Deodorizing structure for cooking device and cooking device

Abstract

The utility model relates to a cooking device and a deodorizing structure for the cooking device, which comprises a centrifugal fan blade and at least two catalytic modules, the catalytic modules are respectively and movably arranged outside the centrifugal fan blade along the circumferential direction, and each catalytic module has at least two states: in the first state, the catalytic modules are in the second state; a gap for air outlet airflow of the centrifugal fan blades to pass through is reserved between every two adjacent catalysis modules; and in the second state, the corresponding ends of the adjacent catalytic modules are spliced, so that the catalytic modules are spliced into a ring shape and surround the centrifugal fan blades. Compared with the prior art, according to the cooking requirement, through the action of each catalysis module, the peculiar smell in the airflow can be effectively removed, and the fragrance of food can be effectively ensured, so that the cooking effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of cooking devices, and in particular to a deodorizing structure for a cooking device and a cooking device. Background Technology

[0002] Ovens, oven-microwave ovens, steam ovens, and other cooking appliances with baking functions generally have a hot air circulation system installed on the rear side of the inner cavity to achieve circulating heating within the cavity and ensure uniform heating. For example, the Chinese invention patent "A Steam Oven and Its Exhaust Control Method" with patent number ZL202210040203.8 (authorization announcement number CN114468792A) is an example.

[0003] Furthermore, food produces fumes and odors during the baking process. Existing technologies address this issue by using a catalytic module to treat the gases produced during cooking. For example, Chinese utility model patent ZL202320075624.4 (authorization announcement number CN219206633U) discloses a baking-function cooking inner cavity structure and oven, including an inner cavity. A top heating pipe is installed on the inner top surface of the inner cavity, and a hot air fan is installed on the back plate. A hot air baffle is provided on the rear side of the inner cavity, with an air inlet and an air outlet. The hot air baffle and the back plate of the inner cavity form a hot air chamber. The fan blades of the hot air fan are located in the hot air chamber, and a back heating pipe is provided around the outer periphery of the fan blades. A high-temperature catalytic decomposition device for decomposing fumes is provided at the top of the inner cavity. The air outlet of the hot air baffle includes a first air outlet, and the air inlet of the high-temperature catalytic decomposition device is fluidly connected to the first air outlet of the hot air baffle.

[0004] A catalytic module is used to catalytically oxidize odorous gases and harmful gases such as CO and NO generated during cooking into non-toxic and odorless gases such as carbon dioxide and nitrogen. However, in addition to fumes and odorous gases, food cooking also produces aromatic gases, which enhance the flavor of dishes, especially foods with special aromas, through the stimulation and blending of these aromas. If these aromas are catalytically removed, the cooking effect will be reduced. Summary of the Invention

[0005] The first technical problem this invention aims to solve is to provide a deodorizing structure for cooking devices that offers good cooking results, in contrast to existing technologies.

[0006] The second technical problem to be solved by this utility model is to provide a cooking device with the above-mentioned deodorizing structure in contrast to the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a deodorizing structure for a cooking device, characterized in that it includes a centrifugal fan blade and a catalytic module, wherein there are at least two catalytic modules and they are movably arranged circumferentially outside the centrifugal fan blade, and each catalytic module has at least two states: in the first state, there is a gap between adjacent catalytic modules for the airflow of the centrifugal fan blade to pass through; in the second state, the corresponding ends of adjacent catalytic modules are joined together to form a ring and surround the centrifugal fan blade.

[0008] Furthermore, each of the aforementioned catalytic modules is rotatable. This rotation of the catalytic modules effectively enables the switching between the first and second states described above.

[0009] Furthermore, the straight line containing the rotation center axis of each catalytic module is parallel to the straight line containing the rotation center axis of the centrifugal fan blade. This allows for better switching between the first and second states through the rotation of each catalytic module.

[0010] Furthermore, each of the aforementioned catalytic modules is block-shaped and rotates around its own central axis. In the second state, the catalytic modules are assembled into a ring. This ensures stable rotation of each catalytic module and allows for better catalytic decomposition of the airflow from the centrifugal fan blades in the second state.

[0011] Furthermore, in the first state, each catalytic module is evenly spaced circumferentially around the centrifugal fan blade, and each catalytic module is arranged radially along the centrifugal fan blade. This allows the airflow from the centrifugal fan blade to pass more smoothly through the gaps between adjacent catalytic modules in the first state, thereby better preserving the aroma of the food and ensuring optimal cooking results.

[0012] Furthermore, it also includes a drive mechanism for synchronously rotating each catalytic module. This drive mechanism includes a drive unit and a transmission assembly for transmitting the power output from the drive unit to each catalytic module. The drive mechanism enables synchronous rotation of each catalytic module, facilitating better switching between the first and second states.

[0013] Furthermore, the transmission assembly includes a drive gear linked to the aforementioned drive device and transmission gears corresponding to each catalytic module. The drive gear and the centrifugal fan blades are arranged axially opposite each other, while each transmission gear is rotatably mounted on its corresponding catalytic module and meshes with the drive gear. The drive device drives the drive gear to rotate, which in turn drives each transmission gear to rotate, thereby achieving synchronous rotation of each catalytic module.

[0014] Furthermore, the driving device is a handle fixed to the aforementioned drive gear. This simplifies the structure of the driving device, eliminates the need for electrical components, and allows for the synchronous rotation of each catalytic module manually, thereby enabling the switching between the first and second states.

[0015] Furthermore, each of the aforementioned catalytic modules includes a square shell and a catalytic block. The shell is hollow, forming a cavity inside. The size of the catalytic block matches the cavity and is housed within it.

[0016] Furthermore, the aforementioned catalyst block is perforated with catalytic channels, and the corresponding sidewalls of the shell along the extension direction of each catalytic channel are hollowed out, exposing each port of each catalytic channel. In the second state, the airflow from the centrifugal fan blades passes through the catalytic channels of each catalyst block. This simplifies the internal structure of each catalytic module, and in the second state, allows the airflow to pass smoothly through each catalytic module for catalytic decomposition. Simultaneously, in the first state, it better prevents the airflow from the centrifugal fan blades from being catalytically decomposed by the catalytic modules.

[0017] Furthermore, the system also includes a deodorization chamber, in which the aforementioned centrifugal fan blades and each catalytic module are respectively disposed. An air inlet and an air outlet, matching the size of the centrifugal fan blades, are respectively opened on one side wall of the deodorization chamber. The air inlets are directly opposite the centrifugal fan blades, while the air outlets are spaced circumferentially around the air inlets. Thus, when the centrifugal fan blades are rotating, the airflow enters the deodorization chamber through the air inlets and, under the centrifugal force of the fan blades, passes through the gaps between adjacent catalytic modules or is catalytically decomposed by the catalytic modules, before flowing out of the deodorization chamber through the air outlets. It is evident that the deodorization chamber improves the efficiency and effectiveness of catalytic decomposition of odor molecules in the airflow.

[0018] Furthermore, it also includes an inner pot for holding food to be cooked, with an opening at the front. The centrifugal fan blades are mounted on the inner pot wall, and a hot air baffle is installed on the inner surface of the inner pot wall to form the deodorization chamber. The air inlet and outlet are respectively located on the hot air baffle. This allows for a better construction of the deodorization chamber within the inner pot, and enables airflow circulation within and between the inner pot and the deodorization chamber. This further enhances the efficiency and effect of catalytic decomposition of odor molecules in the airflow, while also ensuring the uniformity of the internal flow field of the inner pot and avoiding unevenness in the internal flow field caused by deodorization.

[0019] The technical solution adopted to further solve the second technical problem mentioned above is: a cooking device, characterized in that it includes the deodorizing structure for the cooking device as described above.

[0020] Compared with the prior art, the advantages of this utility model are as follows: In this utility model, there are at least two catalytic modules, each movably arranged circumferentially outside the centrifugal fan blades. Furthermore, each catalytic module has at least two states: In the first state, a gap is left between adjacent catalytic modules to allow the airflow from the centrifugal fan blades to pass through, or each catalytic module deviates from the flow direction of the airflow from the centrifugal fan blades; In the second state, the corresponding ends of adjacent catalytic modules are joined together to form a ring surrounding the centrifugal fan blades. In the first state, the airflow from the centrifugal fan blades can flow out through the gap between adjacent catalytic modules, and the airflow is not catalytically decomposed, thus retaining the odor of the airflow (e.g., the aroma of food or the aroma of seasonings); while in the second state, the airflow from the centrifugal fan blades blows onto each catalytic module, and each catalytic module catalytically decomposes the odor molecules (such as oil fume molecules) in the airflow from the centrifugal fan blades, thereby removing the odor from the airflow.

[0021] As can be seen, this utility model can effectively remove odors from the airflow and preserve the aroma of food by adjusting the action of each catalytic module according to cooking needs, thereby ensuring the cooking effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the deodorizing structure in an embodiment of the present invention;

[0023] Figure 2 This is a cross-sectional view of the deodorizing structure in an embodiment of this utility model;

[0024] Figure 3 This is a partial structural diagram of the deodorizing structure in an embodiment of the present invention (hot air baffle omitted, second state);

[0025] Figure 4 This is a partial exploded view of the deodorizing structure in an embodiment of this utility model;

[0026] Figure 5 for Figure 4 Enlarged view of section A;

[0027] Figure 6 This is a schematic diagram of the shell structure in an embodiment of the utility model;

[0028] Figure 7 This is a partial structural diagram of the deodorizing structure in another state in an embodiment of the present invention (the hot air baffle is omitted, in the first state). Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0031] like Figures 1-7 As shown, a deodorizing structure for a cooking device includes a centrifugal fan blade 1 and a catalytic module 2. The catalytic module 2 is at least two in number and is movably disposed circumferentially outside the centrifugal fan blade 1. Furthermore, each catalytic module 2 has at least two states: in the first state, a gap is left between adjacent catalytic modules 2 to allow the airflow from the centrifugal fan blade 1 to pass through; in the second state, the corresponding ends of adjacent catalytic modules 2 are joined together to form a ring surrounding the centrifugal fan blade 1.

[0032] As can be seen from the above, in this utility model, there are at least two catalytic modules 2 (specifically 16 in this embodiment) which are movably arranged circumferentially outside the centrifugal fan blade 1. Furthermore, each catalytic module 2 has at least two states: In the first state, a gap is left between adjacent catalytic modules 2 for the airflow from the centrifugal fan blade 1 to pass through, or each catalytic module 2 deviates from the flow direction of the airflow from the centrifugal fan blade 1; In the second state, the corresponding ends of adjacent catalytic modules 2 are joined together to form a ring that surrounds the centrifugal fan blade 1. In this way, in the first state, the airflow from the centrifugal fan blade 1 can flow out through the gap between adjacent catalytic modules 2, and the airflow is not catalytically decomposed, thus retaining the odor of the airflow (e.g., the aroma of food or the aroma of seasonings); while in the second state, the airflow from the centrifugal fan blade 1 blows onto each catalytic module 2, and each catalytic module 2 catalytically decomposes the odor molecules (such as oil fume molecules) in the airflow from the centrifugal fan blade 1, thereby removing the odor from the airflow. As can be seen, this utility model can effectively remove odors from the airflow and preserve the aroma of food by controlling the action of each catalytic module 2 according to cooking needs, thereby ensuring the cooking effect.

[0033] Furthermore, each of the aforementioned catalytic modules 2 is rotatably configured, thus effectively switching between the first and second states through the rotation of each catalytic module 2. Furthermore, the rotation center of each of the aforementioned catalytic modules 2...

[0034] The straight lines containing the axes are parallel to the straight lines containing the rotation center axes of the centrifugal fan blades 1. This allows for better switching between the first and second states through the rotation of each catalytic module 2.

[0035] Specifically, each of the aforementioned catalytic modules 2 is block-shaped and rotates around its own central axis. Furthermore, in the second state, the catalytic modules 2 are assembled into a ring, ensuring stable rotation and enabling them to better catalytically decompose the airflow from the centrifugal fan blade 1. Preferably, in the first state, each catalytic module 2 is circumferentially spaced around the centrifugal fan blade 1 and radially arranged. This allows the airflow from the centrifugal fan blade 1 to pass more smoothly through the gaps between adjacent catalytic modules 2, thus better preserving the aroma of food and ensuring optimal cooking results.

[0036] Furthermore, the system also includes a drive mechanism 4 for synchronously rotating each catalytic module 2. This drive mechanism 4 includes a drive unit 43 and a transmission assembly for transmitting the power output from the drive unit 43 to each catalytic module 2. The drive mechanism 4 enables synchronous rotation of each catalytic module 2, facilitating better switching between the first and second states. Specifically, the transmission assembly includes a drive gear 41 linked to the drive unit 43 and transmission gears 42 corresponding to each catalytic module 2. The drive gear 41 is axially opposite to the centrifugal fan blade 1, while each transmission gear 42 is rotatably mounted on its corresponding catalytic module 2 and meshes with the drive gear 41. The drive unit 43 drives the drive gear 41 to rotate, which in turn drives each transmission gear 42, thus achieving synchronous rotation of each catalytic module 2. The drive unit 43 is a handle fixed to the drive gear 41. This simplifies the structure of the drive unit 43, eliminating the need for electrical components and allowing for manual synchronous rotation of each catalytic module 2, thereby enabling switching between the first and second states.

[0037] Furthermore, each of the aforementioned catalytic modules 2 includes a square shell 20 and a catalytic block 21. The shell 20 is hollow, forming a cavity 200 inside. The size of the catalytic block 21 matches the cavity 200 and is housed within it. Catalytic channels 210 are provided through the catalytic block 21, and the corresponding sidewalls of the shell 20 along the extending direction of each catalytic channel 210 are hollowed out, exposing each port of each catalytic channel 210. In the second state, the airflow from the centrifugal fan 1 passes through the catalytic channels 210 of each catalytic block 21. This simplifies the internal structure of each catalytic module 2, and in the second state, allows the airflow to pass smoothly through each catalytic module 2 for catalytic decomposition. Simultaneously, in the first state, it better prevents the airflow from the centrifugal fan 1 from being catalytically decomposed by each catalytic module 2.

[0038] In addition, a fixed annular mounting plate 3 is included, which surrounds the centrifugal fan blade 1 with the centrifugal fan blade 1 as the center. A first rotating shaft 201 and a bushing 202 are respectively provided on the corresponding end face of the housing 20 of each catalyst module 2, and a second rotating shaft 31 corresponding to each catalyst module 2 is fixed on the mounting plate 3. Each second rotating shaft 31 is inserted into the corresponding bushing 202, and each bushing 202 can rotate relative to the corresponding second rotating shaft 31. The first rotating shaft 201, bushing 202, and second rotating shaft 31 on each catalyst module 2 are respectively arranged along their rotational axis, and each transmission gear 42 is respectively mounted on the first rotating shaft 201 of the corresponding catalyst module 2.

[0039] Furthermore, the system also includes a deodorization chamber 50, in which the aforementioned centrifugal fan blades 1 and each catalytic module 2 are respectively disposed. On one side wall of the deodorization chamber 50, an air inlet 51 and an air outlet 52, matching the size of the fan surface of the centrifugal fan blades 1, are respectively provided. The air inlet 51 is directly opposite the centrifugal fan blades 1, while the air outlets 52 are spaced circumferentially around the air inlet 51. Thus, when the centrifugal fan blades 1 are rotating, the airflow enters the deodorization chamber 50 through the air inlet 51, and under the centrifugal force of the centrifugal fan blades 1, passes through the gaps between adjacent catalytic modules 2 or is catalyzed and decomposed by each catalytic module 2, and then flows out of the deodorization chamber 50 through the air outlet 52. It is evident that the deodorization chamber 50 improves the efficiency and effectiveness of catalytic decomposition of odor molecules in the airflow. In this embodiment, the aforementioned drive gear 41 is disposed in the deodorization chamber 50 and located between the centrifugal fan blade 1 and the air inlet 51. In order to allow the gas entering the deodorization chamber 50 from the air inlet 51 to smoothly enter the centrifugal fan blade 1, the drive gear 41 is provided with vents 410 spaced circumferentially on its surface, which are directly opposite the air inlet 51. Preferably, the air inlet 51 is a circular opening, so that the gas can enter the deodorization chamber 50 more smoothly.

[0040] Furthermore, it also includes an inner pot (not shown) for holding food to be cooked. The front of the inner pot is open, and the centrifugal fan blade 1 is mounted on the inner pot wall. A hot air baffle 5 is provided on the inner surface of the inner pot wall to form the deodorizing chamber 50. The air inlet 51 and air outlet 52 are respectively opened on the hot air baffle 5. This allows for a better construction of the deodorizing chamber 50 in the inner pot. Moreover, the deodorizing chamber 50 enables airflow circulation within the inner pot and between the deodorizing chambers 50, thereby further improving the catalytic decomposition efficiency and effect of odor molecules in the airflow. At the same time, it also ensures the uniformity of the internal flow field of the inner pot and avoids unevenness of the internal flow field caused by deodorization.

[0041] The deodorizing structure in this embodiment is applied in a cooking device (specifically, a cooking device with a baking function, such as an oven, a steam oven, or a steam microwave oven). This cooking device includes an inner pot (not shown) for holding food to be cooked. The inner pot has an opening at the front. The centrifugal fan blade 1 is mounted on the back plate 4 of the inner pot. The mounting plate 3 is fixed to the inner surface of the back plate 4, and a hot air baffle 5 covers the inner surface of the back plate 4 to form the deodorizing chamber 50. The air inlet 51 and air outlet 52 are respectively located on the hot air baffle 5. This allows for a better construction of the deodorizing chamber 50 within the inner pot. Furthermore, the deodorizing chamber 50 enables airflow circulation within the inner pot and between the deodorizing chambers, further improving the catalytic decomposition efficiency and effect of odor molecules in the airflow. Simultaneously, it ensures the uniformity of the internal flow field within the inner pot, avoiding unevenness caused by deodorization. As can be seen, the deodorizing chamber 50 in this invention also serves as the hot air chamber of the cooking device. Preferably, the deodorizing chamber 50 is further equipped with an annular heating tube (not shown) to provide heat for the decomposition catalytic reaction of each catalytic module 2. More preferably, the heating tube is annular and positioned outside each catalytic module 2 with the centrifugal fan blade 1 as the center. In this embodiment, the deodorizing chamber 50 is located on the back of the inner liner, but it can also be located in other positions within the inner liner, such as the left side wall, right side wall, bottom wall, or top wall.

Claims

1. A deodorizing structure for a cooking appliance, characterized in that, The device includes a centrifugal fan blade (1) and a catalytic module (2). There are at least two catalytic modules (2) which are movably arranged circumferentially outside the centrifugal fan blade (1). Each catalytic module (2) has at least two states: in the first state, there is a gap between adjacent catalytic modules (2) for the airflow from the centrifugal fan blade (1) to pass through; in the second state, the corresponding ends of adjacent catalytic modules (2) are joined together so that each catalytic module (2) is assembled into a ring and surrounds the centrifugal fan blade (1).

2. The deodorizing structure for a cooking device as described in claim 1, characterized in that, Each of the aforementioned catalytic modules (2) is rotated and set.

3. The deodorizing structure for a cooking device as described in claim 2, characterized in that, The straight line containing the rotation center axis of each of the catalyst modules (2) is parallel to the straight line containing the rotation center axis of the centrifugal fan blade (1).

4. The deodorizing structure for a cooking device as described in claim 3, characterized in that, Each of the catalyst modules (2) is square in shape and rotates around its own central axis. In the second state described above, each catalyst module (2) is assembled into a ring shape.

5. The deodorizing structure for a cooking apparatus as described in any one of claims 1 to 4, characterized in that, In the first state, each catalytic module (2) is arranged circumferentially with the centrifugal fan blade (1) as the center, and each catalytic module (2) is arranged radially along the centrifugal fan blade (1).

6. The deodorizing structure for a cooking apparatus as described in claim 2, 3, or 4, characterized in that, It also includes a drive mechanism (4) for driving each catalytic module (2) to rotate synchronously, the drive mechanism (4) including a drive device (43) and a transmission component for transmitting the power output by the drive device (43) to each catalytic module (2).

7. The deodorizing structure for a cooking apparatus as described in claim 6, characterized in that, The transmission assembly includes a drive gear (41) that is linked to the drive device (43) and a transmission gear (42) that corresponds to each catalyst module (2). The drive gear (41) is arranged axially opposite to the centrifugal fan blade (1), and each transmission gear (42) is rotatably mounted on the corresponding catalyst module (2) and meshes with the drive gear (41).

8. The deodorizing structure for a cooking apparatus as described in claim 7, characterized in that, The drive device (43) is a handle fixed to the aforementioned drive gear (41).

9. The deodorizing structure for a cooking apparatus as described in any one of claims 1 to 4, characterized in that, Each of the aforementioned catalytic modules (2) includes a square housing (20) and a catalytic block (21). The housing (20) is hollow and forms a cavity (200) inside it. The size of the catalytic block (21) matches the cavity (200) and is housed within the cavity (200). Furthermore, the catalyst block (21) is provided with a catalyst channel (210) through it, and the corresponding sidewalls of the shell (20) along the extension direction of each catalyst channel (210) are hollowed out so that each port of each catalyst channel (210) is exposed. In the second state, the airflow from the centrifugal fan blade (1) passes through the catalyst channel (210) of each catalyst block (21).

10. The deodorizing structure for a cooking apparatus as described in any one of claims 1 to 4, characterized in that, It also includes a deodorization chamber (50), in which the centrifugal fan blades (1) and each catalyst module (2) are respectively disposed. Furthermore, an air inlet (51) and an air outlet (52) matching the size of the fan surface of the centrifugal fan blades (1) are respectively provided on one side wall of the deodorization chamber (50). The air inlet (51) is directly opposite to the centrifugal fan blades (1), while the air outlets (52) are arranged circumferentially with the air inlet (51) as the center.

11. The deodorizing structure for a cooking apparatus as described in claim 10, characterized in that, It also includes an inner pot for holding food to be cooked, the front side of which is open, the centrifugal fan blade (1) is installed on the inner pot wall, and a hot air baffle (5) is provided on the inner surface of the inner pot wall to form the deodorizing chamber (50), and the air inlet (51) and air outlet (52) are respectively opened on the hot air baffle (5).

12. A cooking apparatus, characterized in that, Includes the deodorizing structure for cooking appliances as described in any one of claims 1 to 11.

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