Range hood control method and device and range hood

Abstract

The invention discloses a range hood control method and device and a range hood, relates to the technical field of kitchen appliances, and discloses the range hood control method and device and the range hood, the range hood is provided with an oil smoke suction channel and a flow dividing structure arranged in the oil smoke suction channel, and the flow dividing structure divides the oil smoke suction channel into a left side channel and a right side channel; the range hood control method comprises the following steps: acquiring a first smoke concentration of a corresponding area of a left channel and a second smoke concentration of a corresponding area of a right channel; according to the first smoke concentration and the second smoke concentration, the flow dividing structure is controlled to adjust the sizes 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, so that the channel corresponding to the small-amount smoke side can be narrowed, and the smoke suction capacity of the channel corresponding to the large-amount smoke side is improved; the smoke suction capacity of the channel corresponding to the side with a small amount of oil smoke is reduced, and the smoke suction effect of the range hood is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a range hood control method and device and a range hood. BACKGROUND

[0002] The range hood is usually installed above the cooking utensil, and can quickly draw away and discharge the smoke generated during food cooking.

[0003] 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 stove, and each burner is matched with an air inlet to realize uniform oil fume suction for the cooking utensils on the two burners.

[0004] 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 utensil on one burner performs the operation of frying, which generates a large amount of oil fume, and the cooking utensil on the other burner performs the operation of stewing, 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. When the uniform smoke suction is still adopted in these cooking scenarios, a large amount of oil fume on one side cannot be completely sucked, and the phenomenon of excessive wind on the other side occurs, thereby resulting in poor oil fume suction effect of the range hood. SUMMARY

[0005] 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.

[0006] To achieve the above-mentioned purpose, the present application provides a range hood control method, the range hood has an oil fume suction channel and a flow splitting structure arranged in the oil fume suction channel, and the flow splitting structure divides the oil fume suction channel into a left channel and a right channel; the range hood control method comprises:

[0007] 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

[0008] controlling the flow splitting structure to adjust the size 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 amount of the left channel and the right channel.

[0009] In an embodiment, 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 size 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 amount of the left channel and the right channel is specifically:

[0010] Based on the first smoke concentration and the second smoke concentration, the rotation angle of the rotating part is controlled to control the size of the left and right channels of the diversion structure, thereby correspondingly controlling the smoke extraction volume of the left and right channels.

[0011] In one embodiment, controlling the size of the left and right channels of the diversion structure to adjust the smoke extraction volume of the left and right channels according to the first smoke concentration and the second smoke concentration includes:

[0012] When the first smoke concentration is greater than the second smoke concentration, the diversion structure is controlled to increase the smoke extraction volume of the left channel and decrease the smoke extraction volume of the right channel, so that the smoke extraction volume of the left channel is greater than the smoke extraction volume of the right channel.

[0013] When the first smoke concentration is less than the second smoke concentration, the diversion structure is controlled to increase the right channel and decrease the left channel, so that the smoke extraction volume of the right channel is less than the smoke extraction volume of the left channel.

[0014] When the first smoke concentration is equal to the second smoke concentration, the diversion structure is controlled to make the size of the left channel and the right channel equal, so that the smoke extraction volume of the left channel is equal to the smoke extraction volume of the right channel.

[0015] In one embodiment, controlling the size of the left and right channels of the diversion structure to adjust the smoke extraction volume of the left and right channels according to the first smoke concentration and the second smoke concentration includes:

[0016] The smoke extraction ratio between the left and right channels is determined based on the ratio of the first smoke concentration to the second smoke concentration.

[0017] According to the smoke extraction volume distribution ratio, the action of the diversion structure is controlled to adjust the size of the left and right channels, so as to control the smoke extraction volume of the left and right channels accordingly.

[0018] In one embodiment, when the first smoke concentration is lower than the first smoke concentration threshold, the control diversion structure adjusts the left channel to the minimum and the right channel to the maximum.

[0019] When the second smoke concentration is lower than the second smoke concentration threshold, the control diversion structure adjusts the right channel to the minimum and the left channel to the maximum.

[0020] In one embodiment, the range hood can be used in conjunction with a cooktop, the cooktop including a first combustion section and a second combustion section, the left channel corresponding to the first combustion section, and the right channel corresponding to the second combustion section. Obtaining the first smoke concentration in the area corresponding to the left channel and the second smoke concentration in the area corresponding to the right channel includes:

[0021] Obtain the firepower of the first combustion section and the firepower of the second combustion section;

[0022] The first smoke concentration and the second smoke concentration are determined based on the firepower level and the preset correspondence between firepower level and smoke concentration.

[0023] In addition, to achieve the above objectives, this application also proposes a range hood, which has an oil fume extraction channel and a diversion structure disposed within the oil fume extraction channel, the diversion structure dividing the oil fume extraction channel into a left channel and a right channel, the range hood using the range hood control method described above, or the range hood further includes the range hood control device described above.

[0024] In one embodiment, the diversion structure includes a rotating part rotatably disposed in the fume extraction channel. The rotating part is used to rotate along the fixed part according to the first smoke concentration and the second smoke concentration to control the diversion structure to adjust the size of the left channel and the right channel, thereby correspondingly controlling the smoke extraction volume of the left channel and the right channel.

[0025] In one embodiment, the smoke hood further includes a smoke detection device, which is disposed on the smoke hood and is used to obtain a first smoke concentration in the area corresponding to the left channel and a second smoke concentration in the area corresponding to the right channel.

[0026] In one embodiment, the range hood can be used in conjunction with a cooktop, the cooktop including a first combustion section and a second combustion section, the left channel corresponding to the first combustion section, and the right channel corresponding to the second combustion section. The range hood further includes:

[0027] A temperature detection device is used to acquire the temperatures of the first combustion section and the second combustion section, so as to obtain the corresponding firepower based on the temperatures of the first combustion section and the second combustion section.

[0028] In the technical solution of this application, the range hood has a fume extraction channel and a diversion structure disposed within the fume extraction channel. The diversion structure divides the fume extraction channel into a left channel and a right channel. The range hood control method obtains a first smoke concentration in the area corresponding to the left channel and a second smoke concentration in the area corresponding to the right channel. Based on the first and second smoke concentrations, the diversion structure is controlled to adjust the size of the left and right channels to correspondingly control the smoke extraction volume of the left and right channels. This reduces the size of the channel corresponding to a small amount of fume, increases the smoke extraction capacity of the channel corresponding to a large amount of fume, and decreases the smoke extraction capacity of the channel corresponding to a small amount of fume, thereby improving the smoke extraction effect of the range hood. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a flowchart illustrating an embodiment of the smoke machine control method of this application;

[0032] Figure 2 This is a flowchart illustrating another embodiment of the smoke machine control method of this application;

[0033] Figure 3 This is a flowchart illustrating yet another embodiment of the smoke machine control method of this application;

[0034] Figure 4 A flowchart illustrating yet another embodiment of the smoke machine control method of this application;

[0035] Figure 5 A flowchart is provided for another embodiment of the smoke machine control method of this application;

[0036] Figure 6 This is a flowchart illustrating another embodiment of the smoke machine control method of this application;

[0037] Figure 7 This is a schematic diagram of the structure of an embodiment of the smoke machine of this application;

[0038] Figure 8 This is a schematic diagram of the flow diversion structure provided in one embodiment of the smoke machine of this application;

[0039] Figure 9 This is a circuit diagram of an embodiment of the tobacco machine control device of this application.

[0040] Explanation of icon numbers:

[0041] 10. Fume extraction duct; 2. Diversion structure; 10a. Left duct; 10b. Right duct; 21. Rotating part; 22. Fixed part; 30. Wireless communication device; 40. Memory; 50. Processor.

[0042] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] In existing technology, range hoods are usually installed above cooking appliances to quickly remove and exhaust the fumes generated during cooking. To accommodate the layout of dual burners on the left and right sides of a kitchen stove, existing range hoods often have two air inlets on the left and right sides to match the operation of the stove, with one air inlet for each burner, so as to achieve even fume extraction from the cooking appliances on both burners.

[0045] However, in some cooking scenarios, users may only use one burner, resulting in a large amount of smoke being generated below one air intake, while only a small amount of smoke is diffused below the other. Alternatively, one burner may be used for frying or stir-frying, producing a lot of smoke, while another burner is used for simmering or stewing, producing a small amount of smoke. In these scenarios, if a uniform smoke extraction method is used, the side with the large amount of smoke will not be completely removed, while the side with the small amount of smoke will experience excessive airflow, resulting in poor smoke extraction performance of the range hood.

[0046] Based on this, the present application provides a method for controlling a smoke hood.

[0047] refer to Figure 7This application's range hood has a fume extraction channel 10 and a diversion structure 2 disposed within the fume extraction channel 10, which divides the fume extraction channel 10 into a left channel 10a and a right channel 10b. One end of the fume extraction 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 discharge the extracted fumes directly or after filtration and purification to the outside. The diversion structure 2 can be composed of one or more adjustable baffles or partitions, and can be movably connected to the outer casing of the range hood or other fixed installation positions, thereby flexibly adjusting its position or angle to adjust the size of the left channel 10a and the right channel 10b. Specifically, these baffles or partitions can be electrically controlled, and their positions can be precisely adjusted by a motor or drive device inside the range hood.

[0048] It should be noted that adjusting the size of the left channel 10a and the right channel 10b referred to here does not mean adjusting the size of all positions within the left channel 10a and the right channel 10b, but rather adjusting the size of the minimum connecting cross section of the left and right channels 10a and the right channel 10b. The minimum connecting cross section is the throat of the corresponding channel, and its size is directly proportional to the smoke extraction capacity of the corresponding channel. The diversion structure 2 divides the fume extraction channel 10 into the left channel 10a and the right channel 10b, reducing the eddies caused by the mixing and collision of the two streams of oil fumes entering the fume extraction channel 10 from the left channel 10a and the right channel 10b respectively, improving the smoothness of the oil fumes passing through the fume extraction channel 10, thereby improving the smoke extraction effect of the range hood and reducing noise.

[0049] refer to Figure 1 The smoke control method proposed in this application includes steps S100 to S200:

[0050] Step S100: Obtain the first smoke concentration in the area corresponding to the left channel 10a and the second smoke concentration in the area corresponding to the right channel 10b.

[0051] It should be noted that the area corresponding to the left passage 10a can be the cooking area directly below or near the left passage 10a, typically corresponding to the area above the stove or cooking appliance on the left side of the kitchen. Similarly, the area corresponding to the right passage 10b refers to the cooking area directly below or near the right passage 10b, corresponding to the stove or cooking appliance on the right side of the kitchen. The first smoke concentration is the density of oil fumes in the area corresponding to the left passage 10a, reflecting the rate at which oil fumes are generated in that area. A higher first smoke concentration indicates a faster rate of oil fume generation in the area of ​​the left passage 10a, while a lower first smoke concentration indicates a slower rate of oil fume generation in the area of ​​the left passage 10a. Similarly, the second smoke concentration is the density of oil fumes in the area corresponding to the right passage 10b, reflecting the rate at which oil fumes are generated in the area of ​​the right passage 10b.

[0052] In one feasible implementation, the smoke hood includes a smoke detection device disposed on the smoke hood, which is used to obtain a first smoke concentration in the area corresponding to the left channel 10a and a second smoke concentration in the area corresponding to the right channel 10b.

[0053] In this embodiment, the smoke detection device can be one or more infrared sensors. When there is only one infrared sensor, its detection range can be rotated or translated to cover the cooking areas corresponding to the left channel 10a and the right channel 10b, thereby alternately acquiring the first smoke concentration and the second smoke concentration of the two areas. When there are multiple infrared sensors, independent infrared sensors can be set above the corresponding cooking areas of the left channel 10a and the right channel 10b respectively to achieve real-time and independent monitoring of the smoke concentration of the two areas.

[0054] In this embodiment, the range hood can be used in conjunction with a cooktop. The cooktop includes a first combustion section and a second combustion section. The left channel 10a is provided corresponding to the first combustion section, and the right channel 10b is provided corresponding to the second combustion section. The range hood also includes a temperature detection device, which is used to obtain the firepower of the first combustion section and the second combustion section.

[0055] In this embodiment, the first and second combustion sections correspond to two independent cooking areas in the kitchen, allowing users to cook simultaneously from different locations. For a dual-burner stove, the first and second combustion sections correspond to the left and right burner positions, respectively. The temperature detection device can be configured as multiple thermistors or infrared temperature sensors, installed near the first and second combustion sections of the stove. The temperature detection device can monitor the temperature of the two combustion sections in real time and accurately, and determine the corresponding heat level (i.e., the heat level of the first and second combustion sections) to indirectly reflect the rate of smoke generation, thus characterizing the first and second smoke concentrations.

[0056] In this embodiment, the range hood further includes a wireless communication device, which is wirelessly connected to the cooktop. The cooktop includes a first valve and a second valve. The first valve is used to adjust the heat output of the first combustion chamber, and the second valve is used to adjust the heat output of the second combustion chamber. It is understood that a larger valve opening generally supplies more gas to support a higher heat output, and vice versa. Therefore, by obtaining the opening sizes of the first and second valves through the wireless communication device, the corresponding heat output of the first and second combustion chambers can be obtained. Furthermore, by using a preset correspondence between heat output and smoke concentration, the first and second smoke concentrations can be obtained.

[0057] In this embodiment, by obtaining the first smoke concentration and the second smoke concentration, accurate data support can be provided for subsequently adjusting the size of the left channel 10a and the right channel 10b to control the smoke extraction volume of the left channel 10a and the right channel 10b accordingly.

[0058] Step S200: Based on the first smoke concentration and the second smoke concentration, control the diversion structure 2 to adjust the size of the left channel 10a and the right channel 10b, so as to control the smoke extraction volume of the left channel 10a and the right channel 10b accordingly.

[0059] In this embodiment, the size of the left channel 10a and the right channel 10b can be adjusted by the diversion structure 2 based on the difference, ratio, or relationship between the first and second smoke concentrations and preset smoke concentration thresholds, thereby controlling the smoke extraction volume of the left and right channels 10a and 10b respectively. For example, when the first smoke concentration is higher than the second smoke concentration, it indicates that the oil fumes generated in the left cooking area are more concentrated. In this case, the range hood control device will automatically adjust the diversion structure 2, increasing the size of the left channel 10a and correspondingly decreasing the size of the right channel 10b to ensure that the left channel 10a can more effectively extract and remove high-concentration oil fumes. Conversely, if the second smoke concentration is significantly higher than the first smoke concentration, the opposite adjustment strategy is adopted to strengthen the extraction capacity of the right channel 10b. When the first and second smoke concentrations are similar, the relative balance between the two channels is maintained. For another example, when the ratio of the first and second smoke concentrations deviates significantly from 1, it means that there is a significant difference in the oil fume generation in the two cooking areas. The range hood control device can precisely adjust the ratio of the left channel 10a and the right channel 10b based on this ratio, ensuring that the smoke extraction volume matches the actual distribution of cooking fumes. Specifically, if the ratio of the first smoke concentration to the second smoke concentration is greater than a certain value (e.g., 1.5), it indicates that the smoke concentration in the left channel 10a is higher than that in the right. In this case, the opening size of the left channel 10a can be increased, while the opening size of the right channel 10b can be decreased accordingly to optimize the overall smoke extraction effect. Conversely, if the ratio is less than a certain value (e.g., 0.8), the adjustment strategy is reversed, strengthening the extraction capacity of the right channel 10b. For example, when the first smoke concentration or the second smoke concentration is below a certain smoke concentration threshold, it can be determined that the area corresponding to the left channel 10a or the area corresponding to the right channel 10b is not being cooked. In this case, the diversion structure 2 can be controlled to adjust the channel corresponding to the uncooked area to its minimum, while adjusting the channel on the other side to its maximum.

[0060] In this embodiment, the range hood has a fume extraction channel 10 and a diversion structure 2 disposed within the fume extraction channel 10. The diversion structure 2 divides the fume extraction channel 10 into a left channel 10a and a right channel 10b. The range hood control method obtains a first smoke concentration in the area corresponding to the left channel 10a and a second smoke concentration in the area corresponding to the right channel 10b. Based on the first and second smoke concentrations, the diversion structure 2 is controlled to adjust the size of the left channel 10a and the right channel 10b to correspondingly control the smoke extraction volume of the left channel 10a and the right channel 10b. This reduces the size of the channel corresponding to a small amount of oil fumes, increases the smoke extraction capacity of the channel corresponding to a large amount of oil fumes, and decreases the smoke extraction capacity of the channel corresponding to a small amount of oil fumes, thereby improving the smoke extraction effect of the range hood.

[0061] In one feasible implementation, when the range hood can be used in conjunction with a cooktop, the cooktop includes a first combustion section and a second combustion section, the left channel 10a is disposed corresponding to the first combustion section, and the right channel 10b is disposed corresponding to the second combustion section. (Reference) Figure 6 Step S100, obtaining the first smoke concentration in the region corresponding to the left channel 10a and the second smoke concentration in the region corresponding to the right channel 10b, includes:

[0062] Step S110: Obtain the firepower of the first combustion section and the firepower of the second combustion section.

[0063] In this embodiment, the heat intensity of the first combustion section and the second combustion section can be obtained through a temperature detection device. This temperature detection device can be configured as multiple thermistors or infrared temperature sensors, respectively installed near the first and second combustion sections of the stove. The temperature detection device can monitor the temperature of the two combustion sections in real time and accurately, thereby determining the heat intensity corresponding to the detected temperature (i.e., the heat intensity of the first combustion section and the heat intensity of the second combustion section). In this way, the rate of oil fume generation can be indirectly reflected, thus characterizing the first smoke concentration and the second smoke concentration.

[0064] Specifically, a thermistor changes its resistance based on changes in ambient temperature. When the combustion chamber's heat increases, the ambient temperature rises, and the thermistor's resistance decreases accordingly, and vice versa. By measuring the change in the thermistor's resistance, or the resulting change in current or voltage in related circuits, the combustion chamber's heat level can be calculated, providing data support for subsequent intelligent control. An infrared temperature sensor measures temperature based on infrared radiation principles. It receives infrared radiation emitted by the combustion chamber, converts it into an electrical signal, processes it, and obtains the real-time temperature of the combustion chamber, thereby determining the corresponding heat level.

[0065] In one feasible implementation, the stove includes a first valve and a second valve. The first valve is used to adjust the flame intensity of the first combustion section, and the second valve is used to adjust the flame intensity of the second combustion section. It is understood that a larger valve opening generally supplies more gas to support a higher flame intensity, and vice versa. Therefore, the opening degrees of the first and second valves can be obtained through a wireless communication device connected to the stove, thus allowing the acquisition of the corresponding flame intensity of the first and second combustion sections.

[0066] Step S120: Determine the first smoke concentration and the second smoke concentration based on the firepower level and the preset correspondence between firepower level and smoke concentration.

[0067] Understandably, a higher heat output from the first combustion chamber generally indicates more intense cooking activity and faster smoke generation in the area corresponding to the left channel 10a. Similarly, a higher heat output from the second combustion chamber indicates more intense cooking activity and faster smoke generation in the area corresponding to the right channel 10b. The heat output and the preset relationship between heat output and smoke concentration can be derived through extensive experimental data analysis and model building. This ensures accurate determination of smoke concentration changes under different heat output conditions, thereby obtaining the first and second smoke concentrations. This provides a reliable basis for subsequently controlling the diversion structure to adjust the size of the left and right channels, and correspondingly controlling the smoke extraction volume of the left and right channels.

[0068] In one feasible implementation, refer to Figure 8 The diversion structure 2 may include a rotating part 21 rotatably disposed within the fume extraction channel 10, which adjusts the size of the left channel 10a and the right channel 10b, thereby adjusting their fume extraction capabilities. When the rotating part 21 rotates relative to the left channel 10a, it reduces the fume extraction capability of the left channel 10a while increasing the fume extraction capability of the right channel 10b. Conversely, when the rotating part 21 rotates relative to the right channel 10b, it reduces the fume extraction capability of the right channel 10b while increasing the fume extraction capability of the left channel 10a.

[0069] In one feasible implementation, refer to Figure 2 Step S200 includes step S210, which controls the rotation angle of the rotating part according to the first smoke concentration and the second smoke concentration, so as to control the diversion structure to adjust the size of the left channel and the right channel, thereby correspondingly controlling the smoke extraction volume of the left channel and the right channel.

[0070] In this embodiment, for a dual-burner gas stove, the user may only use one of the left and right burners for cooking, resulting in a large amount of oil fumes being generated below one of the left channel 10a and the right channel 10b, while a small amount of oil fumes diffuse below the other. Alternatively, when the user uses both burners simultaneously, one burner may be used for frying or other operations that generate a large amount of oil fumes, while the other burner may be used for simmering or other operations that generate a small amount of oil fumes. This results in a large amount of oil fumes being generated below one of the left channel 10a and the right channel 10b, while a small amount of oil fumes are generated below 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 fumes is enlarged, while the channel corresponding to the side with a small amount of oil fumes is reduced. This improves the smoke extraction capacity of the channel corresponding to the side with a large amount of oil fumes and reduces the smoke extraction capacity of the channel corresponding to the side with a small amount of oil fumes, thereby improving the smoke extraction effect of the range hood.

[0071] In this embodiment, when the smoke concentration below one of the left channel 10a and the right channel 10b is greater, and / or the smoke concentration below the other of the left channel 10a and the right channel 10b is smaller, the angle at which the rotating part 21 rotates relative to the channel with the lower smoke concentration is larger, so as to more significantly adjust the smoke extraction capacity of the left channel 10a and the right channel 10b. In this way, it can be ensured that the smoke on the side with a large amount of smoke can be completely extracted, and the phenomenon of excessive airflow on the side with a small amount of smoke can be prevented, thereby improving the smoke extraction effect of the range hood.

[0072] In one feasible implementation, refer to Figure 3 Step S200 includes S210A, where when the first smoke concentration is greater than the second smoke concentration, the diversion structure 2 is controlled to operate, increasing the smoke extraction volume of the left channel 10a and decreasing the smoke extraction volume of the right channel 10b, so that the smoke extraction volume of the left channel 10a is greater than the smoke extraction volume of the right channel 10b.

[0073] When the first smoke concentration is less than the second smoke concentration, the diversion structure 2 is controlled to operate, increasing the right channel 10b and decreasing the left channel 10a, so that the smoke extraction volume of the right channel 10b is less than the smoke extraction volume of the left channel 10a.

[0074] When the first smoke concentration is equal to the second smoke concentration, the diversion structure 2 is controlled to operate so that the size of the left channel 10a and the right channel 10b are equal, so that the smoke extraction volume of the left channel 10a is equal to the smoke extraction volume of the right channel 10b.

[0075] In this embodiment, when the first smoke concentration is greater than the second smoke concentration, the diversion structure 2 adjusts to increase the smoke extraction volume of the left channel 10a while decreasing the smoke extraction volume of the right channel 10b. This ensures that the smoke extraction volume of the left channel 10a exceeds that of the right channel 10b, thereby more effectively clearing areas with higher smoke concentrations. For example, if in a dual-channel ventilation system, the smoke concentration detected by the left channel 10a is 100 ppm, while the smoke concentration of the right channel 10b is 50 ppm, the diversion structure 2 should be adjusted so that the extraction volume of the left channel 10a is greater than that of the right channel 10b, ensuring 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 diversion structure 2 adjusts to increase the smoke extraction volume of the right channel 10b while decreasing the smoke extraction volume of the left channel 10a. This will ensure that the smoke extraction volume of the right channel 10b exceeds that of the left channel 10a, thereby more effectively handling areas with higher smoke concentrations. For example, if the smoke concentration in the left channel 10a is 50 ppm and the smoke concentration in the right channel 10b is 100 ppm, the diversion structure 2 should be adjusted so that the suction volume 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 equals the second smoke concentration, the diversion structure 2 is adjusted to keep the smoke suction volumes of the left channel 10a and the right channel 10b equal. This ensures that the smoke suction volumes of the two channels are the same, thus processing the smoke evenly. For example, if the smoke concentrations of the left channel 10a and the right channel 10b are both 80 ppm, the diversion structure 2 should be adjusted so that the suction volumes of the two channels are equal, to ensure that the smoke can be removed evenly.

[0076] In this embodiment, when the first smoke concentration is not equal to the second smoke concentration, the adjustment strategy of the diversion structure 2 can be further refined based on the difference between the two concentrations to achieve more precise and efficient smoke extraction control. Specifically, when the first smoke concentration is greater than the second smoke concentration, and the greater the difference between them, the greater the increase in smoke extraction volume of the left channel 10a should be, while the decrease in smoke extraction volume of the right channel 10b should also increase accordingly, to ensure that the left channel 10a can quickly and effectively cope with the challenge of high-concentration fumes. Conversely, if the second smoke concentration is significantly higher than the first smoke concentration, and the difference is large, the increase in smoke extraction volume of the right channel 10b should be more significant, while the left channel 10a should correspondingly reduce its extraction volume to quickly reduce the high-concentration fumes in the right channel 10b. This improves the adaptability of the range hood in different cooking scenarios and enhances its intelligence, thereby optimizing the user experience.

[0077] In one feasible implementation, refer to Figure 4Step S200 includes S210B, determining the smoke extraction volume 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; according to the smoke extraction volume distribution ratio, controlling the diversion structure 2 to adjust the size of the left channel 10a and the right channel 10b, so as to correspondingly control the smoke extraction volume of the left channel 10a and the right channel 10b.

[0078] In this embodiment, when the ratio of the first smoke concentration to the second smoke concentration is greater than 1, the diversion structure 2 is controlled to operate, increasing the smoke extraction volume of the left channel 10a and decreasing the smoke extraction volume of the right channel 10b, so that the smoke extraction volume of the left channel 10a is greater than the smoke extraction volume of the right channel 10b; when the ratio of the first smoke concentration to the second smoke concentration is less than 1, the diversion structure 2 is controlled to operate, increasing the right channel 10b and decreasing the left channel 10a, so that the smoke extraction volume of the right channel 10b is less than the smoke extraction volume of the left channel 10a; when the ratio of the first smoke concentration to the second smoke concentration is equal to 1, the diversion structure 2 is controlled to operate, making the left channel 10a and the right channel 10b equal in size, so that the smoke extraction volume of the left channel 10a is equal to the smoke extraction volume of the right channel 10b.

[0079] In this embodiment, when the ratio of the first smoke concentration to the second smoke concentration is greater than 1, the diversion structure 2 is adjusted to increase the smoke extraction volume of the left channel 10a while decreasing the smoke extraction volume of the right channel 10b. This ensures that the smoke extraction volume of the left channel 10a exceeds that of the right channel 10b, thereby more effectively clearing areas with high smoke concentrations. For example, if in a dual-channel ventilation system, the smoke concentration detected in the left channel 10a is 100 ppm, while the smoke concentration in the right channel 10b is 50 ppm, the diversion structure 2 should be adjusted so that the extraction volume of the left channel 10a is greater than that of the right channel 10b, ensuring that the left channel 10a can reduce the smoke concentration more quickly. When the ratio of the first smoke concentration to the second smoke concentration is less than 1, the diversion structure 2 is adjusted to increase the smoke extraction volume of the right channel 10b while decreasing the smoke extraction volume of the left channel 10a. This will ensure that the smoke extraction volume of the right channel 10b exceeds that of the left channel 10a, thus more effectively handling areas with high smoke concentrations. For example, if the smoke concentration in the left channel 10a is 50 ppm and the smoke concentration in the right channel 10b is 100 ppm, the diversion structure 2 should be adjusted so that the suction volume 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 ratio of the first smoke concentration to the second smoke concentration is equal to 1, the diversion structure 2 is adjusted to keep the smoke suction volumes of the left channel 10a and the right channel 10b equal. This ensures that the smoke suction volumes of the two channels are the same, thus processing the smoke evenly. For example, if the smoke concentrations of the left channel 10a and the right channel 10b are both 80 ppm, the diversion structure 2 should be adjusted so that the suction volumes of the two channels are equal, to ensure that the smoke can be removed evenly.

[0080] In this embodiment, the adjustment rate and amplitude of the diversion structure 2 can be adjusted according to the ratio of the first smoke concentration to the second smoke concentration to further optimize smoke treatment efficiency. Specifically, when the ratio of the first smoke concentration to the second smoke concentration deviates significantly from 1, it indicates a large difference in smoke concentration between the two channels. In this case, the adjustment speed of the diversion structure 2 can be accelerated and the adjustment amplitude increased to quickly balance the smoke extraction capacity of the two channels, achieving rapid response and effective treatment of high-concentration smoke. For example, if the smoke concentration of the left channel 10a is 150 ppm, while that of the right channel 10b is only ppm, and the ratio is much higher than 1, the system should not only rapidly increase the extraction volume of the left channel 10a and decrease the extraction volume of the right channel 10b, but also appropriately increase the acceleration of this adjustment process, so that the left channel 10a can reach a highly efficient smoke removal state more quickly, while avoiding the right channel 10b from wasting resources or generating unnecessary noise due to excessive extraction. On the other hand, if the ratio of the first smoke concentration to the second smoke concentration is close to but slightly higher or lower than 1, meaning the smoke concentrations in both channels are similar but slightly different, the system can adopt a more delicate adjustment strategy, slowly and precisely adjusting the diversion structure 2 to maintain a dynamic balance in the smoke extraction volume of both channels. This ensures effective smoke removal while avoiding the potential impact of frequent, large-scale adjustments on the stability and lifespan of the range hood.

[0081] In one feasible implementation, refer to Figure 5 Step S200 includes step S210C, where, 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.

[0082] In this embodiment, the first smoke concentration threshold and the second smoke concentration threshold correspond to the lowest detectable smoke concentration when the area corresponding to the left channel 10a and the area corresponding to the right channel 10b are 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 that channel is not currently producing significant smoke, and therefore there is no need to maintain a high smoke extraction volume. In order to save energy and extend the service life of the range hood, the system will intelligently adjust the diversion structure 2 according to the real-time changes in smoke concentration, so that the smoke extraction volume of the channel (left or right) that does not produce smoke is reduced to the minimum, that is, the channel is adjusted to the minimum to reduce unnecessary airflow and energy consumption. Specifically, when the first smoke concentration is lower than the first smoke concentration threshold, the control unit will send a command to the diversion structure 2 to quickly adjust it, reduce the opening of the left channel 10a to the minimum, and at the same time increase the opening of the right channel 10b to the maximum, so as to maximize the smoke extraction capacity of the right channel 10b and ensure that the smoke present in the right area can be effectively removed when there is no smoke in the left area. Conversely, when the second smoke concentration is below the second smoke concentration threshold, the system performs the opposite operation: narrowing the opening of the right channel 10b and widening the opening of the left channel 10a to accommodate the smoke extraction needs of the left area. This not only improves the intelligence level of the range hood but also significantly enhances its energy efficiency ratio in different cooking scenarios.

[0083] In this embodiment, the range hood has a fume extraction channel 10 and a diversion structure 2 disposed within the fume extraction channel 10. The diversion structure 2 divides the fume extraction channel 10 into a left channel 10a and a right channel 10b. The range hood control method obtains a first smoke concentration in the area corresponding to the left channel 10a and a second smoke concentration in the area corresponding to the right channel 10b. Based on the first and second smoke concentrations, the diversion structure 2 is controlled to adjust the size of the left channel 10a and the right channel 10b to correspondingly control the smoke extraction volume of the left channel 10a and the right channel 10b. This reduces the size of the channel corresponding to a small amount of oil fumes, increases the smoke extraction capacity of the channel corresponding to a large amount of oil fumes, and decreases the smoke extraction capacity of the channel corresponding to a small amount of oil fumes, thereby improving the smoke extraction effect of the range hood.

[0084] This application also provides a smoke hood control device, see reference. Figure 9 The smoke hood control device includes a memory 40, a processor 50, and a smoke hood control program stored in the memory 40 and executable on the processor 50. The smoke hood control program is configured to implement the steps of the smoke hood control method.

[0085] The smoke extraction control device provided in this application, employing the smoke extraction control method in the above embodiments, can improve the smoke extraction effect of the smoke extraction device. Compared with the prior art, the beneficial effects of the smoke extraction control device provided in this application are the same as those of the smoke extraction control method provided in the above embodiments, and other technical features in the smoke extraction control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0086] This application also provides a range hood, which has a fume extraction channel 10 and a diversion structure 2 disposed in the fume extraction channel 10. The diversion structure 2 divides the fume extraction channel 10 into a left channel 10a and a right channel 10b. The range hood uses the range hood control method described above, or the range hood further includes the range hood control device described above.

[0087] In one feasible implementation, refer to Figure 8 The diversion structure 2 may include a rotating part 21 rotatably disposed within the fume extraction channel 10, which adjusts the size of the left channel 10a and the right channel 10b, thereby adjusting their fume extraction capabilities. When the rotating part 21 rotates relative to the left channel 10a, it reduces the fume extraction capability of the left channel 10a while increasing the fume extraction capability of the right channel 10b. Conversely, when the rotating part 21 rotates relative to the right channel 10b, it reduces the fume extraction capability of the right channel 10b while increasing the fume extraction capability of the left channel 10a.

[0088] In this embodiment, for a dual-burner gas stove, the user may only use one of the left and right burners for cooking, resulting in a large amount of oil fumes being generated below one of the left channel 10a and the right channel 10b, while a small amount of oil fumes diffuse below the other. Alternatively, when the user uses both burners simultaneously, one burner may be used for frying or other operations that generate a large amount of oil fumes, while the other burner may be used for simmering or other operations that generate a small amount of oil fumes. This results in a large amount of oil fumes being generated below one of the left channel 10a and the right channel 10b, while a small amount of oil fumes are generated below 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 fumes is enlarged, while the channel corresponding to the side with a small amount of oil fumes is reduced. This improves the smoke extraction capacity of the channel corresponding to the side with a large amount of oil fumes and reduces the smoke extraction capacity of the channel corresponding to the side with a small amount of oil fumes, thereby improving the smoke extraction effect of the range hood.

[0089] In one feasible implementation, the smoke hood includes a smoke detection device disposed on the smoke hood, which is used to obtain a first smoke concentration in the area corresponding to the left channel 10a and a second smoke concentration in the area corresponding to the right channel 10b.

[0090] In this embodiment, the smoke detection device can be one or more infrared sensors. When there is only one infrared sensor, its detection range can be rotated or translated to cover the cooking areas corresponding to the left channel 10a and the right channel 10b, thereby alternately acquiring the first smoke concentration and the second smoke concentration of the two areas. When there are multiple infrared sensors, independent infrared sensors can be set above the corresponding cooking areas of the left channel 10a and the right channel 10b respectively to achieve real-time and independent monitoring of the smoke concentration of the two areas.

[0091] Specifically, infrared sensors include infrared light sources such as infrared light-emitting diodes (LEDs) and infrared light receivers (such as photodiodes or phototransistors). The infrared light source continuously emits infrared light of a specific wavelength (such as 940nm, 850nm, etc.). When oil fume particles enter the propagation path of the infrared light, some of the infrared light is 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, providing a reliable basis for subsequent intelligent control.

[0092] In this embodiment, the smoke detection device can also be a color sensor. The color sensor has three color channels: red, green, and blue. The photodiode in each channel is only sensitive to light within the wavelength range corresponding to red, green, or blue light. This allows the color detection device to determine the intensity of red, green, and blue light in a certain area after receiving light from that area. Then, by calculating the light intensity ratio of the three color channels, the color of that area and its changes can be determined, thereby determining the first smoke concentration and the second smoke concentration.

[0093] In this embodiment, the smoke detection device can also be a camera, which can capture image or video information of the target area, process and analyze it, and obtain the color of the target area and its changes. Of course, the smoke detection device can also use other devices capable of detecting smoke concentration, and can also use external devices capable of detecting smoke concentration to detect the first smoke concentration and the second smoke concentration, and then output the detection results to the control device of the smoke machine through wired or wireless communication, etc. The specific choice can be determined according to actual needs and scenarios, and is not limited here.

[0094] In one feasible implementation, the range hood can be used in conjunction with a cooktop, the cooktop including a first combustion section and a second combustion section, the left channel 10a corresponding to the first combustion section and the right channel 10b corresponding to the second combustion section, the range hood also including a temperature detection device, the temperature detection device being used to obtain the temperature of the first combustion section and the second combustion section, so as to obtain the corresponding firepower level according to the temperature of the first combustion section and the second combustion section.

[0095] In this embodiment, the first and second combustion sections correspond to two independent cooking areas in the kitchen, allowing users to cook simultaneously from different locations. For a dual-burner stove, the first and second combustion sections correspond to the left and right burner positions, respectively. The temperature detection device can be configured as multiple thermistors or infrared temperature sensors, installed near the first and second combustion sections of the stove. The temperature detection device can monitor the temperature of the two combustion sections in real time and accurately, thereby determining the corresponding heat output (i.e., the heat output of the first and second combustion sections) based on the detected temperature, thus indirectly reflecting the rate of oil fume generation.

[0096] Specifically, a thermistor changes its resistance based on changes in ambient temperature. When the combustion chamber's heat increases, the ambient temperature rises, and the thermistor's resistance decreases accordingly, and vice versa. By measuring the change in the thermistor's resistance, or the resulting change in current or voltage in related circuits, the combustion chamber's heat level can be calculated, providing data support for subsequent intelligent control. An infrared temperature sensor measures temperature using the principle of infrared radiation. It receives infrared radiation emitted by the combustion chamber, converts it into an electrical signal, and processes it to obtain the real-time temperature of the combustion chamber.

[0097] In this embodiment, after obtaining the heat intensity of the first and second combustion sections, the first and second smoke concentrations can be determined based on the heat intensity and a preset correspondence between heat intensity and smoke concentration. It is understood that, generally, a higher heat intensity in the first combustion section indicates more intense cooking activity and faster smoke generation in the area corresponding to the left channel 10a. Similarly, a higher heat intensity in the second combustion section indicates more intense cooking activity and faster smoke generation in the area corresponding to the right channel 10b. This heat intensity and preset correspondence between heat intensity and smoke concentration can be derived through extensive experimental data analysis and model building, ensuring accurate determination of smoke concentration changes under different heat intensity conditions, thereby obtaining the first and second smoke concentrations and providing a reliable basis for subsequent intelligent control.

[0098] In this embodiment, the range hood further includes a wireless communication device 30, which is wirelessly connected to the cooktop. The cooktop includes a first valve and a second valve. The first valve is used to adjust the heat output of the first combustion chamber, and the second valve is used to adjust the heat output of the second combustion chamber. It is understood that a larger valve opening generally supplies more gas to support a higher heat output, and vice versa. Therefore, by obtaining the opening sizes of the first and second valves through the wireless communication device 30, the corresponding heat output of the first and second combustion chambers can be obtained. Furthermore, by using a preset correspondence between heat output and smoke concentration, the first and second smoke concentrations can be obtained.

[0099] In this embodiment, the range hood establishes a wireless communication link with the cooktop via a built-in wireless communication device 30. Specifically, the first and second valves on the cooktop control the gas flow in the first and second combustion sections, respectively, thereby adjusting the heat output. The status information of these valves (such as their opening degree) is transmitted in real time to the wireless communication device 30 in the range hood via wireless signals. After receiving this data, the range hood can quickly analyze and calculate the current heat output status of the two combustion sections.

[0100] In this embodiment, after obtaining the heat intensity of the first and second combustion sections, the first and second smoke concentrations can be determined based on the heat intensity and a preset correspondence between heat intensity and smoke concentration. It is understood that, generally, a higher heat intensity in the first combustion section indicates more intense cooking activity and faster smoke generation in the area corresponding to the left channel 10a. Similarly, a higher heat intensity in the second combustion section indicates more intense cooking activity and faster smoke generation in the area corresponding to the right channel 10b. This heat intensity and preset correspondence between heat intensity and smoke concentration can be derived through extensive experimental data analysis and model building, ensuring accurate determination of smoke concentration changes under different heat intensity conditions, thereby obtaining the first and second smoke concentrations and providing a reliable basis for subsequent intelligent control.

[0101] It is understandable that, under the same heat output, different ingredients and cooking methods will produce different concentrations of smoke. Therefore, determining the first and second smoke concentrations solely based on the heat output of the first and second combustion sections and the preset correspondence between heat output and smoke concentration may deviate from the actual smoke concentrations. Furthermore, when using a single smoke detection device to detect the first and second smoke concentrations, the accuracy may be affected in high-humidity kitchen environments, especially when a large amount of water vapor is generated during cooking, as most smoke detection devices are not sensitive to water vapor. Therefore, to further improve the accuracy of smoke concentration detection, the range hood in this application can combine multiple devices, including smoke detection devices, temperature detection devices, and wireless communication devices, to achieve accurate detection of the first and second smoke concentrations. The specific combination can be flexibly adjusted according to specific scenarios and the needs of different users, and is not limited here.

[0102] In this embodiment, the range hood has a fume extraction channel 10 and a diversion structure 2 disposed within the fume extraction channel 10. The diversion structure 2 divides the fume extraction channel 10 into a left channel 10a and a right channel 10b. The range hood control method obtains a first smoke concentration in the area corresponding to the left channel 10a and a second smoke concentration in the area corresponding to the right channel 10b. Based on the first and second smoke concentrations, the diversion structure 2 is controlled to adjust the size of the left channel 10a and the right channel 10b to correspondingly control the smoke extraction volume of the left channel 10a and the right channel 10b. This reduces the size of the channel corresponding to a small amount of oil fumes, increases the smoke extraction capacity of the channel corresponding to a large amount of oil fumes, and decreases the smoke extraction capacity of the channel corresponding to a small amount of oil fumes, thereby improving the smoke extraction effect of the range hood.

[0103] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method for controlling a smoke hood, characterized in that, The range hood has an oil fume extraction channel and a diversion structure disposed within the oil fume extraction channel, the diversion structure dividing the oil fume extraction channel into a left channel and a right channel; The smoke hood control method includes: Obtain the first smoke concentration in the corresponding area of ​​the left channel and the second smoke concentration in the corresponding area of ​​the right channel; as well as Based on the first smoke concentration and the second smoke concentration, the size of the left and right channels is adjusted by the control diversion structure to control the smoke extraction volume of the left and right channels accordingly.

2. The smoke machine control method as described in claim 1, characterized in that, The diversion mechanism includes a rotating part rotatably disposed within the fume extraction channel. The step of controlling the diversion structure to adjust the size of the left and right channels according to the first and second smoke concentrations, so as to correspondingly control the smoke extraction volume of the left and right channels, specifically includes: Based on the first smoke concentration and the second smoke concentration, the rotation angle of the rotating part is controlled to control the size of the left and right channels of the diversion structure, thereby correspondingly controlling the smoke extraction volume of the left and right channels.

3. The smoke machine control method as described in claim 1, characterized in that, The step of controlling the size of the left and right channels of the diversion structure to adjust the smoke extraction volume of the left and right channels according to the first smoke concentration and the second smoke concentration includes: When the first smoke concentration is greater than the second smoke concentration, the diversion structure is controlled to increase the smoke extraction volume of the left channel and decrease the smoke extraction volume of the right channel, so that the smoke extraction volume of the left channel is greater than the smoke extraction volume of the right channel. When the first smoke concentration is less than the second smoke concentration, the diversion structure is controlled to increase the right channel and decrease the left channel, so that the smoke extraction volume of the right channel is less than the smoke extraction volume of the left channel. When the first smoke concentration is equal to the second smoke concentration, the diversion structure is controlled to make the size of the left channel and the right channel equal, so that the smoke extraction volume of the left channel is equal to the smoke extraction volume of the right channel.

4. The smoke hood control method as described in claim 1, characterized in that, The step of controlling the size of the left and right channels of the diversion structure to adjust the smoke extraction volume of the left and right channels according to the first smoke concentration and the second smoke concentration includes: The smoke extraction ratio between the left and right channels is determined based on the ratio of the first smoke concentration to the second smoke concentration. According to the smoke extraction volume distribution ratio, the action of the diversion structure is controlled to adjust the size of the left and right channels, so as to control the smoke extraction volume of the left and right channels accordingly.

5. The smoke hood control method as described in claim 1, characterized in that, Based on the first smoke concentration and the second smoke concentration, the control structure adjusts the size of the left and right channels to correspondingly control the smoke extraction volume of the left and right channels, including: When the first smoke concentration is lower than the first smoke concentration threshold, the control diversion structure adjusts the left channel to the minimum and the right channel to the maximum. When the second smoke concentration is lower than the second smoke concentration threshold, the control diversion structure adjusts the right channel to the minimum and the left channel to the maximum.

6. The smoke machine control method as described in claim 1, characterized in that, The range hood can be used in conjunction with a cooktop, which includes a first combustion section and a second combustion section. The left channel is configured corresponding to the first combustion section, and the right channel is configured corresponding to the second combustion section. Obtaining the first smoke concentration in the area corresponding to the left channel and the second smoke concentration in the area corresponding to the right channel includes: Obtain the firepower of the first combustion section and the firepower of the second combustion section; The first smoke concentration and the second smoke concentration are determined based on the firepower level and the preset correspondence between firepower level and smoke concentration.

7. A smoke machine control device, characterized in that, The smoke hood control device includes a memory, a processor, and a smoke hood control program stored in the memory and executable on the processor, the smoke hood control program being configured to implement the steps of the smoke hood control method as described in any one of claims 1 to 6.

8. A range hood, characterized in that, The range hood has a fume extraction channel and a diversion structure disposed within the fume extraction channel, the diversion structure dividing the fume extraction channel into a left channel and a right channel, the range hood uses the range hood control method as described in any one of claims 1 to 6, or the range hood further includes the range hood control device as described in claim 7.

9. The range hood as described in claim 8, characterized in that, The diversion structure includes a rotating part rotatably disposed in the fume extraction channel. The rotating part is used to rotate according to the first smoke concentration and the second smoke concentration to control the diversion structure to adjust the size of the left channel and the right channel, thereby correspondingly controlling the smoke extraction volume of the left channel and the right channel.

10. The range hood as described in claim 8, characterized in that, The smoke hood also includes a smoke detection device, which is installed in the smoke hood and is used to obtain a first smoke concentration in the area corresponding to the left channel and a second smoke concentration in the area corresponding to the right channel.

11. The range hood as described in claim 8, characterized in that, The range hood can be used in conjunction with a cooktop, which includes a first combustion section and a second combustion section. The left channel is configured corresponding to the first combustion section, and the right channel is configured corresponding to the second combustion section. The range hood also includes: A temperature detection device is used to acquire the temperatures of the first combustion section and the second combustion section, so as to obtain the corresponding firepower based on the temperatures of the first combustion section and the second combustion section.

12. The smoke hood as described in claim 11, characterized in that, The range hood also includes a wireless communication device, which is wirelessly connected to the stove. The stove includes a first valve and a second valve. The first valve is used to adjust the firepower of the first combustion section, and the second valve is used to adjust the firepower of the second combustion section. The wireless communication device is used to obtain the opening degree of the first valve and the second valve to obtain the firepower of the first combustion section and the second combustion section.

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