Control method of island table range hood and island table range hood

Abstract

The embodiment of the invention discloses a control method of an island table range hood and the island table range hood. The island table range hood comprises a range hood structure and an air curtain structure, the air curtain structure comprises an air curtain air outlet and an air guide plate, and the overturning angle of the air guide plate is adjustable. The control method comprises the following steps: detecting structural parameters of the cookware; calculating an initial included angle between the air deflector and the air outlet of the air curtain according to the structural parameters of the cookware; and when the range hood structure has smoke leakage, the included angle between the air deflector and the air outlet of the air curtain is increased until the far end point of the cookware is lower than the extension plane of the air deflector. According to the embodiment of the invention, the problem of smoke leakage of an existing range hood is solved, active interception of the air curtain in the smoke leakage state is realized, the smoke suction effect of the range hood is improved, the comfort of a user working in a kitchen is ensured, and the user experience is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to smoke machine air curtain technology, and more particularly to a control method for an island smoke machine and an island smoke machine. Background Technology

[0002] Open kitchens are a popular trend in modern residential design; however, their open structure also makes it easy for cooking fumes to spread to adjacent functional areas, posing a continuous challenge to air quality and living comfort.

[0003] To address this issue, island-style range hoods, with their recessed installation and top-mounted negative pressure exhaust structure, have become the mainstream fume control solution for open kitchens. To further improve fume capture efficiency, existing technologies also create a directional airflow barrier above the cooking surface to prevent fume escape and synergistically enhance the adsorption efficiency of the negative pressure zone.

[0004] However, the current control strategy of air curtain range hoods has significant limitations. In order to ensure the oil fume adsorption effect, the airflow angle and air volume are usually fixed parameters and cannot be dynamically adjusted according to the working status of the range hood. As a result, smoke escape problems occur when the cooking status changes. Summary of the Invention

[0005] This invention provides a control method and an island-style range hood to solve the problem of smoke leakage when existing range hoods change cooking conditions.

[0006] In a first aspect, embodiments of the present invention provide a control method for an island-style smoke machine. The island-style smoke machine includes a smoke machine structure and an air curtain structure. The air curtain structure includes an air curtain outlet and an air guide plate, and the rotation angle of the air guide plate is adjustable.

[0007] The method includes:

[0008] Detect the structural parameters of the cookware;

[0009] Based on the structural parameters of the cookware, calculate the initial angle between the air guide plate and the air curtain outlet; where, under the initial angle, the air guide plate satisfies that the far end point of the cookware is located on the extended plane of the air guide plate, and the far end point is the point on the cookware that is farthest from the air curtain outlet.

[0010] The air guide vane opens at the initial angle relative to the air curtain outlet.

[0011] When there is smoke leakage in the range hood structure, increase the angle between the air guide plate and the air curtain outlet until the far end of the cookware is lower than the extended plane of the air guide plate.

[0012] Optionally, the structural parameters of the cookware include height H0 and width or diameter B0;

[0013] Based on the structural parameters of the cookware, calculate the initial angle between the air guide plate and the air curtain outlet, including:

[0014] Calculate the initial angle A between the air guide plate and the air curtain outlet using the formula A=arctan((H-H0) / (L+B0 / 2)); where H is the height of the air guide plate's axis of rotation and L is the horizontal distance between the air curtain outlet and the center of the cooking area in the island range hood.

[0015] Optionally, when smoke leakage occurs in the range hood structure, the angle between the air guide plate and the air curtain outlet is increased until the far end of the cookware is lower than the extended plane of the air guide plate, including:

[0016] When there is smoke leakage in the structure of the range hood, the angle between the air guide plate and the air curtain outlet is adjusted to the target angle A'; where A' = arctan((H-H1) / (L+B1 / 2)); H1 is the corrected height of the cookware, B1 is the corrected width or corrected diameter of the cookware; H1 > H0, and / or, B1 > B0.

[0017] Optional, H1 = 1.05 * H0, B1 = 1.05 * B0.

[0018] Optionally, when smoke leakage occurs in the range hood structure, the angle between the air guide plate and the air curtain outlet is increased until the far end of the cookware is lower than the extended plane of the air guide plate, including:

[0019] When there is smoke leakage in the structure of the range hood, the angle between the air guide plate and the air curtain outlet is increased in a stepwise manner until there is no smoke leakage in the structure of the range hood or the angle between the air guide plate and the air curtain outlet reaches the maximum preset angle.

[0020] Optionally, the angle between the guide vane and the air curtain outlet can be increased in a step-by-step manner, including:

[0021] The target corrected angle A' between the air guide plate and the air curtain outlet is calculated using the formula A'=arctan((H-H1') / (L+B1' / 2)). Where H1'=(1+Δk1)*H1, B1'=(1+Δk2)*B1; H1 is the original corrected height of the cookware before the angle between the air guide plate and the air curtain outlet is increased, and B1 is the original corrected width or corrected diameter of the cookware before the angle between the air guide plate and the air curtain outlet is increased; H1' is the target corrected height of the cookware after the angle between the air guide plate and the air curtain outlet is increased, and B1' is the target corrected width or corrected diameter of the cookware after the angle between the air guide plate and the air curtain outlet is increased; Δk1 and Δk2 are both preset correction coefficients.

[0022] Adjust the air guide vane to correct the included angle A' with the included angle of the air curtain outlet.

[0023] Optionally, before the air guide vane opens at the initial angle with the air curtain outlet, the following additional steps are included:

[0024] Set the current operating setting of the range hood to the highest operating setting.

[0025] Optionally, before determining the current operating setting of the range hood to be the highest operating setting, the following steps are also included:

[0026] Obtain the operating position of the range hood structure;

[0027] If there is smoke leakage from the range hood structure, gradually increase the operating level of the range hood structure until there is no smoke leakage or the highest operating level of the range hood structure is reached.

[0028] Optionally, the range hood's operating modes include steaming, frying, and stir-frying.

[0029] When smoke leakage occurs in the range hood structure, gradually increase the operating level of the range hood structure until smoke leakage is eliminated or the highest operating level of the range hood structure is reached, including:

[0030] If the current working setting of the range hood is the steaming setting and there is smoke leakage, increase the working setting of the range hood to the frying setting.

[0031] If the current working setting of the range hood is the frying setting and there is smoke leakage, increase the working setting of the range hood to the stir-fry setting.

[0032] In a second aspect, embodiments of the present invention also provide an island-style smoke machine, including a smoke machine structure and an air curtain structure. The air curtain structure includes an air curtain outlet and an air guide plate, and the rotation angle of the air guide plate is adjustable. The island-style smoke machine is used to execute the control method of the island-style smoke machine as described in any of the first aspects.

[0033] This invention discloses a control method and an island-style range hood. The island-style range hood includes a range hood structure and an air curtain structure. The air curtain structure includes an air curtain outlet and an air guide plate, the tilt angle of which is adjustable. The control method includes: detecting the structural parameters of the cookware to obtain key physical dimension information of the cookware in the cooking area; calculating the initial angle between the air guide plate and the air curtain outlet based on the cookware's structural parameters, ensuring the air curtain covers the far end of the cookware; and increasing the angle between the air guide plate and the air curtain outlet until the far end of the cookware is below the extended plane of the air guide plate, forming a more effective smoke interception barrier. This invention solves the problem of smoke leakage in existing range hoods, achieving active air curtain interception in smoke-prone conditions, improving the range hood's smoke extraction effect, ensuring user comfort while working in the kitchen, and enhancing the user experience. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of an island-style smoke machine provided in an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the airflow of an island-style smoke machine provided in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of airflow inside an island-style smoke machine provided as an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of an air curtain structure provided in an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of a rotating structure provided in an embodiment of the present invention;

[0039] Figure 6 This is a flowchart of a control method for an island-style smoke machine provided in an embodiment of the present invention;

[0040] Figure 7 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the geometric principle of the island-style smoke machine provided in an embodiment of the present invention;

[0042] Figure 9 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0043] Figure 10 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0044] Figure 11 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0045] Figure 12 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0046] Figure 13 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0047] Figure 14 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0048] Figure 15 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention;

[0049] In the picture:

[0050] 1. Countertop; 11. Range hood exhaust vent; 2. Smoke collection chamber; 21. Range hood smoke inlet; 22. Cover plate; 23. Smoke collection chamber receiving groove; 3. Air curtain structure; 31. Air curtain housing; 311. Air curtain inlet; 312. Air curtain outlet; 32. Air curtain fan; 33. Air guide plate; 34. Rotating mechanism; 341. Rotating assembly; 3411. Fixed arm; 3412. Rotating arm; 3413. Arc-shaped rotating plate; 342. Push rod motor; 3421. Telescopic rod; 3422. Pin; 4. Infrared ranging module; 6. Range hood housing; 61. Air duct; 62. Range hood fan; 7. Induction cooker; 8. Lifting mechanism; 100. Cookware. Detailed Implementation

[0051] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0052] The terminology used in the embodiments of this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. It should be noted that directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this invention. Furthermore, in the context, it should be understood that when referring to an element being formed "on" or "below" another element, it can be formed not only directly on or below the other element, but also indirectly on or below it through intermediate elements. The terms "first," "second," etc., are used for descriptive purposes only and do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] The term "comprising" and its variations as used in this invention are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment".

[0054] It should be noted that the concepts of "first" and "second" mentioned in this invention are only used to distinguish the corresponding contents and are not used to limit the order or interdependence.

[0055] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0056] This invention provides an island-style smoke machine. Figure 1 This is a schematic diagram of the structure of an island-style smoke machine provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the airflow of an island-style smoke machine provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of airflow inside an island-style smoke machine provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of an air curtain structure provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of a rotating structure provided in an embodiment of the present invention. In the figure, the first direction X1 and the second direction X2 are aligned, and the third direction Y is perpendicular to the second direction X2.

[0057] like Figures 1-5 As shown, the island platform smoke machine includes a smoke machine structure and an air curtain structure 3, and the air curtain structure 3 includes an air curtain fan 32.

[0058] Specifically, the range hood structure includes: a countertop 1, on which a cooking area is provided for placing cooking utensils; and a smoke collection chamber 2, which is located on the countertop 1 and can be an embedded structure. The smoke collection chamber 2 rises during operation, exposing the range hood's smoke inlet 21, which faces the cooking area of ​​the countertop. The range hood's smoke inlet 21 is used to absorb cooking fumes through negative pressure, thereby improving the kitchen's fume conditions.

[0059] The air curtain structure 3 includes: an air curtain housing 31, an air curtain fan 32, an air guide plate 33, and a rotating mechanism 34. The air curtain structure 3 is located adjacent to the smoke inlet 21 of the range hood. The air curtain fan 32 is located inside the air curtain housing 31. The air curtain housing 31 is provided with an air curtain inlet 311 and an air curtain outlet 312. The air curtain outlet 312 faces the cooking area of ​​the countertop. The rotation angle of the air guide plate 33 of the air curtain outlet 312 is maintained between 0-90°.

[0060] When the air curtain fan 32 is activated, the air curtain outlet 312 sprays airflow upwards towards the cooking area of ​​the countertop 1, forming an air curtain that covers the cooking area to prevent cooking fumes from escaping into the kitchen. The air guide plate 33 is rotatably connected to the edge of the air curtain outlet 312 via a rotating mechanism 34, and the rotation angle of the air guide plate 33 is adjustable. The air guide plate 33 is used to adjust the outlet angle of the air curtain fan 32, thereby controlling the outlet angle of the airflow and changing the direction and range of the air curtain's effect.

[0061] For example, in the usage of this embodiment of the invention, when the user places the cooking appliance on the cooking area of ​​the countertop 1 and starts the induction cooker 7, the smoke collection chamber 2 hidden in the range hood housing 6 starts to work under the drive of the lifting mechanism 8. The top cover 22 gradually detaches from the countertop 1, and the smoke collection chamber 2 rises from the smoke collection chamber receiving groove 23 until the smoke inlet 21 of the range hood is completely exposed above the cooking area, and enters the working state.

[0062] Simultaneously, the infrared ranging module 4, installed on the smoke collection chamber 2 or the air curtain structure 3, is activated, emitting infrared rays to detect the horizontal distance between the far end of the cooking appliance and the smoke collection chamber 2, and transmitting the detection data to the controller. The controller receives the gear signal from the induction cooker 7 and, combined with the infrared ranging data, generates control commands for the air curtain structure 3.

[0063] The controller controls the air guide plate 33 in the air curtain structure 3 to rotate upwards, ensuring that the air curtain covers the cookware before stopping rotation. At this time, outside air enters the air curtain housing 31 from the air curtain inlet 311 on the side of the air curtain structure 3 away from the smoke collection chamber 2, and is accelerated by the air curtain fan 32 before being ejected from the air curtain outlet 312. Based on the Coanda effect, the airflow flows closely along the air guide plate 33, forming an air curtain above the cooking area. The fumes inside the air curtain are drawn in by the range hood inlet 21 of the smoke collection chamber 2. Under the action of the range hood fan 62, the fumes flow along the air duct 61 towards the range hood outlet 11, and are adsorbed and purified when flowing through the filter device (such as oil mesh, activated carbon, etc.) in the air duct 61. Finally, the clean airflow is discharged from the range hood outlet 11 on the countertop 1, located on the side of the smoke collection chamber 2 away from the cooking area.

[0064] After cooking, the user turns off the induction cooker 7, the air guide plate 33 of the air curtain structure 3 returns to its initial closed state, the smoke collection chamber 2 slowly descends under the action of the lifting mechanism 8, the top cover 22 is flush with the countertop 1, and the range hood enters standby mode.

[0065] In view of the island-style smoke machine of the above embodiments, the present invention also provides a control method for the island-style smoke machine. Figure 6 This is a flowchart of a control method for an island-style smoke machine provided in an embodiment of the present invention, for reference. Figure 6 The adjustment method includes:

[0066] S110, Detect the structural parameters of the cookware.

[0067] Among them, structural parameters can be understood as the physical dimensional information of the cookware, such as the height and width of the cookware.

[0068] Specifically, key physical dimensions of the cookware in the cooking area, such as height and width, are obtained by installing a range hood on the island. This provides the information basis for achieving precise air curtain coverage and efficient smoke collection in the next step.

[0069] For example, the island range hood also includes an infrared ranging module 4, which is set on the smoke collection chamber 2 or the air curtain structure 3 to detect the height and width of the cookware on the cooking area of ​​the countertop 1, thereby ensuring that the air curtain extension plane always covers or is slightly higher than the far end of the cookware, so that the air curtain completely wraps the cooking area.

[0070] S120. Calculate the initial angle between the air guide plate and the air curtain outlet based on the structural parameters of the cookware.

[0071] In the initial angle, the air guide plate ensures that the far end of the cookware is located on the extended plane of the air guide plate, and the far end is the point on the cookware farthest from the air curtain outlet. The initial angle can be understood as the angle between the air guide plate 33 and the air curtain outlet 312.

[0072] Specifically, to prevent cooking fumes from escaping from the edges of the cookware, the air curtain must ensure coverage of the point on the cookware furthest from the air curtain's outlet, creating a basic physical barrier. Building upon this, the varying heights and widths of different cookware alter the trajectory of the fumes. For example, tall cookware tends to cause fumes to spread upwards, while wide cookware may cause them to spread laterally over a wider area. Therefore, the angle and coverage of the air curtain need to be dynamically adjusted based on the actual fumes' diffusion trajectory, extending at least beyond the far end of the cookware to ensure that the fumes are captured by the air curtain and guided into the exhaust channel before they can spread further.

[0073] S130, control the air guide plate to open at the initial angle with the air curtain outlet.

[0074] Specifically, based on the calculated initial angle parameters, the controller sends a control command to the air curtain structure 3, driving the air guide plate 33 to rotate and adjust the air guide plate 33 to form a target angle with the air curtain outlet 312, ensuring that the air curtain coverage can effectively intercept the oil fumes generated by cooking.

[0075] For example, refer to Figure 5 The controller sends a command to the rotation mechanism 34 of the air curtain structure 3. The telescopic rod 3421 of the push rod motor 342 extends, and the pin 3422 slides in the limiting hole of the rotating arm 3412 along the preset direction, pushing the rotating arm 3412 to rotate around the first rotation node P1, which drives the arc-shaped rotating plate 3413 and the air guide plate 33 to open outward. The rotation stops when the angle between the air guide plate 33 and the air curtain outlet 312 is the initial angle.

[0076] S140. When there is smoke leakage in the structure of the range hood, increase the angle between the air guide plate and the air curtain outlet until the far end of the pot is lower than the extended plane of the air guide plate.

[0077] Among them, the "smoke escape" situation can be understood as the range hood being unable to effectively capture the oil fumes, causing the oil fumes to escape into the kitchen environment.

[0078] Specifically, when the range hood detects smoke leakage (such as excessive oil fume concentration or high escape probability), it may be due to a mismatch between the size of the cookware and the preset settings. Therefore, by adjusting the angle of the air guide plate, the air curtain coverage can be expanded to ensure that oil fumes generated at the edges of the cookware are effectively intercepted. Conversely, when the range hood is not escaping smoke, there is no need to adjust the angle of the air guide plate.

[0079] This invention discloses a control method for an island-style range hood. The island-style range hood includes a range hood structure and an air curtain structure. The air curtain structure includes an air curtain outlet and an air guide plate, the tilt angle of which is adjustable. The control method includes: detecting the structural parameters of the cookware to obtain key physical dimension information of the cookware in the cooking area; calculating the initial angle between the air guide plate and the air curtain outlet based on the cookware's structural parameters, ensuring the air curtain covers the far end of the cookware; and increasing the angle between the air guide plate and the air curtain outlet until the far end of the cookware is below the extended plane of the air guide plate, forming a more effective smoke interception barrier. This invention solves the problem of smoke leakage in existing range hoods, achieving active air curtain interception in smoke-prone conditions, improving the range hood's smoke extraction effect, ensuring user comfort while working in the kitchen, and enhancing the user experience.

[0080] Figure 7 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 7 Regarding the above embodiments and island-style range hoods, "S120, calculate the initial angle between the air guide plate and the air curtain outlet based on the structural parameters of the cookware." can be further refined as follows: based on the formula...

[0081] A = arctan((H-H0) / (L+B0 / 2)), calculate the initial angle A between the air guide plate and the air curtain outlet. Where H is the height of the air guide plate's rotation axis, and L is the horizontal distance between the air curtain outlet and the center of the cooking area in the island range hood.

[0082] For details not covered in this embodiment, please refer to the previous embodiment.

[0083] like Figure 7 As shown, another control method for an island-style tobacco machine provided in this embodiment of the invention may include the following specific steps:

[0084] S210, Detect the structural parameters of the cookware.

[0085] S220. Calculate the initial angle A between the air guide plate and the air curtain outlet according to the formula A=arctan((H-H0) / (L+B0 / 2)).

[0086] Figure 8 This is a geometrical schematic diagram of the island-style smoke machine provided in an embodiment of the present invention, for reference. Figure 8 Where H is the height of the rotating shaft of the air guide plate 33, and L is the horizontal distance between the air curtain outlet 312 and the center of the cooking area in the island range hood. H0 can be understood as the height of the cookware 100, and B0 can be understood as the width or diameter of the cookware 100. From the geometric relationship of the dashed triangle shown in the figure, we know that: tanA=(H-H0) / (L+B0 / 2).

[0087] Specifically, infrared sensors, cameras, or millimeter-wave radars are installed in or around the range hood to monitor the cooking area in real time, obtaining the height H of the rotation axis of the air guide plate 33 and the horizontal distance L between the air curtain outlet 312 and the center of the cooking area in the island range hood. The deflection angle of the air guide plate 33 is obtained based on trigonometric functions, thereby ensuring that the air curtain extension plane passes exactly through the far end of the cookware 100, forming a basic interception barrier to prevent oil fumes from escaping from the edge of the cookware.

[0088] For example, when the height H0 of the cookware 100 increases, or when the width or diameter B0 of the cookware 100 increases, it is easy to understand that the air guide plate 33 needs to be flipped upwards to match the height and width or diameter of the cookware 100, so that the plane of the air guide plate 33 is higher than the far end of the cookware 100. This avoids the inability to effectively form an air curtain above the cookware 100, and can effectively collect the fumes, preventing them from escaping. Conversely, when the height H0 of the cookware 100 decreases, or when the width or diameter B0 of the cookware 100 decreases, the air guide plate 33 needs to be flipped downwards to better match the height and width or diameter of the cookware 100, so that the plane of the air guide plate 33 is slightly higher than the far end of the cookware 100, avoiding untimely collection of fumes and preventing the fumes from escaping.

[0089] S230, control the air guide plate to open at the initial angle with the air curtain outlet.

[0090] S240. When there is smoke leakage in the structure of the range hood, increase the angle between the air guide plate and the air curtain outlet until the far end of the pot is lower than the extended plane of the air guide plate.

[0091] Based on the above embodiments, this invention quantifies the method of obtaining the initial included angle and calculates the angle of the air guide plate through trigonometric functions to ensure that the air curtain completely covers the cookware and achieves efficient capture of oil fumes.

[0092] Figure 9 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 9 Regarding the above embodiments and island-style range hoods, "S240, when there is smoke leakage in the range hood structure, increase the angle between the air guide plate and the air curtain outlet until the far end of the cookware is lower than the extended plane of the air guide plate." This can be further refined as follows:

[0093] When there is smoke leakage in the structure of the smoke hood, adjust the angle between the air guide plate and the air curtain outlet to the target angle A'.

[0094] Where A' = arctan((H-H1) / (L+B1 / 2)); H1 is the corrected height of the cookware, B1 is the corrected width or corrected diameter of the cookware; H1 > H0, and / or, B1 > B0.

[0095] For details not covered in this embodiment, please refer to the previous embodiment.

[0096] like Figure 9 As shown, another control method for an island-style tobacco machine provided in this embodiment of the invention may include the following specific steps:

[0097] S310, Detect the structural parameters of the cookware.

[0098] S320. Calculate the initial angle A between the air guide plate and the air curtain outlet according to the formula A=arctan((H-H0) / (L+B0 / 2)).

[0099] S330, control the air guide plate to open at the initial angle with the air curtain outlet.

[0100] S340. When there is smoke leakage in the structure of the smoke machine, adjust the angle between the air guide plate and the air curtain outlet to the target angle A′.

[0101] Where A' = arctan((H-H1) / (L+B1 / 2)); H1 is the corrected height of the cookware, B1 is the corrected width or corrected diameter of the cookware; H1 > H0, and / or, B1 > B0.

[0102] Specifically, the angle of the air deflector is set based on the physical edge of the cookware, just covering the edge. However, in actual use, cooking fumes may escape beyond the physical boundary of the cookware due to boiling, stirring, airflow disturbances, etc., or the cookware parameters may be inaccurate due to detection issues. By introducing a larger correction height H1 and / or correction width or correction diameter B1, a larger and taller "virtual cookware" is created. The corrected angle formula A'=arctan((H-H1) / (L+B1 / 2)) replaces H0 with H1 and B0 with B1 compared to the initial angle formula A=arctan((H-H0) / (L+B0 / 2)), thereby increasing the coverage of the air curtain and enabling it to capture the cooking fumes escaping from the outside, solving the problem of smoke escape.

[0103] Based on the above embodiments, the embodiments of the present invention quantify the specific process of calculating the corrected included angle formula, thereby improving the accuracy of angle adjustment.

[0104] In an optional embodiment, H1 = 1.05 * H0, B1 = 1.05 * B0.

[0105] Specifically, by uniformly applying a 5% magnification factor to the linear dimensional parameters of the cookware virtual model, the overall size is proportionally enlarged while maintaining the geometric proportions of the cookware.

[0106] Figure 10 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 10Regarding the above embodiments and island-style range hoods, "S240, when there is smoke leakage in the range hood structure, increase the angle between the air guide plate and the air curtain outlet until the far end of the cookware is lower than the extended plane of the air guide plate." This can be further refined as follows:

[0107] When there is smoke leakage in the structure of the range hood, the angle between the air guide plate and the air curtain outlet is increased in a stepwise manner until there is no smoke leakage in the structure of the range hood or the angle between the air guide plate and the air curtain outlet reaches the maximum preset angle.

[0108] For details not covered in this embodiment, please refer to the previous embodiment.

[0109] like Figure 10 As shown, another control method for an island-style tobacco machine provided in this embodiment of the invention may include the following specific steps:

[0110] S410, Detect the structural parameters of the cookware.

[0111] S420. Calculate the initial angle A between the air guide plate and the air curtain outlet according to the formula A=arctan((H-H0) / (L+B0 / 2)).

[0112] S430, control the air guide vane to open at the initial angle with the air curtain outlet.

[0113] S440. When there is smoke leakage in the structure of the smoke hood, the angle between the air guide plate and the air curtain outlet is increased in a stepwise manner until there is no smoke leakage in the structure of the smoke hood or the angle between the air guide plate and the air curtain outlet reaches the maximum preset angle.

[0114] Specifically, when the range hood detects smoke leakage, it gradually expands the air curtain coverage by progressively increasing the angle of the air guide plate until the smoke leakage problem is solved or the physical limit angle is reached, avoiding excessive angle adjustment at one time.

[0115] Based on the above embodiments, this invention refines the specific process of adjusting the angle of the air guide plate, using a multi-step adjustment method to improve the accuracy of angle adjustment and avoid over-adjustment caused by one-time over-adjustment.

[0116] Figure 11 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 11 Regarding the above embodiments and the island-style range hood, "S440, when there is smoke leakage in the range hood structure, the angle between the guide vane and the air curtain outlet is increased in a step-by-step manner until there is no smoke leakage in the range hood structure or the angle between the guide vane and the air curtain outlet reaches the maximum preset angle." This can be further refined as follows:

[0117] The target corrected angle A′ between the air guide plate and the air curtain outlet is calculated using the formula A'=arctan((H-H1') / (L+B1' / 2)). Where H1'=(1+Δk1)*H1, B1'=(1+Δk2)*B1; H1 is the original corrected height of the cookware before the angle between the air guide plate and the air curtain outlet is increased, and B1 is the original corrected width or diameter of the cookware before the angle between the air guide plate and the air curtain outlet is increased; H1' is the target corrected height of the cookware after the angle between the air guide plate and the air curtain outlet is increased, and B1' is the target corrected width or diameter of the cookware after the angle between the air guide plate and the air curtain outlet is increased; Δk1 and Δk2 are preset correction coefficients.

[0118] Adjust the air guide vane to correct the included angle A′ with the included angle of the air curtain outlet.

[0119] For details not covered in this embodiment, please refer to the previous embodiment.

[0120] like Figure 11 As shown, another control method for an island-style tobacco machine provided in this embodiment of the invention may include the following specific steps:

[0121] S510, Detect the structural parameters of the cookware.

[0122] S520. Calculate the initial angle A between the air guide plate and the air curtain outlet according to the formula A=arctan((H-H0) / (L+B0 / 2)).

[0123] S530, control the air guide plate to open at the initial angle with the air curtain outlet.

[0124] S540. Calculate the target corrected angle A′ between the air guide plate and the air curtain outlet each time the angle between the air guide plate and the air curtain outlet is increased, according to the formula A'=arctan((H-H1') / (L+B1' / 2)).

[0125] Wherein, H1'=(1+Δk1)*H1, B1'=(1+Δk2)*B1; H1 is the original corrected height of the cookware before the angle between the air guide plate and the air curtain outlet is increased, and B1 is the original corrected width or corrected diameter of the cookware before the angle between the air guide plate and the air curtain outlet is increased; H1' is the target corrected height of the cookware before the angle between the air guide plate and the air curtain outlet is increased, and B1' is the target corrected width or corrected diameter of the cookware before the angle between the air guide plate and the air curtain outlet is increased; Δk1 and Δk2 are both preset correction coefficients.

[0126] Specifically, Δk1 and Δk2 are preset correction coefficients. Δk1 and Δk2 are adjusted according to a fixed ratio difference to modify the correction height and correction width or correction diameter. For example, H1' = 1.05 * H1 and B1' = 1.05 * B1. By gradually adjusting the correction coefficients Δk1 and Δk2, adjusting the cookware size, and calculating the angle of the air guide plate, the air curtain effect can be tested in stages, facilitating debugging and parameter iteration.

[0127] S550, Adjust the air guide plate to correct the included angle A′ with the included angle of the air curtain outlet.

[0128] Specifically, based on the calculated initial included angle parameters, the controller sends a control command to the air curtain structure 3 to drive the air guide plate 33 to rotate and adjust the air guide plate 33 to form a target correction included angle A′ with the air curtain outlet 312. If the smoke machine is still in the state of escaping smoke after correction, the correction coefficients Δk1 and Δk2 are adjusted until the smoke machine stops escaping smoke.

[0129] Based on the above embodiments, the embodiments of the present invention quantify the specific process of adjusting the angle of the air guide plate step by step, thereby improving the accuracy of angle adjustment.

[0130] Figure 12 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 12 Regarding the above embodiments and island-style smoke hoods, before "S140, control the air guide plate to open at the initial angle with the air curtain outlet," the following is also included:

[0131] Set the current operating setting of the range hood to the highest operating setting.

[0132] For details not covered in this embodiment, please refer to the previous embodiment.

[0133] like Figure 12 As shown, another control method for an island-style tobacco machine provided in this embodiment of the invention may include the following specific steps:

[0134] S610, Detect the structural parameters of the cookware.

[0135] S620. Calculate the initial angle between the air guide plate and the air curtain outlet based on the structural parameters of the cookware.

[0136] S630, Determine the current working position of the smoke hood as the highest working position.

[0137] The highest working level can be understood as the highest power level among the current working levels of the range hood structure.

[0138] Specifically, when the range hood is not operating at its highest setting, the power of the range hood can be increased by adjusting the setting upwards. Conversely, if the current smoke removal needs are still not met even after reaching the highest setting, the angle between the air guide plate 33 and the air curtain outlet 312 should be adjusted.

[0139] S640, control the air guide plate to open at the initial angle with the air curtain outlet.

[0140] S650. When there is smoke leakage in the structure of the range hood, increase the angle between the air guide plate and the air curtain outlet until the far end of the pot is lower than the extended plane of the air guide plate.

[0141] Based on the above embodiments, this invention introduces the concept of a maximum working level and provides a control logic that adjusts the angle between the air guide plate and the air curtain outlet only when the maximum working level still cannot meet the current smoke removal requirements.

[0142] Figure 13 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 13 For the above embodiments and island-style range hoods, before "S630, determine the current working position of the range hood structure as the highest working position", the following steps can be added:

[0143] Obtain the operating position of the range hood structure;

[0144] If there is smoke leakage from the range hood structure, gradually increase the operating level of the range hood structure until there is no smoke leakage or the highest operating level of the range hood structure is reached.

[0145] For details not covered in this embodiment, please refer to the previous embodiment.

[0146] like Figure 13 As shown, another control method for an island-style tobacco machine provided in this embodiment of the invention may include the following specific steps:

[0147] S710, Detect the structural parameters of the cookware.

[0148] S720. Calculate the initial angle between the air guide plate and the air curtain outlet based on the structural parameters of the cookware.

[0149] S730, obtain the working position of the smoke hood structure.

[0150] The operating modes of the range hood can be understood as multiple pre-set operating modes designed to adapt to the oil fume treatment needs of different cooking scenarios. Different operating modes have different smoke extraction capabilities.

[0151] Specifically, cookware has multiple operating states, corresponding to different operating levels of the range hood structure. The operating levels of the range hood structure are determined based on the operating state of the cookware. For example, the low level is suitable for cooking scenarios with less oil smoke, where the range hood fan speed is low and the suction power is moderate; the high level is suitable for scenarios with a large amount of oil smoke, where the range hood fan speed is high and the suction power is strong.

[0152] S740. When there is smoke leakage in the structure of the range hood, gradually increase the working level of the range hood structure until there is no smoke leakage or the highest working level of the range hood structure is reached.

[0153] Specifically, when the range hood is not at its highest operating setting, you can increase the power of the range hood by adjusting the setting upwards until the range hood stops escaping smoke.

[0154] For example, when the range hood is emitting smoke on the steaming / cooking setting, adjust the setting to the frying / deep-frying setting. If the smoke stops, stop the setting. If the smoke continues to escape, adjust the setting back to the stir-frying setting.

[0155] S750, Determine the current working position of the smoke hood structure as the highest working position.

[0156] S760, control the air guide vane to open at the initial angle with the air curtain outlet.

[0157] S770. When there is smoke leakage in the structure of the range hood, increase the angle between the air guide plate and the air curtain outlet until the far end of the pot is lower than the extended plane of the air guide plate.

[0158] Based on the above embodiments, this invention provides another control logic: when the highest working level is not reached and the current smoke removal needs cannot be met, the working level of the range hood is adjusted to meet the smoke removal needs.

[0159] Figure 14 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 14 Regarding the above embodiments and island-style range hoods, "S740, when there is smoke leakage from the range hood structure, gradually increase the operating level of the range hood structure until there is no smoke leakage or the highest operating level of the range hood structure is reached." This can be further refined as follows:

[0160] If the current working setting of the range hood is the steaming setting and there is smoke leakage, increase the working setting of the range hood to the frying setting.

[0161] If the current working setting of the range hood is the frying setting and there is smoke leakage, increase the working setting of the range hood to the stir-fry setting.

[0162] For details not covered in this embodiment, please refer to the previous embodiment.

[0163] like Figure 14 As shown, another control method for an island-style tobacco machine provided in this embodiment of the invention may include the following specific steps:

[0164] S810, Detect the structural parameters of the cookware.

[0165] S820. Calculate the initial angle between the air guide plate and the air curtain outlet based on the structural parameters of the cookware.

[0166] S830, obtain the working position of the smoke hood structure.

[0167] S840. When the current working position of the range hood is the steaming / cooking setting and there is smoke leakage from the range hood, increase the working position of the range hood to the frying / deep-frying setting.

[0168] Specifically, if the range hood is emitting smoke when in the steaming / cooking mode, it means that the current airflow is insufficient to effectively remove the fumes. In this case, you need to increase the operating speed to the frying / frying mode to increase the suction power and quickly remove the fumes.

[0169] S850: When the current working setting of the range hood is the frying setting and there is smoke leakage from the range hood, increase the working setting of the range hood to the stir-fry setting.

[0170] Specifically, if the range hood is still emitting smoke when in the frying mode, it indicates that the current airflow is insufficient to meet the demand for smoke extraction. In this case, it is necessary to further increase the operating speed to the stir-fry mode, using maximum suction power to quickly capture and expel a large amount of smoke.

[0171] S860, Determine the current working position of the smoke hood as the highest working position.

[0172] S870, control the air guide plate to open at the initial angle with the air curtain outlet.

[0173] S880. When there is smoke leakage in the structure of the range hood, increase the angle between the air guide plate and the air curtain outlet until the far end of the pot is lower than the extended plane of the air guide plate.

[0174] Based on the above embodiments, this invention refines the specific process of adjusting the range hood's operating speed to meet smoke removal requirements, dividing the range hood's operating speed into steaming, frying, and stir-frying speeds, and explaining the response logic when smoke escapes at different speeds.

[0175] Figure 15 This is a flowchart of another control method for an island-style smoke machine provided in an embodiment of the present invention, see reference. Figure 15 The technical solution of this invention is optimized based on the above solution, and the control method includes the following specific steps:

[0176] S910, turn on the range hood.

[0177] S920, select gear.

[0178] The range hood can be preset with three modes: high-power, strong, and weak, corresponding to the previously mentioned high-power, frying, and steaming modes, respectively. If the user selects the weak mode, S931 is executed; if the user selects the strong mode, S932 is executed; and if the user selects the high-power mode, S933 is executed.

[0179] S931, enter low gear.

[0180] After this step is completed, proceed to step S941.

[0181] S941. Determine if there is smoke:

[0182] If yes, proceed to step S932; otherwise, the process ends.

[0183] S932, enter high gear.

[0184] After this step is completed, proceed to step S942.

[0185] S942. Determine if there is smoke:

[0186] If yes, proceed to step S933; otherwise, the process ends.

[0187] S933, Enter the stir-fry section.

[0188] After this step is completed, proceed to step S943.

[0189] S943. Determine if there is smoke:

[0190] If yes, proceed to step S944; otherwise, the process ends.

[0191] S944. Obtain the width or diameter B0 and height H0 of the cooker.

[0192] After this step is completed, proceed to step S945.

[0193] S945. The required opening angle of the air curtain is calculated as A = arctan((H-H0) / (L+B0 / 2)).

[0194] Where H is the height of the air guide plate's rotating shaft, L is the horizontal distance between the air curtain outlet and the center of the cooking area in the island range hood, H0 is the height of the cookware, and B0 is the width or diameter of the cookware.

[0195] After this step is completed, proceed to step S946.

[0196] S946, after the baffle opens to angle A, the air curtain is activated.

[0197] After this step is completed, proceed to step S947.

[0198] S947. Determine if there is smoke:

[0199] If yes, proceed to step S948; otherwise, the process ends.

[0200] S948, Correct parameters: B1 = 1.05B0, H1 = 1.05H0.

[0201] Where H1 is the corrected height of the cookware, and B1 is the corrected width or corrected diameter of the cookware.

[0202] After this step is completed, proceed to step S949.

[0203] S949. The corrected air curtain opening angle is A' = arctan((H-H1) / (L+B1 / 2)).

[0204] Where H is the height of the air guide plate's rotation axis, L is the horizontal distance between the air curtain outlet and the center of the cooking area in the island range hood, H1 is the corrected height of the cookware, and B1 is the corrected width or corrected diameter of the cookware.

[0205] After this step is completed, proceed to step S950.

[0206] S950, determine whether the air curtain angle has reached its maximum.

[0207] If the air curtain angle has not reached its maximum, return to step S947; if the air curtain angle has reached its maximum, the process ends.

[0208] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A control method for an island-style smoking machine, characterized in that, The island-style smoke machine includes a smoke machine structure and an air curtain structure. The air curtain structure includes an air curtain outlet and an air guide plate. The rotation angle of the air guide plate is adjustable. The control method includes: Detect the structural parameters of the cookware; Based on the structural parameters of the cookware, calculate the initial angle between the air guide plate and the air curtain outlet; wherein, under the initial angle, the air guide plate satisfies that the far end point of the cookware is located on the extension plane of the air guide plate, and the far end point is the point on the cookware that is farthest from the air curtain outlet; The air guide plate is controlled to open at the initial angle relative to the air outlet of the air curtain; When smoke escapes from the structure of the range hood, the angle between the air guide plate and the air curtain outlet is increased until the far end of the cookware is lower than the extended plane of the air guide plate.

2. The control method according to claim 1, characterized in that, The structural parameters of the cookware include height H0 and width or diameter B0; Based on the structural parameters of the cookware, the initial angle between the air guide plate and the air curtain outlet is calculated, including: The initial angle A between the air guide plate and the air curtain outlet is calculated according to the formula A=arctan((H-H0) / (L+B0 / 2)); where H is the height of the rotation axis of the air guide plate and L is the horizontal distance between the air curtain outlet and the center of the cooking area in the island range hood.

3. The control method according to claim 2, characterized in that, When smoke leakage occurs in the structure of the range hood, the angle between the air guide plate and the air curtain outlet is increased until the far end of the cookware is lower than the extended plane of the air guide plate, including: When smoke escapes from the structure of the smoke hood, the angle between the air guide plate and the air curtain outlet is adjusted to the target angle A'; where A' = arctan((H-H1) / (L+B1 / 2)); H1 is the corrected height of the cookware, and B1 is the corrected width or corrected diameter of the cookware; H1 > H0, and / or, B1 > B0.

4. The control method according to claim 3, characterized in that, H1=1.05*H0, B1=1.05*B0.

5. The control method according to claim 2, characterized in that, When smoke leakage occurs in the structure of the range hood, the angle between the air guide plate and the air curtain outlet is increased until the far end of the cookware is lower than the extended plane of the air guide plate, including: When smoke escape occurs in the structure of the smoke hood, the angle between the air guide plate and the air curtain outlet is increased in stages until the smoke escape does not occur in the structure of the smoke hood or the angle between the air guide plate and the air curtain outlet reaches the maximum preset angle.

6. The control method according to claim 5, characterized in that, The step-by-step increase in the angle between the air guide plate and the air curtain outlet includes: The target corrected angle A' between the air guide plate and the air curtain outlet is calculated according to the formula A'=arctan((H-H1') / (L+B1' / 2)). Wherein, H1'=(1+Δk1)*H1, B1'=(1+Δk2)*B1; H1 is the original corrected height of the cookware before the current increase in the angle between the air guide plate and the air curtain outlet, and B1 is the original corrected width or corrected diameter of the cookware before the current increase in the angle between the air guide plate and the air curtain outlet; H1' is the target corrected height of the cookware when the angle between the air guide plate and the air curtain outlet is increased, and B1' is the target corrected width or corrected diameter of the cookware when the angle between the air guide plate and the air curtain outlet is increased; Δk1 and Δk2 are both preset correction coefficients. Adjust the air guide plate to the target correction angle A' so that the angle between it and the air curtain outlet is the same.

7. The control method according to claim 1, characterized in that, Before controlling the air guide plate to open at the initial angle relative to the air curtain outlet, the method further includes: The current operating setting of the smoke hood structure is determined to be the highest operating setting.

8. The control method according to claim 7, characterized in that, Before determining that the current working position of the smoke hood structure is the highest working position, the following steps are also included: Obtain the working position of the aforementioned smoke hood structure; When smoke is escaping from the smoke hood structure, gradually increase the operating level of the smoke hood structure until the smoke escapes from the smoke hood structure or the highest operating level of the smoke hood structure is reached.

9. The control method according to claim 8, characterized in that, The working modes of the range hood include steaming, frying, and stir-frying. When smoke leakage occurs in the smoke hood structure, the operating level of the smoke hood structure is gradually increased until smoke leakage ceases or the highest operating level of the smoke hood structure is reached, including: When the current working mode of the range hood structure is the steaming mode and the range hood structure is escaping smoke, the working mode of the range hood structure is increased to the frying mode. When the current working mode of the range hood is the frying mode and there is smoke leakage, the working mode of the range hood is increased to the stir-fry mode.

10. An island-style smoke machine, characterized in that, The island-style smoke machine includes a smoke machine structure and an air curtain structure. The air curtain structure includes an air curtain outlet and an air guide plate. The rotation angle of the air guide plate is adjustable. The island-style smoke machine is used to perform the control method of the island-style smoke machine as described in any one of claims 1-9.

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