A pot with air curtain guiding function

Abstract

This invention discloses a cookware with an air curtain guiding function, comprising a pot body and an air curtain handle fixed thereto. The air curtain handle consists of a grip and an air duct fitted over the pot rim. The grip houses a fan, control components, and a power supply unit, while the air duct has annularly distributed air outlets. The fan drives airflow through the air outlets, forming an annular air curtain at the pot rim to block oil fumes and oil droplets from splashing. Within a 60-degree fan-shaped area near the fan, the air outlets are angled upwards at 30 to 60 degrees to the pot rim plane; in the remaining 300-degree area, the air outlets are vertically upwards. A flow-expanding zone is provided between the grip and the air duct, and a waste outlet is located at the bottom of the air duct, along with a magnetic C-shaped sealing ring and a magnetic column; the waste outlet automatically opens when the pot lid is closed for self-cleaning. The grip also has a flow control switch, which can close one side of the airflow channel to enhance the airflow on the tilting side when pouring food. The power supply unit uses a pluggable battery pack or a power plug. This cookware has excellent anti-splatter and smoke-blocking properties, and also features self-cleaning and flexible power supply functions.

Description

Technical Field

[0001] This invention relates to the field of cooking utensils technology, and in particular to a cookware with an air curtain guiding function. Background Technology

[0002] In both home and commercial cooking, especially during high-temperature operations such as frying, deep-frying, and stir-frying, oil splattering frequently occurs inside cookware. This splattering hot oil can easily cause burns to the user's hands and face, posing a safety hazard. Furthermore, cooking fumes contain a large amount of fine particulate matter and volatile organic compounds. If these are not effectively extracted in a timely manner, they not only affect kitchen air quality but also reduce the efficiency of the range hood, causing the fumes to spread throughout the room and adhere to walls, cabinets, and appliance surfaces, accumulating over time and becoming difficult to clean.

[0003] To address these issues, various devices exist in the prior art to prevent oil splattering or assist in fume extraction. For example, a common practice is to cover the pot opening with a splash guard or a transparent lid. However, such structures hinder stirring and seasoning during cooking and cannot simultaneously achieve efficient fume extraction. Other solutions attempt to add air curtain generators to the stovetop or range hood, using airflow barriers to isolate fumes. However, these devices are typically fixed to the stovetop or range hood, separate from the cookware. Their air curtain direction is difficult to precisely match the pot opening, and they are limited by the stovetop layout, resulting in poor flexibility and adaptability.

[0004] In conclusion, it is necessary to propose a cookware that can effectively suppress oil droplet splatter and reduce the spread of oil fumes without affecting the convenience of cooking operations. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a cookware with an air curtain guiding function.

[0006] This invention is achieved using the following technical solution: a cookware and a matching lid. The cookware consists of a pot body and an air curtain handle with an air curtain function, which is fixedly connected to the pot body and sleeved on the pot rim. The handle contains a fan, control components, and a power supply unit. An air inlet is provided at the end of the handle away from the cookware. The air rim has multiple air outlets arranged in a ring. The fan can discharge airflow through the multiple air outlets, thereby forming a ring-shaped air curtain at the pot rim to block oil fumes.

[0007] Preferably, a flow-expanding zone is provided between the handle and the air duct to increase the air intake of the air duct, thereby ensuring the air pressure at the far-end air outlet.

[0008] Preferably, in the 60-degree fan-shaped area of ​​the duct near the fan, the air outlet is set upward at an angle of 30 to 60 degrees to the plane of the pot opening, so as to be opposite to the air outlet direction of the fan, thereby maximizing the airflow intensity to resist splashing oil droplets.

[0009] Preferably, in the 300-degree annular area of ​​the duct away from the fan, the air outlet is set at a 90-degree angle upwards to the plane of the pot opening, in order to limit the diffusion of oil fumes.

[0010] Preferably, the bottom inner wall of the air duct is provided with a plurality of waste discharge ports arranged in a ring, the bottom of the air duct is magnetically attracted with a C-shaped sealing ring, and the top of the C-shaped sealing ring is provided with a plurality of magnetically attracted columns arranged in a ring. The plurality of magnetically attracted columns penetrate the air duct and extend to the top of the air duct and cooperate with the pot lid. When the lid is placed on the cookware, it closes the air outlet and presses down the C-shaped sealing ring through the magnetic column, opening the exhaust port so that the air duct can be self-cleaned by airflow. When the lid is lifted, the C-shaped sealing ring is lifted by the magnetic force, causing it to re-adhere to the bottom of the air duct and close the exhaust port.

[0011] Preferably, the inner wall of the duct is designed with a sloping structure, with the end away from the exhaust port being higher and the end closer to the exhaust port being lower, so that impurities and oil and water falling into the duct can be discharged smoothly.

[0012] Preferably, at least one flow control switch is provided on the flow expansion area of ​​the handle, and the flow control switch is used to open and close the channel between the flow expansion area on the corresponding side and the air duct; When the food is poured out of the pot after cooking, closing the airflow channel on the opposite side of the tilting side can strengthen the airflow on the tilting side of the pot and prevent soup from seeping into the air duct through the air outlet.

[0013] Preferably, the flow control switch includes a shaft rotatably mounted inside the grip, a knob being provided on the portion of the shaft extending outside the grip, and a baffle being provided on the portion of the shaft within the flow amplification zone.

[0014] Preferably, the power supply unit includes a rechargeable battery pack that is pluggable into the grip to enable wireless power supply.

[0015] Preferably, the power supply unit further includes a power plug that is pluggable into the grip to reduce weight and provide wired power.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention creates an air curtain handle on the cookware, consisting of a handle, air duct, and fan, forming a ring-shaped airflow barrier at the pot opening. This effectively blocks the spread of oil fumes generated during cooking, reduces the risk of burns to the user from hot oil droplets splashing, and does not affect normal operations such as stir-frying and adding ingredients. Different angle designs are used for the air outlets in different areas of the duct. In the 60-degree fan-shaped area near the fan, the air outlet is at an angle of 30 to 60 degrees upward with the plane of the pot opening, which can resist the splashing of oil droplets towards the user with the maximum airflow intensity; in the other 300-degree annular area, the air outlet is vertically upward, guiding the oil fumes upward into the working range of the range hood, significantly improving the smoke exhaust efficiency and improving the air quality in the kitchen. A waste discharge port is set on the inner wall of the bottom of the air duct, and a C-shaped sealing ring and a magnetic column are used for magnetic adsorption. When the pot lid is closed, the waste discharge port is automatically opened, and the airflow of the fan is used to self-clean the inside of the air duct to remove accumulated oil, water and debris. After the pot lid is opened, the C-shaped sealing ring automatically resets and closes the waste discharge port, so as to ensure that the airflow can be discharged through the air outlet, realizing the switching between air curtain and self-cleaning. A flow control switch is installed on the flow expansion area of ​​the handle. When the pot pours out the food, the airflow channel on the opposite side of the tilting side can be closed, so that all the airflow is concentrated to the air outlet corresponding to the tilting side, which significantly enhances the air curtain strength in this area and prevents soup from flowing back into the air duct due to tilting. The power supply unit can use a rechargeable battery pack to achieve wireless power supply, so that the cookware is not restricted by the power cord. Alternatively, it can be replaced with a power plug for wired power supply to reduce the weight of the handle and adapt to the needs of different cooking scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the cookware with air curtain guiding function according to the present invention; Figure 2 This is a diagram showing the separation of the cookware and the lid in this invention; Figure 3 This is a disassembled view of the pot body and the air curtain handle in this invention; Figure 4 This is a first disassembled display of the air curtain wok handle; Figure 5 This is a second disassembled display of the air curtain wok handle; Figure 6 This is a side cross-sectional view of the cookware with air curtain guiding function according to the present invention; Figure 7 This is a disassembled view of the C-shaped sealing ring and the air curtain handle in this invention; Figure 8 This is a third disassembled view of the air curtain pot handle in this invention; Figure 9 This is a diagram illustrating the current control switch in this invention; Figure 10 This is a diagram illustrating two different power supply units in this invention.

[0018] Explanation of key symbols: 1. Cookware; 2. Lid; 11. Pot body; 12. Air curtain handle; 121. Grip; 122. Air duct; 1221. Air outlet; 123. Fan; 124. Control components; 125. Power supply unit; 126. Flow amplification zone; 127. C-type sealing ring; 128. Magnetic column; 129. Drain hole; 3. Flow control switch; 301. Shaft; 302. Knob; 303. Baffle. Detailed Implementation

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0020] Please combine Figures 1 to 10 A cookware with an air curtain guiding function includes a cookware 1 and a lid 2 used with it. The cookware 1 consists of a pot body 11 and an air curtain handle 12 with an air curtain function set on the pot body 11. The air curtain pot handle 12 consists of a handle 121 and an air duct 122 integrally connected to the handle 121 (the lid 2 has a stepped structure with a sealing fit with the air duct 122, see attached). Figure 6 The air duct 122 is fitted onto the pot opening of the pot body 11 (the entire air curtain pot handle 12 is composed of two layers combined, and a connecting plate is welded onto the air curtain pot handle 12, which is fixedly connected to the pot body 11 by screws). The handle 121 is equipped with a fan 123 (preferably a miniature silent axial flow fan), a control component 124, and a power supply unit 125. The entire handle 121 is composed of two parts: a thick tube and a thin tube. The thick tube is used to install the fan 123 and the control component 124, and the thin tube is used to house the power supply unit 125 and for gripping. The end of the thick tube of the handle 121 near the thin tube (the end away from the pot 1) is provided with multiple air inlets arranged in a ring, and the air inlets are provided with dustproof nets. The control component 124 is provided with a switch, and the switch control button extends to the outside of the handle 121. The fan volume and the on / off state can be controlled by the control component 124. Meanwhile, the bottom inner wall of the handle 121 thick pipe is also provided with a drain hole 129, and the drain hole 129 is also provided with a diaphragm. When the fan starts, the air pressure pushes the diaphragm to seal the drain hole 129 to prevent air leakage. When the motor stops, the diaphragm opens, and the oil and water that accidentally enter the thick pipe can be discharged through this. After the fan 123 is started, it draws in outside air through the air inlet, accelerates it through the internal air duct of the handle 121, and then sends it into the air pipe 122. The airflow is discharged through multiple air outlets 1221, thus forming a continuous or nearly continuous annular air curtain above the pot opening. This air curtain can effectively block the spread of oil fumes and splattering oil droplets generated during cooking, while not affecting the stirring, adding ingredients, and other operations inside the pot.

[0021] An airflow expansion zone 126 is provided between the handle 121 and the air duct 122. The cross-sectional area of ​​the airflow expansion zone 126 is larger than the cross-sectional area of ​​the main air duct inside the handle 121. It is used to reduce the airflow velocity and increase the static pressure, thereby increasing the air intake of the air duct 122. This ensures that the air outlet 1221 at the far end of the air duct 122 (i.e. the side away from the fan 123) has sufficient air pressure, making the pressure distribution of the annular air curtain more uniform in the circumferential direction and avoiding the problem of local air curtain weakness or absence.

[0022] Within a 60-degree fan-shaped area of ​​the duct 122 near the fan 123, the air outlet 1221 is positioned upwards at an angle of 30 to 60 degrees to the surface of the pot opening, preferably 45 degrees. This angle design ensures that the air outlet direction is relatively straight with the main airflow direction delivered by the fan 123, minimizing airflow deflection losses and guaranteeing airflow intensity in this area. This area corresponds to the side where the user stands, specifically designed to protect against hot oil droplets splashing towards the user during stir-frying, thus enhancing safety.

[0023] Within a 300-degree annular area of ​​the duct 122 away from the fan 123, the air outlet 1221 is set at a 90-degree angle to the pot opening plane, meaning that the air outlet 1221 in this area discharges air vertically upwards, forming a vertical airflow barrier to limit the horizontal diffusion of oil fumes and guide the oil fumes upwards into the working range of the range hood, thereby improving the overall smoke extraction efficiency.

[0024] The bottom inner wall of the air duct 122 is provided with multiple waste outlets arranged in a ring. The bottom of the air duct 122 is magnetically attracted to a C-shaped sealing ring 127. Multiple magnets are embedded in the bottom of the C-shaped sealing ring 127 so that it can be attracted to the bottom of the air duct 122 (a heat insulation layer is provided between the magnets and the C-shaped sealing ring 127). The top of the C-shaped sealing ring 127 is provided with multiple magnetic columns 128 arranged in a ring (the magnetic column 128 is composed of a metal column and a magnet embedded in the top of the metal column). The multiple magnetic columns 128 all penetrate the air duct 122 and extend to the top of the air duct 122 to cooperate with the pot lid 2. At the same time, the C-type sealing ring 127 and the air duct 122 can also achieve reverse push closure through elastic structures such as springs and spring sheets.

[0025] Through the above technical solution, when the lid 2 is placed on the cookware 1, the lid 2 presses down on the magnetic column 128, thereby causing the C-shaped sealing ring 127 to move down and open the exhaust port. At this time, the airflow generated by the fan 123 can carry away the oil, water, debris and other impurities accumulated inside the air duct 122 and discharge them from the exhaust port, achieving self-cleaning. When the lid 2 is lifted, the C-shaped sealing ring 127 automatically rises and resets under the action of magnetic force (e.g., the magnetic attraction between the C-shaped sealing ring 127 and the bottom of the air duct 122), resealing the exhaust port to prevent soup or oil droplets from accidentally leaking out of the exhaust port during cooking. Furthermore, the entire C-shaped sealing ring 127 can be directly removed from the air duct 122, making it easier to clean the inside of the air duct 122.

[0026] The inner wall of the duct 122 is designed with a sloping structure, meaning that the end away from the exhaust port is higher and the end closer to the exhaust port is lower. This sloping structure allows condensed oil, water, or small food residues that fall into the duct 122 to automatically collect towards the exhaust port under the action of gravity. Combined with the self-cleaning airflow, this can more thoroughly remove pollutants from inside the duct and prevent odors or blockages after long-term use.

[0027] At least one flow control switch 3 is provided on the airflow expansion zone 126 of the handle 121 (only one flow control switch 3 is shown in the attached figure). The flow control switch 3 is used to open and close the channel between the airflow expansion zone 126 and the air duct 122 on the corresponding side. When the pot 1 pours the food from the pot into the plate, the user can close the airflow channel on the opposite side of the tilting side. At this time, all the airflow delivered by the fan 123 is concentrated and flows to the air outlet 1221 corresponding to the tilting side, which significantly enhances the airflow in this area. This can prevent soup from flowing back into the air duct 122 through the air outlet 1221 during the tilting process. When both flow control switches 3 are closed at the same time, the air outlet 1221 in the 60-degree fan-shaped area near the fan 123 can be made stronger, thereby turning the annular air curtain into a unidirectional air curtain and improving its high-strength barrier against oil splashes.

[0028] The flow control switch 3 includes a shaft 301 rotatably mounted within the grip 121, with a knob 302 located on the portion of the shaft 301 extending outside the grip 121. A baffle 303 is located on the portion of the shaft 301 within the current amplification zone 126. Two A magnets at a 90-degree angle are embedded in the top inner wall of the grip 121, and a B magnet, which engages with the two A magnets, is embedded above the baffle 303. When the knob 302 is rotated, the baffle 303 rotates within a 90-degree range. When the B magnet aligns and attracts one of the A magnets, the baffle 303 is in a stable state of being fully open or fully closed. This magnetic positioning structure provides clear tactile feedback and prevents the baffle from shifting due to vibration.

[0029] The power supply unit 125 includes a rechargeable battery pack, such as a polymer lithium battery, that is pluggable into the handle 121. The rechargeable battery pack is charged via a charging port at the rear of the handle 121, enabling wireless power supply and freeing the cookware from the constraints of a power cord when used on the stovetop, thus making operation more flexible.

[0030] As an alternative power supply solution, the power supply unit 125 also includes a pluggable power plug located within the grip 121. The power plug can be directly connected to a power adapter or a pre-installed power outlet on the cooktop. This solution eliminates the need for a built-in battery, significantly reducing grip weight and wrist strain, making it suitable for extended periods of continuous cooking. Users can quickly switch between the battery module and the power plug module according to their needs.

[0031] The implementation principle of a cookware with an air curtain guiding function in this application embodiment is as follows: In use, the fan 123 is activated via the control component 124. The fan 123 draws in air through the air inlet, and after the airflow is stabilized by the expansion zone 126, it enters the air duct 122 and is finally discharged from multiple air outlets 1221 on the air duct 122, forming an annular air curtain above the opening of the pot body 11. In the 60-degree fan-shaped area near the fan 123, the air outlets 1221 are tilted upward at an angle of 30 to 60 degrees to use high-intensity airflow to resist oil droplets splashing towards the user; in the remaining 300-degree annular area, the air outlets 1221 are vertically upward, guiding the oil fumes upward into the range hood and limiting their horizontal diffusion. When the lid 2 is closed, the lid 2 presses down on the magnetic column 128, pushing the C-shaped sealing ring 127 down and opening the exhaust port at the bottom of the air duct 122. At this time, the airflow generated by the fan 123 blows out the oil, water, debris and other impurities accumulated inside the air duct 122 from the exhaust port, achieving self-cleaning. After the lid 2 is opened, the C-shaped sealing ring 127 automatically rises and resets under the action of magnetism, resealing the exhaust port. When the pot 1 is tilted, the user can rotate the knob 302 of the flow control switch 3 to drive the baffle 303 to close the airflow channel on the opposite side of the tilting side, so that all the airflow sent by the fan 123 is concentrated to the air outlet 1221 corresponding to the tilting side, which significantly enhances the air curtain strength in this area and prevents soup from flowing back into the air duct 122.

[0032] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A cookware with an air curtain guiding function, comprising a cookware (1) and a lid (2) for use therewith, characterized in that: The cookware (1) consists of a pot body (11) and an air curtain handle (12) with an air curtain function set on the pot body (11); The air curtain pot handle (12) includes a handle (121) and an air duct (122) that is fixedly connected to the handle (121) and sleeved on the pot opening of the pot body (11). The handle (121) is equipped with a fan (123), a control component (124) and a power supply unit (125), and an air inlet is provided at the end of the handle (121) away from the pot (1); The duct (122) is provided with multiple air outlets (1221) arranged in a ring. The fan (123) can discharge the airflow through the multiple air outlets (1221) to form a ring-shaped air curtain at the pot opening to block the oil fumes.

2. The cookware with air curtain guiding function as described in claim 1, characterized in that, An expansion zone (126) is provided between the handle (121) and the air duct (122) to increase the air intake of the air duct (122) and thus ensure the air pressure at the far-end air outlet (1221).

3. The cookware with air curtain guiding function as described in claim 1, characterized in that, In the 60-degree fan-shaped area of ​​the duct (122) near the fan (123), the air outlet (1221) is set upward at an angle of 30 to 60 degrees with the plane of the pot opening, so as to be opposite to the air outlet direction of the fan, thereby maximizing the airflow intensity to resist splashing oil droplets.

4. The cookware with air curtain guiding function as described in claim 1, characterized in that, Within a 300-degree annular area of ​​the duct (122) away from the fan (123), the air outlet (1221) is set upward at a 90-degree angle to the pot opening plane to limit the diffusion of oil fumes.

5. The cookware with air curtain guiding function as described in claim 1, characterized in that, The bottom inner wall of the air duct (122) is provided with a plurality of waste discharge ports arranged in a ring. The bottom of the air duct (122) is magnetically attracted with a C-shaped sealing ring (127). The top of the C-shaped sealing ring (127) is provided with a plurality of magnetically attracted columns (128) arranged in a ring. The plurality of magnetically attracted columns (128) all penetrate the air duct (122) and extend to the top of the air duct (122) and cooperate with the pot lid (2). When the lid (2) is placed on the cookware (1), the lid (2) closes the air outlet (1221) and presses down the C-shaped sealing ring (127) through the magnetic column (128) to open the exhaust port, so that the air duct (122) can complete self-cleaning by airflow; when the lid (2) is lifted, under the action of magnetic force, the lid (2) drives the C-shaped sealing ring (127) to rise, so that the C-shaped sealing ring (127) is re-adsorbed to the bottom of the air duct (122) to close the exhaust port.

6. The cookware with air curtain guiding function as described in claim 5, characterized in that, The inner wall of the duct (122) is designed with a slope, with the end away from the exhaust port being high and the end near the exhaust port being low, so that impurities and oil and water falling into the duct (122) can be discharged smoothly.

7. The cookware with air curtain guiding function as described in claim 2, characterized in that, At least one flow control switch (3) is provided on the flow expansion area (126) of the handle (121). The flow control switch (3) is used to open and close the channel between the flow expansion area (126) on the corresponding side and the air duct (122). When the pot (1) finishes cooking and pours out the food, by closing the airflow channel on the opposite side of the tilting side, the wind force on the tilting side of the pot (1) can be strengthened, and the soup can be prevented from seeping into the air duct (122) through the air outlet (1221).

8. The cookware with air curtain guiding function as described in claim 7, characterized in that, The flow control switch (3) includes a shaft (301) rotatably mounted in the grip (121), a knob (302) is provided on the part of the shaft (301) extending outside the grip (121), and a baffle (303) is provided on the part of the shaft (301) within the flow expansion zone (126).

9. The cookware with air curtain guiding function as described in claim 1, characterized in that, The power supply unit (125) includes a rechargeable battery pack that is pluggable into the grip (121) to enable wireless power supply.

10. The cookware with air curtain guiding function as described in claim 1, characterized in that, The power supply unit (125) also includes a power plug that is pluggable into the grip (121) to reduce weight and provide wired power supply.

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