Cooking utensil with good oil smoke catalytic effect

Abstract

The utility model discloses a cooking utensil with a good oil smoke catalytic effect, belongs to the field of household appliances, solves the problem that a catalytic purification effect is poor due to the fact that a catalytic part on an existing frying and baking machine is heated slowly, and adopts the technical scheme that the cooking utensil mainly comprises a cooking cavity and a hot air assembly arranged above the cooking cavity, the hot air assembly comprises a hot air fan and a heating part, hot air generated by the hot air assembly is input into the cooking cavity to cook food materials, a catalysis part is arranged on the heating part and comprises a base body arranged on the heating part and a plurality of fins arranged on the base body, and a purification channel is formed between every two adjacent fins so as to catalyze and decompose oil fume flowing through the purification channels. The catalytic purification device is mainly used for rapidly heating the catalytic part so as to improve the catalytic purification effect.

Description

Technical Field

[0001] The utility model relates to a household appliance, in particular to a cooking appliance with good oil smoke catalysis effect. Background Art

[0002] Taking an air fryer as an example, the cooking appliance in the prior art includes a cooking cavity and a hot air component arranged above the cooking cavity, the hot air component includes a hot air fan and a heating element, the hot air component generates hot air and inputs it into the cooking cavity to cook the food. During the cooking process, the food in the cooking cavity will produce oil smoke, and the oil smoke contains a variety of substances harmful to human health. For this reason, the cooking appliance with good oil smoke catalytic effect in the prior art is also provided with a catalytic module that can catalytically decompose the oil smoke. For example, the invention patent CN110840281A and the utility model patent CN216293804U both disclose catalytic modules. The above-mentioned catalytic module mainly catalytically decomposes the oil smoke by heating, and the catalytic decomposition effect is related to the temperature. Among them, the catalytic module is heated mainly by thermal radiation or thermal convection, but the heating efficiency by thermal radiation or thermal convection is low, resulting in poor catalytic purification effect of the catalytic module on the oil smoke. Utility Model Content

[0003] The utility model aims to provide a cooking utensil with good oil fume catalysis effect, overcome the shortcomings of the prior art, and make the catalytic element heat up quickly to improve the catalytic purification effect.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cooking utensil with good oil fume catalysis effect, comprising a cooking cavity and a hot air component arranged above the cooking cavity, the hot air component comprising a hot air fan and a heating element, the hot air component generates hot air and inputs it into the cooking cavity to cook food, the heating element is provided with a catalytic element, the catalytic element comprises a base arranged on the heating element and a plurality of fins arranged on the base, a purification channel is formed between two adjacent fins to catalytically decompose the oil fume flowing through the purification channel.

[0005] After adopting the above technical scheme, the utility model has the following advantages: since the heat transfer efficiency of heat conduction is faster than that of heat radiation and heat convection, a catalytic element is provided on the heating element, and the catalytic element includes a substrate provided on the heating element and a plurality of fins provided on the substrate, so that the substrate is in direct contact with the heating element, and the heating element heats the substrate through heat conduction, and the substrate heats the fins through heat conduction, so that the catalytic element is heated quickly to improve the catalytic purification effect, and the use of a fin structure can also improve the heating uniformity of the catalytic element and improve the catalytic purification effect.

[0006] Furthermore, the surface of the substrate facing the heating element is arranged in an arc surface to form a matching surface that matches the surface of the heating element. With the above technical solution, the arc surface structure makes the substrate and the heating element compatible, which is convenient for installation and increases the heat conduction area, further enabling the catalytic element to heat up quickly, thereby improving the catalytic purification effect of the catalytic element.

[0007] Furthermore, the width of the air inlet end of the purification channel is D1, and the width of the air outlet end of the purification channel is D2, and D1>D2. The above technical solution is adopted. On the one hand, a larger width of the air inlet end of the purification channel is adopted, which is conducive to the entry of the airflow with oil smoke. On the other hand, the width of the air outlet end of the purification channel is smaller than the width of the air inlet end of the purification channel, which slows down the flow rate of the airflow with oil smoke in the purification channel, so that the airflow with oil smoke is better catalytically decomposed by the catalyst, thereby improving the purification effect.

[0008] Furthermore, the width of the purification channel gradually decreases from the air inlet end to the air outlet end. Through the above technical solution, the velocity of the airflow with oil smoke is gradually reduced, making the airflow with oil smoke flow more stable, effectively avoiding large fluctuations in the velocity, thereby avoiding large airflow noise.

[0009] Furthermore, the fins are arranged in a curved shape. According to the above technical solution, the fins are arranged in a curved shape to increase the flow path of the airflow with oil smoke in the purification channel, so that the airflow with oil smoke is better catalytically decomposed by the fins, further improving the purification effect.

[0010] Furthermore, the bottom wall of the purification channel is provided with a concave-convex structure. Through the above technical solution, the contact area between the bottom wall of the purification channel and the airflow with oil smoke is increased, and the purification effect is further improved.

[0011] Furthermore, the bottom wall of the purification channel is provided with a plurality of protrusions, and the bottom wall of the purification channel forms a concavo-convex structure; or, the bottom wall of the purification channel is provided with a plurality of grooves, and the bottom wall of the purification channel forms a concavo-convex structure; or, the bottom of the purification channel is provided with a plurality of protrusions and a plurality of grooves, and the bottom wall of the purification channel forms a concavo-convex structure. Using the above technical solution, in one embodiment, by providing a plurality of protrusions on the bottom wall of the purification channel, the contact area between the bottom wall of the purification channel and the airflow with oil smoke is increased; or, in another embodiment, by providing a plurality of grooves on the bottom wall of the purification channel, the contact area between the bottom wall of the purification channel and the airflow with oil smoke is increased; or, in another embodiment, by providing a plurality of protrusions and a plurality of grooves on the bottom of the purification channel, the contact area between the bottom wall of the purification channel and the airflow with oil smoke is further increased.

[0012] Furthermore, the side wall surface of the fin is a concave-convex structure. With the above technical solution, the side wall surface of the fin is located in the purification channel, which increases the contact area between the airflow with oil smoke and the side wall surface of the fin when passing through the purification channel, further improving the purification effect.

[0013] Furthermore, the surface of the fin is provided with a plurality of protrusions, and the surface of the fin forms a concavo-convex structure; or, the surface of the fin is provided with a plurality of grooves, and the surface of the fin forms a concavo-convex structure; or, the surface of the fin is provided with a plurality of protrusions and a plurality of grooves, and the surface of the fin forms a concavo-convex structure. Using the above technical solution, in one embodiment, by providing a plurality of protrusions on the surface of the fin, the contact area between the surface of the fin and the airflow with oil smoke is increased; or, in another embodiment, by providing a plurality of grooves on the surface of the fin, the contact area between the surface of the fin and the airflow with oil smoke is increased; or, in another embodiment, by providing a plurality of protrusions and a plurality of grooves on the surface of the fin, the contact area between the surface of the fin and the airflow with oil smoke is further increased.

[0014] Furthermore, the purification channel corresponds to the air outlet of the hot air fan. The above technical solution is adopted to facilitate the airflow blown out by the hot air fan to directly enter the purification channel, so as to better purify the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a cross-sectional view of the cooking utensil with good oil fume catalysis effect in the utility model;

[0017] Figure 2 For the utility model Figure 1 A magnified view of the local structure;

[0018] Figure 3 It is a schematic diagram of the assembly of the heating element and the catalytic element in the utility model;

[0019] Figure 4 It is a cross-sectional view of the heating element and the catalytic element in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the catalytic component in the utility model;

[0021] Figure 6 For the utility model Figure 5 Another perspective diagram of the structure in the middle;

[0022] Figure 7 It is a structural schematic diagram of a catalyst component in another embodiment of the utility model;

[0023] Figure 8For the utility model Figure 7 Another perspective diagram of the structure in the middle;

[0024] Fig. 9 It is a cross-sectional view of another embodiment of a cooking utensil with good oil smoke catalysis effect in the utility model;

[0025] Fig.10 For the utility model Fig. 9 A magnified view of the local structure;

[0026] In the figure, 11, cooking cavity; 12, reflective cover; 13, heating element; 14, hot air fan; 141, air outlet; 142, air inlet; 15, protective net; 16, catalytic element; 161, base; 162, fins; 163, purification channel; 1631, air inlet; 1632, air outlet; 1633, protrusion; 17, catalytic module. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0029] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0030] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising 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 these processes, methods, products or apparatuses.

[0031] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0032] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0033] like Figures 1 to 8 As shown, the utility model provides a cooking utensil with good oil fume catalysis effect. The cooking utensil with good oil fume catalysis effect in this embodiment takes an air fryer as an example, comprising a cooking cavity 11 and a hot air component arranged above the cooking cavity 11, the hot air component comprising a hot air fan 14 and a heating element 13, the hot air component generates hot air and inputs it into the cooking cavity 11 to cook food, a catalytic element 16 is arranged on the heating element 13, the catalytic element 16 comprises a base 161 arranged on the heating element 13 and a plurality of fins 162 arranged on the base 161, a purification channel 163 is formed between two adjacent fins 162 to catalytically decompose the oil fume flowing through the purification channel 163.

[0034] With such a design, since the heat transfer efficiency of heat conduction is faster than that of heat radiation and heat convection, a catalyst element 16 is provided on the heating element 13, and the catalyst element 16 includes a substrate 161 provided on the heating element 13 and a plurality of fins 162 provided on the substrate 161, so that the substrate 161 is in direct contact with the heating element 13, and the heating element 13 heats the substrate 161 through heat conduction, and the substrate 161 heats the fins 162 through heat conduction, so that the catalyst element 16 is heated quickly to improve the catalytic purification effect, and the use of the fin 162 structure can also improve the heating uniformity of the catalyst element 16 and improve the catalytic purification effect.

[0035] It is understandable that the cooking utensils with good oil fume catalysis effect may also be ovens and the like.

[0036] It can be understood that a reflective cover 12 is provided above the hot air component, a protective net 15 is provided between the hot air component and the cooking cavity 11, and the catalytic element 16 is located above the protective net 15. The protective net 15 filters relatively large oil fume particles in the airflow flowing into the hot air component to achieve preliminary filtration and purification of the airflow.

[0037] It should be noted that the catalyst 16 can be arranged along one side surface of the heating element 13 , and the catalyst 16 does not completely wrap the heating element 13 , so as to ensure that the heating element 13 heats the airflow blown out by the hot air fan 14 while heating the catalyst 16 .

[0038] It should be noted that there is a catalyst layer on the surface of the purification channel 163, and a catalyst substance is arranged in the catalyst layer. The catalyst substance may be one or more catalyst substances such as platinum, palladium, ruthenium, etc., which can catalyze the combustion of organic matter in the oil smoke to generate H2O and CO2.

[0039] In order to further quickly increase the temperature of the catalyst 16, the surface of the substrate 161 facing the heating element 13 is arranged in an arc surface to form a matching surface adapted to the surface of the heating element 13. With such a design, the arc surface structure enables the substrate 161 to be adapted to the heating element 13, which is convenient for installation and increases the heat conduction area, further enabling the catalyst 16 to achieve rapid temperature rise, thereby improving the catalytic purification effect of the catalyst.

[0040] The hot air fan 14 can be a centrifugal fan, which has air intake at the bottom and air outlet around it. The flow path of the airflow with oil smoke in the cooking appliance with good oil smoke catalysis effect is as follows: Figure 1 In order to further ensure that the airflow carrying oil smoke sucked from the cooking cavity 11 by the hot air fan 14 is better purified before entering the cooking cavity 11, the purification channel 163 corresponds to the air outlet end 141 of the hot air fan 14. This design facilitates the airflow blown by the hot air fan 14 to directly enter the purification channel 163, so as to better purify the airflow.

[0041] Since the catalytic decomposition of oil smoke by the catalyst 16 takes a certain amount of time, the width of the air inlet end 1631 of the purification channel 163 is D1, and the width of the air outlet end 1632 of the purification channel 163 is D2. If D1≤D2, the width of the air inlet end 1631 of the purification channel 163 may be relatively small, which is not conducive to the entry of the airflow with oil smoke, and the airflow with oil smoke has a relatively fast flow rate in the purification channel 163, and the oil smoke is discharged from the purification channel 163 before it is fully catalytically decomposed, which affects the purification effect of the oil smoke. For this reason, in the present utility model, D1>D2. With such a design, on the one hand, a larger width of the air inlet end 1631 of the purification channel 163 is adopted, which is conducive to the entry of the airflow with oil smoke. On the other hand, the width of the air outlet end 1632 of the purification channel 163 is smaller than the width of the air inlet end 1631 of the purification channel 163, which slows down the flow rate of the airflow with oil smoke in the purification channel 163, so that the airflow with oil smoke is better catalytically decomposed by the catalyst 16, thereby improving the purification effect.

[0042] And, the width of the purification channel 163 gradually decreases from the air inlet end 1631 toward the air outlet end 1632. Such a design gradually reduces the velocity of the airflow with oil smoke, makes the airflow with oil smoke flow more stable, effectively avoids large fluctuations in the flow velocity, and thus avoids emitting large airflow noise.

[0043] like Figure 7 and Figure 8 As shown, further, the fins 162 are arranged in a curved shape. Such a design increases the flow path of the airflow with oil smoke in the purification channel 163, so that the airflow with oil smoke is better catalytically decomposed by the fins 162, further improving the purification effect.

[0044] It should be noted that the fin 162 may be bent in an S-shape, but the present invention is not limited thereto.

[0045] Understandable, such as Figures 3 to 6 As shown, the fins 162 are arranged in a straight line, which has less resistance to airflow.

[0046] Since the oil fume purification effect is related to the contact area of ​​the catalyst material in the catalyst layer, in the present invention, the bottom wall of the purification channel 163 is a concave-convex structure. Such a design increases the contact area between the bottom wall of the purification channel 163 and the airflow with oil fume, further improving the purification effect.

[0047] Specifically, Figure 5 and Figure 6 As shown, in one embodiment, a plurality of protrusions are provided on the bottom wall of the purification channel 163, and a concave-convex structure is formed on the bottom wall of the purification channel 163 to increase the contact area between the bottom wall of the purification channel 163 and the airflow carrying oil smoke.

[0048] In another embodiment, a plurality of grooves are provided on the bottom wall of the purification channel, and the bottom wall of the purification channel forms a concave-convex structure to increase the contact area between the bottom wall of the purification channel and the airflow carrying oil smoke.

[0049] In another embodiment, a plurality of protrusions and a plurality of grooves are provided at the bottom of the purification channel, and a concave-convex structure is formed on the bottom wall of the purification channel, so as to further increase the contact area between the bottom wall of the purification channel and the airflow carrying oil smoke.

[0050] Furthermore, the side wall surface of the fin 162 is a concave-convex structure. Such a design increases the contact area between the airflow with oil smoke and the side wall surface of the fin 162 when passing through the purification channel 163, further improving the purification effect.

[0051] Specifically, in one embodiment, a plurality of convex points are arranged on the surface of the fin, and a concave-convex structure is formed on the surface of the fin to increase the contact area between the surface of the fin and the airflow carrying oil smoke.

[0052] In another embodiment, a plurality of grooves are disposed on the surface of the fin, and the surface of the fin 162 forms a concave-convex structure to increase the contact area between the surface of the fin and the airflow carrying oil smoke.

[0053] In another embodiment, a plurality of protrusions and a plurality of grooves are arranged on the surface of the fin, and a concave-convex structure is formed on the surface of the fin, thereby further increasing the contact area between the surface of the fin and the airflow carrying oil smoke.

[0054] It is understandable that if Figure 3 and Figure 4 As shown, the bottom wall of the purification channel 163 and the surface of the fin 162 are both planar structures, which have less resistance to airflow.

[0055] It is understandable that if Fig. 9 and Fig.10 As shown, in other embodiments of the present invention, since the oil smoke needs to pass through the protective net 15 before being purified by the catalytic element 16, some oil smoke particles will remain on the protective net 15 and the hot air fan 14, generating odor. For this reason, a catalytic module 17 is also provided on one side of the air inlet end 142 of the hot air fan 14, and the catalytic module 17 catalytically decomposes the oil smoke approaching and / or flowing through it. With such a design, the airflow carrying oil smoke sucked from the cooking cavity 11 by the hot air fan 14 first passes through the catalytic module 17 for catalytic purification, and then the airflow discharged by the hot air fan 14 passes through the catalytic element 16 for catalytic purification, forming a double purification, and the purification effect is better.

[0056] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A cooking appliance with good oil fume catalysis effect, comprising a cooking cavity and a hot air component arranged above the cooking cavity, the hot air component comprising a hot air fan and a heating element, the hot air component generates hot air and inputs it into the cooking cavity to cook food, characterized in that: The heating element is provided with a catalytic element, which includes a substrate provided on the heating element and a plurality of fins provided on the substrate, and a purification channel is formed between two adjacent fins to catalytically decompose the oil smoke flowing through the purification channel.

2. A cooking utensil with good oil fume catalysis effect according to claim 1, characterized in that: The surface of the substrate facing the heating element is arranged in an arc shape to form a matching surface matched with the surface of the heating element.

3. The cooking utensil with good oil fume catalysis effect according to claim 1, characterized in that: The width of the air inlet end of the purification channel is D1, and the width of the air outlet end of the purification channel is D2, and D1>D2.

4. The cooking utensil with good oil fume catalysis effect according to claim 3, characterized in that: The width of the purification channel gradually decreases from the air inlet end toward the air outlet end.

5. The cooking utensil with good oil fume catalysis effect according to claim 1, characterized in that: The fins are arranged in a curved shape.

6. The cooking utensil with good oil fume catalysis effect according to claim 1, characterized in that: The bottom wall of the purification channel is arranged in a concave-convex structure.

7. The cooking utensil with good oil fume catalysis effect according to claim 6, characterized in that: The bottom wall of the purification channel is provided with a plurality of protrusions, and the bottom wall of the purification channel forms a concave-convex structure; or, the bottom wall of the purification channel is provided with a plurality of grooves, and the bottom wall of the purification channel forms a concave-convex structure; or, the bottom of the purification channel is provided with a plurality of protrusions and a plurality of grooves, and the bottom wall of the purification channel forms a concave-convex structure.

8. The cooking utensil with good oil fume catalysis effect according to claim 1, characterized in that: The side wall surface of the fin is a concave-convex structure.

9. The cooking utensil with good oil fume catalysis effect according to claim 8, characterized in that: The surface of the fin is provided with a plurality of protrusions, and the surface of the fin forms a concave-convex structure; or, the surface of the fin is provided with a plurality of grooves, and the surface of the fin forms a concave-convex structure; or, the surface of the fin is provided with a plurality of protrusions and a plurality of grooves, and the surface of the fin forms a concave-convex structure.

10. The cooking utensil with good oil fume catalysis effect according to claim 1, characterized in that: The purification channel corresponds to the air outlet end of the hot air fan.

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