Cooking utensil

Abstract

The utility model provides a cooking utensil, and relates to the technical field of kitchen appliances. The cooking utensil provided by the utility model comprises a shell, a cooling fan and a detection assembly, wherein the shell is provided with a cooking cavity; the cooling fan is arranged on the shell and located outside the cooking cavity. The detection assembly comprises an oxygen sensor and a first controller, and the oxygen sensor is electrically connected with the first controller; the oxygen sensor is connected with the shell, and at least part of the structure of the oxygen sensor is located in the cooking cavity; the first controller is arranged outside the cooking cavity, and a distance is formed between the first controller and the outer surface of the shell; the heat dissipation airflow formed by the heat dissipation fan flows through the surface of the first controller to reduce the temperature of the surface of the first controller, so that the accuracy of humidity data in the cooking cavity obtained by the detection assembly is improved.

Description

Technical Field

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

[0002] A steam oven is a cooking appliance that combines steaming and baking functions. With the increasing demand for smart technology, steam ovens are gradually incorporating adjustable and controllable humidity functions.

[0003] In related technologies, sensors are used in cooking appliances to detect humidity data within the cooking cavity. These sensors measure the humidity within the cooking cavity during low-temperature fermentation, thereby controlling the humidity within a reasonable range during cooking and preventing excessive evaporation of food moisture, which could affect its taste. The signals collected by the sensors need to be received and converted by the controller on the cooking appliance to obtain the steam content within the cooking cavity.

[0004] However, the controllers of sensors on current cooking appliances are easily affected by the high temperatures during cooking, resulting in low detection accuracy. Utility Model Content

[0005] This application provides a cooking appliance to solve the technical problem that the controller of the sensor on the current cooking appliance is easily affected by the high temperature during the cooking process, resulting in low detection accuracy.

[0006] This application provides a cooking appliance, which includes a housing, a cooling fan, and a detection component. The housing has a cooking cavity. The cooling fan is disposed on the housing and located outside the cooking cavity. The detection component includes an oxygen sensor and a first controller. The oxygen sensor is electrically connected to the first controller. The oxygen sensor is connected to the housing, and at least a portion of the structure of the oxygen sensor is located inside the cooking cavity. The first controller is disposed outside the cooking cavity and has a gap with the outer surface of the housing. The cooling airflow generated by the cooling fan flows over the surface of the first controller. Along the flow direction of the airflow, the cooling fan is located downstream of the first controller.

[0007] The cooking appliance provided in this application uses an oxygen sensor to detect the oxygen concentration in the cooking cavity and then calculates the humidity data in the cooking cavity. The oxygen sensor is separately configured with a first controller to control the oxygen sensor and receive the data detected by the oxygen sensor. The first controller is far away from the shell wall of the cooking cavity where the heat generation temperature is high, and is cooled by the airflow generated by the cooling fan to reduce the surface temperature of the first controller, thereby improving the accuracy of the humidity data in the cooking cavity obtained by the detection component.

[0008] As an optional implementation, the cooling fan has an air inlet and an air outlet, and the first controller is located beside the cooling fan and is arranged opposite to the air inlet.

[0009] With this configuration, the airflow from the cooling fan can pass through the first controller, improving the cooling efficiency of the first controller.

[0010] As an optional implementation, the cooking appliance further includes a duct housing, which is disposed outside the cooking cavity and forms an exhaust duct with the outer surface of the housing; the air outlet of the cooling fan is connected to the exhaust duct; the cooking cavity is connected to the exhaust duct to discharge steam from the cooking cavity.

[0011] The first controller is connected to the air duct housing.

[0012] With this configuration, the cooling fan can both expel steam from the exhaust duct and cool the first controller, eliminating the need for a separate fan for the first controller, thus reducing the number of components used and lowering costs.

[0013] As an optional implementation, the cooling fan, the air duct housing, and the first controller are all disposed on the top of the housing; the first controller is located on the side of the air duct housing opposite to the housing.

[0014] With this configuration, the first controller can be separated from the shell wall of the cooking cavity by the air duct housing, thereby reducing the impact of the radiant temperature of the cooking cavity on the first controller.

[0015] As an optional implementation, the first controller includes a control board, which has a gap with the outer surface of the air duct housing so that the cooling airflow generated by the cooling fan can flow through the upper and lower surfaces of the control board.

[0016] With this configuration, the airflow passing through the control board can be split vertically, while simultaneously dissipating heat from both sides of the control board, thus improving heat dissipation efficiency.

[0017] As an optional implementation, the outer surface of the duct housing is provided with a mounting post, and the control plate is connected to the end of the mounting post away from the duct housing.

[0018] This setup, using mounting posts to secure the control board, improves installation reliability without obstructing the flow of cooling air across the control board's surface.

[0019] As an optional implementation, there are multiple mounting posts, which are spaced apart on the circumferential edge of the control plate; each mounting post has a mounting hole at its top end, and the edge of the control plate has a through hole; a fastener passes through the through hole and is connected to the mounting hole to fix the control plate to the mounting post.

[0020] This configuration improves the installation stability of the control board.

[0021] As an alternative implementation, the oxygen sensor is located at the top of the housing and on the side of the air duct housing.

[0022] This setup utilizes the top space of cooking appliances, improving space efficiency.

[0023] As an optional implementation, the cooking appliance further includes a water supply assembly disposed on the top of the housing; the water supply assembly is located on the side of the air duct housing opposite to the oxygen sensor.

[0024] This design makes full use of the space on both sides of the air duct housing, and avoids the water supply components affecting the oxygen sensor.

[0025] As an optional implementation, the cooking appliance further includes a second controller configured to control the operation of the cooking appliance; the first controller is electrically connected to the second controller.

[0026] This configuration separates the main controller of the cooking appliance from the controller of the oxygen sensor, which facilitates layout and assembly while allowing for targeted heat dissipation of the oxygen sensor controller, ensuring the reliability and stability of the entire machine.

[0027] This application provides a cooking appliance, which includes a housing, a cooling fan, and a detection component. The housing has a cooking cavity. The cooling fan is disposed on the housing and located outside the cooking cavity. The detection component includes an oxygen sensor and a first controller. The oxygen sensor is electrically connected to the first controller. The oxygen sensor is connected to the housing, and at least a portion of the structure of the oxygen sensor is located inside the cooking cavity. The first controller is disposed outside the cooking cavity and has a gap with the outer surface of the housing. The cooling airflow generated by the cooling fan flows over the surface of the first controller to reduce the temperature of the first controller surface, thereby improving the accuracy of the humidity data in the cooking cavity obtained by the detection component.

[0028] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the cooking appliances provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the cooking utensil provided in the embodiments of this application;

[0031] Figure 2 for Figure 1 A partial view of position A in the middle.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 - Cooking utensils;

[0034] 110-Housing; 101-Cooking cavity; 120-Cooling fan; 121-Air inlet; 122-Air outlet; 130-Detection component; 131-Oxygen sensor; 132-First controller; 1321-Control board; 140-Air duct housing; 141-Mounting column; 150-Water supply component. Detailed Implementation

[0035] Steam ovens and steam-grill combos typically require humidity monitoring within the cooking cavity during operation to ensure suitable humidity conditions are maintained during steaming or cooking. This ensures adequate moisture content in food, resulting in optimal cooking outcomes. Furthermore, humidity monitoring allows for automatic adjustment of the cooking process, preventing cooking failures due to improper humidity and improving efficiency. Current technologies typically use sensors to measure environmental parameters within the cooking cavity. The signals collected by these sensors are received and converted by a controller on the appliance to determine the steam content. However, current sensor controllers are susceptible to high temperatures during cooking, leading to significant deviations in the calculated humidity data. Consequently, the detection accuracy is low, and the appliance cannot accurately regulate the humidity within the cooking cavity.

[0036] To address the aforementioned technical problems, this application provides a cooking appliance whose detection components include an oxygen sensor and a controller. Compared to conventional sensors, the oxygen sensor in this application can measure the humidity inside the cooking appliance not only during low-temperature fermentation but also at high temperatures, exhibiting high accuracy in detecting oxygen concentration within the cooking cavity. The oxygen sensor is equipped with an independently configured controller to receive the detected data. The controller can then calculate the humidity data of the cooking cavity from the oxygen concentration data. Furthermore, the controller utilizes airflow generated by a cooling fan to dissipate heat, reducing its surface temperature and preventing high temperatures from affecting the accuracy of the calculation. Therefore, the accuracy of the humidity data can be improved, thereby accurately controlling the environmental humidity within the cooking cavity and resulting in better cooking performance.

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] Figure 1 This is a schematic diagram of the structure of the cooking utensil provided in the embodiments of this application; Figure 2 for Figure 1 A partial view of position A in the middle.

[0039] Reference Figure 1 and Figure 2 As shown, this application embodiment provides a cooking appliance 100, which includes a housing 110 and a cooking cavity 101. The housing 110 includes an inner pot, which surrounds the cooking cavity 101. The inner pot is one of the core components of the cooking appliance 100, and food is placed in the inner pot for cooking.

[0040] In this embodiment, the type of cooking appliance 100 is not limited. For example, the cooking appliance 100 in this embodiment can be an oven, a steam oven, a steam oven combination appliance, or a steam oven-microwave combination appliance, etc. In this embodiment, a steam oven combination appliance is mainly used as an example for description.

[0041] A steam oven can integrate the functions of a gas stove, steamer, and oven. Because one appliance is equivalent to multiple kitchen appliances with independent functions, it can simultaneously stir-fry / stew on the top and steam / bake on the bottom, freeing up kitchen space. Its principle is to use the appliance's heating system to heat water into steam, and then use the high-temperature steam to steam, bake, or cook food.

[0042] To detect the humidity inside the cooking cavity 101 under different ambient temperatures, in this embodiment of the application, reference is made to... Figure 1 and Figure 2 As shown, the cooking appliance 100 includes a detection component 130, and the retrieval component can acquire humidity data in the cooking cavity 101.

[0043] The detection component 130 includes an oxygen sensor 131 and a first controller 132, with the oxygen sensor 131 electrically connected to the first controller 132. The oxygen sensor 131 is connected to the housing 110, and at least a portion of its structure is located within the cooking cavity 101. The oxygen sensor 131 can detect oxygen concentration data in the cooking cavity 101 and transmit it to the first controller 132 in the form of an electrical signal. The first controller 132 is located outside the cooking cavity 101. After receiving the data from the oxygen sensor 131, the first controller 132 can convert the oxygen concentration data into the steam content in the cooking cavity 101, thereby obtaining humidity data.

[0044] It is understandable that, since the internal chip of the oxygen sensor 131 is basically a zirconium oxide structure, it has good conductivity and a negative temperature coefficient of resistance. When the oxygen sensor 131 is heated and working, its resistance will drop significantly, resulting in higher power consumption. Consequently, the temperature of the first controller 132, which supplies power to the oxygen sensor 131 and performs signal processing, will rise significantly.

[0045] Zirconia is a ceramic material with high ionic conductivity. When exposed to oxygen environments of different concentrations, a potential difference is generated between the inside and outside of the zirconia material. This potential difference is directly proportional to the oxygen concentration; the greater the concentration difference, the greater the potential difference. Specifically, in the detection process, the zirconia element senses the partial pressure of oxygen in the mixed gas and calculates the partial pressure of water vapor using Dalton's Law, thereby obtaining the water vapor content.

[0046] Since the first controller 132 requires multiple operational amplifiers for data processing, and operational amplifiers are very sensitive to temperature, the higher the temperature, the greater the deviation. Therefore, it is necessary to ensure that the temperature at the location of the first controller 132 is relatively low to reduce the deviation of the operational amplifiers, thereby ensuring that the first controller 132 has high accuracy when converting data.

[0047] In this embodiment, there is a gap between the first controller 132 and the outer surface of the housing 110. This prevents the first controller 132 from contacting the outer wall of the cooking cavity 101, effectively reducing the temperature of the first controller 132.

[0048] The cooking appliance 100 provided in this application also includes a cooling fan 120, which is disposed on the housing 110 and located outside the cooking cavity 101. The cooling airflow generated by the cooling fan 120 can flow over the surface of the first controller 132, thereby cooling the first controller 132 and reducing its temperature.

[0049] For example, the first controller 132 can be mounted on the outside of the housing 110 by a bracket, and the cooling airflow generated by the cooling fan 120 can flow over one or more surfaces of the first controller 132, and the airflow carries away the heat of the first controller 132 when it flows over the first controller 132.

[0050] Along the direction of airflow, the cooling fan 120 is located downstream of the first controller 132. This ensures that the airflow passing through the first controller 132 is dry and prevents the first controller 132 from being damaged by water vapor or steam.

[0051] It should be noted that in the cooking appliance 100 provided in this application embodiment, the oxygen sensor 131 is separately configured with a first controller 132 to control the oxygen sensor 131 and receive the data detected by the oxygen sensor 131. The two are set separately, and the first controller 132 is far away from the shell wall of the cooking cavity 101 with a high heating temperature. It is cooled by the airflow generated by the cooling fan 120 to reduce the surface temperature of the first controller 132, thereby improving the accuracy of the humidity data in the cooking cavity 101 obtained by the detection component 130.

[0052] The specific location and installation method of the first controller 132 are described in detail below.

[0053] In one possible implementation, the cooling fan 120 has an air inlet 121 and an air outlet 122. The first controller 132 is located beside the cooling fan 120 and is arranged opposite to the air inlet 121. The airflow of the cooling fan 120 can pass through the first controller 132 to improve the heat dissipation efficiency of the first controller 132.

[0054] It is understood that both the cooling fan 120 and the first controller 132 are located on the outside of the inner liner. That is, the outside of the inner liner has an installation space for assembling the first controller 132 and the cooling fan 120. The low-temperature air outside the cooking appliance 100 enters the installation space under the action of the cooling fan 120, forming a relatively low-temperature cooling airflow. The cooling airflow first flows through the first controller 132 and then enters the cooling fan 120, and is then blown out from the air outlet 122 of the cooling fan 120. The blown airflow can finally be discharged to the outside of the installation space.

[0055] In this embodiment, the cooling fan 120 can exhaust steam from the cooking chamber 101, serving both steam exhaust and heat dissipation functions for the first controller 132. This eliminates the need for a separate fan to cool the first controller 132, reducing space requirements, minimizing component usage, and lowering costs.

[0056] In some embodiments, the cooking appliance 100 further includes a duct housing 140, which is disposed outside the cooking cavity 101 and forms an exhaust duct with the outer surface of the housing 110. The air outlet 122 of the cooling fan 120 is connected to the exhaust duct. The cooking cavity 101 is connected to the exhaust duct.

[0057] Understandably, when the cooking cavity 101 is venting steam, steam can enter the exhaust duct. The cooling fan 120 can blow airflow from the air outlet 122, and the airflow enters the exhaust duct, blowing the steam in the exhaust duct to the outside of the cooking appliance 100.

[0058] For example, the cooking chamber 101 and the exhaust duct can be connected by an exhaust pipe, allowing high-temperature steam in the cooking chamber 101 to overflow into the exhaust duct via the exhaust pipe. The air inlet of the exhaust duct is connected to the air outlet 122 of the cooling fan 120, while the air outlet of the exhaust duct faces the front panel of the cooking appliance 100. The front panel of the cooking appliance 100 may be provided with an exhaust hole, and the airflow blown into the exhaust duct by the cooling fan 120 will blow steam out from the exhaust hole to the outside of the cooking appliance 100.

[0059] In some embodiments, the first controller 132 is connected to the duct housing 140. The duct housing 140 covers the outside of the inner liner of the housing 110, and the first controller 132 is mounted on the duct housing 140, so that the duct housing 140 can serve as a mounting base, raising the mounting position of the first controller 132. In this way, the duct housing 140 increases the distance between the first controller 132 and the inner liner of the housing 110, reducing the ambient temperature of the first controller 132.

[0060] For example, the first controller 132 is located on the side of the air duct housing 140 away from the housing 110, so that the first controller 132 can be separated from the shell wall of the cooking cavity 101 by the air duct housing 140, thereby reducing the influence of the radiant temperature of the cooking cavity 101 on the first controller 132.

[0061] It should be noted that the cooling fan 120 can be a cross-flow fan. The cooling fan 120 is horizontally mounted on the housing 110. The air duct housing 140 and the first controller 132 are located on the same side of the cooling fan 120, and the first controller 132 is located above the air duct housing 140. The cooling fan 120 enters near the upper side to form an air inlet 121, and exits near the lower side to form an air outlet 122.

[0062] In some embodiments, the first controller 132 includes a control board 1321, which has a gap with the outer surface of the air duct housing 140 so that the cooling airflow generated by the cooling fan 120 can flow through the opposite side surfaces of the control board 1321.

[0063] It is understandable that electrical components, including but not limited to operational amplifiers, capacitors, and resistors, can be installed on the control board 1321 to form a control circuit. The control board 1321 is mounted on the air duct housing 140, which allows the airflow passing through the control board 1321 to be split vertically, while simultaneously dissipating heat from both sides of the control board 1321, thereby improving heat dissipation efficiency.

[0064] For example, the power supply for the power amplifier can be located on the upper surface of the control board 1321.

[0065] For example, the control board 1321 may be arranged parallel to the upper surface of the air duct housing 140. The control board 1321 may have electrical components only on its upper surface, or it may have electrical components on both its lower and upper surfaces. This application embodiment does not specifically limit this.

[0066] In some embodiments, the outer surface of the air duct housing 140 is provided with a mounting post 141, and the control board 1321 is connected to the end of the mounting post 141 away from the air duct housing 140. Fixing the control board 1321 by the mounting post 141 can improve installation reliability without obstructing the flow of heat dissipation airflow across the surface of the control board 1321.

[0067] The mounting post 141 is vertically arranged above the duct housing 140, and the control plate 1321 can be connected and fixed to the top of the mounting post 141. For example, the mounting post 141 and the duct housing 140 can be integrally formed, welded together, or connected by fasteners such as screws. This application embodiment does not specifically limit this.

[0068] For example, the cross-section of the mounting post 141 can be circular, square, or other polygonal structures. The periphery of the mounting post 141 can be provided with reinforcing ribs to improve the structural strength of the mounting post 141, thereby improving the installation reliability of the first controller 132.

[0069] In some embodiments, there may be multiple mounting posts 141, which are spaced apart along the circumferential edge of the control plate 1321. The multiple mounting posts 141 simultaneously support the control plate 1321.

[0070] The top of the mounting post 141 is provided with a mounting hole, and the edge of the control plate 1321 is provided with a through hole; a fastener is inserted through the through hole and connected to the mounting hole so that the control plate 1321 is fixed to the mounting post 141 to improve the installation stability of the control plate 1321.

[0071] For example, the mounting hole can be a threaded hole, and the fastener can be a screw or bolt, which passes through a through hole on the control plate 1321 and screws into the threaded hole on the top of the mounting post 141.

[0072] For example, the control panel 1321 can be a square panel, and there can be four mounting posts 141, which are respectively supported at the four corners of the control panel 1321.

[0073] In some embodiments, the cooling fan 120, the air duct housing 140, and the first controller 132 are all disposed on the top of the housing 110. The oxygen sensor 131 is located on the top of the housing 110 and is located beside the air duct housing 140. This utilizes the top space of the cooking appliance 100, improving space utilization.

[0074] In this embodiment, the cooking appliance 100 may further include a water supply assembly 150, which is disposed on the top of the housing 110. The water supply assembly 150 is located on the side of the air duct housing 140 opposite to the oxygen sensor 131.

[0075] Understandably, the water supply assembly 150 supplies water to the steam generator, thereby generating steam in the cooking chamber 101. The water supply assembly 150 includes a water tank, an inlet pump, and a return pump, all of which can be located on the top of the housing 110. Placing the oxygen sensor 131 on the other side of the duct housing 140 makes full use of the space on both sides of the duct housing 140 and avoids interference from the water supply assembly 150 with the oxygen sensor 131.

[0076] In some embodiments, the cooking appliance 100 may further include a second controller configured to control the operation of the cooking appliance 100. A first controller 132 is electrically connected to the second controller. The first controller 132 is the main controller of the cooking appliance 100.

[0077] It is understandable that separating the main controller of the cooking appliance 100 from the controller of the oxygen sensor 131 facilitates layout and assembly, while also allowing for targeted heat dissipation of the oxygen sensor 131 controller, ensuring the reliability and stability of the entire machine's operation.

[0078] It should be noted that, due to the large temperature and humidity variations inside the cooking cavity 101, placing the oxygen sensor 131 on the top wall of the cooking cavity 101 can better adapt to these environmental changes, ensure measurement accuracy, and also avoid affecting the normal cooking of the cooking appliance 100.

[0079] In this embodiment, the housing 110 includes a door, and the inner liner surrounds a cooking cavity 101. The door is openable and closable relative to the inner liner to open or close the cooking cavity 101. The method of opening and closing the door is not limited.

[0080] Since the cooking appliance 100 of this application has a steaming function, in order to ensure the sealing during the cooking process, the circumferential edge of the door can be provided with a silicone rubber seal, which can seal the gap between the door and the inner pot to the greatest extent, prevent steam leakage, ensure that the temperature and humidity inside the cooking cavity 101 are kept within the set range, and improve the cooking effect; in addition, it helps to reduce heat loss and can also effectively prevent external liquids from seeping into the inner pot, protecting the equipment from damage.

[0081] This application provides a cooking appliance, which includes a housing, a cooling fan, and a detection component. The housing has a cooking cavity. The cooling fan is disposed on the housing and located outside the cooking cavity. The detection component includes an oxygen sensor and a first controller. The oxygen sensor is electrically connected to the first controller. The oxygen sensor is connected to the housing, and at least a portion of the structure of the oxygen sensor is located inside the cooking cavity. The first controller is disposed outside the cooking cavity and has a gap with the outer surface of the housing. The cooling airflow generated by the cooling fan flows through the surface of the first controller to reduce the temperature of the first controller surface, thereby improving the accuracy of the humidity data in the cooking cavity obtained by the detection component.

[0082] It should be noted that, in the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0083] In the description of the embodiments of this application, the term "and / or" merely indicates a relationship describing the associated objects, meaning that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the term "at least one" indicates any combination of at least two of a plurality of options, for example, including at least one of A, B, and C, which can represent any one or more elements selected from a set including communication between A, B, and C.

[0084] In the description of the embodiments of this application, the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the term "multiple" means two or more, unless otherwise precisely specified.

[0085] In the description of the embodiments of this application, the terms "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cooking utensil, characterized in that, include: The housing (110) has a cooking cavity (101). A cooling fan (120) is disposed on the housing (110) and located outside the cooking cavity (101); The detection component (130) includes an oxygen sensor (131) and a first controller (132). The oxygen sensor (131) is electrically connected to the first controller (132). The oxygen sensor (131) is connected to the housing (110), and at least a portion of the structure of the oxygen sensor (131) is located inside the cooking cavity (101). The first controller (132) is disposed outside the cooking cavity (101) and has a gap with the outer surface of the housing (110). The cooling airflow generated by the cooling fan (120) flows through the surface of the first controller (132) along the flow direction of the airflow. The cooling fan (120) is located downstream of the first controller (132).

2. The cooking utensil according to claim 1, characterized in that, The cooling fan (120) has an air inlet (121) and an air outlet (122). The first controller (132) is located on the side of the cooling fan (120) and is arranged opposite to the air inlet (121).

3. The cooking utensil according to claim 2, characterized in that, The cooking appliance also includes a duct housing (140), which is disposed outside the cooking chamber (101) and forms an exhaust duct with the outer surface of the housing (110); the air outlet (122) of the cooling fan (120) is connected to the exhaust duct; the cooking chamber (101) is connected to the exhaust duct to discharge steam from the cooking chamber (101); The first controller (132) is connected to the air duct housing (140).

4. The cooking utensil according to claim 3, characterized in that, The cooling fan (120), the air duct housing (140) and the first controller (132) are all located on the top of the housing (110); the first controller (132) is located on the side of the air duct housing (140) away from the housing (110).

5. The cooking utensil according to claim 3, characterized in that, The first controller (132) includes a control board (1321), which has a gap with the outer surface of the air duct housing (140) so that the cooling airflow generated by the cooling fan (120) can flow through the upper and lower surfaces of the control board (1321).

6. The cooking utensil according to claim 5, characterized in that, The outer surface of the air duct housing (140) is provided with a mounting post (141), and the control plate (1321) is connected to the end of the mounting post (141) away from the air duct housing (140).

7. The cooking utensil according to claim 6, characterized in that, There are multiple mounting posts (141), which are distributed at intervals along the circumferential edge of the control plate (1321). The top of each mounting post (141) is provided with a mounting hole, and the edge of the control plate (1321) is provided with a through hole. A fastener is inserted through the through hole and is connected to the mounting hole to fix the control plate (1321) to the mounting post (141).

8. The cooking utensil according to any one of claims 3-7, characterized in that, The oxygen sensor (131) is located on the top of the housing (110) and on the side of the air duct housing (140).

9. The cooking utensil according to claim 8, characterized in that, The cooking appliance also includes a water supply assembly (150), which is disposed on the top of the housing (110); the water supply assembly (150) is located on the side of the air duct housing (140) away from the oxygen sensor (131).

10. The cooking utensil according to any one of claims 1-7, characterized in that, The cooking appliance also includes a second controller configured to control the operation of the cooking appliance; the first controller (132) is electrically connected to the second controller.

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