Range hood control method, device and range hood

Abstract

A range hood control method, a device and a range hood, relating to the technical field of kitchen appliances. Disclosed are a range hood control method, a device and a range hood. The range hood is provided with an oil-smoke suction channel and a division structure provided in the oil-smoke suction channel, the division structure dividing the oil-smoke suction channel into a left side channel and a right side channel. The range hood control method comprises: acquiring a first smoke concentration in a region corresponding to the left side channel and a second smoke concentration in a region corresponding to the right side channel; and then, on the basis of the first smoke concentration and the second smoke concentration, controlling the division structure to adjust the sizes of the left side channel and the right side channel, so as to correspondingly control the smoke suction amounts of the left side channel and the right side channel. Thus, the method can narrow the channel corresponding to the side having a smaller amount of smoke, so as to enhance the smoke suction capacity of the channel corresponding to the side having a greater amount of smoke and reduce the smoke suction capacity of the channel corresponding to the side having the smaller amount of smoke, improving the smoke suction effect of the range hood.

Description

Range hood control method and device, and range hood

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202411081184.9, filed on August 7, 2024, and entitled "Range hood control method and device, and range hood", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of kitchen appliances, and in particular to a range hood control method and device, and a range hood. BACKGROUND

[0004] A range hood is usually installed above a cooking appliance and can quickly extract and discharge smoke generated during food cooking from the kitchen.

[0005] In order to adapt to the layout of left and right double burners of a kitchen stove, the existing range hood is usually provided with left and right two air inlets to match the work of the stove, and each burner is matched with an air inlet to achieve uniform oil fume suction for the cooking appliances on the two burners.

[0006] However, in some cooking scenarios, the user will only use one burner for cooking, resulting in a large amount of oil fume being generated below one air inlet and only a small amount of oil fume being diffused below the other air inlet, or the cooking appliance on one burner is operated to produce a large amount of oil fume, and the cooking appliance on the other burner is operated to produce a small amount of oil fume, resulting in a large amount of oil fume being generated below one air inlet and a small amount of oil fume being generated below the other air inlet. In these cooking scenarios, when the uniform smoke suction is still adopted, a large amount of oil fume on one side cannot be completely sucked, while the other side with a small amount of oil fume has excessive wind, resulting in poor oil fume suction effect of the range hood. SUMMARY

[0007] The main purpose of the present application is to provide a range hood control method and device, and a range hood, which aims to improve the smoke suction effect of the range hood.

[0008] To achieve the above-mentioned purpose, the present application provides a range hood control method, the range hood having an oil fume suction channel and a flow dividing structure arranged in the oil fume suction channel, the flow dividing structure dividing the oil fume suction channel into a left channel and a right channel; the range hood control method comprising:

[0009] obtaining a first smoke concentration of a region corresponding to the left channel and a second smoke concentration of a region corresponding to the right channel; and

[0010] According to the first smoke concentration and the second smoke concentration, the size of the left channel and the right channel is adjusted by the flow distribution structure to control the smoke suction amount of the left channel and the right channel.

[0011] Optionally, the flow distribution structure comprises a rotating part rotatably arranged in the smoke suction channel, and the step of adjusting the size of the left channel and the right channel by the flow distribution structure to control the smoke suction amount of the left channel and the right channel according to the first smoke concentration and the second smoke concentration is specifically:

[0012] According to the first smoke concentration and the second smoke concentration, the rotating angle of the rotating part is controlled to adjust the size of the left channel and the right channel by the flow distribution structure, so as to control the smoke suction amount of the left channel and the right channel.

[0013] Optionally, the step of adjusting the size of the left channel and the right channel by the flow distribution structure to control the smoke suction amount of the left channel and the right channel according to the first smoke concentration and the second smoke concentration comprises:

[0014] When the first smoke concentration is greater than the second smoke concentration, the flow distribution structure is controlled to act to increase the smoke suction amount of the left channel and reduce the smoke suction amount of the right channel, so that the smoke suction amount of the left channel is greater than that of the right channel.

[0015] When the first smoke concentration is less than the second smoke concentration, the flow distribution structure is controlled to act to increase the right channel and reduce the left channel, so that the smoke suction amount of the right channel is greater than that of the left channel.

[0016] When the first smoke concentration is equal to the second smoke concentration, the flow distribution structure is controlled to act to make the size of the left channel and the right channel equal, so that the smoke suction amount of the left channel is equal to that of the right channel.

[0017] Optionally, the step of adjusting the size of the left channel and the right channel by the flow distribution structure to control the smoke suction amount of the left channel and the right channel according to the first smoke concentration and the second smoke concentration comprises:

[0018] According to the ratio of the first smoke concentration and the second smoke concentration, the smoke suction amount distribution ratio of the left channel and the right channel is determined.

[0019] According to the smoke suction amount distribution ratio, the size of the left channel and the right channel is adjusted by the flow distribution structure to control the smoke suction amount of the left channel and the right channel.

[0020] Optionally, when the first smoke concentration is lower than the first smoke concentration threshold, the control structure adjusts the left channel to the minimum and the right channel to the maximum.

[0021] When the second smoke concentration is lower than the second smoke concentration threshold, the control structure adjusts the right channel to the minimum and the left channel to the maximum.

[0022] Optionally, the range hood can be used in cooperation with a cooking appliance, the cooking appliance comprising a first combustion part and a second combustion part, the left channel being arranged corresponding to the first combustion part and the right channel being arranged corresponding to the second combustion part, and the obtaining of the first smoke concentration of the region corresponding to the left channel and the second smoke concentration of the region corresponding to the right channel comprises:

[0023] obtaining the size of the fire of the first combustion part and the size of the fire of the second combustion part;

[0024] determining the first smoke concentration and the second smoke concentration according to the size of the fire and a preset corresponding relationship between the size of the fire and the smoke concentration.

[0025] In addition, to achieve the above-mentioned purpose, the present application also proposes a range hood control device, which comprises a memory, a processor and a range hood control program stored in the memory and executable on the processor, and the range hood control program is configured to implement the steps of any one of the range hood control methods.

[0026] In addition, to achieve the above-mentioned purpose, the present application also proposes a range hood, which has an oil fume suction channel and a control structure arranged in the oil fume suction channel, the control structure divides the oil fume suction channel into a left channel and a right channel, and the range hood uses the range hood control method, or the range hood further comprises the range hood control device.

[0027] Optionally, the control structure comprises a rotating part rotatably arranged in the oil fume suction channel, and the rotating part is used to rotate according to the first smoke concentration and the second smoke concentration to control the control structure to adjust the size of the left channel and the right channel, so as to correspondingly control the smoke suction amount of the left channel and the right channel.

[0028] Optionally, the range hood further comprises a smoke detection device arranged in the range hood and used to obtain the first smoke concentration of the region corresponding to the left channel and the second smoke concentration of the region corresponding to the right channel.

[0029] Optionally, the range hood can be used in cooperation with a cooking appliance, the cooking appliance comprising a first combustion part and a second combustion part, the left channel being arranged corresponding to the first combustion part and the right channel being arranged corresponding to the second combustion part, and the range hood further comprises:

[0030] A temperature detection device is configured to acquire the temperatures of the first combustion part and the second combustion part, so as to acquire corresponding fire sizes according to the temperatures of the first combustion part and the second combustion part.

[0031] Optionally, the extractor hood further comprises a wireless communication device, which is in wireless communication connection with the cooktop. The cooktop comprises a first valve and a second valve. The first valve is configured to adjust the fire size of the first combustion part, and the second valve is configured to adjust the fire size of the second combustion part. The wireless communication device is configured to acquire the opening sizes of the first valve and the second valve, so as to acquire the fire sizes of the first combustion part and the second combustion part.

[0032] In the technical solution of the present application, the extractor hood has an oil fume suction channel and a flow splitting structure arranged in the oil fume suction channel. The flow splitting structure divides the oil fume suction channel into a left channel and a right channel. The extractor hood control method acquires a first smoke concentration of a region corresponding to the left channel and a second smoke concentration of a region corresponding to the right channel. Then, according to the first smoke concentration and the second smoke concentration, the flow splitting structure is controlled to adjust the sizes of the left channel and the right channel, so as to correspondingly control the smoke suction amounts of the left channel and the right channel. In this way, the channel corresponding to the side with less oil fume can be reduced in size, the smoke suction capacity of the channel corresponding to the side with more oil fume can be improved, and the smoke suction capacity of the channel corresponding to the side with less oil fume can be reduced, thereby improving the smoke suction effect of the extractor hood. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced here. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0035] FIG. 1 is a flowchart provided by an embodiment of the extractor hood control method of the present application;

[0036] FIG. 2 is a flowchart provided by another embodiment of the extractor hood control method of the present application;

[0037] FIG. 3 is a flowchart provided by still another embodiment of the extractor hood control method of the present application;

[0038] FIG. 4 is a flowchart provided by still another embodiment of the extractor hood control method of the present application;

[0039] Fig. 5 is a flowchart of another embodiment of the range hood control method of the present application;

[0040] Fig. 6 is a flowchart of another embodiment of the range hood control method of the present application;

[0041] Fig. 7 is a structural diagram of an embodiment of the range hood of the present application;

[0042] Fig. 8 is a structural diagram of a flow distribution structure of an embodiment of the range hood of the present application;

[0043] Fig. 9 is a circuit framework diagram of an embodiment of the range hood control device of the present application.

[0044] Brief Description of the Drawings: 10, oil fume passage; 2, flow distribution structure; 10a, left passage; 10b, right passage; 21, rotating part; 22, fixed part; 30, wireless communication device; 40, memory; 50, processor.

[0045] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0047] The range hood in the prior art is usually installed above a cooking appliance and can quickly draw away and discharge the smoke generated during food cooking from the kitchen. In order to adapt to the layout of the left and right double burners of the kitchen stove, the existing range hood is usually provided with left and right two air inlets to match the work of the stove, and each burner is matched with an air inlet to achieve uniform oil fume suction for the cooking appliances on the two burners.

[0048] However, in some cooking scenarios, the user will only use one burner for cooking, resulting in a large amount of oil fume under one air inlet and only a small amount of oil fume diffused under the other air inlet, or the cooking appliance on one burner performs the operation of frying, etc. which generates a large amount of oil fume, and the cooking appliance on the other burner performs the operation of stewing, etc. which generates a small amount of oil fume, resulting in a large amount of oil fume under one air inlet and a small amount of oil fume under the other air inlet. In these cooking scenarios, when the uniform smoke suction is still adopted, a large amount of oil fume on one side cannot be completely sucked, and the phenomenon of excessive wind on the side with a small amount of oil fume occurs, thereby resulting in poor oil fume suction effect of the range hood.

[0049] Based on this, the application embodiment provides a range hood control method.

[0050] Referring to FIG. 7, the range hood of the application has an oil fume suction channel 10 and a flow splitting structure 2 arranged in the oil fume suction channel 10. The flow splitting structure 2 divides the oil fume suction channel 10 into a left channel 10a and a right channel 10b. One end of the oil fume suction channel 10 is connected to the interior of the kitchen, and the other end is connected to the exhaust system of the range hood to directly or after filtering, purification, etc. discharge to the outside. The flow splitting structure 2 can be composed of one or more adjustable baffles or partitions. The flow splitting structure 2 can be movably connected to the shell of the range hood or other fixedly installed positions, so as to flexibly adjust its position or angle, thereby adjusting the size of the left channel 10a and the right channel 10b. Specifically, the baffles or partitions can be electrically controlled, and the precise adjustment of the position thereof can be realized by the motor or driving device inside the range hood.

[0051] It should be noted that the adjustment of the size of the left channel 10a and the right channel 10b here does not mean the adjustment of the size of all positions in the left channel 10a and the right channel 10b, but the adjustment of the size of the minimum cross section of the left channel 10a and the right channel 10b. The minimum cross section is the throat of the corresponding channel, and the size thereof is proportional to the suction capacity of the corresponding channel. The flow splitting structure 2 divides the oil fume suction channel 10 into the left channel 10a and the right channel 10b, reduces the vortex caused by the mixing and collision of the two oil fumes entering the oil fume suction channel 10 from the left channel 10a and the right channel 10b respectively, improves the smoothness of the oil fume passing through the oil fume suction channel 10, thereby improving the smoke suction effect of the range hood and reducing the noise.

[0052] Referring to FIG. 1, the range hood control method provided by the application includes steps S100-S200:

[0053] Step S100: obtaining a first smoke concentration of the region corresponding to the left channel 10a and a second smoke concentration of the region corresponding to the right channel 10b.

[0054] It should be noted that the left channel 10a corresponding area can be the cooking area directly below or near the left channel 10a, which usually corresponds to the left burner or cooking appliance in the kitchen. Similarly, the right channel 10b corresponding area refers to the cooking area directly below or near the right channel 10b, which corresponds to the right burner or cooking appliance in the kitchen. The first smoke concentration is the density of the oil fume in the left channel 10a corresponding area, which reflects the speed of oil fume generation in this area. When the first smoke concentration is large, it indicates that the oil fume generation speed in the left channel 10a area is fast. When the first smoke concentration is small, it indicates that the oil fume generation speed in the left channel 10a area is slow. Similarly, the second smoke concentration is the density of the oil fume in the right channel 10b corresponding area, which reflects the speed of oil fume generation in the right channel 10b corresponding area.

[0055] In a feasible implementation, the extractor hood comprises a smoke detection device arranged in the extractor hood, which is used to obtain the first smoke concentration of the left channel 10a corresponding area and the second smoke concentration of the right channel 10b corresponding area.

[0056] In this embodiment, the smoke detection device can be one or more infrared sensors. When the infrared sensor is one, the detection range of the infrared sensor can be covered to the cooking areas corresponding to the left channel 10a and the right channel 10b by rotating or translating, so as to alternately obtain the first smoke concentration and the second smoke concentration of the two areas. When the infrared sensor is multiple, independent infrared sensors can be respectively arranged above the corresponding cooking areas of the left channel 10a and the right channel 10b to realize real-time and independent monitoring of the smoke concentrations of the two areas.

[0057] In this embodiment, the extractor hood can be used in cooperation with a cooking appliance. The cooking appliance comprises a first combustion part and a second combustion part. The left channel 10a corresponds to the first combustion part, and the right channel 10b corresponds to the second combustion part. The extractor hood further comprises a temperature detection device, which is used to obtain the firepower of the first combustion part and the second combustion part.

[0058] In the embodiment, the first combustion part and the second combustion part correspond to two independent cooking areas in the kitchen respectively, allowing the user to perform cooking operations at different positions at the same time. For a double burner stove, the first combustion part and the second combustion part correspond to the burner positions on the left side and the right side of the double burner stove respectively. The temperature detection device can be a plurality of thermistors or infrared temperature sensors, which are respectively installed near the first combustion part and the second combustion part of the stove. The temperature detection device can accurately monitor the temperatures of the two combustion parts in real time and determine the fire size corresponding to the detected temperature, i.e., the fire size of the first combustion part and the second combustion part, which indirectly reflects the speed of oil fume generation to represent the first smoke concentration and the second smoke concentration.

[0059] In the embodiment, the range hood further comprises a wireless communication device, which is in wireless communication connection with the stove. The stove comprises a first valve and a second valve, the first valve being used to adjust the fire size of the first combustion part, and the second valve being used to adjust the fire size of the second combustion part. It can be understood that when the valve opening is larger, more gas is generally supplied to support a larger fire, and vice versa. Therefore, by obtaining the opening size of the first valve and the second valve through the wireless communication device, the fire size corresponding to the first combustion part and the second combustion part can be obtained, and then the first smoke concentration and the second smoke concentration can be obtained through the preset corresponding relationship between the fire size and the smoke concentration.

[0060] In the embodiment, by obtaining the first smoke concentration and the second smoke concentration, accurate data support can be provided for subsequent adjustment of the sizes of the left channel 10a and the right channel 10b to correspond to the control of the smoke suction amount of the left channel 10a and the right channel 10b.

[0061] In step S200, according to the first smoke concentration and the second smoke concentration, the size of the left channel 10a and the right channel 10b is adjusted by the flow distribution structure 2 to correspond to the control of the smoke suction amount of the left channel 10a and the right channel 10b.

[0062] In this embodiment, the difference, proportional relationship, or the size relationship between the first smoke concentration and the second smoke concentration and the preset smoke concentration threshold value can be used to control the size of the left channel 10a and the right channel 10b of the flow distribution structure 2 to control the smoke suction amount of the left channel 10a and the right channel 10b. For example, when the first smoke concentration is higher than the second smoke concentration, it indicates that the oil fume generated in the left cooking area is more concentrated. At this time, the range hood control device will automatically adjust the flow distribution structure 2 to increase the left channel 10a and correspondingly reduce the right channel 10b to ensure that the left channel 10a can effectively suck and discharge high-concentration oil fume. Conversely, if the second smoke concentration is significantly higher than the first smoke concentration, the opposite adjustment strategy is adopted to strengthen the suction capacity of the right channel 10b. When the first smoke concentration and the second smoke concentration are similar, the relative balance of the two channels is maintained. For another example, when the ratio of the first smoke concentration to the second smoke concentration deviates significantly from 1, it means that there is a significant difference in the oil fume generation of the two cooking areas. The range hood control device can accurately adjust the ratio of the left channel 10a to the right channel 10b according to the size of the ratio to match the actual distribution of oil fume generation with the smoke suction amount. Specifically, if the ratio of the first smoke concentration to the second smoke concentration is a certain value (such as 1.5) greater than 1, it indicates that the oil fume concentration of the left channel 10a is higher than that of the right channel 10b. At this time, the opening size of the left channel 10a can be increased and the right channel 10b can be correspondingly reduced to optimize the overall smoke suction effect. Conversely, if the ratio is a certain value (such as 0.8) less than 1, the opposite adjustment strategy is adopted to strengthen the suction capacity of the right channel 10b. For another example, when the first smoke concentration or the second smoke concentration is lower than a certain smoke concentration threshold value, it can be judged that the corresponding area of the left channel 10a or the right channel 10b is not being cooked at this time. At this time, the flow distribution structure 2 can be controlled to adjust the channel corresponding to the uncooked area to the minimum and the other channel to the maximum.

[0063] In this embodiment, the range hood has an oil fume suction channel 10 and a flow distribution structure 2 arranged in the oil fume suction channel 10, and the flow distribution structure 2 divides the oil fume suction channel 10 into a left channel 10a and a right channel 10b. The range hood control method obtains the first smoke concentration of the area corresponding to the left channel 10a and the second smoke concentration of the area corresponding to the right channel 10b. Then, according to the first smoke concentration and the second smoke concentration, the size of the left channel 10a and the right channel 10b of the flow distribution structure 2 is adjusted to control the smoke suction amount of the left channel 10a and the right channel 10b. Thus, the channel corresponding to the side with less oil fume can be reduced, the smoke suction capacity of the channel corresponding to the side with more oil fume can be improved, the smoke suction capacity of the channel corresponding to the side with less oil fume can be reduced, and the smoke suction effect of the range hood can be improved.

[0064] In a possible implementation, when the smoke machine can be used in cooperation with the stove, the stove includes a first combustion part and a second combustion part, the left channel 10a is arranged corresponding to the first combustion part, and the right channel 10b is arranged corresponding to the second combustion part. Referring to FIG. 6, the step S100 of acquiring the first smoke concentration corresponding to the region of the left channel 10a and the second smoke concentration corresponding to the region of the right channel 10b includes:

[0065] The step S110 of acquiring the fire size of the first combustion part and the fire size of the second combustion part.

[0066] In the embodiment, the temperature detection device can be used to acquire the fire size of the first combustion part and the fire size of the second combustion part. The temperature detection device can be arranged as a plurality of thermistors or infrared temperature sensors, which are respectively installed near the first combustion part and the second combustion part of the stove. The temperature detection device can monitor the temperature of the two combustion parts in real time and accurately, and then determine the fire size (i.e., the fire size of the first combustion part and the fire size of the second combustion part) corresponding to the detected temperature. In this way, the speed of the oil fume generated can be indirectly reflected to represent the first smoke concentration and the second smoke concentration.

[0067] Specifically, the thermistor can change its resistance value according to the change of the ambient temperature. When the fire of the combustion part increases, the ambient temperature rises, and the resistance value of the thermistor decreases accordingly. Conversely, the resistance value of the thermistor decreases, and the current or voltage of the related circuit caused by the change of the resistance value is measured, and then the fire size of the combustion part is calculated to provide data support for subsequent intelligent control. The infrared temperature sensor measures the temperature by the principle of infrared radiation, can receive the infrared radiation emitted by the combustion part, and convert it into an electrical signal for processing, so as to obtain the real-time temperature of the combustion part, and then determine the fire size corresponding to the detected temperature.

[0068] In a possible implementation, the stove includes a first valve and a second valve. The first valve is used to adjust the fire size of the first combustion part, and the second valve is used to adjust the fire size of the second combustion part. It can be understood that when the valve opening is larger, more gas is generally supplied to support larger fire, and vice versa. Therefore, the opening size of the first valve and the second valve can be acquired by the wireless communication device in wireless communication connection with the stove, that is, the fire size corresponding to the first combustion part and the second combustion part can be acquired.

[0069] The step S120 of determining the first smoke concentration and the second smoke concentration according to the fire size and the preset corresponding relationship between the fire size and the smoke concentration.

[0070] It can be understood that, in general, when the firepower of the first combustion part is larger, it indicates that the cooking activity in the area corresponding to the left channel 10a is more intense, and the oil fume generation speed is faster. Similarly, when the firepower of the second combustion part is larger, it indicates that the cooking activity in the area corresponding to the right channel 10b is more intense, and the oil fume generation speed is faster. The correspondence between the firepower size and the preset firepower size and the smoke concentration can be obtained through a large amount of experimental data analysis and model establishment, so as to accurately determine the corresponding smoke concentration change under different firepower conditions, and then obtain the first smoke concentration and the second smoke concentration, so as to provide a reliable basis for subsequent control of the size of the left channel and the right channel by the shunt structure, and for corresponding control of the smoke suction amount of the left channel and the right channel.

[0071] In a feasible implementation, with reference to FIG. 8, the shunt structure 2 can include a rotating part 21 rotatably arranged in the oil fume channel 10, so as to adjust the size of the left channel 10a and the right channel 10b through the rotating part 21, thereby adjusting the oil fume suction capacity of the left channel 10a and the right channel 10b. When the rotating part 21 rotates relative to the left channel 10a, the oil fume suction capacity of the left channel 10a can be adjusted smaller, and the oil fume suction capacity of the right channel 10b can be adjusted larger. When the rotating part 21 rotates relative to the right channel 10b, the oil fume suction capacity of the right channel 10b can be adjusted smaller, and the oil fume suction capacity of the left channel 10a can be adjusted larger.

[0072] In a feasible implementation, with reference to FIG. 2, the step S200 includes a step S210 of controlling the rotation angle of the rotating part according to the first smoke concentration and the second smoke concentration, so as to control the shunt structure to adjust the size of the left channel and the right channel, thereby corresponding to control the smoke suction amount of the left channel and the right channel.

[0073] In the embodiment, for the double-burner gas stove, the user can only use one of the left and right burners for cooking, resulting in a large amount of oil fume under one of the left channel 10a and the right channel 10b and a small amount of oil fume diffused under the other, or the user uses both the left and right burners for cooking, one for frying and the other for simmering, resulting in a large amount of oil fume under one of the left channel 10a and the right channel 10b and a small amount of oil fume under the other. In this case, by controlling the rotating part 21 to rotate relative to the channel with lower smoke concentration, the channel corresponding to the side with a large amount of oil fume is increased, and the channel corresponding to the side with a small amount of oil fume is decreased, thereby improving the oil fume suction capacity of the channel corresponding to the side with a large amount of oil fume and reducing the oil fume suction capacity of the channel corresponding to the side with a small amount of oil fume, thereby improving the oil fume suction effect of the range hood.

[0074] In the embodiment, the greater the smoke concentration under one of the left channel 10a and the right channel 10b and / or the smaller the smoke concentration under the other, the greater the angle at which the rotating part 21 is controlled to rotate relative to the channel with lower smoke concentration, so as to more significantly adjust the oil fume suction capacity of the left channel 10a and the right channel 10b. In this way, it can be ensured that the side with a large amount of oil fume can be completely sucked, and the phenomenon of excessive wind power on the side with a small amount of oil fume is prevented, thereby improving the oil fume suction effect of the range hood.

[0075] In an available implementation, with reference to FIG. 3, the step S200 includes S210A, when the first smoke concentration is greater than the second smoke concentration, the flow distribution structure 2 is controlled to operate, the smoke suction amount of the left channel 10a is increased, and the smoke suction amount of the right channel 10b is reduced, so that the smoke suction amount of the left channel 10a is greater than the smoke suction amount of the right channel 10b.

[0076] When the first smoke concentration is less than the second smoke concentration, the flow distribution structure 2 is controlled to operate, the right channel 10b is increased, and the left channel 10a is reduced, so that the smoke suction amount of the right channel 10b is greater than the smoke suction amount of the left channel 10a.

[0077] When the first smoke concentration is equal to the second smoke concentration, the flow distribution structure 2 is controlled to operate, the left channel 10a and the right channel 10b are equal in size, so that the smoke suction amount of the left channel 10a is equal to the smoke suction amount of the right channel 10b.

[0078] In this embodiment, when the first smoke concentration is greater than the second smoke concentration, the flow distribution structure 2 is adjusted to increase the smoke suction amount of the left channel 10a while decreasing the smoke suction amount of the right channel 10b. This ensures that the smoke suction amount of the left channel 10a exceeds that of the right channel 10b, thereby more effectively clearing the area with higher smoke concentration. For example, if the smoke concentration detected by the left channel 10a is 100 ppm while that of the right channel 10b is 50 ppm in a two-channel ventilation system, the flow distribution structure 2 should be adjusted so that the suction amount of the left channel 10a is greater than that of the right channel 10b to ensure that the left channel 10a can reduce the smoke concentration more quickly. When the first smoke concentration is less than the second smoke concentration, the flow distribution structure 2 is adjusted to increase the smoke suction amount of the right channel 10b while decreasing the smoke suction amount of the left channel 10a. This will cause the smoke suction amount of the right channel 10b to exceed that of the left channel 10a, thereby more effectively handling the area with higher smoke concentration. For example, if the smoke concentration of the left channel 10a is 50 ppm while that of the right channel 10b is 100 ppm, the flow distribution structure 2 should be adjusted so that the suction amount of the right channel 10b is greater than that of the left channel 10a to ensure that the right channel 10b can reduce the smoke concentration more quickly. When the first smoke concentration is equal to the second smoke concentration, the flow distribution structure 2 is adjusted to maintain equal smoke suction amounts for the left and right channels 10a and 10b. This ensures that the smoke suction amounts of the two channels are the same, thereby evenly handling the smoke. For example, if the smoke concentrations of the left and right channels 10a and 10b are both 80 ppm, the flow distribution structure 2 should be adjusted so that the suction amounts of the two channels are equal to ensure that the smoke can be evenly cleared.

[0079] In this embodiment, when the first smoke concentration is not equal to the second smoke concentration, the adjustment strategy of the flow distribution structure 2 can be further refined according to the difference between the first and second smoke concentrations to achieve more precise and efficient smoke suction control. Specifically, when the first smoke concentration is greater than the second smoke concentration, and the difference between the first and second smoke concentrations is greater, the increase in the smoke suction amount of the left channel 10a should be correspondingly increased, and the decrease in the smoke suction amount of the right channel 10b should also be increased synchronously to ensure that the left channel 10a can quickly and effectively cope with the challenge of high-concentration cooking fumes. Conversely, if the second smoke concentration is significantly higher than the first smoke concentration, and the difference between the two is large, the increase in the smoke suction amount of the right channel 10b should be more significant, and the left channel 10a should correspondingly decrease its suction amount to quickly reduce the high-concentration cooking fumes in the right channel 10b. In this way, the adaptability of the range hood in different cooking scenarios is improved, and the intelligence of the range hood is enhanced, thereby optimizing the user's experience.

[0080] In a feasible implementation, referring to FIG. 4, the step S200 comprises S210B, determining the smoke suction amount distribution ratio of the left channel 10a and the right channel 10b according to the ratio of the first smoke concentration and the second smoke concentration; and controlling the action of the flow distribution structure 2 to adjust the size of the left channel 10a and the right channel 10b according to the smoke suction amount distribution ratio, so as to correspondingly control the smoke suction amount of the left channel 10a and the right channel 10b.

[0081] In the embodiment, when the ratio of the first smoke concentration and the second smoke concentration is greater than 1, the action of the flow distribution structure 2 is controlled to increase the smoke suction amount of the left channel 10a and reduce the smoke suction amount of the right channel 10b, so that the smoke suction amount of the left channel 10a is greater than that of the right channel 10b; when the ratio of the first smoke concentration and the second smoke concentration is less than 1, the action of the flow distribution structure 2 is controlled to increase the right channel 10b and reduce the left channel 10a, so that the smoke suction amount of the right channel 10b is less than that of the left channel 10a; and when the ratio of the first smoke concentration and the second smoke concentration is equal to 1, the action of the flow distribution structure 2 is controlled to make the size of the left channel 10a and the right channel 10b equal, so that the smoke suction amount of the left channel 10a is equal to that of the right channel 10b.

[0082] In the present embodiment, when the ratio of the first smoke concentration to the second smoke concentration is greater than 1, the flow splitting structure 2 is adjusted to increase the amount of smoke drawn by the left channel 10a while decreasing the amount of smoke drawn by the right channel 10b, thereby ensuring that the amount of smoke drawn by the left channel 10a exceeds that of the right channel 10b, and thus more effectively clearing the area of higher concentration smoke. For example, if in a two-channel ventilation system, the left channel 10a detects a smoke concentration of 100 ppm while the right channel 10b detects a smoke concentration of 50 ppm, the flow splitting structure 2 should be adjusted so that the left channel 10a draws more than the right channel 10b, to ensure that the left channel 10a can more quickly reduce the smoke concentration. When the ratio of the first smoke concentration to the second smoke concentration is less than 1, the flow splitting structure 2 is adjusted to increase the amount of smoke drawn by the right channel 10b while decreasing the amount of smoke drawn by the left channel 10a. This will cause the amount of smoke drawn by the right channel 10b to exceed that of the left channel 10a, to more effectively address the area of higher concentration smoke. For example, if the left channel 10a detects a smoke concentration of 50 ppm while the right channel 10b detects a smoke concentration of 100 ppm, the flow splitting structure 2 should be adjusted so that the right channel 10b draws more than the left channel 10a, to ensure that the right channel 10b can more quickly reduce the smoke concentration. When the ratio of the first smoke concentration to the second smoke concentration is equal to 1, the flow splitting structure 2 is adjusted to maintain equal amounts of smoke drawn by the left channel 10a and the right channel 10b. This ensures that the amount of smoke drawn by both channels is the same, and thus the smoke is evenly addressed. For example, if the left channel 10a and the right channel 10b both detect a smoke concentration of 80 ppm, the flow splitting structure 2 should be adjusted so that both channels draw the same amount, to ensure that the smoke is evenly cleared.

[0083] In this embodiment, the specific adjustment rate and amplitude of the flow splitting structure 2 can also be adjusted according to the ratio of the first smoke concentration and the second smoke concentration, to further optimize the smoke treatment efficiency. Specifically, when the ratio of the first smoke concentration and the second smoke concentration deviates significantly from 1, that is, the smoke concentration difference between the two channels is large, the adjustment speed of the flow splitting structure 2 can be increased and the adjustment amplitude can be increased to quickly balance the smoke suction capacity of the two channels, so as to quickly respond to and effectively treat high-concentration smoke. For example, if the smoke concentration of the left channel 10a is 150 ppm and the smoke concentration of the right channel 10b is only ppm, the ratio is much higher than 1, at this time, the system should not only quickly increase the suction amount of the left channel 10a and reduce the suction amount of the right channel 10b, but also appropriately increase the acceleration of this adjustment process, so that the left channel 10a can reach a high-efficiency smoke removal state faster, while avoiding excessive suction of the right channel 10b, which wastes resources or produces unnecessary noise. On the other hand, if the ratio of the first smoke concentration and the second smoke concentration is close to but slightly higher or slightly lower than 1, that is, the smoke concentrations of the two channels are similar but slightly different, the system can adopt a more delicate adjustment strategy to slowly and accurately adjust the flow splitting structure 2 to maintain the dynamic balance of the smoke suction amount of the two channels. In this way, the smoke can be effectively removed, and the potential impact of frequent large adjustments on the stability and service life of the smoke machine can be avoided.

[0084] In a feasible implementation, referring to FIG. 5, step S200 includes step S210C, when the first smoke concentration is lower than the first smoke concentration threshold, the flow splitting structure 2 is controlled to adjust the left channel 10a to the minimum and the right channel 10b to the maximum; when the second smoke concentration is lower than the second smoke concentration threshold, the flow splitting structure 2 is controlled to adjust the right channel 10b to the minimum and the left channel 10a to the maximum.

[0085] In this embodiment, the first smoke concentration threshold and the second smoke concentration threshold correspond to the minimum detectable smoke concentration when the corresponding area of the left channel 10a is not being cooked and the corresponding area of the right channel 10b is not being cooked, respectively. When the smoke concentration detected by either channel is lower than its corresponding threshold, it indicates that the cooking area corresponding to the channel is currently not producing significant smoke, and therefore there is no need to maintain a high amount of smoke suction. In order to save energy and prolong the service life of the range hood, the system intelligently adjusts the flow distribution structure 2 according to the real-time changes in smoke concentration, so that the smoke suction amount of the channel (left or right) that is not producing smoke is reduced to a minimum, i.e. the channel is adjusted to a minimum, to reduce unnecessary air flow and energy consumption. Specifically, when the first smoke concentration is lower than the first smoke concentration threshold, the control unit sends instructions to the flow distribution structure 2 to quickly adjust the opening of the left channel 10a to a minimum, while correspondingly increasing the opening of the right channel 10b to a maximum, to maximize the smoke suction capacity of the right channel 10b, ensuring that in the case of no smoke production in the left area, the smoke present in the right area can be effectively removed. Conversely, when the second smoke concentration is lower than the second smoke concentration threshold, the system performs the opposite operation, i.e. reduces the opening of the right channel 10b and expands the opening of the left channel 10a, to adapt to the smoke suction demand of the left area. In this way, not only does it improve the intelligence level of the range hood, but it also significantly improves its energy efficiency ratio under different cooking scenarios.

[0086] In this embodiment, the range hood has an oil fume suction channel 10 and a flow distribution structure 2 disposed in the oil fume suction channel 10, which divides the oil fume suction channel 10 into a left channel 10a and a right channel 10b. The range hood control method obtains a first smoke concentration of the area corresponding to the left channel 10a and a second smoke concentration of the area corresponding to the right channel 10b. Then, according to the first smoke concentration and the second smoke concentration, the flow distribution structure 2 is controlled to adjust the size of the left channel 10a and the right channel 10b, so as to correspondingly control the smoke suction amount of the left channel 10a and the right channel 10b. In this way, the channel corresponding to the side with less oil fume can be reduced in size, the smoke suction capacity of the channel corresponding to the side with more oil fume can be improved, and the smoke suction capacity of the channel corresponding to the side with less oil fume can be reduced, thereby improving the smoke suction effect of the range hood.

[0087] The present application also provides a range hood control device, as shown in FIG. 9, which includes a memory 40, a processor 50, and a range hood control program stored on the memory 40 and executable on the processor 50. The range hood control program is configured to implement the steps of the range hood control method.

[0088] The smoke machine control device provided in the application adopts the smoke machine control method in the above embodiments, and can improve the smoke suction effect of the smoke machine. Compared with the prior art, the smoke machine control device provided in the application has the same beneficial effects as the smoke machine control method provided in the above embodiments, and other technical features in the smoke machine control device are the same as the features disclosed in the above embodiments, which will not be repeated here.

[0089] The application also provides a smoke machine having an oil fume suction passage 10 and a flow splitting structure 2 arranged in the oil fume suction passage 10, the flow splitting structure 2 divides the oil fume suction passage 10 into a left passage 10a and a right passage 10b, and the smoke machine uses the smoke machine control method, or the smoke machine further comprises the smoke machine control device.

[0090] In a feasible embodiment, referring to FIG. 8, the flow splitting structure 2 can comprise a rotating part 21 rotatably arranged in the oil fume suction passage 10, so as to adjust the sizes of the left passage 10a and the right passage 10b through the rotating part 21, thereby adjusting the oil fume suction abilities of the left passage 10a and the right passage 10b. When the rotating part 21 rotates relative to the left passage 10a, the oil fume suction ability of the left passage 10a can be adjusted to be smaller, and the oil fume suction ability of the right passage 10b can be adjusted to be larger. When the rotating part 21 rotates relative to the right passage 10b, the oil fume suction ability of the right passage 10b can be adjusted to be smaller, and the oil fume suction ability of the left passage 10a can be adjusted to be larger.

[0091] In the embodiment, for the gas stove with double burners, the user can use only one burner in the left side and the right side to cook, which can cause a large amount of oil fume to be generated below one of the left passage 10a and the right passage 10b, and a small amount of oil fume to be diffused below the other one. Alternatively, when the user uses both the left burner and the right burner to cook, one of the burners is used to perform an operation that can generate a large amount of oil fume, and the other burner is used to perform an operation that can generate a small amount of oil fume, which can cause a large amount of oil fume to be generated below one of the left passage 10a and the right passage 10b, and a small amount of oil fume to be generated below the other one. In this case, the rotating part 21 is controlled to rotate relative to the passage with a lower smoke concentration, the passage corresponding to the side with a large amount of oil fume is increased, and the passage corresponding to the side with a small amount of oil fume is decreased, so as to improve the oil fume suction ability of the passage corresponding to the side with a large amount of oil fume, and to reduce the oil fume suction ability of the passage corresponding to the side with a small amount of oil fume, thereby improving the oil fume suction effect of the smoke machine.

[0092] In a feasible embodiment, the smoke machine comprises a smoke detection device arranged in the smoke machine, which is used to acquire a first smoke concentration of the region corresponding to the left passage 10a, and a second smoke concentration of the region corresponding to the right passage 10b.

[0093] In this embodiment, the smoke detection device can be one or more infrared sensors. When the infrared sensor is one, the detection range of the infrared sensor can be covered to the corresponding cooking areas of the left channel 10a and the right channel 10b by rotating or translating, so as to alternately obtain the first smoke concentration and the second smoke concentration of the two areas. When the infrared sensor is multiple, independent infrared sensors can be respectively arranged above the corresponding cooking areas of the left channel 10a and the right channel 10b, so as to realize real-time and independent monitoring of the smoke concentrations of the two areas.

[0094] Specifically, the infrared sensor includes an infrared light source such as an infrared light-emitting diode and an infrared light receiver (such as a photodiode or a phototransistor). The infrared light source continuously emits infrared rays of a specific wavelength (such as 940 nm, 850 nm, etc.). When the oil fume particles enter the propagation path of the infrared rays, part of the infrared rays will be absorbed, scattered or reflected by the oil fume particles, resulting in a decrease in the light intensity received by the infrared light receiver. By measuring the change in light intensity, the concentration of oil fume particles, i.e., the first smoke concentration and the second smoke concentration, can be calculated to provide a reliable basis for subsequent intelligent control.

[0095] In this embodiment, the smoke detection device can also be a color sensor. The color sensor has three color channels of red, green and blue. The photodiode in each channel is only sensitive to the light of the wavelength range corresponding to red light, green light or blue light, so that the color detection device can determine the intensity of red light, green light and blue light after receiving light from a certain area, and then determine the color and change of the area by calculating the intensity ratio of the three color channels, and further determine the first smoke concentration and the second smoke concentration.

[0096] In this embodiment, the smoke detection device can also be a camera. By capturing image or video information of the target area and processing and analyzing it, the color and change of the target area can also be obtained. Of course, the smoke detection device can also use other devices capable of detecting smoke concentration, and the first smoke concentration and the second smoke concentration can be detected by external devices capable of detecting smoke concentration, and then the detection results can be output to the control device of the smoke machine through wired or wireless communication, etc. The specific selection can be determined according to actual needs and scenes, which is not limited here.

[0097] In an implementation, the smoke machine can be used in cooperation with a stove, the stove comprising a first combustion part and a second combustion part, the left channel 10a is arranged corresponding to the first combustion part, and the right channel 10b is arranged corresponding to the second combustion part. The smoke machine further comprises a temperature detection device, which is used to obtain the temperature of the first combustion part and the second combustion part, so as to obtain the corresponding fire size according to the temperature of the first combustion part and the second combustion part.

[0098] In the embodiment, the first combustion part and the second combustion part correspond to two independent cooking areas in the kitchen respectively, allowing the user to perform cooking operations at different positions at the same time. For a double burner stove, the first combustion part and the second combustion part correspond to the burner positions on the left side and the right side of the double burner stove respectively. The temperature detection device can be a plurality of thermistors or infrared temperature sensors, which are respectively installed near the first combustion part and the second combustion part of the stove. The temperature detection device can accurately monitor the temperature of the two combustion parts in real time, and then determine the fire size corresponding to the detected temperature (i.e. the fire size of the first combustion part and the second combustion part), thereby indirectly reflecting the speed of oil fume generation.

[0099] Specifically, the thermistor can change its resistance value according to the change of the surrounding environment temperature. When the fire size of the combustion part increases, the surrounding environment temperature rises, and the resistance value of the thermistor decreases accordingly. Conversely, the resistance value of the thermistor decreases, and the current or voltage of the related circuit caused by the change of the resistance value is measured, and then the fire size of the combustion part is calculated, thereby providing data support for subsequent intelligent control. The infrared temperature sensor uses infrared radiation principle to measure temperature, can receive the infrared radiation emitted by the combustion part, and convert it into an electric signal for processing, thereby obtaining the real-time temperature of the combustion part.

[0100] In the embodiment, after obtaining the fire size of the first combustion part and the second combustion part, the first smoke concentration and the second smoke concentration can be determined according to the fire size and the preset corresponding relationship between the fire size and the smoke concentration. It can be understood that generally, when the fire size of the first combustion part is large, it indicates that the cooking activity in the area corresponding to the left channel 10a is intense, and the oil fume generation speed is fast. Similarly, when the fire size of the second combustion part is large, it indicates that the cooking activity in the area corresponding to the right channel 10b is intense, and the oil fume generation speed is fast. The corresponding relationship between the fire size and the smoke concentration can be obtained through a large amount of experimental data analysis and model establishment, so as to accurately determine the corresponding smoke concentration change under different fire conditions, and then obtain the first smoke concentration and the second smoke concentration, thereby providing a reliable basis for subsequent intelligent control.

[0101] In this embodiment, the range hood further comprises a wireless communication device 30, which is wirelessly connected with the cooktop. The cooktop comprises a first valve and a second valve, the first valve is used to adjust the firepower of the first combustion part, and the second valve is used to adjust the firepower of the second combustion part. It can be understood that when the valve opening is larger, more gas is generally supplied to support larger firepower, and vice versa. Therefore, by acquiring the opening size of the first valve and the second valve through the wireless communication device 30, the firepower corresponding to the first combustion part and the second combustion part can be obtained, and then the first smoke concentration and the second smoke concentration can be obtained through the preset corresponding relationship between the firepower and the smoke concentration.

[0102] In this embodiment, the range hood establishes a wireless communication link with the cooktop through the built-in wireless communication device 30. Specifically, the first valve and the second valve on the cooktop control the gas flow of the first combustion part and the second combustion part respectively, so as to adjust the firepower. The state information (such as the opening size) of these valves is transmitted to the wireless communication device 30 in the range hood in real time through wireless signals. After receiving these data, the range hood can quickly analyze and calculate the firepower state of the two combustion parts.

[0103] In this embodiment, after obtaining the firepower of the first combustion part and the second combustion part, the first smoke concentration and the second smoke concentration can be determined according to the firepower and the preset corresponding relationship between the firepower and the smoke concentration. It can be understood that generally, when the firepower of the first combustion part is larger, it indicates that the cooking activity in the region corresponding to the left channel 10a is more intense, and the speed of cooking fume generation is faster. Similarly, when the firepower of the second combustion part is larger, it indicates that the cooking activity in the region corresponding to the right channel 10b is more intense, and the speed of cooking fume generation is faster. The corresponding relationship between the firepower and the smoke concentration can be obtained through a large amount of experimental data analysis and modeling, which ensures that the corresponding smoke concentration change can be accurately determined under different firepower conditions, and then the first smoke concentration and the second smoke concentration are obtained to provide a reliable basis for subsequent intelligent control.

[0104] It can be understood that, under the same firepower size, different food materials and different cooking methods will produce different concentrations of smoke, so after obtaining the firepower size of the first combustion part and the second combustion part alone, and according to the correspondence between the firepower size and the preset smoke concentration, the first smoke concentration and the second smoke concentration determined may deviate from the actual smoke concentration. At the same time, when the smoke detection device is used alone to detect the first smoke concentration and the second smoke concentration, most smoke detection devices are not sensitive to water vapor, so in a kitchen environment with high humidity, especially when a large amount of water vapor is generated during cooking, the accuracy of the smoke detection device may be affected. Therefore, in order to further improve the accuracy of smoke concentration detection, the range hood in the present application can select multiple of the smoke detection device, the temperature detection device and the wireless communication device to combine to realize accurate detection of the first smoke concentration and the second smoke concentration. The specific combination method can be flexibly adjusted according to the needs of different users in specific scenarios, which is not limited here.

[0105] In the embodiment, the range hood has an oil fume suction channel 10 and a flow splitting structure 2 arranged in the oil fume suction channel 10, and the flow splitting structure 2 divides the oil fume suction channel 10 into a left channel 10a and a right channel 10b. The range hood control method obtains a first smoke concentration of an area corresponding to the left channel 10a and a second smoke concentration of an area corresponding to the right channel 10b. Then, according to the first smoke concentration and the second smoke concentration, the flow splitting structure 2 adjusts the size of the left channel 10a and the right channel 10b to control the smoke suction amount of the left channel 10a and the right channel 10b, so as to reduce the size of the channel corresponding to the side with less oil fume, improve the smoke suction capacity of the channel corresponding to the side with more oil fume, reduce the smoke suction capacity of the channel corresponding to the side with less oil fume, and improve the smoke suction effect of the range hood.

[0106] The above only describes some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A range hood control method, characterized by, The range hood has an oil fume suction channel and a flow splitting structure arranged in the oil fume suction channel, which splits the oil fume suction channel into a left channel and a right channel; The range hood control method comprises: obtaining a first smoke concentration of a region corresponding to the left channel and a second smoke concentration of a region corresponding to the right channel; and controlling the flow splitting structure to adjust the sizes of the left channel and the right channel according to the first smoke concentration and the second smoke concentration, so as to correspondingly control the smoke suction amounts of the left channel and the right channel.

2. The range hood control method of claim 1, wherein, The flow splitting structure comprises a rotating part rotatably arranged in the oil fume suction channel, and the step of controlling the flow splitting structure to adjust the sizes of the left channel and the right channel according to the first smoke concentration and the second smoke concentration, so as to correspondingly control the smoke suction amounts of the left channel and the right channel, specifically comprises: controlling the rotating angle of the rotating part according to the first smoke concentration and the second smoke concentration, so as to control the flow splitting structure to adjust the sizes of the left channel and the right channel, thereby correspondingly controlling the smoke suction amounts of the left channel and the right channel.

3. The range hood control method of claim 1 or 2, wherein, The step of controlling the flow splitting structure to adjust the sizes of the left channel and the right channel according to the first smoke concentration and the second smoke concentration, so as to correspondingly control the smoke suction amounts of the left channel and the right channel, comprises: when the first smoke concentration is greater than the second smoke concentration, controlling the flow splitting structure to act, so as to increase the smoke suction amount of the left channel and reduce the smoke suction amount of the right channel, so that the smoke suction amount of the left channel is greater than that of the right channel; when the first smoke concentration is less than the second smoke concentration, controlling the flow splitting structure to act, so as to increase the right channel and reduce the left channel, so that the smoke suction amount of the right channel is greater than that of the left channel; when the first smoke concentration is equal to the second smoke concentration, controlling the flow splitting structure to act, so that the sizes of the left channel and the right channel are equal, so that the smoke suction amount of the left channel is equal to that of the right channel.

4. The range hood control method of any one of claims 1-3, wherein, The step of controlling the flow splitting structure to adjust the sizes of the left channel and the right channel according to the first smoke concentration and the second smoke concentration, so as to correspondingly control the smoke suction amounts of the left channel and the right channel, comprises: determining a smoke suction amount distribution ratio of the left channel and the right channel according to the ratio of the first smoke concentration and the second smoke concentration; controlling the flow splitting structure to act to adjust the sizes of the left channel and the right channel according to the smoke suction amount distribution ratio, so as to correspondingly control the smoke suction amounts of the left channel and the right channel.

5. The range hood control method of any one of claims 1-4, wherein, The step of controlling the flow splitting structure to adjust the sizes of the left channel and the right channel according to the first smoke concentration and the second smoke concentration, so as to correspondingly control the smoke suction amounts of the left channel and the right channel, comprises: when the first smoke concentration is lower than a first smoke concentration threshold, controlling the flow splitting structure to adjust the left channel to the minimum and the right channel to the maximum; when the second smoke concentration is lower than a second smoke concentration threshold, controlling the flow splitting structure to adjust the right channel to the minimum and the left channel to the maximum.

6. The range hood control method of any one of claims 1-5, wherein, The smoke machine can be used with the stove, the stove includes a first combustion part and a second combustion part, the left side channel is arranged corresponding to the first combustion part, the right side channel is arranged corresponding to the second combustion part, the first smoke concentration of the area corresponding to the left side channel and the second smoke concentration of the area corresponding to the right side channel are obtained, which includes: Obtaining the firepower size of the first combustion part and the firepower size of the second combustion part; According to the firepower size and the corresponding relationship between the preset firepower size and the smoke concentration, the first smoke concentration and the second smoke concentration are determined.

7. A range hood control apparatus characterized by comprising: The smoke machine control device includes a memory, a processor and a smoke machine control program stored on the memory and executable on the processor, and the smoke machine control program is configured to implement the steps of the smoke machine control method in any one of claims 1 to 6.

8. A range hood, characterized by The smoke machine has an oil smoke suction channel and a shunt structure arranged in the oil smoke suction channel, the shunt structure divides the oil smoke suction channel into a left side channel and a right side channel, and the smoke machine uses the smoke machine control method in any one of claims 1 to 6, or the smoke machine further includes the smoke machine control device in claim 7.

9. The range hood according to claim 8, wherein The shunt structure includes a rotating part rotatably arranged in the oil smoke suction channel, and the rotating part is used to rotate according to the first smoke concentration and the second smoke concentration to control the shunt structure to adjust the size of the left side channel and the right side channel, so as to correspondingly control the smoke suction amount of the left side channel and the right side channel.

10. The range hood according to claim 8 or 9, wherein The smoke machine further includes a smoke detection device arranged in the smoke machine, which is used to obtain the first smoke concentration of the area corresponding to the left side channel and the second smoke concentration of the area corresponding to the right side channel.

11. The hood as claimed in any one of claims 8 to 10, wherein, The smoke machine can be used with the stove, the stove includes a first combustion part and a second combustion part, the left side channel is arranged corresponding to the first combustion part, the right side channel is arranged corresponding to the second combustion part, the smoke machine further includes: Temperature detection device, the temperature detection device is used for obtaining the temperature of the first combustion part and the second combustion part, so as to obtain the corresponding firepower size according to the temperature of the first combustion part and the second combustion part.

12. The hood as claimed in claim 11, wherein, The smoke machine further includes a wireless communication device, the wireless communication device is wirelessly connected with the stove, the stove includes a first valve and a second valve, the first valve is used to adjust the firepower size of the first combustion part, the second valve is used to adjust the firepower size of the second combustion part; the wireless communication device is used to obtain the opening size of the first valve and the second valve, so as to obtain the firepower size of the first combustion part and the second combustion part.

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