Range hood, air intake control method for range hood, and storage medium

Abstract

The embodiment of the present invention provides a range hood, an air intake control method for the range hood, and a storage medium. The range hood includes a pyroelectric module, a camera, a control device, and an air guide plate assembly. The pyroelectric module is used to detect the temperature of a first burner and a second burner on a stove. The camera is used to collect an image of the stove. The air guide plate assembly includes a first air guide plate, a second air guide plate, a third air guide plate, and a driving mechanism. The driving mechanism is used to drive the first air guide plate, the second air guide plate, and the third air guide plate to open and close the first air inlet, the second air inlet, and the third air inlet of the range hood independently of each other. The third air inlet is located between the first air inlet and the second air inlet. The control device is connected to the pyroelectric module, the camera, and the driving mechanism, respectively, and is used to receive the temperature data collected by the pyroelectric module and the stove image collected by the camera, and control the driving mechanism to drive each air guide plate to open and close based on the temperature data and the stove image. The probability of false detection can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a range hood, an air intake control method for the range hood, and a storage medium. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly extract the waste from stove combustion and the fumes that are harmful to the human body generated during the cooking process and discharge them outdoors, reducing pollution, purifying the air, and also providing safety protection against poison and explosion.

[0003] The air guide plate of the range hood is a relatively important component, which can control the opening and closing of the rear air inlet. At present, a range hood is proposed that collects the temperature of the burner head through a thermal release module and controls the opening and closing of the air guide plate based on the burner head temperature.

[0004] The range hood that controls the air guide plate switch based on the temperature data collected by the pyroelectric module cannot identify whether the temperature of the monitored object is the temperature of the stove flame or the temperature inside the pot. Assuming that the pyroelectric module monitors the temperature of the flame, it controls the air guide plate to open when the opening condition is met. If there is no pot placed above the stove at this time, a misjudgment will occur. Summary of the invention

[0005] In order to at least partially solve the problems existing in the prior art, a range hood, an air intake control method for the range hood, and a storage medium are provided.

[0006] According to one aspect of the present invention, a range hood is provided, comprising a pyroelectric module, a camera, a control device and an air guide plate assembly, wherein the pyroelectric module is used to detect the temperatures of a first burner and a second burner on a stove to obtain temperature data; the camera is used to capture an image of the stove to obtain an image of the stove; the air guide plate assembly comprises a first air guide plate, a second air guide plate, a third air guide plate and a driving mechanism, the driving mechanism is used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close a first air inlet, a second air inlet and a third air inlet of the range hood, respectively, the third air inlet is located between the first air inlet and the second air inlet; the control device is respectively connected to the pyroelectric module, the camera and the driving mechanism, the control device is used to receive the temperature data collected by the pyroelectric module and the stove image collected by the camera, and based on the temperature data and the stove image, control the driving mechanism to drive each air guide plate to open and close.

[0007] Exemplarily, the control device is specifically used to: perform image recognition on the stove image to determine whether there is a pot above the first burner and / or the second burner.

[0008] Exemplarily, the control device is specifically used to: when a first condition is determined to be met based on temperature data and a stove image, control the drive mechanism to drive the third air guide plate to open, wherein the first condition is that the temperature of any one of the first burner and the second burner is greater than a first temperature threshold and there is a pot above the burner.

[0009] Exemplarily, the control device is specifically configured to: when the third air guide plate is open, when it is determined based on the temperature data and the stove image that the first condition is not satisfied for a first preset time, control the driving mechanism to drive the third air guide plate to close.

[0010] Exemplarily, the control device is specifically used to: when it is determined that the second condition is met based on temperature data and the stove image, control the drive mechanism to drive the third air guide plate to open, wherein the second condition is that the temperature of any one of the first burner and the second burner is greater than the second temperature threshold and the temperature of the other of the first burner and the second burner is greater than the third temperature threshold and there are pots above the first burner and the second burner.

[0011] Exemplarily, the control device is specifically configured to: when the third air guide plate is open, when it is determined based on the temperature data and the stove image that the second condition is not satisfied for a second preset time, control the driving mechanism to drive the third air guide plate to close.

[0012] Exemplarily, the control device is specifically used to: when it is determined that a third condition is met based on temperature data and a stove image, control the drive mechanism to drive the third air guide plate to open, wherein the third condition is that the sum of the temperatures of the first burner and the second burner is greater than a fourth temperature threshold and there is a pot above the first burner and / or the second burner.

[0013] Exemplarily, the control device is specifically used to: when the third air guide plate is open, when it is determined based on the temperature data and the stove image that the third condition is not satisfied for a third preset time, control the driving mechanism to drive the third air guide plate to close.

[0014] Exemplarily, the control device is specifically used to: when it is determined based on the temperature data and the stove image that the fourth condition is met, control the drive mechanism to drive the first air guide plate to open, wherein the fourth condition is that the temperature of the first burner is greater than the fifth temperature threshold and there is a pot above the first burner; and / or, when it is determined based on the temperature data and the stove image that the fifth condition is met, control the drive mechanism to drive the second air guide plate to open, wherein the fifth condition is that the temperature of the second burner is greater than the fifth temperature threshold and there is a pot above the second burner.

[0015] Exemplarily, the control device is specifically used to: when the first air deflector is open, when it is determined based on the temperature data and the stove image that a fourth condition is not satisfied for a fourth preset time, control the drive mechanism to drive the first air deflector to close; and / or, when the second air deflector is open, when it is determined based on the temperature data and the stove image that a fifth condition is not satisfied for a fifth preset time, control the drive mechanism to drive the second air deflector to close.

[0016] Exemplarily, the fifth temperature threshold is lower than the first temperature threshold.

[0017] Exemplarily, the second temperature threshold is not equal to the third temperature threshold, and the fifth temperature threshold is less than or equal to the smaller one of the second temperature threshold and the third temperature threshold.

[0018] Exemplarily, the second temperature threshold is equal to the third temperature threshold, and the fifth temperature threshold is smaller than the second temperature threshold and the third temperature threshold.

[0019] Exemplarily, the range hood further includes a fan, and the control device is further used to control the working gear of the fan based on the temperature data and the stove image.

[0020] Exemplarily, the fan has multiple working gears corresponding to multiple temperature ranges, and the control device is specifically used to: when it is determined based on the temperature data that the temperature of any one of the first burner and the second burner is less than a sixth temperature threshold and the temperature of the other of the first burner and the second burner falls within a specific temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the other burner, control the fan to operate in the working gear corresponding to the specific temperature range; when it is determined based on the temperature data that the temperature of any one of the first burner and the second burner falls within a first temperature range among the multiple temperature ranges and the temperature of the other of the first burner and the second burner falls within a second temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the first burner and the second burner, control the fan to operate in the working gear corresponding to the first temperature range, the second temperature range, or any temperature range between the first temperature range and the second temperature range.

[0021] Exemplarily, the first air guide plate has multiple first opening positions corresponding to multiple temperature ranges, and the control device is specifically used to: when it is determined based on the temperature data that the temperature of the first burner falls into a specific temperature range among the multiple temperature ranges and it is determined based on the stove image that there is a pot above the first burner, control the driving mechanism to drive the first air guide plate to open to the first opening position corresponding to the specific temperature range.

[0022] Exemplarily, the second air guide plate has multiple second opening positions corresponding to multiple temperature ranges, and the control device is specifically used to: when it is determined based on the temperature data that the temperature of the second burner falls into a specific temperature range among the multiple temperature ranges and it is determined based on the stove image that there is a pot above the second burner, control the driving mechanism to drive the second air guide plate to open to the second opening position corresponding to the specific temperature range.

[0023] Exemplarily, the pyroelectric module and / or the camera are located in the middle of the top of the range hood.

[0024] Exemplarily, the range hood also includes an input component for receiving air deflector indication information input by a user for indicating the opening and closing of air deflectors in the air deflector assembly. The control device is connected to the input component, and the control device is also used to control the driving mechanism to drive each air deflector to open and close based on the air deflector indication information.

[0025] Exemplarily, the range hood also includes a switch control board and a power board, and the control device includes a first chip and a second chip, the first chip is integrated on the switch control board, and the second chip is integrated on the power board, the first chip is connected to the thermal release module, and is used to receive temperature data and transmit the temperature data to the second chip; the second chip is respectively connected to the camera and the driving mechanism, and is used to receive temperature data and a stove image, and control the driving mechanism to drive each air guide plate to open and close based on the temperature data and the stove image.

[0026] Exemplarily, the driving mechanism includes a lifting mechanism connected to the third air guide plate, and the third air guide plate has a raised closed position and a lowered open position under the drive of the lifting mechanism. When the third air guide plate is in the raised closed position, the third air inlet is closed, and when the third air guide plate is in the lowered open position, the third air inlet is opened.

[0027] Exemplarily, the driving mechanism includes a first flipping mechanism connected to the first air guide plate and a second flipping mechanism connected to the second air guide plate. The first air guide plate has a flip-open position and a flip-closed position when driven by the first flipping mechanism. When the first air guide plate is in the flip-open position, the first air inlet is opened, and when the first air guide plate is in the flip-closed position, the first air inlet is closed. The second air guide plate has a flip-open position and a flip-closed position when driven by the second flipping mechanism. When the second air guide plate is in the flip-open position, the second air inlet is opened, and when the second air guide plate is in the flip-closed position, the second air inlet is closed.

[0028] According to another aspect of the present invention, there is also provided an air intake control method for a range hood, comprising: detecting the temperatures of a first burner and a second burner on a stove to obtain temperature data; acquiring an image of the stove to obtain a stove image; and controlling a driving mechanism in an air guide plate assembly of the range hood based on the temperature data and the stove image to drive each air guide plate in the air guide plate assembly to open and close, wherein the air guide plate assembly comprises a first air guide plate, a second air guide plate, a third air guide plate and a driving mechanism, the driving mechanism being used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close a first air inlet, a second air inlet and a third air inlet of the range hood, respectively, and the third air inlet is located between the first air inlet and the second air inlet.

[0029] According to another aspect of the present invention, a storage medium is also provided, on which program instructions are stored, and the program instructions are used to execute the following when running: obtaining temperature data obtained by detecting the temperatures of a first burner and a second burner on a stove; obtaining a stove image obtained by collecting the stove; and controlling a driving mechanism in an air guide plate assembly of a range hood based on the temperature data and the stove image to drive each air guide plate in the air guide plate assembly to open and close, wherein the air guide plate assembly includes a first air guide plate, a second air guide plate, a third air guide plate and a driving mechanism, and the driving mechanism is used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close a first air inlet, a second air inlet and a third air inlet of the range hood, respectively, and the third air inlet is located between the first air inlet and the second air inlet.

[0030] According to the range hood, air intake control method and storage medium for the range hood according to the embodiment of the present invention, the range hood includes a camera and a pyrolysis module, which are respectively used to collect stove images and temperature data, and control the opening and closing of the air guide plate based on these two types of information. Compared with the air guide plate control scheme that only uses temperature data, this control technology can effectively reduce the probability of false detection, improve control accuracy, and thus more effectively absorb oil smoke.

[0031] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed description. The summary of the invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0032] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0034] Figure 1A schematic block diagram of a range hood according to an embodiment of the present invention is shown;

[0035] Figure 2 A front view of a range hood and a stove according to an embodiment of the present invention is shown;

[0036] Figure 3 A left side view showing a range hood and a stove according to an embodiment of the present invention; and

[0037] Figure 4 A schematic flow chart of an air intake control method for a range hood according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0038] In the following description, a large amount of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only exemplarily illustrates a preferred embodiment of the present invention, and the present invention can be implemented without one or more such details. In addition, in order to avoid confusion with the present invention, some technical features well known in the art are not described in detail.

[0039] In order to at least partially solve the above technical problems, the embodiments of the present invention provide a range hood, an air intake control method for the range hood, and a storage medium. The range hood according to the embodiments of the present invention includes a camera and a thermal release module, which are respectively used to collect stove images and temperature data, and control the opening and closing of the air guide plate based on these two types of information. Compared with the air guide plate control scheme that only uses temperature data, this control technology can effectively reduce the probability of false detection, improve control accuracy, and thus more effectively absorb oil smoke.

[0040] Next, we will combine Figures 1 to 3 A range hood according to an embodiment of the present invention is described. Figure 1 FIG. 1 is a schematic block diagram of a range hood 100 according to an embodiment of the present invention. Note that Figure 1 The range hood 100 shown is only an example and is not intended to limit the present invention. The present invention is not limited to Figure 1 For example, Figure 1 The control device 120 is shown as a control chip, which includes a first chip 122 and a second chip 124 (to be described below), but the control device 120 may also be a single chip or include a greater number of chips (e.g., three, etc.). Optionally, the control device 120 may also be another type of device, such as a programmable logic controller (PLC). For another example, the range hood 100 may not be divided into a switch control board 140 and a power board 150, but all components may be implemented on the same circuit board. For another example, the light emitting diode display device ( Figure 1The LED display (abbreviated as LED display) and buttons may be optional, that is, the range hood 100 may optionally include these components.

[0041] like Figure 1 As shown, the range hood 100 includes a pyrolysis module 110 , a camera 160 , a control device 120 and an air guide plate assembly 130 .

[0042] The pyrolysis module 110 is used to detect the temperatures of the first burner and the second burner on the cooker to obtain temperature data.

[0043] Exemplarily, the pyroelectric module 110 can be arranged at any suitable position as long as it can detect the temperature of the first burner and the second burner. It should be noted that the temperature of any burner refers to the temperature at a specific position within a predetermined distance (e.g., 10 cm) around the burner, and the specific position may be pre-set when the range hood 100 is produced or installed, and is known to the control device 120. The temperature at the specific position can be determined by the control device 120 based on the temperature data. It can be understood that when there is a pot above the burner, the temperature of any burner is the temperature in the pot above it.

[0044] Exemplarily, the pyroelectric module 110 can be implemented by a pyroelectric infrared sensor, such as an OTPA-16PM4S sensor. The pyroelectric module 110 can detect the temperature within a preset distance (i.e., its temperature detection range) in real time. Exemplarily, the pyroelectric module 110 can detect 256 (16×16) temperature points at a time, i.e., the temperatures at 256 positions. The pyroelectric module 110 can transmit the detected temperature data to the control device 120.

[0045] The camera 160 is used to capture the image of the stove to obtain the stove image. The camera 160 can capture the stove image in real time. The camera 160 can be set at any suitable position as needed, as long as it can capture the stove image including the first burner and the second burner. For example, the camera 160 can be located in the middle of the top of the range hood 100.

[0046] Figure 2 A front view of a range hood and a stove according to an embodiment of the present invention is shown. Figure 3 FIG. 2 shows a left side view of a range hood and a stove according to an embodiment of the present invention. Figure 2 and Figure 3 Understand the positional relationship between the pyroelectric module, camera and stove burner.

[0047] The air guide assembly 130 may include a first air guide, a second air guide, a third air guide, and a driving mechanism, and the driving mechanism is used to drive the first air guide, the second air guide, and the third air guide to independently open and close the first air inlet, the second air inlet, and the third air inlet of the range hood 100. Figure 1 and 2 In the figure, it is shown that the first air guide plate is the left air guide plate, the second air guide plate is the right air guide plate, and the third air guide plate is the middle air guide plate.

[0048] The air inlet is closed when the air deflector is closed, and the air inlet is opened when the air deflector is opened. Optionally, the air deflector may be a plate capable of adjusting the air volume of the air inlet, for example, it may be a plate with adjustable angle and / or height, and the area of ​​the ventilated area of ​​the corresponding air inlet may be adjusted by changing the angle of the air deflector, or the distance between the corresponding air inlet and the air deflector may be adjusted by changing the height of the air deflector. In other words, when the air deflector is opened, it may be switched between a plurality of different angles and / or a plurality of different heights. Optionally, the air deflector may also be a plate having only two states, open and closed.

[0049] The control device 120 is connected to the pyroelectric module 110, the camera 160 and the driving mechanism respectively. The control device 120 is used to receive the temperature data collected by the pyroelectric module 110 and the stove image collected by the camera 160, and control the driving mechanism to drive each air guide plate to open and close based on the temperature data and the stove image.

[0050] The control device 120 may be any suitable device having data processing capability and / or instruction execution capability. For example, the control device 120 may be implemented by a programmable logic controller (PLC), a digital signal processor (DSP), a field programmable gate array (FPGA), a programmable logic array (PLA), a microprocessor, a central processing unit (CPU), an application specific integrated circuit (ASIC), and other forms of processing units, or a combination of several of them.

[0051] The pyroelectric module 110 and / or the camera 160 may be connected to the control device 120 via a wired or wireless manner. Accordingly, the pyroelectric module 110 and / or the camera 160 may transmit the collected temperature data and / or the stove image to the control device 120 via a wired or wireless manner.

[0052] Exemplarily, the driving mechanism may include an air guide plate motor corresponding to the first air guide plate, the second air guide plate, and the third air guide plate. Figure 1 (not shown), each air deflector motor can be used to drive the corresponding air deflector to move. Accordingly, the driving mechanism can also include a motor driving circuit ( Figure 1(not shown), the circuit can be used to output driving current to each air guide plate motor to drive each air guide plate motor to rotate, thereby driving each air guide plate to move.

[0053] Exemplarily, the control device 120 may control the magnitude of the driving current output to each air deflector motor to control the rotation of each air deflector motor, and further control the opening and closing of each air deflector.

[0054] Exemplarily, the range hood 100 may further include a fan, the fan including a main motor ( Figure 1 The range hood 100 includes a main motor (shown as a DC motor) and a fan, the main motor is used to drive the fan to rotate, thereby sucking out oil smoke. In addition, the range hood 100 may also include a motor drive circuit connected to the main motor, the motor drive circuit is used to output a drive current to the main motor to control the rotation of the main motor. Optionally, the control device 120 can be connected to the motor drive circuit of the main motor, and the control device 120 can also be used to control the size of the drive current output by the motor drive circuit, thereby controlling the speed of the fan (i.e., the working gear of the fan). An embodiment of the control device 120 controlling the working gear of the fan will be described below.

[0055] After receiving the temperature data transmitted by the pyrolysis module 110 and the stove image transmitted by the camera 160, the control device 120 can control the driving current corresponding to each air deflector based on the temperature data and the stove image according to preset rules, thereby controlling the opening and closing of each air deflector.

[0056] Since the air guide assembly 130 includes three air guides, when the first air guide and / or the second air guide cannot effectively smoke, the third air guide can be opened, that is, the third air inlet can be opened to assist the first air inlet and / or the second air inlet to smoke, which can effectively increase the air intake, so that the oil smoke can be quickly absorbed and the kitchen environment pollution can be reduced. This control scheme can quickly and flexibly adjust the air intake and effectively help to absorb the oil smoke.

[0057] Controlling the opening and closing of the air guide plate based solely on temperature data may result in false detection, because, for example, a user may light a gas stove but not cook, i.e., no oil smoke is generated. According to the range hood of an embodiment of the present invention, a camera is used to capture the image of the stove, and the opening and closing of the air guide plate is controlled in combination with the stove image and temperature data, which can reduce the probability of false detection, improve control accuracy, and thus more effectively absorb oil smoke.

[0058] According to an embodiment of the present invention, the driving mechanism may include a lifting mechanism connected to the third air guide plate. The third air guide plate has a raised closed position and a lowered open position under the drive of the lifting mechanism. When the third air guide plate is in the raised closed position, the third air inlet is closed, and when the third air guide plate is in the lowered open position, the third air inlet is opened.

[0059] The lifting mechanism may be disposed inside the housing of the range hood and connected to the third air guide plate to drive the third air guide plate to rise and fall (i.e., close and open). The raised closed position of the third air guide plate refers to the position of the third air guide plate when the lifting mechanism is in the minimum telescopic state, at which the third air inlet is completely hidden relative to the outside of the range hood 100, and the third air inlet is closed. Conversely, the lowered open position of the third air guide plate refers to the position of the third air guide plate when the lifting mechanism is in the maximum telescopic state, at which the third air inlet is completely exposed relative to the outside of the range hood 100, and the third air inlet is open.

[0060] When a large amount of oil smoke appears in the kitchen, the lifting mechanism drives the third air guide plate to move to the lowered open position, and the third air inlet is opened. At this time, the oil smoke can enter the interior of the range hood 100 through the third air inlet, and then be discharged to the outside of the kitchen. When the kitchen oil smoke is reduced to a certain extent, the lifting mechanism drives the third air guide plate to move to the raised closed position, and the third air inlet is closed. At this time, the third air guide plate isolates the odor and residual oil smoke inside the range hood 100 from the kitchen environment.

[0061] The present invention can increase the area of ​​the air inlet by arranging the third air inlet between the first air inlet and the second air inlet. When the oil smoke generated by cooking is large, the third air inlet can be opened to quickly absorb the oil smoke, which can effectively protect the environmental sanitation of the kitchen and the health of users. The third air guide plate opens and closes the third air inlet by rising and falling. The third air inlet can be opened only when a large amount of oil smoke appears, and the third air inlet is kept closed at other times. In this way, the purpose of isolating the inside of the range hood from the outside and protecting the internal components of the range hood can be achieved.

[0062] According to an embodiment of the present invention, the driving mechanism may include a first flipping mechanism connected to the first air guide plate and a second flipping mechanism connected to the second air guide plate. The first air guide plate has a flip open position and a flip closed position when driven by the first flipping mechanism. When the first air guide plate is in the flip open position, the first air inlet is opened, and when the first air guide plate is in the flip closed position, the first air inlet is closed. The second air guide plate has a flip open position and a flip closed position when driven by the second flipping mechanism. When the second air guide plate is in the flip open position, the second air inlet is opened, and when the second air guide plate is in the flip closed position, the second air inlet is closed.

[0063] The first flipping mechanism may be disposed inside the housing of the range hood 100 and connected to the first air guide plate, so as to drive the first air guide plate to flip between a flip-open position and a flip-closed position. The second flipping mechanism may be disposed inside the housing of the range hood 100 and connected to the second air guide plate, so as to drive the second air guide plate to flip between a flip-open position and a flip-closed position. The flip-open position of the first air guide plate and the second air guide plate refers to the position of each air guide plate when the respective flipping mechanisms are at one end of the flipping stroke, at which time the corresponding air inlet is fully exposed relative to the outside of the range hood 100, and the corresponding air inlet is open. The flip-closed position of the first air guide plate and the second air guide plate refers to the position of each air guide plate when the respective flipping mechanisms are at the other end of the flipping stroke, at which time the corresponding air inlet is fully hidden relative to the outside of the range hood 100, and the corresponding air inlet is closed.

[0064] When oil smoke appears on the first side (for example, the left side), the first air guide plate is flipped open, and the first air inlet is opened. At this time, the oil smoke can enter the interior of the range hood 100 along the first air guide plate through the first air inlet, and then be discharged outside the kitchen. When the oil smoke on the first side disappears, the first air guide plate is flipped closed, so the first air inlet is closed, and the first air guide plate isolates the odor and residual oil smoke inside the range hood 100 and the flue from the kitchen environment. Similarly, when oil smoke appears on the second side (for example, the right side), the second air guide plate is flipped open, and the second air inlet is opened. At this time, the oil smoke can enter the interior of the range hood 100 along the second air guide plate through the second air inlet, and then be discharged outside the kitchen. When the oil smoke on the second side disappears, the second air guide plate is flipped closed, so the second air inlet is closed, and the second air guide plate isolates the odor and residual oil smoke inside the range hood 100 and the flue from the kitchen environment.

[0065] Through this flipping setting, the space occupied by the first air guide plate and the second air guide plate when they are opened can be reduced, thereby reducing the use space of the range hood 100, which helps to increase the user's activity space when cooking.

[0066] Exemplarily, each of the first flipping mechanism and the second flipping mechanism includes: a motor fixed in the housing of the range hood 100; a first transmission rod having a first end and a second end, the first end being connected to the rotating shaft of the motor; and a second transmission rod having a third end and a fourth end, the third end being pivotally connected to the second end, and the fourth end being pivotally connected to the corresponding first air guide plate or the second air guide plate.

[0067] For example, the first flip mechanism may include a motor, a first transmission rod and a second transmission rod. The motor is fixed inside the housing of the range hood 100. The first end of the first transmission rod is provided with a structure matching the rotating shaft of the motor, such as a hole, through which the first transmission rod is connected to the rotating shaft of the motor. The second end and the third end of the second transmission rod are provided with a matching structure, such as an axial hole, so that the first transmission rod and the second transmission rod can be pivotally connected together. The fourth end of the second transmission rod is provided with a matching structure, such as an axial hole, and the first air guide plate is pivotally connected together. Through this arrangement, the side wall of the range hood housing, the first transmission rod, the second transmission rod and the first air guide plate form a four-bar linkage, thereby realizing the function of the first air guide plate being turned over by the rotation of the rotating shaft of the motor through the first transmission rod and the second transmission rod. The structure and working principle of the second flip mechanism are similar and will not be repeated.

[0068] The flip mechanism implemented by the motor, the first transmission rod and the second transmission rod has a simple component structure, low processing cost, small weight and volume, which can effectively reduce the weight and manufacturing cost of the range hood 100 and simplify its internal structure.

[0069] Exemplarily, the lifting mechanism may include: a linear motor, which is fixed in the shell of the range hood 100; a slide rail, the slide rail having a fixed part and a sliding part, the fixed part is fixed in the shell of the range hood 100, and the sliding part is connected to the linear motor and the third air guide plate, and the linear motor drives the third air guide plate to rise and fall through the sliding part.

[0070] The lifting mechanism of the range hood 100 is provided with a linear motor and a slide rail. The linear motor is fixed inside the housing of the range hood 100 by a threaded connector. The slide rail can be similar to the slide rail used in a drawer. The slide rail includes a fixed part and a sliding part. The fixed part is fixed inside the housing of the range hood 100, for example, by a threaded connector. The sliding part can be connected to the linear motor and the third air guide plate. Exemplarily, one end of the sliding part can be provided with a structure matching the rotating shaft of the linear motor, such as a hole, through which the transmission shaft of the linear motor is connected. The other end of the sliding part can be fixed to the third air guide plate by three struts, and can be slidably connected to the fixed part by a slide groove or other forms. When the transmission shaft of the linear motor is extended, the sliding part is driven to move downward synchronously along the track of the fixed part, and the third air guide plate is driven to realize the function of landing through the three struts, thereby opening the third air inlet. Similarly, when the transmission shaft of the linear motor is retracted, the sliding part is driven to move upward synchronously along the track of the fixed part, and the third air guide plate is driven to realize the function of lifting through the three struts, thereby closing the third air inlet. Through this arrangement, the noise generated by the third air guide plate during the raising and lowering process can be effectively reduced, the resistance to movement can be reduced, and the power of the linear motor can be reduced, thereby achieving the purpose of energy saving and emission reduction.

[0071] The method of controlling the opening and closing of the air deflector by combining the stove image and temperature data may include: determining whether there is a pot above the burner (i.e., whether the gas stove is in use) based on the stove image; when it is determined that there is a pot above the first burner and / or the second burner, it may be further determined based on the temperature data when the air deflector is opened, to which position it is opened, and which working gear the fan adopts.

[0072] According to the embodiment of the present invention, the control device 120 may be specifically used to: perform image recognition on the stove image to determine whether there is a pot above the first burner and / or the second burner.

[0073] Any existing or future image recognition method may be used to perform image recognition on the stove image, so as to identify whether there are pots above the first burner and the second burner.

[0074] By performing image recognition on the stove image, it is possible to relatively accurately determine whether there are pots above the first burner and the second burner, and thus determine whether the corresponding first gas stove and the second gas stove are in use. The corresponding air guide plate can be allowed to open only when the gas stove is in use. With the assistance of the stove image, the control accuracy of the air guide plate can be greatly improved, effectively avoiding false detection.

[0075] According to an embodiment of the present invention, the control device 120 can be specifically used to: when a first condition is determined to be met based on temperature data and a stove image, control the drive mechanism to drive the third air guide plate to open, wherein the first condition is that the temperature of any one of the first burner 210 and the second burner 220 is greater than a first temperature threshold and there is a pot above the burner.

[0076] The temperature of the first furnace head and the temperature of the second furnace head may be determined based on the temperature data.

[0077] The first temperature threshold may be any suitable value, which may be set as required, and the present invention is not limited thereto. For example, the first temperature threshold may be 100° C., 120° C., 150° C., 200° C., and the like.

[0078] Exemplarily, the first air guide plate and the second air guide plate can be regarded as corresponding to the first burner and the second burner, respectively, and the first air guide plate and the second air guide plate can be optionally opened according to the following rules: when the first burner is in use (for example, there is a pot above the first burner), the first air guide plate can be opened first, and the first air inlet can be mainly used for smoking; when the second burner is in use (for example, there is a pot above the second burner), the second air guide plate can be opened first, and the second air inlet can be mainly used for smoking.

[0079] The opening rule of the third air guide plate can be set as needed, and it can have multiple implementation schemes. In one embodiment, when the temperature of any one of the first burner and the second burner is greater than the first temperature threshold and there is a pot above the burner, the drive mechanism can be controlled to drive the third air guide plate to open. That is to say, in this embodiment, it is only necessary that the temperature of any one burner exceeds the threshold and there is a pot above it, and it is not necessary for the temperatures of the two burners to meet certain conditions at the same time. With this solution, when any burner is used, the third air inlet can be opened in time to increase the air intake, so that the oil smoke can be sucked in more cleanly.

[0080] For example, when the temperature of the first burner is greater than a certain threshold (i.e., the first temperature threshold), relying solely on the first air inlet to intake air may not be able to effectively absorb the fume, so you can choose to open the third air guide plate at this time. In this case, you do not need to consider the temperature of the second burner, that is, regardless of whether the second gas stove corresponding to the second burner is turned on or not, you can choose to open the third air guide plate. The processing method when the temperature of the second burner is greater than the first temperature threshold is similar and will not be repeated. Of course, if the temperatures of the first burner and the second burner are both greater than the first temperature threshold, the third air guide plate also needs to be opened.

[0081] It should be noted that, in the case where the air deflector has only two states, open and closed, the opening of a certain air deflector described herein may refer to placing the air deflector in the only open state. In the case where the angle and / or height of the air deflector are adjustable, the opening of a certain air deflector described herein may refer to opening the air deflector to a certain angle and / or height (hereinafter collectively described as an opening station), and the specific angle and / or height to which it is opened may optionally be determined based on temperature data.

[0082] According to an embodiment of the present invention, the control device 120 can be specifically used to: when the third air guide plate is open, when it is determined based on the temperature data and the stove image that the first condition is not satisfied for a first preset time, control the driving mechanism to drive the third air guide plate to close.

[0083] The first preset time can be any suitable time, which can be set as needed, and the present invention is not limited to this. Exemplarily, the first preset time can be 10 seconds, 20 seconds, 40 seconds, 1 minute, 2 minutes, etc. Of course, optionally, the first preset time can be 0.

[0084] It can be understood that the first condition is not satisfied if the temperatures of the first burner and the second burner are both less than or equal to the first temperature threshold, or there are no pots above the first burner and the second burner, or the temperature of one of the first burner and the second burner is greater than the first temperature threshold but there is no pot above the burner.

[0085] The following description is based on the example that the first temperature threshold is 200°C and the first preset time is 30 seconds. In the case where there is a pot above the first burner, when the temperature of the first burner exceeds 200°C, the third air guide plate is opened. Subsequently, the user may turn off the fire or reduce the firepower, so that the temperature of the first burner gradually decreases until it drops below 200°C. Subsequently, if it is determined that the temperature of the first burner has been below 200°C for more than 30 seconds, the third air guide plate can be closed. In addition, the stove image can be collected in real time. If it is found that there is no pot above the first burner for more than 30 seconds, the third air guide plate can also be closed.

[0086] When it is determined that the state in which the first condition is not satisfied continues for a first preset time, the driving mechanism is controlled to drive the third air guide plate to close. This solution can intelligently and automatically close the air guide plate in a timely manner, and the user experience is better.

[0087] According to an embodiment of the present invention, the control device 120 can be specifically used to: when it is determined that the second condition is met based on the temperature data and the stove image, control the driving mechanism to drive the third air guide plate to open, wherein the second condition is that the temperature of any one of the first burner 210 and the second burner 220 is greater than the second temperature threshold and the temperature of the other of the first burner 210 and the second burner 220 is greater than the third temperature threshold and there are pots above the first burner 210 and the second burner 220.

[0088] In this embodiment, it is necessary to check the temperature of the two burners and their usage at the same time, and the third air guide plate is opened only when the temperature of the two burners is greater than a certain threshold and there are pots on them.

[0089] The second temperature threshold and the third temperature threshold can be any suitable value, which can be set as needed, and the present invention is not limited to this. Exemplarily, the second temperature threshold can be 100°C, 120°C, 150°C, 200°C, etc. Exemplarily, the third temperature threshold can be 100°C, 120°C, 150°C, 200°C, etc.

[0090] Exemplarily, the second temperature threshold and the third temperature threshold may be equal or unequal.

[0091] In one example, the second temperature threshold is 60° C. and the third temperature threshold is 200° C. That is, the third air guide plate can be opened only when the temperature of one of the first burner and the second burner is greater than 60° C. and the temperature of the other burner is greater than 200° C., and there are pots above both burners.

[0092] With this solution, the third air inlet is opened only when the two burners are in use and the temperature reaches a certain threshold to increase the air intake. This can save power to a certain extent and avoid frequent opening and closing of the third air guide plate when there is not much oil smoke.

[0093] According to an embodiment of the present invention, the control device 120 can be specifically used to: when the third air guide plate is open, when it is determined based on the temperature data and the stove image that the second condition is not satisfied for a second preset time, control the driving mechanism to drive the third air guide plate to close.

[0094] The second preset time can be any suitable time, which can be set as needed, and the present invention is not limited to this. Exemplarily, the second preset time can be 10 seconds, 20 seconds, 40 seconds, 1 minute, 2 minutes, etc. Of course, optionally, the second preset time can be 0.

[0095] It can be understood that the second condition is not satisfied if the temperature of any one of the first burner and the second burner is less than or equal to the smaller of the second temperature threshold and the third temperature threshold, or the temperatures of both the first burner and the second burner are less than or equal to the larger of the second temperature threshold and the third temperature threshold, or there is no pot above any one of the first burner and the second burner.

[0096] The following description is based on the example that the second temperature threshold is 60°C, the third temperature threshold is 200°C, and the second preset time is 30 seconds. When the temperature of the first burner exceeds 60°C and the temperature of the second burner exceeds 200°C, and there are pots above both burners, the third air guide plate is opened. Subsequently, the user may turn off the fire or reduce the firepower, so that the temperature of the second burner gradually decreases until it drops below 200°C, while the temperature of the first burner remains at around 100°C. Subsequently, if it is determined that the temperatures of the first burner and the second burner are both below 200°C for more than 30 seconds, the third air guide plate can be closed. In addition, the stove image can be collected in real time. If it is found that there is no pot above any burner for more than 30 seconds, the third air guide plate can also be closed.

[0097] When it is determined that the state in which the second condition is not satisfied continues for a second preset time, the driving mechanism is controlled to drive the third air guide plate to close. This solution can intelligently and automatically close the air guide plate in a timely manner, and the user experience is better.

[0098] According to an embodiment of the present invention, the control device 120 is specifically used to: when it is determined that a third condition is met based on the temperature data and the stove image, control the driving mechanism to drive the third air guide plate to open, wherein the third condition is that the sum of the temperatures of the first burner 210 and the second burner 220 is greater than a fourth temperature threshold and there are pots above the first burner 210 and / or the second burner 220.

[0099] In this embodiment, it is necessary to check the temperatures of the two burners at the same time to ensure that the third air guide plate is opened only when the sum of the temperatures of the two burners is greater than a certain threshold and there is a pot above at least one of the burners.

[0100] The fourth temperature threshold may be any suitable value, which may be set as required, and the present invention is not limited thereto. For example, the fourth temperature threshold may be 100° C., 120° C., 150° C., 200° C., and the like.

[0101] With this solution, the third air inlet is opened only when the sum of the temperatures of the two burners reaches a certain threshold to increase the air intake. This can save power to a certain extent and avoid frequent opening and closing of the third air guide plate when there is not much oil smoke.

[0102] According to an embodiment of the present invention, the control device 120 is specifically used to: when the third air guide plate is open, when it is determined based on the temperature data and the stove image that the third condition is not satisfied for a third preset time, control the driving mechanism to drive the third air guide plate to close.

[0103] The third preset time can be any suitable time, which can be set as needed, and the present invention is not limited to this. Exemplarily, the third preset time can be 10 seconds, 20 seconds, 40 seconds, 1 minute, 2 minutes, etc. Of course, optionally, the third preset time can be 0.

[0104] It can be understood that the state in which the sum of the temperatures of the first burner and the second burner is less than or equal to the fourth temperature threshold or there is no pot above the first burner and the second burner is a state in which the third condition is not satisfied.

[0105] When it is determined that the third air guide plate is not qualified to open and / or it is determined that the third condition is not satisfied for a third preset time, the driving mechanism is controlled to drive the third air guide plate to close. This solution can intelligently and automatically close the air guide plate in a timely manner, providing a better user experience.

[0106] According to an embodiment of the present invention, the control device 120 can be specifically used to: when it is determined based on the temperature data and the stove image that the fourth condition is met, control the drive mechanism to drive the first air guide plate to open, wherein the fourth condition is that the temperature of the first burner 210 is greater than the fifth temperature threshold and there is a pot above the first burner 210; and / or, when it is determined based on the temperature data and the stove image that the fifth condition is met, control the drive mechanism to drive the second air guide plate to open, wherein the fifth condition is that the temperature of the second burner 220 is greater than the fifth temperature threshold and there is a pot above the second burner 220.

[0107] The fifth temperature threshold value may be any suitable value, which may be set as required, and the present invention is not limited thereto. Exemplarily, the fifth temperature threshold value may be 60°C, 80°C, 100°C, 120°C, and the like. Preferably, when the first burner and / or the second burner are used, the first air guide plate and / or the second air guide plate are opened preferentially, and when the air intake of the first air inlet and / or the second air inlet is insufficient, the third air guide plate is opened. Therefore, preferably, among the first temperature threshold value, the second temperature threshold value, the third temperature threshold value, and the fifth temperature threshold value, the fifth temperature threshold value is the smallest.

[0108] The first burner and the second burner correspond to the first air guide plate and the second air guide plate respectively. When there are pots above the first burner and the second burner, the first air guide plate and the second air guide plate can be respectively controlled to be opened and closed according to the temperature of the first burner and the second burner, so that the oil smoke generated when the corresponding burners are used can be sucked through the first air inlet and the second air inlet. Compared with a single air inlet, the range hood including the first air inlet and the second air inlet can also effectively improve the smoke extraction effect.

[0109] According to an embodiment of the present invention, the control device 120 can be specifically used to: when the first air guide plate is open, when it is determined based on the temperature data and the stove image that the fourth condition is not satisfied for a fourth preset time, control the drive mechanism to drive the first air guide plate to close; and / or, when the second air guide plate is open, when it is determined based on the temperature data and the stove image that the fifth condition is not satisfied for a fifth preset time, control the drive mechanism to drive the second air guide plate to close.

[0110] The fourth preset time and the fifth preset time can be any suitable time, which can be set as needed, and the present invention is not limited thereto. Exemplarily, the fourth preset time or the fifth preset time can be 10 seconds, 20 seconds, 40 seconds, 1 minute, 2 minutes, etc. Of course, optionally, the fourth preset time or the fifth preset time can be 0.

[0111] The closing scheme of the first and second air guide plates and their advantages can be understood by referring to the above description of the embodiment of closing the third air guide plate, which will not be described in detail here.

[0112] According to an embodiment of the present invention, the fifth temperature threshold is lower than the first temperature threshold.

[0113] For example, the first temperature threshold may be 200°C, and the fifth temperature threshold may be 60°C. For example, when the user uses the first gas stove, the temperature of the first burner gradually rises, and when the temperature of the first burner exceeds 60°C, the first air guide plate is opened. If the user subsequently increases the firepower, such as using a high-fire mode, the temperature of the first burner may exceed 200°C, and the third air guide plate may be opened at this time. It is understood that when the temperature of the first burner exceeds 200°C, both the first and third air guide plates are opened.

[0114] According to this embodiment, the first air guide plate and / or the second air guide plate can be opened preferentially, and the third air guide plate can be used as an auxiliary when the air intake is insufficient. This working mode is a more targeted and reasonable oil fume absorption mode.

[0115] According to an embodiment of the present invention, the second temperature threshold is not equal to the third temperature threshold, and the fifth temperature threshold is less than or equal to the smaller one of the second temperature threshold and the third temperature threshold.

[0116] For example, the second temperature threshold and the fifth temperature threshold may be 60°C, and the third temperature threshold may be 200°C. For example, assuming that the user uses the first gas stove and the second gas stove at the same time, when the temperature of the first burner exceeds 60°C, the first air guide plate is opened, and when the temperature of the second burner also exceeds 60°C, the second air guide plate is opened. If the user adjusts the first gas stove to high fire mode and the second gas stove is still in low fire mode, the temperature of the first burner may exceed 200°C and the temperature of the second burner may exceed 60°C, and the third air guide plate may be opened at this time. It can be understood that when the temperature of the first burner exceeds 200°C and the temperature of the second burner exceeds 60°C, the first air guide plate, the second air guide plate and the third air guide plate are all opened.

[0117] It is possible that when both the first and second air guide plates are opened, the temperature of a burner still rises to a high level, so that the two air inlets cannot absorb clean oil smoke, so you can choose to open the third air guide plate. In other words, there is no need to wait until the temperatures of the two burners rise to a certain level before opening the third air guide plate, which can reduce the pollution caused by some stoves that are prone to produce oil smoke.

[0118] According to the embodiment of the present invention, the second temperature threshold is equal to the third temperature threshold, and the fifth temperature threshold is smaller than the second temperature threshold and the third temperature threshold.

[0119] For example, the fifth temperature threshold may be 60°C, and the second temperature threshold and the third temperature threshold may be 200°C. For example, assuming that the user uses the first gas stove and the second gas stove at the same time, when the temperature of the first burner exceeds 60°C, the first air guide plate is opened, and when the temperature of the second burner also exceeds 60°C, the second air guide plate is opened. If the user adjusts the first gas stove to high fire mode and the second gas stove is still in low fire mode, the temperature of the first burner may exceed 200°C and the temperature of the second burner may exceed 60°C, and the third air guide plate is not opened at this time. If the user adjusts both the first gas stove and the second gas stove to high fire mode, the temperature of both the first burner and the second burner may exceed 200°C, and the third air guide plate may be opened at this time. It can be understood that when the temperature of the first burner exceeds 200°C and the temperature of the second burner exceeds 200°C, the first air guide plate, the second air guide plate and the third air guide plate are all opened.

[0120] Sometimes the air intake of the first and second air inlets is large, which can meet the smoking needs relatively well most of the time. Only when the temperature of the two burners rises to a certain level (for example, the two gas stoves enter the stir-fry mode at the same time), the clean oil smoke may not be absorbed. At this time, the third air guide plate can be opened, so that the oil smoke can be absorbed in time while saving power consumption as much as possible.

[0121] According to the embodiment of the present invention, the range hood 100 may further include a fan, and the control device 120 may further be used to control the working position of the fan based on the temperature data and the stove image.

[0122] As described above, the control device 120 can also be used to control the working gear of the fan by controlling the driving current of the main motor. The fan can have any number of working gears, such as three working gears: high gear, medium gear, and low gear, and different working gears correspond to different fan speeds.

[0123] When there is no pot above the two burners, that is, the gas stove is not in use, and the first air guide plate, the second air guide plate, and the third air guide plate are not eligible to be opened, it is not necessary to turn on the fan, which can save power. For example, when there is a pot above any burner or both burners, as the temperature of the burners increases, the control device 120 can increase the working gear of the fan accordingly. This solution can further provide a larger air intake by adjusting the working gear of the fan to absorb oil smoke in time.

[0124] There are various rules for adjusting the working gear of the fan, and several exemplary implementation schemes are described below.

[0125] According to an embodiment of the present invention, the fan has multiple working gears corresponding to multiple temperature ranges. The control device 120 can be specifically used to: when it is determined based on the temperature data that the temperature of any one of the first burner 210 and the second burner 220 is less than the sixth temperature threshold and the temperature of the other of the first burner 210 and the second burner 220 falls into a specific temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the other burner, control the fan to operate at the working gear corresponding to the specific temperature range; when it is determined based on the temperature data that the temperature of any one of the first burner 210 and the second burner 220 falls into a first temperature range among the multiple temperature ranges and the temperature of the other of the first burner 210 and the second burner 220 falls into a second temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the first burner 210 and the second burner 220, control the fan to operate at the working gear corresponding to the first temperature range, the second temperature range, or any temperature range between the first temperature range and the second temperature range.

[0126] The sixth temperature threshold may be any suitable value, which may be set as required, and the present invention is not limited thereto. Exemplarily, the sixth temperature threshold may be 60°C, 80°C, 100°C, 120°C, and the like. In one example, the sixth temperature threshold is equal to the fifth temperature threshold, for example, the sixth temperature threshold and the fifth temperature threshold are both 60°C. In an embodiment where the sixth temperature threshold is equal to the fifth temperature threshold, when any burner is less than the sixth temperature threshold, the air guide plate corresponding to the burner is closed, and at this time, only the temperature of the other burner may be considered, and the corresponding working gear may be selected according to the temperature range into which the temperature of the other burner falls.

[0127] For example, it is assumed that the working gear of the fan is divided into three gears: low gear, medium gear and high gear, which correspond to the following three temperature ranges respectively: greater than or equal to 60°C and less than 150°C, greater than or equal to 150°C and less than 200°C, and greater than or equal to 200°C. In one example, when the temperature of the first burner is less than 60°C, the first air guide plate is not opened. At this time, if the temperature of the second burner is greater than or equal to 60°C and less than 150°C and there is a pot above the second burner, the second air guide plate can be opened and the fan can be controlled to work at the low gear at the same time. If the temperature of the second burner is greater than or equal to 150°C and less than 200°C and there is a pot above the second burner, the second air guide plate can be opened and the fan can be controlled to work at the medium gear at the same time. If the temperature of the second burner is greater than or equal to 200°C and there is a pot above the second burner, the second air guide plate can be opened and the fan can be controlled to work at the high gear at the same time.

[0128] In another example, when the temperature of the first burner is greater than or equal to 60°C and less than 150°C, and the temperature of the second burner is greater than or equal to 200°C, and there are pots above both the first burner and the second burner, the first air guide plate and the second air guide plate can be opened, and the fan can be controlled to operate at one of low, medium and high gears. Preferably, the working gear of the fan can be determined according to the temperature range into which the temperature of the burner with a higher temperature falls. For example, in the above example, the fan can be controlled to operate at a high gear.

[0129] Through the above scheme, the working gear of the fan can be adjusted according to the rise and fall of the temperature of any one or two burners. At the same time, the air intake volume can be adjusted more flexibly by cooperating with the switch of the air guide plate.

[0130] According to an embodiment of the present invention, the first air guide plate has multiple first opening positions corresponding to multiple temperature ranges. The control device 120 can be specifically used for: when it is determined based on temperature data that the temperature of the first burner 210 falls into a specific temperature range among multiple temperature ranges and it is determined based on the stove image that there is a pot above the first burner 210, the control driving mechanism drives the first air guide plate to open to the first opening position corresponding to the specific temperature range.

[0131] The first opening position may include an angle and / or height of the first air deflector. For example, the first air deflector and / or the second air deflector may be an air deflector that can be flipped between a flip open position and a flip closed position, and the air deflector is opened to different angles to adjust the area of ​​the ventilated area of ​​the air inlet. The third air deflector may be a lifting air deflector, and the air deflector can be lifted to different heights to adjust the distance between the air inlet and the air deflector.

[0132] Exemplarily, the first opening position may refer to the angle of the first air guide plate. For example, the first air guide plate may have three opening positions, i.e., three opening angles: a first angle, a second angle, and a third angle, which respectively correspond to the following three temperature ranges: greater than or equal to 60°C and less than 150°C, greater than or equal to 150°C and less than 200°C, and greater than or equal to 200°C.

[0133] In one example, if the temperature of the first burner is greater than or equal to 60°C and less than 150°C and there is a pot above the first burner, the drive mechanism can be controlled to drive the first air guide plate to open to a first angle; if the temperature of the first burner is greater than or equal to 150°C and less than 200°C and there is a pot above the first burner, the drive mechanism can be controlled to drive the first air guide plate to open to a second angle; if the temperature of the first burner is greater than or equal to 200°C and there is a pot above the first burner, the drive mechanism can be controlled to drive the first air guide plate to open to a third angle.

[0134] Through the above scheme, the opening position of the first air guide plate can be adjusted as the temperature of the first furnace head rises or falls, so that the air intake volume can be adjusted more flexibly.

[0135] According to an embodiment of the present invention, the second air guide plate has multiple second opening positions corresponding to multiple temperature ranges. The control device 120 can be specifically used for: when it is determined based on temperature data that the temperature of the second burner 220 falls into a specific temperature range among multiple temperature ranges and it is determined based on the stove image that there is a pot above the second burner 220, the control driving mechanism drives the second air guide plate to open to the second opening position corresponding to the specific temperature range.

[0136] The second opening position may include an angle and / or a height of the second air guide plate. As described above, the second air guide plate may be an air guide plate that can be flipped between a flip-open position and a flip-closed position.

[0137] For example, the second air guide plate can have three opening positions, i.e., three opening angles: a first angle, a second angle and a third angle, which correspond to the following three temperature ranges respectively: greater than or equal to 60°C and less than 150°C, greater than or equal to 150°C and less than 200°C, and greater than or equal to 200°C.

[0138] In one example, when the temperature of the second burner is greater than or equal to 60°C and less than 150°C and there is a pot above the second burner, the driving mechanism can be controlled to drive the second air guide plate to open to a first angle; if the temperature of the second burner is greater than or equal to 150°C and less than 200°C and there is a pot above the second burner, the driving mechanism can be controlled to drive the second air guide plate to open to a second angle; if the temperature of the second burner is greater than or equal to 200°C and there is a pot above the second burner, the driving mechanism can be controlled to drive the second air guide plate to open to a third angle.

[0139] Through the above scheme, the opening position of the second air guide plate can be adjusted as the temperature of the second furnace head rises or falls, so that the air intake volume can be adjusted more flexibly.

[0140] According to an embodiment of the present invention, the pyroelectric module 110 can be located in the middle of the top of the range hood 100, so that the temperatures of the two burners can be detected more evenly and the temperature detection error can be reduced. For example, the camera 160 can also be located in the middle of the top of the range hood 100, so that a better quality stove image can be collected. Figure 2 , showing the locations of the pyroelectric module and the camera. Optionally, the pyroelectric module 110 can be arranged at any location as long as its temperature detection range can cover the first furnace head and the second furnace head.

[0141] Optionally, the pyroelectric module 110 may include one or more pyroelectric infrared sensors. Since the temperature detection range of the pyroelectric infrared sensor is relatively wide, a single pyroelectric infrared sensor is generally used to detect the temperature of the two burners, and this solution can effectively save costs. Of course, multiple pyroelectric infrared sensors can also be provided as needed. For example, two pyroelectric infrared sensors can be respectively installed above the first burner and the second burner, wherein the first pyroelectric infrared sensor is used to detect the temperature of the first burner, and the second pyroelectric infrared sensor is used to detect the temperature of the second burner.

[0142] According to an embodiment of the present invention, the range hood 100 may further include an input component for receiving air deflector indication information input by a user for indicating the opening and closing of air deflectors in the air deflector assembly 130. The control device 120 is connected to the input component. The control device 120 may also be used to control a driving mechanism to drive each air deflector to open and close based on the air deflector indication information.

[0143] Exemplarily, the input component may be any hardware capable of receiving user instructions, for example, it may include one or more of a keyboard, a mouse, a microphone, a touch screen, etc. Exemplarily, the input component may also be a wired or wireless communication component for receiving wind deflector indication information input by a user transmitted from an external device. The external device may be a personal computer, a mobile terminal, a server, etc.

[0144] For example, a plurality of air deflector control buttons, such as three air deflector control buttons, may be provided on the switch control panel of the range hood, and are respectively used to control the opening and closing of the three air deflectors. For example, when a user presses the first air deflector control button, the driving mechanism may be controlled to drive the first air deflector to open, and when the first air deflector control button is pressed again, the driving mechanism may be controlled to drive the first air deflector to close.

[0145] An input component is provided for the user, so that the user can manually control the opening and closing of each air guide plate when necessary, so that the user can also have a greater degree of control freedom and a better user experience.

[0146] Exemplarily, the input component can also be used to receive mode indication information input by a user to indicate an automatic control mode, and the control device 120 can also be used to receive temperature data collected by the pyrolysis module 110 and the stove image collected by the camera 160 in response to the reception of the mode indication information, and control the driving mechanism to drive each air guide plate to open and close based on the temperature data and the stove image.

[0147] Exemplarily, the input component may further include a manual / automatic control button for switching the control mode between the manual control mode and the automatic control mode. For example, when the user presses the manual / automatic control button for the first time, the manual control mode is turned on, and the user can control the switch of each air deflector through the air deflector control button. When the user presses the manual / automatic control button again, the automatic mode is turned on, and the control device 120 can start to read the temperature data and control the switch of each air deflector based on the temperature data.

[0148] According to an embodiment of the present invention, the range hood 100 may further include a switch control board 140 and a power board 150, and the control device 120 includes a first chip 122 and a second chip 124, the first chip 122 is integrated on the switch control board 140, and the second chip 124 is integrated on the power board 150, the first chip 122 is connected to the thermal release module 110, and is used to receive temperature data and transmit the temperature data to the second chip 124; the second chip 124 is respectively connected to the camera 160 and the driving mechanism, and is used to receive temperature data and stove images, and control the driving mechanism to drive each air guide plate to open and close based on the temperature data and the stove image.

[0149] Return to see Figure 1 , showing the switch control panel 140 and the power panel 150. The switch control panel 140 can be arranged on the front of the range hood 100, and is mainly used for interacting with the user. For example, the user can input instructions through the buttons on the switch control panel 140 (such as the above-mentioned air guide plate control button, manual / automatic control button, etc.), and can also view information related to the range hood (such as the working gear of the fan, etc.) through the LED display device on the switch control panel 140.

[0150] The power board 150 may be disposed inside the housing of the range hood 100, and is mainly used to supply power to various components of the range hood. The power board 150 may include a power circuit and a motor drive circuit of a main motor, etc. The first chip 122 and the second chip 124 are respectively integrated on the switch control board 140 and the power board 150, and may communicate in a wired or wireless manner.

[0151] Preferably, the pyroelectric module 110 is also disposed on the front of the range hood 100 to facilitate detection of the first burner and the second burner. Therefore, the pyroelectric module 110 can be connected to the first chip 122, and transmit temperature data to the second chip 124 via the first chip 122, so that the second chip 124 controls the opening and closing of the air guide plate.

[0152] Separating the control device facilitates the distributed layout of the components of the range hood 100 and reduces the impact between circuits. In addition, this separation solution can be well adapted to the conventional range hood architecture, thereby reducing development costs.

[0153] An exemplary air intake control method of the range hood 100 is described below in conjunction with Table 1. The air intake control method shown in Table 1 is a control method based on the premise that there are pots above the first burner and the second burner. Table 1 is a table of correspondence between burner temperature, fan working gear and air guide plate switch state. In the embodiment shown in Table 1, the fan working gear is divided into two gears, low gear and high gear, and the three air guide plates have only two states of opening and closing. In Table 1, the left temperature refers to the temperature of the left burner (i.e., the first burner), and the right temperature refers to the temperature of the right burner (i.e., the second burner). Observing Table 1, it can be seen that when the temperature of the left burner or the right burner is greater than 60°C, the corresponding left air guide plate or the right air guide plate is opened (see the above embodiment related to the fifth temperature threshold). The middle air guide plate is only opened when the temperature of one of the left burner and the right burner is greater than 60°C and the temperature of the other is greater than 200°C (see the above embodiment related to the second temperature threshold and the third temperature threshold). When only one burner is used (the temperature of the other burner does not exceed 60°C), the fan selects the working gear based on the temperature range of the burner, and uses the low gear when the temperature does not exceed 200°C, and uses the high gear when the temperature exceeds 200°C (see the above embodiment related to the sixth temperature threshold). When two burners are used (the temperature of both burners exceeds 60°C), the fan uses the high gear only when the temperature of both burners exceeds 200°C, and uses the low gear in other cases.

[0154] Table 1. Correspondence between furnace head temperature, fan working position and air guide plate switch status

[0155]

[0156]

[0157] According to another aspect of the present invention, an air intake control method for a range hood is provided. Figure 4 A schematic flow chart of an air intake control method 400 for a range hood according to an embodiment of the present invention is shown. The air intake control method 400 for a range hood includes steps S410, S420 and S430.

[0158] In step S410, the temperatures of the first burner 210 and the second burner 220 on the cooker are detected to obtain temperature data.

[0159] In step S420 , an image of the cooker is acquired to obtain a cooker image.

[0160] In step S430, a driving mechanism in the air guide plate assembly 130 of the range hood 100 is controlled based on the temperature data and the stove image to drive each air guide plate in the air guide plate assembly 130 to open and close, wherein the air guide plate assembly 130 includes a first air guide plate, a second air guide plate, a third air guide plate and a driving mechanism, and the driving mechanism is used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close the first air inlet, the second air inlet and the third air inlet of the range hood 100, respectively, and the third air inlet is located between the first air inlet and the second air inlet.

[0161] The above has been combined Figure 1-3 The structure, working mode and advantages of the pyrolysis module 110, camera 160, control device 120 and air guide plate assembly 130 of the range hood 100 according to an embodiment of the present invention are described. Those skilled in the art, in combination with the above description, can understand the implementation methods and advantages of each step of the air intake control method 400 for the range hood, which will not be repeated here.

[0162] Exemplarily, controlling the opening and closing of the air deflector in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image includes: performing image recognition on the stove image to determine whether there is a pot above the first burner and / or the second burner.

[0163] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when it is determined based on the temperature data and the stove image that a first condition is met, controlling the driving mechanism to drive the third air deflector to open, wherein the first condition is that the temperature of any one of the first burner 210 and the second burner 220 is greater than a first temperature threshold and there is a pot above the burner.

[0164] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when the third air deflector is open, when it is determined based on the temperature data and the stove image that the first condition is not satisfied for a first preset time, controlling the driving mechanism to drive the third air deflector to close.

[0165] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when it is determined based on the temperature data and the stove image that the second condition is met, controlling the driving mechanism to drive the third air deflector to open, wherein the second condition is that the temperature of any one of the first burner 210 and the second burner 220 is greater than the second temperature threshold and the temperature of the other of the first burner 210 and the second burner 220 is greater than the third temperature threshold and there are pots above the first burner 210 and the second burner 220.

[0166] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when the third air deflector is open, when it is determined based on the temperature data and the stove image that the second condition is not satisfied for a second preset time, controlling the driving mechanism to drive the third air deflector to close.

[0167] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when it is determined based on the temperature data and the stove image that a third condition is met, controlling the driving mechanism to drive the third air deflector to open, wherein the third condition is that the sum of the temperatures of the first burner 210 and the second burner 220 is greater than a fourth temperature threshold and there are pots above the first burner 210 and / or the second burner 220.

[0168] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when the third air deflector is open, when it is determined based on the temperature data and the stove image that the third condition is not satisfied for a third preset time, controlling the driving mechanism to drive the third air deflector to close.

[0169] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when it is determined based on the temperature data and the stove image that the fourth condition is met, controlling the driving mechanism to drive the first air deflector to open, wherein the fourth condition is that the temperature of the first burner 210 is greater than the fifth temperature threshold and there is a pot above the first burner 210; and / or, when it is determined based on the temperature data and the stove image that the fifth condition is met, controlling the driving mechanism to drive the second air deflector to open, wherein the fifth condition is that the temperature of the second burner 220 is greater than the fifth temperature threshold and there is a pot above the second burner 220.

[0170] Exemplarily, controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close includes: when the first air deflector is open, when it is determined based on the temperature data and the stove image that a fourth condition is not satisfied for a fourth preset time, controlling the driving mechanism to drive the first air deflector to close; and / or, when the second air deflector is open, when it is determined based on the temperature data and the stove image that a fifth condition is not satisfied for a fifth preset time, controlling the driving mechanism to drive the second air deflector to close.

[0171] Exemplarily, the fifth temperature threshold is lower than the first temperature threshold.

[0172] Exemplarily, the second temperature threshold is not equal to the third temperature threshold, and the fifth temperature threshold is less than or equal to the smaller one of the second temperature threshold and the third temperature threshold.

[0173] Exemplarily, the second temperature threshold is equal to the third temperature threshold, and the fifth temperature threshold is smaller than the second temperature threshold and the third temperature threshold.

[0174] Exemplarily, the range hood 100 further includes a fan, and the air intake control method 400 for the range hood 100 further includes: controlling the working position of the fan based on the temperature data and the stove image.

[0175] Exemplarily, the fan has multiple working gears corresponding to multiple temperature ranges one by one, and controlling the working gear of the fan based on the temperature data and the stove image includes: when it is determined based on the temperature data that the temperature of any one of the first burner 210 and the second burner 220 is less than a sixth temperature threshold and the temperature of the other of the first burner 210 and the second burner 220 falls into a specific temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the other burner, controlling the fan to operate at the working gear corresponding to the specific temperature range; when it is determined based on the temperature data that the temperature of any one of the first burner 210 and the second burner 220 falls into a first temperature range among the multiple temperature ranges and the temperature of the other of the first burner 210 and the second burner 220 falls into a second temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the first burner 210 and the second burner 220, controlling the fan to operate at the working gear corresponding to the first temperature range, the second temperature range, or any temperature range between the first temperature range and the second temperature range.

[0176] Exemplarily, the first air guide plate has multiple first opening positions corresponding to multiple temperature ranges, and the driving mechanism in the air guide plate assembly 130 of the range hood 100 is controlled based on the temperature data and the stove image to drive each air guide plate in the air guide plate assembly 130 to open and close, including: when it is determined based on the temperature data that the temperature of the first burner 210 falls into a specific temperature range among multiple temperature ranges and it is determined based on the stove image that there is a pot above the first burner 210, the driving mechanism is controlled to drive the first air guide plate to open to the first position corresponding to the specific temperature range.

[0177] Exemplarily, the second air guide plate has multiple second opening positions corresponding to multiple temperature ranges one by one, and the driving mechanism in the air guide plate assembly 130 of the range hood 100 is controlled based on the temperature data and the stove image to drive each air guide plate in the air guide plate assembly 130 to open and close, including: when it is determined based on the temperature data that the temperature of the second burner 220 falls into a specific temperature range among multiple temperature ranges and it is determined based on the stove image that there is a pot above the second burner 220, the driving mechanism is controlled to drive the second air guide plate to open to the second opening position corresponding to the specific temperature range.

[0178] Exemplarily, the air intake control method 400 for the range hood 100 also includes: receiving air deflector indication information input by a user to indicate the opening and closing of the air deflectors in the air deflector assembly 130; and controlling a driving mechanism to drive each air deflector to open and close based on the air deflector indication information.

[0179] According to another aspect of the present invention, a storage medium is provided, on which program instructions are stored, and when the program instructions are executed by a computer or a processor, the corresponding steps of the air intake control method for the range hood 100 of the embodiment of the present invention are executed. The storage medium may include, for example, a memory card of a smart phone, a storage component of a tablet computer, a hard disk of a personal computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disk read-only memory (CD-ROM), a USB memory, or any combination of the above storage media.

[0180] Exemplarily, the program instructions are used to execute the following when running: obtaining temperature data obtained by detecting the temperatures of the first burner 210 and the second burner 220 on the cooker; obtaining a cooker image obtained by collecting the cooker; and controlling the driving mechanism in the air guide plate assembly 130 of the range hood 100 based on the temperature data and the cooker image to drive each air guide plate in the air guide plate assembly 130 to open and close, wherein the air guide plate assembly 130 includes a first air guide plate, a second air guide plate, a third air guide plate and a driving mechanism, and the driving mechanism is used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close the first air inlet, the second air inlet and the third air inlet of the range hood 100, respectively, and the third air inlet is located between the first air inlet and the second air inlet.

[0181] Exemplarily, the steps executed by the program instructions at runtime to control the driving mechanism in the air deflector assembly 130 of the range hood 100 based on temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close include: performing image recognition on the stove image to determine whether there is a pot above the first burner and / or the second burner.

[0182] Exemplarily, the steps executed by the program instructions at runtime to control the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close include: when it is determined based on the temperature data and the stove image that a first condition is met, controlling the driving mechanism to drive the third air deflector to open, wherein the first condition is that the temperature of any one of the first burner 210 and the second burner 220 is greater than a first temperature threshold and there is a pot above the burner.

[0183] Exemplarily, the program instructions used to execute the steps of controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close when the program instructions are executed at runtime include: when the third air deflector is open, when it is determined based on the temperature data and the stove image that the first condition is not satisfied for a first preset time, controlling the driving mechanism to drive the third air deflector to close.

[0184] Exemplarily, the steps executed by the program instructions at runtime to control the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close include: when it is determined based on the temperature data and the stove image that the second condition is met, controlling the driving mechanism to drive the third air deflector to open, wherein the second condition is that the temperature of any one of the first burner 210 and the second burner 220 is greater than the second temperature threshold and the temperature of the other of the first burner 210 and the second burner 220 is greater than the third temperature threshold and there are pots above the first burner 210 and the second burner 220.

[0185] Exemplarily, the program instructions used to execute the steps of controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 to drive each air deflector in the air deflector assembly 130 to open and close based on the temperature data and the stove image when running include: when the third air deflector is open, when it is determined based on the temperature data and the stove image that the second condition is not satisfied for a second preset time, controlling the driving mechanism to drive the third air deflector to close.

[0186] Exemplarily, the steps executed by the program instructions at runtime to control the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close include: when it is determined based on the temperature data and the stove image that a third condition is met, controlling the driving mechanism to drive the third air deflector to open, wherein the third condition is that the sum of the temperatures of the first burner 210 and the second burner 220 is greater than a fourth temperature threshold and there are pots above the first burner 210 and / or the second burner 220.

[0187] Exemplarily, the program instructions used to execute the steps of controlling the driving mechanism in the air deflector assembly 130 of the range hood 100 to drive each air deflector in the air deflector assembly 130 to open and close based on the temperature data and the stove image when running include: when the third air deflector is open, when it is determined based on the temperature data and the stove image that the third condition is not satisfied for a third preset time, controlling the driving mechanism to drive the third air deflector to close.

[0188] Exemplarily, the steps executed by the program instructions at runtime to control the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close include: when the fourth condition is determined to be satisfied based on the temperature data and the stove image, the driving mechanism is controlled to drive the first air deflector to open, wherein the fourth condition is that the temperature of the first burner 210 is greater than the fifth temperature threshold and there is a pot above the first burner 210; and / or, when the fifth condition is determined to be satisfied based on the temperature data and the stove image, the driving mechanism is controlled to drive the second air deflector to open, wherein the fifth condition is that the temperature of the second burner 220 is greater than the fifth temperature threshold and there is a pot above the second burner 220.

[0189] Exemplarily, the steps executed by the program instructions at runtime to control the driving mechanism in the air deflector assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air deflector in the air deflector assembly 130 to open and close include: when the first air deflector is open, when the state in which the fourth condition is not satisfied based on the temperature data and the stove image continues for a fourth preset time, controlling the driving mechanism to drive the first air deflector to close; and / or, when the second air deflector is open, when the state in which the fifth condition is not satisfied based on the temperature data and the stove image continues for a fifth preset time, controlling the driving mechanism to drive the second air deflector to close.

[0190] Exemplarily, the fifth temperature threshold is lower than the first temperature threshold.

[0191] Exemplarily, the second temperature threshold is not equal to the third temperature threshold, and the fifth temperature threshold is less than or equal to the smaller one of the second temperature threshold and the third temperature threshold.

[0192] Exemplarily, the second temperature threshold is equal to the third temperature threshold, and the fifth temperature threshold is smaller than the second temperature threshold and the third temperature threshold.

[0193] Exemplarily, the range hood 100 further includes a fan, and the program instructions are further used to execute when running: controlling the working gear of the fan based on the temperature data and the stove image.

[0194] Exemplarily, the fan has multiple working gears corresponding to multiple temperature ranges one by one, and the steps of controlling the working gear of the fan based on temperature data and the stove image executed by the program instructions during execution include: when it is determined based on the temperature data that the temperature of any one of the first burner 210 and the second burner 220 is less than a sixth temperature threshold and the temperature of the other of the first burner 210 and the second burner 220 falls into a specific temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the other burner, the fan is controlled to operate at the working gear corresponding to the specific temperature range; when it is determined based on the temperature data that the temperature of any one of the first burner 210 and the second burner 220 falls into a first temperature range among the multiple temperature ranges and the temperature of the other of the first burner 210 and the second burner 220 falls into a second temperature range among the multiple temperature ranges, and it is determined based on the stove image that there is a pot above the first burner 210 and the second burner 220, the fan is controlled to operate at the working gear corresponding to the first temperature range, the second temperature range, or any temperature range between the first temperature range and the second temperature range.

[0195] Exemplarily, the first air guide plate has multiple first opening positions corresponding to multiple temperature ranges. The program instructions used to execute the steps of controlling the driving mechanism in the air guide plate assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air guide plate in the air guide plate assembly 130 to open and close include: when it is determined based on the temperature data that the temperature of the first burner 210 falls into a specific temperature range among multiple temperature ranges and it is determined based on the stove image that there is a pot above the first burner 210, controlling the driving mechanism to drive the first air guide plate to open to the first opening position corresponding to the specific temperature range.

[0196] Exemplarily, the second air guide plate has multiple second opening positions corresponding to multiple temperature ranges. The program instructions used to execute the steps of controlling the driving mechanism in the air guide plate assembly 130 of the range hood 100 based on the temperature data and the stove image to drive each air guide plate in the air guide plate assembly 130 to open and close include: when it is determined based on the temperature data that the temperature of the second burner 220 falls into a specific temperature range among multiple temperature ranges and it is determined based on the stove image that there is a pot above the second burner 220, controlling the driving mechanism to drive the second air guide plate to open to the second opening position corresponding to the specific temperature range.

[0197] Exemplarily, the pyroelectric module 110 and / or the camera 160 are located in the middle of the top of the range hood 100 .

[0198] Exemplarily, the program instructions are also used to execute when running: receiving air deflector indication information input by the user to indicate the opening and closing of the air deflectors in the air deflector assembly 130; and controlling the driving mechanism to drive each air deflector to open and close based on the air deflector indication information.

[0199] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0200] Similarly, it should be understood that in order to streamline the present invention and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present invention should not be interpreted as reflecting the following intention: the claimed invention requires more features than the features explicitly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present invention.

[0201] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0202] The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of the functions of some modules in the range hood according to an embodiment of the present invention. The present invention may also be implemented as a device program (e.g., a computer program and a computer program product) for executing part or all of the methods described herein. Such a program for implementing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0203] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc., does not indicate any order. These words may be interpreted as names.

[0204] The above is only a specific embodiment of the present invention or an explanation of a specific embodiment. The protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A range hood (100), characterized in that: It comprises a thermal release module (110), a camera (160), a control device (120) and a wind deflector assembly (130), wherein: The pyrolysis module (110) is used to detect the temperature of a first burner (210) and a second burner (220) on the stove to obtain temperature data; The camera (160) is used to capture an image of the stove to obtain a stove image; The air guide plate assembly (130) comprises a first air guide plate, a second air guide plate, a third air guide plate and a driving mechanism, the driving mechanism being used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close the first air inlet, the second air inlet and the third air inlet of the range hood (100), respectively, the third air inlet being located between the first air inlet and the second air inlet; The control device (120) is connected to the pyroelectric module (110), the camera (160) and the driving mechanism respectively, and the control device (120) is used to receive the temperature data collected by the pyroelectric module (110) and the stove image collected by the camera (160), and control the driving mechanism to drive each air guide plate to open and close based on the temperature data and the stove image; Wherein, the control device (120) is specifically used to: perform image recognition on the stove image to determine whether there is a pot above the first burner (210) and / or the second burner (220); Furthermore, the control device (120) is specifically used for: When it is determined based on the temperature data and the stove image that a first condition is met, controlling the driving mechanism to drive the third air guide plate to open, wherein the first condition is that the temperature of any one of the first stove head (210) and the second stove head (220) is greater than a first temperature threshold and there is a pot above the stove head; or When it is determined based on the temperature data and the stove image that a second condition is satisfied, the driving mechanism is controlled to drive the third air guide plate to open, wherein the second condition is that the temperature of any one of the first burner (210) and the second burner (220) is greater than a second temperature threshold and the temperature of the other of the first burner (210) and the second burner (220) is greater than a third temperature threshold and there is a pot above the first burner (210) and the second burner (220); or, When it is determined based on the temperature data and the stove image that a third condition is met, the driving mechanism is controlled to drive the third air guide plate to open, wherein the third condition is that the sum of the temperatures of the first burner (210) and the second burner (220) is greater than a fourth temperature threshold and there is a pot above the first burner (210) and / or the second burner (220).

2. The range hood (100) according to claim 1, characterized in that: The control device (120) is specifically used for: When the third air guide plate is open, when it is determined based on the temperature data and the stove image that the first condition is not satisfied for a first preset time, the driving mechanism is controlled to drive the third air guide plate to close.

3. The range hood (100) according to claim 1, characterized in that: The control device (120) is specifically used for: When the third air guide plate is open, when it is determined based on the temperature data and the stove image that the second condition is not satisfied for a second preset time, the driving mechanism is controlled to drive the third air guide plate to close.

4. The range hood (100) according to claim 1, characterized in that: The control device (120) is specifically used for: When the third air guide plate is open, when it is determined based on the temperature data and the stove image that the third condition is not satisfied for a third preset time, the driving mechanism is controlled to drive the third air guide plate to close.

5. The range hood (100) according to any one of claims 1 to 4, characterized in that: The control device (120) is specifically used for: When it is determined based on the temperature data and the stove image that a fourth condition is satisfied, controlling the driving mechanism to drive the first air guide plate to open, wherein the fourth condition is that the temperature of the first stove head (210) is greater than a fifth temperature threshold and there is a pot above the first stove head (210); and / or, When it is determined based on the temperature data and the stove image that the fifth condition is met, the driving mechanism is controlled to drive the second air guide plate to open, wherein the fifth condition is that the temperature of the second burner (220) is greater than the fifth temperature threshold and there is a pot above the second burner (220).

6. The range hood (100) according to claim 5, characterized in that: The control device (120) is specifically used for: When the first air guide plate is open, when it is determined based on the temperature data and the stove image that the fourth condition is not satisfied for a fourth preset time, controlling the driving mechanism to drive the first air guide plate to close; and / or, When the second air guide plate is open, when it is determined based on the temperature data and the stove image that the fifth condition is not satisfied for a fifth preset time, the driving mechanism is controlled to drive the second air guide plate to close.

7. The range hood (100) according to claim 5, characterized in that: The fifth temperature threshold is lower than the first temperature threshold.

8. The range hood (100) according to claim 5, characterized in that: The second temperature threshold is not equal to the third temperature threshold, and the fifth temperature threshold is less than or equal to the smaller one of the second temperature threshold and the third temperature threshold.

9. The range hood (100) according to claim 5, characterized in that: The second temperature threshold is equal to the third temperature threshold, and the fifth temperature threshold is smaller than the second temperature threshold and the third temperature threshold.

10. The range hood (100) according to any one of claims 1 to 4, characterized in that: The range hood (100) further comprises a fan, and the control device (120) is further used for: The working gear of the fan is controlled based on the temperature data and the stove image.

11. The range hood (100) according to claim 10, characterized in that: The fan has a plurality of working gears corresponding to a plurality of temperature ranges, and the control device (120) is specifically used for: When it is determined based on the temperature data that the temperature of any one of the first burner (210) and the second burner (220) is less than a sixth temperature threshold and the temperature of the other of the first burner (210) and the second burner (220) falls within a specific temperature range among the multiple temperature ranges, and it is determined based on the stove image that a pot is present above the other burner, controlling the fan to operate at a working gear corresponding to the specific temperature range; When it is determined based on the temperature data that the temperature of any one of the first burner (210) and the second burner (220) falls within a first temperature range among the multiple temperature ranges and the temperature of the other of the first burner (210) and the second burner (220) falls within a second temperature range among the multiple temperature ranges, and when it is determined based on the stove image that there are pots above the first burner (210) and the second burner (220), the fan is controlled to operate at an operating gear corresponding to the first temperature range or the second temperature range or any temperature range between the first temperature range and the second temperature range.

12. The range hood (100) according to any one of claims 1 to 4, characterized in that: The first air guide plate has a plurality of first opening positions corresponding one-to-one to a plurality of temperature ranges, and the control device (120) is specifically used for: When it is determined based on the temperature data that the temperature of the first stove head (210) falls within a specific temperature range among the multiple temperature ranges and when it is determined based on the stove image that there is a pot above the first stove head (210), the driving mechanism is controlled to drive the first air guide plate to open to a first opening position corresponding to the specific temperature range.

13. The range hood (100) according to any one of claims 1 to 4, characterized in that: The second air guide plate has a plurality of second opening positions corresponding one-to-one to a plurality of temperature ranges, and the control device (120) is specifically used for: When it is determined based on the temperature data that the temperature of the second burner (220) falls within a specific temperature range among the multiple temperature ranges and when it is determined based on the stove image that there is a pot above the second burner (220), the driving mechanism is controlled to drive the second air guide plate to open to a second opening position corresponding to the specific temperature range.

14. The range hood (100) according to any one of claims 1 to 4, characterized in that: The pyrolysis module (110) and / or the camera (160) are located in the middle of the top of the range hood (100).

15. The range hood (100) according to any one of claims 1 to 4, characterized in that: The range hood (100) further comprises an input component, which is used to receive air deflector indication information input by a user and is used to instruct the opening and closing of the air deflector in the air deflector assembly (130). The control device (120) is connected to the input component, and the control device (120) is also used to control the drive mechanism to drive each air deflector to open and close based on the air deflector indication information.

16. The range hood (100) according to any one of claims 1 to 4, characterized in that: The range hood (100) further comprises a switch control board (140) and a power board (150); the control device (120) comprises a first chip (122) and a second chip (124); the first chip (122) is integrated on the switch control board (140); and the second chip (124) is integrated on the power board (150). The first chip (122) is connected to the thermal release module (110) and is used to receive the temperature data and transmit the temperature data to the second chip (124); The second chip (124) is connected to the camera (160) and the driving mechanism respectively, and is used to receive the temperature data and the stove image, and control the driving mechanism to drive each air guide plate to open and close based on the temperature data and the stove image.

17. The range hood (100) according to any one of claims 1 to 4, characterized in that: The driving mechanism includes a lifting mechanism connected to the third air guide plate, The third air guide plate has a raised closed position and a lowered open position when driven by the lifting mechanism. When the third air guide plate is in the raised closed position, the third air inlet is closed; when the third air guide plate is in the lowered open position, the third air inlet is opened.

18. The range hood (100) according to any one of claims 1 to 4, characterized in that: The driving mechanism includes a first flipping mechanism connected to the first air guide plate and a second flipping mechanism connected to the second air guide plate. The first air guide plate has a flip open position and a flip closed position under the drive of the first flip mechanism. When the first air guide plate is in the flip open position, the first air inlet is opened. When the first air guide plate is in the flip closed position, the first air inlet is closed. The second air guide plate has a flip open position and a flip closed position when driven by the second flip mechanism. When the second air guide plate is in the flip open position, the second air inlet is opened, and when the second air guide plate is in the flip closed position, the second air inlet is closed.

19. An air intake control method for a range hood (100), characterized in that: include: Detecting the temperatures of a first burner (210) and a second burner (220) on the stove to obtain temperature data; Acquiring an image of the cooker to obtain a cooker image; Based on the temperature data and the stove image, a driving mechanism in the air guide plate assembly (130) of the range hood (100) is controlled to drive each air guide plate in the air guide plate assembly (130) to open and close, wherein the air guide plate assembly (130) comprises a first air guide plate, a second air guide plate, a third air guide plate and the driving mechanism, and the driving mechanism is used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close the first air inlet, the second air inlet and the third air inlet of the range hood (100), respectively, and the third air inlet is located between the first air inlet and the second air inlet; Wherein, controlling the driving mechanism in the air deflector assembly (130) of the range hood (100) based on the temperature data and the stove image to drive each air deflector in the air deflector assembly (130) to open and close comprises: performing image recognition on the stove image to determine whether there is a pot above the first burner (210) and / or the second burner (220); Furthermore, the method of controlling the driving mechanism in the air deflector assembly (130) of the range hood (100) to drive each air deflector in the air deflector assembly (130) to open and close based on the temperature data and the stove image comprises: When it is determined based on the temperature data and the stove image that a first condition is met, controlling the driving mechanism to drive the third air guide plate to open, wherein the first condition is that the temperature of any one of the first stove head (210) and the second stove head (220) is greater than a first temperature threshold and there is a pot above the stove head; or When it is determined based on the temperature data and the stove image that a second condition is satisfied, the driving mechanism is controlled to drive the third air guide plate to open, wherein the second condition is that the temperature of any one of the first burner (210) and the second burner (220) is greater than a second temperature threshold and the temperature of the other of the first burner (210) and the second burner (220) is greater than a third temperature threshold and there is a pot above the first burner (210) and the second burner (220); or, When it is determined based on the temperature data and the stove image that a third condition is met, the driving mechanism is controlled to drive the third air guide plate to open, wherein the third condition is that the sum of the temperatures of the first burner (210) and the second burner (220) is greater than a fourth temperature threshold and there is a pot above the first burner (210) and / or the second burner (220).

20. A storage medium having program instructions stored thereon, wherein the program instructions are used to execute: Acquiring temperature data obtained by detecting the temperatures of a first burner (210) and a second burner (220) on a stove; Acquire a stove image acquired with respect to the stove; Based on the temperature data and the stove image, a driving mechanism in the air guide plate assembly (130) of the range hood (100) is controlled to drive each air guide plate in the air guide plate assembly (130) to open and close, wherein: The air guide plate assembly (130) comprises a first air guide plate, a second air guide plate, a third air guide plate and the driving mechanism, the driving mechanism being used to drive the first air guide plate, the second air guide plate and the third air guide plate to independently open and close the first air inlet, the second air inlet and the third air inlet of the range hood (100), respectively, the third air inlet being located between the first air inlet and the second air inlet; The steps for executing, when the program instructions are run, to control a driving mechanism in an air deflector assembly (130) of a range hood (100) to drive each air deflector in the air deflector assembly (130) to open and close based on the temperature data and the stove image include: performing image recognition on the stove image to determine whether there is a pot above the first burner (210) and / or the second burner (220); Furthermore, the program instructions are used to execute the steps of controlling the driving mechanism in the air deflector assembly (130) of the range hood (100) to drive each air deflector in the air deflector assembly (130) to open and close based on the temperature data and the stove image when the program instructions are run, and the steps include: When it is determined based on the temperature data and the stove image that a first condition is met, controlling the driving mechanism to drive the third air guide plate to open, wherein the first condition is that the temperature of any one of the first stove head (210) and the second stove head (220) is greater than a first temperature threshold and there is a pot above the stove head; or When it is determined based on the temperature data and the stove image that a second condition is satisfied, the driving mechanism is controlled to drive the third air guide plate to open, wherein the second condition is that the temperature of any one of the first burner (210) and the second burner (220) is greater than a second temperature threshold and the temperature of the other of the first burner (210) and the second burner (220) is greater than a third temperature threshold and there is a pot above the first burner (210) and the second burner (220); or, When it is determined based on the temperature data and the stove image that a third condition is met, the driving mechanism is controlled to drive the third air guide plate to open, wherein the third condition is that the sum of the temperatures of the first burner (210) and the second burner (220) is greater than a fourth temperature threshold and there is a pot above the first burner (210) and / or the second burner (220).

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