Range hood, control method, device and readable storage medium of range hood

Abstract

The present invention relates to the technical field of electrical appliance control, and discloses an oil fume extractor, a control method, a device and a readable storage medium thereof. Among them, the oil fume extractor includes: at least two motors; at least two centrifugal impellers, and the at least two centrifugal impellers are distributed in different orientations of the oil fume extractor, and each centrifugal impeller is connected to one or more motors. The method includes: obtaining a start command of the oil fume extractor; when the start command is obtained, starting at least two motors at a preset power. By implementing the present invention, the working noise of the oil fume extractor is reduced, the problem that the user is irritated and the cooking of the user is affected due to the excessive working noise of the oil fume extractor is avoided, the cooking comfort of the user is improved, and at the same time, the oil fume can be captured in the largest range, and the oil fume extraction effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliance control, and particularly relates to a range hood, a control method and device thereof, and a readable storage medium. Background Art

[0002] Currently, a range hood usually uses a single motor to drive a centrifugal impeller to rotate and suck in cooking fumes, and then discharge the fumes from the exhaust port. Moreover, in order to suck in cooking fumes more powerfully, the power of the motor used in a range hood is generally 80W or more. Even when the working power of the motor is 80W, the noise level can reach 70dB. In a relatively high-temperature environment in the kitchen, high noise is very likely to cause irritation to users and affect their cooking operations. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a range hood, a control method and device thereof, and a readable storage medium to solve the problem that the working noise of a single motor is relatively high and affects the cooking operations of users.

[0004] According to a first aspect, embodiments of the present invention provide a range hood, including: at least two motors; at least two centrifugal impellers, the at least two centrifugal impellers are distributed in different orientations of the range hood, and each centrifugal impeller is connected to one or more motors.

[0005] The range hood provided by the embodiments of the present invention is provided with at least two motors and at least two centrifugal impellers, and the at least two centrifugal impellers are distributed in different orientations of the range hood, and each centrifugal impeller is connected to one or more motors. This range hood is provided with at least two motors, and the motors drive the centrifugal impellers to rotate to suck out the cooking fumes in the kitchen. Here, at least two motors cooperate with at least two centrifugal impellers to discharge the cooking fumes in the kitchen. Compared with a single motor in the prior art, the power of each motor here can be lower than the power of a single motor set in the existing range hood, that is, the suction ability of a single motor is achieved by multiple small-power motors, thereby reducing the working noise of the range hood, avoiding the problem that the working noise of the range hood is too high, which causes irritation to users and affects their cooking, improving the cooking comfort of users, and capturing cooking fumes in the largest range through the centrifugal impellers arranged in different orientations, improving the fume suction effect.

[0006] Combined with the first aspect, in a first implementation manner of the first aspect, the number of the centrifugal impellers is the same as the number of the motors, and the centrifugal impellers are connected to the motors in a one-to-one correspondence.

[0007] Combined with the first aspect, in a second implementation manner of the first aspect, the at least two centrifugal impellers are distributed on both sides of the range hood.

[0008] Combined with the second embodiment of the first aspect, in the third embodiment of the first aspect, two centrifugal fans are provided on one side of the range hood.

[0009] For the range hood provided by the embodiment of the present invention, two centrifugal fans are respectively arranged on both sides of the range hood. The number of centrifugal fans is the same as the number of motors, and the centrifugal fans are connected to the motors in one-to-one correspondence, thereby expanding the range of fume extraction, avoiding the problem of fume overflow, and ensuring the fume extraction ability of the range hood to the greatest extent.

[0010] Combined with the third embodiment of the first aspect, in the fourth embodiment of the first aspect, the two centrifugal fans are located in the same volute.

[0011] Combined with the fourth embodiment of the first aspect, in the fifth embodiment of the first aspect, the air cavities of the two volutes are led out to the top by an exhaust pipe and merged into a total exhaust pipe.

[0012] For the range hood provided by the embodiment of the present invention, the centrifugal fans arranged on both sides of the range hood share one volute each, and the inner cavities of the two volutes are led out to the top by an exhaust pipe and merged into a total exhaust pipe, making the overall structure of the range hood clearer and more practical.

[0013] Combined with the first aspect, in the sixth embodiment of the first aspect, the range hood further includes: an oil fume detection sensor, arranged on the range hood, and the oil fume detection sensor is used to detect the current oil fume concentration.

[0014] For the range hood provided by the embodiment of the present invention, it further includes an oil fume detection sensor for detecting the current oil fume concentration to realize automatic induction of the oil fume concentration, so that the motor of the range hood can adaptively adjust the working power according to the oil fume concentration.

[0015] Combined with the sixth embodiment of the first aspect, in the seventh embodiment of the first aspect, the oil fume detection sensors are distributed on both sides of the range hood and are arranged opposite to each other.

[0016] Combined with the sixth embodiment or the seventh embodiment of the first aspect, in the eighth embodiment of the first aspect, the oil fume detection sensor is a smoke sensor.

[0017] For the range hood provided by the embodiment of the present invention, its oil fume detection sensors are distributed on both sides of the range hood and are arranged opposite to each other, thereby being able to respectively detect the oil fume concentrations on both sides of the range hood, so that the motors located on both sides of the range hood can respectively adjust the working power in real time according to the oil fume concentration on their respective sides, saving the energy efficiency of the range hood.

[0018] Combined with the sixth embodiment of the first aspect, in the ninth embodiment of the first aspect, the range hood further includes: a controller communicatively connected to the oil fume detection sensor and the at least two motors, and the controller is configured to adjust the operating power of the at least two motors according to the oil fume concentration.

[0019] The range hood provided by the embodiment of the present invention further includes a controller communicatively connected to the oil fume detection sensor and the motor. The oil fume detection sensor can feedback the detected oil fume concentration to the controller. Correspondingly, the controller can adjust the operating power of the corresponding motor according to the received oil fume concentration, realizing the adaptive adjustment of the motor.

[0020] According to a second aspect, an embodiment of the present invention provides a control method for a range hood, which is applied to a range hood. The range hood includes at least two motors and at least two centrifugal air wheels. The at least two centrifugal air wheels are distributed in different orientations of the range hood, and each centrifugal air wheel is connected to one or more motors. The control method of the range hood includes: obtaining a start command of the range hood; when the start command is obtained, starting the at least two motors at a preset power.

[0021] The control method of the range hood provided by the embodiment of the present invention starts at least two motors at a preset power when obtaining the start command of the range hood, so as to drive the centrifugal air wheels distributed in different orientations of the range hood to rotate, capturing the oil fume in the kitchen in the largest range and improving the oil fume extraction effect. The power of each motor provided by this range hood can be lower than the power of a single motor set in the existing range hood, that is, by controlling multiple motors to work at a preset power to achieve the oil fume extraction ability of a single motor, thereby reducing the working noise of the range hood, avoiding the problem that the working noise of the range hood is too large, which causes annoyance to users and affects users' cooking, and improving the cooking comfort of users.

[0022] Combined with the second aspect, in the first embodiment of the second aspect, the range hood further includes an oil fume detection sensor, and the control method of the range hood further includes: obtaining the oil fume concentration detected by the oil fume detection sensor; adjusting the operating power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration.

[0023] The control method of the range hood provided by the embodiment of the present invention obtains the oil fume concentration detected by the oil fume detection sensor and adjusts the operating power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration. Thereby, the operating power of the motor of the range hood is adaptively adjusted according to the oil fume concentration, without manual adjustment, improving the user experience.

[0024] Combined with the first embodiment of the second aspect, in the second embodiment of the second aspect, adjusting the operating power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration includes: determining whether the oil fume concentrations on both sides of the range hood are the same; when the oil fume concentrations on both sides of the range hood are different, respectively determining the first oil fume concentration and the second oil fume concentration corresponding to both sides of the range hood; and based on the first oil fume concentration and the second oil fume concentration, respectively adjusting the operating powers of the motors on both sides of the range hood.

[0025] For the control method of the range hood provided by the embodiments of the present invention, when the oil fume concentrations on both sides of the range hood are different, by obtaining the first oil fume concentration and the second oil fume concentration corresponding to both sides of the range hood, and respectively adjusting the operating powers of the motors corresponding thereto according to the first oil fume concentration and the second oil fume concentration, the motors located on both sides of the range hood can respectively perform real-time adjustment of the operating power according to the oil fume concentration on their respective sides, saving the energy efficiency of the range hood.

[0026] According to a third aspect, an embodiment of the present invention provides a control device for a range hood, which is applied to a range hood. The range hood includes at least two motors and at least two centrifugal air wheels. The at least two centrifugal air wheels are distributed in different orientations of the range hood, and each centrifugal air wheel is connected to one or more motors. The control device of the range hood includes: an acquisition module, configured to acquire a start instruction of the range hood; and a start module, configured to start the at least two motors at a preset power when the start instruction is acquired.

[0027] For the control device of the range hood provided by the embodiments of the present invention, when a start instruction of the range hood is acquired, the at least two motors are started at a preset power to drive the centrifugal air wheels distributed in different orientations of the range hood to rotate, capturing the oil fume in the kitchen within the largest range, and improving the oil fume extraction effect. The power of each motor provided in this range hood can be lower than the power of a single motor provided in the existing range hood. That is, the control device of the range hood controls multiple motors to work at a preset power to achieve the oil fume extraction ability of a single motor, thereby reducing the operating noise of the range hood, avoiding the problem that the operating noise of the range hood is too large, which causes annoyance to users and affects users' cooking, and improving the cooking comfort of users.

[0028] According to a fourth aspect, an embodiment of the present invention provides a range hood, including: a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the control method of the range hood according to the second aspect or any one of the second aspect.

[0029] According to a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the control method of the range hood according to the second aspect or any embodiment of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 is a structural block diagram of a range hood according to an embodiment of the present invention;

[0032] Figure 2 is a structural schematic diagram of a range hood according to an embodiment of the present invention;

[0033] Figure 3 is another structural schematic diagram of a range hood according to an embodiment of the present invention;

[0034] Figure 4 is a flowchart of a control method of a range hood according to an embodiment of the present invention;

[0035] Figure 5 is another flowchart of a control method of a range hood according to an embodiment of the present invention;

[0036] Figure 6 is another flowchart of a control method of a range hood according to an embodiment of the present invention;

[0037] Figure 7 is a structural block diagram of a control device of a range hood according to an embodiment of the present invention;

[0038] Figure 8 is a hardware structural schematic diagram of a range hood provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0040] Current range hoods usually use a single motor to drive a centrifugal impeller to rotate and inhale cooking fumes, which are then discharged from the exhaust port. Moreover, in order to inhale the cooking fumes more powerfully, the power of the motor used in the range hood is generally 80W or above. Even when the working power of the motor is 80W, the noise level can reach 70dB. In the relatively high-temperature environment of the kitchen, high noise is very likely to cause irritation to users and affect their cooking operations.

[0041] Based on this, the technical solution of the present invention compensates for the insufficient suction of a low-power motor by setting multiple motors, and cooperates with multiple centrifugal impellers arranged in different positions to capture cooking fumes. This not only captures cooking fumes in the largest range but also reduces the working noise of the range hood.

[0042] According to an embodiment of the present invention, a range hood is provided. Figure 1 It is a structural block diagram of the range hood according to an embodiment of the present invention, as Figure 1 shown. The range hood includes at least two motors 11 and at least two centrifugal impellers 12. Among them, at least two centrifugal impellers 12 are distributed in different positions of the range hood, and each centrifugal impeller 12 is connected to one or more motors 11. Specifically, when the range hood is provided with two motors 11 and two centrifugal impellers 12, the two motors 11 can be respectively arranged in different positions of the range hood, such as the left and right sides of the range hood. At this time, the two centrifugal impellers 12 can also be respectively arranged on the left and right sides of the range hood. The motors 11 drive the centrifugal impellers 12 to rotate to inhale cooking fumes and discharge the cooking fumes from the exhaust port of the range hood.

[0043] Specifically, when the range hood is provided with four motors 11 and two centrifugal impellers 12, the four motors 11 can be respectively arranged at the positions where the four corners of the range hood are located, and the two centrifugal impellers 12 can be respectively arranged on the left and right sides of the range hood. At this time, the motors 11 arranged at the two corner positions on the left side of the range hood are connected to the centrifugal impeller 12 on the left side, and the motors 11 arranged at the two corner positions on the right side of the range hood are connected to the centrifugal impeller 12 on the right side. The four motors 11 can respectively drive the two centrifugal impellers 12 to rotate to inhale cooking fumes and discharge the cooking fumes from the exhaust port of the range hood.

[0044] Generally, the working power of a single motor set on a range hood is above 80W. Here, the working power of the motor 11 set on the range hood can be lower than the power of a single motor set in the existing range hood, which is 80W. For example, the working power of each motor can be 60W. The rotation speed of the centrifugal impeller driven by a single motor with a power of 60W is smaller than that driven by a single motor with a power of 80W, but the working noise of the motor 11 and the centrifugal impeller 12 can be reduced. It should be noted that the minimum noise generated by the rotation of the centrifugal impeller driven by a 60W motor is 45dB, and the maximum noise is 60dB. Even if a motor 11 is set at each of the four corners of the range hood, when it operates at the minimum working power, the superimposed working noise is about 10*lg(4*10 4.5 )≈51dB, and when it operates at the maximum working power, the superimposed working noise is about 10*lg(4*10 6 )≈66dB. It can be seen that even when it operates at the maximum working power, its noise is still lower than the working noise of 70dB of a single motor with a power of 80W.

[0045] In this range hood, multiple motors 11 with lower working powers are set at the same time, and centrifugal impellers 12 arranged in different positions are cooperated to capture oil fume, which not only reduces the working noise, but also can make up for the deficiency of weakened suction due to the lower motor power.

[0046] The range hood provided in this embodiment is provided with at least two motors and at least two centrifugal impellers, and at least two centrifugal impellers are distributed in different positions of the range hood. Each centrifugal impeller is connected to one or more motors. This range hood is provided with at least two motors, and the motors drive the centrifugal impellers to rotate to suck away the oil fume in the kitchen. Here, at least two motors cooperate with at least two centrifugal impellers to discharge the oil fume in the kitchen. Compared with a single motor in the prior art, the power of each motor here can be lower than the power of a single motor set in the existing range hood, that is, the oil fume suction capacity of a single motor is achieved by multiple motors with low powers, thereby reducing the working noise of the range hood, avoiding the problem that the working noise of the range hood is too large, which causes the user to be irritable and affects the user's cooking, improving the cooking comfort of the user, and capturing the oil fume in the largest range through the centrifugal impellers arranged in different positions, improving the oil fume suction effect.

[0047] As an optional implementation manner, the number of centrifugal impellers 12 is the same as the number of motors 11, and the centrifugal impellers 12 are connected to the motors 11 in a one-to-one correspondence. Taking four centrifugal impellers and four motors as an example, as Figure 2 shown, if the range hood is provided with four motors 11, then the range hood can be provided with four centrifugal impellers 12 at the same time, and the four centrifugal impellers 12 are respectively connected to the four motors 11 in a one-to-one correspondence.

[0048] To ensure that the range hood can suck away cooking fumes to the greatest extent and avoid fume overflow, at least two centrifugal fans 12 are distributed on both sides of the range hood. When the motor 11 drives the centrifugal fans 12 to rotate, it can ensure to the greatest extent that the cooking fumes around the range hood can be sucked away.

[0049] Specifically, two centrifugal fans 12 are provided on one side of the range hood, that is, a total of four centrifugal fans 12 are provided on the range hood. As Figure 2 shown, the range hood can be provided with four centrifugal fans 12 and four motors 11 at the same time. The four motors 11 are respectively arranged at the four corners of the range hood. The four centrifugal fans 12 are respectively arranged on both sides (i.e., the left side and the right side) of the range hood, and the four centrifugal fans 12 (not shown in the figure) are respectively arranged at the positions where the four motors 11 are located and are respectively connected to the four motors 11 in one-to-one correspondence. For example, when cooking fumes rise and part of the fumes begin to overflow, the range hood can suck away the fumes from the four upper corners to prevent fume overflow to the greatest extent, so as to ensure that users can feel the smoke-free circulating air.

[0050] For the range hood provided in this embodiment, two centrifugal fans are respectively arranged on both sides of the range hood. The number of centrifugal fans is the same as the number of motors, and the centrifugal fans are connected to the motors in one-to-one correspondence, thereby expanding the fume capture range, avoiding fume overflow, and ensuring the fume suction capacity of the range hood to the greatest extent.

[0051] As an alternative embodiment, the two centrifugal fans 12 on the same side of the range hood are located in the same volute. The air cavities of the two volutes are led out by exhaust pipes to the top and merged into a total exhaust pipe. Specifically, the four motors 11 in the range hood are provided with corresponding centrifugal fans 12. The four centrifugal fans 12 are respectively arranged on the left and right sides of the range hood. The two centrifugal fans 12 on the left and right sides share one volute each, and the air cavities of the two volutes are led out to the top by exhaust pipes and merged into a total exhaust pipe.

[0052] For the range hood provided in the embodiment of the present invention, the centrifugal fans arranged on both sides of the range hood share one volute each, and the inner cavities of the two volutes are led out to the top by exhaust pipes and merged into a total exhaust pipe, making the overall structure of the range hood clearer and more practical.

[0053] As an alternative embodiment, as Figure 2 shown, the range hood may further include a fume detection sensor 13 for detecting the current fume concentration. Specifically, the fume detection sensor 13 can be arranged on the side of the range hood or on the top of the range hood, and no specific limitation is made here.

[0054] As an alternative embodiment, in order to more accurately detect the oil fume concentration around the range hood, the range hood may be provided with a plurality of oil fume detection sensors 13, and the plurality of oil fume detection sensors 13 are oppositely arranged on both sides of the range hood. Specifically, the oil fume detection sensor may be a smoke sensor, and of course, it may also be other sensors capable of detecting oil fume or fog, which is not specifically limited herein. Taking Figure 2 the shown range hood as an example, two oil fume detection sensors 13 are provided on the range hood, and they are respectively arranged on both sides of the range hood. The oil fume detection sensor can sense the oil fume concentration at its location, so that the corresponding motor 11 can adaptively adjust the working power according to the oil fume concentration.

[0055] The range hood provided by the embodiment of the present invention further includes an oil fume detection sensor for detecting the current oil fume concentration. The oil fume detection sensors are distributed on both sides of the range hood and are oppositely arranged, so that the oil fume concentrations on both sides of the range hood can be respectively detected, enabling the motors located on both sides of the range hood to respectively perform real-time adjustment of the working power according to the oil fume concentration on their respective sides, saving the energy efficiency of the range hood.

[0056] As an alternative embodiment, the range hood may further include a controller 14, and the controller 14 can be communicatively connected to the oil fume detection sensor 13 and at least two motors 11. Specifically, as Figure 3 shown, the controller 14 can be communicatively connected to the motors 11 located at the four corners of the range hood and the oil fume detection sensors 13 located on both sides of the range hood at the same time. The oil fume detection sensor 13 can feedback the sensed oil fume concentration to the controller 14. Correspondingly, the controller 14 can adjust the working power of the corresponding motor 11 according to the received oil fume concentration.

[0057] As Figure 3 shown, the range hood may further include a display unit 15, a lighting unit 16, and a push rod motor 17, and the display unit 15, the lighting unit 16, and the push rod motor 17 are all communicatively connected to the controller 14. Among them, the display unit 15 is used to display the working state of the range hood, such as a display screen; the lighting unit 16 is used to provide a cooking light source, such as an LED lamp; the push rod motor 17 is used to control the movement of the smoke collecting hood of the range hood.

[0058] The range hood provided by this embodiment further includes a controller communicatively connected to the oil fume detection sensor and the motor. By the controller adjusting the working power of the corresponding motor according to the received oil fume concentration, the adaptive adjustment of the motor is realized, and the problem of inconvenient manual control by the user is solved.

[0059] According to an embodiment of the present invention, a control method for a range hood is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown here.

[0060] In this embodiment, a control method for a range hood is provided, which can be used for the range hood mentioned above. Figure 4 is a flow chart of a control method of a range hood according to an embodiment of the present invention. Figure 4 As shown, the process includes the following steps:

[0061] S21, obtaining a start instruction of the range hood.

[0062] The start instruction is a control instruction for starting the range hood. The user can input the start instruction to the range hood by clicking or touching the power button, and accordingly, the range hood can receive the start instruction.

[0063] S22, when a start instruction is obtained, starting at least two motors with a preset power.

[0064] When the range hood receives the start-up command, at least two motors provided thereon are started with a preset power, and the centrifugal impellers connected to the at least two motors begin to rotate. The preset power is the initial working power of the motor, and the preset power may be the minimum power, the maximum power, or the standard power, which is not specifically limited here.

[0065] The control method of the range hood provided in this embodiment starts at least two motors with preset power when a start command of the range hood is obtained, so as to drive the centrifugal impellers distributed in different positions of the range hood to rotate, so as to capture the oil smoke in the kitchen to the greatest extent, thereby improving the oil smoke extraction effect. The power of each motor provided in the range hood can be lower than the power of a single motor provided in the existing range hood, that is, by controlling multiple motors to work at preset power to achieve the oil smoke extraction capacity of a single motor, the working noise of the range hood is reduced, the problem of excessive working noise of the range hood causing irritation to the user and affecting the user's cooking is avoided, and the cooking comfort of the user is improved.

[0066] In this embodiment, a control method for a range hood is provided, which can be used for the range hood mentioned above. Figure 5 is a flow chart of a control method of a range hood according to an embodiment of the present invention. Figure 5 As shown, the process includes the following steps:

[0067] S31, obtaining a start instruction of the range hood. For detailed description, please refer to the relevant description of step S21 in the above embodiment, which will not be repeated here.

[0068] S32. When a start instruction is obtained, at least two motors are started at a preset power. For a detailed description, refer to the relevant description of step S22 in the above embodiment, which will not be elaborated here.

[0069] S33. Obtain the oil fume concentration detected by the oil fume detection sensor.

[0070] When the range hood is in the working state, the oil fume generated during cooking can be detected by the oil fume detection sensor to obtain the oil fume concentration in the current environment. For example, when the cooking oil fume rises, the oil fume detection sensor can detect the cooking oil fume to obtain the oil fume concentration during the cooking process.

[0071] S34. Adjust the working power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration.

[0072] The controller of the range hood can determine the working gear of the motor according to the oil fume concentration it receives, and further determine the working power required by the range hood. Specifically, when the range hood starts to work, the oil fume detection sensor also starts to work. The oil fume detection sensor feeds back the oil fume concentration to the controller, and the controller can determine the working power of the motor corresponding to the current oil fume concentration. For example, if the working power corresponding to the oil fume concentration fed back by the oil fume detection sensor to the controller is relatively low, the controller can instruct the motor to run at a low speed.

[0073] Specifically, as Figure 6 shown, the above step S34 may include the following steps:

[0074] S341. Determine whether the oil fume concentrations on both sides of the range hood are the same.

[0075] Oil fume detection sensors are respectively arranged on both sides of the range hood, and thus the oil fume detection sensors can feed back the detected oil fume concentration to the controller of the range hood. The controller of the range hood can compare the oil fume concentrations on both sides of the range hood to determine whether the oil fume concentrations on both sides are the same. When the oil fume concentrations on both sides of the range hood are different, step S342 is executed; otherwise, the motors on both sides of the range hood are adjusted to work at the same working power based on the current concentration.

[0076] S342. Respectively determine the first oil fume concentration and the second oil fume concentration corresponding to both sides of the range hood.

[0077] When the first oil fume concentration is greater than the second oil fume concentration and the oil fume concentrations on both sides of the range hood are different, the controller of the range hood can determine the larger first oil fume concentration and the smaller second oil fume concentration therefrom, and determine the corresponding sides of the first oil fume concentration and the second oil fume concentration.

[0078] S343. Adjust the operating power of the motors on both sides of the range hood respectively based on the first oil fume concentration and the second oil fume concentration.

[0079] The range hood can increase the operating power of the motor on its corresponding side according to the first oil fume concentration, and at the same time decrease the operating power of the motor on its corresponding side according to the second oil fume concentration. The operating power of the range hood is positively correlated with the motor speed, that is, the motor speed on the side with a large oil fume concentration is adjusted to increase, and the motor speed on the side with a small oil fume concentration is adjusted to decrease. In this way, the automatic adjustment of the motor speed can be realized, achieving the effect of automatic gear shifting of the motor without the need for the user to manually shift gears. At the same time, the range hood adjusts the gears in real time according to the actual oil fume concentration, which can save energy efficiency.

[0080] Generally, the range hoods on the market currently have 3 gears, and the motor speed is directly indicated to be at a certain specific speed by the user pressing a manual button. For example, when the user presses the low gear button, the motor speed is directly adjusted to the state corresponding to the low gear; when the user presses the high gear button, the motor speed is directly adjusted to the state corresponding to the high gear. However, this range hood only has the upper and lower limits of the operating power (i.e., the maximum speed and the minimum speed), without a fixed gear speed. Its motor speed is only proportional to the oil fume concentration sensed by the oil fume detection sensor. For example, the minimum speed is 300 rpm, and the maximum speed is 680 rpm. If the oil fume concentration is divided into 10 intervals, then when the oil fume concentration is in interval 1, its speed is 300 rpm, and when the oil fume concentration is in interval 2, its speed increases to 338 rpm, and so on. When the oil fume concentration is in interval 10, its speed increases to 680 rpm.

[0081] The control method of the range hood provided in this embodiment obtains the oil fume concentration detected by the oil fume detection sensor and adjusts the operating power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration. Thus, the operating power of the motor of the range hood is adaptively adjusted according to the oil fume concentration without manual adjustment, improving the user experience. When the oil fume concentrations on both sides of the range hood are different, by obtaining the first oil fume concentration and the second oil fume concentration corresponding to both sides of the range hood and adjusting the operating power of the motors corresponding to them respectively according to the first oil fume concentration and the second oil fume concentration, the motors located on both sides of the range hood can respectively adjust the operating power in real time according to the oil fume concentration on their respective sides, saving the energy efficiency of the range hood.

[0082] In this embodiment, a control device for a range hood is also provided. This device is used to implement the above embodiments and preferred implementation manners, and those that have been described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

[0083] This embodiment provides a control device for a range hood, as Figure 7 shown, including:

[0084] An acquisition module 41, configured to acquire a start instruction. For detailed description, refer to the relevant description corresponding to the above method embodiment, which will not be elaborated here.

[0085] A start module 42, configured to start at least two motors at a preset power when the start instruction is acquired. For detailed description, refer to the relevant description corresponding to the above method embodiment, which will not be elaborated here.

[0086] The control device of the range hood in this embodiment is presented in the form of functional units. Here, the unit refers to an ASIC circuit, a processor and a memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0087] The further function descriptions of the above modules are the same as those in the corresponding above embodiments, and will not be elaborated here.

[0088] This embodiment of the present invention also provides a range hood, having the above Figure 7 shown control device of the range hood.

[0089] Please refer to Figure 8 , Figure 8 which is a schematic structural diagram of a range hood provided by an optional embodiment of the present invention. As Figure 8 shown, the range hood may include: at least one processor 501, such as a CPU (Central Processing Unit), at least one communication interface 503, a memory 504, and at least one communication bus 502. Among them, the communication bus 502 is used to implement connection communication between these components. Among them, the communication interface 503 may include a display screen (Display) and a keyboard (Keyboard). Optionally, the communication interface 503 may further include a standard wired interface and a wireless interface. The memory 504 may be a high-speed RAM memory (Random Access Memory, volatile random access memory), or a non-volatile memory, such as at least one disk memory. Optionally, the memory 504 may further be at least one storage device located far from the aforementioned processor 501. Among them, the processor 501 may be combined with Figure 7 the device described above. The memory 504 stores an application program, and the processor 501 calls the program code stored in the memory 504 to execute any of the above method steps.

[0090] Among them, the communication bus 502 can be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus 502 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 8 it is only represented by a thick line in Figure 8 , but it does not mean that there is only one bus or one type of bus.

[0091] Among them, the memory 504 can include volatile memory, such as random-access memory (RAM); the memory can also include non-volatile memory, such as flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory 504 can also include a combination of the above types of memory.

[0092] Among them, the processor 501 can be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

[0093] Among them, the processor 501 can further include a hardware chip. The above hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0094] Optionally, the memory 504 is also used to store program instructions. The processor 501 can call the program instructions to implement, as in this application Figures 4 to 6The control method of the range hood shown in the embodiments.

[0095] An embodiment of the present invention further provides a non-transitory computer storage medium. The computer storage medium stores computer-executable instructions, and these computer-executable instructions can execute the processing method of the control method of the range hood in any of the above method embodiments. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above types of memories.

[0096] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An oil fume suction machine, characterized in that, Comprising: At least two motors; At least two centrifugal air wheels, the at least two centrifugal air wheels being distributed in different orientations of the range hood, and each centrifugal air wheel being connected to one or more motors; An oil fume detection sensor, arranged on the range hood, the oil fume detection sensor being used for detecting the current oil fume concentration; The oil fume detection sensors are distributed on both sides of the range hood and are arranged oppositely; A controller, communicatively connected to the oil fume detection sensor and the at least two motors, the controller being used for adjusting the operating power of the at least two motors according to the oil fume concentration; The controller is further used for: judging whether the oil fume concentrations on both sides of the range hood are the same; when the oil fume concentrations on both sides of the range hood are different, respectively determining a first oil fume concentration and a second oil fume concentration corresponding to both sides of the range hood; and respectively adjusting the operating powers of the motors on both sides of the range hood based on the first oil fume concentration and the second oil fume concentration.

2. The range hood according to claim 1, wherein The number of the centrifugal air wheels is the same as the number of the motors, and the centrifugal air wheels are connected to the motors in a one-to-one correspondence.

3. The range hood according to claim 1, wherein The at least two centrifugal air wheels are distributed on both sides of the range hood.

4. The range hood according to claim 3, characterized in that, Two centrifugal air wheels are arranged on one side of the range hood.

5. The range hood according to claim 4, wherein, The two centrifugal air wheels are in the same volute.

6. The range hood according to claim 5, characterized in that, The air cavities of the two volutes are led out to the top by an exhaust pipe and merged into a total exhaust pipe.

7. The range hood according to claim 1, characterized in that, The oil fume detection sensor is a smoke sensor.

8. A control method for a range hood, applied to a range hood, characterized in that, The range hood comprises at least two motors and at least two centrifugal air wheels, the at least two centrifugal air wheels being distributed in different orientations of the range hood, and each centrifugal air wheel being connected to one or more motors; an oil fume detection sensor, arranged on the range hood, the oil fume detection sensor being used for detecting the current oil fume concentration; The oil fume detection sensors are distributed on both sides of the range hood and are arranged oppositely; The control method of the range hood comprises: Obtaining a start instruction of the range hood; When the start instruction is obtained, starting the at least two motors at a preset power; The control method of the range hood further comprises: Obtaining the oil fume concentration detected by the oil fume detection sensor; Adjusting the operating power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration; The adjusting the operating power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration comprises: Judging whether the oil fume concentrations on both sides of the range hood are the same; When the oil fume concentrations on both sides of the range hood are different, respectively determining a first oil fume concentration and a second oil fume concentration corresponding to both sides of the range hood; Respectively adjusting the operating powers of the motors on both sides of the range hood based on the first oil fume concentration and the second oil fume concentration.

9. A control device for a range hood, applied to a range hood, characterized in that, The range hood comprises at least two motors and at least two centrifugal air wheels, the at least two centrifugal air wheels being distributed in different orientations of the range hood, and each centrifugal air wheel being connected to one or more motors; an oil fume detection sensor, arranged on the range hood, the oil fume detection sensor being used for detecting the current oil fume concentration; The oil fume detection sensors are distributed on both sides of the range hood and are arranged oppositely; The control device of the range hood comprises: An acquisition module for acquiring a start instruction of the range hood; A start module for starting the at least two motors at a preset power when the start instruction is acquired; The start module is further configured to: Adjust the operating power of the motor corresponding to the oil fume detection sensor according to the oil fume concentration; The start module is further configured to: Judge whether the oil fume concentrations on both sides of the range hood are the same; When the oil fume concentrations on both sides of the range hood are different, respectively determine the first oil fume concentration and the second oil fume concentration corresponding to both sides of the range hood; Based on the first oil fume concentration and the second oil fume concentration, respectively adjust the operating powers of the motors on both sides of the range hood.

10. A range hood, characterized in that, Comprising: A memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the control method of the range hood according to claim 8.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing a computer to execute the control method of the range hood according to claim 8.

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