Cooking utensil
By placing the catalytic module in the conical cavity of the centrifugal fan return port of the protective net assembly in the cooking utensil, and using multiple through holes and filters, the problem of catalytic decomposition of the oil fume is solved, which significantly improves the cooking utensil Purification effect and sanitation of the cooking environment.
Patent Information
- Application Number
- CN202323549927.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The catalytic modules in existing cooking utensils are far away from the food, which causes the oil smoke to be catalyzed and decomposed in time, causing the problem of odor residue.
The catalytic module is arranged in the conical cavity of the centrifugal fan return port of the protective net assembly, so that the return air flow is first purified by the catalytic module, and then flows to the centrifugal fan and heating parts, and further enhances through multiple through holes and filters in the conical cavity. The purge effect is made and the catalytic module is fixed by the pressing member to ensure its stability.
It effectively reduces the pollution of oil fume in the hot air chamber, improves the hygiene of the cooking environment and the taste of ingredients, and improves the purification effect of oil fume and cooking efficiency.
Smart Images
Figure CN222129979U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a household appliance, in particular to a cooking utensil. Background Art
[0002] The cooking appliance in the prior art takes an air fryer as an example, which includes a shell with a cooking cavity, a hot air cavity is provided on the top of the cooking cavity, a hot air component and a catalytic module are provided in the hot air cavity, the hot air component includes a heating element and a centrifugal fan, a protective net is provided between the hot air cavity and the cooking cavity, 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 generate oil smoke, and the oil smoke contains a variety of substances harmful to human health, for this reason, the cooking appliance in the prior art is also provided with a catalytic module capable of catalytically decomposing the oil smoke, such as the attached patent of invention CN110840281A Figure 1 The description of paragraph 0028 discloses a cooking appliance, wherein the catalytic module is arranged adjacent to the heating tube, and the path of the oil fume purification is as shown in the attached Figure 1 As shown by the middle arrow, the oil smoke passes through the wire mesh, fan, and heating tube in sequence and then enters the catalytic module to be catalytically decomposed by the catalytic module. The catalytic module is far away from the food, and the oil smoke cannot be catalyzed in time. The oil smoke will remain on the wire mesh, fan, and heating tube, producing odor. Utility Model Content
[0003] The purpose to be achieved by the utility model is to provide a cooking utensil, which overcomes the shortcomings of the prior art, quickly catalyzes and purifies the oil smoke generated during the cooking process, and reduces the residual odor.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cooking utensil, comprising a shell with a cooking cavity, a hot air cavity is provided on the top of the cooking cavity, a hot air component and a catalytic module are provided in the hot air cavity, the hot air component comprises a heating element and a centrifugal fan, a protective net component is provided between the hot air cavity and the cooking cavity, the hot air component generates hot air which is input into the cooking cavity to cook the food, the catalytic module is used for catalytically decomposing the oil smoke approaching and / or flowing through it, the protective net component is provided with a conical cavity corresponding to the return air outlet of the centrifugal fan, the conical cavity is used for fixing the catalytic module so that the hot air refluxed by the centrifugal fan flows through the catalytic module.
[0005] After adopting the above technical scheme, the utility model has the following advantages: the catalytic module is arranged in the conical cavity of the protective net assembly corresponding to the centrifugal fan return air outlet, so that the airflow returning to the centrifugal fan in the cooking cavity is more purified by the catalytic module first, and then flows to the centrifugal fan and the heating element, thereby reducing the pollution caused by oil smoke entering the hot air cavity and the inside of the hot air cavity, which is beneficial to ensuring the environmental sanitation inside the hot air cavity, reducing the residual odor in the hot air cavity, and improving the taste and hygiene of cooking ingredients.
[0006] Furthermore, the protective net assembly includes a protective net and a bracket arranged on the protective net, the bracket defines a conical cavity with upper and lower openings, and the catalytic module is fixed in the conical cavity. Through the above technical solution, the oil smoke is purified by the catalytic module as much as possible before flowing to the centrifugal fan, thereby improving the purification effect.
[0007] Furthermore, the side wall of the conical cavity is provided with a plurality of through holes along the circumference of the catalytic module. Through the above technical solution, when the centrifugal fan draws the wind back in the cooking cavity, the wind speed in the circumference of the catalytic module is greater than the wind speed in the catalytic module because the bracket is provided with a plurality of through holes in the circumference, that is, the flow rate of the oil fume in the catalytic module is reduced, so that the oil fume can be fully contacted and purified in the catalytic module, the oil fume purification effect is improved, and the miniaturization of the catalytic module is also conducive to increasing the air intake of the centrifugal fan, so that enough wind energy can be heated by the heating element and input into the cooking cavity to ensure cooking efficiency.
[0008] Furthermore, the through hole is covered with a filter. Through the above technical solution, the airflow passing through the through hole can be filtered to intercept large particles of oil smoke and reduce the oil smoke entering the hot air chamber.
[0009] Furthermore, the bottom edge of the conical cavity is provided with an inwardly recessed step portion, and the lower end of the catalytic module is mounted on the step portion. With the above technical solution, the bottom edge of the conical cavity is provided with an inwardly recessed step portion, which can form a reliable positioning for the catalytic module and facilitate the assembly and replacement of the catalytic module.
[0010] Furthermore, a pressing piece is provided above the catalytic module, and the catalytic module is clamped between the pressing piece and the bracket. With the above technical solution, the catalytic module is clamped between the pressing piece and the bracket, which improves the reliability of the catalytic module fixation and prevents the catalytic module from falling off from the conical cavity.
[0011] Furthermore, the clamping member includes a connecting section whose two ends are connected and fixed to the bracket, and a first clamping section and a second clamping section arranged between the two ends of the connecting section, wherein the first clamping section is in a tortuous shape and is pressed against the upper end face of the catalytic module, and the second clamping section extends along the axial direction of the catalytic module and is pressed against the outer periphery of the catalytic module. With the above technical solution, the first clamping section is in a tortuous shape and is pressed against the upper end face of the catalytic module, thereby increasing the clamping range of the catalytic module and improving the reliability of the longitudinal fixation of the catalytic module, and the second clamping section extends along the axial direction of the catalytic module and is pressed against the outer periphery of the catalytic module, thereby also fixing the catalytic module in the transverse direction.
[0012] Furthermore, the catalytic module is arranged below the heating element, and the projection of the catalytic module on the horizontal plane is located within the projection range of the heating element on the horizontal plane. By adopting the above technical solution, the projection of the catalytic module on the horizontal plane is located within the projection range of the heating element on the horizontal plane, so that the heating element can cover the entire catalytic module, ensuring that the catalytic module can be heated well.
[0013] Furthermore, the catalytic module is arranged below the centrifugal fan, and the projection of the catalytic module on the horizontal plane is located within the projection range of the centrifugal fan on the horizontal plane. Through the above technical solution, the catalytic module is located on the air inlet side of the centrifugal fan, which can ensure that the hot air carrying oil smoke sucked from the cooking cavity by the centrifugal fan is catalytically purified by the catalytic module.
[0014] Furthermore, the central axis of the catalytic module coincides with the central axis of the centrifugal fan. The above technical solution is conducive to allowing the hot air carrying oil smoke sucked from the cooking cavity by the centrifugal fan to directly pass through the catalytic module for catalytic purification, thereby improving the catalytic effect. 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 in the utility model;
[0017] Figure 2 A cross-sectional view of the cooking utensil of the present invention from another perspective;
[0018] Figure 3 For the utility model Figure 2 A magnified view of the structure at A;
[0019] Figure 4 It is a schematic diagram of the structure of a bracket provided with a through hole in the utility model;
[0020] Figure 5 It is a structural schematic diagram of another perspective of the bracket provided with a through hole in the utility model;
[0021] Figure 6 It is a cross-sectional view of a bracket provided with a through hole in the utility model;
[0022] Figure 7 This is a schematic diagram of the structure in which the catalytic module in the utility model is installed on the protective net assembly;
[0023] Figure 8 For the utility model Figure 7 A magnified view of the structure at B;
[0024] Fig. 9 It is a structural schematic diagram of another perspective of the catalytic module installed in the protective net assembly in the utility model;
[0025] Fig.10 It is a cross-sectional view of the catalytic module in the utility model installed on the protective net assembly;
[0026] Fig.11 This is a schematic structural diagram of a bracket in another embodiment of the present invention;
[0027] Fig.12 It is a structural schematic diagram of another embodiment of the present invention from another perspective of a bracket;
[0028] Fig.13 A cross-sectional view of a bracket according to another embodiment of the present invention;
[0029] Fig.14 This is a structural schematic diagram of another embodiment of the present invention in which a catalytic module is installed on a protective net assembly;
[0030] Fig.15 It is a structural schematic diagram of another embodiment of the utility model in which a catalytic module is installed on a protective net assembly from another viewing angle;
[0031] Fig.16 A cross-sectional view of a catalytic module installed on a protective net assembly in another embodiment of the present invention;
[0032] In the figure, 1, shell; 11, cooking cavity; 12, hot air cavity; 13, heating element; 14, centrifugal fan; 15, protective net; 151, mounting hole; 152, return air hole; 153, air outlet hole; 16, catalytic module; 161, ventilation slot; 17, bracket; 171, conical cavity; 172, through hole; 173, step portion; 18, pressing piece; 181, first pressing section; 182, second pressing section; 19, first filter; 20, second filter. DETAILED DESCRIPTION
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] like Figures 1 to 10 As shown, the utility model provides a cooking utensil. The cooking utensil of this embodiment takes an air fryer as an example, comprising a shell 1 with a cooking cavity 11. A hot air cavity 12 is provided on the top of the cooking cavity 11. A hot air component and a catalytic module 16 are provided in the hot air cavity 12. The hot air component comprises a heating element 13 and a centrifugal fan 14. A protective net assembly is provided between the hot air cavity 12 and the cooking cavity 11. The hot air component generates hot air which is input into the cooking cavity 11 to cook food. The catalytic module 16 is used for catalytically decomposing oil smoke approaching and / or flowing through it. The protective net assembly is provided with a conical cavity 171 corresponding to the return air outlet of the centrifugal fan 14. The conical cavity is used to fix the catalytic module 16 so that the hot air refluxed by the centrifugal fan 14 flows through the catalytic module 16.
[0040] With such a design, the catalytic module 16 is arranged in the conical cavity 171 of the return air outlet of the centrifugal fan 14 of the protective net assembly, so that the airflow in the cooking cavity 11 that flows back to the centrifugal fan 14 is more likely to be purified by the catalytic module 16 first, and then flow to the centrifugal fan 14 and the heating element 13, thereby reducing the pollution caused by oil smoke entering the hot air cavity 12 and the inside of the hot air cavity 12, which is beneficial to ensuring the environmental sanitation inside the hot air cavity 12, thereby reducing the residual odor in the hot air cavity 12, improving the taste and hygiene of the cooked food, and also increasing the cleaning frequency of users in the later stage, thereby improving the user experience.
[0041] It is understandable that the cooking appliance may also be an oven or the like.
[0042] It can be understood that the heating element 13 can be a heating tube, a heating plate, etc.
[0043] It should be noted that the catalytic module 16 can be cylindrical or square, and is not limited thereto. The catalytic module 16 includes ventilation slots 161 connected up and down, and a catalyst layer is provided on the surface of the ventilation slots 161. The catalyst layer is provided with a catalyst material, and the catalyst material can be one or more catalyst materials such as platinum, palladium, and ruthenium, which can catalytically burn organic matter in oil smoke to generate H2O and CO2.
[0044] Since the catalytic effect of the catalytic module 16 is related to the temperature, the higher the temperature, the better the catalytic effect of the catalytic module 16. Therefore, the catalytic module 16 is arranged below the heating element 13, and the projection of the catalytic module 16 on the horizontal plane is located within the projection range of the heating element 13 on the horizontal plane. With such a design, the heating element 13 can cover the entire catalytic module 16, ensuring that the catalytic module 16 can be heated well.
[0045] The protective net assembly includes a protective net 15 and a bracket 17 disposed on the protective net 15. The bracket 17 defines a conical cavity 171 with upper and lower openings, and the catalytic module 16 is fixed in the conical cavity 171. Through the above technical solution, the oil smoke is purified by the catalytic module 16 as much as possible before flowing to the centrifugal fan 14, thereby improving the purification effect.
[0046] It is understandable that the protection net 15 and the bracket 17 can be integrally formed, or can be detachably connected, or the protection net and the bracket can be connected via a fixing member.
[0047] The centrifugal fan 14 has air intake at the bottom and air outlet at the periphery. The bottom wall of the protective net 15 is provided with an air return hole 152, and the side wall of the protective net is provided with an air outlet hole 153. The flow path of the hot air carrying the oil smoke in the cooking appliance is as follows: Figure 1In order to further ensure that the hot air carrying oil smoke sucked from the cooking cavity 11 by the centrifugal fan 14 is better purified before entering the hot air cavity 12, the catalytic module 16 is arranged below the centrifugal fan 14, and the projection of the catalytic module 16 on the horizontal plane is located within the projection range of the centrifugal fan 14 on the horizontal plane. With such a design, the catalytic module 16 is located on the air inlet side of the centrifugal fan 14, which can ensure that the hot air carrying oil smoke sucked from the cooking cavity 11 by the centrifugal fan 14 is catalytically purified by the catalytic module 16.
[0048] Preferably, the central axis of the catalytic module 16 coincides with the central axis of the centrifugal fan 14. Such a design is conducive to allowing the hot air carrying oil smoke sucked from the cooking cavity 11 by the centrifugal fan 14 to directly pass through the catalytic module 16 for catalytic purification, thereby improving the catalytic effect.
[0049] In order to realize the installation of the catalytic module 16 on the protective net 15, the catalytic module 16 is installed on the protective net 15 through the bracket 17. The bracket 17 has a conical cavity 171 with upper and lower openings, and the catalytic module 16 is arranged in the conical cavity 171. With this design, the oil smoke is purified by the catalytic module 16 as much as possible before flowing to the centrifugal fan 14, thereby improving the purification effect.
[0050] A mounting hole 151 for mounting the bracket 17 is provided on the bottom wall of the protection net 15 , and the bracket 17 is fixed in the mounting hole 151 of the mounting bracket 17 by snapping.
[0051] It is understandable that the bracket 17 can also be installed on the protective net 15 by screws. And it is not limited to this.
[0052] In order to achieve a more reliable installation of the catalytic module 16 on the protective net 15, a pressing piece 18 is provided above the catalytic module 16, and the catalytic module 16 is clamped between the pressing piece 18 and the bracket 17. With this design, the catalytic module 16 is clamped between the pressing piece 18 and the bracket 17, which improves the reliability of the fixing of the catalytic module 16 and prevents the catalytic module 16 from falling off from the conical cavity 171.
[0053] Specifically, the pressing member 18 includes a connecting section whose two ends are connected and fixed to the bracket 17, and a first pressing section 181 and a second pressing section 182 arranged between the two ends of the connecting section, the first pressing section 181 is in a tortuous shape and is pressed against the upper end surface of the catalytic module 16, and the second pressing section 182 extends along the axial direction of the catalytic module 16 and is pressed against the outer periphery of the catalytic module 16. With such a design, the first pressing section 181 is in a tortuous shape and is pressed against the upper end surface of the catalytic module 16, increasing the pressing range of the catalytic module 16 and improving the reliability of the longitudinal fixation of the catalytic module 16, and the second pressing section 182 extends along the axial direction of the catalytic module 16 and is pressed against the outer periphery of the catalytic module 16, and also fixes the catalytic module 16 in the transverse direction.
[0054] It should be noted that the pressing member 18 can be a metal wire, which can achieve reliable fixation of the catalytic module 16 while avoiding reducing the obstruction of the ventilation slot 161 and ensuring that the air in the cooking cavity 11 passes through the catalytic module 16 smoothly.
[0055] Furthermore, the bottom edge of the conical cavity 171 is provided with an inwardly recessed step portion 173, and the lower end of the catalytic module 16 is mounted on the step portion 173. Such a design can form a reliable positioning for the catalytic module 16, and also facilitates the assembly and replacement of the catalytic module 16.
[0056] Since the wind speed is relatively high when the centrifugal fan 14 sucks the wind in the cooking cavity 11 and flows back, in order to further improve the oil fume purification effect, the side wall of the conical cavity 171 is provided with a plurality of through holes 172 along the circumference of the bracket 17 of the catalytic module 16. With such a design, when the centrifugal fan 14 sucks the wind in the cooking cavity 11 and flows back, the wind speed in the circumference of the catalytic module 16 is greater than the wind speed in the catalytic module 16 because the bracket 17 is provided with a plurality of through holes 172 in the circumference, that is, the flow rate of the oil fume in the catalytic module 16 is reduced, so that the oil fume can be fully contacted and purified in the catalytic module 16, thereby improving the oil fume purification effect and facilitating the miniaturization of the catalytic module 16. In addition, the plurality of through holes 172 are also conducive to increasing the air intake of the centrifugal fan 14, so that sufficient wind energy can be heated by the heating element 13 and then input into the cooking cavity 11, thereby ensuring the cooking efficiency.
[0057] In order to prevent large particles of impurities from entering the hot air chamber 12, a first filter screen 19 is provided on the bottom wall of the protective net 15 located outside the bracket 17, and a second filter screen 20 is provided on the bracket 17 to intercept larger particles of impurities.
[0058] It can be understood that in other embodiments of the present invention, the projection of the catalytic module on the horizontal plane is located within the projection range of the centrifugal fan on the horizontal plane, and the central axis of the catalytic module is staggered from the central axis of the centrifugal fan.
[0059] It can be understood that in other embodiments of the present invention, the first section and the second section may be in a grid shape, with the first section pressed against the upper end surface of the catalytic module and the second section pressed against the outer periphery of the catalytic module, thereby further increasing the limiting area and improving the fixing reliability of the catalytic module.
[0060] It is understandable that if Figures 11 to 16 As shown, in other embodiments of the present invention, the protective net 15 is provided with a return air hole 152 on the bottom wall of the outer periphery of the bracket 17, and the side wall of the protective net 15 is provided with an air outlet hole 153 to ensure air circulation in the cooking utensil. The side wall of the conical cavity 171 is a closed structure along the circumference of the bracket 17 of the catalytic module 16, and no through hole is provided, which can better block impurities from entering the hot air cavity 12 and also increase the structural strength of the bracket 17.
[0061] It should be noted that a first filter screen 19 is also provided on the bottom wall of the protection net 15 located outside the bracket 17 to intercept large particles of impurities.
[0062] It is understandable that in other embodiments of the present invention, a third filter screen may be provided at the bottom of the catalytic module to prevent large particles of impurities from entering the ventilation slots.
[0063] 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, comprising a shell with a cooking cavity, a hot air cavity is arranged on the top of the cooking cavity, a hot air component and a catalytic module are arranged in the hot air cavity, the hot air component comprises a heating element and a centrifugal fan, a protective net component is arranged between the hot air cavity and the cooking cavity, the hot air component generates hot air and inputs it into the cooking cavity to cook food, and the catalytic module is used to catalytically decompose oil smoke approaching and / or flowing through it, characterized in that: The protective net assembly is provided with a conical cavity corresponding to the return air outlet of the centrifugal fan, and the conical cavity is used to fix the catalytic module so that the hot air returned by the centrifugal fan flows through the catalytic module.
2. A cooking utensil according to claim 1, characterized in that: The protective net assembly comprises a protective net and a bracket arranged on the protective net, a conical cavity with upper and lower openings is defined in the bracket, and the catalytic module is fixed in the conical cavity.
3. The cooking utensil according to claim 1, characterized in that: The side wall of the conical cavity is provided with a plurality of through holes along the circumference of the catalyst module.
4. A cooking utensil according to claim 3, characterized in that: The through hole is covered with a filter screen.
5. The cooking utensil according to claim 1, characterized in that: The bottom edge of the conical cavity is provided with an inwardly recessed step portion, and the lower end of the catalytic module is mounted on the step portion.
6. The cooking utensil according to claim 1, characterized in that: A pressing piece is provided above the catalytic module, and the catalytic module is clamped between the pressing piece and the bracket.
7. The cooking utensil according to claim 6, characterized in that: The clamping member includes a connecting section whose two ends are fixedly connected to the bracket, and a first clamping section and a second clamping section arranged between the two ends of the connecting section. The first clamping section is tortuous and is pressed against the upper end surface of the catalytic module, and the second clamping section extends along the axial direction of the catalytic module and is pressed against the outer periphery of the catalytic module.
8. The cooking utensil according to claim 1, characterized in that: The projection of the catalytic module on the horizontal plane is located within the projection range of the heating element on the horizontal plane.
9. The cooking utensil according to claim 1, characterized in that: The catalytic module is arranged below the centrifugal fan, and the projection of the catalytic module on the horizontal plane is located within the projection range of the centrifugal fan on the horizontal plane.
10. The cooking utensil according to claim 1, characterized in that: The central axis of the catalytic module coincides with the central axis of the centrifugal fan.