Convection type circulating purification system for cooking

Abstract

The utility model relates to a convection type circulating purification system for cooking. The convection type circulating purification system comprises a main body with a cavity, a cooking area for heating food, and a fan which is used for driving airflow to run and is provided with an airflow output end and an airflow input end, a middle air duct and a peripheral air duct which are communicated with each other are arranged in the cavity, and the middle air duct, the peripheral air duct and the fan are sequentially communicated to form an airflow circulating air duct; the airflow input end of the fan communicates with the middle air duct, the airflow output end of the fan communicates with the peripheral air duct, and when the fan operates, air sequentially and circularly flows through the fan, the peripheral air duct and the middle air duct. The middle air duct and the peripheral air duct which are communicated with the cooking area are arranged on the cavity, the middle air duct, the peripheral air duct and the fan are sequentially communicated to form the air flow circulating air duct, and waste gas and smell of products in the cooking process infinitely and circularly flow in the cavity according to the principle that air convects in the cavity. And zero emission or trace emission of gas and smell generated during cooking is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking appliances, in particular to a convection circulation purification system for cooking. Background Art

[0002] Chinese patent number ZL202023289167.4 discloses a smokeless and odorless hot pot grill, comprising a shell, a heating device, and an inner pot, wherein the heating device is installed at the bottom of the inner pot, the shell comprises an outer shell and an inner shell, the inner pot is installed in the inner shell, the inner shell is installed in the outer shell, a fan and a filter air duct are arranged in the inner shell, an air suction port, an air suction duct, an air blowing duct, and an air blowing port are arranged between the outer shell and the inner shell, the air suction port and the air blowing port are convectionally connected, the air suction duct is respectively connected with the air inlet of the air suction port and the filter air duct, and the air blowing duct is respectively connected with the air outlet and the air blowing port of the filter air duct, so that under the action of the kinetic energy of the fan, the air suction port, the air suction duct, the filter air duct, the air blowing duct, and the air blowing port form an opposite side inner circulation filter screen for absorbing and filtering the oil smoke and odor generated by the inner pot. The structure is simple, easy to use, and it can avoid the overflow of oil smoke and odor, has a good filtering effect, improves the environmental protection strength, provides a comfortable use environment, and ensures the quality of food processing.

[0003] The food of the utility model is placed on the inner pot. When a sealing cover is placed on the shell, it is easier to realize a smokeless inner circulation air duct. If the shell opening is opened, the smoke and fire are discharged outward, and the smokeless inner circulation air duct cannot be well realized. Utility Model Content

[0004] The utility model aims to provide a convection circulation purification system for cooking, by arranging an intermediate air duct and a peripheral air duct connected to the cooking area on the cavity, the intermediate air duct, the peripheral air duct and the fan are connected in sequence to form an airflow circulation air duct, and the principle of gas convection in the cavity is utilized, so that the waste gas and odor of the product during the cooking process circulate infinitely in the cavity, thereby achieving zero emission or trace emission of the gas and odor generated during cooking (part of the odor is discharged from the opening of the cavity), so that the user can clamp food, fry food, grill food, etc. at the open cavity, and the cavity does not need to be covered to achieve the waste gas and odor of the product during the cooking process can also circulate infinitely in the cavity.

[0005] A convection circulation purification system for cooking designed for this purpose comprises a main body with a cavity, a cooking area for heating food, and a fan for driving air flow and provided with an air flow output end and an air flow input end;

[0006] The cavity is provided with a middle air duct and a peripheral air duct connected to the cooking area, and the middle air duct, the peripheral air duct and the fan are connected in sequence to form an air circulation air duct;

[0007] The airflow input end of the fan is connected to the middle air duct, and the airflow output end of the fan is connected to the peripheral air duct. When the fan is running, the gas circulates through the fan, the peripheral air duct, and the middle air duct in sequence;

[0008] Alternatively, the airflow input end of the fan is connected to the peripheral air duct, and the airflow output end of the fan is connected to the middle air duct. When the fan is running, the gas circulates through the fan, the middle air duct, and the peripheral air duct in sequence.

[0009] The cavity is provided with a convection guide plate which is arranged opposite to the fan, and the convection guide plate is arranged above the top of the middle air duct. By utilizing the principle of gas convection in the cavity, the waste gas and odor of the product during cooking circulate infinitely in the cavity, achieving zero emission or trace emission of gas and odor generated during cooking.

[0010] A portion of the peripheral air duct is connected to the cooking area, another portion of the peripheral air duct extends into the main body cavity and is connected to the fan, and at least a portion of the peripheral air duct is located below the cooking area; the fan is arranged at the lower part of the middle air duct, and the fan is located below the cooking area.

[0011] The peripheral air duct is located outside the cooking area, the middle air duct is located inside the cooking area, and the middle air duct is centrally arranged in the cooking area; one end of the middle air duct penetrates upward and is used to connect the peripheral air duct and the cooking area.

[0012] The middle air duct comprises an air duct body, a vent is arranged between the convection guide plate and the air duct body, and the outer air duct and the middle air duct are connected to each other through the vent.

[0013] The convection guide plate is extended along both sides of the middle air duct and partially covers the upward penetration part at one end of the middle air duct, so that the convection guide plate and the fan form convection, and the convection guide plate has the function of guiding the flow of air.

[0014] A first filter is provided on the peripheral air duct, and the first filter is arranged between the airflow output end of the fan and the cooking area. The airflow of the peripheral air duct enters the fan after being filtered by the first filter; the first filter material is activated carbon, filter cotton or electrostatic electronic filter.

[0015] A second filter is provided on the middle air duct, and the second filter is arranged between the airflow input end of the fan and the convection guide plate. The airflow in the middle air duct enters the fan after being filtered by the second filter. The second filter material is activated carbon, filter cotton or electrostatic electronic filter.

[0016] The cooking area includes a container for placing food and a heating element arranged at the bottom of the container; the heating element is an electric heating device or a fire heating device, and the electric heating device is a heating tube, a PTC ceramic hot air heating element or an induction cooker heating plate. The fire heating device includes a gas burner.

[0017] The container is detachably mounted on the cavity.

[0018] The main body is an oven or a hot pot.

[0019] The utility model has the following beneficial effects:

[0020] By arranging an intermediate air duct and an outer air duct connecting the cooking area on the cavity, the intermediate air duct, the outer air duct and the fan are connected in sequence to form an air circulation air duct. By utilizing the principle of gas convection in the cavity, the waste gas and odor of the product during the cooking process circulate infinitely in the cavity, achieving zero emission or trace emission of gas and odor generated during cooking (part of the odor is discharged from the opening of the cavity), so that users can pick up food, fry food, grill food, etc. at the open cavity.

[0021] The cavity does not need to be covered to achieve the infinite circulation of waste gas and odor of the product during cooking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of an embodiment of the utility model in which the gas circulates through the fan, the peripheral air duct, and the middle air duct in sequence when the fan is running.

[0023] Figure 2 This is a structural schematic diagram of another embodiment of the utility model, in which the gas circulates through the fan, the middle air duct, and the peripheral air duct in sequence when the fan is running. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1 , Figure 2 , a convection circulation purification system for cooking, comprising a main body 1 having a cavity, a cooking area 2 for heating food, and a fan 3 for driving air flow and having an air flow output end 5 and an air flow input end 4;

[0026] The main body 1 cavity is provided with an intermediate air duct 7 and an outer air duct 6 connected to the cooking area 2. The intermediate air duct 7, the outer air duct 6 and the fan 3 are connected in sequence to form an air circulation air duct;

[0027] The airflow input end 4 of the fan 3 is connected to the middle air duct 7, and the airflow output end 5 of the fan 3 is connected to the peripheral air duct 6. When the fan 3 is running, the gas circulates through the fan 3, the peripheral air duct 6, and the middle air duct 7 in sequence;

[0028] Alternatively, the airflow input end 4 of the fan 3 is connected to the peripheral air duct 6, and the airflow output end 5 of the fan 3 is connected to the intermediate air duct 7. When the fan 3 is running, the gas circulates through the fan 3, the intermediate air duct 7, and the peripheral air duct 6 in sequence;

[0029] The cavity is provided with a convection guide plate 8 which is arranged opposite to the fan 3 , and the convection guide plate 8 is arranged above the top end of the middle air duct 7 .

[0030] The convection guide plates 8 are extended along both sides of the middle air duct 7 and partially cover an upward penetration portion at one end of the middle air duct 7 .

[0031] A portion of the peripheral air duct 6 is connected to the cooking area 2, and another portion of the peripheral air duct 6 extends into the cavity of the main body 1 and is connected to the fan 3, and at least a portion of the peripheral air duct 6 is located below the cooking area 2; the fan 3 is arranged at the lower part of the middle air duct 7, and the fan 3 is located below the cooking area 2.

[0032] The middle air duct 7 includes an air duct body 9 , and a vent 10 is provided between the convection guide plate 8 and the air duct body 9 . The outer air duct 6 and the middle air duct 7 are connected to each other through the vent 10 .

[0033] A first filter 11 is provided on the peripheral air duct 6, and the first filter 11 is arranged between the airflow output end 5 of the fan 3 and the cooking area 2. The airflow of the peripheral air duct 6 enters the fan 3 after being filtered by the first filter 11; the material of the first filter 11 is activated carbon, filter cotton or electrostatic electronic filter.

[0034] A second filter 12 is provided on the middle air duct 7. The second filter 12 is arranged between the airflow input end 4 of the fan 3 and the convection guide plate 8. The airflow of the middle air duct 7 enters the fan 3 after being filtered by the second filter 12. The material of the second filter 12 is activated carbon, filter cotton or electrostatic electronic filter.

[0035] The cooking area 2 includes a container for placing food and a heating element arranged at the bottom of the container; the heating element is an electric heating device or a fire heating device, and the electric heating device is a heating tube, a PTC ceramic hot air heating element or an induction cooker heating plate. The fire heating device includes a gas burner.

[0036] The container is detachably mounted on the cavity.

[0037] The main body 1 is a grill or a hot pot.

[0038] In this embodiment, one side of the convection guide plate 8 is connected to the air duct body 9 , and a vent 10 is provided at the connection portion between the convection guide plate 8 and the air duct body 9 .

[0039] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A convection circulation purification system for cooking, characterized in that: It comprises a main body (1) having a cavity, a cooking area (2) for heating food, and a fan (3) for driving airflow and provided with an airflow output end (5) and an airflow input end (4); An intermediate air duct (7) and an outer air duct (6) connected to the cooking area (2) are provided in the cavity, and the intermediate air duct (7), the outer air duct (6) and the fan (3) are connected in sequence to form an air circulation air duct; The airflow input end (4) of the fan (3) is in communication with the intermediate air duct (7), and the airflow output end (5) of the fan (3) is in communication with the peripheral air duct (6). When the fan (3) is in operation, the gas circulates through the fan (3), the peripheral air duct (6), and the intermediate air duct (7) in sequence. Alternatively, the airflow input end (4) of the fan (3) is connected to the peripheral air duct (6), and the airflow output end (5) of the fan (3) is connected to the intermediate air duct (7), and when the fan (3) is in operation, the gas circulates through the fan (3), the intermediate air duct (7), and the peripheral air duct (6) in sequence; A convection guide plate (8) is provided on the cavity of the main body (1) and is arranged opposite to the fan (3). The convection guide plate (8) is arranged above the top end of the middle air duct (7).

2. The convection circulation purification system for cooking according to claim 1, characterized in that: A portion of the peripheral air duct (6) is connected to the cooking area (2), another portion of the peripheral air duct (6) extends into the cavity of the main body (1) and is connected to the fan (3), and at least a portion of the peripheral air duct (6) is located below the cooking area (2); the fan (3) is arranged at the bottom of the middle air duct (7), and the fan (3) is located below the cooking area (2).

3. The convection circulation purification system for cooking according to claim 1, characterized in that: The peripheral air duct (6) is located outside the cooking area (2), the middle air duct (7) is located inside the cooking area (2), and the middle air duct (7) is centrally arranged in the cooking area (2); one end of the middle air duct (7) is passed upward and is used to connect the peripheral air duct (6) and the cooking area (2).

4. The convection circulation purification system for cooking according to claim 1, characterized in that: The intermediate air duct (7) comprises an air duct body (9), a vent (10) is provided between the convection guide plate (8) and the air duct body (9), and the peripheral air duct (6) and the intermediate air duct (7) are connected to each other through the vent (10).

5. The convection circulation purification system for cooking according to claim 1, characterized in that: The convection guide plates (8) are extended along both sides of the middle air duct (7) and partially cover an upward penetration portion at one end of the middle air duct (7).

6. The convection circulation purification system for cooking according to claim 1, characterized in that: A first filter (11) is provided on the peripheral air duct (6); the first filter (11) is arranged between the airflow output end (5) of the fan (3) and the cooking area (2); the airflow of the peripheral air duct (6) enters the fan (3) after being filtered by the first filter (11).

7. The convection circulation purification system for cooking according to claim 1, characterized in that: A second filter (12) is provided on the intermediate air duct (7). The second filter (12) is arranged between the airflow input end (4) of the fan (3) and the convection guide plate (8). The airflow in the intermediate air duct (7) is filtered by the second filter (12) and then enters the fan (3).

8. The convection circulation purification system for cooking according to claim 1, characterized in that: The cooking area (2) comprises a container for placing food, and a heating element arranged at the bottom of the container; the heating element is an electric heating device or a fire heating device; and the container is detachably mounted on the cavity.

9. The convection circulation purification system for cooking according to claim 1, characterized in that: The main body (1) is a grill or a hot pot.

Images