Cooking utensil

Abstract

The utility model provides a cooking utensil, and relates to the technical field of kitchen appliances. The cooking utensil comprises a shell, an oxygen sensor and a protection part, the shell is provided with a cooking cavity, the oxygen sensor is connected with the shell, the oxygen sensor is provided with a detection end, and at least part of the structure of the detection end is located in the cooking cavity; the protection piece is connected with the inner wall of the shell and covers the outer side of the detection end; and the surface of the protection piece is coated with an anti-silicon coating. The risk of failure caused by damage of the oxygen sensor is prevented, the detection precision of the oxygen sensor is improved, the service life of the oxygen sensor is prolonged, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a cooking appliance. BACKGROUND

[0002] The steam and oven integrated machine is a cooking appliance combining steam and oven functions. With the popularization of intelligent requirements, the steam and oven integrated machine gradually introduces adjustable and controllable humidity.

[0003] In related technologies, in order to detect humidity data in the cooking cavity, a sensor is used in the cooking appliance, which is used to measure the humidity in the cooking cavity in the low-temperature fermentation state of the cooking appliance.

[0004] However, the sensor is prone to damage and failure, and the detection accuracy is low. UTILITY MODEL CONTENT

[0005] The present application provides a cooking appliance to solve the technical problem that the current sensor is prone to damage and failure, and the detection accuracy is low.

[0006] The present application provides a cooking appliance, which comprises a shell and an oxygen sensor, the shell has a cooking cavity, the oxygen sensor is connected with the shell, the oxygen sensor has a detection end head, and the detection end head is at least partially located in the cooking cavity; the cooking appliance further comprises a protective piece with an anti-silicon coating on the surface; the protective piece is connected with the inner wall of the shell and covers the outside of the detection end head.

[0007] In some embodiments, the protective piece and the inner wall of the shell form a protective cavity, and the detection end head is located in the protective cavity; the protective piece has a mesh hole communicating the inside and the outside of the protective cavity.

[0008] In some embodiments, the anti-silicon coating comprises at least one of a magnesium oxide coating, a calcium oxide coating, and a calcium carbonate coating.

[0009] In some embodiments, the protective piece comprises a connecting part and a protective mesh; the connecting part is connected with the inner wall of the shell and surrounds the detection end head; the circumferential edge of the protective mesh is connected with the connecting part, and the protective mesh covers the outside of the detection end head.

[0010] In some embodiments, the protective mesh comprises a plurality of filter wires, the plurality of filter wires are arranged in a staggered manner and form a mesh hole, and the anti-silicon coating is coated on the surface of the filter wires.

[0011] In some embodiments, the mesh hole has a pore size of 2mm-5mm.

[0012] In some embodiments, the oxygen sensor and the protective piece are arranged on the top wall of the shell, the top wall of the shell is provided with a mounting column protruding into the cooking cavity, the connecting portion is provided with a through hole, and the mounting column is arranged in the through hole; a threaded fastener is arranged on the side of the connecting portion away from the top wall of the shell, and the surface of the mounting column is provided with threads, and the threaded fastener is screwed with the mounting column and abuts against the connecting portion.

[0013] In some embodiments, the protective mesh is a plurality of layers.

[0014] In some embodiments, the surface of the protective piece is coated with a nano titanium sol to form a porous protective coating on the outside of the anti-silicon coating.

[0015] In some embodiments, the shell includes an inner container and a door body, the inner container surrounds the cooking cavity, the door body is arranged to be openable and closable relative to the inner container, and the circumferential edge of the door body is provided with a silicone rubber seal.

[0016] The embodiments of the present application provide a cooking appliance, which includes an oxygen sensor. Compared with a conventional sensor, the oxygen sensor of the present application can not only be used to measure the humidity in the cavity in a low-temperature fermentation state, but also can detect the humidity in the cavity in a high-temperature state, and has high detection accuracy. The cooking appliance further includes a protective piece, which is arranged outside the oxygen sensor. The surface of the protective piece is coated with an anti-silicon coating. The anti-silicon coating can catalyze and filter siloxane in the gas entering the oxygen sensor, so that the siloxane cannot directly reach the surface of the oxygen sensor, thereby avoiding the risk of silicon poisoning of the oxygen sensor in the cooking cavity, preventing the oxygen sensor from being damaged and failing, improving the detection accuracy of the oxygen sensor, prolonging the service life of the oxygen sensor, and improving the user experience.

[0017] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, other technical problems solved by the cooking appliance provided by the present application, other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1Structure schematic of cooking utensil provided for an embodiment of the present application Figure 1 ;

[0020] Figure 2 Structure schematic of the protective member of the cooking utensil provided for an embodiment of the present application, which is arranged outside the oxygen sensor

[0021] Figure 3 Structure schematic of cooking utensil provided for an embodiment of the present application Figure 2 ;

[0022] Figure 4 Exploded schematic of the protective member and the oxygen sensor of the cooking utensil provided for an embodiment of the present application

[0023] Figure 5 Structure schematic of the oxygen sensor of the cooking utensil provided for an embodiment of the present application

[0024] Legend of reference signs:

[0025] 100 - cooking utensil

[0026] 110 - shell; 111 - mounting column; 120 - cooking cavity

[0027] 130 - oxygen sensor; 131 - detection end; 140 - protective member

[0028] 141 - connecting portion; 142 - protective mesh; 143 - mesh hole

[0029] 144 - through hole; 145 - threaded fastener; 150 - door body DETAILED DESCRIPTION

[0030] In the working process of a cooking utensil such as a steam oven or a steam-baking integrated machine, the humidity data in the cooking cavity generally needs to be detected, which can ensure that the cooking utensil provides appropriate humidity conditions in the cooking process, thereby ensuring the cooking effect of food. In addition, by detecting the humidity, the humidity in the cooking process can be automatically adjusted to avoid cooking failure caused by improper humidity and improve the cooking efficiency. In the related art, the humidity in the cooking cavity is generally measured by a sensor. However, the sensor is prone to damage and failure, and the detection precision is low.

[0031] To solve the above technical problems, the embodiment of the present application provides a cooking utensil, which comprises an oxygen sensor and a protective piece. Compared with a conventional sensor, the oxygen sensor of the present application can not only be used to measure the humidity in the cavity in a low-temperature fermentation state of the cooking utensil, but also can detect the humidity in the cavity in a high-temperature state, and the detection accuracy is high. The protective piece is arranged outside the oxygen sensor, and the surface of the protective piece is coated with a silicon-resistant coating. The silicon-resistant coating can catalyze and filter the siloxane in the gas entering the oxygen sensor, so that the siloxane cannot directly reach the surface of the oxygen sensor, thereby avoiding the silicon poisoning of the oxygen sensor in the cooking cavity, preventing the damage and failure of the oxygen sensor, improving the detection accuracy of the oxygen sensor, prolonging the service life of the oxygen sensor, and improving the user experience.

[0032] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar notations represent the same or similar components or components with the same or similar functions throughout. The described embodiments are part of the present application, not all of the embodiments. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0033] Referring to Figure 1 and Figure 3 , the embodiment of the present application provides a cooking utensil 100, which comprises a shell 110. The shell 110 comprises an inner container, and the inner container surrounds to form a cooking cavity 120. It can be understood that the inner container is one of the core components of the cooking utensil 100, and the inner container is used for cooking food.

[0034] In the embodiment of the present application, the type of the cooking utensil 100 is not limited. For example, the cooking utensil 100 of the present embodiment can be an oven, a steamer, a steam-oven all-in-one machine, or a steam-oven-microwave all-in-one machine, etc. In the present embodiment, the cooking utensil 100 is mainly taken as a steam-oven all-in-one machine as an example for description.

[0035] The steam-oven all-in-one machine integrates the functions of a gas stove, a steamer, and an oven, etc. Because it is equivalent to multiple kitchen household appliances with independent functions in one machine, it can realize upper frying / stewing and lower steaming / roasting at the same time, and release the kitchen space. The principle is to use the heating system of the electric appliance to heat water into steam, and use the steam to steam, roast, and cook food, etc.

[0036] In order to detect the humidity in the cooking cavity 120 under different environmental temperatures, in the embodiment of the present application, referring to Figure 2 , Figure 4 andFigure 5 As shown, the cooking utensil 100 comprises an oxygen sensor 130 connected with the shell 110.

[0037] Wherein, the connection mode of the oxygen sensor 130 with the shell 110 is not limited. For example, the shell 110 can be provided with a mounting hole, and the oxygen sensor 130 is arranged in the mounting hole to fix the oxygen sensor 130 on the shell 110.

[0038] The oxygen sensor 130 has a detection end 131, which is at least partially arranged in the cooking cavity 120. In this embodiment, the principle of the oxygen sensor 130 detecting the steam content is mainly based on the sensitivity of zirconia material. Zirconia is a ceramic material with high ionic conductivity. When exposed to different concentrations of oxygen environment, a potential difference will be generated between the inside and outside of the zirconia material. The potential difference is proportional to the oxygen concentration, and the greater the concentration difference, the greater the potential difference. Specifically, in the detection process, the zirconia element will sense the oxygen partial pressure in the mixed gas, and calculate the water vapor partial pressure through the Dalton law, so as to obtain the water vapor content.

[0039] Generally, the cooking utensil 100 will be provided with more silica gel parts in order to realize steam sealing. These silica gel parts will emit siloxane in a high temperature state, and the siloxane will pass through the protective layer to reach the electrode surface of the oxygen sensor 130 and deposit thereon, resulting in a decrease in the detection performance of the oxygen sensor 130. The oxygen sensor 130 has a risk of failure, and the detection performance of the oxygen sensor 130 is decreased.

[0040] In order to prevent the oxygen sensor 130 from being damaged and failing, in this embodiment, the protective piece 140 is arranged on the outside of the detection end 131. Figures 1 to 4 As shown, the cooking utensil 100 comprises a protective piece 140 connected with the inner wall of the shell 110.

[0041] In this embodiment, the protective piece 140 can be arranged on the outside of the detection end 131. On the one hand, the protective piece 140 can provide a stable working environment for the detection end 131, reduce external interference, and thus improve the accuracy and precision of detection. On the other hand, it can prevent external liquids from entering and protect the oxygen sensor 130 from being damaged.

[0042] It can be understood that the surface of the protective piece 140 should be smooth without burrs and sharp edges to avoid becoming a new source of danger, and at the same time, it should not affect the line of sight and normal operation as much as possible to facilitate the inspection and maintenance of the equipment.

[0043] In the embodiment, the surface of the protection piece 140 is coated with a silicon-resistant coating. In this way, when the siloxane reaches the surface of the oxygen sensor 130, it first reaches the silicon-resistant coating, and the silicon-resistant coating catalyzes and filters the siloxane, so that the siloxane cannot directly reach the surface of the oxygen sensor 130, thereby avoiding the risk of siloxane poisoning of the oxygen sensor 130 in the cooking cavity 120, preventing damage to the oxygen sensor 130, improving the detection accuracy of the oxygen sensor 130, prolonging the service life of the oxygen sensor 130, and improving the user experience.

[0044] The thickness of the silicon-resistant coating is not limited, and for example, the thickness of the silicon-resistant coating can be set to 0.1 mm, 1 mm, or any value between 0.1 mm and 1 mm as needed, which is not limited in the embodiment.

[0045] If the thickness of the silicon-resistant coating is less than 0.1 mm, the oxygen sensor 130 cannot be well protected, and the oxygen sensor 130 is prone to damage and failure. If the thickness of the silicon-resistant coating is greater than 1 mm, the silicon-resistant coating may crack or peel off.

[0046] Therefore, the thickness of the silicon-resistant coating is limited to 0.1 mm to 1 mm in the embodiment, so that the thickness of the silicon-resistant coating is within a suitable range, the silicon-resistant coating can catalyze and filter the siloxane in the gas entering the oxygen sensor 130, thereby providing good protection for the oxygen sensor 130, avoiding the risk of siloxane poisoning of the oxygen sensor 130 in the cooking cavity 120, preventing damage to the oxygen sensor 130, improving the detection accuracy of the oxygen sensor 130, prolonging the service life of the oxygen sensor 130, and improving the user experience.

[0047] In an implementable embodiment, the protection piece 140 and the inner wall of the shell 110 form a protection cavity, and the detection end 131 is located in the protection cavity. The protection piece 140 has a mesh hole 143 that communicates the inside and outside of the protection cavity.

[0048] The protection cavity provides a stable working environment for the detection end 131, reduces external interference, and improves the accuracy and precision of detection. In addition, it can prevent external liquids from entering and protect the oxygen sensor 130 from damage.

[0049] It should be noted that the protection piece 140 has a mesh hole 143, and the silicon-resistant coating needs to avoid the mesh hole 143 on the protection piece 140 when being coated. This is beneficial to avoid the mesh hole 143 being blocked, so that the gas in the cooking cavity 120 cannot be well contacted with the detection end 131, thereby ensuring that the detection end 131 is fully contacted with the air or steam entering the protection cavity, and the humidity in the cooking cavity 120 is detected, and the accuracy of the detection result is ensured.

[0050] The shape, number, size and arrangement of the mesh holes 143 are not limited further, and can be set according to actual needs.

[0051] In an implementable embodiment, the silicon-resistant coating can include at least one of a magnesium oxide coating, a calcium oxide coating, and a calcium carbonate coating.

[0052] For example, the silicon-resistant coating can be a magnesium oxide coating, which can convert active silicon in the gas into silicon oxide or a magnesium-silicon compound, so that the active silicon loses activity and avoids poisoning of the electrode silicon. Alternatively, the silicon-resistant coating can be a calcium oxide coating or a calcium carbonate coating, which can convert active silicon in the gas into silicon oxide or a calcium-silicon compound. The present embodiment is not limited in this regard.

[0053] To improve the installation stability of the protective member 140, in an implementable embodiment, the protective member 140 can include a connecting portion 141 and a protective mesh 142, as shown in FIGS. 1 and 2. Figure 2 and Figure 4 The connecting portion 141 is connected to the inner wall of the housing 110 and surrounds the detection tip 131. The circumferential edge of the protective mesh 142 is connected to the connecting portion 141, and the protective mesh 142 covers the outside of the detection tip 131.

[0054] In the present embodiment, the connecting manner of the connecting portion 141 and the inner wall of the housing 110 is not limited. For example, the connecting portion 141 can be bonded to the inner wall of the housing 110, or the connecting portion 141 and the inner wall of the housing 110 can be connected by clamping, screwing or the like. The present embodiment is not limited in this regard.

[0055] For example, the connecting portion 141 can be a ring-shaped connecting platform. The connecting portion 141 is connected to the inner wall of the housing 110, which helps to increase the connection area with the inner wall of the housing 110, thereby enhancing the connection stability of the protective member 140 and the housing 110 and improving the protection effect on the detection tip 131.

[0056] In the present embodiment, the connecting manner of the protective mesh 142 and the connecting portion 141 is not limited. For example, the protective mesh 142 and the connecting portion 141 can be bonded, or the protective mesh 142 and the connecting portion 141 can be connected by clamping, screwing or the like, or the protective mesh 142 and the connecting portion 141 can be an integral piece. The present embodiment is not limited in this regard.

[0057] The design of the protective net 142 allows gas to pass through it, ensuring that the detection end 131 is in full contact with the air or steam entering the outer shell, thereby enabling the detection of humidity inside the cooking cavity 120 and ensuring the accuracy of the detection results. On the other hand, it also helps to reduce the need for separate openings on the protective part 140, simplifying the manufacturing process of the protective part 140, reducing manufacturing difficulty, and improving the user experience.

[0058] In one feasible implementation, refer to Figure 2 and Figure 4 As shown, the protective net 142 may include multiple filter wires, which are arranged in an interlaced manner to form a mesh 143, and an anti-silicone coating is applied to the surface of the filter wires.

[0059] In this embodiment, the multiple filter filaments are arranged in an interlaced manner, which can significantly enhance the mechanical strength and pressure resistance of the protective net 142, and improve the wear resistance and heat resistance of the protective net 142; at the same time, it can not only improve the uniformity and stability of gas passage, but also improve the uniformity and stability of the anti-silicone coating.

[0060] In one feasible implementation, the aperture size of the mesh 143 can be 2mm-5mm.

[0061] In this embodiment, the aperture of mesh 143 is not limited. For example, the aperture of mesh 143 can be set to 2mm, 3mm, 4mm, 5mm or any value between 2mm and 5mm as needed, and this embodiment does not limit it.

[0062] If the aperture of mesh 143 is less than 2mm, mesh 143 is prone to clogging, which prevents the gas in the cooking cavity 120 from making good contact with the detection end 131, resulting in a decrease in detection efficiency. If the aperture of mesh 143 is greater than 5mm, the number of filter wires is reduced, which reduces the area of ​​the anti-silicone coating on the surface of the filter wires. This reduces the anti-silicone coating's ability to catalyze and filter siloxanes, and some siloxanes may directly reach the surface of the oxygen sensor 130, increasing the risk of damage to the oxygen sensor 130 and causing it to fail, thus reducing detection accuracy.

[0063] Therefore, this embodiment limits the aperture size of the mesh 143 to 2mm-5mm, ensuring that the size of the mesh 143 is within a suitable range. This helps to avoid problems such as clogging of the mesh 143 and insufficient contact between the gas and the detection end 131, which could lead to a decrease in detection efficiency. Simultaneously, this ensures that the area of ​​the anti-silicone coating on the surface of the filter wire is within a suitable range, enabling the catalysis and filtration of siloxanes in the gas entering the oxygen sensor 130. This provides good protection for the oxygen sensor 130, preventing silicon poisoning within the cooking cavity 120, reducing the risk of damage and failure, improving the detection accuracy of the oxygen sensor 130, extending its service life, and enhancing the user experience.

[0064] In one feasible implementation, refer to Figure 1 and Figure 3 As shown, both the oxygen sensor 130 and the protective element 140 can be mounted on the top wall of the housing 110. Since the temperature and humidity inside the cooking cavity 120 vary considerably, placing the oxygen sensor 130 on the top wall allows for better adaptation to these environmental changes, ensuring measurement accuracy and minimizing disruption to the normal cooking operation of the cooking appliance 100.

[0065] To improve the installation stability of the protective component 140 and the housing 110, in this embodiment of the application, reference is made to... Figure 4 As shown, the top wall of the housing 110 may be provided with a mounting post 111, which protrudes into the cooking cavity 120. The connecting part 141 may be provided with a through hole 144, through which the mounting post 111 passes. A threaded fastener 145 is provided on the side of the connecting part 141 away from the top wall of the housing 110. The surface of the mounting post 111 is provided with threads, and the threaded fastener 145 is screwed onto the mounting post 111 and abuts against the connecting part 141.

[0066] In this embodiment, the mounting post 111 can be integrally formed with the top wall of the housing 110, which helps to enhance structural stability. Furthermore, the number of mounting posts 111 and through holes 144 is not limited and can be set according to actual needs. For example, the threaded fastener 145 can be a nut.

[0067] The threaded fastener 145 is screwed onto the mounting post 111 and abuts against the connecting part 141, so that the protective part 140 is installed on the housing 110, thereby improving the installation stability of the protective part 140, and thus improving the protection effect on the oxygen sensor 130 and ensuring the accuracy of the test results.

[0068] In an implementable embodiment, the protective net 142 can be multiple, and the multiple protective nets 142 are stacked. Wherein, the number of protective nets 142 is not limited, and can be arranged according to actual needs. Wherein, the stacked protective nets 142 can significantly improve the structural strength of the protective piece 140, thereby helping to prolong the service life of the protective piece 140.

[0069] In an implementable embodiment, the surface of the protective piece 140 can be coated with a nano-titanium sol to form a porous protective coating on the outer side of the anti-silicon coating.

[0070] In the embodiment of the present application, the nano-titanium sol is mainly coated on the outer side of the anti-silicon coating. For example, the nano-titanium sol is uniformly coated on the surface of the anti-silicon coating and sintered at high temperature to form a porous protective coating, increase the specific surface area of contact, and help to provide further protection for the anti-silicon coating to prevent the anti-silicon coating from failing due to wear and tear.

[0071] It can be understood that when the nano-titanium sol is coated, the mesh hole 143 on the protective piece 140 also needs to be avoided, which is beneficial to avoid the mesh hole 143 being blocked to cause the gas in the cooking cavity 120 to not be in good contact with the detection end 131, thereby ensuring that the detection end 131 is in full contact with the air or steam entering the protective piece 140, and thus realizing the detection of the humidity in the cooking cavity 120, and ensuring the accuracy of the detection result.

[0072] In an implementable embodiment, referring to Figure 1 and Figure 3 As shown, the shell 110 includes a door body 150, and the inner container is surrounded to form a cooking cavity 120. Wherein, the opening and closing mode of the door body 150 is not limited.

[0073] Wherein, since the cooking appliance 100 of the present application has a steaming function, in order to ensure the sealing during cooking, the circumferential edge of the door body 150 can be provided with a silicon rubber sealing piece, so as to maximize the sealing gap between the door body 150 and the inner container, prevent steam leakage, ensure that the temperature and humidity inside the cooking cavity 120 are maintained within the set range, improve the cooking effect; in addition, it can help to reduce heat loss, and can also effectively prevent external liquid from penetrating into the inner container, protecting the equipment from damage.

[0074] The embodiment of the present application provides a cooking utensil, which comprises an oxygen sensor, compared with a conventional sensor, the oxygen sensor of the present application can not only be used for measuring the humidity in the cavity in the low-temperature fermentation state of the cooking utensil, but also can detect the humidity in the cavity in the high-temperature state, and the detection precision is high; the cooking utensil further comprises a protective piece, the protective piece is arranged on the outside of the oxygen sensor, the surface of the protective piece is coated with a silicon-resistant coating, the silicon-resistant coating can catalyze and filter the siloxane in the gas entering the oxygen sensor, so that the siloxane cannot directly reach the surface of the oxygen sensor, thereby avoiding the silicon poisoning of the oxygen sensor in the cooking cavity, preventing the damage of the oxygen sensor and the risk of failure, improving the detection precision of the oxygen sensor, prolonging the service life of the oxygen sensor, and improving the user experience.

[0075] It should be noted that, in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0076] In the description of the embodiments of the present application, the term "and / or" only represents an association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the existence of A, the existence of A and B, and the existence of B. In addition, the term "at least one" means any combination of any one or at least two of the plurality, for example, including at least one of A, B, and C, which can represent any one or more elements selected from the set of A, B and C.

[0077] In the description of the embodiments of the present application, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the meaning of the term "a plurality of" is two or more, unless otherwise specified.

[0078] In the description of the embodiments of the present application, the terms "first", "second", "third", "fourth" and the like (if any) are used to distinguish similar objects, and do not necessarily have to be described in a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0079] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cooking appliance characterized by, The cooking utensil comprises a shell (110) having a cooking cavity (120) and an oxygen sensor (130) connected with the shell (110), wherein the oxygen sensor (130) has a detection end head (131) located at least partially in the cooking cavity (120); The cooking utensil further comprises a protective member (140) having a surface formed with a silicon-resistant coating; The protective member (140) is connected with an inner wall of the shell (110) and covers an outer side of the detection end head (131).

2. The cooking appliance of claim 1, wherein, The protective member (140) has a mesh cover structure and is connected with the inner wall of the shell (110) to form a protective cavity, wherein the detection end head (131) is located in the protective cavity; and the protective member (140) has mesh holes (143) communicating an inner side and an outer side of the protective cavity.

3. The cooking appliance of claim 1, wherein, The silicon-resistant coating comprises at least one of a magnesium oxide coating, a calcium oxide coating and a calcium carbonate coating.

4. The cooking appliance of claim 1, wherein, The protective member (140) comprises a connecting portion (141) and a protective mesh (142), wherein the connecting portion (141) is connected with the inner wall of the shell (110) and surrounds the detection end head (131); and a circumferential edge of the protective mesh (142) is connected with the connecting portion (141), and the protective mesh (142) covers the outer side of the detection end head (131).

5. The cooking appliance of claim 4, wherein, The protective mesh (142) comprises a plurality of filter wires, and the plurality of filter wires are arranged alternately and form the mesh holes (143); and the silicon-resistant coating is coated on surfaces of the filter wires.

6. The cooking appliance of claim 5, wherein, The mesh holes (143) have a pore size of 2 mm-5 mm.

7. The cooking appliance of claim 4, wherein, The oxygen sensor (130) and the protective member (140) are arranged on a top wall of the shell (110), the top wall of the shell (110) is provided with a mounting column (111) protruding into the cooking cavity (120), the connecting portion (141) is provided with a through hole (144), and the mounting column (111) is arranged in the through hole (144); a threaded fastener (145) is arranged on a side of the connecting portion (141) away from the top wall of the shell (110), a surface of the mounting column (111) is provided with a thread, and the threaded fastener (145) is screwed with the mounting column (111) and abuts against the connecting portion (141).

8. The cooking appliance of claim 4, wherein, The protective mesh (142) is in a plurality, and the plurality of protective meshes (142) are arranged in layers.

9. The cooking appliance of any one of claims 1-8, wherein, A surface of the protective member (140) is coated with a nano-titanium sol to form a porous protective coating on an outer side of the silicon-resistant coating.

10. The cooking appliance of any one of claims 1-8, wherein, The shell (110) comprises an inner container and a door body (150), the inner container forms the cooking cavity (120), the door body (150) is arranged to be openable and closable relative to the inner container, and a circumferential edge of the door body (150) is provided with a silicon rubber sealing member.

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