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 and an oxygen sensor, the shell is provided with a cooking cavity, a mounting hole is formed in the shell, the oxygen sensor penetrates through the mounting hole, the oxygen sensor comprises a detection end, and at least part of the structure of the detection end is located in the cooking cavity; the detection end comprises a shell and a detection unit, the shell covers the detection unit, and a through hole is formed in the shell; and an anti-silicon coating is coated on the outer surface of the shell. 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 the related art, in order to detect the 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 shell is provided with a mounting hole, the oxygen sensor is arranged in the mounting hole, the oxygen sensor comprises a detection end head, at least part of the structure of the detection end head is located in the cooking cavity; the detection end head comprises a detection unit and a shell with an anti-silicon coating on the surface, the shell is arranged outside the detection unit, and the shell is provided with a through hole.

[0007] In some embodiments, the anti-silicon coating has a thickness of 0.1mm-1mm.

[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 end portion of the detection unit is at least partially opposite to the inner side wall of the shell.

[0010] In some embodiments, the detection end head further comprises a positioning member, the positioning member passes through the mounting hole, and the shell is connected to one end of the positioning member towards the inside of the cooking cavity; the positioning member has a cavity, the detection unit passes through the cavity, and the end portion of the detection unit protrudes from one end of the positioning member towards the inside of the cooking cavity.

[0011] In some embodiments, the circumferential outer wall of the positioning member is provided with a positioning portion, the positioning portion protrudes from the outer wall of the positioning member, and the positioning portion abuts against the outer wall of the shell.

[0012] In some embodiments, the oxygen sensor further comprises a locking piece, an outer wall of the positioning piece is provided with threads, an inner side of the locking piece is provided with threads, and the locking piece is sleeved on the outer side of the positioning piece and is screwed with the positioning piece; the locking piece is configured to press the inner wall of the shell.

[0013] In some embodiments, the oxygen sensor further comprises a sealing ring, the sealing ring is sleeved on the outer side of the positioning piece, and the sealing ring abuts between the locking piece and the inner wall of the shell.

[0014] In some embodiments, a surface of the protective piece is coated with a nano titanium sol, so that the outer side of the anti-silicon coating forms a porous protective coating.

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

[0016] The embodiments of the present application provide a cooking appliance, which comprises 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 of the cooking appliance, but also can detect the humidity in the cavity in a high-temperature state, and the detection accuracy is high. The oxygen sensor comprises a shell and a detection unit, and an outer surface of the shell is coated with an anti-silicon coating. In this way, 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 silicosis 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 other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The structure schematic diagram of the cooking appliance provided by the embodiments of the present application is shown in the figure.

[0020] Figure 2 As Figure 1 A local enlarged structural schematic view of the I part in the middle;

[0021] Figure 3 A structural schematic view of an oxygen sensor of a cooking appliance provided by the embodiment of the present application;

[0022] Figure 4 A sectional view of an oxygen sensor of a cooking appliance provided by the embodiment of the present application.

[0023] Explanation of reference signs:

[0024] 100-cooking appliance;

[0025] 110-housing; 111-mounting hole; 120-cooking cavity;

[0026] 130-oxygen sensor; 131-detection end; 132-outer shell;

[0027] 133-detection unit; 134-positioning member; 135-cavity;

[0028] 136-positioning part; 137-locking member; 140-sealing ring;

[0029] 150-door body. DETAILED DESCRIPTION

[0030] In the working process of a cooking appliance such as a steam oven or a steam-baking integrated machine, the humidity data in the cooking cavity generally need to be detected, so as to ensure that the cooking appliance 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 accuracy is low.

[0031] To solve the above technical problems, the embodiment of the present application provides a cooking appliance including 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 the low-temperature fermentation state of the cooking appliance, but also can detect the humidity in the cavity in the high-temperature state. The oxygen sensor includes an outer shell and a detection unit. The outer surface of the outer shell is coated with a silicon-resistant coating. In this way, 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 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.

[0033] Reference Figure 1 As shown, this application embodiment provides a cooking appliance 100, which includes a shell 110 and an inner liner. The inner liner surrounds and forms a cooking cavity 120. It can be understood that the inner liner is one of the core components of the cooking appliance 100 and is used for cooking food.

[0034] 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.

[0035] A steam oven is an all-in-one appliance that combines the functions of a gas stove, steamer, and oven. Because one appliance can function as multiple independent kitchen appliances, it allows for simultaneous stir-frying / stewing on the top and steaming / baking on the bottom, freeing up kitchen space. Its principle is to use the appliance's heating system to heat water into steam, which is then used to steam, bake, or cook food.

[0036] To detect the humidity inside the cooking cavity 120 under different ambient temperatures, in this embodiment of the application, reference is made to... Figure 2 As shown, the cooking appliance 100 includes an oxygen sensor 130. The housing 110 has a mounting hole 111. During assembly, the oxygen sensor 130 passes through the mounting hole 111 to fix the oxygen sensor 130 to the housing 110.

[0037] Reference Figure 2 and Figure 3 As shown, the oxygen sensor 130 includes a detection end 131, at least part of which is located inside the cooking cavity 120. The detection end 131 includes a housing 132 and a detection unit 133. The housing 132 covers the outside of the detection unit 133 and has a through hole.

[0038] In this embodiment, the principle of detecting the steam content by the oxygen sensor 130 is mainly based on the sensitivity of the 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. The greater the concentration difference, the greater the potential difference. Specifically, in the detection process, the zirconia element can sense the oxygen partial pressure in the mixed gas, and calculate the water vapor partial pressure by the Dalton law, so as to obtain the water vapor content.

[0039] It can be understood that the shell 132 is provided with a through hole, so that the gas in the cooking cavity 120 can contact the detection end 131 through the through hole, so as to detect the humidity in the cooking cavity 120.

[0040] In the cooking appliance 100, a large number of silica gel pieces are generally provided to realize steam sealing. The silica gel pieces will emit siloxane under high temperature. The siloxane passes through the protective layer to reach the electrode surface of the oxygen sensor 130 and deposits on the surface, which causes the detection performance of the oxygen sensor 130 to decrease. The oxygen sensor 130 has a risk of failure, and the detection performance of the oxygen sensor 130 decreases.

[0041] In order to prevent the oxygen sensor 130 from being damaged and failing, in the embodiment of the present application, the outer surface of the shell 132 of the oxygen sensor 130 is coated with a silicon-resistant coating. Before the siloxane reaches the surface of the oxygen sensor 130 through the protective layer, it first reaches the silicon-resistant coating. 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 silicon poisoning of the oxygen sensor 130 in the cooking cavity 120, preventing the oxygen sensor 130 from being damaged and failing, improving the detection accuracy of the oxygen sensor 130, prolonging the service life of the oxygen sensor 130, and improving the user experience.

[0042] It should be noted that when the silicon-resistant coating is coated, the through hole on the shell 132 needs to be avoided. This is beneficial to avoid the through hole being blocked, so that the gas in the cooking cavity 120 cannot 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 shell 132, and thus the humidity in the cooking cavity 120 is detected, and the accuracy of the detection result is ensured.

[0043] In an implementable embodiment, the thickness of the silicon-resistant coating is 0.1mm-1mm.

[0044] In the embodiment of the present application, the thickness of the silicon-resistant coating is not limited. For example, the thickness of the silicon-resistant coating can be set to 0.1mm, 1mm or any value between 0.1mm and 1mm 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 silicon-resistant coating cannot effectively protect the oxygen sensor 130, 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 is prone to cracking or peeling.

[0046] Therefore, in the embodiment, the thickness of the silicon-resistant coating is limited to 0.1 mm-1 mm, so that the thickness of the silicon-resistant coating is within an appropriate range, the silicon-resistant coating can catalyze and filter siloxane in the gas entering the oxygen sensor 130, thereby providing good protection for the oxygen sensor 130, avoiding silicon poisoning of the oxygen sensor 130 in the cooking cavity 120, preventing the oxygen sensor 130 from being damaged and failing, 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 silicon-resistant coating can include at least one of a magnesium oxide coating, a calcium oxide coating, and a calcium carbonate coating.

[0048] 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 silicon-magnesium compound, so that the active silicon loses activity and avoids electrode silicon poisoning. 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 silicon-calcium compound. The embodiment is not limited in this regard.

[0049] In an implementable embodiment, the end of the detection unit 133 is at least partially opposite to the inner side wall of the shell 132. It can be understood that the end of the detection unit 133 is at least partially located on the side close to the inner side wall of the shell 132. In this way, the detection end 131 can be ensured to be in sufficient contact with the air or steam entering the shell 132, thereby realizing detection of the humidity in the cooking cavity 120 and ensuring the accuracy of the detection result.

[0050] In order to improve the installation stability of the oxygen sensor 130, in an implementable embodiment, as shown in Figure 3 and Figure 4 The detection end 131 can further include a positioning member 134, the positioning member 134 passes through the mounting hole 111, and the shell 132 is connected to one end of the positioning member 134 facing the inside of the cooking cavity 120. In this way, the positioning member 134 is assembled corresponding to the mounting hole 111, so that the oxygen sensor 130 is mounted on the shell 110, improving the installation stability of the oxygen sensor 130 and ensuring the accuracy of the detection result.

[0051] In the embodiment, as shown in Figure 4As shown, the positioning member 134 has a cavity 135, the detection unit 133 is arranged in the cavity 135, and the end of the detection unit 133 extends from the positioning member 134 to the inside of the cooking cavity 120. The cavity 135 provides a stable working environment for the detection unit 133, 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.

[0052] In an implementation, as shown in Figure 3 and Figure 4 As shown, the outer wall of the positioning member 134 can be provided with a positioning portion 136, the positioning portion 136 protrudes from the outer wall of the positioning member 134, and the positioning portion 136 abuts against the outer wall of the shell 110. For example, the positioning portion 136 can be a positioning boss.

[0053] The positioning boss abuts against the outer wall of the shell 110 to achieve precise positioning of the positioning member 134 and the shell 110. Alternatively, the outer wall of the shell 110 can also be provided with a positioning groove, and the positioning boss and the positioning groove cooperate to ensure the precise alignment and stable operation of the positioning member 134.

[0054] In an implementation, as shown in Figure 2 The oxygen sensor 130 can further include a locking member 137, wherein the outer wall of the positioning member 134 is provided with threads, and the inner side of the locking member 137 is provided with threads. This connection method is simple in structure, reliable in connection, and convenient to disassemble and assemble. At the same time, the screw connection of the internal threads and the external threads can ensure the tightness and stability of the connection, so that the two can be tightly matched to form a stable mechanical connection, which helps to improve the sealing performance, reduce external interference to the oxygen sensor 130, and improve the accuracy and precision of detection.

[0055] In the embodiment, the locking member 137 is configured to press the inner wall of the shell 110. During assembly, the locking member 137 is sleeved on the outer side of the positioning member 134 and is screwed with the positioning member 134. The locking member 137 and the positioning member 134 are clamped on the inner and outer sides of the shell 110, and the locking member 137 is locked and fixed on the inner side of the shell 110, thereby improving the installation stability of the oxygen sensor 130 and ensuring the accuracy of the detection result.

[0056] In an implementation, as shown in Figure 2 The oxygen sensor 130 can further include a sealing ring 140, the sealing ring 140 is sleeved on the outer side of the positioning member 134, and the sealing ring 140 abuts between the positioning member 134 and the inner wall of the shell 110.

[0057] In the embodiments of the present application, the material of the sealing ring 140 is not limited. For example, the material of the sealing ring 140 can generally include silicone rubber and polytetrafluoroethylene. The embodiments of the present application are not limited in this regard, and the specific material can be selected according to actual needs. The sealing ring 140 can help ensure the sealing of the cooking cavity 120 by its elasticity, corrosion resistance and high temperature resistance, can prevent steam, heat or other substances from leaking, and thus ensure the stability and safety during cooking.

[0058] In an implementable embodiment, the surface of the shell 132 can be coated with a nano-titanium sol to form a porous protective coating on the outer side of the anti-silicon coating.

[0059] In the embodiments 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, which increases the specific surface area of contact and helps to provide further protection for the anti-silicon coating to prevent the risk of wear and failure of the anti-silicon coating.

[0060] It can be understood that when the nano-titanium sol is coated, the through hole on the shell 132 also needs to be avoided, which is beneficial to avoid the through hole being blocked to cause the gas in the cooking cavity 120 to not be in good contact with the detection tip 131, thereby ensuring that the detection tip 131 is in full contact with the air or steam entering the shell 132, and thus realizing the detection of the humidity in the cooking cavity 120 and ensuring the accuracy of the detection result.

[0061] In an implementable embodiment, referring to Figure 1 As shown in the figure, the shell 110 includes a door body 150, which is arranged to be openable and closable relative to the inner container. The opening and closing mode of the door body 150 is not limited.

[0062] 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 silicone sealing member, so as to maximize the sealing of the 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 a set range, and improve the cooking effect; in addition, it can help reduce heat loss, and can also effectively prevent external liquid from penetrating into the inner container, protecting the equipment from damage.

[0063] 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 be used for measuring humidity in a cavity in a low-temperature fermentation state of the cooking utensil, and can also detect the humidity in the cavity in a high-temperature state; the oxygen sensor comprises a shell and a detection unit, and the outer surface of the shell is coated with a silicon-resistant coating, so that the silicon-resistant coating can catalyze and filter siloxane in gas entering the oxygen sensor, so that the siloxane cannot directly reach the surface of the oxygen sensor, thereby avoiding silicon poisoning of the oxygen sensor in the cooking cavity, preventing the risk of 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.

[0064] 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.

[0065] 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 alone, the existence of A and B, and the existence of B alone. 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.

[0066] 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, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore 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.

[0067] 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.

[0068] 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 oxygen sensor (130) is arranged in the mounting hole (111) of the shell (110), and the detection end head (131) is at least partially arranged in the cooking cavity (120).

2. The cooking appliance of claim 1, wherein, The anti-silicon coating has a thickness of 0.1 mm to 1 mm.

3. The cooking appliance of claim 1, wherein, The anti-silicon 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, An end portion of the detection unit (133) is at least partially opposite to an inner side wall of the shell (132).

5. The cooking appliance of claim 1, wherein, The detection end head (131) further comprises a positioning member (134) passing through the mounting hole (111), and the shell (132) is connected to one end of the positioning member (134) towards the inside of the cooking cavity (120).

6. The cooking appliance of claim 5, wherein, The positioning member (134) has a cavity (135), and the detection unit (133) passes through the cavity (135), and an end portion of the detection unit (133) protrudes from one end of the positioning member (134) towards the inside of the cooking cavity (120).

7. The cooking appliance of claim 5, wherein, The outer wall of the positioning member (134) is provided with a positioning portion (136) protruding from the outer wall of the positioning member (134), and the positioning portion (136) abuts against the outer wall of the shell (110).

8. The cooking appliance of claim 7, wherein, The oxygen sensor (130) further comprises a locking member (137), the outer wall of the positioning member (134) is provided with a thread (22), the inner side of the locking member (137) is provided with a thread, the locking member (137) is sleeved on the outer side of the positioning member (134) and is screwed with the positioning member (134), and the locking member (137) is configured to press the inner wall of the shell (110).

9. The cooking appliance of any one of claims 1-8, wherein, The oxygen sensor (130) further comprises a sealing ring (140) sleeved on the outer side of the positioning member (134), and the sealing ring (140) abuts between the positioning member (134) and the inner wall of the shell (110).

10. The cooking appliance of any one of claims 1-8, wherein, The surface of the shell (132) is coated with nano titanium sol, so that the outer side of the anti-silicon coating forms a porous protective coating. The shell (110) comprises an inner container and a door body (150), the inner container surrounds to form the cooking cavity (120), the door body (150) is arranged to be openable and closable relative to the inner container, and the circumferential edge of the door body (150) is provided with a silicone rubber sealing member.

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