A control method of an island smoke machine and an island smoke machine

Abstract

Embodiments of the present application disclose an island range hood control method and an island range hood. The island range hood comprises a hood structure and a wind curtain structure, and the angle of the air deflector in the wind curtain structure is adjustable. The control method comprises: obtaining the working gear of the hood structure; when the hood structure has a smoke leakage, controlling the air deflector to open at an initial angle with the wind curtain outlet; detecting the real-time temperature of the pot; calculating the smoke escape probability according to the real-time temperature of the pot and the initial angle at which the air deflector opens; and when the smoke escape probability exceeds a preset probability threshold, increasing the angle between the air deflector and the wind curtain outlet according to the smoke escape probability and the real-time temperature of the pot. The embodiments of the present application solve the problem of smoke leakage of the existing hood, realize active interception of the wind curtain in the smoke leakage state, improve the smoke suction effect of the hood, ensure the comfort of the user when working in the kitchen, and improve the user experience.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technology of range hood air curtain, in particular to a control method of island range hood and island range hood. BACKGROUND

[0002] Open kitchen is a popular trend in modern residential design, but its open structure also causes cooking oil fume to spread to adjacent functional areas, which continuously challenges air quality and living comfort.

[0003] To solve this problem, island range hood, through submersible installation and top negative pressure suction structure, has become the mainstream oil fume control scheme for open kitchen. To further improve the oil fume capture efficiency, the existing technology also forms a directional air flow barrier above the cooking operation surface to block the escape of oil fume and synergistically enhance the adsorption performance of the negative pressure area.

[0004] However, the control strategy of the air curtain range hood has significant limitations. In order to ensure the oil fume adsorption effect, the airflow angle and air volume are usually fixed parameters, which cannot be dynamically adjusted according to the working state of the range hood, resulting in the problem of oil fume escaping when the cooking state changes. SUMMARY

[0005] The present application provides a control method of island range hood and island range hood to solve the problem of oil fume escaping of existing range hood.

[0006] In a first aspect, embodiments of the present application provide a control method of island range hood. The island range hood includes a range hood structure and an air curtain structure, the air curtain structure includes an air curtain outlet and a deflector, and the deflector has an adjustable turning angle.

[0007] The control method includes:

[0008] obtaining the working gear of the range hood structure;

[0009] when the range hood structure has the problem of oil fume escaping, controlling the deflector to open at an initial angle with the air curtain outlet; wherein the initial angle is a preset angle between the deflector and the air curtain outlet corresponding to the current working gear of the range hood structure;

[0010] detecting the real-time temperature of the pot;

[0011] calculating the oil fume escape probability according to the real-time temperature of the pot and the initial angle at which the deflector is opened;

[0012] when the oil fume escape probability exceeds a preset probability threshold, increasing the angle between the deflector and the air curtain outlet according to the oil fume escape probability and the real-time temperature of the pot.

[0013] Optionally, before calculating the oil fume escape probability according to the real-time temperature of the pot and the initial angle at which the deflector is opened, it further includes:

[0014] acquire a standard temperature of the pot under the working gear of the current range hood structure;

[0015] calculate the oil fume escape probability according to the real-time temperature of the pot and the initial angle of opening of the air deflector, including:

[0016] calculate the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure;

[0017] calculate the oil fume escape probability according to the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure and the initial angle of opening of the air deflector.

[0018] Optionally, the oil fume escape probability is calculated according to the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure and the initial angle of opening of the air deflector, including:

[0019] the oil fume escape probability Pe is calculated according to the formula ; wherein, ΔT is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure, A1 is the initial angle of opening of the air deflector, k and C are both preset constants.

[0020] Optionally, when the oil fume escape probability exceeds a preset probability threshold, the included angle between the air deflector and the air curtain outlet is increased according to the oil fume escape probability and the real-time temperature of the pot, including:

[0021] when the oil fume escape probability exceeds a preset probability threshold, the included angle increasing amount A' between the air deflector and the air curtain outlet is calculated according to the oil fume escape probability and the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure;

[0022] the included angle between the air deflector and the air curtain outlet is adjusted to a target angle A 11 ; wherein, 11 A=A1+A'; wherein, A1 is the initial angle of opening of the air deflector.

[0023] Optionally, when the oil fume escape probability exceeds a preset probability threshold, the included angle increasing amount A' between the air deflector and the air curtain outlet is calculated according to the oil fume escape probability and the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure, including:

[0024] when the oil fume escape probability exceeds a preset probability threshold,

[0025] the included angle increasing amount A' between the air deflector and the air curtain outlet is calculated according to the formula , the increase A' of the included angle between the deflector and the air curtain outlet is calculated; wherein, Pe is the oil fume escape probability, △T is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure, k and C are both preset constants, and B is a preset constant corresponding to the working gear of the current range hood structure.

[0026] Optionally, the working gear of the range hood structure includes a stir-frying gear, a frying gear and a steaming gear.

[0027] When the working gear of the range hood structure is the stir-frying gear, B=B1; when the working gear of the range hood structure is the frying gear, B=B2; and when the working gear of the range hood structure is the steaming gear, B=B3.

[0028] Optionally, B1>B2>B3.

[0029] Optionally, B1=0.3, B2=0.2, and B3=0.1.

[0030] Optionally, k=0.1 and C=15.

[0031] Optionally, the working gear of the range hood structure includes a stir-frying gear, a frying gear and a steaming gear.

[0032] When the working gear of the range hood structure is the stir-frying gear, the initial angle is A2.

[0033] When the working gear of the range hood structure is the frying gear, the initial angle is A3.

[0034] When the working gear of the range hood structure is the steaming gear, the initial angle is A4.

[0035] Optionally, A2>A3>A4.

[0036] In a second aspect, the embodiments of the present application also provide an island range hood, which comprises a range hood structure and an air curtain structure, the air curtain structure comprising an air curtain outlet and a deflector, and the deflection angle of the deflector is adjustable; the island range hood is used to execute the control method of the island range hood according to any one of the first aspect.

[0037] The embodiment of the application discloses an island range hood control method and an island range hood. The control method comprises the following steps: acquiring a working gear of the range hood structure, and providing a basis for subsequent wind curtain angle adjustment. When the range hood structure has a smoke leakage, the deflector is opened according to an initial angle with the wind curtain outlet, a basic wind curtain is formed, and a blocking barrier for oil fume is initially constructed, so that the wind curtain state is adjusted quickly. The real-time temperature of the pot is detected, the oil fume escape probability is calculated according to the real-time temperature of the pot and the initial angle of the deflector, and the smoke leakage risk is quantified. When the oil fume escape probability exceeds a preset probability threshold, the angle between the deflector and the wind curtain outlet is increased according to the oil fume escape probability and the real-time temperature of the pot, the smoke leakage problem caused by the change of the cooking condition or the insufficient current running state of the range hood is compensated, the wind curtain is better adapted to different cooking conditions and range hood working states. The embodiment of the application solves the smoke leakage problem of the existing range hood, realizes active interception of the wind curtain in the smoke leakage state, improves the oil fume suction effect of the range hood, guarantees the comfort of the user in the kitchen, and improves the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 A structural schematic diagram of an island range hood is provided for the embodiment of the application.

[0039] Figure 2 A wind curtain air flow schematic diagram formed by an island range hood is provided for the embodiment of the application.

[0040] Figure 3 An air flow schematic diagram inside an island range hood is provided for the embodiment of the application.

[0041] Figure 4 A structural schematic diagram of a wind curtain structure is provided for the embodiment of the application.

[0042] Figure 5 A structural schematic diagram of a rotating structure is provided for the embodiment of the application.

[0043] Figure 6 A flowchart of an island range hood control method is provided for the embodiment of the application.

[0044] Figure 7 A flowchart of another island range hood control method is provided for the embodiment of the application.

[0045] Figure 8 A flowchart of still another island range hood control method is provided for the embodiment of the application.

[0046] Figure 9 A flowchart of still another island range hood control method is provided for the embodiment of the application.

[0047] Figure 10is a flow chart of another control method of the island cooking machine provided by the embodiment of the present application;

[0048] In the drawings:

[0049] 1, table top; 11, cooking machine air outlet; 2, smoke collection cavity; 21, cooking machine smoke inlet; 22, cover plate; 23, smoke collection cavity accommodating groove; 3, air curtain structure; 31, air curtain shell; 311, air curtain air inlet; 312, air curtain air outlet; 32, air curtain fan; 33, air deflector; 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, bolt; 4, infrared distance measuring module; 6, cooking machine case; 61, air duct; 62, cooking machine fan; 7, electromagnetic stove; 8, lifting mechanism. DETAILED DESCRIPTION

[0050] The present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for the purpose of interpretation of the present application and are not intended to limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the purpose of description, not all the structures.

[0051] The terms used in the embodiments of the present application are merely for the purpose of describing specific embodiments and are not intended to limit the present application. It should be noted that the orientation terms such as "upper", "lower", "left", "right" and the like described in the embodiments of the present application are described at the angle shown in the drawings and should not be understood as limiting the embodiments of the present application. In addition, it should be understood in the context that when referring to one element being formed "on" or "under" another element, it can be directly formed "on" or "under" another element, or indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second" and the like are merely for the purpose of description and do not represent any order, quantity or importance, but are only used to distinguish different components. The specific meanings of the above terms in the present application can be understood by the person skilled in the art according to the specific circumstances.

[0052] The term "including" and its variants used in the present application are open inclusion, i.e. "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment".

[0053] It should be noted that the concepts of "first", "second" and the like mentioned in the present application are only used to distinguish the corresponding content and are not intended to limit the order or interdependent relationship.

[0054] It should be noted that the modification of "one" and "multiple" mentioned in the present application is illustrative but not restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0055] The island range hood provided by the embodiment of the present application, Figure 1 The structure diagram of the island range hood provided by the embodiment of the present application, Figure 2 The air flow diagram of the wind curtain formed by the island range hood provided by the embodiment of the present application, Figure 3 The air flow diagram of the island range hood provided by the embodiment of the present application, Figure 4 The structure diagram of the wind curtain structure provided by the embodiment of the present application, Figure 5 The structure diagram of the rotating structure provided by the embodiment of the present application. In the embodiment provided by the present application, optionally, the first direction X1 and the second direction X2 are consistent, and the third direction Y is perpendicular to the second direction X2.

[0056] As Figures 1-5 shown, the island range hood includes a range hood structure and a wind curtain structure 3, the wind curtain structure 3 includes a wind curtain air outlet 312 and a guide plate 33, and the turning angle of the guide plate 33 is adjustable.

[0057] Specifically, the range hood structure includes: a table top 1, the table top 1 is provided with a cooking area, and the cooking area is used for placing a cooking utensil. A smoke collecting cavity 2 is arranged on the table top 1, and the smoke collecting cavity 2 can be of an embedded structure. The smoke collecting cavity 2 is raised when working and exposes a range hood smoke inlet 21, and the range hood smoke inlet 21 faces the cooking area of the table top 1. The range hood smoke inlet 21 is used for oil fume adsorption through negative pressure to improve the oil fume condition in the kitchen.

[0058] The wind curtain structure 3 includes: a wind curtain shell 31, a wind curtain fan 32, a guide plate 33 and a rotating mechanism 34. The wind curtain structure 3 is arranged adjacent to the range hood smoke inlet 21, the wind curtain fan 32 is arranged inside the wind curtain shell 31, the wind curtain shell 31 is provided with a wind curtain air inlet 311 and a wind curtain air outlet 312, the wind curtain air outlet 312 faces the cooking area of the table top 1, and the turning angle of the guide plate 33 of the wind curtain air outlet 312 is kept between 0-90°.

[0059] When the wind curtain fan 32 is started, the wind curtain air outlet 312 sprays air flow above the cooking area of the table top 1 to form a wind curtain, covering the cooking area to avoid the oil fume generated in the cooking area from escaping in the kitchen. The guide plate 33 is rotatably connected to the edge of the wind curtain air outlet 312 through the rotating mechanism 34, and the turning angle of the guide plate 33 is adjustable. The guide plate 33 is used for adjusting the air outlet angle of the wind curtain fan 32 to control the air outlet angle of the wind curtain air flow, so as to change the action direction and range of the wind curtain.

[0060] For example, in the use process of the embodiment of the present application, when the user places the cooking utensil on the cooking area of the countertop 1 and starts the electromagnetic cooker 7, at this time, the smoke collecting cavity 2 hidden in the smoke machine cabinet 6 starts to work under the drive of the lifting mechanism 8, the top cover plate 22 gradually separates from the countertop 1, the smoke collecting cavity 2 rises from the smoke collecting cavity accommodating groove 23, until the smoke machine smoke inlet 21 is completely exposed above the cooking area, and the smoke machine enters the working state.

[0061] At the same time, the infrared distance measuring module 4 installed on the smoke collecting cavity 2 or the air curtain structure 3 is started, emits infrared rays to detect the horizontal distance between the far end point of the cooking utensil and the smoke collecting cavity 2, and the detection data is transmitted to the controller. The controller obtains the gear signal from the electromagnetic cooker 7, and generates the control instruction of the air curtain structure 3 in combination with the infrared distance measuring data.

[0062] The controller controls the air deflector 33 in the air curtain structure 3 to rotate upward, and stops rotating after ensuring that the air curtain covers the pot. At this time, the external air enters the air curtain shell 31 from the air curtain air inlet 311 on the side of the air curtain structure 3 away from the smoke collecting cavity 2, is accelerated by the air curtain fan 32, and is sprayed from the air curtain air outlet 312. Based on the Coanda effect, the airflow flows close to the air deflector 33, and forms a three-sided closed semi-enclosed air curtain composed of the upper air curtain and the two side air curtains above the cooking area. The oil fume in the air curtain is sucked into the smoke machine smoke inlet 21 of the smoke collecting cavity 2. Under the action of the smoke machine fan 62, the oil fume flows along the air duct 61 to the smoke machine air outlet 11, is adsorbed and purified when flowing through the filtering device (such as an oil screen, activated carbon, etc.) in the air duct 61, and finally the clean airflow is discharged from the smoke machine air outlet 11 on the side of the countertop 1 away from the cooking area.

[0063] After the cooking is completed, the user turns off the electromagnetic cooker 7, the air deflector 33 of the air curtain structure 3 returns to the initial closed state, the smoke collecting cavity 2 slowly descends under the action of the lifting mechanism 8, the top cover plate 22 is flush with the countertop 1, and the smoke machine enters the standby mode.

[0064] For the island smoke machine of the above-mentioned embodiment, the embodiment of the present application further provides a control method of the island smoke machine. Figure 6 is a flow chart of the control method of the island smoke machine provided by the embodiment of the present application, referring to Figure 6 The adjusting method comprises the following steps.

[0065] S110, obtaining the working gear of the smoke machine structure.

[0066] The working gear of the smoke machine structure can be understood as a plurality of running modes preset by the island smoke machine to adapt to the oil fume treatment requirements in different cooking scenes. Different working gears include combinations of different core parameters such as the rotating speed of the air curtain fan 32, the angle of the air deflector 33, and the air curtain intensity.

[0067] Specifically, the pot includes multiple working states, and corresponding to different working gears of the smoke machine structure, the working gears of the smoke machine structure are determined based on the working state of the pot. For example, the low gear is suitable for cooking scenes with less oil smoke, and the running speed of the air curtain fan 33 is low and the noise is small; the high gear is suitable for scenes with large amount of oil smoke, and the speed of the air curtain fan 32 is high and the angle of the air deflector 33 is larger.

[0068] S120, when the smoke machine structure exists the smoke running condition, the air deflector is opened according to the initial angle with the air curtain air outlet.

[0069] Among them, the preset initial angle can be understood as the fixed angle between the air deflector 33 and the air curtain air outlet 312 before the island smoke machine leaves the factory, which is set according to the characteristics of the smoke machine structure, the rising rule of oil smoke in common cooking scenes and other factors, and is used to quickly build a basic air curtain when the smoke machine runs.

[0070] Specifically, before obtaining the real-time temperature of the pot, the pre-starting mechanism is adopted because the smoke machine cannot determine whether the current smoke running condition is serious. When pre-starting, the smoke machine first controls the air deflector 33 to open according to the preset initial angle with the air curtain air outlet 312, and preliminarily forms an air curtain to reduce the disordered diffusion of oil smoke. Compared with starting after obtaining the specific smoke running condition, the starting speed is faster.

[0071] S130, detecting the real-time temperature of the pot.

[0072] Among them, the real-time temperature can be understood as the instantaneous temperature value dynamically changing with time in the cooking process on the surface of the pot or in the cooking area.

[0073] Specifically, a temperature sensor can be arranged on the shell of the smoke machine towards the pot or the cooking area to monitor the pot temperature in real time and further obtain the cooking condition.

[0074] S140, calculating the oil smoke escape probability according to the real-time temperature of the pot and the initial angle of the air deflector opening.

[0075] Among them, the oil smoke escape probability can be understood as the proportion of oil smoke that is not effectively captured by the smoke machine and diffuses into the environment where the smoke machine is located under certain cooking conditions (such as pot temperature, air deflector angle, environmental wind speed, etc.).

[0076] Specifically, the relationship between the real-time temperature and the initial angle of the air deflector 33 opening and the oil smoke escape probability is preset in the smoke machine controller. This relationship can be obtained by fixing other variables, changing the temperature and the angle of the air deflector, and recording the number of oil smoke escape in the controllable kitchen environment.

[0077] S150, when the oil smoke escape probability exceeds the preset probability threshold, increasing the angle between the air deflector and the air curtain air outlet according to the oil smoke escape probability and the real-time temperature of the pot.

[0078] The preset probability threshold can be understood as a warning line for the risk of oil fume escape, used to determine whether the air guide plate angle adjustment mechanism needs to be triggered.

[0079] Specifically, the larger the angle between the air guide plate 33 and the air curtain outlet 312, the wider the air curtain coverage and the stronger the interception capability of diffused oil fumes. When oil fume escape is confirmed, the probability of oil fume escape is continuously monitored. When the probability of oil fume escape exceeds a preset probability threshold, it can be considered that oil fume dispersion has affected the user experience, and it is necessary to increase the angle between the air guide plate 33 and the air curtain outlet 312 to intervene in oil fume escape. The size of the adjustment angle can be determined based on the relationship between the real-time temperature preset in the range hood controller and the opening angle of the air guide plate 33 and the probability of oil fume escape.

[0080] This invention discloses a control method and an island-style range hood. The control method includes: acquiring the operating position of the range hood structure to prepare for adjusting the air curtain's working state to match the current cooking conditions. When smoke escapes from the range hood structure, the air guide plate is controlled to open at an initial angle with the air curtain outlet, forming a basic air curtain and initially constructing a barrier against cooking fumes, facilitating subsequent rapid adjustment of the air curtain state. The real-time temperature of the cookware is detected, and based on the real-time temperature of the cookware and the initial opening angle of the air guide plate, the probability of smoke escape is calculated, thereby determining whether to trigger the air guide plate angle adjustment mechanism. When the probability of smoke escape exceeds a preset probability threshold, the angle between the air guide plate and the air curtain outlet is increased based on the smoke escape probability and the real-time temperature of the cookware to intervene in smoke escape. The air curtain shape is dynamically optimized when the risk of smoke escape increases, balancing smoke capture efficiency and airflow stability under different temperature scenarios, allowing the air curtain to better adapt to different cooking conditions and the range hood's operating state. The embodiments of the present invention solve the problem of smoke leakage in existing range hoods, realize the active interception of smoke by the air curtain in the case of smoke leakage, improve the smoke extraction effect of the range hood, ensure the comfort of users when working in the kitchen, and enhance the user experience.

[0081] In an optional embodiment, the operating modes of the range hood structure include a stir-fry mode, a deep-fry mode, and a steaming mode;

[0082] When the range hood is in the stir-fry mode, the initial angle is A2.

[0083] When the working setting of the range hood is the frying setting, the initial angle is A3.

[0084] When the range hood is in the steaming / cooking mode, the initial angle is A4.

[0085] Wherein, A2>A3>A4, the explosion frying gear, the frying gear and the steaming gear can be understood as preset working gears in the range hood controller. For example, the explosion frying gear, the frying gear and the steaming gear can be divided by the oil fume generation rate, the preset oil fume generation rate interval corresponding to the explosion frying gear and the frying gear is divided by the first oil fume generation rate threshold C1 to form, the oil fume generation rate interval corresponding to the frying gear and the steaming gear is divided by the second oil fume generation rate threshold C2 to form. Wherein, C1>C2, in a specific embodiment, C1=80, C2=50.

[0086] Figure 7 is the flow chart of another control method of the island range hood provided by the embodiment of the application, referring to Figure 7 , for the above-mentioned embodiment and the island range hood, before "S140, calculate the oil fume escape probability according to the real-time temperature of the pot and the initial angle of the opening of the guide vane.", it also includes:

[0087] acquire the standard temperature of the pot under the working gear of the current range hood structure

[0088] "S140, calculate the oil fume escape probability according to the real-time temperature of the pot and the initial angle of the opening of the guide vane." can be specifically refined as:

[0089] calculate the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure;

[0090] calculate the oil fume escape probability according to the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure and the initial angle of the opening of the guide vane.

[0091] The details of the embodiment have not been described in detail, please refer to the previous embodiment.

[0092] As Figure 7 shown, the control method of another island range hood provided by the embodiment of the application can include the following specific steps:

[0093] S210, acquire the working gear of the range hood structure.

[0094] S220, when the range hood structure exists the oil fume running condition, control the guide vane to open according to the initial angle of the included angle with the air curtain air outlet.

[0095] S230, detect the real-time temperature of the pot.

[0096] S240, acquire the standard temperature of the pot under the working gear of the current range hood structure.

[0097] Specifically, the range hood structure different working gears are provided with corresponding standard temperatures, under different working gears, the oil fume generation amount is different.

[0098] For example, the standard temperature of the high-temperature frying mode is the highest, the oil fume amount is large, and the generation speed is fast, the standard temperature of the frying mode is relatively high, the oil fume amount is medium but the duration is long. Similarly, the temperature of the steaming mode is relatively the lowest, and there is almost no oil fume under normal working conditions.

[0099] S250, calculate the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working mode of the current range hood structure.

[0100] Specifically, the real-time temperature of the pot in the cooking process cannot be consistent with the standard temperature of the pot under the working mode of the current range hood structure, so the temperature difference between the two is calculated to indicate the degree of deviation of the actual cooking scene from the default design of the range hood, and to prepare for subsequent calculation of the oil fume escape probability.

[0101] S260, calculate the oil fume escape probability according to the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working mode of the current range hood structure and the initial angle of the deflector.

[0102] Specifically, the oil fume escape probability under the current cooking scene is quantified by the two variables of the temperature difference and the initial angle of the deflector, which provides data support for the dynamic adjustment of the range hood. It can be understood that the smaller the temperature difference, the smaller the oil fume escape probability under the current cooking scene, the larger the angle of the deflector 33 opening, the larger the coverage range of the air curtain, and the smaller the probability of oil fume escape.

[0103] S270, when the oil fume escape probability exceeds the preset probability threshold, increase the included angle between the deflector and the air outlet of the air curtain according to the oil fume escape probability and the real-time temperature of the pot.

[0104] The embodiment of the application calculates the temperature difference between the real-time temperature of the pot and the standard temperature of the working mode, judges the degree of deviation of the actual cooking from the default design of the range hood, and finally refines the calculation of the oil fume escape probability by combining the temperature difference and the initial angle of the deflector, which provides accurate basis for the dynamic adjustment of the range hood.

[0105] In an optional embodiment, "S260, calculate the oil fume escape probability according to the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working mode of the current range hood structure and the initial angle of the deflector.", comprising:

[0106] According to the formula , the oil fume escape probability Pe is calculated.

[0107] Wherein, △T is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working mode of the current range hood structure, A1 is the initial angle of the deflector 33 opening, k and C are both preset constants.

[0108] Specifically, Pe represents the oil fume escape probability, and the value range is between 0 and 1. The value closer to 0 indicates that the oil fume escape probability is lower, and the value closer to 1 indicates that the oil fume escape probability is higher. ΔT is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure. It reflects the deviation degree of the actual cooking temperature from the standard working condition preset by the range hood, and the greater the absolute value of ΔT, the greater the difference between the actual cooking scene and the default design of the range hood, and the higher the possibility of oil fume escape. A1 is the initial angle of the opening of the air deflector 33, and the air deflector angle affects the coverage range and airflow direction of the air curtain, and then affects the interception effect on the oil fume. By calculating sinA1, the angle information can be converted into a numerical value to participate in the quantification of the oil fume escape probability. K is a preset constant for adjusting the influence weight of each term on the oil fume escape probability in the formula, and has different k in different gears to adapt to the regularity of oil fume generation in different gears. Similarly, C is an adjustment offset, and has different C in different gears.

[0109] Figure 8 is a flow chart of another control method of an island range hood provided by an embodiment of the application, referring to Figure 8 , for the above-mentioned embodiments and island range hoods, “S270, when the oil fume escape probability exceeds the preset probability threshold, increasing the included angle between the air deflector and the air curtain outlet according to the oil fume escape probability and the real-time temperature of the pot.” can be specifically refined as:

[0110] When the oil fume escape probability exceeds the preset probability threshold, the included angle between the air deflector and the air curtain outlet is increased by A' according to the oil fume escape probability and the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure.

[0111] Adjusting the included angle between the air deflector and the air curtain outlet to the target angle A 11 .

[0112] The details of the present embodiment have been described above.

[0113] As shown in Figure 8 , another control method of an island range hood provided by an embodiment of the application can include the following specific steps:

[0114] S310, acquiring the working gear of the range hood structure.

[0115] S320, when the range hood structure has a smoke running condition, controlling the air deflector to open at an initial angle with the air curtain outlet.

[0116] S330, detecting the real-time temperature of the pot.

[0117] S340, acquiring the standard temperature of the pot under the working gear of the current range hood structure.

[0118] S350, calculate the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure.

[0119] S360, according to the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure and the initial angle of the deflector, calculate the oil fume escape probability.

[0120] S370, when the oil fume escape probability exceeds the preset probability threshold, according to the oil fume escape probability and the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure, calculate the angle increase A' of the deflector and the air curtain outlet.

[0121] Specifically, by means of the temperature difference and the initial angle of the deflector, the oil fume escape probability under the current cooking scene can be quantified. When the oil fume escape probability exceeds the preset probability threshold, it indicates that the oil fume escape has affected the user's experience. At this time, the angle increase A' of the deflector 33 and the air curtain outlet 312 can be calculated according to the oil fume escape probability and the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure, which provides a quantitative basis for further adjusting the deflector angle to reduce oil fume escape.

[0122] S380, adjust the angle of the deflector and the air curtain outlet to the target angle A 11 .

[0123] Wherein, A 11 =A1+A', A1 is the initial angle of the deflector opening.

[0124] Specifically, the angle increase of the deflector 33 and the air curtain outlet 312, combined with the initial angle A1, determines the target angle A 11 and adjusts it to the angle suitable for the current range hood environment, so as to enhance the interception effect of oil fume and reduce oil fume escape.

[0125] The embodiment of the application provides an accurate quantitative basis for the adjustment of the deflector angle by calculating the angle increase A'. According to A' and the initial angle, the target angle A 11 is determined and adjusted, which can accurately adjust the deflector to the adaptive angle, enhance the interception effect of oil fume and reduce escape.

[0126] Figure 9 is another flowchart of the control method of the island range hood provided by the embodiment of the application, which is referred to Figure 9, for the above-mentioned embodiments and island range hood, "S370, when the oil fume escape probability exceeds the preset probability threshold, the angle increase A' of the deflector and the air curtain outlet is calculated according to the oil fume escape probability, the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure" can be specifically refined as:

[0127] When the oil fume escape probability exceeds the preset probability threshold, the angle increase A' of the deflector and the air curtain outlet is calculated according to the formula ; wherein Pe is the oil fume escape probability, ΔT is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure, k and C are both preset constants, and B is a preset constant corresponding to the working gear of the current range hood structure.

[0128] The details of the present embodiment not yet described can refer to the previous embodiment.

[0129] As shown in Figure 9 , another control method of an island range hood provided by the embodiment of the present application can include the following specific steps:

[0130] S410, obtaining the working gear of the range hood structure.

[0131] S420, when the oil fume escape probability exceeds the preset probability threshold, the angle increase A' of the deflector and the air curtain outlet is calculated according to the formula

[0132] S430, detecting the real-time temperature of the pot.

[0133] S440, obtaining the standard temperature of the pot under the working gear of the current range hood structure.

[0134] S450, calculating the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure.

[0135] S460, calculating the oil fume escape probability according to the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure and the initial angle of the deflector opening.

[0136] S470, when the oil fume escape probability exceeds the preset probability threshold, the angle increase A' of the deflector and the air curtain outlet is calculated according to the formula

[0137] ; wherein Pe is the oil fume escape probability, ΔT is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure, k and C are both preset constants, and B is a preset constant corresponding to the working gear of the current range hood structure.

[0138] ​Specifically, Pe represents the oil fume escape probability, and the value range is between 0 and 1. The value closer to 0 indicates that the oil fume escape probability is lower, and the value closer to 1 indicates that the oil fume escape probability is higher. Delta T is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the working gear of the current range hood structure. It reflects the deviation degree of the actual cooking temperature from the standard working condition preset by the range hood. The greater the absolute value of delta T, the greater the difference between the actual cooking scene and the default design of the range hood, and the higher the possibility of oil fume escape. K is a preset constant for adjusting the influence weight of each term in the formula on the oil fume escape probability. Different k is used in different gears to adapt to the regularity of oil fume generation in different gears. C is an adjustment offset, and different C is used in different gears. Similarly, B is a preset constant corresponding to the working gear of the current range hood structure, which is used to further adjust the calculation result of the angle increase according to the working gear of the range hood, so that the adjustment is more suitable for different working modes. In different working gears, the angle increase is the same, and the temperature difference is the same, but the oil fume escape probability changes.

[0139] For example, the oil fume amount in the explosive frying gear is large and generated quickly, and the oil fume amount in the frying gear is medium but the duration is long, so the B corresponding to the explosive frying gear is larger, and then the angle adjustment range of the explosive frying gear is larger and more sensitive, so as to adapt to the faster oil fume generation rate.

[0140] S480, adjust the angle between the deflector and the air curtain outlet to the target angle A 11 . Wherein, A 11 =A1+A', A1 is the initial angle of the deflector opening.

[0141] The embodiment of the application further quantifies the deflector angle adjustment mode on the basis of the above-mentioned embodiment, combines the current pot temperature and oil fume escape probability calculation, realizes the dynamic matching of the range hood gear and the air curtain form, forms a closed-loop control of detection-calculation-adjustment, quickly optimizes the air curtain coverage range when the oil fume escapes, and improves the oil fume capture efficiency.

[0142] In an optional embodiment, the working gears of the range hood structure include an explosive frying gear, a frying gear and a steaming and boiling gear;

[0143] When the working gear of the range hood structure is the explosive frying gear, B=B1; when the working gear of the range hood structure is the frying gear, B=B2; and when the working gear of the range hood structure is the steaming and boiling gear, B=B3;

[0144] Wherein, B1>B2>B3, B1, B2 and B3 are preset coefficients, which can be understood as adjustment coefficients optimized by experimental data and user use scenarios, and are used to quantify the influence weight of the deviation of the oil fume generation rate under the steaming and boiling gear on the angle adjustment range of the deflector 33.

[0145] Specifically, based on the characteristics of oil fume at different cooking gears, the oil fume amount at the stir-frying gear is large and generated quickly, and the oil fume amount at the frying gear is medium but lasts for a long time. By setting B1>B2, the angle adjustment range of the stir-frying gear is larger and more sensitive. Both B1 and B2 reflect that the larger the oil fume deviation, the larger the angle adjustment, but the unit deviation adjustment of the stir-frying gear is higher. Similarly, there is almost no oil fume under normal working conditions of the steaming gear, and the smoke running is usually an occasional abnormality (such as burning) and usually has a small impact, so B2>B3, and the adjustment of the deflector 33 for the steaming gear is more conservative.

[0146] In an optional embodiment, B1=0.3, B2=0.2, and B3=0.1.

[0147] Specifically, different hoods work at different gears due to different cooking characteristics, and correspond to different coefficients.

[0148] Under the stir-frying gear, the included angle between the deflector 33 and the air curtain outlet 312 to the target angle is:

[0149] The oil fume amount is large and generated quickly during stir-frying, and the higher coefficient 0.3 means that when the oil fume escape probability exceeds the threshold, the deflector angle will be adjusted more significantly to enhance the interception of large and rapidly generated oil fume.

[0150] Under the frying gear, the included angle between the deflector 33 and the air curtain outlet 312 to the target angle is:

[0151] The oil fume amount is medium but lasts for a long time during frying, and the coefficient 0.2 makes the angle adjustment range moderate, taking into account the capture of continuous oil fume and not excessive adjustment.

[0152] Under the steaming gear, the included angle between the deflector 33 and the air curtain outlet 312 to the target angle is:

[0153] The oil fume amount is small under normal working conditions of steaming, and the coefficient 0.1 represents small-angle adjustment to avoid unnecessary adjustment, save energy, and maintain the appropriate working state of the hood.

[0154] In an optional embodiment, k=0.1 and C=15.

[0155] Specifically, k is a preset constant for adjusting the influence weight of each term in the formula on the oil fume escape probability, and has different k at different gears to adapt to the rules of oil fume generation at different gears. C is an adjustment offset, and has different C at different gears. In the case of k=0.1 and C=15, the included angle between the deflector 33 and the air curtain outlet 312 to the target angle is:

[0156] .

[0157] Figure 10 is a flow chart of another control method of an island range hood provided by an embodiment of the present application, referring to Figure 10 , the technical solution of the embodiment of the present application is optimized on the basis of the above-mentioned solution, and the control method comprises the following specific steps:

[0158] S501, electromagnetic stove starts.

[0159] S502, the range hood is turned on.

[0160] S503, the temperature T of the cooking area is monitored.

[0161] S504, it is judged whether T is greater than or equal to TC3:

[0162] Wherein, TC3 corresponds to the minimum temperature of the cooking area in the explosive frying gear; wherein, the range hood can preset the explosive frying gear, which corresponds to the explosive frying gear in the foregoing.

[0163] If yes, step S5041 is executed;

[0164] If no, step S505 is executed.

[0165] S5041, enter the explosive frying gear.

[0166] After this step is completed, step S5042 is executed.

[0167] S5042, the air curtain is turned on, and the air curtain angle A1=30°.

[0168] After this step is completed, step S5043 is executed.

[0169] S5043, it is judged whether the smoke runs:

[0170] If yes, step S5044 is executed;

[0171] If no, the flow ends.

[0172] S5044, if the smoke runs, the oil fume escape probability Pe is calculated.

[0173] After this step is completed, step S5045 is executed.

[0174] S5045, it is judged whether Pe is greater than 0.05:

[0175] If yes, step S5046 is executed;

[0176] If no, step S503 is executed.

[0177] S5046, if Pe is greater than 0.05, the air curtain angle is corrected according to formula (3).

[0178] Wherein, formula (3): , wherein A1 is an initial angle at which the air deflector 33 is opened, A 11 is a target angle of the air deflector 33 and the air curtain outlet 312, the oil fume escape probability is Pe, and k and C are both preset constants;

[0179] After this step is completed, the process ends.

[0180] S505, determine whether T is greater than or equal to TC2:

[0181] TC2 corresponds to the minimum temperature of the cooking area in the strong mode; the range hood can also be preset in the strong mode, corresponding to the frying mode described above.

[0182] If yes, execute step S5051;

[0183] If no, execute step S506.

[0184] S5051, enter the strong mode.

[0185] After this step is completed, execute step S5052.

[0186] S5052, open the air curtain, and the air curtain angle A2 = 45°.

[0187] After this step is completed, execute step S5053.

[0188] S5053, determine whether the oil fume escapes:

[0189] If yes, execute step S5054;

[0190] If no, the process ends.

[0191] S5054, if the oil fume escapes, calculate the oil fume escape probability Pe.

[0192] After this step is completed, execute step S5055.

[0193] S5055, determine whether Pe is greater than 0.05:

[0194] If yes, execute step S5056;

[0195] If no, execute step S503.

[0196] S5056, if Pe is greater than 0.05, correct the air curtain angle according to formula (2).

[0197] Formula (2): , wherein A1 is an initial angle at which the air deflector 33 is opened, A 11 is a target angle of the air deflector 33 and the air curtain outlet 312, the oil fume escape probability is Pe, and k and C are both preset constants;

[0198] After this step is completed, the process ends.

[0199] S506, judge whether T is greater than or equal to TC1:

[0200] TC1 corresponds to the minimum temperature of the cooking area in the weak gear; the smoke machine can also be pre-set in the weak gear, corresponding to the cooking gear mentioned above.

[0201] If yes, step S5061 is executed;

[0202] If no, the process ends.

[0203] S5061, enter the weak gear.

[0204] After this step is completed, step S5062 is executed.

[0205] S5062, open the air curtain, and the air curtain angle A3=60°.

[0206] After this step is completed, step S5063 is executed.

[0207] S5063, judge whether the smoke runs:

[0208] If yes, step S5064 is executed;

[0209] If no, the process ends.

[0210] S5064, if the smoke runs, calculate the oil fume escape probability Pe.

[0211] After this step is completed, step S5065 is executed.

[0212] S5065, judge whether Pe is greater than 0.05:

[0213] If yes, step S5066 is executed;

[0214] If no, step S503 is executed.

[0215] S5066, if Pe is greater than 0.05, correct the air curtain angle according to formula (1).

[0216] Formula (1): , in the formula, A1 is the initial angle of the air deflector 33 opening, A 11 is the target angle of the air deflector 33 and the air curtain air outlet 312, the oil fume escape probability is Pe, and k and C are both preset constants;

[0217] After this step is completed, the process ends.

[0218] Note that the above merely describes preferred embodiments of the present application and the principles of the technology applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, modifications, combinations and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A control method of an island smoker, characterized by, The island range hood comprises a range hood structure and a wind curtain structure, the wind curtain structure comprises a wind curtain air outlet and a guide vane, and the turning angle of the guide vane is adjustable; The control method comprises: obtaining the working gear of the range hood structure; when the range hood structure has a smoke leakage condition, controlling the guide vane to open at an initial angle with the wind curtain air outlet; wherein the initial angle is a preset angle between the guide vane and the wind curtain air outlet corresponding to the current working gear of the range hood structure; detecting the real-time temperature of the pot; calculating the oil fume escape probability according to the real-time temperature of the pot and the initial angle at which the guide vane opens; when the oil fume escape probability exceeds a preset probability threshold, increasing the angle between the guide vane and the wind curtain air outlet according to the oil fume escape probability and the real-time temperature of the pot; The range hood structure comprises a table top, a smoke collecting cavity, the table top is provided with a cooking area, the smoke collecting cavity is arranged on the table top, the smoke collecting cavity is raised and exposed when working, and a range hood smoke inlet is exposed, the range hood smoke inlet faces the cooking area of the table top, and the wind curtain air outlet is arranged above the range hood smoke inlet.

2. The control method according to claim 1, characterized by, Before calculating the oil fume escape probability according to the real-time temperature of the pot and the initial angle at which the guide vane opens, the method further comprises: obtaining the standard temperature of the pot under the current working gear of the range hood structure; calculating the oil fume escape probability according to the real-time temperature of the pot and the initial angle at which the guide vane opens, comprises: calculating the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the current working gear of the range hood structure; calculating the oil fume escape probability according to the real-time temperature of the pot, the temperature difference between the standard temperature of the pot under the current working gear of the range hood structure and the initial angle at which the guide vane opens.

3. The control method according to claim 2, characterized by, calculating the oil fume escape probability according to the real-time temperature of the pot, the temperature difference between the standard temperature of the pot under the current working gear of the range hood structure and the initial angle at which the guide vane opens, comprises: The oil fume escape probability Pe is calculated according to the formula , wherein ΔT is the temperature difference between the real-time temperature of the pot and the standard temperature of the pot under the current working gear of the smoke machine structure, A1 is the initial angle of the opening of the air deflector, and k and C are both preset constants.

4. The control method according to claim 2, characterized by, when the oil fume escape probability exceeds a preset probability threshold, increasing the angle between the guide vane and the wind curtain air outlet according to the oil fume escape probability and the real-time temperature of the pot, comprises: when the oil fume escape probability exceeds a preset probability threshold, calculating the angle increase A' of the guide vane and the wind curtain air outlet according to the oil fume escape probability, the real-time temperature of the pot and the temperature difference between the standard temperature of the pot under the current working gear of the range hood structure; Adjusting the included angle between the air deflector and the air curtain outlet to a target angle A 11 Wherein, A 11 =A1+A'; wherein, A1 is the initial angle of the air deflector opening.

5. The control method according to claim 4, characterized by when the oil fume escape probability exceeds a preset probability threshold, calculating the angle increase A' of the guide vane and the wind curtain air outlet according to the oil fume escape probability, the real-time temperature of the pot and the temperature difference between the standard temperature of the pot under the current working gear of the range hood structure, comprises: when the oil fume escape probability exceeds a preset probability threshold, the angle increase A' of the guide vane and the wind curtain air outlet is calculated according to the formula , an angle increase A' of the deflector and the air curtain outlet is calculated; wherein Pe is the oil fume escape probability, AT is a temperature difference between a real-time temperature of the pot and a standard temperature of the pot under a working gear of the current structure of the extractor hood, k and C are both preset constants, B is a preset constant corresponding to the working gear of the current structure of the extractor hood, and a unit of the angle increase A' is degree (°).

6. The control method according to claim 5, characterized by The working gears of the range hood structure comprise a high-heat cooking gear, a frying gear and a steaming gear. When the working gear of the smoke machine structure is the explosive stir-frying gear, B=B1; when the working gear of the smoke machine structure is the frying and frying gear, B=B2; when the working gear of the smoke machine structure is the steaming and boiling gear, B=B3. Wherein, B1>B2>B3.

7. The control method according to claim 6, characterized by B1=0.3, B2=0.2, B3=0.

1.

8. The control method according to claim 3 or 5, characterized by, K=0.1, C=15.

9. The control method according to claim 1, characterized by, The working gear of the smoke machine structure comprises an explosive stir-frying gear, a frying and frying gear and a steaming and boiling gear; When the working gear of the smoke machine structure is the explosive stir-frying gear, the initial angle is A2; When the working gear of the smoke machine structure is the frying and frying gear, the initial angle is A3; When the working gear of the smoke machine structure is the steaming and boiling gear, the initial angle is A4; Wherein, A2>A3>A4.

10. An island smoker, comprising: The smoke machine structure and the air curtain structure are comprised, the air curtain structure comprises an air curtain air outlet and a guide vane, and the turning angle of the guide vane is adjustable. The island smoke machine is used for executing the control method of the island smoke machine as claimed in any one of claims 1-9.

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