, multiple air inlets 3 are located above and / or below the opening 12.

[0104] In this embodiment, there are multiple air inlets 3, and these air inlets 3 can be respectively or simultaneously located above and / or below the opening 12 along the height direction of the housing assembly 1. The core advantage of this multi-position air inlet layout is that it can significantly optimize the overall cooling efficiency of the machine based on thermodynamic principles. When the air inlets 3 are distributed in multiple directions above and below the opening 12, the natural sinking characteristic of cold air can be fully utilized to introduce cooling airflow from multiple directions, forming a three-dimensional and efficient cooling air duct, greatly increasing the effective air intake area and cooling airflow, and avoiding local overheating. At the same time, the multi-air inlet 3 design reduces the flow rate and wind noise of a single air inlet 3, improves the quietness of the equipment during operation, and enhances the protection against external dust intrusion.

[0105] In any of the above embodiments, optionally, as Figure 1 and Figure 5 As shown, the cooking cavity 10 includes at least two cooking zones 102, and there are at least two hot air components 2, with each of the at least two hot air components 2 and the at least two cooking zones 102 being configured in a one-to-one correspondence.

[0106] In this embodiment, the cooking cavity 10 is divided into at least two independent cooking zones 102, and at least two sets of hot air components 2 are correspondingly configured, with each set of hot air components 2 corresponding to one cooking zone 102. By independently equipping each cooking zone 102 with a dedicated hot air fan 22 and heating element 24, independent and precise control of the wind speed and temperature of different zones can be achieved. Its working principle is as follows: users can simultaneously place the required ingredients into different cooking zones 102 and independently select the most suitable temperature and time settings. The hot air components 2 of each zone operate independently, generating directional circulating hot airflow to ensure that different foods are cooked synchronously in the same device without cross-contamination of flavors. This design greatly improves the cooking flexibility and efficiency of the device, meets the diverse and personalized cooking needs of users, and avoids cross-contamination of food flavors.

[0107] Alternatively, the cooking appliance may include an air fryer, an oven, or a steam oven.

[0108] Optionally, the cooking appliance also includes a control panel mounted on the door frame assembly 134 for controlling the operation of the product.

[0109] Optionally, the cooking appliance is an air fryer; and / or a built-in cooking appliance, such as a built-in air fryer. By making the cooking appliance built-in, the countertop space occupied by the cooking appliance can be reduced, which helps to improve the overall aesthetics of the kitchen. The cooking appliance is an air fryer and is built-in, which changes the existing placement of air fryers, reduces the countertop space occupied by the air fryer, and improves the competitiveness of the air fryer.

[0110] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of this utility model provides a cooking appliance, which is an embedded cooking appliance. The embedded cooking appliance includes a housing assembly 1, a hot air assembly 2, an air inlet 3, a heat dissipation vent 4, a cooling fan 54, a cooling air duct 60, and a cooling fan 61. The housing assembly 1 includes a cooking cavity 10 and a mounting cavity 11. One side of the housing assembly 1 has an opening 12 communicating with the cooking cavity 10, through which food to be cooked or a container for holding food can enter the cooking cavity 10. The mounting cavity 11 is a device cavity, also called a heat dissipation cavity, and is used to install components such as an electronic control board and a motor. The hot air assembly 2 is disposed within the cooking cavity 10 and is used to generate a circulating hot airflow for cooking food. An air inlet 3 is located on the housing assembly 1, connecting the mounting cavity 11 to the external environment of the cooking appliance. Cold air from the external environment is drawn into the mounting cavity 11 by the cooling fan 54 and cooling fan 61 within it, and then enters the cooling duct 60 from the mounting cavity 11 under the action of the cooling fan 54 and cooling fan 61. A heat dissipation vent 4 is located on the side of the housing assembly 1 with the opening 12. Cold air entering through the air inlet 3 undergoes heat exchange in the mounting cavity 11 and cooling duct 60, and then exits from the heat dissipation vent 4. Specifically, the mounting cavity 11 is equipped with a cooling fan 54 and a cooling duct 60. The rotation of the cooling fan 54 generates negative pressure within the mounting cavity 11, allowing cold air from the external environment of the cooking appliance to enter the mounting cavity 11 through the air inlet 3, thereby cooling the components within the mounting cavity 11. A rotatable cooling fan 61 is installed inside the cooling air duct 60. The inlet of the cooling air duct 60 is directly or indirectly connected to the mounting cavity 11. At the same time, the inlet of the cooling air duct 60 is also connected to the air inlet 3, and the outlet of the cooling air duct 60 is connected to the heat dissipation port 4. When the cooling fan 61 rotates, it can simultaneously draw in airflow from the air inlet 3 and the mounting cavity 11. The airflow drawn in by the cooling fan 61 can be discharged through the outlet of the cooling air duct 60.

[0111] In this process, under the action of the cooling fan 54 and the cooling fan 61, the cold air entering from the air inlet 3 first passes through the mounting cavity 11. The cold air cools the components in the mounting cavity 11, thereby removing some of the heat in the mounting cavity 11. This is the first heat dissipation. The airflow heated in the mounting cavity 11 enters the cooling air duct 60. At the same time, under the negative pressure generated by the rotation of the cooling fan 61, some air outside the housing assembly 1 enters the cooling air duct 60 directly or indirectly through the air inlet 3. For example, an air intake channel can be set between the cooling air duct 60 and the air inlet 3 to ensure that the cold air outside can directly enter the cooling air duct 60. In this way, the heated air drawn from the mounting cavity 11 can be cooled a second time in the cooling air duct 60 by the cold air outside. The airflow after the second heat dissipation is finally discharged to the external environment where the cooking appliance is located through the outlet and heat dissipation port 4 of the cooling air duct 60.

[0112] In this embodiment, the built-in cooking appliance, guided by the cooling fan 54, draws in external airflow to achieve a first cooling effect on the mounting cavity 11. The cooling duct 60 and the cooling fan 61 then provide a second cooling effect on the airflow within the mounting cavity 11. This creates a dual cooling structure within the mounting cavity 11, significantly reducing the temperature of the final exhaust airflow from the built-in cooking appliance, effectively improving the overall heat dissipation efficiency and long-term operational reliability. Simultaneously, the design of the heat dissipation vent 4 located on the side of the opening 12 facilitates direct exhaust of hot air from the front of the built-in cooking appliance, reducing heat accumulation around the appliance and preventing heat buildup between the appliance and the cabinet, thus protecting the cabinet. Furthermore, by setting the cooking appliance as built-in, when the appliance is an air fryer, the existing placement of air fryers is changed, reducing the countertop space occupied by the appliance and improving the overall aesthetics of the kitchen.

[0113] like Figure 5 As shown, the air inlet 3 is located on the side of the housing assembly 1 where the opening 12 is provided. This positions the air inlet 3 on the front of the housing assembly 1, ensuring that the air inlet 3 is not blocked during installation and use of the built-in cooking appliance, and ensuring smooth air intake.

[0114] Optionally, such as Figure 1 As shown, the opening 12 is located on the front side of the housing assembly 1 in the front-rear direction.

[0115] Other structures of the embedded cooking appliance can be configured in accordance with the structure of the cooking appliance in the first aspect embodiment, and will not be described in detail here.

[0116] The following example, using an air fryer, will further illustrate the cooking appliance in this embodiment.

[0117] To improve kitchen space utilization, enable rapid food cooking to reduce energy waste, and increase baking efficiency, this embodiment provides an embedded air fryer. Compared to countertop air fryers in related solutions, because it is embedded, the hot air outlet cannot be inside the cabinet, so hot air can only be emitted from the front. Since the hot air discharged from the cooking chamber is at a high temperature during operation, a cooling air duct is added to reduce the outlet air temperature.

[0118] Two-stage heat dissipation: The core is to dissipate the air first in an air-blast cooling manner, and then the exhaust gas enters the secondary cooling component 6 for another dissipation before finally being discharged from the front.

[0119] The embedded air fryer in this embodiment, such as Figure 5As shown, the air fryer consists of a secondary cooling assembly 6, a burner heating assembly (mainly including a reflector 14, a hot air assembly 2, etc.), a door frame assembly 134 (on which a control assembly is mounted), a frying bucket 8, a cavity assembly (inner liner 136), and an outer shell 13. The air fryer is installed inside a cabinet. The cavity assembly is located below the burner heating assembly and the secondary cooling assembly 6, and the control door frame assembly 134 is located in front of the cavity assembly. The frying bucket 8 is a movable part and is placed inside the cavity assembly.

[0120] like Figure 4 As shown, the secondary cooling assembly 6 consists of a second motor (second drive assembly), a top plate of the air duct (first enclosure 62), a second cooling fan (cooling fan 61), a middle plate of the air duct (air duct partition), and a bottom plate of the air duct (second enclosure 64), and is assembled on the furnace head heating assembly. The second motor is located above the top plate of the air duct; the hot air duct is located behind the top plate of the air duct; the second cooling fan is installed on the second motor and located between the top plate and the middle plate of the air duct, forming a cooling chamber; the bottom plate of the air duct is located below the middle plate of the air duct, forming a cold air chamber.

[0121] The air duct cooling system consists of: a heated fan (hot air fan 22) drawing excess heat from the cavity through the air outlet of the reflector 14 into the hot air duct (mixing element 7), where it mixes with the cold air drawn in by the first cooling fan (cooling fan 54) and is then sent into the cooling chamber (cooling air duct 60) through the hot air duct. Figure 1 As shown; the second cooling fan in the cooling chamber draws in cooling air from both the top and bottom sides, allowing it to mix thoroughly with the hot air before being discharged. The airflow path of the secondary cooling air is as follows. Figure 2 As shown, after two cooling cycles, excess heat is removed from the cooking appliance, thereby lowering the ambient temperature of the cooking appliance.

[0122] in, Figure 1 and Figure 2 Solid arrows indicate cold air drawn in from the external environment, while dashed arrows indicate hot air that has been heated within the mounting cavity 11.

[0123] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0124] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. 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.

[0125] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooking utensil, characterized in that, include: A housing assembly includes a cooking cavity and a mounting cavity, and an opening is provided on one side of the housing assembly, the opening communicating with the cooking cavity; A hot air assembly is disposed inside the cooking cavity to generate a circulating hot airflow inside the cooking cavity; An air inlet is provided on the housing assembly and communicates with the mounting cavity; A heat dissipation vent is provided on the side of the housing assembly where the opening is located; A cooling fan is rotatably disposed within the mounting cavity for drawing air from outside the housing assembly into the mounting cavity through the air inlet; A cooling air duct is disposed within the mounting cavity. The inlet of the cooling air duct is connected to the air inlet and the interior of the mounting cavity, and the outlet of the cooling air duct is connected to the heat dissipation port. A cooling fan is rotatably disposed within the cooling duct, for drawing air from the mounting cavity and the air inlet through the inlet of the cooling duct, and exhausting air through the outlet of the cooling duct.

2. The cooking utensil according to claim 1, characterized in that, Also includes: A connecting port is used to connect the cooking cavity with the mounting cavity or to connect the cooking cavity with the cooling air duct. and / or The air inlet is located on the side of the housing assembly where the opening is located.

3. The cooking utensil according to claim 1, characterized in that, Also includes: A heat dissipation duct is disposed within the mounting cavity, with its inlet connected to the mounting cavity and its outlet connected to the inlet of the cooling duct.

4. The cooking utensil according to claim 3, characterized in that, Also includes: A mixing element is disposed within the mounting cavity. The mixing element has a mixing chamber, a first inlet, a second inlet, and a first outlet communicating with the mixing chamber. The first inlet is connected to the outlet of the heat dissipation duct, the first outlet is connected to the inlet of the cooling duct, and the second inlet is connected to the cooking cavity.

5. The cooking utensil according to claim 1, characterized in that, The inlet of the cooling air duct includes: The first air inlet is located on one side of the cooling fan along its axial direction and communicates with the air inlet, and / or The second air inlet is located on the other side of the cooling fan along the axial direction and is connected to the air inlet. The third air inlet is connected to the mounting cavity.

6. The cooking utensil according to claim 5, characterized in that, Also includes: The first enclosure plate is disposed within the mounting cavity; A partition plate is disposed within the mounting cavity, forming a first flow channel with the first surrounding plate; The second enclosure plate is disposed within the mounting cavity, located on the side of the partition plate opposite to the first enclosure plate, and together with the partition plate, forms a second flow channel. The partition plate is provided with an air vent, which connects the second flow channel and the first flow channel. The first enclosure is provided with a first air inlet, which connects the first flow channel and the air inlet, and the outlet of the first flow channel is connected to the heat dissipation outlet. The second air inlet is disposed on the second enclosure or formed by the second enclosure and the middle partition. The second air inlet connects the second flow channel and the air inlet. The cooling fan is installed between the first enclosure and the second enclosure. The cooling air duct is an air duct formed by connecting the first air inlet, the second air inlet, the first flow channel, the air outlet, and the second flow channel. The third air inlet is disposed on the first enclosure or formed by the first enclosure and the middle partition, and is used to connect the first flow channel and the mounting cavity; The second drive unit is disposed in the mounting cavity, located on the side of the first enclosure away from the middle partition. A portion of the second drive unit extends from the first air inlet into the first flow channel and is connected to the cooling fan.

7. The cooking utensil according to claim 3, characterized in that, The housing assembly also includes: The outer casing has the opening on one side; A reflector is disposed inside the housing to divide the internal space of the housing into the cooking cavity and the mounting cavity. The reflector is provided with a communication port for connecting the heat dissipation duct and the cooking cavity.

8. The cooking utensil according to claim 7, characterized in that, The housing assembly also includes: A cover plate is installed in the mounting cavity, forming a heat dissipation duct with the reflector; The hot air assembly includes: A hot air fan is rotatably mounted inside the cooking cavity to drive the airflow within the cooking cavity to circulate. A heating element, disposed within the cooking cavity, is used to heat the circulating airflow to form the hot airflow. The cooking appliance further includes a first driving component, which is installed in the mounting cavity and includes a first driving shaft. The first driving shaft is connected to the cooling fan and the hot air fan to drive the cooling fan and the hot air fan to rotate.

9. The cooking utensil according to claim 7, characterized in that, The opening is located on the front side of the housing assembly, and the housing includes: A housing, wherein an opening is provided on one side of the housing, and the reflector is installed inside the housing; A door frame assembly is disposed at the opening of the housing to partially close the opening. The door frame assembly has an opening communicating with the interior of the housing. The air inlet and the heat dissipation outlet are disposed on the door frame assembly.

10. A cooking utensil, characterized in that, The cooking appliance is a built-in cooking appliance, which includes: A housing assembly includes a cooking cavity and a mounting cavity, and an opening is provided on one side of the housing assembly, the opening communicating with the cooking cavity; A hot air assembly is disposed inside the cooking cavity to generate a circulating hot airflow inside the cooking cavity; An air inlet is provided on the housing assembly and communicates with the mounting cavity; A heat dissipation vent is provided on the side of the housing assembly where the opening is located; A cooling fan is rotatably disposed within the mounting cavity for drawing air from outside the housing assembly into the mounting cavity through the air inlet; A cooling air duct is disposed within the mounting cavity. The inlet of the cooling air duct is connected to the air inlet and the interior of the mounting cavity, and the outlet of the cooling air duct is connected to the heat dissipation port. A cooling fan is rotatably disposed within the cooling duct, for drawing air from the mounting cavity and the air inlet through the inlet of the cooling duct, and exhausting air through the outlet of the cooling duct.

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