CN114526504A

CN114526504A - Range hood, control method thereof and computer-readable storage medium

Info

Publication number: CN114526504A
Application number: CN202011326282.6A
Authority: CN
Inventors: 刘智
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2022-05-24

Abstract

The invention discloses a range hood, a control method thereof and a computer readable storage medium, wherein the range hood comprises: the air purification device is provided with a purification air channel, a filter piece and a purification fan which are arranged in the purification air channel; a soot sensor; the controller is electrically connected with the oil smoke sensor, the cigarette machine main body and the air purification device respectively; the controller is used for controlling the starting and stopping states of the cigarette machine main body and the air purification device according to the oil smoke concentration detected by the oil smoke sensor, and the air outlet volume of the air purification device. According to the technical scheme, the smoke machine main body and the air purification device are controlled to be started or the air outlet volume of the air purification device is adjusted according to the smoke concentration, and therefore the situation that a user forgets to start the smoke machine main body and/or the air purification device, the smoke generated by cooking diffuses in a kitchen space, and smoke pollution and health damage to a human body are caused is avoided.

Description

Range hood, control method thereof and computer-readable storage medium

Technical Field

The invention relates to the technical field of household appliances, in particular to a range hood, a control method thereof and a computer readable storage medium.

Background

During the cooking process, oil smoke is generated, and the oil smoke not only pollutes the air environment, but also damages the health of human bodies. The traditional range hood can rapidly discharge oil smoke to the outside, and reduces the pollution to the air environment in a kitchen and the damage to the health of human bodies. However, during cooking, there is always oil smoke escaping from the conventional range hood and dissipating into the kitchen space. The escaping oil smoke can still cause oil smoke pollution and harm to the health of human bodies.

Disclosure of Invention

In order to further reduce the pollution of the oil smoke to the air environment in the kitchen and the damage to the health of the human body, the range hood is additionally provided with an air purification device on the basis of the main body of the range hood, so that the oil smoke dissipated into the space of the kitchen is sucked and purified through the air purification device. However, the cigarette machine body and the air purification device usually need to be opened manually, and thus once a user forgets to open the cigarette machine body and the air purification device, the cooking fume generated by cooking can be diffused in a kitchen space, and the pollution of the cooking fume and the health damage to human bodies are caused.

The invention mainly aims to provide a range hood, which aims to realize the automatic opening of a range hood main body and/or an air purification device and improve the intellectualization of the range hood.

In order to achieve the above object, the range hood provided by the present invention comprises:

a cigarette machine main body; and

the air purification device is provided with a purification air channel, and a filter element and a purification fan which are arranged in the purification air channel;

the outer surface of the cigarette machine main body is provided with an air inlet communicated with the purification air channel and an air outlet communicated with the purification air channel;

the oil smoke sensor is used for detecting the oil smoke concentration of the environment where the range hood is located;

the controller is electrically connected with the oil smoke sensor, the cigarette machine main body and the air purification device respectively;

the controller is used for controlling the starting and stopping states of the cigarette machine main body and the air purification device according to the oil smoke concentration detected by the oil smoke sensor, and the air outlet volume of the air purification device.

On one hand, through the cooperative work of the air purification device and the smoke machine main body, most of the oil smoke can be discharged outdoors, and a small part of the oil smoke can be circularly purified and removed, so that the pollution of the oil smoke to the air environment and the damage to the health of a human body are further reduced; on the other hand, the cigarette machine main body and/or the air purification device are controlled to be automatically started according to the work information of the furnace end, and therefore the situation that the smoke produced by cooking diffuses in a kitchen space and causes smoke pollution and health damage to a human body due to the fact that a user forgets to start the cigarette machine main body and/or the air purification device is avoided.

Optionally, if the smoke concentration is greater than or equal to a first preset concentration and less than a second preset concentration, the controller controls the air purification device to start and operate based on the first preset air outlet amount when the cigarette maker main body is in a shutdown state and the air purification device is in the shutdown state.

Therefore, when the oil smoke in the kitchen is less, the air purification device is controlled to operate at a smaller air volume, so that the energy consumption of the range hood is reduced while the oil smoke is effectively purified.

Optionally, if the smoke concentration is greater than or equal to a second preset concentration and less than a third preset concentration, when the cigarette maker main body is in a shutdown state, the controller controls the air purification device based on a second preset air outlet volume, wherein the second preset air outlet volume is greater than the first preset air outlet volume.

Therefore, when the oil smoke in the kitchen increases, the air purification device is controlled to operate at a larger air volume, so that the energy consumption of the range hood is reduced while the oil smoke is effectively purified.

Optionally, if the oil smoke concentration is greater than or equal to a third preset concentration, the controller controls the cigarette machine main body and the air purification device to start operation.

So, through the cigarette machine main part and a large amount of oil smoke in the air purification device purification kitchen avoids the user to forget to open cigarette machine main part and/or air purification device, leads to the produced oil smoke of culinary art to spread in kitchen space, and causes the oil smoke pollution and takes place to the condition of the health harm of human body.

Optionally, the soot sensor comprises a particulate matter sensor and/or an odor sensor.

The oil smoke usually includes particulate matter and volatile organic compounds (smell), and the oil smoke concentration can be obtained through a particulate matter sensor and also can be obtained through a smell sensor.

Optionally, the soot sensor comprises a particulate matter sensor and an odor sensor, the soot concentration comprises a particulate matter concentration and an odor concentration; the first preset concentration comprises a first preset particulate matter concentration and a first preset odor concentration; the second preset concentration comprises a second preset particulate matter concentration and a second preset odor concentration; the third preset concentration comprises a third preset particulate matter concentration and a third preset odor concentration;

if the concentration of the particulate matters is greater than or equal to a first preset concentration of the particulate matters and less than a second preset concentration of the particulate matters, or the concentration of the odor is greater than or equal to a first preset concentration of the odor and less than a second preset concentration of the odor, the controller controls the air purification device to start and operate based on a first preset air outlet volume when the cigarette machine main body is in a shutdown state and the air purification device is in the shutdown state; or,

if the concentration of the particulate matters is greater than or equal to a second preset concentration of the particulate matters and less than a third preset concentration of the particulate matters, or the concentration of the odor is greater than or equal to a second preset concentration of the odor and less than a third preset concentration of the odor, when the cigarette machine main body is in a shutdown state, the controller controls the air purification device based on a second preset air outlet volume.

Thus, the oil smoke main body and/or the air purification device can be started or the air volume of the air purification device can be adjusted when any one of the particulate matter concentration or the odor concentration meets the preset condition.

Optionally, the cigarette machine main body comprises a decoration cover and a smoke collecting cover arranged below the decoration cover;

the oil smoke sensor is arranged on the front surface of the smoke collecting cover; or,

the oil smoke sensor is arranged on the side surface of the smoke collecting cover; or,

the oil smoke sensor is arranged at the upper end of the decorative cover.

The oil smoke sensor is arranged at the side surface of the air inlet, the smoke collecting cover or the upper end of the decorative cover, so that the oil smoke sensor can accurately obtain the oil smoke concentration corresponding to the air inlet.

Optionally, the air inlet is arranged on the side surface of the decorative cover; or,

the air inlet is arranged at the upper part of the front side of the decorative cover; or,

the air inlet is formed in the top of the cigarette machine main body.

Thus, the air inlet is arranged at the upper part of the front surface of the decorative cover or the top of the cigarette machine main body, so as to be beneficial to sucking the oil smoke accumulated in the upper space of the kitchen due to the thermal plume effect.

Optionally, the air outlet is arranged on the front surface of the decorative cover; or,

the air outlet is arranged on the side surface of the decorative cover; or,

the air outlet is formed in the top of the cigarette machine main body; or,

the air outlet is arranged at the bottom of the cigarette machine main body.

Therefore, the air outlet is formed in the side face of the decoration cover or the bottom of the cigarette machine main body, and purified air can be discharged.

The invention also provides a control method of the range hood, which is applied to the range hood and comprises the following steps:

acquiring the oil smoke concentration detected by the oil smoke sensor; and

and controlling the starting and stopping states of the cigarette machine main body and the air purification device and the air outlet volume of the air purification device according to the oil smoke concentration detected by the oil smoke sensor.

On one hand, through the cooperative work of the air purification device and the smoke machine main body, most of the oil smoke can be discharged outdoors, and a small part of the oil smoke can be circularly purified and removed, so that the pollution of the oil smoke to the air environment and the damage to the health of a human body are further reduced; on the other hand, the cigarette machine main body and the air purification device are controlled to open or adjust the air outlet volume of the air purification device according to the oil smoke concentration, so that the situation that the user forgets to open the cigarette machine main body and/or the air purification device, the oil smoke generated by cooking diffuses in a kitchen space, and the oil smoke pollution and the health damage to a human body are caused is avoided.

Optionally, the step of controlling the starting and stopping states of the cigarette machine main body and the air purification device according to the smoke concentration detected by the smoke sensor, and the air outlet volume of the air purification device includes:

if the oil smoke concentration is greater than or equal to a first preset concentration and less than a second preset concentration, the starting operation of the air purification device is controlled based on a first preset air outlet volume when the cigarette machine main body is in a shutdown state and the air purification device is in the shutdown state.

Optionally, the step of controlling the starting and stopping states of the cigarette machine main body and the air purification device according to the smoke concentration detected by the smoke sensor, and the air outlet volume of the air purification device further includes:

if the oil smoke concentration is greater than or equal to a second preset concentration and less than a third preset concentration, controlling the air purification device based on a second preset air outlet volume when the cigarette machine main body is in a shutdown state, wherein the second preset air outlet volume is greater than the first preset air outlet volume.

and if the oil smoke concentration is greater than or equal to a third preset concentration, controlling the starting operation of the smoke machine main body and the air purification device.

So, through the cigarette machine main part and a large amount of oil smoke in the air purification device purification kitchen avoids the user to forget to open cigarette machine main part and/or air purification device, leads to the produced oil smoke of culinary art to spread in kitchen space, and causes the condition emergence of oil smoke pollution and health harm to the human body.

according to the oil smoke concentration control that oil smoke sensor detected cigarette machine main part and air purification device opens and stops the state, and air purification device's the air-out amount of wind's step includes:

if the concentration of the particulate matters is greater than or equal to a first preset concentration of the particulate matters and less than a second preset concentration of the particulate matters, or the concentration of the odor is greater than or equal to a first preset concentration of the odor and less than a second preset concentration of the odor, controlling the air purification device to start and operate based on a first preset air outlet volume when the cigarette machine main body is in a shutdown state and the air purification device is in the shutdown state; or,

and if the concentration of the particulate matters is greater than or equal to a second preset concentration of the particulate matters and less than a third preset concentration of the particulate matters, or the concentration of the odor is greater than or equal to a second preset concentration of the odor and less than a third preset concentration of the odor, controlling the air purification device based on a second preset air outlet volume when the cigarette machine main body is in a shutdown state.

Thus, the oil smoke main body and/or the air purification device can be started or the air volume of the air purification device can be adjusted when any one of the concentration of the particulate matters or the concentration of the odor meets the preset condition.

The invention further provides a computer readable storage medium, wherein a control program of the range hood is stored on the computer readable storage medium, and the control program of the range hood realizes the steps of the control method of the range hood when being executed by the processor.

On one hand, the range hood provided by the technical scheme of the invention is additionally provided with the air purification device on the basis of the range hood main body, so that when the air purification device and the range hood main body work cooperatively, most of oil smoke generated in the cooking process can be discharged to the outside through the oil smoke suction air channel, a small part of oil smoke can escape to other spaces in a kitchen, and the small part of oil smoke can be further removed through the purification air channel, thereby further reducing the pollution of the oil smoke to the air environment and the damage to the health of a human body; on the other hand, the cigarette machine main body and the air purification device are controlled to open or adjust the air outlet volume of the air purification device according to the oil smoke concentration, so that the situation that the user forgets to open the cigarette machine main body and/or the air purification device, the oil smoke generated by cooking diffuses in a kitchen space, and the oil smoke pollution and the health damage to a human body are caused is avoided.

Drawings

Fig. 1 is a schematic structural view of a range hood according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the range hood of FIG. 1 with the decorative cover and the filter member removed;

FIG. 3 is an exploded view of the range hood of FIG. 1;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a schematic view of a partial cross-sectional structure of the range hood of FIG. 1 from another perspective;

FIG. 6 is an enlarged schematic view at B of FIG. 5;

FIG. 7 is a schematic cross-sectional view of a portion of the range hood of FIG. 1 from another perspective;

FIG. 8 is an enlarged schematic view at C of FIG. 7;

FIG. 9 is a schematic view of the air circulation path of the range hood of FIG. 1;

fig. 10 is a flowchart illustrating a control method of a range hood according to a first embodiment of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the expression "and/or" and/or "is used throughout, the meaning includes three parallel schemes, for example," A and/or B ", including scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a range hood.

Referring to fig. 1 to 3, in an embodiment of the present invention, the range hood includes:

a cigarette machine main body 1; and

the air purification device 2 is provided with a purification air channel, and a filter piece 22 and a purification fan 23 which are arranged in the purification air channel;

the outer surface of the cigarette machine main body 1 is provided with an air inlet 111 communicated with the purification air channel and an air outlet 112 communicated with the purification air channel;

the oil smoke sensor 4 is used for detecting the oil smoke concentration of the environment where the range hood is located;

the controller 3 is respectively and electrically connected with the oil smoke sensor 4, the cigarette machine main body 1 and the air purification device 2;

the controller 3 is used for controlling the starting and stopping states of the cigarette machine main body 1 and the air purification device 2 and the air outlet volume of the air purification device 2 according to the oil smoke concentration detected by the oil smoke sensor 4.

In this embodiment, the range hood main body 1 is provided with an oil smoke suction duct, the purification duct of the air purification device 2 is not communicated with the oil smoke suction duct, and the purification duct is provided with a purification fan 23. The smoke inlet of the oil smoke suction duct is communicated with the indoor and is usually suspended above a kitchen range 5 so as to suck oil smoke into the oil smoke suction duct; the smoke outlet of the oil smoke suction duct is communicated with the outside so as to discharge oil smoke to the outside; of course, the oil fume suction duct is internally provided with an oil fume fan for enabling the airflow to flow from the fume inlet to the fume outlet. It can be understood that the range hood main body 1 has the functions of the traditional range hood.

The cleaning fan 23 of the air cleaning device 2 is used to make the air flow from the air inlet 111 to the air outlet 112 through the cleaning air duct. The air inlet 111 with the air outlet 112 all communicates indoorly, the air inlet 111 is used for inhaling the indoor air in kitchen, and the filter piece 22 of air purification device 2 is used for filtering the air of inhaling and purifying, the air outlet 112 is used for discharging the air after filtering the purification back to in kitchen indoorly. When the air purification device 2 and the cigarette machine main body 1 work cooperatively, most of oil smoke generated in the cooking process is discharged to the outside through the oil smoke suction air duct, a small part of oil smoke can escape to other spaces in a kitchen, and the small part of oil smoke can be further removed through the purification air duct of the air purification device 2, so that the pollution of the oil smoke to the air environment and the damage to the health of a human body are further reduced.

In this embodiment, if the range hood is in a shutdown state, that is, the range hood main body 1 and the air purification apparatus 2 are both in the shutdown state, the oil smoke sensor 4 may detect the oil smoke concentration of the environment where the range hood is located at regular time or in real time, and preferably, the oil smoke sensor 4 detects the oil smoke concentration of the environment where the range hood is located at regular time, for example, detects the oil smoke concentration once every 1 minute. The controller 3 acquires the oil smoke concentration detected by the oil smoke sensor 4, and controls the starting and stopping states of the cigarette machine main body 1 and the air purification device 2 and the air outlet volume of the air purification device 2 according to the oil smoke concentration. It can be understood, the size of oil smoke concentration can represent the air quality in the kitchen space good or bad, so the size of accessible oil smoke concentration judges the demand of opening of cigarette machine main part 1 and/or air purification device 2, and the regulation demand of air-out amount of wind of air purification device 2, thereby when having the demand of opening, control cigarette machine main part 1 and/or air purification device 2 are automatic to be opened, or adjust air-out amount of wind of air purification device 2, promote range hood's intellectuality, and then can avoid opening cigarette machine main part 1 and/or air purification device 2 because of the user forgets, and the phenomenon that leads to the produced oil smoke of culinary art to spread appears in the kitchen space.

Further, if the oil smoke concentration is greater than or equal to a first preset concentration and less than a second preset concentration, the controller controls the air purification device to start and operate based on a first preset air outlet quantity when the cigarette machine main body is in a shutdown state and the air purification device is in the shutdown state.

In this embodiment, when the controller 3 obtains the oil smoke concentration detected by the oil smoke sensor 4, the controller 3 determines whether the oil smoke concentration is greater than or equal to a first preset concentration, and if so, the controller 3 determines whether the oil smoke concentration is less than a second preset concentration. When the oil smoke concentration is greater than or equal to the first preset concentration and less than the second preset concentration, the oil smoke which slightly affects users and the environment in a kitchen can be judged to exist, or a small amount of oil smoke is generated in the cooking process, so that the controller 3 controls the air purification device 2 to start and operate based on the first preset air outlet volume, so as to utilize the air purification device 2 to carry out internal circulation purification on the oil smoke, it can be understood that the energy consumption required by starting the air purification device 2 is lower than that required by starting the cigarette machine main body 1, of course, the air volume of the purification fan of the air purification device 2 is less than that of the oil smoke fan of the cigarette machine main body 1, and the energy consumption required by starting only the air purification device 2 is the lowest under the condition that only the air purification device 2 is started to meet the requirement of improving the air quality. Wherein, the first preset outlet air volume is smaller than half of the maximum outlet air volume of the air purification device 2.

In this embodiment, when the oil smoke concentration is greater than or equal to the second preset concentration, the controller 3 determines whether the oil smoke concentration is less than the third preset concentration, and if the oil smoke concentration is less than the third preset concentration, it can be determined that more oil smoke is generated in the cooking process, so that the controller 3 controls the air purifying device 2 based on the second preset air outlet amount to increase the air outlet amount of the air purifying device 2, purify the oil smoke in the kitchen through the air purifying device 2 with large air amount, and reduce the energy consumption of the range hood while improving the oil smoke purification efficiency of the range hood. Specifically, if the cigarette machine main part is in the off-state just air purification device is in the off-state, then directly start air purification device 2 based on the second preset air-out volume, if the cigarette machine main part is in the off-state and air purification device is in the running state, then adjust air-out volume of air purification device 2 to the second preset air-out volume, wherein the second preset air-out volume is greater than the first preset air-out volume, for example the second preset air-out volume is the maximum air-out volume of air purification device 2.

It can be understood that, if the oil smoke concentration is greater than the third preset concentration, then it can be determined that a maximum amount of oil smoke is generated in the cooking process, at this time, if only the smoke ventilator main body 1 is opened to discharge the oil smoke outside, there will still be a lot of oil smoke escaping upwards from the edge of the range hood, if only the air purification device 2 is opened, then the oil smoke in the kitchen can not be effectively purified, so that the controller 3 controls the smoke ventilator main body 1 and the air purification device 2 to be both opened, so as to discharge a large amount of oil smoke outdoors by using the oil smoke suction duct of the smoke ventilator main body 1 on one side, and the oil smoke escaping upwards is sucked and purified by using the purification duct of the air purification device 2 on the other side, thereby rapidly removing the indoor oil smoke.

During cooking, edible oil and food undergo a series of chemical reactions such as oxidation, cracking and polymerization at high temperature, a large amount of organic smoke is evaporated, and partial decomposition products are emitted into air in the form of oil mist to form oil smoke. The oil fume includes both edible oil and its heating decomposition or cracking product and also includes the physical and chemical reaction product of protein, polymer compound and various seasoning matters in food, and is one kind of matter containing gas, liquid and solid. Generally, the Particulate Matter Emission (PME) composed of liquid and solid in the oil smoke emission is defined as PME, and the Volatile Organic Compounds emission (VOCs) is defined as VOCs, and the oil smoke is composed of the above two substances. Based on this, the soot concentration can be characterized by the particulate matter concentration and/or the odor concentration.

In one embodiment, the soot sensor 4 includes only a particulate matter sensor to determine the quality of air in the kitchen by detecting the concentration of particulate matter in the air. In this embodiment, the starting and stopping states of the cigarette machine main body 1 and the air purification device 2 and the air outlet volume of the air purification device are controlled according to the smoke concentrationThe determination control is performed according to the particulate matter concentration, and accordingly, the first to third preset concentrations in the foregoing embodiment correspond to first to third preset particulate matter concentrations, respectively. For example: when the lampblack sensor 4 only comprises a particulate matter sensor, the first preset particulate matter concentration is 75.0 mu g/m³The second preset particle concentration is 150 mu g/m³The third preset particulate matter concentration is 300 mu g/m³That is, if the user forgets to turn on the cigarette maker body 1 and the air cleaning device 2 during cooking and the cigarette maker body 1 and the air cleaning device 2 are both in a shutdown state, when the particle sensor detects that the concentration of the particles is not less than 75.0 μ g/m³And less than 150. mu.g/m³The controller 3 controls the air purification device 2 to be opened only based on the first preset air outlet volume; when the particle sensor detects that the measured particle concentration is not less than 150.0 mu g/m³And less than 300. mu.g/m³The controller 3 controls the air purification device 1 to be opened only based on a second preset air outlet volume; when the particle sensor detects that the measured particle concentration is not less than 300 mu g/m³And the controller 3 controls the cigarette machine main body 1 and the air purification device 2 to be opened.

However, the design is not limited thereto, and in other embodiments, the soot sensor 4 may also only include an odor sensor to determine the air quality in the kitchen by detecting the concentration of the odor in the air. It can be understood that in the present embodiment, in the process of controlling the start-stop state of the cigarette maker main body 1 and the air cleaning device 2 according to the smoke concentration, the judgment and control are performed according to the odor concentration, and accordingly, the first to third preset concentrations in the foregoing embodiment correspond to the first to third preset odor concentrations, respectively. For example: when the lampblack sensor 4 only comprises an odor sensor, the first preset odor concentration is 0.6mg/m³The second preset odor concentration is 1.0mg/m³The third preset odor concentration is 3.0mg/m³That is, if the user forgets to turn on the cigarette maker body 1 and the air cleaning device 2 during cooking, both the cigarette maker body 1 and the air cleaning device 2 are in a stop stateWhen in a state where the odor sensor detects the concentration of the detected odor to be not less than 0.6mg/m³And less than 1.0mg/m³The controller 3 controls the air purification device 2 to be opened only based on the first preset air outlet volume; when the odor sensor detects the detected odor concentration not less than 1.0mg/m³And less than 3.0mg/m³The controller 3 controls the air purification device 1 to be opened only based on a second preset air outlet volume; when the odor sensor detects the detected odor concentration not less than 3.0mg/m³And the controller 3 controls the cigarette machine main body 1 and the air purification device 2 to be opened.

In yet other embodiments, the soot sensor 4 may also include a particle sensor and an odor sensor to detect the concentration of particles and odor in the air to determine the quality of the air in the kitchen. It can be understood that in the present embodiment, in the process of controlling the start-stop states of the cigarette making machine main body 1 and the air purification device 2 according to the smoke concentration, the judgment control is performed according to the particulate matter concentration and the odor concentration, and accordingly, the first preset concentration in the foregoing embodiment includes a first preset particulate matter concentration and a first preset odor concentration, the second preset concentration includes a second preset particulate matter concentration and a second preset odor concentration, and the third preset concentration includes a third preset particulate matter concentration and a third preset odor concentration; it is understood that the first to third predetermined concentrations of particulate matter are all within the predetermined particulate matter concentration, and the first to third predetermined concentrations of odor are all within the predetermined odor concentration. It should be noted that, in the present embodiment, in order to make the control response of the controller 3 quicker, as long as any one of the comparison result between the particulate matter concentration and the preset particulate matter concentration and the comparison result between the odor concentration and the preset odor concentration is determined to satisfy the preset condition, the controller 3 controls the cigarette maker main body 1 and/or the air cleaning device 2 corresponding to the preset condition to be turned on.

For example, if the concentration of particulate matter is greater than or equal to a first preset particulate matter concentration and less than a second preset particulate matter concentration, or the concentration of odor is greater than or equal to a first preset odor concentration and less than a second preset odor concentration, the controller controls the air purification device to start operation based on a first preset air outlet volume when the cigarette maker main body is in a shutdown state and the air purification device is in the shutdown state; or if the concentration of the particulate matters is greater than or equal to a second preset concentration of the particulate matters and less than a third preset concentration of the particulate matters, or the concentration of the odor is greater than or equal to a second preset concentration of the odor and less than a third preset concentration of the odor, when the cigarette machine main body is in a shutdown state, the controller controls the air purification device based on a second preset air outlet volume; or, if the concentration of the particulate matters is greater than or equal to a third preset concentration of the particulate matters, or the concentration of the odor is greater than or equal to a third preset concentration of the odor, the controller 3 controls the cigarette maker main body 1 and the air cleaning device 2 to start operation.

Optionally, the range hood main body 1 includes a decoration cover 11 and a smoke collecting cover 12 disposed below the decoration cover 11, and a smoke suction duct is disposed in the decoration cover 11 and is not communicated with the purification duct. The air purifying device 2 is arranged in the decorative cover 11, and in the embodiment, the air purifying device 2 is hidden in the decorative cover 11 to share the appearance piece, thereby simplifying the structure of the range hood.

However, the design is not limited thereto, and in other embodiments, referring to fig. 2, the air purifying device 2 may also be disposed outside the cigarette maker body 1, for example, but not limited to, being fixed on the front surface of the decoration cover 11. In still other embodiments, the air purifying device 2 may also be installed without being attached to the cigarette maker main body 1, that is, the air purifying device 2 may be movable relative to the cigarette maker main body 1, at this time, the air purifying device 2 may be connected to the cigarette maker main body 1 through a power supply line to be powered by the cigarette maker main body 1, or the air purifying device 2 may be provided with a plug-in device, and may be powered by an independent plug-in manner.

In one embodiment, the smoke sensor 4 is provided on the cigarette machine body 1. Since the controller 3 is usually arranged on the cigarette machine body 1, the smoke sensor 4 is also arranged on the cigarette machine body 1, and the electric connection between the smoke sensor and the controller 3 can be realized more conveniently. In addition, the cigarette maker body 1 is generally larger than the air cleaning device 2, with more and more suitable mounting positions for the smoke sensor 4.

Alternatively, referring to fig. 1, the smoke sensor 4 is provided on the front surface of the smoke collecting hood 12 of the range hood main body 1 such that the smoke sensor 4 is closest to the front of the range hood. In the cooking process, a user usually stands in front of the range hood, and the space in front of the range hood can be defined as a user breathing zone. Locate the front of collection petticoat pipe 12 with oil smoke sensor 4, be favorable to oil smoke sensor 4 to acquire the oil smoke concentration that leaks out from user's breathing zone to the realization is according to the oil smoke concentration control cigarette machine main part 1 of user's breathing zone and the state of opening of air purification device 2, and improves the air quality of user's breathing zone in time. In addition, the control panel of the range hood is usually arranged on the front surface of the smoke collecting hood 12, and the smoke sensor 4 is integrated on the control panel, so that the assembly process can be reduced.

However, the design is not limited to this, in other embodiments, the smoke sensor 4 may also be disposed on the side surface of the smoke collecting hood 12, so as to be beneficial to obtaining the concentration of the smoke leaked from the side of the smoke machine main body 1; particularly, when a cooker with double burners is arranged below the range hood, lampblack generated during cooking easily escapes from the side direction of the range hood main body 1, the lampblack sensor 4 is arranged on the side surface of the smoke collecting hood 12, so that the escaping diffusion of the cooking lampblack can be sensed more quickly, and the range hood main body 1 and/or the air purification device 2 are controlled to be opened to reduce the cooking lampblack.

In still other embodiments, the smoke sensor 4 may be disposed at the upper end of the decoration cover 11. It can be understood that cooking fumes tend to escape upwards and accumulate in the space above the kitchen, due to the action of the thermal plume of the cooking fumes; the upper end of the decoration cover 11 is closest to the upper space of the kitchen, the oil smoke sensor 4 is arranged at the upper end of the decoration cover 11, the oil smoke sensor 4 is favorable for acquiring the oil smoke concentration of the upper space of the kitchen, the oil smoke concentration can reflect the overall air quality of the kitchen more truly, and therefore the opening of the cigarette machine main body 1 and/or the air purification device 2 is favorably controlled according to the overall air quality of the kitchen.

Alternatively, referring to figure 1, the controller 3 is fixedly mounted to the cigarette maker body 1; it will be appreciated that the cigarette maker body 1 is generally larger in volume and has more and more convenient locations and spaces for mounting the controller 3 than the air cleaning device 2. The controller 3 is in communication connection with a lampblack blower of the cigarette machine body 1 and a purification blower of the air purification device 2 usually in a wired manner so as to send a starting signal and a stopping signal to the cigarette machine body 1 and the air purification device 2; of course, the controller 3 may also be in communication connection with the smoke exhaust fan of the smoke exhaust machine main body 1 and the purifying fan of the air purifying device 2 in a wireless manner, and particularly, in the technical scheme that the air purifying device 2 is movable relative to the smoke exhaust machine main body 1, the controller 3 is usually in wireless communication connection with the purifying fan of the air purifying device 2.

Optionally, the air inlet 111 is disposed on a side surface of the decoration cover 11 to facilitate oil smoke escaping to a side of the range hood to be sucked into the purification air duct, so as to reduce oil smoke at the side of the range hood; particularly, when the range hood is used with two burners below, the cooking fumes generated during cooking easily escape from the side of the range hood, and the air inlet 111 disposed on the side of the decorative cover 11 is more beneficial to sucking the cooking fumes.

Optionally, two opposite side surfaces of the decorative cover 11 are respectively provided with one air inlet 111 to reduce oil smoke on two sides of the range hood. Of course, the air inlet 111 may be provided only on one of both sides of the trim cover 11. Optionally, an air inlet grille is arranged on the air inlet 111 to prevent hands and other foreign objects from extending into the decoration cover 11.

Optionally, two filter elements 22 are provided, and each filter element 22 is disposed adjacent to one of the air inlets 111; therefore, once the air with the oil smoke enters the purifying air duct, the filtering of the filtering piece 22 can be obtained, and the probability that the air with the oil smoke pollutes other devices in the purifying air duct is reduced. However, the design is not limited thereto, and in other embodiments, only one filtering element 22 may be disposed near the air outlet 112, so as to purify and discharge the oil smoke in the air.

In this embodiment, the air inlet 111 is disposed on a side surface of the decoration cover 11; however, the design is not limited thereto, and in other embodiments, the air inlet 111 may also be disposed at the upper portion of the front surface of the decoration cover 11 or at the top of the main body 1 of the range hood to facilitate the suction of the soot accumulated in the upper space of the kitchen due to the thermal plume effect, thereby facilitating the air circulation and purification of the whole space of the kitchen. When the air inlet 111 is arranged at the top of the cigarette maker body 1, it is usually arranged on the top plate of the cigarette maker body 1 connected with the decorative cover 11; of course, in some other embodiments, when the top of the decorative cover 11 is bent to form a wider top flange, the air inlet 111 may be formed on the top flange.

Optionally, the smoke ventilator of the smoke ventilator main body 1 and the purification fan 23 of the air purification device 2 are connected to the same controller 3, that is, the smoke ventilator controls the smoke ventilator main body 1 and the air purification device 2 through the same controller 3. However, the design is not limited thereto, and in other embodiments, the range hood may also be provided with two different controllers 3 to respectively control the oil smoke blower of the range hood main body 1 and the purification blower 23 of the air purification device 2.

Optionally, a control switch is further included for controlling the cleaning fan 23 of the air cleaning device 2, which is generally provided on the smoke collection hood 12. The oil smoke blower of the cigarette machine main body 1 and the purification blower 23 of the air purification device 2 respectively use different control switches to realize the independent start-up and stop control of the cigarette machine main body 1 and the air purification device 2, so that a user can use the oil smoke exhaust function and the air purification function of the range hood more flexibly. The control switch is usually electrically connected to the controller 3 to realize the on/off control.

Referring to fig. 1 to 3, in an embodiment, the air outlet 112 is disposed on a front surface of the decoration cover 11; thus, after the purifying fan 23 of the air purifying device 2 is turned on, the air outlet 112 blows forward or at least has a forward wind component. In the cooking process, a user usually stands in front of the range hood, and the space in front of the range hood can be defined as a user breathing zone. It can be understood that the forward air outlet is favorable for conveying the purified air to the user breathing area, thereby being favorable for improving the air quality of the user breathing area, further reducing the probability of the user sucking the oil smoke, and reducing the harm of the oil smoke to the health of the user.

Optionally, the air outlet 112 is located at the lower part of the trim cover 11; it will be appreciated that the lower portion of the trim cover 11 is closer to the user's breathing zone, which is more conducive to delivering purified air to the user's breathing zone.

However, the design is not limited thereto, in some other embodiments, the air outlet 112 may also be disposed at the top of the smoke machine body 1 to facilitate pushing down the oil smoke accumulated in the upper space of the kitchen for being sucked and purified by the air purifying device 2, so as to bring the oil smoke in the upper part of the kitchen space into the air circulation purification, thereby further reducing the oil smoke in the kitchen; similarly, the outlet 112 is typically provided in the top panel of the cigarette maker body 1 that is attached to the trim cover 11, although the inlet 111 may be provided in the top flap of the trim cover 11 when the flap is folded to provide a wider top flap.

In other embodiments, the air outlet 112 may be disposed at the side of the decoration cover 11 or at the bottom of the cigarette maker body 1, so as to discharge the purified air. It should be noted that when the air outlet 112 is arranged at the bottom of the main body 1 of the cigarette making machine, it is usually arranged at the bottom of the smoke collecting hood 12; it will be appreciated that the clean air duct is also partially disposed within the hood 12 at this time. Optionally, the air outlet direction of the air outlet 112 is adjustable; thus, the air outlet direction can be changed to satisfy more air outlet requirements of the user on the air outlet 112, for example, the requirements of users with different heights for direct blowing or non-direct blowing can be satisfied.

Referring to fig. 5 and fig. 6 together, optionally, the air purification apparatus 2 further includes a wind guiding blade 100, where the wind guiding blade 100 is rotatably disposed at the air outlet 112, so as to adjust the wind outlet direction of the air outlet 112 by rotating the wind guiding blade 100, and the wind outlet direction of the air outlet 112 is continuously adjustable. However, the design is not limited to this, and in other embodiments, a plurality of air guiding frames for fixing the air guiding blades 100 may be installed on the air outlet 112, and the air guiding frames are configured, and the inclination angles of the air guiding blades 100 of different air guiding frames are different, so that the air outlet direction of the air outlet 112 can be changed by replacing different air guiding frames.

When the air outlet 112 is arranged on the front surface of the decorative cover 11, optionally, for the technical scheme that the air guide vane 100 is rotatable, the air guide vane 100 extends along the transverse direction, and in the rotating process of the air guide vane 100, the included angle between the air guide vane 100 and the horizontal plane ranges from-90 degrees to 90 degrees; it can be understood that when the included angle between the wind guide vane 100 and the horizontal plane is less than zero, it indicates that the wind guide vane 100 is inclined downward for wind guiding, and when the included angle between the wind guide vane 100 and the horizontal plane is greater than or equal to zero, it indicates that the wind guide vane 100 is inclined upward for wind guiding; in this embodiment, the wind guiding direction of the wind guiding blade 100 can be continuously adjustable from approximately vertical downward to approximately vertical upward.

Further optionally, an included angle between the air guide vane 100 and the horizontal plane ranges from-45 ° to 45 °, and under the included angle, the air guide direction of the air guide vane 100 can ensure a larger ventilation rate of the air outlet 112 while considering a user breathing area and an oil smoke accumulation area in front of and above the range hood; it can be understood that, the closer the included angle between the wind-guiding blade 100 and the horizontal plane is to-90 ° or 90 °, the greater the wind resistance generated by the wind-guiding blade 100.

In other embodiments, the angle between the wind-guiding blade 100 and the horizontal plane may range from 30 ° to 75 °. It can be understood that, in this rotation range, the wind guiding vanes 100 are all extending obliquely upward, so that the wind blown out from the wind outlet 112 is mainly delivered in an obliquely upward direction, and thus has a large upward wind outlet component, and the upward wind outlet component can push the oil smoke in the upper half part of the kitchen space to flow downward, so as to be sucked and purified by the wind inlet 111, and thus the oil smoke in the upper half part of the kitchen space is taken into the air circulation purification (as shown in fig. 9), which can further reduce the oil smoke in the kitchen.

During cooking, edible oil and food undergo a series of chemical reactions such as oxidation, cracking and polymerization at high temperature, a large amount of organic smoke is evaporated, and partial decomposition products are emitted into air in the form of oil mist to form oil smoke. The oil fume includes both edible oil and its heating decomposition or cracking product and also includes the physical and chemical reaction product of protein, polymer compound and various seasoning matters in food, and is one kind of matter containing gas, liquid and solid. Generally, the Particulate Matter Emission (PME) composed of liquid and solid in the oil smoke emission is defined as PME, and the Volatile Organic Compounds emission (VOCs) is defined as VOCs, and the oil smoke is composed of the above two substances.

In one embodiment, the filter 22 includes a HEPA filter screen 221 (high efficiency air filter screen) and an activated carbon filter screen 222 (see fig. 3). The HEPA filter screen 221 is mainly used for filtering particulate matters (liquid and solid) in oil smoke, and the material of the HEPA filter screen can comprise PP filter paper (polypropylene filter paper), glass fiber, PTFE filter paper (polytetrafluoroethylene filter paper), nano fiber, melt-blown polyester non-woven fabric and the like, so that the HEPA filter screen has the characteristics of large dust holding capacity and high filter precision, the filter efficiency of the oil smoke particulate matters can exceed 90%, and the HEPA filter screen can be processed into required size and shape according to the machine type requirements. The activated carbon filter screen 222 is mainly used for filtering volatile organic compounds (smell) in the oil smoke, and the material of the activated carbon filter screen may include activated carbon fibers, activated carbon particles, and the like, and the adopted activated carbon material may be coconut shells, fruit shells, coal-based carbon, and the like, which has a large specific surface area, or the adopted activated carbon material may be a molecular sieve material, which has a good adsorption effect. Optionally, the HEPA filter 221 is located upstream of the activated carbon filter 222 in the airflow direction, so that the particles in the oil smoke are prevented from adhering to the activated carbon filter 222, thereby prolonging the service life of the activated carbon filter 222.

Optionally, in the direction of the air flow, the filter element 22 is located upstream of the purge fan 23; so, can make the air current through purification fan 23 be the air current after the purification, avoid the oil smoke to be in purification fan 23 is last to gather, prolongs purification fan 23 life-span.

Referring to fig. 1 to 4, 7 and 8, in an embodiment, the decoration cover 11 is provided with a filter mounting port 113, and the filter 22 is detachably disposed on the purification air duct through the filter mounting port 113; in this manner, removal, cleaning or replacement of the filter element 22 may be facilitated. It will be appreciated that the filter element 22 generally has a certain life, for example, the HEPA filter 221 used in the present embodiment has a design life of generally more than 1 month, and needs to be replaced after the life is reached, so as to ensure the good purification capability of the air purification apparatus 2, and in addition, the filter element is periodically or aperiodically removed for cleaning or cleaning, which is beneficial to prolong the life.

Optionally, a filter cover 24 is arranged on the filter mounting port 113; so, will filter piece 22 certainly filter a mounting hole 113 and pack into and purify the wind channel after, will filter a lid 24 lid and close and filter a mounting hole 113, can avoid filtering piece 22 and shake out, improve the structural stability of product, can also avoid foreign matter etc. to get into from filtering a mounting hole 113 simultaneously and purify in the wind channel.

Optionally, the air purifying device 2 further includes a purifying housing 21 disposed in the decorative cover 11, the purifying air duct is at least partially defined by the purifying housing 21, and the purifying housing 21 is provided with an air inlet 211 communicating with the air inlet 111 and an air outlet 212 communicating with the air outlet 112. It can be understood that the independent purifying shell 21 can limit the purifying air channel more accurately, so as to guide the trend of the purifying air flow accurately and improve the purifying efficiency, and in addition, the purifying shell 21 can more conveniently provide attachment for the filtering element 22 and the purifying fan 23; however, the design is not limited to this, and in other embodiments, a partition plate or the like may be simply provided in the decoration cover 11 to separate the purification air duct. Without loss of generality, the purifying housing 21 is provided with a mounting through hole 213 corresponding to the filter mounting hole 113, and the filter 22 is detachably connected with the purifying housing 21 through the filter mounting hole 113 and the mounting through hole 213.

In this embodiment, the filter cover 24 provided in the filter attachment opening 113 is connected to the purification case 21. However, the design is not limited thereto, and in other embodiments, the filter cover 24 may be connected to the decorative cover 11. In addition, in this embodiment, optionally, one side of the filter cover 24 is rotatably connected to the purifying housing 21, and the other side is detachably connected to the purifying housing 21; in this way, after the filter cover 24 is opened, the filter cover 24 is still attached to the purge housing 21, and the filter cover 24 is prevented from being lost. Further alternatively, the other side of the filter cover 24 can be, but is not limited to, connected to the purification housing 21 by a push-type snap switch assembly, so that the filter cover 24 can be conveniently opened and closed by pressing, and the operation is convenient.

Optionally, the filter element 22 is drawably provided in the purification housing 21; it will be appreciated that removal, cleaning or replacement of the filter element 22 can be more easily performed by means of a pull-out. Optionally, a guide rail 216 is provided in the purification housing 21, which extends toward the mounting opening 213, and the filter element 22 is inserted into the purification housing 21 along the guide rail 216; the guide rail 216 has a good guiding and mounting function, and can facilitate the drawing, dismounting and mounting of the filter member 22.

Referring to fig. 2-6, in one embodiment, the range hood body 1 further includes a fan guard 13 disposed within the trim cover 11, the range hood duct being at least partially defined by the fan guard 13, and the purge shell 21 is disposed on a front side of the fan guard 13. In this embodiment, the purifying housing 21 is located on the front surface of the fan cover 13, so that the purifying housing 21 is closer to the air outlet 112 on the decorative cover 11, thereby shortening the distance between the purifying housing 21 and the air outlet 112, facilitating the communication between the air outlet 212 on the purifying housing 21 and the air outlet 112, and making the wind speed of the purified wind blown from the air outlet 112 larger and the air supply farther. Optionally, purify casing 21 and can dismantle the front of connecting in fan guard 13, promptly, purify casing 21 and depend on fan guard 13 and install, compare in purifying casing 21 and depend on the technical scheme that decorate cover 11 and install, this technical scheme can reduce the probability of decorating cover 11 deformation, simultaneously, the removable mounting that purifies casing 21 can be convenient for the change of its inside device.

Optionally, the purification fan 23 is a centrifugal fan, on one hand, the centrifugal fan has a large air volume and a small noise, so that far air supply can be realized at a low noise; on the other hand, the centrifugal fan has the function of changing the wind direction (axial air inlet and radial air outlet), and is favorable for realizing air inlet and positive air outlet at two sides.

Further, a centrifugal volute 214 for installing a centrifugal fan is arranged in the purification housing 21, an air outlet side of the centrifugal volute 214 faces downward and is bent forward to extend an air guide section 215, and the air guide section 215 extends to a position connected with the air outlet 112. It can be understood that the end of the air guiding segment 215 far away from the centrifugal volute 214 is provided with the air outlet 212. In this embodiment, the air guide section 215 extending by bending can supply air forward when the axial direction of the centrifugal fan is perpendicular or nearly perpendicular to the fan cover 13, and at this time, the installation space in the front-rear direction required by the centrifugal fan is small. It will be appreciated that if the radial direction of the centrifugal fan is perpendicular or nearly perpendicular to the fan guard 13, the forward or rearward installation space required for the centrifugal fan is relatively large, since the diameter of the centrifugal fan is typically greater than or equal to the axial thickness of the centrifugal fan. Optionally, the centrifugal volute 214 includes a volute body and a volute cover that are joined to facilitate installation of the centrifugal fan into the centrifugal volute 214.

The invention also provides a control method of the range hood. Referring to fig. 10, fig. 10 is a flowchart illustrating a control method of a range hood according to a first embodiment of the present invention.

The control method of the range hood of the embodiment adopts the range hood in each embodiment. The control method of the range hood comprises the following steps:

step S110, acquiring the oil smoke concentration detected by the oil smoke sensor; and

and step S120, controlling the starting and stopping states of the cigarette machine main body and the air purification device and the air outlet volume of the air purification device according to the oil smoke concentration detected by the oil smoke sensor.

If the range hood is in a shutdown state, namely the range hood main body and the air purification device are both in the shutdown state, acquiring the oil smoke concentration detected by the oil smoke sensor, and controlling the start-stop state of the range hood main body and the air purification device according to the oil smoke concentration, and the air outlet volume of the air purification device. It can be understood, the size of oil smoke concentration can represent the air quality in the kitchen space good or bad, so the size of accessible oil smoke concentration judges the demand of opening of cigarette machine main part and/or air purification device, and the regulation demand of air purification device's air-out amount of wind, thereby when having the demand of opening, control cigarette machine main part and/or air purification device are automatic to be opened, or adjust air purification device's air-out amount of wind, promote range hood's intellectuality, and then can avoid forgetting to open cigarette machine main part and/or air purification device because of the user, and the phenomenon that leads to the produced oil smoke of culinary art to spread appears in the kitchen space.

In one embodiment, step S120 includes: if the oil smoke concentration is greater than or equal to a first preset concentration and less than a second preset concentration, the starting operation of the air purification device is controlled based on a first preset air outlet volume when the cigarette machine main body is in a shutdown state and the air purification device is in the shutdown state.

In this embodiment, when the oil smoke concentration detected by the oil smoke sensor is obtained, whether the oil smoke concentration is greater than or equal to a first preset concentration is determined, and if yes, whether the oil smoke concentration is less than a second preset concentration is determined. When the oil smoke concentration is greater than or equal to the first preset concentration and less than the second preset concentration, the oil smoke which slightly influences users and the environment or a small amount of oil smoke generated in the cooking process can be judged to exist in a kitchen, so that the starting operation of the air purification device is controlled based on the first preset air outlet volume, the oil smoke is subjected to internal circulation purification by the air purification device, and it can be understood that the energy consumption required by starting the air purification device is lower than that required by starting the cigarette machine main body, of course, the air volume of a purification fan of the air purification device is smaller than that of an oil smoke fan of the cigarette machine main body, and the energy consumption required by starting the air purification device is the lowest under the condition that the requirement for improving the air quality can be met by only starting the air purification device. The first preset air outlet volume is smaller than half of the maximum air outlet volume of the air purification device.

In another embodiment, step S120 includes: if the oil smoke concentration is greater than or equal to a second preset concentration and less than a third preset concentration, controlling the air purification device based on a second preset air outlet volume when the cigarette machine main body is in a shutdown state, wherein the second preset air outlet volume is greater than the first preset air outlet volume.

In this embodiment, when the oil smoke concentration is greater than or equal to the second preset concentration, whether the oil smoke concentration is less than the third preset concentration is judged, if the oil smoke concentration is less than the third preset concentration, more oil smoke is generated in the cooking process can be judged, and the air purification device is controlled based on the second preset air outlet amount to increase the air outlet amount of the air purification device, purify the oil smoke in a kitchen through the air purification device with large air amount, and reduce the energy consumption of the range hood while improving the oil smoke purification efficiency of the range hood. Specifically, if the cigarette machine main part is in the off-state just air purification device is in the off-state, then directly start air purification device based on the second preset air-out volume, if the cigarette machine main part is in the off-state and air purification device is in the running state, then adjust air-out volume of air purification device to the second preset air-out volume, wherein the second preset air-out volume is greater than the first preset air-out volume, for example the second preset air-out volume is the maximum air-out volume of air purification device.

In another embodiment, step S120 includes: and if the oil smoke concentration is greater than or equal to a third preset concentration, controlling the starting operation of the range hood main body and the air purification device.

In this embodiment, if the oil smoke concentration is greater than the third preset concentration, then can judge that the culinary art in-process has produced the oil smoke of maximum volume, at this moment, if only open cigarette machine main part 1 and arrange the oil smoke outward, still there is not few oil smoke upwards to escape from the edge of range hood, if only open air purification device 2, then can not effectual purification kitchen in the oil smoke, thereby control cigarette machine main part 1 and air purification device 2 and all open, with the oil absorption cigarette wind channel that utilizes cigarette machine main part 1 on one side with a large amount of oil smoke exhaust outdoor, the another side utilizes air purification device 2's purification wind channel to inhale repurification to the oil smoke that upwards escapes, thereby get rid of indoor oil smoke fast.

Further, the lampblack sensor comprises a particulate matter sensor and a smell sensor, and the lampblack concentration comprises a particulate matter concentration and a smell concentration; the first preset concentration comprises a first preset particulate matter concentration and a first preset odor concentration; the second preset concentration comprises a second preset particulate matter concentration and a second preset odor concentration; the third preset concentration comprises a third preset particulate matter concentration and a third preset odor concentration; the step S120 includes:

In the control method of the range hood provided by the embodiment, the oil smoke concentration detected by the oil smoke sensor is obtained; and then according to the oil smoke concentration control that the oil smoke sensor detected the cigarette machine main part and air purification device open the state of opening, and air purification device's air-out amount of wind, can control cigarette machine main part and air purification device according to oil smoke concentration open or adjust air purification device's air-out amount of wind, and then avoid the user to forget to open cigarette machine main part and/or air purification device, lead to the produced oil smoke of culinary art to spread in the kitchen space, and cause the condition emergence of oil smoke pollution and health damage to the human body.

The invention further provides a computer readable storage medium, wherein a control program of the range hood is stored on the computer readable storage medium, and the control program of the range hood realizes the steps of the control method of the range hood when being executed by the processor. Since the computer-readable storage medium adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described in detail herein.

It should be noted that the technical solutions of the embodiments of the present invention can be combined with each other, but must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory or can not be realized, the combination of the technical solutions should be considered to be absent and not to be within the protection scope of the present invention.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.

Claims

1. A range hood, comprising:

a cigarette machine main body; and

2. The range hood according to claim 1, wherein if the soot concentration is greater than or equal to a first preset concentration and less than a second preset concentration, the controller controls the air purification device to start based on a first preset air outlet volume when the range hood body is in a shutdown state and the air purification device is in a shutdown state.

3. The range hood according to claim 2, wherein if the soot concentration is greater than or equal to a second predetermined concentration and less than a third predetermined concentration, the controller controls the air purification device based on a second predetermined air outlet volume when the hood body is in a shutdown state, wherein the second predetermined air outlet volume is greater than the first predetermined air outlet volume.

4. The range hood of claim 3, wherein the controller controls the range hood body and the air cleaning device to start operation if the concentration of the lampblack is greater than or equal to a third preset concentration.

5. The range hood of claim 4, wherein the soot sensor comprises a particulate matter sensor and/or an odor sensor.

6. The range hood of claim 5, wherein the soot sensor comprises a particulate matter sensor and a smell sensor, and the soot concentration comprises a particulate matter concentration and a smell concentration; the first preset concentration comprises a first preset particulate matter concentration and a first preset odor concentration; the second preset concentration comprises a second preset particulate matter concentration and a second preset odor concentration; the third preset concentration comprises a third preset particulate matter concentration and a third preset odor concentration;

7. The range hood according to any one of claims 1 to 6 wherein the machine body comprises a decorative hood and a smoke collection hood disposed below the decorative hood;

the oil smoke sensor is arranged at the upper end of the decorative cover.

8. The range hood of claim 7, wherein the air inlet is disposed on a side of the decorative cover; or,

the air inlet is formed in the top of the cigarette machine main body.

9. The range hood of claim 7, wherein the air outlet is disposed on the front surface of the decorative cover; or,

the air outlet is arranged on the side surface of the decorative cover; or,

the air outlet is formed in the top of the cigarette machine main body; or,

the air outlet is arranged at the bottom of the cigarette machine main body.

10. A control method of a range hood, which is applied to the range hood of any one of claims 1 to 9, the control method of the range hood comprising the steps of:

acquiring the oil smoke concentration detected by the oil smoke sensor; and

11. The control method of the range hood according to claim 10, wherein the step of controlling the start/stop states of the range hood body and the air purification device according to the smoke concentration detected by the smoke sensor and the air outlet volume of the air purification device comprises:

12. The method for controlling a range hood according to claim 11, wherein the step of controlling the start/stop states of the range hood body and the air purification device according to the smoke concentration detected by the smoke sensor, and the air outlet volume of the air purification device further comprises:

13. The method for controlling a range hood according to claim 12, wherein the step of controlling the start/stop states of the range hood body and the air purification device according to the smoke concentration detected by the smoke sensor, and the air outlet volume of the air purification device further comprises:

and if the oil smoke concentration is greater than or equal to a third preset concentration, controlling the starting operation of the range hood main body and the air purification device.

14. The control method of the range hood according to any one of claims 10 to 13, wherein the soot sensor comprises a particulate matter sensor and a smell sensor, and the soot concentration comprises a particulate matter concentration and a smell concentration; the first preset concentration comprises a first preset particulate matter concentration and a first preset odor concentration; the second preset concentration comprises a second preset particulate matter concentration and a second preset odor concentration; the third preset concentration comprises a third preset particulate matter concentration and a third preset odor concentration;

the step of controlling the cigarette machine main body and the starting and stopping state of the air purification device according to the oil smoke concentration detected by the oil smoke sensor and the air outlet air quantity of the air purification device comprises the following steps:

15. A computer-readable storage medium, characterized in that the computer-readable storage medium stores thereon a control program of a range hood, which when executed by a processor implements the steps of the control method of a range hood as recited in any one of claims 10 to 14.